30 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Charleston: Crawlspace Medic of Charleston, CR Score 63/100; 5.0★ from 200 Google reviews; open Saturdays until 6:30 PM.
Best for emergencies (open 24/7): CNT Foundations, posts 24/7 hours; ranked #4 of 30.
Most-reviewed: Southline Roofing & Exteriors, 588 Google reviews at 4.9★, the most of 30 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
30 Charleston foundation repair companies are ranked here by CR Score, from ten published factors. 4 are open 24/7, 12 open Saturdays and 8 open Sundays, based on posted hours. The median Google rating is 4.8★ across 30 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Crawlspace Medic of Charleston | 63 | 5.0★ (200) | Charleston | Sat · Evenings | Overall |
| 2 | Mount Valley Foundation Services | 62 | 4.8★ (478) | Charleston | Sat · Sun · Evenings | — |
| 3 | Charlestowne Crawlspace | 62 | 5.0★ (40) | Charleston | Sat · Sun · Evenings | — |
| 4 | CNT Foundations | 61 | 4.6★ (327) | North Charleston, 6 mi away | 24/7 | Emergencies |
| 5 | Your Crawlspace Vapor Barrier Systems | 59 | 4.9★ (100) | Charleston | — | — |
| 6 | Southline Roofing & Exteriors | 59 | 4.9★ (588) | Charleston | Sat | Most reviews |
| 7 | Lowcountry Crawlspaces LLC | 59 | 4.8★ (87) | Charleston | — | — |
| 8 | Lowcountry Remediation | 58 | 5.0★ (72) | Charleston | 24/7 | — |
| 9 | Crawl Space Ninja of Charleston | 57 | 5.0★ (6) | Charleston | — | — |
| 10 | Walsh Crawlspace and Structural Repair | 56 | 4.7★ (6) | Charleston | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 200 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charleston
Ranked #2 because of its Google rating and review volume: 4.8★ from 478 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charleston
Ranked #3 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Charleston, 6 mi away
Ranked #4 because of its Google rating and review volume: 4.6★ from 327 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charleston
Ranked #5 because of its Google rating and trade focus: 4.9★ from 100 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charleston
Ranked #6 because of its Google rating and review volume: 4.9★ from 588 Google reviews, the most in Charleston.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charleston
Ranked #7 because of its Google rating and trade focus: 4.8★ from 87 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charleston
Ranked #8 because of its Google rating and review volume: 5.0★ from 72 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charleston
Ranked #9 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Waterproofing service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Charleston
Ranked #10 because of its Google rating and trade focus: 4.7★ from 6 Google reviews, listed on Google as “Waterproofing service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Charleston
Ranked #11 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Charleston, 7 mi away
Ranked #12 because of its Google rating and review volume: 4.7★ from 309 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charleston
Ranked #13 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charleston
Ranked #14 because of its Google rating and review volume: 5.0★ from 52 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charleston
Ranked #15 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Summerville, 21 mi away
Ranked #16 because of its Google rating and review volume: 4.4★ from 63 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Camden, 24 mi away
Ranked #17 because of its Google rating and review volume: 4.6★ from 30 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charleston
Ranked #18 because of its Google rating and review volume: 4.2★ from 27 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Charleston, 13 mi away
Ranked #19 because of its Google rating and trade focus: 4.1★ from 7 Google reviews, listed on Google as “Concrete contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Charleston
Ranked #20 because of its Google rating and trade focus: 4.8★ from 19 Google reviews, listed on Google as “Concrete contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Goose Creek, 33 mi away
Ranked #21 because of its Google rating and review volume: 5.0★ from 66 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Charleston
Ranked #22 because of its Google rating and trade focus: 4.5★ from 8 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Goose Creek, 12 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Charleston, 6 mi away
Ranked #24 because of its Google rating and trade focus: 4.5★ from 14 Google reviews, listed on Google as “Concrete contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Moncks Corner, 28 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Construction company”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#1 to #25 are shown in full above. Here are #26 to #30, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | ABC Exteriors LLC | 48 | 5.0★ (5) | In Charleston |
| 27 | Carolina Foam Pros. LLC | 48 | 3.5★ (11) | In Charleston |
| 28 | Crawl Space Avengers | 48 | 4.7★ (12) | 8 mi |
| 29 | Woodrum Concrete LLC | 47 | 4.3★ (71) | 21 mi |
| 30 | First Class Crawlspace Solutions | 47 | 5.0★ (13) | 16 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 |
|---|---|---|
| All Mighty Concrete Design | 4.9★ (64) | In Charleston |
| All Pro Crawlspace Solutions | 5.0★ (143) | In Charleston |
| Blitch Plumbing | 4.3★ (161) | In Charleston |
| Blue Collars | Charleston Plumbing and HVAC | 5.0★ (206) | In Charleston |
| Carolina Mold Solutions LLC | 5.0★ (87) | In Charleston |
| Charleston Painting Contractors | 4.8★ (187) | In Charleston |
| Charleston Tree Experts - SavATree | 4.7★ (225) | In Charleston |
| Commonwealth Contracting, LLC | 5.0★ (94) | In Charleston |
| Complete Crawlspace | 4.9★ (48) | In Charleston |
| Concrete Charleston | 4.8★ (158) | In Charleston |
| Cransten Handyman and Remodeling | 4.9★ (102) | In Charleston |
| Holy City Heating & Air, LLC | 4.9★ (1,019) | In Charleston |
| KTB Home Services, LLC | 4.8★ (48) | In Charleston |
| New Beginnings Construction, Inc | 4.9★ (444) | In Charleston |
| One Stop Contracting | 4.9★ (82) | In Charleston |
| Preferred Home Services | 4.9★ (1,712) | In Charleston |
| Quality Fence & Custom Outdoors | 5.0★ (61) | In Charleston |
| Rapid Repairs | 4.9★ (803) | In Charleston |
| Tek Crete Masonry & Concrete | 5.0★ (147) | In Charleston |
| Venture Concrete Charleston | 5.0★ (48) | In Charleston |
National price ranges in USD, not adjusted for Charleston. 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 30 Charleston 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 Charleston 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 |