Basement Problems? With Us, You're Covered.

Waterproofing | Finishing | Sump Pumps

Proudly Serving New Hampshire and Massachusetts with 20+ Years of Proven Results

Free Inspections
Fast Estimates
Lifetime Warranty

Basement Solutions in New Hampshire & Massachusetts

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.

Basement Waterproofing and Finishing in Portsmouth

Basement Waterproofing

Basement Finishing

Sump Pumps

Crawl Space

Count on Our Effective Basement Waterproofing

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:

Drainage System

Directs water away from your basement to prevent flooding and moisture issues.

Dehumidification

Reduces excess moisture in the air, keeping your basement dry and mold-free.

Leaking Crack Repair

Seals foundation cracks to stop water infiltration and prevent further damage.

Vapor Brite Wall Barrier

Blocks moisture from walls to keep your basement dry and comfortable.

Turn Your Basement Into a Usable, Beautiful Space

Northeast Basement Solutions is ready to waterproof your basement, then create a dry, healthy, and comfortable environment with our finishing services. We install moisture-controlling insulation, dehumidifiers, and wall finishing to regulate basement temperature, and prevent mold or moisture buildup. Our process transforms your basement into the perfect living area.

Man Cave

Add custom lighting, seating, and a game-day vibe for every sport.

Home Gym

Go next-level with mirrors, padded floors, audio speakers, and a yoga space.

In-Law Apartment

Add a separate entrance, kitchen, bath, and guest storage.

Home Theater

Dazzle with tiered seating, surround sound, blackout curtains, and a big screen.

Bedroom

Maximize space with new insulation, bright lighting, and overall privacy.

Playroom

Create a safe, colorful, and organized space for maximum fun and learning.

Collage of sump pump repair and maintenance service

Sump Pump Services in Portsmouth & Rye

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.

Installation: We'll install sump pumps with battery backups for added security during power outages.
Repair: We'll quickly diagnose and repair any issues, from power problems to clogged sump pits.
Maintenance: We'll perform regular checkups to test the pump, clean the pit, and inspect the system.
Discharge Line: We'll repair frozen discharge lines quickly for efficient sump pump system drainage.

Zoeller Sump Pumps: Built for Long-lasting, Reliable Drainage

We recommend Zoeller sump pumps for their unmatched reliability and durability. Known for their high-performance design, Zoeller pumps are built to last and handle tough conditions. If you need a new installation or replacement, we offer sump pump services to keep your basement dry and secure year-round.

978-678-4080

Crawl Space Maintenance for Homes Across New England

Your crawl space plays a key role in the health and stability of your home, but it’s often overlooked. Moisture, mold, pests, and water damage can affect your crawl space and spread to your basement or foundation. Northeast Basement Solutions provides expert crawl space services to keep your home protected:

Encapsulation

Seal your crawl space to keep moisture, mold, and pests out.

Ventilation

Improve airflow to prevent wood rot and control humidity.

Dehumidification

Reduce excess moisture to prevent mold growth.

Waterproofing

Safeguard your home from water damage during heavy rains or floods.

Crawl Space Access

Install a durable access door for easy inspection and maintenance.

Crawl Space Repair

Repair leaks, cracks, and structural issues to keep your crawl space healthy.

A girl is suffering from allergies because of the humidity.

Control Moisture for Better Air Quality in Manchester

Excess moisture in your home can cause significant damage, including mold, pests, and structural weakening. By managing moisture with tools like dehumidifiers, waterproofing, and moisture control systems, we help reduce humidity and allergens, protect your foundation, and improve air quality.

At Northeast Basement Solutions, our moisture control solutions keep your basement and crawl space dry year-round, maintaining the health of your home and ensuring its long-term value.

Looking for Basement Experts? Your Search Ends Here!

Transferable lifetime warranty *

Savings up to 50% over other methods

Free, accurate estimates with no hidden costs

Fast installation with minimal disruption

Work with your insurance to make the process easier

Always on time and respectful of your home

Fast communication to keep you informed at every step

* Warranties available on basement waterproofing systems.

Ready to Upgrade Your Basement? Call Us Today!

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.

978-678-4080 or Contact Us Online!

Frequently Asked Questions (FAQs)

Does my basement need waterproofing?

Look for water stains, mold, musty smells, peeling paint, or standing water. These signs mean your basement has moisture problems. We provide a free inspection to find the best solution.

How long does waterproofing take?

Most of our projects are completed in 1–3 days, depending on the size and complexity. We work quickly with minimal disruption and keep you informed at every step.

Is a sump pump necessary?

If your basement is prone to flooding, a sump pump is a must. Our Zoeller pumps—with reliable battery backup—keep your basement dry and protect your home from water damage and mold.

Why encapsulate my crawl space?

Encapsulation seals out moisture, pests, and mold with a vapor barrier. This helps improve air quality, cut energy costs, and protect your home’s foundation. Call Northeast Basement Solutions for expert crawl space encapsulation you can trust!

Do you offer a warranty?

Yes, our transferable lifetime warranty covers select basement waterproofing systems, providing hassle-free repairs when needed.

Why Customers Trust Us With Their Basement

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

Eric Turer

Brentwood, NH

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

Jenn Miller

Lowell, MA

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!

Cheryl Edwards

Tewksbury, 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!

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