Company profile · Verified June 2026
603 Basement Solutions
603basementsolutions.com Google Business Profile
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 customers mention
Review themes from the verified Google Business Profile, with mention counts where available.
Services
Key facts
| 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 |
Where 603 Basement Solutions ranks
- Best Basement Waterproofing in the NH Seacoast (Exeter area)
- Best Foundation Repair in the NH Seacoast (Exeter area)
- Best Crawl Space Encapsulation in the NH Seacoast (Exeter area)
- Best Basement Waterproofing in Manchester, NH
- Best Foundation Repair in Manchester, NH
- Best Crawl Space Encapsulation in Manchester, NH
- Best Basement Waterproofing in Nashua, NH
- Best Foundation Repair in Nashua, NH
- Best Crawl Space Encapsulation in Nashua, NH
- Best Basement Waterproofing in Concord, NH
- Best Foundation Repair in Concord, NH
- Best Crawl Space Encapsulation in Concord, NH
- Best Basement Waterproofing in Salem & Derry, NH
- Best Foundation Repair in Salem & Derry, NH
- Best Crawl Space Encapsulation in Salem & Derry, NH
- Best Basement Waterproofing in the Merrimack Valley, MA
- Best Foundation Repair in the Merrimack Valley, MA
- Best Crawl Space Encapsulation in the Merrimack Valley, MA
- Best Basement Waterproofing in the North Shore, MA
- Best Foundation Repair in the North Shore, MA
- Best Crawl Space Encapsulation in the North Shore, MA
- Best Basement Waterproofing in York County (Southern Maine)
- Best Foundation Repair in York County (Southern Maine)
- Best Crawl Space Encapsulation in York County (Southern Maine)
- Best Radon Mitigation in Manchester, NH
- Best Radon Mitigation in Nashua, NH
- Best Radon Mitigation in the NH Seacoast (Exeter area)
- Best Helical Pier Installation in New Hampshire
Head-to-head comparisons
- 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
Verified: 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 and for the Certified Radon Mitigation Specialist credential; NRPP Radon Mitigation Specialist cert no. 113966-RMS per 603.