121 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Louisville: Insulation Pros of Colorado, CR Score 57/100; 4.8★ from 37 Google reviews; open 24/7.
Best for emergencies (open 24/7): One Hour Heating & Air Conditioning® of Denver, posts 24/7 hours; ranked #2 of 121.
Most-reviewed: EcoShield Pest Solutions, 4,537 Google reviews at 4.7★, the most of 121 ranked; ranked #15.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
121 Louisville insulation contractors are ranked here by CR Score, from ten published factors. 8 are open 24/7, 62 open Saturdays and 32 open Sundays, based on posted hours. The median Google rating is 4.9★ across 121 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Insulation Pros of Colorado | 57 | 4.8★ (37) | Thornton, 11 mi away | 24/7 | Overall |
| 2 | One Hour Heating & Air Conditioning® of Denver | 57 | 4.7★ (1,623) | Westminster, 8 mi away | 24/7 | Emergencies |
| 3 | Bestway Insulation LLC | 57 | 4.6★ (64) | Lafayette, 2 mi away | Sat | — |
| 4 | The Insulation Guys | 56 | 4.8★ (23) | Longmont, 14 mi away | 24/7 | — |
| 5 | Denver Spray Foam Insulation | 56 | 5.0★ (60) | Aurora, 18 mi away | Sat · Sun · Evenings | — |
| 6 | LEV Air Duct Cleaning INC | 56 | 4.6★ (206) | Denver, 19 mi away | Sat · Sun · Evenings | — |
| 7 | Cenco Roofing | 55 | 4.9★ (839) | Lakewood, 16 mi away | 24/7 | — |
| 8 | Extra Care insulation | 55 | 5.0★ (71) | Boulder, 7 mi away | — | — |
| 9 | Efficiency Revolution, LLC | 55 | 4.9★ (51) | Golden, 17 mi away | Sat · Sun | — |
| 10 | Advanced | 55 | 4.9★ (67) | Thornton, 13 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 trade focus: 4.8★ from 37 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Westminster, 8 mi away
Ranked #2 because of its Google rating and review volume: 4.7★ from 1,623 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lafayette, 2 mi away
Ranked #3 because of its Google rating and trade focus: 4.6★ from 64 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Longmont, 14 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Aurora, 18 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 60 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Denver, 19 mi away
Ranked #6 because of its Google rating and trade focus: 4.6★ from 206 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lakewood, 16 mi away
Ranked #7 because of its Google rating and review volume: 4.9★ from 839 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boulder, 7 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 71 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Golden, 17 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 51 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Thornton, 13 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 67 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Wheat Ridge, 14 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 76 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Boulder, 7 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 92 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Denver, 18 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Aurora, 17 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Longmont, 14 mi away
Ranked #15 because of its Google rating and review volume: 4.7★ from 4,537 Google reviews, the most in Louisville.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arvada, 12 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Longmont, 14 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Commerce City, 17 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 160 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Thornton, 11 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Frederick, 4 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Aurora, 20 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 28 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Thornton, 11 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Aurora, 24 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Longmont, 14 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Denver, 20 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 76 Google reviews, listed on Google as “Insulation contractor”.
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 121 ranked insulation contractors here; the rest are on their profiles.
20 more insulation contractors within 25 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 |
|---|---|---|
| 3 Birds Insulation | In Louisville | |
| AA Insulation LLC | 5.0★ (2) | 8 mi |
| Abacus Inspection Service | 4.8★ (16) | In Louisville |
| All City Insulation Llc | 5.0★ (1) | 15 mi |
| Alpha Omega Construction | 5.0★ (1) | 14 mi |
| Brand Energy Solutions llc. | 5.0★ (1) | 17 mi |
| Classic Industrial Services Inc | 3.5★ (2) | 23 mi |
| Colorado Mechanical Insulation | 5.0★ (2) | 23 mi |
| Domestic Insulation Co | 3.0★ (2) | 22 mi |
| Elite Insulation Contractors Westminster | 5.0★ (2) | 9 mi |
| Fortunato Insulation | 3.0★ (2) | 11 mi |
| High Mountain Sprayfoam, LLC. | 5.0★ (2) | 14 mi |
| HubRents | In Louisville | |
| Hybrid Handyman LLC | 5.0★ (1) | 10 mi |
| Insulation Pros | 5.0★ (2) | 23 mi |
| Insulation Services | 5.0★ (1) | 13 mi |
| JS Services Inc. | 4.0★ (1) | 17 mi |
| Paradox Poly-Lift | 5.0★ (1) | 16 mi |
| Value Engineered Products Inc. - A division of ASC Engineered Solutions | 5.0★ (2) | 20 mi |
| Western Builders | 3.0★ (2) | 23 mi |
National price ranges in USD, not adjusted for Louisville. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Attic insulation | $1,700 | $2,100 | $2,500 | Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range | October 2026 |
We scored 121 Louisville insulation contractors 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 Louisville 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 |