Find a waterproofing company in Washington, DC

Find basement waterproofing companies in Washington, DC

Find basement waterproofing companies in Washington, DC

Confirm your location to see the best basement waterproofing companies near you.
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Find basement waterproofing companies in Washington, DC

Confirm your location to see the best basement waterproofing companies near you.
Zip code

Top 10 basement waterproofing companies in Washington, DC

Homeowners agree: these Washington basement waterproofing companies are highly rated for knowledge, experience, communication, and more.
Alwayswaterproofing & Concrete Services

Alwayswaterproofing & Concrete Services

New on HomeGuide
1 hire on HomeGuide
26+ years in business
Serves Washington, DC
20 years in business concrete fencing egress windows waterproofing license bonded insured. Veteran owned
Affordable Basement Waterproofing Inc.

Affordable Basement Waterproofing Inc.

5.0Exceptional(18)
25+ years in business
Serves Washington, DC
Lauren R. says, " In a panic from discovering my basement was flooded i called up all my friends who referred me to this wonderful company! From the customer service and initial appointment plan to the crew that came out to my home it was all top notch! Jai and Kelly really explained and helped me through the whole process and the crew that came to my home to fix my basement was nothing short of professional and friendly and so respectful. Thank you again!!! My basement is good as new and we couldn’t be happier!" Read more
RAM Builders

RAM Builders

5.0(4)
35+ years in business
Serves Washington, DC
Kendra W. says, "I hired RAM Builders to paint the exterior of my home, our garage floor, and our concrete basement floor, as well as replace all my window shutters. I was satisfied with their work and their etiquette. Will be hiring again!" Read more
KINZO, Inc.

KINZO, Inc.

New on HomeGuide
16+ years in business
Serves Washington, DC
KINZO, Inc.does professional quality work for our customers. In addition, we are courteous and we respect our customers. We arrive at work on time and leave upon completion of work. We cleans all areas of work upon completion of the days job. Lastly, we provide guarantees for the work we do. I personal satisfaction. Get doing the work I do and at the same time I do the best I can to satisfy the customers need for a satisfactory job well done.
Gutierrez Construction, Inc

Gutierrez Construction, Inc

New on HomeGuide
7+ years in business
Serves Washington, DC
We like to see all our customer satisfied with our services we offer. We go over the project as many times posible to accomplish our customers goals. We offer free estimates to all our customers. Customer service is our #1 priority so we can answer all your questions or concerns you may have.
Gomez Construction

Gomez Construction

New on HomeGuide
27+ years in business
Serves Washington, DC
Gomez Construction, founded in 2005, is a highly skilled General Contracting business based in Beltsville, MD. This expert team caters to the Greater Washington D.C. area, specializing in fine home remodeling including kitchens, bathrooms, basements, additions, decks, and custom cabinetry. Gomez Construction also provides high-quality roofing, electrical, plumbing, and HVAC services. With a keen eye for detail, competitive prices, excellent customer service, and over 15 years of experience, Gomez Construction ensures every project meets client expectations and is completed on time.
All Eco Design Center

All Eco Design Center

New on HomeGuide
36+ years in business
Serves Washington, DC
All Eco Design Center, founded in 1990, is a fully committed, eco-friendly home remodeling business based in Wheaton, Maryland. As a full-service licensed contractor, the team specializes in sustainable kitchen and bath remodeling, providing healthier options to improve indoor air quality using US made, recycled, and sustainable materials. With over 25 years of experience, they ensure high quality workmanship and customer satisfaction while supporting a healthier lifestyle and environment. They welcome clients to their showroom to explore the possibilities of creating a green space they will love for years to come.
A & J Home Remodeling LLC

A & J Home Remodeling LLC

New on HomeGuide
10+ years in business
Serves Washington, DC
Founded in 2016, A & J Home Remodeling LLC is a family-owned business based in Sterling, VA, and serves surrounding areas. As a full-service home improvement contractor, they specialize in small to full-sized home repairs and renovations, including kitchen, bathroom, exterior and interior work. They are committed to excellence, uphold a standard of integrity, and prioritize their customers' interests. With a professional team that takes pride in their work, they ensure every project reflects their high-quality service and expertise.
Design By Lightfoot, LLC

Design By Lightfoot, LLC

New on HomeGuide
41+ years in business
Serves Washington, DC
Design by Lightfoot, LLC, founded in 1985, is a trusted name in handyman services, serving the Washington metropolitan area, including Montgomery Village and Gaithersburg, Maryland. They specialize in remodeling kitchens, building entertainment centers, installing new doors, and handling small cabinetry jobs. With over 30 years of experience, they offer high-quality service and craftsmanship to ensure your home fits your unique needs. Their reputation is backed by their portfolio of projects, demonstrating their commitment to exceptional home improvements.
Two Poor Teachers

Two Poor Teachers

New on HomeGuide
27+ years in business
Serves Washington, DC
Founded in 1999, Two Poor Teachers is a highly regarded remodeling contractor based in Fairfax, Virginia, and serving surrounding areas. Specializing in kitchen and bathroom renovations, they offer a comprehensive range of services including design, installation, and handyman services. They also provide plumbing, electrical, and HVAC services, ensuring a complete solution for your home renovation needs. With an impressive track record of over 5,000 satisfied clients and an A+ BBB rating, Two Poor Teachers is committed to delivering high quality, cost-effective, and timely services with integrity.

Your Home Waterproofing questions, answered

Answers to commonly asked questions from the experts on HomeGuide.

How much does basement waterproofing cost near me?

Basement waterproofing costs $6 to $15 per square foot, depending on the basement size, home's condition, and waterproofing methods. Higher fees apply for structural foundation repairs. Exterior waterproofing methods are always more effective because they prevent all water from entering a basement.

  • Interior basement waterproofing costs $4,500 to $10,000 on average for retrofitting a drain system under the basement floor. This solution is ideal when the home's location doesn't allow enough space for adding more exterior drainage.
  • Exterior basement waterproofing costs $10,000 to $15,000, including excavation and installation of French drains underground near the home's footings.

Basement waterproofing involves applying sealants, installing drains, and setting up barriers to prevent water intrusion. Experts also repair existing basement damage and may adjust the yard's gradient to redirect rainwater away from the home.

How do I know if my basement needs waterproofing?

The most obvious way you'll know that your basement needs waterproofing is if water leaks into the basement or the walls get damp when it rains. A bowing wall or warped doors that get moldy are other common indications.

Additional signals you need waterproofing are:

  • Cracks in the basement walls or floor
  • Chalky residue on walls
  • Water stains
  • Musty basement odors

Is basement waterproofing worth it?

Many benefits of waterproofing your basement that are worth the cost include:

  • Preventing structural failure of your basement walls
  • Eliminating mold growth
  • Converting your basement into a dry and livable space
  • Raising the value of your home before selling it

What is the cheapest way to waterproof a basement?

Waterproofing a basement is cheapest for more temporary solutions like painting the floors and walls with high-quality sealants. If you have bowing walls or extra-large cracks in the walls, then seek a professional's advice immediately since the wall could collapse.

Some inexpensive DIY ways to start waterproofing also include:

  • Using bags of fill dirt to make slopes that send rainwater away from the home.
  • Installing the longest downspouts you can to protect your foundation.
  • Cleaning and maintaining your gutters so that they won't overflow.
  • Adding splash guards to the gutter system.

What is the best basement waterproofing method?

Out of all the waterproofing methods, the best ones are those that address water drainage over your entire property.

These projects can include many steps according to your conditions:

  1. Grading and re-sloping your yard can be an essential first step to stop hydrostatic pressure from building up outside your foundation walls, which weakens them.
  2. Any structural issues in the foundation require immediate attention to reinforce the building. This step can involve adding new mortar to brick or block foundations, or even installing a new beam to stop wall failure.
  3. Installing or improving the existing drainage system is essential, especially if you live in areas prone to flooding.
  4. Contractors may also add a drip edge trench of gravel around the home's perimeter to move rainwater away faster.
  5. Applying sealants to the basement interior is typically the final step.

How long does it take to waterproof a basement?

A basement waterproofing company typically takes 1 to 3 days to finish an area up to 300 square feet. Allow up to 7 days when more excavation work is necessary. The amount of time it takes varies according to property conditions, extent of the damages, and the method.

How long does basement waterproofing last?

A complete exterior basement waterproofing lasts more than 25 years for adding a new French drain around the perimeter, regrading the yard, and applying a water barrier sealant to the foundation. Most interior basement waterproofing lasts 10 to 25+ years depending on the installation quality.

Applying a sealant to the interior alone is a temporary solution that doesn't stop water pressure from building outside the basement walls.

Does basement waterproofing increase my home value?

You can increase your home's value by waterproofing the basement in many places, and the total value added varies according to the criteria of the property appraiser.

If a buyer finds you have water leaks in the basement during the home inspection, then they often refuse to buy the home when expensive repairs are likely.

Does homeowners insurance cover basement waterproofing?

Many homeowners insurance policies can cover general repairs after a pipe bursts or after a flood, if you have flood insurance in the plan. However, insurance typically doesn't cover installation of a complete waterproofing system. Confirm the terms and conditions of your coverage by reading your policy.

Finding a basement waterproofing company near me

Before hiring a basement waterproofing company near you:

  • Request 3+ quotes from licensed, bonded, and insured companies to compare.
  • Check if they have credentials from the Basement Health Association, the EPA, or the National Association of the Remodeling Industry.
  • Verify if they're part of any local building or plumbing associations.
  • Read their past reviews on HomeGuide and Google.
  • Confirm if the contractor has 5+ years of experience.
  • Get an itemized estimate and contract copy before the job starts.
  • Avoid hiring the cheapest contractors who might have low-quality service.
  • Never pay in full until the job is complete.
  • Be cautious about hiring a company insisting their bid is valid for a limited time.

What questions to ask before hiring a basement waterproofing contractor?

Ask these key questions to help you pick a good basement waterproofing company:

  • How long have you been in the basement waterproofing business?
  • What's your base service fee for a basement inspection?
  • Can you provide references from past clients with similar projects?
  • How is water getting into my basement?
  • Is this type of water leak common in my neighborhood, and if so, why?
  • What experience do you have with waterproofing basements similar to mine?
  • Are there structural problems that could cause wall failure?
  • Can you recommend an engineer if my basement walls are unstable?
  • Which waterproofing methods do you recommend for my basement and why?
  • Does your estimate cover materials, labor, delivery fees, and cleanup?
  • Will I need to pay extra to repaint my walls or floor afterward?
  • How long will this waterproofing job take?
  • Should I be home during the work?
  • Will you give me a written estimate, contract, and timeline for the project?
  • What do you do if unexpected problems arise?
  • Can you offer me a guarantee on your work, and if so, how long is it for?
  • How should I prepare for your crew?

Reviews for Washington basement waterproofing companies

Recent success stories from people in the Washington area.
Stevew S.
I had underground water coming into my basement from an unknown source. The men dug a trench along the back wall and put in a French drain that went to a sump pump that they installed. They cleaned all of the work area and dried all of the water on the floor. My home was well protected from all work generated dirt and refuse. I am very impressed and I give them my highest recommendation. I would definitely hire this company again. The sales rep was knowledgeable and explained what needed to be done leaving no questions unanswered.
Affordable Basement Waterproofing Inc.
Steven W.
I had RAM Builders come to my property and repair several sections of torn shingles on my roof, as well as a new roof cap installed. The garage was in need of a new shingle roof and they installed that as well. I also had them install gutter guards for me, and they did their work right and I was very happy with it.
RAM Builders
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