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Got a wet basement? Musty odors? Protect your home with our proven solutions & lifetime warranty.

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zip code: 20149

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3 Pros Basement Systems

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Our Services

  • Concealed drainage system
  • Powerful, reliable sump pumps
  • Battery backup systems
  • Patented waterproofing products
  • Energy-efficient dehumidifiers
  • Industry-leading warranties

Basement Waterproofing Companies In New Hampshire

157 Batchelder Road
Seabrook, NH 03874
NE Massachusetts: including Boston, Salem and Newburyport.
SE New Hampshire: including Hampton, Portsmouth, and Concord.
View company profile for reviews, awards, before & after photos, and more.
358 Gallison Hill Rd
Montpelier, VT 05602
Western and Northern New Hampshire: including Keene, Lebanon, and Pittsburg.
All of Vermont: including Bennington, Montpelier and Richford.
View company profile for reviews, awards, before & after photos, and more.
12 Homestead Dr
Wells, ME 04090
Southern and NE Maine: including Portland, Bar Harbor and Fort Fairfield.
SE New Hampshire: including Dover, Farmington and Ossipee.
View company profile for reviews, awards, before & after photos, and more.

Each of the New Hampshire companies listed here is an authorized Basement Systems dealer offering expert basement waterproofing services including drainage and sump pump installation. In each company profile, you can read reviews and check out the contractor’s history, service area, ratings, and more.

Choosing a Trusted Waterproofing Company for Your New Hampshire Basement

As a homeowner, one of the last things you want to deal with is water damage, especially from a flooded basement. Wet basement issues happen more often than you may think and can leave behind serious property damage. If you are suffering from constant worry about the health and safety of your basement, it’s time for a change. Don’t wait until your basement becomes a breeding ground for mold, pests, and other hazardous conditions. Contact your local New Hampshire basement waterproofer today to ensure the well-being of your family and your home are protected.

Look for expertise, training, and experience.

By choosing a local Basement Systems dealer, you can assure you’re getting dedicated, trusted basement waterproofing service. Each contractor listed here is a trained expert in the diagnosis of sub-grade moisture problems as well as the design and installation of proper drainage, moisture and humidity control, and basement materials. All Basement Systems contractors are licensed and certified to fix your damp basement. With this kind of expert assistance, you can say good-bye to your basement water issues!

Demand high-quality basement waterproofing products.

Basement Systems has been setting the industry standard for dry basements since opening in 1987. Your local New Hampshire Basement Systems dealer has exclusive access to 27 patented products that have helped homeowners over the past 30 years keep their basements dry. Such solutions include our WaterGuard basement drainage system,  UltraSump industrial-strength sump pump, and our SaniDry Sedona Basement Dehumidifier.

Other basement waterproofing products include basement wall and floor treatments, window wells, and basement window replacements. Browse the full line of basement waterproofing products.

Why Do New Hampshire Basements & Crawl Spaces Get Wet?

Flooded basement: Being in New England, New Hampshire experiences the heavy spring rains, the thunderstorm-filled summer months, and the snowy winter season. All of the following can easily cause flood issues for your home's basement. Before waiting for the next big storm to come and go, make sure your basement is prepared to take it on. 

Other wet basement signs: There are many possible sources for pooling water, damp basement walls or flooring, and high humidity. These include: rusty basement windows, poor grading around the foundation, leaks through cracks in the foundation, saturated soils, simple plumbing failures, and poorly functioning drainage or sump pump systems. A basement already musty and damp is ill-prepared for the next bad rainstorm! Basement waterproofing can address the underlying issues, prevent future water damage and improve the indoor air quality.

Basement Waterproofing & Crawl Space Repair

Waterproof your wet basement today! Waterproofing experts in the Basement Systems network have helped homeowners across the country for decades, by identifying the source of leaks, flooding, groundwater seepage, and musty odors. With a range of waterproofing and moisture control solutions available through Basement Systems, your local dealer will install the right solution for your basement or crawl space.

Wet Basement Solutions:
  • Basement Waterproofing
  • Crawl Space Encapsulation
  • Leak Basement Window Repairs
  • Exclusive Drainage & Moisture-Control Products
  • Industrial-Strength Sump Pumps 
  • Energy-Efficient Self-Draining Dehumidifier    
Dry Basement and Crawl Space Benefits:
  • Usable Basement or Crawl Space
  • Healthier Indoor Air
  • Mold, Dust, and Pest Reduction
  • Lifetime Transferable Warranty
  • Home Value Protected
  • Peace of Mind When It Rains!

Next Steps to a Safe, Dry Basement in Your New Hampshire Home

Basement Systems products address every key basement or crawl space problem, including moisture intrusion, flooding, leaky windows, structural rot, and excessive humidity. The best basement waterproofers for your New Hampshire home are those who can diagnose the source of the problem and have the training, expertise and experience to design and install an effective system that keeps your basement dry.

1) Read Reviews & Check Out Past Work

Spend your time reading through the reviews of the basement waterproofing companies listed here. Check out their profiles that highlight their work (before and after photos), awards, and experience.

2) Get inspections and cost quotes

Call or fill out the Free Estimate form to set up an inspection of your basement. When you choose Basement Systems authorized contractor, you’ll get a free book on how basements are constructed and why they get wet, a custom design solution, and written estimate at no charge.

3) Choose Your Contractor & Enjoy the Result!

It’s important you choose a basement waterproofer based on the proposed solution, quality of materials, reputation of the contractor, and the price. Remember you only want to waterproof your basement once! After the work is completed, enjoy your dry basement for storage, finishing, laundry, and entertainment.

New Hampshire's Dependable Waterproofing Companies

  • "phenomenal." Read Full Testimonial

    Mark N. of Marlborough, MA

    Customer Testimonial

              Dan Doyon's professionalism and presence. His energy was perfect with my wife and I, not a pushy saleman. He worked with us during the project and the final product came out phenomenal.
    Mark N.
    Marlborough, MA
  • "Great workers!" Read Full Testimonial

    Cyndi M. of Pepperell, MA

    Customer Testimonial

              Steve Galvin installed my new pump and battery backup system. I couldn't be happier with his professionalism, timeliness and workmanship in this latest installation. The reason why I hired your company to come back. Perhaps in a few years we'll finish the basement as well. Thanks again guys! Great job.
    Cyndi M.
    Pepperell, MA
  • "Very pleased with his work." Read Full Testimonial

    Mary L. of Lincoln, MA

    Customer Testimonial

              Mark did an excellent job of explaining everything and setting up an emergency appointment. Frank G. did a great job of finding the problem and replacing the necessary parts. He is extremely personable, knowledgeable, and even arrived earlier than first planned. Very pleased with his work. It was nice to hear that he works for a great company.
    Mary L.
    Lincoln, MA
  • "your product was the best" Read Full Testimonial

    Helen B. of Westford, MA

    Customer Testimonial

              Tom was wonderful know's his product well. Roger is crew manager and know what he is doing. Cody and Sosa great young men and hard workers. place was spotless after closing up crawl space was my way of thinking. your product was the best
    Helen B.
    Westford, MA

Let your local New Hampshire Basement Systems dealer solve your basement or crawl space water issues! Whether you're in Manchester, Nashua, Concord or Derry Village, NH, our contractors are happy to help transform your wet, leaky or humid basement into a usable, dry, healthier space today!

Improve your home starting with a free basement inspection and estimate!

Don’t entrust the health of your home to an amateur. When your basement is wet and moldy, ask for the system developed by world’s leading basement waterproofing company. As a Basement Systems company, we offer an ensemble of patented products that aren't available to other contractors. We can provide a permanent solution to your basement waterproofing problem and will back it up with a lifetime, transferable warranty. Whether you simply want to use your basement for storage and a laundry, or are planning to convert it to living space, the first priority is to make sure it’s dry.

Customer Reviews
  • By Judith H.
    Virginia Beach, VA
    "Professional and timely response to questions. Work completed on schedule."

    Customer Review

    By Judith H.
    Virginia Beach, VA

    Professional and timely response to questions. Work completed on schedule.
  • By Brenda T.
    Plainville, CT
    "Sorry it took me so long to respond to you but I have been sick since I..."

    Customer Review

    By Brenda T.
    Plainville, CT

    Sorry it took me so long to respond to you but I have been sick since I got home to CT on 10/31.
  • By James M.
    Wilmington, CT
    "Great technician. Quick, clean and great communication."

    Customer Review

    By James M.
    Wilmington, CT

    Great technician. Quick, clean and great communication.
  • By Mary S.
    Shaftsbury, VT
    "I would like to let you know if the system works before finalizing my..."

    Customer Review

    By Mary S.
    Shaftsbury, VT

    I would like to let you know if the system works before finalizing my review, but you can always ask me after the thaw!God Bless!
  • By George C.
    Wilmington, VT
    "need to know what to do about the exit pipe cover in the yard. it was off..."

    Customer Review

    By George C.
    Wilmington, VT

    need to know what to do about the exit pipe cover in the yard. it was off yesterday and the open pipe exposed. don't think it will last through the first snow storm. Rest of the basement looks good
  • By Lisa P.
    Wilmington, VT
    "I was referred by a friend. I have to admit that "All Things Basementy"..."

    Customer Review

    By Lisa P.
    Wilmington, VT

    I was referred by a friend. I have to admit that "All Things Basementy" sealed the deal!

    Customer Review


  • By Pauline V.
    Keene, NH
    "The guys that came out to do the job were awesome! They did a fantastic..."

    Customer Review

    By Pauline V.
    Keene, NH

    The guys that came out to do the job were awesome! They did a fantastic job and I no longer have to worry about a lake in my crawl space! I was also pleasantly surprised with how affordable this was. Thank you so much. I will definitely recommend Northern Basement Systems for anyone needing this type of service.
  • By Edward K.
    Chester,, VT
    "I thought the work to install the system was outstanding. The only thing I..."

    Customer Review

    By Edward K.
    Chester,, VT

    I thought the work to install the system was outstanding. The only thing I think could be improved is the finish work. rough cement work and an old piece of wood to support the sump pump drain pipe.
Click to see why people hire us

Recent job requests for basement waterproofing in NH:

Project Location: Troy, NH 03465

Comment: Dirt floor basement and crawl spaces. due to recent heavy rains we had some shallow pools of water in our basement from rise in groundwater level. water since has been reabsorbed into ground. concerned about future events.

Project Location: Rindge, NH 03461

Comment: Water pooled in a corner of our cellar after a hard rain

Project Location: Harrisville, NH 03450

Comment: Hello, My New England house is approximately 120 years old with a dirt-floor basement. I am requesting an assessment for a solution to flooding, moisture, and pests. Thank you!

Project Location: Temple, NH 03084

Comment: Water in basement from water table rising during extreme rain events (about once per year).

Project Location: Mont Vernon, NH 03057

Comment: Sump pump needs to be looked at- we're being told it's not working

Project Location: Claremont, NH 03743

Comment: We have a wet basement and are looking for solutions

Project Location: Litchfield, NH 03052

Comment: Water pooling in the northeast part of my basement. Happens after heavy rain.

Project Location: Newbury, NH 03255

Comment: Looking for estimated cost for basement panels. Approximately 750 square feet of coverage.

Project Location: Henniker, NH 03242

Comment: We have a basement made from cinder blocks and water leaks through the walls and floor. We're hoping to dry it out and make it descent.

Project Location: Sunapee, NH 03782

Comment: I have a SaniDry XP system (about 5 or 6 years old) It's not drawing water even tho it is running. Would you be able to look at it? I would also like to talk to you about doing ducts so I can get it out of the main living area (It's a finished basement). Thanks and I look forward to hearing from you.

Project Location: Hooksett, NH 03106

Comment: We just purchased a home and would like to finish the basement, however there are several cracks in the foundation and it appears that at some point there was water infiltration (currently dry but there is a humidity issue). We would like estimates for crack repair, dehumidification system, waterproofing, and finishing (may not all happen at once).

Project Location: Hanover, NH 03755

Comment: We would like an estimate on a sump pump for one window well that fills up with heavy rains.

Project Location: Hampstead, NH 03841

Comment: Musty smell in basement - travels upstairs too.

Project Location: Hooksett, Nh 03106, NH 03106

Comment: Have a crack in a concrete inside wall, 30" tall. We have used you as a vendor for many years.

Project Location: Sandown, NH 03873

Comment: Looking to replace 2 basement windows with the Everlast inserts

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zip code: 20149

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