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Basement waterproofing done right the first time.

Backed by 13 patented products and a team of industry experts.
Currently booking installs
days out.
Jake Kapper
Jake Kapper
603 Basement Solutions Customer

Really professional guys from the quote to the install, not a single complaint.

Mark Brooks
Mark Brooks
603 Basement Solutions Customer

Excellent company! Couldn’t be happier with my choice. No hidden charges, very candid conversations about the problem and a great solution.

Ronald Powell
Ronald Powell
603 Basement Solutions Customer

Got 3 quotes in total, these guys tailored their approach to my specific problem and built a solution that solved it. Other company didn’t even listen when I talked.

Dan Reynolds
Dan Reynolds
603 Basement Solutions Customer

Short and easy process, happy with how it came out.

John Bell
John Bell
603 Basement Solutions Customer

Reviews didn’t lie, these guys are good at what they do.

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100% guaranteed to be dry for life.

Forever Dry System™

Enjoy Your Basement for Life with Our Patented Forever Dry System

The 603 Forever Dry system consists of a full perimeter drainage system, one 1/2hp Sump Pump per 120ft of drainage, vapor barrier on the walls and a dehumidifier. With this system we 100% guarantee you stay dry or we come back free of charge.

Also, if you plan to sell your home within your lifetime, this warranty is transferable to the next homeowner which will help you sell for more money! Who doesn’t love that?

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Become another one of our happy clients. Our team is qualified, insured, and eager to work with you to build your dream home for your family for years to come.

Our Services

What We Do

603 Basement Solutions is the #1 basement waterproofing and crawlspace services company in NH. Our installation teams all have 5+ years of experience and have completed thousands of jobs just like yours. We prioritize quality over quantity and make sure every customer is heard and responded to. If you are looking for a team that isn't going to treat you like another number, we would be happy to give you an estimate free of charge.

Basement Waterproofing

Basement waterproofing solutions are types of waterproofing systems that help your house keep the basement safe and dry.

Basement Finishing

Finishing your basement is a great way to increase the value of your home and create more space for your family.

Crawl Space Services

Crawl space services include - Encapsulation, Dehumidification, and Support Beams.

Our 100% Dry Guarantee

With our Forever Dry System, we 100% guarantee you stay dry or we come back free of charge.

Building Your Dream Future Home Basement Crawl Space

Created to change the way contracting is done.

We provide a white glove experience for a price 10-15% under our competition. We are able to do that because we built our company with automation in mind. The majority of our operations are done with software instead of humans which allows us to provide our premium services for less than other bloated companies in our industry.

2,000+ JOBS



Patented Products


Better Business Bureau

4.9 STAR

Google Reviews

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