60/100CR Score
Ranked #1 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
Best Foundation Repair Companies in Merrimack, NH (2026)
130 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Merrimack: Bigfoot Waterproofing, CR Score 60/100; 5.0★ from 107 Google reviews; open 7 days a week.
- 3
Best for emergencies (open 24/7): Unique Asphalt Paving, posts 24/7 hours; ranked #3 of 130.
- 6
Most-reviewed: A-1 Foundation Crack Repair, Inc., 495 Google reviews at 4.9★, the most of 130 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
130 Merrimack foundation repair companies are ranked here by CR Score, from ten published factors. 31 are open 24/7, 88 open Saturdays and 54 open Sundays, based on posted hours. The median Google rating is 5.0★ across 130 rated businesses.
Top 10 foundation repair companies in Merrimack at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Bigfoot Waterproofing | 60 | 5.0★ (107) | Andover, 27 mi away | Sat · Sun · Evenings | Overall |
| 2 | Foundation Crack Repair | 60 | 5.0★ (127) | Andover, 30 mi away | Sat · Sun | — |
| 3 | Unique Asphalt Paving | 59 | 4.9★ (40) | Haverhill, 23 mi away | 24/7 | Emergencies |
| 4 | Groundworks | 59 | 4.8★ (123) | Burlington, 30 mi away | Sat · Sun · Evenings | — |
| 5 | Lapans Basement Waterproofing | 58 | 5.0★ (19) | Andover, 11 mi away | Sat · Sun · Evenings | — |
| 6 | A-1 Foundation Crack Repair, Inc. | 58 | 4.9★ (495) | Hudson, 33 mi away | Sat · Sun · Evenings | Most reviews |
| 7 | Foundational Concrete Services | 58 | 5.0★ (44) | Derry, 14 mi away | 24/7 | — |
| 8 | BG Foundation Repair | 58 | 5.0★ (36) | Marlborough, 35 mi away | 24/7 | — |
| 9 | Metro Masonry & foundation, waterproofing | 57 | 5.0★ (233) | Cambridge, 40 mi away | 24/7 | — |
| 10 | Effective Waterproofing | 57 | 4.9★ (37) | Grafton, 38 mi away | 24/7 | — |
The 130 best foundation repair companies in Merrimack, 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, 30 mi away
60/100CR ScoreRanked #2 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
Based in Haverhill, 23 mi away
59/100CR ScoreRanked #3 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
#4 Groundworks
Based in Burlington, 30 mi away
59/100CR ScoreRanked #4 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, 11 mi away
58/100CR ScoreRanked #5 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 Hudson, 33 mi away
58/100CR ScoreRanked #6 because of its Google rating and review volume: 4.9★ from 495 Google reviews, the most in Merrimack.
- 4.9★ from 495 Google reviews
- Hours
- Mon–Sun 7 AM–8 PM
- Address
- 282 Central St STE 9, Hudson, MA 01749
Based in Derry, 14 mi away
58/100CR ScoreRanked #7 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 Marlborough, 35 mi away
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 36 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 335 Mechanic St, Marlborough, MA 01752
Based in Cambridge, 40 mi away
57/100CR ScoreRanked #9 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 Grafton, 38 mi away
57/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 37 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 37 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#11 NH Dry Basement
Based in Barrington, 37 mi away
57/100CR ScoreRanked #11 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 Westford, 17 mi away
57/100CR ScoreRanked #12 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 Waltham, 34 mi away
56/100CR ScoreRanked #13 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 Newton, 38 mi away
56/100CR ScoreRanked #14 because of its Google rating and review volume: 5.0★ from 112 Google reviews.
- 5.0★ from 112 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 275 Grove St Suite 4017, Newton, MA 02466
Based in Framingham, 38 mi away
56/100CR ScoreRanked #15 because of its Google rating and review volume: 5.0★ from 102 Google reviews.
- 5.0★ from 102 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6 Grace St, Framingham, MA 01701
Based in Burlington, 31 mi away
55/100CR 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, 26 mi away
55/100CR 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 Athol, 24 mi away
55/100CR ScoreRanked #18 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
Based in Brookline, 29 mi away
55/100CR ScoreRanked #19 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 Leominster, 27 mi away
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 60 Google reviews, listed on Google as “Contractor”.
- 5.0★ from 60 Google reviews
- Hours
- Mon–Sun 9 AM–7 PM
- Address
- Leominster, MA 01453
Based in North Andover, 24 mi away
54/100CR ScoreRanked #21 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 Waltham, 36 mi away
54/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Concrete contractor”.
- 4.9★ from 54 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 77 Prentice St, Waltham, MA 02451
Based in Haverhill, 21 mi away
54/100CR ScoreRanked #23 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 Sterling, 31 mi away
54/100CR ScoreRanked #24 because of its Google rating and review volume: 4.9★ from 123 Google reviews.
- 4.9★ from 123 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 176 Clinton Rd, Sterling, MA 01564
#25 Wooster Roofing
Based in Tewksbury, 21 mi away
54/100CR ScoreRanked #25 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
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 130 ranked foundation repair companies here; the rest are on their profiles.
Also serving Merrimack
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 |
|---|---|---|
| Allstate Concrete Foundations inc. | 5.0★ (2) | 24 mi |
| Beacon Waterproofing | 3.0★ (2) | 37 mi |
| Best Pour Concrete Foundations & Flatwork | 3.0★ (2) | 32 mi |
| Capital One Foundations and Masonry | 5.0★ (2) | 22 mi |
| Central Mass Concrete Foundations | 5.0★ (2) | 36 mi |
| CTM King Construction | 5.0★ (1) | 18 mi |
| Family Pro Epoxy and Waterproofing | 3.0★ (2) | 20 mi |
| Galika Concrete Foundations | 1.0★ (2) | 31 mi |
| Jeffrey Davis Concrete Foundations | 5.0★ (2) | 21 mi |
| Keystone foundation and waterproofing | 5.0★ (2) | 26 mi |
| Marc J Sinotte LLC Poured Concrete Foundations | 4.5★ (2) | 22 mi |
| On Point Concrete Foundations, LLC | 5.0★ (1) | 12 mi |
| Outdoor Kitchen Guys | 5.0★ (1) | 13 mi |
| Pat Torcasio Contractors, LLC | 5.0★ (2) | 37 mi |
| Pittol Construction and Foundation | 3.0★ (2) | 30 mi |
| Ronchetti Waterproofing | 5.0★ (2) | 33 mi |
| Seacoast Foundations | 3.0★ (2) | 27 mi |
| T B Concrete Foundations | 5.0★ (2) | 21 mi |
| We Construction Group | 5.0★ (2) | 28 mi |
| Wentworth concrete and waterproofing LLC | 5.0★ (2) | 7 mi |
How much do foundation repair companies cost in Merrimack?
National price ranges in USD, not adjusted for Merrimack. 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 Merrimack foundation repair companies
We scored 130 Merrimack 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 Merrimack 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 Merrimack: frequently asked questions
Who is the best foundation repair company in Merrimack?
By CR Score, the highest-ranked foundation repair company in Merrimack, NH is Bigfoot Waterproofing with a CR Score of 60/100. It has 5.0★ from 107 Google reviews. It is open 7 days a week. Foundation Crack Repair (#2) and Unique Asphalt Paving (#3) follow. We ranked 130 foundation repair companies on ten factors, last updated October 22, 2026.
How many foundation repair companies are there in Merrimack?
ContractorsRanked ranks 130 foundation repair companies serving Merrimack, NH. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which foundation repair companies in Merrimack are open 24/7?
31 ranked foundation repair companies in Merrimack post 24/7 hours. The highest-ranked are Unique Asphalt Paving (#3), Foundational Concrete Services (#7) and BG Foundation Repair (#8). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Merrimack work on weekends?
88 of 130 ranked foundation repair companies post Saturday hours and 54 post Sunday hours. The highest-ranked open Saturdays are Bigfoot Waterproofing (#1), Foundation Crack Repair (#2) and Unique Asphalt Paving (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Merrimack?
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 Merrimack. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Merrimack foundation repair companies have?
The median Google rating among 130 rated foundation repair companies in Merrimack is 5.0★, with a median of 20 reviews. A-1 Foundation Crack Repair, Inc. has the most, 495 reviews, and ranks #6. 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 Merrimack count in this ranking?
Yes, if they are within 40 mi of the Merrimack 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 Merrimack
- October 2026: CR Scores recalculated for 130 foundation repair companies serving Merrimack.
More foundation repair companies and Merrimack pages
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