One Call For All Your
Basement Needs
Refinishing. Waterproofing. Egress Access

Northeast Basement Solutions is your go-to source for all basement needs across New Hampshire and Massachusetts.

  • 20+ Years Experience
  • We Work With Your Insurance
  • Local Team
About Us

Basement Waterproofing & Finishing | Portsmouth

Basement Finishing in New Hampshire

Basement Waterproofing & Finishing in New Hampshire & Massachusetts

Northeast Basement Solutions is a contractor customers trust for basement waterproofing, basement finishing and flooring. We offer no obligation, free inspections. If you are a homeowner with a wet leaky basements or just want to transform your basement into a space you can use, let us help you update your home to keep it safe and healthy.

We are a locally owned and operated basement specialist. We provide innovative solutions for transforming your basement.

Why You Can Trust Northeast Basement Solutions
For Your Home

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Friendly Staff

Get ready for a friendly and fun visit from any other our staff. We are respectful and take care of your belongings if we are completing any projects for you.

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Quick Estimates

Getting a project completed shouldn’t mean waiting forever an estimate. If you need an estimate from Northeast Basement Solution you can count on a quick response.

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Accurate Start/End Timeline

Forget those deadlines that no one ever hits, because we do! While every project can have unforeseen situation arise, we always keep you up to date.

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We Call You Back, Promise

Finding a quality contractor these days can be difficult. But it shouldn’t be impossible to speak to one, which is why we promise to always call you back.

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Turnkey Solution

At Northeast Basement Solutions we help you from the initial inspection, all the way through to the final repair. We are a one stop shop for all your basement needs.

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Supporting Local Community

We are dedicated to helping our local community. We make sure our supplies, employees and more are all sourced from our local area to give back.

Why Customers Trust Us With Their Basement

Northeast Basement Solutions
  • 20+ Years of Experience
  • Locally Owned and Operated
  • Savings of Up to 50% Over Other Methods
  • A Transferable Lifetime Warranty for Basement Waterproofing Systems
  • We Work With Your Insurance
  • FREE Written Estimates and Inspections, and Fast Installation
Read What Our Customers Are Saying

We pride ourselves with the best customer service in the industry

  • Brentwood, NH
  • 5 Stars

The sump pump installation was done as a first step of a larger basement remodel project. The job was done quickly, done right, and the team made sure to explain what they were doing and why at every step, including a run through of how the system worked and what to expect once it was in. I have since hired Northeast Basement Solutions to do the full project and am having the same good experience thus far. Highest recommendation

  • Lowell, MA
  • 5 Stars

Mark and Miguel are A+ professionals! We used Northeast Basement Solutions for a foundation issue in our new home. They not only came in with a very reasonable quote, they started on the project quickly and took the time to educate us on several things we asked about. They were very responsive and communicated every step of the way. We will definitely be calling them for future waterproofing work. Thanks Northeast!

  • Dover, NH
  • 5 Stars

Would use Dan and team again!

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