Verified ranking · Updated June 2026
Best Foundation Repair in Manchester, 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.
Leads the Manchester local pack (4.9 across 567 Google reviews, June 2026) and brings the deepest structural-repair capability here, a patented national product line (IntelliJack piers, wall stabilization) for serious settlement and bowing-wall jobs. The trade-off is the national-consolidator model: warranty service runs through the national company, and its corporate BBB profile shows 741 complaints closed in three years, about 69 percent service or repair. The structural product line is why it leads for foundation work specifically, where it ranks ahead of where we place it for waterproofing.
A Manchester-based specialist with more than 30 years on foundation crack injection, leak repair, and bulkheads (4.8 across 51 Google reviews). For the most common foundation problem, a cracked or leaking poured wall, it is the focused, lower-cost, locally accountable pick. It does not do structural piering, so a settling or bowing wall points to the structural providers instead.
A Londonderry foundation repair and concrete contractor (4.8 across 52 Google reviews) handling foundation repair, crack repair, concrete leveling, and water control across the Manchester area. Its review themes run on reasonable pricing and knowledgeable staff, a genuinely local option for repair and leveling work.
Also serving the area
A family-owned Hudson firm and a Foundation Supportworks dealer (helical piers and wall anchors), with the deepest review base in the area (4.8 across 676) and a clean BBB record. A strong structural-repair alternative to Groundworks with local ownership.
Side-by-side
| Company | Type | Google (June 2026) | Named system | Published warranty | BBB |
|---|---|---|---|---|---|
| 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 |
| Crack-X | local national brand | 4.8 / 51 | The Crack-X process (epoxy/urethane crack injection; not full perimeter drainage) | 10-year transferable warranty on most wall cracks. | A+ but not accredited (Manchester profile) |
| Arta Foundation Repair | local independent | 4.8 / 52 | None | Not stated on its website; ask at quote. | Not assessed here |
| 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) |
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
Other services in Manchester, NH
- Best Basement Waterproofing in Manchester, NH
- Best Crawl Space Encapsulation in Manchester, NH
- Best Radon Mitigation in Manchester, NH
Data verified as of the dates shown; star ratings change over time. See our methodology.