Proudly Serving New Hampshire and Massachusetts with 20+ Years of Proven Results
Northeast Basement Solutions helps homeowners in Portsmouth, Rye, and nearby cities restore and repair wet basements, transforming them into clean, usable spaces. We offer basement waterproofing, finishing, and sump pump solutions with fast, free inspections and zero pressure to commit. If your basement leaks or just needs a fresh update, we provide long-lasting solutions that protect your home and add value.
Locally owned and backed by over 20 years of experience, we deliver custom basement services with competitive pricing and a lifetime warranty.
Our team also specializes in basement finishing, sump pump services, crawl space encapsulation, and repairing your home’s foundation.
We offer a wide range of basement finishing services designed to convert your boring-looking basement into a fully functioning living space!
A properly sealed crawl space is essential for protecting your property. Whether you need encapsulation, upgrades, or repairs, we’re here to help.
Got basement leaks, cracks, or mold? Need a finished basement? Reach out to Northeast Basement Solutions for a free inspection and basement services that deliver the longest lasting results.
Northeast Basement Solutions is ready to waterproof your basement, then create a dry, healthy, and comfortable environment with our finishing services.






A wet or damp basement can cause mold, structural damage, and poor air quality. We tackle the root of the issue with reliable waterproofing systems to protect your home. Our basement waterproofing services include:
Turn your basement into usable living space and increase your home’s value by starting your project with our expert team today.
* Warranties available on basement waterproofing systems.
A sump pump is essential for keeping your basement dry and preventing water damage. We offer comprehensive sump pump services to make sure your system is working peak performance all year.
We provide complete sump pump services, including professional installation with battery backups, fast repairs, routine maintenance, and discharge line repairs to keep your system running efficiently. Our team ensures your sump pump is ready to protect your basement during storms, power outages, and everyday water intrusion.
“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”
Brentwood, NH
“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!”
Lowell, MA
“We had a dark and moldy basement that is now a bright and clean home gym. They removed all the carpeting, moldy drywall, broken doors, old and broken ceiling lights and old and broken ceiling tiles and replaced everything with new and updated materials. They corrected some old, improperly wired electric stuff and insulated spots that were previously lacking insulation…We’ll be enjoying this space as we never have before and are really thankful we were able to work with N.E. Basement!”
Tewksbury, MA
Protect your basement from water, mold, and structural damage with Northeast Basement Solutions’ basement waterproofing services. Besides basements, our crew provides solutions for your home’s foundation, crawl space, and sump pump as well. So call us for an all-in-one service provider for your home today!
From waterproofing to finishing, these frequently asked questions cover what to expect and how we help protect and improve your basement.
A properly done basement waterproofing can last up to 8-10 years. We use high-quality materials and techniques to waterproof your basement. To make it last longer, we suggest getting routine maintenance.
It’s best to get your basement waterproofed as soon as you notice signs of water damage, such as leaks, mold, or cracks.
Yes! We need to dry the basement area before we can take our waterproofing measures. This ensures maximum waterproof effectiveness.
Yes, we can waterproof during the winter. However, our methods could change depending on the existing weather conditions.
It isn’t, but we highly recommend protecting your basement and home from water damage and structural problems—especially if you live in the coastal areas of New Hampshire and Massachusetts, where moisture can be a common issue.
Ready to move forward or need more information? Contact us today and let our experts guide your basement project from start to finish.
Our service area covers a wide portion of southern New Hampshire and northeastern Massachusetts, including the Seacoast, Merrimack Valley, and surrounding communities. We work with homeowners across dozens of towns in the region, delivering professional basement finishing, waterproofing, and moisture control services wherever they’re needed.