Jeff is the best! He came on a Sunday to fix a leak that was causing a great deal of damage in my basement. I appreciate him and his work ethic more than I can say.

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TRUSTED BY THORNTON, CO HOMEOWNERS
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Average homeowner rating340
Verified basement leak repair services reviews
Verified Reviews for Basement Leak Repair pros in Thornton, CO
Last update on October 13, 2025
- Brian M.
- Kathy F.
Billy came to my house to help with a sewer line leak I had in the basement. This was a rather urgent matter, as my house is on the market and I did not want those in showings to see this. I also wanted an inspection to go smoothly. Billy went above and beyond. He gave other helpful advice on...
- Jim P.
The homeowner needs to understand that the basement floor protrusions (i.e. piping, supports, drains, etc.) and expansion joins may leak ambient air thru the slab, thus your new system will withdraw air thru these protrusions. With that being said air will travel with the least resistance and...
- Kathleen B.
CCS was very professional, courteous and friendly from estimate to remediation (mold removal) to repar, cleanup and follow through. Basement area repaired looks better than new. Special kudos to David Houghton for his work and follow-up as the project's field supervisor.
Find Basement leak repair pros in Thornton

Thrasher Foundation Repair - Denver
Thrasher Foundation Repair - Denver
With 50 years of experience in the basement and foundation repair industry, Thrasher Foundation Repair offers trusted services to homeowners around Denver, CO. Recognized for our exceptional commitment to leadership, character, and organizational ethics, we are proud recipients of the 2024 International BBB Torch Award for Ethics. From cracked concrete repair to basement waterproofing and crawl space encapsulation, we provide state-of-the-art solutions to keep your foundation safe, dry, and healthy. Here at Thrasher, we guarantee precise repair and genuine care. We proudly offer our services in Fort Collins, Colorado Springs, Aurora, and surrounding areas. Contact us today at 303-586-5570 for a free inspection.
With 50 years of experience in the basement and foundation repair industry, Thrasher Foundation Repair offers trusted services to homeowners around Denver, CO. Recognized for our exceptional commitment to leadership, character, and organizational ethics, we are proud recipients of the 2024 International BBB Torch Award for Ethics. From cracked concrete repair to basement waterproofing and crawl space encapsulation, we provide state-of-the-art solutions to keep your foundation safe, dry, and healthy. Here at Thrasher, we guarantee precise repair and genuine care. We proudly offer our services in Fort Collins, Colorado Springs, Aurora, and surrounding areas. Contact us today at 303-586-5570 for a free inspection.

Mannis Home Enhancement LLC
Mannis Home Enhancement LLC
Since 1927, Mannis has provided exceptional, 5-star-rated service by prioritizing customer satisfaction, delivering high-quality work, maintaining clear communication and addressing any concerns promptly. We understand how important your home is to you and the effort it took to make it yours. With Mannis, you can trust us to care for your home as if it were our own. That’s why we’ve been the go-to company for all home services for over 97 years!
"Mannis Home Enhancement recently remodeled my bathroom, and the result is beautiful! From the start, Tyler and his team made the whole process seamless. They helped me with the design and offered recommendations that were not only high quality but also stunning—honestly, their suggestions turned out even better than I expected. We felt so comfortable and confident in their expertise from day one, and it was clear they truly care about delivering a great result. We feel lucky to have found Mannis and will definitely be calling them again for future projects!"
James K on October 2024
Since 1927, Mannis has provided exceptional, 5-star-rated service by prioritizing customer satisfaction, delivering high-quality work, maintaining clear communication and addressing any concerns promptly. We understand how important your home is to you and the effort it took to make it yours. With Mannis, you can trust us to care for your home as if it were our own. That’s why we’ve been the go-to company for all home services for over 97 years!
"Mannis Home Enhancement recently remodeled my bathroom, and the result is beautiful! From the start, Tyler and his team made the whole process seamless. They helped me with the design and offered recommendations that were not only high quality but also stunning—honestly, their suggestions turned out even better than I expected. We felt so comfortable and confident in their expertise from day one, and it was clear they truly care about delivering a great result. We feel lucky to have found Mannis and will definitely be calling them again for future projects!"
James K on October 2024

Groundworks
Groundworks
Established in 1999, Groundworks Colorado stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of Colorado, we bring our local expertise closer to you. Groundworks proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate!
"No they were not what I expected they were supposed to level out my driveway and sidewalk and they didn't do a very good job and they were supposed to come out and fix what they f. ed up and I have not seen them yet I spent 4,000.00$ and I will have to replace everything."
Jeffery P on May 2025
Established in 1999, Groundworks Colorado stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of Colorado, we bring our local expertise closer to you. Groundworks proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At Groundworks, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate!
"No they were not what I expected they were supposed to level out my driveway and sidewalk and they didn't do a very good job and they were supposed to come out and fix what they f. ed up and I have not seen them yet I spent 4,000.00$ and I will have to replace everything."
Jeffery P on May 2025

Stellar Kitchen and Bath Remodeling
Stellar Kitchen and Bath Remodeling
Stellar Remodeling, Inc - Your trusted choice for all your remodeling needs! We are a family-owned business in Denver, offering top-notch expertise in bathroom and kitchen remodeling, as well as basement finishing. Contact us today for a stellar transformation!
"When looking to make some improvements in the kitchen and possibly one bath, I got estimates from 3 companies. Stellar was by far the best; Jack and Andrew had lots of ideas but they understood and foresaw the ramifications of each decision, what additional problems each change might create, and how to fix each issue. They were great to work with. Blake, the person who did most of the work, is highly skilled in every area, and works to the highest standards."
Robin S on July 2025
Stellar Remodeling, Inc - Your trusted choice for all your remodeling needs! We are a family-owned business in Denver, offering top-notch expertise in bathroom and kitchen remodeling, as well as basement finishing. Contact us today for a stellar transformation!
"When looking to make some improvements in the kitchen and possibly one bath, I got estimates from 3 companies. Stellar was by far the best; Jack and Andrew had lots of ideas but they understood and foresaw the ramifications of each decision, what additional problems each change might create, and how to fix each issue. They were great to work with. Blake, the person who did most of the work, is highly skilled in every area, and works to the highest standards."
Robin S on July 2025
Wes-Tec Builders Company, Inc.
Wes-Tec Builders Company, Inc.
Family owned and operated for over 25 years. A+ rating at the BBB. All major credit cards accepted. Financing available.
"Steve and his team did a great job. He worked with our home insurance and got the water damaged floor replaced quickly and it looks great!"
Kelsey A on August 2024
Family owned and operated for over 25 years. A+ rating at the BBB. All major credit cards accepted. Financing available.
"Steve and his team did a great job. He worked with our home insurance and got the water damaged floor replaced quickly and it looks great!"
Kelsey A on August 2024

Denver Dream Builders
Denver Dream Builders
Denver Dream Builders (25 years of experience) specializes in high-quality remodeling and building services for Denver homeowners. They offer free consultations, personalized designs, and flexible payment plans to ensure a smooth and successful project from start to finish. Their commitment to customer satisfaction makes them a top choice for residential construction and remodeling.
"It went great. They installed recessed lighting in my kitchen and it looks great. They cleaned up their mess and were friendly and professional. And, they charged a reasonable price."
David B on April 2025
Denver Dream Builders (25 years of experience) specializes in high-quality remodeling and building services for Denver homeowners. They offer free consultations, personalized designs, and flexible payment plans to ensure a smooth and successful project from start to finish. Their commitment to customer satisfaction makes them a top choice for residential construction and remodeling.
"It went great. They installed recessed lighting in my kitchen and it looks great. They cleaned up their mess and were friendly and professional. And, they charged a reasonable price."
David B on April 2025

Paramount Remodeling Company Inc
Paramount Remodeling Company Inc
Paramount remodeling is a family owned & operated construction company. With over 50 years of hands on experience, we pride ourselves in providing a excellent service at an affordable price. 90% of our business is referral based and repeat customers. We work hard to earn your business and want to be your next reference. We offer a progressive billing system. This helps you avoid large deposit and allows you pay as worked is completed. Our attention to detail and can-do attitude allows us to make your vision a reality. We are licensed and insured for over 35 years. Call now for your free consultation and estimate.
"I hired Paramount back in 2020 for work on the first floor and appreciated their work so much that I brought them back for the basement (fix/ update after mold repair) and second floor (bathroom and stairs update, new carpet). Like the first time, I really appreciated Ryan's suggestions on style and options, and the various contractors were professional and very kind about working around me and the cats. Ryan was ultimately more critical than me about details and appreciate that desire to do things right and as clean as possible. Would use again!... although that would require a new house at this point. 😁"
Misty H on October 2024
Paramount remodeling is a family owned & operated construction company. With over 50 years of hands on experience, we pride ourselves in providing a excellent service at an affordable price. 90% of our business is referral based and repeat customers. We work hard to earn your business and want to be your next reference. We offer a progressive billing system. This helps you avoid large deposit and allows you pay as worked is completed. Our attention to detail and can-do attitude allows us to make your vision a reality. We are licensed and insured for over 35 years. Call now for your free consultation and estimate.
"I hired Paramount back in 2020 for work on the first floor and appreciated their work so much that I brought them back for the basement (fix/ update after mold repair) and second floor (bathroom and stairs update, new carpet). Like the first time, I really appreciated Ryan's suggestions on style and options, and the various contractors were professional and very kind about working around me and the cats. Ryan was ultimately more critical than me about details and appreciate that desire to do things right and as clean as possible. Would use again!... although that would require a new house at this point. 😁"
Misty H on October 2024

Mile High Remodeling
Mile High Remodeling
Our team has experience of over 20+ years combined. Creating memorable worthy spaces for you and your family. We specialize in all interior work such as Laminate floors, full kitchen renovations, bathroom remodels, and custom designs. We walk you through the steps as we finalize your project.
"Very pleased with Mile High Remodeling. They did a great job remodeling my main bathroom which included removal of the old jacuzzi tub, replacing it with a freestanding tub, new tile, lighting, paint and stain, as well as plumbing and electrical work. Luis and Lucero and their team were very professional, personable and committed to excellent customer service. Their daily communication about the project, suggestions and help with design were all much appreciated. The cost was reasonable and fair. I highly recommend Mile High Remodeling."
Susan J on April 2025
Our team has experience of over 20+ years combined. Creating memorable worthy spaces for you and your family. We specialize in all interior work such as Laminate floors, full kitchen renovations, bathroom remodels, and custom designs. We walk you through the steps as we finalize your project.
"Very pleased with Mile High Remodeling. They did a great job remodeling my main bathroom which included removal of the old jacuzzi tub, replacing it with a freestanding tub, new tile, lighting, paint and stain, as well as plumbing and electrical work. Luis and Lucero and their team were very professional, personable and committed to excellent customer service. Their daily communication about the project, suggestions and help with design were all much appreciated. The cost was reasonable and fair. I highly recommend Mile High Remodeling."
Susan J on April 2025
Z-Man Inc.
Z-Man Inc.
Small licensed general and electrical contractor. All residential and small commercial electrical; service upgrades, lighting, power, plugs switches and fixtures. Residential basement, kitchen, and bath remodel.
"Efficient and great advice!"
Deep B on October 2025
Small licensed general and electrical contractor. All residential and small commercial electrical; service upgrades, lighting, power, plugs switches and fixtures. Residential basement, kitchen, and bath remodel.
"Efficient and great advice!"
Deep B on October 2025

3R Services
3R Services
A residential Contractor. 5 employees. We generally only use sub contractors for electric and plumbing. Licensed in most of the Denver Metro Cities. No fee for trip charges, Free estimates on most projects, including free basement design. See our reviews on Google and call us! Our mission is to provide our clients with the advantages of working with the owners of a smaller company while achieving the results that you would expect from a large company. We want you to love where you live. With 3R Services your job will be managed by owners of the company, not sub-contractors. This allows us to provide a more consistent high quality experience, and build ongoing client relationships. Much of our work comes from referrals by happy customers * You will work directly with an owner as your project manager * We have 9 years of experience in Denver, Colorado * We are licensed and insured * We are a Better Business Bureau member * Competitive pricing * No hidden costs * Guarantees on all workmanship and materials
"3R Services was amazing to work with. Jim and Eric made sure everything was done right at each step and quickly addressed any questions or changes that we had. Our basement finish was done within our schedule and the work done is very high quality. We would definitely recommend them to others and plan to use them again for any future projects."
Winston K on November 2024
A residential Contractor. 5 employees. We generally only use sub contractors for electric and plumbing. Licensed in most of the Denver Metro Cities. No fee for trip charges, Free estimates on most projects, including free basement design. See our reviews on Google and call us! Our mission is to provide our clients with the advantages of working with the owners of a smaller company while achieving the results that you would expect from a large company. We want you to love where you live. With 3R Services your job will be managed by owners of the company, not sub-contractors. This allows us to provide a more consistent high quality experience, and build ongoing client relationships. Much of our work comes from referrals by happy customers * You will work directly with an owner as your project manager * We have 9 years of experience in Denver, Colorado * We are licensed and insured * We are a Better Business Bureau member * Competitive pricing * No hidden costs * Guarantees on all workmanship and materials
"3R Services was amazing to work with. Jim and Eric made sure everything was done right at each step and quickly addressed any questions or changes that we had. Our basement finish was done within our schedule and the work done is very high quality. We would definitely recommend them to others and plan to use them again for any future projects."
Winston K on November 2024
FAQs for basement leak repair projects in Thornton, CO
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 Thornton, CO 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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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"