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Find Foundation, basement or crawlspace waterproofing / encapsulation pros in Ashburn

Avatar for Foley Custom Homes

Foley Custom Homes

4.63(
72
)
Approved Pro

Foley Custom Homes

4.63(
72
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
26 years of experience

Foley Custom Homes is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. This has allowed us to expand with our sister company, Fairfax Contractors. Fairfax Contractors is a company that is a fully staffed design and build company that focuses on the Outdoor Living for our clients.

"They did a great job and were creative with their solutions"

Kathleen K on August 2022

Foley Custom Homes is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. This has allowed us to expand with our sister company, Fairfax Contractors. Fairfax Contractors is a company that is a fully staffed design and build company that focuses on the Outdoor Living for our clients.

"They did a great job and were creative with their solutions"

Kathleen K on August 2022


Avatar for AA Action Waterproofing Inc

AA Action Waterproofing Inc

4.83(
278
)
Approved Pro

AA Action Waterproofing Inc

4.83(
278
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
39 years of experience

We strive to exceed your expectations in waterproofing, mold remediation and foundation repair. We take pride in our work, that’s why we don’t employ subcontractors. We understand there are a lot of choices out there when choosing a certified installer – we hope you choose us! Protect your home and health from mold and mildew invaders. In our 28 years of experience, we have never encountered a wet basement, crawlspace encapsulation or mold removal condition that we couldn’t handle. Give us a call today for a free, no obligation inspection and professional basement waterproofing system tailored for your home or commercial project. AA Action Waterproofing is licensed, insured and bonded with a A+ Rating with the BBB. Please call us and we’ll happily supply you with references.

"They did a great job. We got 4 quotes; they were neither the cheapest nor the most expensive. Everything was done on schedule, and they did not try to talk us into work we didn't need. Very professional, and they did a good clean-up job. We were initially annoyed that they had not cleanly cut through our tile (which we did not think to request), but we would have ended up pulling up and replacing the cut pieces anyway, so it really doesn't matter. Water problems in our basement have stopped! We are very satisfied."

Michelle R on March 2021

We strive to exceed your expectations in waterproofing, mold remediation and foundation repair. We take pride in our work, that’s why we don’t employ subcontractors. We understand there are a lot of choices out there when choosing a certified installer – we hope you choose us! Protect your home and health from mold and mildew invaders. In our 28 years of experience, we have never encountered a wet basement, crawlspace encapsulation or mold removal condition that we couldn’t handle. Give us a call today for a free, no obligation inspection and professional basement waterproofing system tailored for your home or commercial project. AA Action Waterproofing is licensed, insured and bonded with a A+ Rating with the BBB. Please call us and we’ll happily supply you with references.

"They did a great job. We got 4 quotes; they were neither the cheapest nor the most expensive. Everything was done on schedule, and they did not try to talk us into work we didn't need. Very professional, and they did a good clean-up job. We were initially annoyed that they had not cleanly cut through our tile (which we did not think to request), but we would have ended up pulling up and replacing the cut pieces anyway, so it really doesn't matter. Water problems in our basement have stopped! We are very satisfied."

Michelle R on March 2021


Avatar for JES Foundation Repair

JES Foundation Repair

4.51(
707
)
Approved Pro

JES Foundation Repair

4.51(
707
)
Approved Pro
Super Service Award
Customers say: Super punctual
202 local quotes requested
33 years of experience

JES Foundation Repair (JES), A Groundworks Company, specializes in helping homeowners with their foundation repair, basement waterproofing, crawl space encapsulation, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across Virginia and Maryland. With fully trained technicians, industry-leading products, and nationally backed warranties, JES is here to restore your foundation or crawlspace.

"Jeswork was really great. The construction engineer took photos of my crawlspace and explained in detail their recommendations and the cost and financing. The work team was excellent and explained what they did each day and showed pictures. They found termites and got in contact with a pest contractor before the encapsulation when my termite contractor failed to come and treat the termites. "

Brenda C on February 2026

JES Foundation Repair (JES), A Groundworks Company, specializes in helping homeowners with their foundation repair, basement waterproofing, crawl space encapsulation, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across Virginia and Maryland. With fully trained technicians, industry-leading products, and nationally backed warranties, JES is here to restore your foundation or crawlspace.

"Jeswork was really great. The construction engineer took photos of my crawlspace and explained in detail their recommendations and the cost and financing. The work team was excellent and explained what they did each day and showed pictures. They found termites and got in contact with a pest contractor before the encapsulation when my termite contractor failed to come and treat the termites. "

Brenda C on February 2026


Avatar for HomeGuard Foam & Foundation

HomeGuard Foam & Foundation

4.73(
23
)
Approved Pro

HomeGuard Foam & Foundation

4.73(
23
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
19 local quotes requested

Committed to creating energy-efficient, durable homes. We take pride in doing things the right way, specializing in spray foam insulation, crawl space solutions, insulation, foundation repair, and waterproofing. Our expert team protects homes from water damage, foundation issues, and energy loss, ensuring lasting comfort and structural integrity for homeowners.

"Installer put hole through ceiling and they wonâ t accept responsibility for it. They said they didnâ t do it. I was sitting in room when it happened. Not trustworthy. ð"

Virginia L on November 2023

Committed to creating energy-efficient, durable homes. We take pride in doing things the right way, specializing in spray foam insulation, crawl space solutions, insulation, foundation repair, and waterproofing. Our expert team protects homes from water damage, foundation issues, and energy loss, ensuring lasting comfort and structural integrity for homeowners.

"Installer put hole through ceiling and they wonâ t accept responsibility for it. They said they didnâ t do it. I was sitting in room when it happened. Not trustworthy. ð"

Virginia L on November 2023


Avatar for Lux Foundation Solution

Lux Foundation Solution

4.52(
27
)
Approved Pro

Lux Foundation Solution

4.52(
27
)
Approved Pro
Customers say: Super punctual
Free onsite estimate
Emergency services offered

LUX Foundation Solutions is a fully licensed and insured foundation repair, waterproofing, crawlspace repair and masonry service contractor. Providing services to a large part of central and Northern Virginia. With Combine Experience of over 25 years!

"I had Lux come out to do foundation work on our home, as well as exterior waterproofing. It was a large job, and as a first-time homeowner, I didn’t know what to expect. Miguel and his team were efficient and did a great job. They communicated very well, which I really appreciated, and the job was completed in about a week. They ran into a small snag during the work, but were able to locate the issue and fix it quickly. They were very flexible and understanding, even after the job when I had a few follow-up questions. I would definitely use them again!"

Albert J on January 2026

LUX Foundation Solutions is a fully licensed and insured foundation repair, waterproofing, crawlspace repair and masonry service contractor. Providing services to a large part of central and Northern Virginia. With Combine Experience of over 25 years!

"I had Lux come out to do foundation work on our home, as well as exterior waterproofing. It was a large job, and as a first-time homeowner, I didn’t know what to expect. Miguel and his team were efficient and did a great job. They communicated very well, which I really appreciated, and the job was completed in about a week. They ran into a small snag during the work, but were able to locate the issue and fix it quickly. They were very flexible and understanding, even after the job when I had a few follow-up questions. I would definitely use them again!"

Albert J on January 2026


Avatar for Mj Paving & Masonry

Mj Paving & Masonry

5.00(
6
)
Approved Pro

Mj Paving & Masonry

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Free onsite estimate

MJ paving and masonry takes its time with customers walking them through the project step-by-step . With no miscommunication licensed & insured reliable family run business. Feel free to check with dpor License Number 2705186120 We are here to cover all your property needs and desires. Free estimates no charge. We install new driveways, back patios, foundation, work, concrete work, retaining walls, walkways, etc. Get it done once, get it done right

"If you need any driveway, concrete, or masonry work, MJ Paving and Masonry should be your go-to people! They did an amazing job on my new driveway, at a great price, and Miley was even willing to fix some loose bricks from my front path as well as fill in some missing concrete at no extra cost. The communication was top notch and I felt like I was genuinely cared for as a customer, especially at the intial consultation. You won't regret it!"

Jack Z on September 2025

MJ paving and masonry takes its time with customers walking them through the project step-by-step . With no miscommunication licensed & insured reliable family run business. Feel free to check with dpor License Number 2705186120 We are here to cover all your property needs and desires. Free estimates no charge. We install new driveways, back patios, foundation, work, concrete work, retaining walls, walkways, etc. Get it done once, get it done right

"If you need any driveway, concrete, or masonry work, MJ Paving and Masonry should be your go-to people! They did an amazing job on my new driveway, at a great price, and Miley was even willing to fix some loose bricks from my front path as well as fill in some missing concrete at no extra cost. The communication was top notch and I felt like I was genuinely cared for as a customer, especially at the intial consultation. You won't regret it!"

Jack Z on September 2025


Avatar for NV Waterproofing & Foundation Repair

NV Waterproofing & Foundation Repair

4.55(
172
)
Approved Pro

NV Waterproofing & Foundation Repair

4.55(
172
)
Approved Pro
Customers say: Quality work
34 local quotes requested
40 years of experience

Established in 1986, NV Waterproofing provides expert solutions for below-grade moisture control, prevention, concrete repair, and foundation repair in the greater Washington, D.C. area. Call us at (703)690-3889 to schedule your appointment. Our certified applicators use the industry's most effective and eco-friendly waterproofing, drainage, concrete, and foundation repair products, offering a one-stop solution for your needs. Trusted by hundreds of homeowners, contractors, and builders, our reputation is built on word-of-mouth referrals. We pride ourselves on excellent customer service and stand behind our work. As members of Supportworks and Contractor Nation, our goal is to create satisfied customers. Service areas include D.C., Virginia (Fairfax, Loudoun, Prince William, Fauquier, Arlington, Alexandria, Stafford, Spotsylvania), and Maryland (Montgomery, Frederick, Prince George, Howard, St. Mary’s).

"Mark and his crew were terrific. Professional all the way. Pleasure working with them. Will use them again."

Jack P on October 2025

Established in 1986, NV Waterproofing provides expert solutions for below-grade moisture control, prevention, concrete repair, and foundation repair in the greater Washington, D.C. area. Call us at (703)690-3889 to schedule your appointment. Our certified applicators use the industry's most effective and eco-friendly waterproofing, drainage, concrete, and foundation repair products, offering a one-stop solution for your needs. Trusted by hundreds of homeowners, contractors, and builders, our reputation is built on word-of-mouth referrals. We pride ourselves on excellent customer service and stand behind our work. As members of Supportworks and Contractor Nation, our goal is to create satisfied customers. Service areas include D.C., Virginia (Fairfax, Loudoun, Prince William, Fauquier, Arlington, Alexandria, Stafford, Spotsylvania), and Maryland (Montgomery, Frederick, Prince George, Howard, St. Mary’s).

"Mark and his crew were terrific. Professional all the way. Pleasure working with them. Will use them again."

Jack P on October 2025


Acculevel, Inc. - Virginia

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Acculevel, Inc. - Virginia

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
23 local quotes requested
30 years of experience

Acculevel is your foundation repair expert, serving Illinois, Indiana, Kentucky, Michigan, Missouri, Ohio, Iowa, Pennyslvania, Virginia & Wisconsin with over 20 years of experience. Our repairs come with a lifetime warranty. Acculevel begins by evaluating your entire foundation system, checking your property for the signs and causes of foundation failure. From foundation & crawlspace repair to waterproofing & encapsulation systems, Acculevel can help you protect your home-- the most valuable investment you'll ever make.

Acculevel is your foundation repair expert, serving Illinois, Indiana, Kentucky, Michigan, Missouri, Ohio, Iowa, Pennyslvania, Virginia & Wisconsin with over 20 years of experience. Our repairs come with a lifetime warranty. Acculevel begins by evaluating your entire foundation system, checking your property for the signs and causes of foundation failure. From foundation & crawlspace repair to waterproofing & encapsulation systems, Acculevel can help you protect your home-- the most valuable investment you'll ever make.


Arkco, LLC

4.55(
10
)
Approved Pro

Arkco, LLC

4.55(
10
)
Approved Pro
Customers say: Quick response
4 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular project or task. We look forward to earning your business!

"very good service and very neat work, I hope you can visit my website gendut188 for various experiences"

gendut 1 on August 2025

We pride our company on reliability, great communication, integrity and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular project or task. We look forward to earning your business!

"very good service and very neat work, I hope you can visit my website gendut188 for various experiences"

gendut 1 on August 2025


Avatar for Drainage and Erosion Solutions

Drainage and Erosion Solutions

4.58(
222
)
Approved Pro

Drainage and Erosion Solutions

4.58(
222
)
Approved Pro
Customers say: Super punctual
23 years of experience
Free onsite estimate

Drainage & Erosion Solutions (DES) is an award-winning design-build firm specializing in diagnosing and resolving drainage and erosion issues for residential and commercial properties. With both engineering and contracting divisions, we deliver professionally engineered solutions that are as functional as they are aesthetically pleasing. Our team is composed of dedicated, full-time professionals known for their technical expertise, attention to detail, and commitment to exceptional customer service. All consultations, assessments, and installations are performed by licensed experts—including soils engineers and landscape and drainage system designers—who bring decades of combined experience in design and construction. Clients trust DES for our reliability and results, leading to a strong referral-based business and consistently high rankings on contractor-rating platforms.

"I highly recommend DES! I arranged a consultation after a home inspection report indicated that there was moisture in our basement walls. I was worried that costly mitigation efforts would be required. A friend who had previously used DES for a basement water problem highly recommend them, telling us that they were an honest company that only does what is necessary to solve a problem. Happily, Mark Fine from DES inspected both our basement and our exterior grounds and reported that there was no indication of cracks in the foundation or water intrusion, and that no work needed to be done. It is so refreshing to have a company that doesn't try to sell expensive services when they are not necessary!"

Brian E on October 2025

Drainage & Erosion Solutions (DES) is an award-winning design-build firm specializing in diagnosing and resolving drainage and erosion issues for residential and commercial properties. With both engineering and contracting divisions, we deliver professionally engineered solutions that are as functional as they are aesthetically pleasing. Our team is composed of dedicated, full-time professionals known for their technical expertise, attention to detail, and commitment to exceptional customer service. All consultations, assessments, and installations are performed by licensed experts—including soils engineers and landscape and drainage system designers—who bring decades of combined experience in design and construction. Clients trust DES for our reliability and results, leading to a strong referral-based business and consistently high rankings on contractor-rating platforms.

"I highly recommend DES! I arranged a consultation after a home inspection report indicated that there was moisture in our basement walls. I was worried that costly mitigation efforts would be required. A friend who had previously used DES for a basement water problem highly recommend them, telling us that they were an honest company that only does what is necessary to solve a problem. Happily, Mark Fine from DES inspected both our basement and our exterior grounds and reported that there was no indication of cracks in the foundation or water intrusion, and that no work needed to be done. It is so refreshing to have a company that doesn't try to sell expensive services when they are not necessary!"

Brian E on October 2025

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FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in Ashburn, VA

The most affordable way to waterproof your basement is with interior methods like waterproof paint, costing between $1 and $8 per square foot, or silicate concrete sealers priced at $4 to $6 per square foot. However, these solutions are only suitable for certain issues. If your basement moisture is due to more serious problems like a cracked foundation, you'll need more extensive (and costly) repairs.

Absolutely! Waterproofing your basement is a smart investment that can increase your home's value. By keeping your basement dry and free of moisture problems, you protect your home's structural integrity and make it more appealing to potential buyers. Plus, taking proactive measures now can prevent costly water damage repairs down the line.

The time required to waterproof a basement depends on the selected method. Some approaches to interior waterproofing, like paint or sealant, can be completed within a day. Installing new drains or weeping tiles will need at least two to three days of labor. Any forms of exterior waterproofing that require you to excavate land will require an additional three days of work to prepare the ground.

Yes, basement waterproofing can significantly increase your home's value. A dry, leak-free basement is a strong selling point for potential buyers, enhancing your property's desirability and market price. Investing in professional waterproofing not only protects your home's structural integrity but also ensures a healthier living environment by preventing mold and mildew growth.

Waterproofing both the interior and exterior of your basement offers the best protection against moisture. Exterior waterproofing stops water from penetrating your foundation, while interior methods manage any moisture that does enter. If you must choose one, exterior waterproofing is generally more effective, as it prevents water from reaching your home's interior in the first place.

The Ashburn, VA homeowners’ guide to foundation, basement or crawlspace waterproofing / encapsulations

From average costs to expert advice, get all the answers you need to get your job done.