Verified ranking
Best Basement Waterproofing in York County (Southern Maine)
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 strongest York County local independent: the same headline rating as the cross-border firms with a deeper review base (4.9 across 386 Google reviews, June 2026), an Arundel, ME address inside the county, and verified in-house coverage of all three core trades (waterproofing, foundation repair, crawl space). It owns a top spot in the York County local pack and out-reviews every firm here. A deep-rooted, in-county pick that we rank first for local-market relevance and review depth.
Ranks a close second on our methodology. It is the only company serving York County here that pairs a named whole-basement system (the Forever Dry System) with a transferable lifetime "Dry for Life" guarantee serviced by the same local crew that installs it, and it carries the cleanest proportional record of the group (4.9 across 250 Google reviews, 97.6 percent five-star on its dated breakdown), plus BBB A+ accreditation and the broadest in-house scope (waterproofing, structural and foundation repair, crawl space, radon). The honest caveat: it is an East Kingston, NH firm just over the line, so it does not hold a York County local-pack spot. We place it second behind the deeper-reviewed in-county incumbent, and ahead of it on system, warranty, scope, and clean record. Get both quotes.
Holds the number one spot in the York County Google local pack and the longest tenure of the group (35-plus years, Wells, ME), with a large review base (4.7 across 342 Google reviews, June 2026). It ranks third on our methodology for two reasons we disclose plainly: its rating sits below the leaders and its breakdown includes 23 one-star reviews, and it installs the national Basement Systems product line as a dealer rather than a self-branded system, so the warranty is a dealer warranty rather than its own. Strongest map-pack presence in the county; weaker on review cleanliness and on owning its system.
Well rated and established (4.9 across 76 Google reviews, June 2026), but on a smaller review base and based in Barrington, NH, so its roughly one-hour radius reaches the inland York County towns (Berwick, South Berwick, Sanford) more readily than the coast. A solid waterproofing-focused option for the inland towns.
Also serving the area
The national option, with a dedicated York, ME service-area page. It markets a patented national product line and a transferable lifetime warranty, but it is a national consolidator (HQ Virginia Beach, VA; the nearest branch is the former Rescon) whose warranty service runs through the national company, its corporate BBB profile shows 741 complaints closed in three years (largest category Service or Repair), and its local York County Google profile is thin (4.9 across 40 reviews, June 2026) next to the entrenched Maine independents.
A long-tenured Biddeford, ME licensee of the patented B-Dry interior-drain system (operating in Maine and NH since 1985). The brand and system are real, but its local Google profile is weak and polarized: 3.2 across 18 reviews, with 8 of those 18 at one star (June 2026). Worth knowing as the regional B-Dry option, but the review record trails every ranked company above.
Side-by-side
| Company | Type | Google (June 2026) | Named system | Published warranty | BBB |
|---|---|---|---|---|---|
| Basement Improvements LLC | local independent | 4.9 / 386 | None | Not retrieved at publication; ask at quote. | Not assessed here |
| 603 Basement Solutions | local independent | 4.9 / 250 | Forever Dry System | Publishes a transferable "Dry for Life" guarantee (marketing wording; exact written terms pending). | A+, BBB accredited since 2022 |
| TC Hafford Basement Systems | local national brand | 4.7 / 342 | Installs the national Basement Systems line (TripleSafe, WaterGuard, SaniDry) as a dealer rather than a self-branded system | Basement Systems dealer warranty (written terms not independently verified; ask at quote). | Not assessed here |
| NH Dry Basement | local independent | 4.9 / 76 | None | Not stated on its website. | Not assessed here |
| 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 |
| B-Dry of Maine & NH | local national brand | 3.2 / 18 | The B-Dry System (patented interior-drain waterproofing franchise) | B-Dry System warranty (written terms not independently verified; ask at quote). | Not assessed here |
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
Other services in York County (Southern Maine)
- Best Foundation Repair in York County (Southern Maine)
- Best Crawl Space Encapsulation in York County (Southern Maine)
Data verified as of the dates shown; star ratings change over time. See our methodology.