*The Angi rating for Basement Leak Repair companies in Aspen Hill, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Leak Repair needs.
*The HomeAdvisor rating for Basement Leak Repair companies in Aspen Hill, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Leak Repair needs.
Last update on June 09, 2025
Here at Next Day Toilet Replacements, we offer swift, reliable toilet replacement services for your home. Our expert team ensures hassle-free installation, quality products, and customer satisfaction—all in just one day! Flush away your worries!
"Marvin and his team are excellent. They were prompt and rather than replacing a faucet, ended up fixing it for a saving of over $150! Also, the faucet they fixed was one where multiple plumbers said they could not fix and therefore needed to be replaced. One evens said they needed to break a wall! The original faucet is very expensive, so the $150 replacement was for a cheap Home Depot version. So yes, I would recommend them because of their skill and ability to get the job done. Also, very polite."
Jaffrey A on March 2025
Here at Next Day Toilet Replacements, we offer swift, reliable toilet replacement services for your home. Our expert team ensures hassle-free installation, quality products, and customer satisfaction—all in just one day! Flush away your worries!
"Marvin and his team are excellent. They were prompt and rather than replacing a faucet, ended up fixing it for a saving of over $150! Also, the faucet they fixed was one where multiple plumbers said they could not fix and therefore needed to be replaced. One evens said they needed to break a wall! The original faucet is very expensive, so the $150 replacement was for a cheap Home Depot version. So yes, I would recommend them because of their skill and ability to get the job done. Also, very polite."
Jaffrey A on March 2025
BasementRemodeling.com / Basement Masters - licensed and insured, award winning Basement Remodeling and Finishing company. Highest rated basement renovation contractor in Maryland. Finished Basements are our specialty. We specialize in custom basement remodeling and finishing and other large-scale remodels. We offer free in home and over-the-phone estimate and consultation. Here at BasementRemodeling.com we believe that QUALITY AND EXCEPTIONAL CRAFTSMANSHIP must always come along with AFFORDABILITY. keywords: finished basement basements remodeling.
"Basement Remodeling just completed our basement remodeling project, on time and on budget. We couldn’t be more pleased! We investigated other remodeling companies but chose Basement Remodeling after our discussions with Eric, in part because we believed we could count on their expertise in handling the inevitable quirks of renovating a 70 year old house. Our project (and budget) was probably fairly modest when compared to many remodeling projects, and Eric offered suggestions for inexpensive problem solving (rehanging existing doors, for example) rather than trying to upsell us on other, more costly solutions. We fully renovated about one-third of the basement space which included the furnace, water heater and a small but completely unfinished laundry area. Basement Remodeling created an enclosed area for the furnace and water heater and neatly disguised the electric panel, adding a well-designed, efficient and attractive wet bar with cabinetry, appliances and a custom pantry. The renovation also included cosmetic upgrades to the rest of the basement space, adding new flooring and fresh paint. The space now looks absolutely terrific! The company took care of everything, from permitting to cleanup, and every person on the team was thoughtful, responsive and a pleasure to work with. Any concerns we had along the way were addressed immediately and quickly resolved to our satisfaction. We highly recommend Basement Remodeling!"
Tom C on June 2025
BasementRemodeling.com / Basement Masters - licensed and insured, award winning Basement Remodeling and Finishing company. Highest rated basement renovation contractor in Maryland. Finished Basements are our specialty. We specialize in custom basement remodeling and finishing and other large-scale remodels. We offer free in home and over-the-phone estimate and consultation. Here at BasementRemodeling.com we believe that QUALITY AND EXCEPTIONAL CRAFTSMANSHIP must always come along with AFFORDABILITY. keywords: finished basement basements remodeling.
"Basement Remodeling just completed our basement remodeling project, on time and on budget. We couldn’t be more pleased! We investigated other remodeling companies but chose Basement Remodeling after our discussions with Eric, in part because we believed we could count on their expertise in handling the inevitable quirks of renovating a 70 year old house. Our project (and budget) was probably fairly modest when compared to many remodeling projects, and Eric offered suggestions for inexpensive problem solving (rehanging existing doors, for example) rather than trying to upsell us on other, more costly solutions. We fully renovated about one-third of the basement space which included the furnace, water heater and a small but completely unfinished laundry area. Basement Remodeling created an enclosed area for the furnace and water heater and neatly disguised the electric panel, adding a well-designed, efficient and attractive wet bar with cabinetry, appliances and a custom pantry. The renovation also included cosmetic upgrades to the rest of the basement space, adding new flooring and fresh paint. The space now looks absolutely terrific! The company took care of everything, from permitting to cleanup, and every person on the team was thoughtful, responsive and a pleasure to work with. Any concerns we had along the way were addressed immediately and quickly resolved to our satisfaction. We highly recommend Basement Remodeling!"
Tom C on June 2025
THE MOST TRUSTED Fall in Love With Your Home All Over Again! SCHEDULE HOME REMODELING SERVICES IN GAITHERSBURG, MD & SURROUNDING AREAS. Has your home turned from a dream into a nightmare? If it needs a growing list of repairs and updates, turn to Global Renovations, LLC in Gaithersburg, MD. We offer a variety of commercial and home remodeling services that will help you love your property again. Call today to learn more about our affordable rates. We offer bathroom and kitchen remodeling, basement remodeling, flooring, painting, drywall repair, handyman services, Power wash, carpentry, and much more. Please call for more info thanks!
"Naveed and his team did a fantastic job remodeling an old storage room in our basement into a studio quality home gym. From the first day, Naveed had great ideas about how to optimize the space while minimizing the cost of the project. While we requested several additions along the way, Naveed still managed to complete everything before the original deadline. We were amazing at how the gym turned out and impressed with his entire team's professionalism and skill. This was the second project we have done with Global Renovations and we look forward to more in the future!"
rashik k on October 2024
THE MOST TRUSTED Fall in Love With Your Home All Over Again! SCHEDULE HOME REMODELING SERVICES IN GAITHERSBURG, MD & SURROUNDING AREAS. Has your home turned from a dream into a nightmare? If it needs a growing list of repairs and updates, turn to Global Renovations, LLC in Gaithersburg, MD. We offer a variety of commercial and home remodeling services that will help you love your property again. Call today to learn more about our affordable rates. We offer bathroom and kitchen remodeling, basement remodeling, flooring, painting, drywall repair, handyman services, Power wash, carpentry, and much more. Please call for more info thanks!
"Naveed and his team did a fantastic job remodeling an old storage room in our basement into a studio quality home gym. From the first day, Naveed had great ideas about how to optimize the space while minimizing the cost of the project. While we requested several additions along the way, Naveed still managed to complete everything before the original deadline. We were amazing at how the gym turned out and impressed with his entire team's professionalism and skill. This was the second project we have done with Global Renovations and we look forward to more in the future!"
rashik k on October 2024
US GRANITE MARBLE INC. was established in 2009 and is now one of the largest full-service kitchen and bath stone fabricators in the area. Over the last 15 years we have proudly served the DMV area and beyond. From commercial, residential, and even government jobs we have thrived in them all. We specialize in kitchen remodeling, kitchen countertops, bathroom remodels/countertops, bar remodeling/countertops, mosaic tiles, knobs and pulls, flooring, as well as cabinetry. We have over 500 slabs on site to see in person to help you with your selections. We have a wide range of quartz, marble, granite, and quartzite, and soapstone's on site. Our staff is widely trained in customer service, installations, as well as fabrication, and repairs. US GRANITE MARBLE INC. proudly works with contractors as well as homeowners. We can truly help to make your construction dreams a reality. We have 7 different cabinet manufacturers that we are licensed to sell, install, assemble, as well as deliver. We have over 300 mosaic tiles to choose from, we can also do a stone countertop full height backsplash for your next project. We carry multiple brands, styles, and colors of waterproof vinyl laminate flooring as well as ceramic/porcelain tiles for your everyday needs as well. We have access to over 50 types of sinks such as porcelain/ceramic, fire clay, stainless steel, under mounts, farm sinks, and even top mounted sinks. We also specialize in fireplace surrounds, hearths, and even the cutouts for electric fireplaces mounted into the stone. The sky is the limit when it comes to our designs and installs. Call us today 301-328-3678 and we can get you set up for a free at home measurement to help you get your next dream project a reality. Specializing in Residential and Commercial Quartz, Granite, Marble, Cambria Quartz, Silestone, Zodiaq, Caesarstone Countertops fabrication and installation. Easy Steps to your dream granite transformations...
"DO NOT HIRE!!!!!!! Completely unprofessional, BEWARE. They did a terrible job, and made a dent in the sink they installed and did not even mention it. They knew about the dent and tried to hide it. The caulking was also a disaster. They left a mess and did not clean up before leaving. They also didn't turn the water tightly shut enough and caused the water to leak and in the middle of the night came down stairs to find a large portion of the dry wall from the ceiling collapsed and ruined the entire carpet in the basement and our new furniture. We called them the next day to let them know and they responded that they did not cause the leak even though it is very clear that they did. I wish I never hired them. The project manager I spoke to on the phone, Jamal, was rude and very unprofessional. I would never recommend them! If I could give them 0 stars I would."
Blair L on October 2022
US GRANITE MARBLE INC. was established in 2009 and is now one of the largest full-service kitchen and bath stone fabricators in the area. Over the last 15 years we have proudly served the DMV area and beyond. From commercial, residential, and even government jobs we have thrived in them all. We specialize in kitchen remodeling, kitchen countertops, bathroom remodels/countertops, bar remodeling/countertops, mosaic tiles, knobs and pulls, flooring, as well as cabinetry. We have over 500 slabs on site to see in person to help you with your selections. We have a wide range of quartz, marble, granite, and quartzite, and soapstone's on site. Our staff is widely trained in customer service, installations, as well as fabrication, and repairs. US GRANITE MARBLE INC. proudly works with contractors as well as homeowners. We can truly help to make your construction dreams a reality. We have 7 different cabinet manufacturers that we are licensed to sell, install, assemble, as well as deliver. We have over 300 mosaic tiles to choose from, we can also do a stone countertop full height backsplash for your next project. We carry multiple brands, styles, and colors of waterproof vinyl laminate flooring as well as ceramic/porcelain tiles for your everyday needs as well. We have access to over 50 types of sinks such as porcelain/ceramic, fire clay, stainless steel, under mounts, farm sinks, and even top mounted sinks. We also specialize in fireplace surrounds, hearths, and even the cutouts for electric fireplaces mounted into the stone. The sky is the limit when it comes to our designs and installs. Call us today 301-328-3678 and we can get you set up for a free at home measurement to help you get your next dream project a reality. Specializing in Residential and Commercial Quartz, Granite, Marble, Cambria Quartz, Silestone, Zodiaq, Caesarstone Countertops fabrication and installation. Easy Steps to your dream granite transformations...
"DO NOT HIRE!!!!!!! Completely unprofessional, BEWARE. They did a terrible job, and made a dent in the sink they installed and did not even mention it. They knew about the dent and tried to hide it. The caulking was also a disaster. They left a mess and did not clean up before leaving. They also didn't turn the water tightly shut enough and caused the water to leak and in the middle of the night came down stairs to find a large portion of the dry wall from the ceiling collapsed and ruined the entire carpet in the basement and our new furniture. We called them the next day to let them know and they responded that they did not cause the leak even though it is very clear that they did. I wish I never hired them. The project manager I spoke to on the phone, Jamal, was rude and very unprofessional. I would never recommend them! If I could give them 0 stars I would."
Blair L on October 2022
General contractor servicing Montgomery County and parts of Washington DC. Willis Builders is a family owned and operated company, that specializes in additions, kitchen, bathroom and basement remodeling. Our team is skilled in all aspects of residential construction. Willis Builders has built a business on honesty, dedication and hard work. Our goal is to make your renovation dream come true! Contact us today to schedule a free estimate.
"Excellent work. Very happy with the results."
Jon A on May 2025
General contractor servicing Montgomery County and parts of Washington DC. Willis Builders is a family owned and operated company, that specializes in additions, kitchen, bathroom and basement remodeling. Our team is skilled in all aspects of residential construction. Willis Builders has built a business on honesty, dedication and hard work. Our goal is to make your renovation dream come true! Contact us today to schedule a free estimate.
"Excellent work. Very happy with the results."
Jon A on May 2025
H&C Construction, Design & Build is your ideal partner for home transformation. We specialize in kitchen and bathroom remodels, ensuring that every detail, from planning to execution, is handled with precision. Trust us to create spaces that reflect your style and needs, enhancing the functionality and aesthetics of your home.
"Did a great job. Repaired/replaced rotted wood on front porch. Would use again if needed."
MH T on March 2025
H&C Construction, Design & Build is your ideal partner for home transformation. We specialize in kitchen and bathroom remodels, ensuring that every detail, from planning to execution, is handled with precision. Trust us to create spaces that reflect your style and needs, enhancing the functionality and aesthetics of your home.
"Did a great job. Repaired/replaced rotted wood on front porch. Would use again if needed."
MH T on March 2025
Vienna Showroom: 112 Church St. NW. Vienna, VA 22180 - Phone: 703-537-0857 Herndon Showroom: 285 Sunset Park Dr. Herndon, VA 20170 - Phone: 703-429-4323 https://mykitchenandbath.com/ Since 1994, My Kitchen and Bath has created some of the most exciting kitchens and bathrooms in the Washington, D.C. region. We are located in Herndon and Vienna. We offer the finest custom cabinetry designed to your exact specifications. We are dedicated to meeting and exceeding your every expectation. Custom kitchen and bath projects require great attention to detail. Your kitchen or bath project is planned to the utmost precision and realized by some of the finest and most experienced installation professionals in the business. Our talented designers see your project through from start to finish supervising the contractor throughout the installation phase. For more information, request a brochure or make an appointment email us or call 703-429-4323
"My Kitchen and bath had exceeded my expectations with regards to quality, price , and timeliness of my kitchen project . The PM estimated 2 and half weeks to 3 weeks but it was done in 2 weeks, just before Christmas ! The staff was very friendly and attentive . They listened and understood what I wanted for my dream kitchen . Duncan, presented me with options for my kitchen to meet my budget . Although ,I chose the latter which was to have my dream kitchen and decide not to bend on that. Sam was thorough with all the final walk through and made sure I was happy before leaving my house. Attention to detail was what I appreciated most with the whole process . I felt safe in the sense where my kitchen would not be left unfinished midway . I recommend this company to anyone who is renovating !"
Brenda N on January 2025
Vienna Showroom: 112 Church St. NW. Vienna, VA 22180 - Phone: 703-537-0857 Herndon Showroom: 285 Sunset Park Dr. Herndon, VA 20170 - Phone: 703-429-4323 https://mykitchenandbath.com/ Since 1994, My Kitchen and Bath has created some of the most exciting kitchens and bathrooms in the Washington, D.C. region. We are located in Herndon and Vienna. We offer the finest custom cabinetry designed to your exact specifications. We are dedicated to meeting and exceeding your every expectation. Custom kitchen and bath projects require great attention to detail. Your kitchen or bath project is planned to the utmost precision and realized by some of the finest and most experienced installation professionals in the business. Our talented designers see your project through from start to finish supervising the contractor throughout the installation phase. For more information, request a brochure or make an appointment email us or call 703-429-4323
"My Kitchen and bath had exceeded my expectations with regards to quality, price , and timeliness of my kitchen project . The PM estimated 2 and half weeks to 3 weeks but it was done in 2 weeks, just before Christmas ! The staff was very friendly and attentive . They listened and understood what I wanted for my dream kitchen . Duncan, presented me with options for my kitchen to meet my budget . Although ,I chose the latter which was to have my dream kitchen and decide not to bend on that. Sam was thorough with all the final walk through and made sure I was happy before leaving my house. Attention to detail was what I appreciated most with the whole process . I felt safe in the sense where my kitchen would not be left unfinished midway . I recommend this company to anyone who is renovating !"
Brenda N on January 2025
DMV Kitchen and Bath Inc is a family owned and operated Full Service General Contractor specializing in Kitchen & Bathroom Remodeling and Design/Build Services. We ensure a high quality finished product with flexible and attentive service at a competitive price. We pride ourselves on having the ability to make our clients visions come to life with great design ideas and execution. Showrooms: Chantilly, (VA) (703) 657-0997 and Gaithersburg, (MD)
"It is my pleasure to review DMV kitchen and bath. They did an outstanding job from conception through to the last details in finishing an extensive series of renovations - complete kitchen tear-down and renovation, master bathroom and closet teardown and renovation, two bathroom complete retiling/renovation, building two new rooms out of a very large basement, and replacing two forced air HVAC systems - they managed all aspects including proper construction permits. They did high-quality work at a very good price. They did an outstanding job with the work, with high attention to detail. Their communication was very strong from beginning to finish, their initial plan recommendations were excellent, they made several recommendations to not only make the job better, but also make it more cost effective along the way. They were reliable and consistent, and very genuine, "real" people. I have to imagine there will be very high demand for their services. I can’t recommend highly enough. Very timely, excellent communication, quick and high-quality professional work at a competitive price."
William C on March 2025
DMV Kitchen and Bath Inc is a family owned and operated Full Service General Contractor specializing in Kitchen & Bathroom Remodeling and Design/Build Services. We ensure a high quality finished product with flexible and attentive service at a competitive price. We pride ourselves on having the ability to make our clients visions come to life with great design ideas and execution. Showrooms: Chantilly, (VA) (703) 657-0997 and Gaithersburg, (MD)
"It is my pleasure to review DMV kitchen and bath. They did an outstanding job from conception through to the last details in finishing an extensive series of renovations - complete kitchen tear-down and renovation, master bathroom and closet teardown and renovation, two bathroom complete retiling/renovation, building two new rooms out of a very large basement, and replacing two forced air HVAC systems - they managed all aspects including proper construction permits. They did high-quality work at a very good price. They did an outstanding job with the work, with high attention to detail. Their communication was very strong from beginning to finish, their initial plan recommendations were excellent, they made several recommendations to not only make the job better, but also make it more cost effective along the way. They were reliable and consistent, and very genuine, "real" people. I have to imagine there will be very high demand for their services. I can’t recommend highly enough. Very timely, excellent communication, quick and high-quality professional work at a competitive price."
William C on March 2025
Value Dry is committed to never stop fighting the damaging effects of moisture and poor air quality in your home. We transform wet basements and musty crawl spaces into dry, healthy, useable space through basement waterproofing and crawl space encapsulation. We provide the best lifetime transferable warranty in the DC/Baltimore area. Our services include sump installation and replacement, battery backup sump pumps, foundation waterproofing, vapor barriers, humidity/ventilation control, outside stairwell drains, window well drains, egress windows, insulation, and foundation repair. We are conveniently located between the Baltimore and Washington, D.C. beltways and our service range covers Maryland, Virginia, Washington, D.C., Southern Delaware and the panhandle of West Virginia. Our entire team, from our call center staff to our inspectors and installers, is fully committed to maintaining the highest standards of customer service and protecting your biggest investment, your home. Our work is backed by a lifetime transferable warranty and a 24/7 service team. We are very proud of the reputation that we have built through online reviews, within our industry, and among our customers. Give us a call at (888) 768-2583 to schedule a free consultation or if you have any questions.
"They were expensive, but clearly the best product."
Victoria E on December 2024
Value Dry is committed to never stop fighting the damaging effects of moisture and poor air quality in your home. We transform wet basements and musty crawl spaces into dry, healthy, useable space through basement waterproofing and crawl space encapsulation. We provide the best lifetime transferable warranty in the DC/Baltimore area. Our services include sump installation and replacement, battery backup sump pumps, foundation waterproofing, vapor barriers, humidity/ventilation control, outside stairwell drains, window well drains, egress windows, insulation, and foundation repair. We are conveniently located between the Baltimore and Washington, D.C. beltways and our service range covers Maryland, Virginia, Washington, D.C., Southern Delaware and the panhandle of West Virginia. Our entire team, from our call center staff to our inspectors and installers, is fully committed to maintaining the highest standards of customer service and protecting your biggest investment, your home. Our work is backed by a lifetime transferable warranty and a 24/7 service team. We are very proud of the reputation that we have built through online reviews, within our industry, and among our customers. Give us a call at (888) 768-2583 to schedule a free consultation or if you have any questions.
"They were expensive, but clearly the best product."
Victoria E on December 2024
Complete kitchen and bath remodeling including plumbing and electrical. Highly experienced and certified technicians with over 20 years of field knowledge and empierce that will respect your home and delivery an amazing experience that you will remember and share with others for years to come. We can customize any project and work with any budget. You will admire and adore your new space.
"After I terminated the lease of my tenant in early 2023, I decided to do the whole house remodel before selling it because of the age of the house and TLC it needed. The original contractor I hired ended up going to jail for child abuse charges and I had to find another contractor to finish the job. I got a number of quotes and decided to go with Donna from AND Contractors, LLC. It is very difficult to come into a project that somebody else started and the quotes reflected that but Donna’s estimate was fair and I felt comfortable in my interactions with Donna. Don't let the fact that a woman runs the business fool you - she is a real tough but fair boss. She was on the job site every day! She treats her people right but also lets them know when they mess up and they respect her for it. There were many things that were not visible but needed to be redone where the original contractor messed up but it was important to Donna that the corrections be made. I am sure there must be limits but all of these corrections were accommodated without change orders. The project was completed on time and within budget. Oh, did I mention Donna is also a real estate agent? When the project was completed, she listed the house at the highest price in the history of the neighborhood. I was hoping but not expecting it so it was a pleasant surprise when she brought me a full price contract within a few days! I HIGHLY recommend AND contractors, LLC and Donna! If you want your project done right, on time and within budget, you owe it to yourself to at least have her look at your project!"
Jonathan K on December 2024
Complete kitchen and bath remodeling including plumbing and electrical. Highly experienced and certified technicians with over 20 years of field knowledge and empierce that will respect your home and delivery an amazing experience that you will remember and share with others for years to come. We can customize any project and work with any budget. You will admire and adore your new space.
"After I terminated the lease of my tenant in early 2023, I decided to do the whole house remodel before selling it because of the age of the house and TLC it needed. The original contractor I hired ended up going to jail for child abuse charges and I had to find another contractor to finish the job. I got a number of quotes and decided to go with Donna from AND Contractors, LLC. It is very difficult to come into a project that somebody else started and the quotes reflected that but Donna’s estimate was fair and I felt comfortable in my interactions with Donna. Don't let the fact that a woman runs the business fool you - she is a real tough but fair boss. She was on the job site every day! She treats her people right but also lets them know when they mess up and they respect her for it. There were many things that were not visible but needed to be redone where the original contractor messed up but it was important to Donna that the corrections be made. I am sure there must be limits but all of these corrections were accommodated without change orders. The project was completed on time and within budget. Oh, did I mention Donna is also a real estate agent? When the project was completed, she listed the house at the highest price in the history of the neighborhood. I was hoping but not expecting it so it was a pleasant surprise when she brought me a full price contract within a few days! I HIGHLY recommend AND contractors, LLC and Donna! If you want your project done right, on time and within budget, you owe it to yourself to at least have her look at your project!"
Jonathan K on December 2024
The cost to finish a basement is $18,400 for the average homeowner. However, this cost could be as little as $2,800 or as much as $34,500, depending on the basement size and the materials needed. If your basement is already outfitted with electrical and plumbing, expect the cost to fall on the lower end.
For example, the drywall cost for this project averages around $1,750, but other features, like hiring a plumber, cost between $45 and $200 per hour.
The cost to remodel a basement is between $12,100 and $33,400 for the average homeowner. The price you pay can be as little as $3,500 or as much as $50,200, depending on the size and condition of your basement and the type of remodel you're doing.
If you're doing a simple project like adding a home office to your basement, you can expect to pay anywhere from $500 to $3,000. However, if you're adding a bathroom, which is an extensive project, you can expect to pay between $6,600 to $16,500.
Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it’s more protective, waterproofing typically costs more than damp proofing.
Although homeowners often use the terms basement remodeling and basement finishing interchangeably, they are quite different terms.
Finishing a basement is the process of taking a basement space that is not habitable and adding elements to make it usable. This includes adding plumbing, flooring, and insulation.
Remodeling a basement means taking an already existing finished basement and changing it, often by adding or removing walls, adding plumbing, or changing the existing flooring.
The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in.
If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.