28 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in North Charleston: Crawlspace Medic of Charleston, CR Score 62/100; 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 #2 of 28.
Most-reviewed: Southline Roofing & Exteriors, 588 Google reviews at 4.9★, the most of 28 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
28 North 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 4.9★ across 28 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Crawlspace Medic of Charleston | 62 | 5.0★ (200) | Charleston, 7 mi away | Sat · Evenings | Overall |
| 2 | CNT Foundations | 62 | 4.6★ (327) | North Charleston | 24/7 | Emergencies |
| 3 | Mount Valley Foundation Services | 61 | 4.8★ (478) | Charleston, 4 mi away | Sat · Sun · Evenings | — |
| 4 | Charlestowne Crawlspace | 61 | 5.0★ (40) | Charleston, 1 mi away | Sat · Sun · Evenings | — |
| 5 | Southline Roofing & Exteriors | 57 | 4.9★ (588) | Charleston, 10 mi away | Sat | Most reviews |
| 6 | Cantey Foundation Specialists | 57 | 4.7★ (309) | North Charleston | — | — |
| 7 | Your Crawlspace Vapor Barrier Systems | 57 | 4.9★ (100) | Charleston, 17 mi away | — | — |
| 8 | Lowcountry Crawlspaces LLC | 56 | 4.8★ (87) | Charleston, 17 mi away | — | — |
| 9 | Crawl Space Ninja of Charleston | 56 | 5.0★ (6) | Charleston, 2 mi away | — | — |
| 10 | Crawl Logic Lowcountry | 55 | 5.0★ (52) | Charleston, 2 mi away | Sat · Sun · Evenings | — |
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 North Charleston
Ranked #2 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, 4 mi away
Ranked #3 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, 1 mi away
Ranked #4 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 Charleston, 10 mi away
Ranked #5 because of its Google rating and review volume: 4.9★ from 588 Google reviews, the most in North Charleston.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Charleston
Ranked #6 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, 17 mi away
Ranked #7 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, 17 mi away
Ranked #8 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, 2 mi away
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, 2 mi away
Ranked #10 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, 5 mi away
Ranked #11 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, 6 mi away
Ranked #12 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 Charleston, 8 mi away
Ranked #13 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, 29 mi away
Ranked #14 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 Summerville, 16 mi away
Ranked #15 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 Charleston, 8 mi away
Ranked #16 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 Camden, 18 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 North Charleston
Ranked #18 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 Goose Creek, 29 mi away
Ranked #19 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, 8 mi away
Ranked #20 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 Goose Creek, 7 mi away
Ranked #21 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
Ranked #22 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, 22 mi away
Ranked #23 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.
Based in North Charleston
Ranked #24 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Summerville, 15 mi away
Ranked #25 because of its Google rating and review volume: 4.3★ from 71 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
National price ranges in USD, not adjusted for North 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 28 North 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 North 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 |