About this guide

Fairfield County Dry Basement Guide is an independent, hand-verified directory of basement waterproofing companies serving Fairfield County, Connecticut. It was built from a Phase 2 research file dated 2026-11-01, company by company, from each company's own website, and the 20 companies were approved one by one in review on 2026-11-01.

How listings were verified

• A company's own website beats directories whenever they conflict. Directory phone numbers, addresses and license numbers were deliberately not used where they differed from the company's own site.
• License numbers appear only where the company's own website publishes one. Only 2 of the 20 companies in this guide publish a number on their own website: Connecticut Basement Systems and Residential ResQ.
• Ratings appear only where the research file records one from the company's own site, with source and count where given. Only 2 of the 20 companies in this guide publish a rating with a review count on their own website: Rain King Waterproofing and United Waterproofing.
• Prices appear only where a company publishes one on its own website. No company in this guide publishes a fixed price. Ranges, estimates and discounts found on company sites are quoted in the cost guide, labeled as ranges, estimates or discounts, never as company prices.
• Companies that publish no street address on their own site are marked as such. No address was invented for them.
• Company types are labeled: waterproofing specialists, foundation repair companies, drainage/crawlspace companies, general contractors, roofing and masonry/drainage companies, and water damage restoration companies. A company is never presented as a specialist when its own site presents waterproofing as one service line or as an installed system alongside another trade.

Featured listings

Featured listings are currently off for every company in this guide. No company paid for placement, and no company is marked as featured in the data. If a featured listing ever appears in future, it will be clearly labeled as a paid placement and will not change the verified facts in the profile. A featured label is never a quality endorsement.

Service-area companies

A service-area company serves Fairfield County but either publishes an office outside the county or publishes no street address on its own site. Those companies are marked as service-area companies in this guide.

Corrections

If a fact in a profile is wrong, write to listings@fairfieldcountydrybasement.com with the correction and a link to the page on your own website that shows it. We correct verified facts against the company's own website.

Photos on this site are illustrative and do not depict any listed company's own installations.