Company profile · Verified June 2026
603 Basement Solutions
Locally owned New Hampshire basement, foundation, and structural company based in East Kingston, serving New Hampshire, Maine, and Massachusetts. A full-service shop: basement waterproofing (its branded Forever Dry System), structural and foundation repair including helical and push piers, foundation crack repair, crawl space encapsulation, basement finishing, radon mitigation, concrete and poly leveling, egress windows, and mold, water, and fire damage restoration.
Google reviews
4.9 ★ across 250 Google reviews (2026-06-03).
Rating breakdown as of 2026-05-19.
What reviewers mention most
At a glance
| Type | local independent |
|---|---|
| Based in | East Kingston, NH |
| Website | 603basementsolutions.com |
| Named system | Forever Dry System |
| Published warranty | Publishes a transferable "Dry for Life" guarantee (marketing wording; exact written terms pending). |
| BBB | A+, BBB accredited since 2022 |
| Scope | Basement waterproofing (Forever Dry System), structural and foundation repair (helical and push piers, bowing-wall stabilization, foundation wall replacement, sill and beam replacement), foundation crack repair, crawl space encapsulation, basement finishing, radon mitigation, concrete and poly leveling, egress windows, mold and water/fire damage restoration |
Where it appears
- Best Basement Waterproofing in the NH Seacoast (Exeter area)
- Best Basement Waterproofing in Manchester, NH
- Best Foundation Repair in the NH Seacoast (Exeter area)
- Best Crawl Space Encapsulation in the NH Seacoast (Exeter area)
- Best Radon Mitigation in Manchester, NH
- Best Radon Mitigation in Nashua, NH
- Best Radon Mitigation in the NH Seacoast (Exeter area)
- Best Basement Waterproofing in Salem, NH
- Best Helical Pier Installation in New Hampshire
- Groundworks vs 603 Basement Solutions
- 603 Basement Solutions vs Erickson Foundation Solutions
- Local Independent vs National Consolidator
- 603 Basement Solutions vs Crack-X
- Reliable Basement Waterproofing vs 603 Basement Solutions
- Groundworks vs Erickson Foundation Solutions
- 603 Basement Solutions vs NH Dry Basement
- Crack-X vs Groundworks
- TC Hafford Basement Systems vs 603 Basement Solutions
- 603 Basement Solutions vs Jackson & Company Foundation Repair
- How we rank (the Bedrock Standard)
Source: Google GBP via DataForSEO Business Listings (rating/distribution/topics, listing updated 2026-05-19; live count 250 on 2026-06-03); BBB profile (2026-06); 603 site for system/warranty.