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Reviews From Portsmouth
Products & Services
Basement Repair Services & Products
WaterGuard Interior System
DryTrak Drainage Channel
TrenchDrain Drain Grate
IceGuard Discharge Line
FlexiSpan Wall Crack Repair
Polyurethane Crack Sealing
WellDuct Window Drainage
BrightWall Waterproof Panels
ThermalDry Wall Barrier
Basement to Beautiful Wall Insulation Panels
Drain Tile Installation
SuperSump Pump System
TripleSafe Pumping System
UltraSump Battery Back-Up
SaniDry Dehumidifier
Sump Pump Installation, Replacement & Repair
Bowing Wall Repair
Crawl Space Repair Services & Products
CleanSpace Encapsulation Vapor Barriers and Liners
Turtle Access Hatch
EverLast Crawl Space Doors
SaniDry CSB Dehumidifier
SmartDrain Water Drainage
SilverGlo Wall Insulation
TerraBlock Floor Insulation
SmartSump Sump Pump
Crawl-O-Sphere Crawl Space Fan
WallCap Block Wall Sealer
SmartVent Flood Vents
Company Awards
2018 Better Business Bureau's Torch Award
Northeast Basement Systems was the runner-up in the midsize category to win the Torch Award for Marketplace Ethics. "It is... [Read more]
Northeast Basement Systems Wins the 2016 Granite Mikes Merit Award
Thursday October 27, 2016 held the prestigious TV Awards. Northeast Basement Systems won their category for Most Creative Commercial for... [Read more]
Rookie of the Year Award
Owners, Ron and Kerri Canelli of Northeast Basement Systems, proudly displays their "Rookie of the Year Award" from Basement Systems,... [Read more]
More Awards

Expert Sump Pump Installation & Basement Waterproofing Contractor serving Portsmouth, NH

Happy Customers Surrounding Portsmouth, NH
Work Requests

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Northeast Basement Systems has been solving basement and crawl space issues for homeowners in Portsmouth. We are the exclusive dealer in Portsmouth for the Basement Systems Network. This means we have received countless installation training as well as access to patented products.

The products we use come with warranties and we stand behind our work. We provide comprehensive inspections, written estimates, and fast installation. We make sure the job is done right and that it lasts. Call us today.

Basement Waterproofing & Crawl Space Repair

We provide permanent solutions for your wet basement or damp, moldy crawl spaces. We inspect your home, show you what we found and then layout how we can fix it. After you agree with the plan we get to work and finish quickly. Don't deal with mold, smells, rot or water damage anymore in your Portsmouth home. We also provide sump pump installation, repair, and replacement.

We Provide:
  • Basement Waterproofing
  • Crawl Space Encapsulation
  • Leak Repairs
  • Exclusive, Patented Products
  • World's Best Sump Pumps
  • Energy-Efficient Dehumidifiers          
You Receive:
  • Permanently Dry Basement or Crawl Space
  • Controlled Humidity
  • Mold Mitigation
  • Lifetime Transferable Warranty
  • Greater Home Value
  • Peace of Mind
Work Requests From Portsmouth, NH
Project Location: Portsmouth, NH
We have a crawl space with falling insulation, no vapor barrier, and vents. We would like a quote on crawl space encapsulation. Roughly 200 sq. ft.
Project Location: Portsmouth, NH
1920s foundation-- basement leaks and I want to repair leaks- and make sure there is no mold and basement is dry
Project Location: Portsmouth, NH
Hi - I just bought a 220 year old home in Portsmouth, NH with a stone foundation and dirt/gravel basement. It's very moist down there, and I'd like to get an estimate on what it'll take to improve it (possibly new drainage system, concrete floor, better ventilation, new windows, etc.). Thanks!
Project Location: Portsmouth, NH
Slow leaks and wet floor after hard wain or snow melt
Project Location: Portsmouth, NH
I have a 233 square foot basement area that I would like to have finished to use as a playroom for my kids. Nothing fancy, just more livable. Would you be able to provide a rough quote and timeline for a project like this? Thanks!
Project Location: Portsmouth, NH
Buying a comm. frame bldg. 8600 sf, on piers, with skirting, exposed floor joist, 2-4 feet clearance, on dirt floor, closed cell foam, 3 inch approx. for r rating of 25 or as recommended. need quote, recommnedation, time frame.
Project Location: Portsmouth, NH
Water infiltration at cracked concrete slab floor (older, decommisioned oil lines come through the floor in a number of trouble spots) and also at the Stone/brick wall. There is a sump well installed at the lowest point of the basement, but the leaks appear on the opposite side of the basement and the water must flow across the entire slab. House is 100+ years old, and one of the previous owners installed a curbed gutter that simply hides the areas of greatest infiltration.
Project Location: Portsmouth, NH
Looking to finish my basement and want to understand waterproofing needs
Project Location: Portsmouth, NH
Want a sump pump du
Project Location: Portsmouth, NH
Waterproof whole basement Partial full-finish
Project Location: Portsmouth, NH
I have a previously finished basement (30x65) which was stripped (70's drop ceiling; panel walls, leaving it full unfinished). I would like an estimate for two projects: (1) installing four egress windows in the existing basement (2) cost for basement renovation including drop ceiling, sprayfoam insulation and walls/doorways.
Project Location: Portsmouth, NH
Looking for excavation of section of crawl space to create clearance and install vapor barrier.
Project Location: Portsmouth, NH
Would like to install a vapor barrier to reduce moisture in dirt floor basement of 200 year old house.
Project Location: Portsmouth, NH
I am doing a remodel on my basement and currently there are simply concrete floors and I would like a better solution that would work well for a studio apartment. Thank you!
Project Location: Portsmouth, NH
Looking to refinish my basement but want o make sure it is waterproofed before doing so.
Project Location: Portsmouth, NH
We have a home built in 1940 and have had water coming in during big storms. It's been more frequent in the past 6 months so we were hoping to get a professional opinion around the best way to tackle the issue
Project Location: Portsmouth, NH
Just finished my basement by myself this winter. Came out great. The basement had been dry for many years, so I though there was no big deal in finishing it and putting breathable carpet as flooring. The other day, the heavy rains caused us to get some water in the basement. I don't want this to happen anymore so I want to see what I can do about it. Please call me.
Project Location: Portsmouth, NH
I just purchased a home (1950's) with water issues in the basement. I'm dealing with the above-ground issues, but it appears that some water is also coming up through cracks in the floor.
Project Location: Portsmouth, NH
Hello I am interested in finishing part of our basement and also having someone install a cleargress basement door.
Project Location: Portsmouth, NH
We would like to get an estimate about waterproofing our basement.
Serving the following Portsmouth, NH zip codes
03801, 03802, 03803, 03804

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