43 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Dover: NH Dry Basement, CR Score 88/100; 4.9★ from 69 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Unique Asphalt Paving, posts 24/7 hours; ranked #2 of 43.
Most-reviewed: Basement Improvements, LLC, 343 Google reviews at 4.9★, the most of 43 ranked; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
43 Dover foundation repair companies are ranked here by CR Score, from 8 published factors. 6 are open 24/7, 24 open Saturdays and 13 open Sundays, based on posted hours. The median Google rating is 4.9★ across 43 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | NH Dry Basement | 88 | 4.9★ (69) | Barrington, 6 mi away | Sat · Sun · Evenings | Overall |
| 2 | Unique Asphalt Paving | 86 | 4.9★ (40) | Haverhill, 31 mi away | 24/7 | Emergencies |
| 3 | Bigfoot Waterproofing | 85 | 5.0★ (107) | Andover, 37 mi away | Sat · Sun · Evenings | — |
| 4 | TC Hafford Basement Systems | 84 | 4.6★ (290) | Biddeford, 16 mi away | Sat · Evenings | — |
| 5 | Foundational Concrete Services | 82 | 5.0★ (44) | Derry, 34 mi away | 24/7 | — |
| 6 | Parkway Masonry&Construction,Chimney repairs, Foundation Waterproofing | 81 | 5.0★ (34) | Concord, 34 mi away | 24/7 | — |
| 7 | NH Groundscapes, LLC (NHG) | 81 | 4.9★ (56) | Concord, 25 mi away | 24/7 | — |
| 8 | Lapans Basement Waterproofing | 80 | 5.0★ (19) | Andover, 37 mi away | Sat · Sun · Evenings | — |
| 9 | Basement Improvements, LLC | 79 | 4.9★ (343) | Biddeford, 23 mi away | Sat · Evenings | Most reviews |
| 10 | Groundworks | 78 | 4.9★ (40) | Eliot, 16 mi away | Sat · Sun · Evenings | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 69 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Haverhill, 31 mi away
Ranked #2 because of its Google rating and availability: 4.9★ from 40 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Andover, 37 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 107 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Biddeford, 16 mi away
Ranked #4 because of its Google rating and trade focus: 4.6★ from 290 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Derry, 34 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 44 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Concord, 34 mi away
Ranked #6 because of its Google rating and availability: 5.0★ from 34 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Concord, 25 mi away
Ranked #7 because of its Google rating and availability: 4.9★ from 56 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Andover, 37 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Biddeford, 23 mi away
Ranked #9 because of its Google rating and review volume: 4.9★ from 343 Google reviews, the most Google reviews on this list (343).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Eliot, 16 mi away
Ranked #10 because of its Google rating and availability: 4.9★ from 40 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in North Andover, 35 mi away
Ranked #11 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Haverhill, 30 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chester, 31 mi away
Ranked #13 because of its Google rating and review volume: 4.9★ from 96 Google reviews, 96 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Buxton, 28 mi away
Ranked #14 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chester, 22 mi away
Ranked #15 because of its Google rating and review volume: 4.9★ from 233 Google reviews, 233 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chester, 15 mi away
Ranked #16 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in North Andover, 39 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 52 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Gilford, 32 mi away
Ranked #18 because of its Google rating and review volume: 4.9★ from 247 Google reviews, 247 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in North Andover, 37 mi away
Ranked #19 because of its Google rating and review volume: 4.9★ from 224 Google reviews, 224 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manchester, 33 mi away
Ranked #20 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Saco, 33 mi away
Ranked #21 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Concrete contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Bedford, 36 mi away
Ranked #22 because of its Google rating and review volume: 5.0★ from 22 Google reviews, 22 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Andover, 30 mi away
Ranked #23 because of its Google rating and availability: 2.3★ from 3 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bedford, 37 mi away
Ranked #24 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Haverhill, 30 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #43, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | C & J Landscaping | 69 | 4.5★ (17) | 31 mi |
| 27 | Erickson Construction Co., Inc. | 69 | 4.6★ (13) | 39 mi |
| 28 | B-Dry Basement Waterproofing of Maine and New Hampshire, LLC | 69 | 3.2★ (18) | 28 mi |
| 29 | Masonryking foundation waterproofing & construction | 68 | 5.0★ (3) | 38 mi |
| 30 | Town Line Foundations | 68 | 5.0★ (4) | 33 mi |
| 31 | Georgetown Foundations Inc | 68 | 3.7★ (3) | 33 mi |
| 32 | Powell Enterprises | 68 | 4.2★ (5) | 25 mi |
| 33 | The Chimney Company | 68 | 4.6★ (10) | 33 mi |
| 34 | New England Waterproofing Inc | 68 | 5.0★ (3) | 39 mi |
| 35 | CrackX | 67 | 4.8★ (32) | 32 mi |
| 36 | DeRossi Classic Home Specialists | 66 | 5.0★ (4) | 35 mi |
| 37 | Olympic Roofing - Topsfield MA | 66 | 4.3★ (120) | 37 mi |
| 38 | Marchand Concrete Foundations | 66 | 4.2★ (5) | 30 mi |
| 39 | F.B.I. Contracting LLC | 65 | 4.4★ (65) | 39 mi |
| 40 | CeeLo's Landscaping | 65 | 5.0★ (3) | 33 mi |
| 41 | Streamline Waterproofing | 65 | 4.0★ (3) | 32 mi |
| 42 | White Rock Logging & Excavating | 65 | 2.7★ (7) | 34 mi |
| 43 | Builders Installed Products New Hampshire | 63 | 3.5★ (20) | 29 mi |
20 more foundation repair companies within 40 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| A. Fenderson Concrete Floors & Foundations | 5.0★ (1) | 11 mi |
| ABCO Foundations, Building Jacking & Masonry | 5.0★ (1) | 16 mi |
| Allstate Concrete Foundations inc. | 5.0★ (2) | 25 mi |
| Best Pour Concrete Foundations & Flatwork | 3.0★ (2) | 17 mi |
| Duke Emmons Foundations | 5.0★ (1) | 22 mi |
| EAST PEAK EXCAVATION | 11 mi | |
| Family Pro Epoxy and Waterproofing | 3.0★ (2) | 37 mi |
| Galika Concrete Foundations | 1.0★ (2) | 39 mi |
| Jeffrey Davis Concrete Foundations | 5.0★ (2) | 20 mi |
| Marc J Sinotte LLC Poured Concrete Foundations | 4.5★ (2) | 23 mi |
| Morse Foundations | 8 mi | |
| Nobleport Roofing and Restoration | 5.0★ (1) | 30 mi |
| On Point Concrete Foundations, LLC | 5.0★ (1) | 40 mi |
| Outdoor Kitchen Guys | 5.0★ (1) | 40 mi |
| Pelletier Foundations | 5.0★ (1) | 22 mi |
| Ryan A Payeur Foundations Inc | 5.0★ (1) | 22 mi |
| Seacoast Foundations | 3.0★ (2) | 13 mi |
| TWR Masonry Co | 5.0★ (1) | 18 mi |
| Wentworth concrete and waterproofing LLC | 5.0★ (2) | 37 mi |
| Williams Foundations Inc. | 4.5★ (2) | 19 mi |
National price ranges in USD, not adjusted for Dover. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Foundation repair | $2,225 | $5,174 | $8,133 | Per project: typical range of customer-reported repairs. US national range | October 2026 |
We scored 43 Dover foundation repair companies on 8 factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Dover data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |