Your 1 stop shop for everything Basementy
❄️ Winter Blast Promotion – 6 Months No Interest Financing
Subject to approval*
Get a quote within 24 hours!


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


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


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.


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


Reviews didn’t lie, these guys are good at what they do.
Want us to reach out to you?
100% guaranteed to be dry for life.
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?
PROUDLY SERVICING NEW HAMPSHIRE, MAINE, AND MASSACHUSETTS
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.
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.