88/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 69 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 69 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 110 Isinglass Cir, Barrington, NH 03825
Best Foundation Repair Companies in Durham, NH (2026)
54 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Durham: NH Dry Basement, CR Score 88/100; 4.9★ from 69 Google reviews; open 7 days a week.
- 2
Best for emergencies (open 24/7): Unique Asphalt Paving, posts 24/7 hours; ranked #2 of 54.
- 10
Most-reviewed: Basement Improvements, LLC, 343 Google reviews at 4.9★, the most of 54 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
54 Durham foundation repair companies are ranked here by CR Score, from 8 published factors. 8 are open 24/7, 30 open Saturdays and 18 open Sundays, based on posted hours. The median Google rating is 4.9★ across 54 rated businesses.
Top 10 foundation repair companies in Durham at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | NH Dry Basement | 88 | 4.9★ (69) | Barrington, 8 mi away | Sat · Sun · Evenings | Overall |
| 2 | Unique Asphalt Paving | 87 | 4.9★ (40) | Haverhill, 26 mi away | 24/7 | Emergencies |
| 3 | Bigfoot Waterproofing | 85 | 5.0★ (107) | Andover, 32 mi away | Sat · Sun · Evenings | — |
| 4 | TC Hafford Basement Systems | 83 | 4.6★ (290) | Biddeford, 21 mi away | Sat · Evenings | — |
| 5 | Foundational Concrete Services | 83 | 5.0★ (44) | Derry, 31 mi away | 24/7 | — |
| 6 | Parkway Masonry&Construction,Chimney repairs, Foundation Waterproofing | 82 | 5.0★ (34) | Concord, 32 mi away | 24/7 | — |
| 7 | NH Groundscapes, LLC (NHG) | 81 | 4.9★ (56) | Concord, 23 mi away | 24/7 | — |
| 8 | Lapans Basement Waterproofing | 81 | 5.0★ (19) | Andover, 32 mi away | Sat · Sun · Evenings | — |
| 9 | Groundworks | 79 | 4.9★ (40) | Eliot, 12 mi away | Sat · Sun · Evenings | — |
| 10 | Basement Improvements, LLC | 78 | 4.9★ (343) | Biddeford, 28 mi away | Sat · Evenings | Most reviews |
The 54 best foundation repair companies in Durham, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Haverhill, 26 mi away
87/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 40 Google reviews, open 24/7.
- 4.9★ from 40 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 51 Greenville St, Haverhill, MA 01830
Based in Andover, 32 mi away
85/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 107 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 107 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
Based in Biddeford, 21 mi away
83/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.6★ from 290 Google reviews, listed on Google as “Waterproofing service”.
- 4.6★ from 290 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat 9 AM–1 PM · Sun closed
- Address
- 12 Homestead Dr, Wells, ME 04090
Based in Derry, 31 mi away
83/100CR ScoreRanked #5 because of its Google rating and availability: 5.0★ from 44 Google reviews, open 24/7.
- 5.0★ from 44 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Concord, 32 mi away
82/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 34 Google reviews, open 24/7.
- 5.0★ from 34 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 20 Foundry St, Concord, NH 03301
Based in Concord, 23 mi away
81/100CR ScoreRanked #7 because of its Google rating and availability: 4.9★ from 56 Google reviews, open 24/7.
- 4.9★ from 56 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 22 Gauthier Dr, Epsom, NH 03234
Based in Andover, 32 mi away
81/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 19 Google reviews
- Hours
- Mon–Fri 7:30 AM–8 PM · Sat–Sun 10 AM–2 PM
#9 Groundworks
Based in Eliot, 12 mi away
79/100CR ScoreRanked #9 because of its Google rating and availability: 4.9★ from 40 Google reviews, open 7 days a week.
- 4.9★ from 40 Google reviews
- Hours
- Mon–Fri 7 AM–11 PM · Sat 8 AM–11 PM · Sun 10 AM–11 PM
Based in Biddeford, 28 mi away
78/100CR ScoreRanked #10 because of its Google rating and review volume: 4.9★ from 343 Google reviews, the most Google reviews on this list (343).
- 4.9★ from 343 Google reviews
- Hours
- Mon–Fri 7 AM–8 PM · Sat 9 AM–1 PM · Sun closed
- Address
- 25 Limerick Rd, Arundel, ME 04046
Based in North Andover, 30 mi away
77/100CR ScoreRanked #11 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
- 5.0★ from 4 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1274 Osgood St, North Andover, MA 01845
Based in Haverhill, 25 mi away
76/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 30 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 76 15th Ave, Haverhill, MA 01830
Based in Chester, 27 mi away
75/100CR ScoreRanked #13 because of its Google rating and review volume: 4.9★ from 96 Google reviews, 96 Google reviews.
- 4.9★ from 96 Google reviews
- Hours
- Mon–Sat 7 AM–6 PM · Sun closed
Based in Chester, 17 mi away
75/100CR ScoreRanked #14 because of its Google rating and review volume: 4.9★ from 233 Google reviews, 233 Google reviews.
- 4.9★ from 233 Google reviews
- Hours
- Mon–Fri 8 AM–5:30 PM · Sat–Sun closed
- Address
- 213 Haverhill Rd Unit 8B, East Kingston, NH 03827
Based in Chester, 10 mi away
75/100CR ScoreRanked #15 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 7 days a week.
- 5.0★ from 3 Google reviews
- Hours
- Mon–Sun 7 AM–8 PM
Based in North Andover, 34 mi away
75/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.8★ from 52 Google reviews, listed on Google as “Waterproofing service”.
- 4.8★ from 52 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 800 Turnpike St #300, North Andover, MA 01845
Based in Acton, 39 mi away
74/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 29 Google reviews, open 7 days a week.
- 5.0★ from 29 Google reviews
- Hours
- Mon–Sun 7 AM–6 PM
#18 Demacon
Based in Buxton, 33 mi away
74/100CR ScoreRanked #18 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
- 5.0★ from 4 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Canton, 39 mi away
73/100CR ScoreRanked #19 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
- 5.0★ from 3 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Gloucester, 38 mi away
73/100CR ScoreRanked #20 because of its Google rating and availability: 4.6★ from 9 Google reviews, open 24/7.
- 4.6★ from 9 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in North Andover, 32 mi away
73/100CR ScoreRanked #21 because of its Google rating and review volume: 4.9★ from 224 Google reviews, 224 Google reviews.
- 4.9★ from 224 Google reviews
- Hours
- Mon–Thu 8 AM–6 PM · Fri 9 AM–2 PM · Sat–Sun closed
- Address
- 109 Davis St, North Andover, MA 01845
Based in Gilford, 35 mi away
72/100CR ScoreRanked #22 because of its Google rating and review volume: 4.9★ from 247 Google reviews, 247 Google reviews.
- 4.9★ from 247 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 34 Land Bank Ln, Wolfeboro, NH 03894
Based in Manchester, 29 mi away
72/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Waterproofing service”.
- 4.7★ from 12 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 476 Valley St, Manchester, NH 03103
Based in Pinehurst, 39 mi away
72/100CR ScoreRanked #24 because of its Google rating and review volume: 4.9★ from 87 Google reviews, 87 Google reviews.
- 4.9★ from 87 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
#25 Sweepnman, Inc.
Based in North Reading, 39 mi away
72/100CR ScoreRanked #25 because of its Google rating and review volume: 4.9★ from 264 Google reviews, 264 Google reviews.
- 4.9★ from 264 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 190 Main St, North Reading, MA 01864
Foundation repair companies ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 54 ranked foundation repair companies here; the rest are on their profiles.
Also serving Durham
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) | 16 mi |
| ABCO Foundations, Building Jacking & Masonry | 5.0★ (1) | 11 mi |
| Allstate Concrete Foundations inc. | 5.0★ (2) | 23 mi |
| Best Pour Concrete Foundations & Flatwork | 3.0★ (2) | 13 mi |
| CTM King Construction | 5.0★ (1) | 40 mi |
| Duke Emmons Foundations | 5.0★ (1) | 27 mi |
| Family Pro Epoxy and Waterproofing | 3.0★ (2) | 32 mi |
| Galika Concrete Foundations | 1.0★ (2) | 35 mi |
| Jeffrey Davis Concrete Foundations | 5.0★ (2) | 17 mi |
| Marc J Sinotte LLC Poured Concrete Foundations | 4.5★ (2) | 21 mi |
| Nobleport Roofing and Restoration | 5.0★ (1) | 26 mi |
| On Point Concrete Foundations, LLC | 5.0★ (1) | 36 mi |
| Outdoor Kitchen Guys | 5.0★ (1) | 35 mi |
| Pelletier Foundations | 5.0★ (1) | 27 mi |
| Ryan A Payeur Foundations Inc | 5.0★ (1) | 26 mi |
| Seacoast Foundations | 3.0★ (2) | In Durham |
| TWR Masonry Co | 5.0★ (1) | 13 mi |
| We Construction Group | 5.0★ (2) | 39 mi |
| Wentworth concrete and waterproofing LLC | 5.0★ (2) | 32 mi |
| Williams Foundations Inc. | 4.5★ (2) | 24 mi |
How much do foundation repair companies cost in Durham?
National price ranges in USD, not adjusted for Durham. 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 |
How we ranked Durham foundation repair companies
We scored 54 Durham 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 Durham 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 |
Foundation repair companies in Durham: frequently asked questions
Who is the best foundation repair company in Durham?
By CR Score, the highest-ranked foundation repair company in Durham, NH is NH Dry Basement with a CR Score of 88/100. It has 4.9★ from 69 Google reviews. It is open 7 days a week. Unique Asphalt Paving (#2) and Bigfoot Waterproofing (#3) follow. We ranked 54 foundation repair companies on 8 factors, last updated October 22, 2026.
How many foundation repair companies are there in Durham?
ContractorsRanked ranks 54 foundation repair companies serving Durham, NH. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which foundation repair companies in Durham are open 24/7?
8 ranked foundation repair companies in Durham post 24/7 hours. The highest-ranked are Unique Asphalt Paving (#2), Foundational Concrete Services (#5) and Parkway Masonry&Construction,Chimney repairs, Foundation Waterproofing (#6). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Durham work on weekends?
30 of 54 ranked foundation repair companies post Saturday hours and 18 post Sunday hours. The highest-ranked open Saturdays are NH Dry Basement (#1), Unique Asphalt Paving (#2) and Bigfoot Waterproofing (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Durham?
Foundation repair typically costs $2,225 to $8,133, with $5,174 typical (Per project: typical range of customer-reported repairs. US national range). This is a national range, not adjusted for Durham. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Durham foundation repair companies have?
The median Google rating among 54 rated foundation repair companies in Durham is 4.9★, with a median of 15 reviews. Basement Improvements, LLC has the most, 343 reviews, and ranks #10. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank foundation repair companies?
Each foundation repair company gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do foundation repair companies outside Durham count in this ranking?
Yes, if they are within 40 mi of the Durham city center, our service radius for foundation repair companies. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Update log for Durham
- October 2026: CR Scores recalculated for 54 foundation repair companies serving Durham.
More foundation repair companies and Durham pages
Foundation repair companies near Durham
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