I had a positive experience working with this company. Today, I contacted them regarding a potential leak and mold issue. Will promptly visited our home to assess the situation. After thorough inspection of the basement, he found no alarming issues, only some moisture. He generously spent...

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Average homeowner rating261
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Basement Leak Repair reviews from real Angi homeowners in Downingtown, PA
Last update on October 14, 2025
- Vamsi C.
- John L.
Laundry room & kitchen window are not level. Bay window is scratched, trim is not finished nor is it level. Patio door leaks. Basement door leaks. Patio screen damaged.
- Eric D.
After purchasing a house in 2014, I discovered drainage issues and water in the basement not known by the prior owner. John came out to inspect the property. He offered a number of great suggestions on the spot and more in his report. Three contractors later and I had a new sump pump, a drain...
- Cortney T.
Went great !! Charles showed up prompt and the same day I called. Very honest man, and didn't sell me things that I didn't need. Professional and polite, walked me through the entire basement and educated me on basement leaks and remedies
- Patrick C.
After my kitchen ceiling collapsed due to a plumbing leak, Interiors Top to Bottom repaired the drywall ceiling and repainted. Even knowing where the damage was, I could not see the repair. The job was perfect. I very enthusiastically recommend their services.
- Larry M.
Since the repair was completed 5 months ago we have encountered some very heavy rain storms with no signs of leaks. Mike used dropcloths and ensured everything was cleaned up after his work each day. Very professional work!
- David B.
I had an old trench drain system that was clogged; basement was flooding every time it rained. I dealt with Phil Jr. who was friendly and professional. Phil and the crew showed up right on time, they performed the work as promised quickly and efficiently. When it turned out I needed some...
- Shawn B.
I had left a message the day that I had the leak. Dennis returned the call that evening and came out the next afternoon to investigate the problem. He discovered there was a tear in the boot of the machine. He then promptly returned the next day with the boot and made the repair. He was...
Find Basement leak repair pros in Downingtown

AJ Waterproofing
AJ Waterproofing
We are a family run waterproofing specialist company, owned and operated, since 1976 by A.J. DiElsi. We have one crew, one truck and start and finish one job at a time. We are completely insured with general liability and workman's compensation. There is no charge for estimates and we take no deposits on any job. You pay us upon completion of the job. We do not have salesmen. A.J. is the gentleman that comes out to deliver each estimate and he is on each job. We excel in impeccable workmanship, and the jobs are always left cleaner than when we arrived. We give a lifetime guarantee on our French Drains and it is transferable to each new homeowner. Please feel free to call with any questions 610-527-9444 or 610-409-0888, Additional phones: 610-960-1589. Or feel free to email us at : [email protected], you can also check us out on YouTube and our website, ajwaterproofing.com.
"QUICK, FRIENDLY, and CHEAP!! First, AJ called me within 30 seconds of me texting him asking for an estimate. I sent him a photo of our water leak issue and he immediately responded. He actually explained that we could probably handle the repair ourselves if we were up for it, instead of paying him or someone else. He then walked us through every step in detail and made sure we were comfortable with the directions. So in the end, it cost us $0 in labor and only a small amount for materials, and really demonstrated AJ's integrity and generosity!"
Jarcy M on September 2023
We are a family run waterproofing specialist company, owned and operated, since 1976 by A.J. DiElsi. We have one crew, one truck and start and finish one job at a time. We are completely insured with general liability and workman's compensation. There is no charge for estimates and we take no deposits on any job. You pay us upon completion of the job. We do not have salesmen. A.J. is the gentleman that comes out to deliver each estimate and he is on each job. We excel in impeccable workmanship, and the jobs are always left cleaner than when we arrived. We give a lifetime guarantee on our French Drains and it is transferable to each new homeowner. Please feel free to call with any questions 610-527-9444 or 610-409-0888, Additional phones: 610-960-1589. Or feel free to email us at : [email protected], you can also check us out on YouTube and our website, ajwaterproofing.com.
"QUICK, FRIENDLY, and CHEAP!! First, AJ called me within 30 seconds of me texting him asking for an estimate. I sent him a photo of our water leak issue and he immediately responded. He actually explained that we could probably handle the repair ourselves if we were up for it, instead of paying him or someone else. He then walked us through every step in detail and made sure we were comfortable with the directions. So in the end, it cost us $0 in labor and only a small amount for materials, and really demonstrated AJ's integrity and generosity!"
Jarcy M on September 2023
Basic Basement Co
Basic Basement Co
With over 40 years combined experience, we provide complete Basement remodeling and finishing services with Free estimates and no-nonsense pricing. We will give you the Basement you've always wanted by transforming your previously unfinished Basement into a usable and comfortable living area you can be proud of. We are known for constant communication and on-site project management.
"We used The Basic Basement Co. to get our basement finished. They exceeded our expectations, getting the job done quickly. They sent expert workers and worked around our vacation. We were told what they needed to do, they came and did it. Payment was in 4 installments."
Michele G on September 2025
With over 40 years combined experience, we provide complete Basement remodeling and finishing services with Free estimates and no-nonsense pricing. We will give you the Basement you've always wanted by transforming your previously unfinished Basement into a usable and comfortable living area you can be proud of. We are known for constant communication and on-site project management.
"We used The Basic Basement Co. to get our basement finished. They exceeded our expectations, getting the job done quickly. They sent expert workers and worked around our vacation. We were told what they needed to do, they came and did it. Payment was in 4 installments."
Michele G on September 2025
Bruttaniti Architecture
Bruttaniti Architecture
Architectural Services in business for 34 years providing architectural designs in Residential (new construction, rehabs, renovations, additions), Commercial buildings, Libraries, Hotels, and Restaurants. We are licensed architects in Pennsylvania, New Jersey, and Delaware where over 90% of our work are residential projects. We are full-service architects from initial design concepts to construction drawings for building permits (from start to finish). We also provide land use and zoning for our clients. Being in the architecture business for the past 34 years we have the experience and knowledge of building design to offer our clients quality services for their projects.
"We were in the process of renovating our apartment and needed to apply for permits from the government, which required an architect-signed design drawing. Anthony came highly recommended. He took the time to visit our apartment and carefully understand the challenges we faced in obtaining the permits. After thoroughly reviewing the space and listening to our renovation ideas, he assured us that the project would be straightforward for him and that he could provide an architectural drawing that would not only meet our needs but also ensure we could pass inspection without any issues. Despite the project being relatively small, Anthony was more than willing to take it on and offered a very reasonable fee for his services. We truly appreciate the time, care, and professionalism he brought to the table. We would highly recommend Anthony to anyone looking for an architect who is knowledgeable, approachable, and dedicated to delivering great work."
Yujen J on March 2025
Architectural Services in business for 34 years providing architectural designs in Residential (new construction, rehabs, renovations, additions), Commercial buildings, Libraries, Hotels, and Restaurants. We are licensed architects in Pennsylvania, New Jersey, and Delaware where over 90% of our work are residential projects. We are full-service architects from initial design concepts to construction drawings for building permits (from start to finish). We also provide land use and zoning for our clients. Being in the architecture business for the past 34 years we have the experience and knowledge of building design to offer our clients quality services for their projects.
"We were in the process of renovating our apartment and needed to apply for permits from the government, which required an architect-signed design drawing. Anthony came highly recommended. He took the time to visit our apartment and carefully understand the challenges we faced in obtaining the permits. After thoroughly reviewing the space and listening to our renovation ideas, he assured us that the project would be straightforward for him and that he could provide an architectural drawing that would not only meet our needs but also ensure we could pass inspection without any issues. Despite the project being relatively small, Anthony was more than willing to take it on and offered a very reasonable fee for his services. We truly appreciate the time, care, and professionalism he brought to the table. We would highly recommend Anthony to anyone looking for an architect who is knowledgeable, approachable, and dedicated to delivering great work."
Yujen J on March 2025
GJP DEVELOPERS INC
GJP DEVELOPERS INC
New residential, and commercial construction. Home remodeling. No job is too big or small. Please call our office today to schedule your FREE estimate at 610-659-3750 We have been in business since 1989. We would provide any previous work we have done over the years at customers request. GJP INC. provides top notch building and remodeling services at an affordable price. We get the job done fast and provide only the best craftsmanship in the business. References are available upon request.
"We had an excellent experience working with GJP Developers and are happy to recommend them. Gary gave us great advice about what could be done within our budget and offered suggestions that truly added to the quality of the outcome for the space we were working with. His staff have a superior work ethic and Gary checked in on site often to be sure the project was moving forward and consistently kept us up to date on the progress of the renovation. When we asked for some changes to the original plan he was courteous and patient in providing us with what we needed. We were really surprised at how quickly the renovation progressed and how the quality of work was maintained along the way. We highly recommend GJP Developers and would have no hesitation hiring them again for other home remodeling we are considering."
Christine L on November 2024
New residential, and commercial construction. Home remodeling. No job is too big or small. Please call our office today to schedule your FREE estimate at 610-659-3750 We have been in business since 1989. We would provide any previous work we have done over the years at customers request. GJP INC. provides top notch building and remodeling services at an affordable price. We get the job done fast and provide only the best craftsmanship in the business. References are available upon request.
"We had an excellent experience working with GJP Developers and are happy to recommend them. Gary gave us great advice about what could be done within our budget and offered suggestions that truly added to the quality of the outcome for the space we were working with. His staff have a superior work ethic and Gary checked in on site often to be sure the project was moving forward and consistently kept us up to date on the progress of the renovation. When we asked for some changes to the original plan he was courteous and patient in providing us with what we needed. We were really surprised at how quickly the renovation progressed and how the quality of work was maintained along the way. We highly recommend GJP Developers and would have no hesitation hiring them again for other home remodeling we are considering."
Christine L on November 2024

TOTAL HOME SOLUTION
TOTAL HOME SOLUTION
For award-winning home remodeling services, contact Total Home Solution (THS). Use of the design & build process means that, from concept through completion, we provide guidance through the design process, advise on products within your style and budget, and oversee every phase of the project. Our work ethic exceeds the highest standards; we provide unparalleled craftsmanship and professionalism. Our skilled remodeling team has been beautifying The Main Line and the surrounding areas for more than 25 years. We maintain commitment to quality in order to meet our goal of exceeding your expectations. Put your home remodeling project in the hands of one of the area’s most respected companies. Angie’s List “A” rating
"Bad Experience. Bait and Switched us. Told us the no more than cost of our removal verbally and then said he needed $4k to do the design with us and get final firm contract after that. I told him I was skeptical giving him $4k and then have him come back with contract stating it would cost a big percent more. He assured me “he is not that kind of guy”. Then after the design and a smaller scope he wanted to charge us 30% more. Took our money and we now have to start over with a new contractor."
Daniel D on June 2024
For award-winning home remodeling services, contact Total Home Solution (THS). Use of the design & build process means that, from concept through completion, we provide guidance through the design process, advise on products within your style and budget, and oversee every phase of the project. Our work ethic exceeds the highest standards; we provide unparalleled craftsmanship and professionalism. Our skilled remodeling team has been beautifying The Main Line and the surrounding areas for more than 25 years. We maintain commitment to quality in order to meet our goal of exceeding your expectations. Put your home remodeling project in the hands of one of the area’s most respected companies. Angie’s List “A” rating
"Bad Experience. Bait and Switched us. Told us the no more than cost of our removal verbally and then said he needed $4k to do the design with us and get final firm contract after that. I told him I was skeptical giving him $4k and then have him come back with contract stating it would cost a big percent more. He assured me “he is not that kind of guy”. Then after the design and a smaller scope he wanted to charge us 30% more. Took our money and we now have to start over with a new contractor."
Daniel D on June 2024

Conestoga RenoBuild Group
Conestoga RenoBuild Group
A full-service, family owned and operated custom home renovation company dedicated to craftsmanship, customer satisfaction and integrity. We pride ourselves on excellence and quality. We specialize in home additions, kitchens, bathrooms, in-law suites and decks. "Don't move, .......Improve!"
"The job was well done, on time, at a good price. Very open communication so we were never left wondering what was happening. Couldn't have been happier."
Nadiah A on January 2024
A full-service, family owned and operated custom home renovation company dedicated to craftsmanship, customer satisfaction and integrity. We pride ourselves on excellence and quality. We specialize in home additions, kitchens, bathrooms, in-law suites and decks. "Don't move, .......Improve!"
"The job was well done, on time, at a good price. Very open communication so we were never left wondering what was happening. Couldn't have been happier."
Nadiah A on January 2024

Nelson General Contractor LLC
Nelson General Contractor LLC
**Now Offers Financing** At Nelson General Contracting it is our mission to elevate architectural landscape through unparalleled craftsmanship. We are committed to delivering superior construction solutions, blending timeless design with cutting-edge efficiency. Our mission is to exceed client expectations, leaving a lasting legacy of quality, integrity, and excellence in every project we undertake. Contact us to discuss your next project today!
"I cannot say enough about Sam and his team. They made our dream house a reality. They truly care about and take pride in the work they do. Communication was excellent from everyone on the team. Our project was done on time and on budget. We are so thankful to have found Nelson General Contractor and would highly recommend"
Crystal M on November 2024
**Now Offers Financing** At Nelson General Contracting it is our mission to elevate architectural landscape through unparalleled craftsmanship. We are committed to delivering superior construction solutions, blending timeless design with cutting-edge efficiency. Our mission is to exceed client expectations, leaving a lasting legacy of quality, integrity, and excellence in every project we undertake. Contact us to discuss your next project today!
"I cannot say enough about Sam and his team. They made our dream house a reality. They truly care about and take pride in the work they do. Communication was excellent from everyone on the team. Our project was done on time and on budget. We are so thankful to have found Nelson General Contractor and would highly recommend"
Crystal M on November 2024

Waterproofing One
Waterproofing One
Family owned. Over thirty years in business. Free estimates, all work guaranteed. Waterproofing One, now proudly serving central and south New Jersey, provides basement waterproofing, foundation repair, and mold remediation to the Greater Philadelphia, PA, area, including Montgomery, Chester and Delaware counties. If you are concerned about maintaining the value of your property, then saving your foundation from the results of water damage is a must. Basement leaks can lead to a cracked foundation and the growth of unhealthy mold. Not only do we guarantee to have low prices, but all of our work is warranted. We are licensed, insured and certified for your protection, and accredited by the BBB. Call Waterproofing One today to schedule your free estimate! We are currently licensed for the Delaware and New Jersey area, please see below licensing information. Delaware Licensing Number- 17-92051-13-000 New Jersey Licensing Number-13vh09291700
"From the first contact they were very responsive, friendly, and professional. They came right in on the estimate price and got the job done quickly with top quality work. I will definitely hire them again in the future."
Michael M on March 2021
Family owned. Over thirty years in business. Free estimates, all work guaranteed. Waterproofing One, now proudly serving central and south New Jersey, provides basement waterproofing, foundation repair, and mold remediation to the Greater Philadelphia, PA, area, including Montgomery, Chester and Delaware counties. If you are concerned about maintaining the value of your property, then saving your foundation from the results of water damage is a must. Basement leaks can lead to a cracked foundation and the growth of unhealthy mold. Not only do we guarantee to have low prices, but all of our work is warranted. We are licensed, insured and certified for your protection, and accredited by the BBB. Call Waterproofing One today to schedule your free estimate! We are currently licensed for the Delaware and New Jersey area, please see below licensing information. Delaware Licensing Number- 17-92051-13-000 New Jersey Licensing Number-13vh09291700
"From the first contact they were very responsive, friendly, and professional. They came right in on the estimate price and got the job done quickly with top quality work. I will definitely hire them again in the future."
Michael M on March 2021

knd home improvement
knd home improvement
hello, my name is Ken owner of knd Home Improvement. we offer an extensive array of services. we are a complete home remodel. I pride my business on being versatile & dependable & trustworthy. knd has been in business for 12yrs. I'm a small owner-operated company.
"We had a great experience with Ken. We had two closets just off the kitchen converted, one into a coffee station and the other as a "business" area, as well as adding cabinetry in our laundry room and replaced wire shelving in the pantry with wood shelves. Ken was great with communicating and making sure that we were happy with the work as it progressed as well as being very punctual."
Jim W on March 2025
hello, my name is Ken owner of knd Home Improvement. we offer an extensive array of services. we are a complete home remodel. I pride my business on being versatile & dependable & trustworthy. knd has been in business for 12yrs. I'm a small owner-operated company.
"We had a great experience with Ken. We had two closets just off the kitchen converted, one into a coffee station and the other as a "business" area, as well as adding cabinetry in our laundry room and replaced wire shelving in the pantry with wood shelves. Ken was great with communicating and making sure that we were happy with the work as it progressed as well as being very punctual."
Jim W on March 2025

Volkert Remodeling Inc
Volkert Remodeling Inc
Volkert Remodeling Inc. is the one stop resource for Home Remodeling, specializing in Kitchens and Bathrooms. Super Service Award winners for 2016, 2015 and 2014. We make sure that the job is completed from beginning to end and that our customers are happy with the quality and craftsmanship throughout. Please call us today to schedule your appointment - (610) 960-1097
"From start to end the kitchen renovation process went extremely well. Don made sure to include me through it all and made sure I was pleased with each step. Whenever a decision is needed, Don explains the options and impact of each. He and his employee, also named Don, are prompt every day and attentive to details. They do the work right with high quality workmanship. I am extremely grateful to have had this experience that has resulted in beautiful kitchen. Without hesitation, I plan to contact Don Volkert for any future projects I need done."
Tom W on December 2024
Volkert Remodeling Inc. is the one stop resource for Home Remodeling, specializing in Kitchens and Bathrooms. Super Service Award winners for 2016, 2015 and 2014. We make sure that the job is completed from beginning to end and that our customers are happy with the quality and craftsmanship throughout. Please call us today to schedule your appointment - (610) 960-1097
"From start to end the kitchen renovation process went extremely well. Don made sure to include me through it all and made sure I was pleased with each step. Whenever a decision is needed, Don explains the options and impact of each. He and his employee, also named Don, are prompt every day and attentive to details. They do the work right with high quality workmanship. I am extremely grateful to have had this experience that has resulted in beautiful kitchen. Without hesitation, I plan to contact Don Volkert for any future projects I need done."
Tom W on December 2024
FAQs for basement leak repair projects in Downingtown, PA
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.
The Downingtown, PA homeowners’ guide to basement leak repair services
From average costs to expert advice, get all the answers you need to get your job done.
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Sump pump replacement costs depend on the type of unit you have and the cost of labor, which varies by region. Read on to find out more about what to expect.
Your sump pump is designed to remove water and prevent flooding. Find out which common causes may be responsible if your sump pump is constantly running.
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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"