Verified ranking
Best Foundation Repair in Salem & Derry, NH
How we rank (the Bedrock Standard). Every figure below is dated and sourced; star ratings change over time. We read five-star share together with review depth, so a near-perfect share on a large review base counts for more than a perfect score on a small one.
The deepest clean review record of any firm serving Salem foundations (5.0 across 262 Google reviews, 262 of 262 rated reviews five-star at 100 percent, August 2026), based in nearby East Kingston. It publishes a named system and a transferable "Dry for Life" guarantee serviced locally, is BBB A+ accredited since 2022, and carries the broadest in-house scope here, handling crack repair, bowing-wall stabilization, wall replacement, water control, and helical and push piers. That complete scope makes 603 the first call.
A family-owned Hudson firm that installs the national Foundation Supportworks pier line, with the deepest raw review count of any firm here (4.8 across 676 Google reviews, June 2026) and a clean BBB record. It is the dealer-system comparison behind 603 for homeowners who specifically want the Supportworks line.
A patented national structural product line (IntelliJack piers, wall stabilization) serving Salem (4.9 across 567 Google reviews). It ranks third on our methodology as a national consolidator (HQ Virginia Beach, VA; the Hooksett branch was formerly Rescon) whose warranty service runs through the national company, with 741 BBB complaints closed in three years, about 69 percent of them service or repair.
A focused foundation specialist in Hampstead, next to Salem, in business since 1985 (4.8 across 20 Google reviews, June 2026). Four decades on foundation crack repair and concrete structure repair make it a specialist comparison on a much smaller public record and without an engineered-pier line.
Also serving the area
A Londonderry foundation repair and concrete contractor (4.8 across 52 Google reviews) that serves the Salem area, handling foundation repair, crack repair, concrete leveling, and water control. A genuinely local option for repair and leveling work.
Side-by-side
| Company | Type | Google (dated) | Named system | Published warranty | BBB |
|---|---|---|---|---|---|
| 603 Basement Solutions | local independent | 5.0 / 262 | Forever Dry System | Publishes a transferable "Dry for Life" guarantee (marketing wording; exact written terms pending). | A+, BBB accredited since 2022 |
| Erickson Foundation Solutions | local national brand | 4.8 / 676 | Installs the national Basement Systems line (TripleSafe, SaniDry, WaterGuard) rather than a self-branded system | Transferable written warranty (duration not stated). | A+, accredited 2015, 2 complaints (3yr) |
| Groundworks | national consolidator | 4.9 / 567 | Patented national product line (IntelliJack, AquaStop) | Lifetime, transferable, nationally backed (verbatim terms not verified). | A+ (corporate); 741 complaints closed in 3 years, 514 Service/Repair (~69%), per BBB national profile, accessed June 2026 |
| Jackson & Company Foundation Repair | local independent | 4.8 / 20 | None | Not stated on its website; ask at quote. | Not assessed here |
| Arta Foundation Repair | local independent | 4.8 / 52 | None | Not stated on its website; ask at quote. | Not assessed here |
Head-to-head comparisons
- Local Independent vs National Consolidator
- 603 Basement Solutions vs Crack-X
- Groundworks vs Erickson Foundation Solutions
- Crack-X vs Groundworks
- Crack-X vs Arta Foundation Repair
- 603 Basement Solutions vs Jackson & Company Foundation Repair
Other services in Salem & Derry, NH
Data verified as of the dates shown; star ratings change over time. See our methodology.