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  • 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

  • "Not a drop of water since the job was completed." Read Full Testimonial

    Paul of , 0

    Customer Testimonial

              I have lived with water in my basement for years. After the house was built we had problems with water and the builder came back and put some drains in, still water. Years later we hired a compnay that guaranteed they could solve the problem and guaranteed it for life. Still we had problems and when we called the company they were out of business. So you can see why we were skeptical to hire another company. I was sick and tired of going to the basement 3 or 4 times a day to pump the water out. I had seen the TC Hafford trucks around and seen the ads on TV. I decided to call you and at least get the free estimate. After peter spent time going over what your system could do and how it was installed, I decided to have it done, but was skeptical. But not anymore. Not one drop of water since the job was completed. Mike and his helper did a great job with the installation. Mike told me what he was going to be doing and how everything would work. Great clean-up. Enjoyed having them in my home. Thank you TC Hafford for making my basement water free.
    , 0
  • "It was the right way to correct our wet basement problems." Read Full Testimonial

    Alice of Barrington, NH

    Customer Testimonial

              It was the right way to correct our wet basement problems. For the first time in 46 years we have a dry basement. Let it snow & rain & go down our drain!
    Barrington, NH
  • "Completely satisfied with the whole experience!" Read Full Testimonial

    Edward C. of Arundel, ME

    Customer Testimonial

              Completely satisfied with the whole experience! You treated us as a valued customer, not just a means to make money we felt like friends not just customers. Thank You so very much!
    Edward C.
    Arundel, ME
  • "The company went out of the way to solve a problem of access to our crawl space, even purchasing a new..." Read Full Testimonial

    Christine of Bedford, MA

    Customer Testimonial

              The company went out of the way to solve a problem of access to our crawl space, even purchasing a new masonry saw at considerable expense to the company. We were very pleased with the' can do' attitude.
    Bedford, 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 Christine Q.
    Newport, ME
    "Of course, my superior ratings of your company are hinging on whether or..."

    Customer Review

    By Christine Q.
    Newport, ME

    Of course, my superior ratings of your company are hinging on whether or not my basement stays dry when the snow melts this spring. I really hope that it does, because my experience with your company up to this point has been very positive.
  • By Stefanie P.
    Salisbury, MA
    "I'm hoping to be able to get the finance to get this job done, if I am..."

    Customer Review

    By Stefanie P.
    Salisbury, MA

    I'm hoping to be able to get the finance to get this job done, if I am unable for whatever reason, it would be the only reason why I would not have this company do my work.
  • By Alfredo G.
    Revere, MA
    "Very helpful and I am satisfied with the overall work."

    Customer Review

    By Alfredo G.
    Revere, MA

    Very helpful and I am satisfied with the overall work.
  • By Al F.
    Saint Albans, VT
    "From estimate thru project completion, service, quality of workmanship and..."

    Customer Review

    By Al F.
    Saint Albans, VT

    From estimate thru project completion, service, quality of workmanship and products used were of the highest level!
    05446, VT
    "The area was extremely clean upon completion"

    Customer Review

    05446, VT

    The area was extremely clean upon completion
  • 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 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 Nancy H.
    Bomoseen, VT
    "This was a very good company to work with. I worked directly with Matt..."

    Customer Review

    By Nancy H.
    Bomoseen, VT

    This was a very good company to work with. I worked directly with Matt Clark and he was very responsive and accommodating. The only service I had was encapsulation of a basement that has a dirt floor and "knee walls" in a seasonal residence. I needed to reduce a very bad humidity problem that developed. The crew did a very good job of leveling the dirt and removing large stones prior to installing the mat and liner. I highly recommend the mat, as it provides an additional layer of protection to support the liner. It has been one week since the installation. Unfortunately, while the musty smell is gone, the humidity problem is still an issue because the surface of the liner is wet from condensation (no pipes are leaking). I believe the purpose of the liner is to reduce, not completely eliminate, the temperature difference that leads to the humidity. So I will use a dehumidifier for awhile and see if that eliminates the condensation problem. If it does, it will leave me wondering whether I spent a lot of money to encapsulate the basement when all I needed was to run a dehumidifier! The basement walls have some foam insulation that runs the perimeter at the top of the walls, but it may turn out that I need to add more insulation. Time will tell - one step at a time!
  • By Ornan A.
    Vergennes, VT
    "You guys were quick to respond, free to survey the situation, quick to..."

    Customer Review

    By Ornan A.
    Vergennes, VT

    You guys were quick to respond, free to survey the situation, quick to quote and solved all of our problems, which turned a leaky, collapsing basement into a space we could remodel into another living space (bathroom, living room w/fireplace, laundry, closets and a music studio). Every time I hear the sump pumps kick in I get a warm and fuzzy feeling. {I recommended you to a friend but he couldnt afford the work at this time. Maybe in the future}. I will be calling for an annual check up soon.
Click to see why people hire us

Recent job requests for basement waterproofing in NH:

Project Location: Partridgeberry Ln, Swanzey, NH 03446

Comment: Basement leaks from time to time and is damp

Project Location: Foisy Hill Road, Claremont, NH 03743

Comment: Water gets in, potential for mold growth, and unable to use the space the way we want to.

Project Location: Highland Haven Rd., Washington, NH 03280

Comment: I'm getting water in my basement and would like to schedule an appointment.

Project Location: Clark CT, Wilton, NH 03086

Comment: Standing water in basement high moisture and humidity

Project Location: Harwood Rd, Mont Vernon, NH 03057

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

Project Location: Falconer Ave, Milford, NH 03055

Comment: Two in tact steel frame hopper windows embedded in concrete and one opening that previously had a steel frame hopper window in it that was removed. Replacement of the window that is now just an opening is the priority but the other two will be considered for the same time.

Project Location: Watchtower Road, Contoocook, NH 03229

Comment: We have a unfinished section of our basement we use as storage and have noticed during heavy rains we have lots of water coming in through the concrete, specifically the far corner of the space. It seems to be coming in where the concrete wall meets the ledge to the floor. That section of the house is built on a rock ledge due to this the concrete looks like it was not pour evenly...just dumped there.

Project Location: South Road, Contoocook, NH 03229

Comment: My wife and I are purchasing an old home and are considering a whole basement dehumidifying system.

Project Location: Route 302, Lisbon, NH 03585

Comment: Looking to purchase a home that has flagged in inspection for slight water in the basement corner. Rest of the basement is finished, but house is on a hill so that may contribute. I am looking for estimates to see what an appropriate fix would cost me, etc.

Project Location: CRICKET HILL WAY, Franklin, NH 03235

Comment: Would like to remove odor from basement

Project Location: Farmington Dr, Hudson, NH 03051


Project Location: Corning Road, Litchfield, NH 03052

Comment: Hello, we have a musty basement that floods with heavy rain and we get occasional puddles other times.

Project Location: Pasture Drive, Hudson, NH 03051

Comment: I have old vinyl flooring in my basement currently with area rugs. I plan to put pergo over the vinyl. In the meantime, it's very moist down here...the floor is wet to touch. I'm interested in a solution long term.

Project Location: Independence Drive, Pelham, NH 03076

Search Request: basement finishing services

Comment: We have a finished basement already. Need the flooring replaced. Flooring needs to be pet friendly.

Project Location: Clay St, 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.

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