86 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Longmont: Groundworks, CR Score 61/100; 4.7★ from 2,343 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): All Seasons Roofing and Restoration, posts 24/7 hours; ranked #4 of 86.
Most-reviewed: Liftech Concrete Leveling & Foundation Repair, 1,107 Google reviews at 4.9★, the most of 86 ranked after Groundworks; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
86 Longmont foundation repair companies are ranked here by CR Score, from ten published factors. 4 are open 24/7, 45 open Saturdays and 22 open Sundays, based on posted hours. The median Google rating is 4.8★ across 86 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Groundworks | 61 | 4.7★ (2,343) | Denver, 28 mi away | Sat · Sun · Evenings | Overall |
| 2 | Thrasher Foundation Repair | 60 | 4.8★ (602) | Brighton, 24 mi away | Sat · Sun | — |
| 3 | Hendricks Crawlspace & Basement Waterproofing | 54 | 5.0★ (21) | Lakewood, 29 mi away | Sat · Sun | — |
| 4 | All Seasons Roofing and Restoration | 54 | 4.8★ (128) | Loveland, 16 mi away | 24/7 | Emergencies |
| 5 | Ramado Mold Remediation Fort Collins | 53 | 5.0★ (12) | Fort Collins, 28 mi away | Sat · Sun · Evenings | — |
| 6 | Foundations Mechanical Services, LLC | 53 | 5.0★ (44) | Erie, 10 mi away | Sat | — |
| 7 | Liftech Concrete Leveling & Foundation Repair | 53 | 4.9★ (1,107) | Lakewood, 32 mi away | — | Most reviews |
| 8 | 1st Response Roofing Ltd. | 52 | 4.9★ (68) | Boulder, 15 mi away | Sat · Sun · Evenings | — |
| 9 | Groundworks | 52 | 4.7★ (289) | Fort Collins, 26 mi away | Sat · Sun · Evenings | — |
| 10 | HomeStrong | 52 | 5.0★ (313) | Denver, 26 mi away | Sat | — |
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 review volume: 4.7★ from 2,343 Google reviews, the most in Longmont.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brighton, 24 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 602 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lakewood, 29 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Loveland, 16 mi away
Ranked #4 because of its Google rating and review volume: 4.8★ from 128 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fort Collins, 28 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Erie, 10 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lakewood, 32 mi away
Ranked #7 because of its Google rating and review volume: 4.9★ from 1,107 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boulder, 15 mi away
Ranked #8 because of its Google rating and review volume: 4.9★ from 68 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fort Collins, 26 mi away
Ranked #9 because of its Google rating and review volume: 4.7★ from 289 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Denver, 26 mi away
Ranked #10 because of its Google rating and review volume: 5.0★ from 313 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Louisville, 13 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Concrete contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boulder, 13 mi away
Ranked #12 because of its Google rating and trade focus: 4.5★ from 11 Google reviews, listed on Google as “Concrete contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Loveland, 15 mi away
Ranked #13 because of its Google rating and review volume: 5.0★ from 203 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Englewood, 36 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Foundation”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Thornton, 19 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 46 Google reviews, listed on Google as “Concrete contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sheridan, 36 mi away
Ranked #16 because of its Google rating and review volume: 4.9★ from 67 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Commerce City, 25 mi away
Ranked #17 because of its Google rating and trade focus: 3.4★ from 5 Google reviews, listed on Google as “Waterproofing service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Denver, 32 mi away
Ranked #18 because of its Google rating and review volume: 4.4★ from 131 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brighton, 30 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Foundation”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Denver, 28 mi away
Ranked #20 because of its Google rating and review volume: 4.9★ from 399 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Loveland, 17 mi away
Ranked #21 because of its Google rating and review volume: 4.9★ from 170 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boulder, 12 mi away
Ranked #22 because of its Google rating and trade focus: 4.3★ from 48 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Aurora, 32 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Concrete contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fort Collins, 19 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wheat Ridge, 26 mi away
Ranked #25 because of its Google rating and review volume: 5.0★ from 63 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
#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 86 ranked foundation repair companies here; the rest are on their profiles.
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 |
|---|---|---|
| 3model Construction, LLC | 4.6★ (18) | In Longmont |
| Aardvark Construction Co | 5.0★ (2) | 32 mi |
| Colorado Construction Services | In Longmont | |
| Colorado Drain Systems Inc. | 5.0★ (2) | 24 mi |
| Concrete Structures Inc | 5.0★ (1) | In Longmont |
| Custom Restoration Inc. | 5.0★ (2) | 28 mi |
| DAI Builders LLC | In Longmont | |
| Elite Foundation Repair | 3.0★ (2) | 28 mi |
| Foundations Mechanical Services | 5.0★ (1) | In Longmont |
| Ig Concrete LLC | 5.0★ (6) | In Longmont |
| MGM Waterproofing & Restoration Inc. | 5.0★ (2) | 27 mi |
| Michael's Roofing | 5.0★ (2) | 33 mi |
| N Line Electric | 4.7★ (9) | In Longmont |
| NG Companies | 4.4★ (31) | In Longmont |
| None | 4.6★ (20) | In Longmont |
| Prospect Landscape LLC | 5.0★ (5) | In Longmont |
| R R Concrete LLC | 4.9★ (84) | In Longmont |
| SA Concrete Works- concrete services in longmont, CO. | In Longmont | |
| Western Refractory Construction | 5.0★ (3) | In Longmont |
| YC Concrete & Metal Work | 5.0★ (1) | In Longmont |
National price ranges in USD, not adjusted for Longmont. 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 86 Longmont 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 Longmont 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 |