89/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 103 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 103 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Foundation Repair Companies in Flat Rock, MI (2026)
113 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Flat Rock: Mega Dry, CR Score 89/100; 5.0★ from 103 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Windsor Proof, posts 24/7 hours; ranked #2 of 113.
- 3
Most-reviewed: Foundation Systems of Michigan, 2,539 Google reviews at 4.7★, the most of 113 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
113 Flat Rock foundation repair companies are ranked here by CR Score, from 8 published factors. 25 are open 24/7, 77 open Saturdays and 42 open Sundays, based on posted hours. The median Google rating is 4.9★ across 113 rated businesses.
Top 10 foundation repair companies in Flat Rock at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Mega Dry | 89 | 5.0★ (103) | Farmington Hills, 16 mi away | 24/7 | Overall |
| 2 | Windsor Proof | 89 | 5.0★ (132) | Windsor, 19 mi away | 24/7 | Emergencies |
| 3 | Foundation Systems of Michigan | 88 | 4.7★ (2,539) | Livonia, 20 mi away | Sat · Sun · Evenings | Most reviews |
| 4 | Michigan Basements | 87 | 4.9★ (377) | Auburn Hills, 35 mi away | 24/7 | — |
| 5 | HomeSpec Waterproofing and Foundation Repair | 85 | 4.9★ (897) | Westland, 13 mi away | Sat | — |
| 6 | U.S. Waterproofing | 85 | 4.7★ (355) | Fraser, 36 mi away | 24/7 | — |
| 7 | Acculevel | 85 | 5.0★ (18) | Monroe, 14 mi away | 24/7 | — |
| 8 | Calculus Foundation Repair & Waterproofing | 85 | 5.0★ (254) | Eastpointe, 31 mi away | Sat · Sun · Evenings | — |
| 9 | Erie Home Basement Solutions | 84 | 4.6★ (148) | Toledo, 29 mi away | 24/7 | — |
| 10 | Foundation Systems of Michigan | 84 | 4.9★ (508) | Rochester Hills, 38 mi away | Sat · Sun · Evenings | — |
The 113 best foundation repair companies in Flat Rock, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Based in Windsor, 19 mi away
89/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 132 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 132 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- Windsor, ON N8X 1X3
Based in Livonia, 20 mi away
88/100CR ScoreRanked #3 because of its Google rating and review volume: 4.7★ from 2,539 Google reviews, the most Google reviews on this list (2,539).
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.7★ from 2,539 Google reviews
- Hours
- Mon–Fri 7 AM–11 PM · Sat 8 AM–11 PM · Sun 10 AM–11 PM
- Address
- 32985 Schoolcraft Rd, Livonia, MI 48150, United States
Based in Auburn Hills, 35 mi away
87/100CR ScoreRanked #4 because of its Google rating and availability: 4.9★ from 377 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 377 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 793 Industrial Ct, Bloomfield Township, MI 48302
Based in Westland, 13 mi away
85/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 897 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 897 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 9 AM–2 PM · Sun closed
- Address
- 3501 S Henry Ruff Rd, Westland, MI 48186
Based in Fraser, 36 mi away
85/100CR ScoreRanked #6 because of its Google rating and availability: 4.7★ from 355 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.7★ from 355 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 34400 Klein Rd, Fraser, MI 48026
#7 Acculevel
Based in Monroe, 14 mi away
85/100CR ScoreRanked #7 because of its Google rating and availability: 5.0★ from 18 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 18 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 428 S Monroe St Ste 202, Monroe, MI 48161
Based in Eastpointe, 31 mi away
85/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 254 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 254 Google reviews
- Hours
- Mon–Sun 7 AM–9 PM
- Address
- 23133 Gratiot Ave, Eastpointe, MI 48021
Based in Toledo, 29 mi away
84/100CR ScoreRanked #9 because of its Google rating and availability: 4.6★ from 148 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.6★ from 148 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5154 Enterprise Blvd, Toledo, OH 43612
Based in Rochester Hills, 38 mi away
84/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 508 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 508 Google reviews
- Hours
- Mon–Fri 7 AM–11 PM · Sat 8 AM–11 PM · Sun 10 AM–11 PM
- Address
- 2817 Bond St, Rochester Hills, MI 48309, United States
#11 EverDry Toledo
Based in Toledo, 37 mi away
84/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.7★ from 1,482 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.7★ from 1,482 Google reviews
- Hours
- Mon–Sun 8 AM–9 PM
- Address
- 2930 Centennial Rd, Toledo, OH 43617
Based in Troy, 32 mi away
84/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 297 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 297 Google reviews
- Hours
- Mon–Sun 9 AM–6 PM
- Address
- 977 E 14 Mile Rd #1003, Troy, MI 48083, United States
Based in Trenton, 7 mi away
84/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.7★ from 58 Google reviews, listed on Google as “Waterproofing service”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 4.7★ from 58 Google reviews
- Address
- 325 King Rd, Trenton, MI 48183, United States
Based in Milford, 20 mi away
83/100CR ScoreRanked #14 because of its Google rating and availability: 5.0★ from 81 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 81 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#15 Supreme Services
Based in Amherstburg, 20 mi away
83/100CR ScoreRanked #15 because of its Google rating and availability: 4.9★ from 457 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 457 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5156 Ure St Suite 1, Oldcastle, ON N0R 1L0
Based in Amherstburg, 19 mi away
83/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 429 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 429 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 9 AM–12 PM · Sun closed
Based in Amherstburg, 3 mi away
83/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 382 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 382 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 32755 Wood St, Rockwood, MI 48173, United States
Based in Farmington Hills, 29 mi away
83/100CR ScoreRanked #18 because of its Google rating and availability: 4.6★ from 38 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.6★ from 38 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 31500 W 13 Mile Rd, Farmington Hills, MI 48334, United States
Based in Auburn Hills, 32 mi away
82/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 81 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 81 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
Based in Essex, 20 mi away
81/100CR ScoreRanked #20 because of its Google rating and availability: 4.8★ from 4 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.8★ from 4 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Flat Rock
81/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 43 Google reviews
- Hours
- Mon–Sat 9 AM–6 PM · Sun closed
- Address
- 29974 Tamarack Dr, Flat Rock, MI 48134
Based in Warren, 31 mi away
81/100CR ScoreRanked #22 because of its Google rating and availability: 4.9★ from 292 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 292 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 25530 Schoenherr Rd, Warren, MI 48089
Based in Saint Clair Shores, 35 mi away
81/100CR ScoreRanked #23 because of its Google rating and availability: 5.0★ from 11 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 11 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Fraser, 35 mi away
81/100CR ScoreRanked #24 because of its Google rating and availability: 4.9★ from 390 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 390 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 17560 Helro Dr, Fraser, MI 48026
Based in Clinton Township, 37 mi away
81/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 58 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 58 Google reviews
- Hours
- Mon–Sat 7 AM–11 PM · Sun 9 AM–5 PM
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 113 ranked foundation repair companies here; the rest are on their profiles.
Also serving Flat Rock
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 |
|---|---|---|
| AM Professional Waterproofers | 5.0★ (2) | 11 mi |
| Aqua Seal Basement Waterproofing | 5.0★ (1) | 23 mi |
| BW Contracting, LLC | 5.0★ (2) | 35 mi |
| CSI Concrete Services Windsor (Footings, Foundations, and More) | 5.0★ (2) | 14 mi |
| Detroit Foundation Repair & Basement Waterproofing | 5.0★ (1) | 12 mi |
| FixMyBasement | 5.0★ (2) | 32 mi |
| Happy and Helpful Roofing | 5.0★ (2) | In Flat Rock |
| LANDMARKER CONSTRUCTION | 5.0★ (2) | 30 mi |
| Messina Concrete | 3.5★ (24) | In Flat Rock |
| Moretti Foundation, Co. | 5.0★ (1) | 4 mi |
| Porch,Chimney,Masonry,Concrete repair | 3.9★ (14) | In Flat Rock |
| Premier Waterproofing & Foundation Repair | 5.0★ (2) | 34 mi |
| Prosource Contractors | 5.0★ (8) | In Flat Rock |
| Rally Point Partners | 5.0★ (2) | 12 mi |
| Rand-Con Construction Inc | 5.0★ (2) | 28 mi |
| Rapid-Dri Foundation Solutions | 5.0★ (1) | 15 mi |
| Robin Construction, LLC | 5.0★ (1) | 30 mi |
| Tom's Basement Waterproofing | 4.0★ (2) | 33 mi |
| Triple H Construction | 5.0★ (1) | In Flat Rock |
| Water-Tite | 5.0★ (1) | 21 mi |
How much do foundation repair companies cost in Flat Rock?
National price ranges in USD, not adjusted for Flat Rock. 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 Flat Rock foundation repair companies
We scored 113 Flat Rock 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 Flat Rock 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 Flat Rock: frequently asked questions
Who is the best foundation repair company in Flat Rock?
By CR Score, the highest-ranked foundation repair company in Flat Rock, MI is Mega Dry with a CR Score of 89/100. It has 5.0★ from 103 Google reviews. It is open 24/7. Windsor Proof (#2) and Foundation Systems of Michigan (#3) follow. We ranked 113 foundation repair companies on 8 factors, last updated October 22, 2026.
How many foundation repair companies are there in Flat Rock?
ContractorsRanked ranks 113 foundation repair companies serving Flat Rock, MI. 1 of them is based in Flat Rock; the rest serve it from nearby towns. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which foundation repair companies in Flat Rock are open 24/7?
25 ranked foundation repair companies in Flat Rock post 24/7 hours. The highest-ranked are Mega Dry (#1), Windsor Proof (#2) and Michigan Basements (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Flat Rock work on weekends?
77 of 113 ranked foundation repair companies post Saturday hours and 42 post Sunday hours. The highest-ranked open Saturdays are Mega Dry (#1), Windsor Proof (#2) and Foundation Systems of Michigan (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Flat Rock?
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 Flat Rock. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Flat Rock foundation repair companies have?
The median Google rating among 113 rated foundation repair companies in Flat Rock is 4.9★, with a median of 37 reviews. Foundation Systems of Michigan has the most, 2,539 reviews, and ranks #3. 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 Flat Rock count in this ranking?
Yes, if they are within 40 mi of the Flat Rock 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 Flat Rock
- October 2026: CR Scores recalculated for 113 foundation repair companies serving Flat Rock.
- October 2026: 3 duplicate listings merged.
More foundation repair companies and Flat Rock pages
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