62/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 40 Google reviews, listed on Google as “Foundation”.
- 4.9★ from 40 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 51 Greenville St, Haverhill, MA 01830
Best Foundation Repair Companies in Sandown, NH (2026)
112 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Sandown: Unique Asphalt Paving, CR Score 62/100; 4.9★ from 40 Google reviews; open 24/7.
- 7
Best for emergencies (open 24/7): Metro Masonry & foundation, waterproofing, posts 24/7 hours; ranked #7 of 112.
- 10
Most-reviewed: TC Hafford Basement Systems, 290 Google reviews at 4.6★, the most of 112 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
112 Sandown foundation repair companies are ranked here by CR Score, from ten published factors. 23 are open 24/7, 76 open Saturdays and 46 open Sundays, based on posted hours. The median Google rating is 5.0★ across 112 rated businesses.
Top 10 foundation repair companies in Sandown at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Unique Asphalt Paving | 62 | 4.9★ (40) | Haverhill, 13 mi away | 24/7 | Overall |
| 2 | Bigfoot Waterproofing | 62 | 5.0★ (107) | Andover, 20 mi away | Sat · Sun · Evenings | — |
| 3 | NH Dry Basement | 60 | 4.9★ (69) | Barrington, 24 mi away | Sat · Sun · Evenings | — |
| 4 | Foundation Crack Repair | 60 | 5.0★ (127) | Andover, 36 mi away | Sat · Sun | — |
| 5 | Groundworks | 59 | 4.8★ (123) | Burlington, 31 mi away | Sat · Sun · Evenings | — |
| 6 | Lapans Basement Waterproofing | 59 | 5.0★ (19) | Andover, 13 mi away | Sat · Sun · Evenings | — |
| 7 | Metro Masonry & foundation, waterproofing | 58 | 5.0★ (233) | Cambridge, 39 mi away | 24/7 | Emergencies |
| 8 | Foundational Concrete Services | 57 | 5.0★ (44) | Derry, 19 mi away | 24/7 | — |
| 9 | Dynamite waterproofing and masonry | 57 | 4.8★ (81) | Boston, 40 mi away | Sat · Sun · Evenings | — |
| 10 | TC Hafford Basement Systems | 57 | 4.6★ (290) | Biddeford, 40 mi away | Sat · Evenings | Most reviews |
The 112 best foundation repair companies in Sandown, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Andover, 20 mi away
62/100CR ScoreRanked #2 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 Barrington, 24 mi away
60/100CR ScoreRanked #3 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
Based in Andover, 36 mi away
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 127 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 127 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun 9 AM–4 PM
#5 Groundworks
Based in Burlington, 31 mi away
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 123 Google reviews, listed on Google as “Waterproofing service”.
- 4.8★ from 123 Google reviews
- Hours
- Mon–Fri 7 AM–11 PM · Sat 8 AM–11 PM · Sun 10 AM–11 PM
- Address
- 1500 District Ave, Burlington, MA 01803
Based in Andover, 13 mi away
59/100CR ScoreRanked #6 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
Based in Cambridge, 39 mi away
58/100CR ScoreRanked #7 because of its Google rating and review volume: 5.0★ from 233 Google reviews.
- 5.0★ from 233 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 45 Prospect St, Cambridge, MA 02139
Based in Derry, 19 mi away
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Concrete contractor”.
- 5.0★ from 44 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Boston, 40 mi away
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 81 Google reviews, listed on Google as “Waterproofing service”.
- 4.8★ from 81 Google reviews
- Hours
- Mon–Sun 7 AM–9 PM
- Address
- 90 Canal St, Boston, MA 02114
Based in Biddeford, 40 mi away
57/100CR ScoreRanked #10 because of its Google rating and review volume: 4.6★ from 290 Google reviews, the most in Sandown.
- 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 Waltham, 36 mi away
57/100CR ScoreRanked #11 because of its Google rating and review volume: 5.0★ from 106 Google reviews.
- 5.0★ from 106 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 303 Wyman St #300, Waltham, MA 02451
Based in Boston, 40 mi away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 25 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6 Liberty Sq #2760, Boston, MA 02109
Based in Haverhill, 11 mi away
57/100CR ScoreRanked #13 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 Westford, 25 mi away
56/100CR ScoreRanked #14 because of its Google rating and review volume: 5.0★ from 111 Google reviews.
- 5.0★ from 111 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 39 Lawson Rd, Westford, MA 01886
Based in North Andover, 19 mi away
56/100CR ScoreRanked #15 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 Burlington, 31 mi away
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 50 Google reviews, listed on Google as “Concrete contractor”.
- 5.0★ from 50 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- Seven Springs Ln #20C, Burlington, MA 01803
Based in Concord, 28 mi away
56/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “Construction company”.
- 5.0★ from 34 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 20 Foundry St, Concord, NH 03301
Based in Chester, 9 mi away
55/100CR ScoreRanked #18 because of its Google rating and review volume: 4.9★ from 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 Woburn, 32 mi away
55/100CR ScoreRanked #19 because of its Google rating and review volume: 5.0★ from 127 Google reviews.
- 5.0★ from 127 Google reviews
- Hours
- Mon–Fri 8:30 AM–6:30 PM · Sat 8:30 AM–5:30 PM · Sun closed
- Address
- 158 Main St Unit 1, Woburn, MA 01801
#20 Wooster Roofing
Based in Tewksbury, 23 mi away
55/100CR ScoreRanked #20 because of its Google rating and review volume: 4.9★ from 238 Google reviews.
- 4.9★ from 238 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat 7 AM–3 PM · Sun closed
- Address
- 525 Woburn St #4, Tewksbury, MA 01876
Based in Waltham, 38 mi away
55/100CR ScoreRanked #21 because of its Google rating and review volume: 4.9★ from 54 Google reviews.
- 4.9★ from 54 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 77 Prentice St, Waltham, MA 02451
Based in Concord, 23 mi away
55/100CR ScoreRanked #22 because of its Google rating and review volume: 4.9★ from 56 Google reviews.
- 4.9★ from 56 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 22 Gauthier Dr, Epsom, NH 03234
Based in Brookline, 34 mi away
55/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 29 Google reviews
- Hours
- Mon–Fri 7:30 AM–5 PM · Sat 9 AM–1 PM · Sun closed
Based in Chester, 15 mi away
54/100CR ScoreRanked #24 because of its Google rating and review volume: 4.9★ from 96 Google reviews.
- 4.9★ from 96 Google reviews
- Hours
- Mon–Sat 7 AM–6 PM · Sun closed
Based in Athol, 34 mi away
54/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 20 Google reviews
- Hours
- Mon–Thu 7:30 AM–6 PM · Fri 7:30 AM–5:30 PM · Sat 8 AM–4:30 PM · Sun closed
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 112 ranked foundation repair companies here; the rest are on their profiles.
Also serving Sandown
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 |
|---|---|---|
| ABCO Foundations, Building Jacking & Masonry | 5.0★ (1) | 11 mi |
| Allstate Concrete Foundations inc. | 5.0★ (2) | 21 mi |
| Beacon Waterproofing | 3.0★ (2) | 37 mi |
| Best Pour Concrete Foundations & Flatwork | 3.0★ (2) | 16 mi |
| Capital One Foundations and Masonry | 5.0★ (2) | 24 mi |
| Family Pro Epoxy and Waterproofing | 3.0★ (2) | 15 mi |
| Galika Concrete Foundations | 1.0★ (2) | 23 mi |
| Jeffrey Davis Concrete Foundations | 5.0★ (2) | 14 mi |
| Keystone foundation and waterproofing | 5.0★ (2) | 29 mi |
| Marc J Sinotte LLC Poured Concrete Foundations | 4.5★ (2) | 17 mi |
| Nobleport Roofing and Restoration | 5.0★ (1) | 21 mi |
| Outdoor Kitchen Guys | 5.0★ (1) | 16 mi |
| Pat Torcasio Contractors, LLC | 5.0★ (2) | 40 mi |
| Ronchetti Waterproofing | 5.0★ (2) | 33 mi |
| Seacoast Foundations | 3.0★ (2) | 11 mi |
| T B Concrete Foundations | 5.0★ (2) | 34 mi |
| TWR Masonry Co | 5.0★ (1) | 9 mi |
| Waterguard waterproofing and foundation | 5.0★ (2) | 39 mi |
| We Construction Group | 5.0★ (2) | 33 mi |
| Wentworth concrete and waterproofing LLC | 5.0★ (2) | 13 mi |
How much do foundation repair companies cost in Sandown?
National price ranges in USD, not adjusted for Sandown. 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 Sandown foundation repair companies
We scored 112 Sandown foundation repair companies on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, 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 Sandown data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
Foundation repair companies in Sandown: frequently asked questions
Who is the best foundation repair company in Sandown?
By CR Score, the highest-ranked foundation repair company in Sandown, NH is Unique Asphalt Paving with a CR Score of 62/100. It has 4.9★ from 40 Google reviews. It is open 24/7. Bigfoot Waterproofing (#2) and NH Dry Basement (#3) follow. We ranked 112 foundation repair companies on ten factors, last updated October 22, 2026.
How many foundation repair companies are there in Sandown?
ContractorsRanked ranks 112 foundation repair companies serving Sandown, NH. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which foundation repair companies in Sandown are open 24/7?
23 ranked foundation repair companies in Sandown post 24/7 hours. The highest-ranked are Unique Asphalt Paving (#1), Metro Masonry & foundation, waterproofing (#7) and Foundational Concrete Services (#8). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Sandown work on weekends?
76 of 112 ranked foundation repair companies post Saturday hours and 46 post Sunday hours. The highest-ranked open Saturdays are Unique Asphalt Paving (#1), Bigfoot Waterproofing (#2) and NH Dry Basement (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Sandown?
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 Sandown. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Sandown foundation repair companies have?
The median Google rating among 112 rated foundation repair companies in Sandown is 5.0★, with a median of 20 reviews. TC Hafford Basement Systems has the most, 290 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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do foundation repair companies outside Sandown count in this ranking?
Yes, if they are within 40 mi of the Sandown 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 Sandown
- October 2026: CR Scores recalculated for 112 foundation repair companies serving Sandown.
More foundation repair companies and Sandown pages
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