96 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Frederick: The Insulation Guys, CR Score 57/100; 4.8★ from 23 Google reviews; open 24/7.
Best for emergencies (open 24/7): Insulation Pros of Colorado, posts 24/7 hours; ranked #3 of 96.
Most-reviewed: EcoShield Pest Solutions, 4,537 Google reviews at 4.7★, the most of 96 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
96 Frederick insulation contractors are ranked here by CR Score, from ten published factors. 8 are open 24/7, 48 open Saturdays and 25 open Sundays, based on posted hours. The median Google rating is 4.9★ across 96 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | The Insulation Guys | 57 | 4.8★ (23) | Longmont, 10 mi away | 24/7 | Overall |
| 2 | EcoShield Pest Solutions | 57 | 4.7★ (4,537) | Longmont, 3 mi away | Sat | Most reviews |
| 3 | Insulation Pros of Colorado | 56 | 4.8★ (37) | Thornton, 16 mi away | 24/7 | Emergencies |
| 4 | One Hour Heating & Air Conditioning® of Denver | 56 | 4.7★ (1,623) | Westminster, 13 mi away | 24/7 | — |
| 5 | Advanced | 55 | 4.9★ (67) | Thornton, 13 mi away | Sat | — |
| 6 | Denver Spray Foam Insulation | 55 | 5.0★ (60) | Aurora, 21 mi away | Sat · Sun · Evenings | — |
| 7 | Unlimited Solutions | 55 | 5.0★ (30) | Longmont, 10 mi away | Sat · Evenings | — |
| 8 | Apex Group | 54 | 4.9★ (29) | Longmont, 10 mi away | Sat · Evenings | — |
| 9 | Front Range Spray Foam | 54 | 5.0★ (20) | Frederick | — | — |
| 10 | Bestway Insulation LLC | 54 | 4.6★ (64) | Lafayette, 12 mi away | Sat | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 4.8★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based in Longmont, 3 mi away
Ranked #2 because of its Google rating and review volume: 4.7★ from 4,537 Google reviews, the most in Frederick.
Based in Thornton, 16 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 37 Google reviews, listed on Google as “Insulation contractor”.
Based in Westminster, 13 mi away
Ranked #4 because of its Google rating and review volume: 4.7★ from 1,623 Google reviews.
Based in Thornton, 13 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 67 Google reviews, listed on Google as “Insulation contractor”.
Based in Aurora, 21 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 60 Google reviews, listed on Google as “Insulation contractor”.
Based in Longmont, 10 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Insulation contractor”.
Based in Longmont, 10 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based in Frederick
Ranked #9 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based in Lafayette, 12 mi away
Ranked #10 because of its Google rating and trade focus: 4.6★ from 64 Google reviews, listed on Google as “Insulation contractor”.
Based in Loveland, 21 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 203 Google reviews, listed on Google as “Insulation contractor”.
Based in Longmont, 11 mi away
Ranked #12 because of its Google rating and trade focus: 4.3★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based in Longmont, 9 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based in Aurora, 20 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 in Evans, 13 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based in Thornton, 13 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Roofing contractor”.
Based in Boulder, 17 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 71 Google reviews, listed on Google as “Insulation contractor”.
Based in Berthoud, 16 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 31 Google reviews, listed on Google as “Insulation contractor”.
Based in Commerce City, 21 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 160 Google reviews, listed on Google as “Insulation contractor”.
Based in Denver, 24 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Insulation contractor”.
Based in Wheat Ridge, 24 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 76 Google reviews, listed on Google as “Insulation contractor”.
Based in Brighton, 13 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based in Firestone, 9 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based in Brighton, 1 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based in Boulder, 17 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 92 Google reviews, listed on Google as “Insulation contractor”.
#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 96 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 |
|---|---|---|
| AA Insulation LLC | 5.0★ (2) | 17 mi |
| All Seasons Foam | 5.0★ (2) | 22 mi |
| Alpha Omega Construction | 5.0★ (1) | In Frederick |
| AURORA BUILDING COMPANY INC | 1.0★ (1) | 24 mi |
| Blue Sky Home and Lawn | 3 mi | |
| Brand Energy Solutions llc. | 5.0★ (1) | 21 mi |
| Classic Industrial Services Inc | 3.5★ (2) | 9 mi |
| Eco Wall Systems LLC | 5.0★ (2) | 21 mi |
| Elite Insulation Contractors Westminster | 5.0★ (2) | 18 mi |
| Foam Connection | 5.0★ (1) | 8 mi |
| Fortunato Insulation | 3.0★ (2) | 23 mi |
| High Mountain Sprayfoam, LLC. | 5.0★ (2) | 1 mi |
| Hybrid Handyman LLC | 5.0★ (1) | 5 mi |
| Insulation Services | 5.0★ (1) | 17 mi |
| JS Services Inc. | 4.0★ (1) | 11 mi |
| Mile High Drywall and Construction LLC | 5.0★ (1) | 24 mi |
| Paradox Poly-Lift | 5.0★ (1) | 13 mi |
| Probywall LLC Drywall and Insulation | 3.0★ (2) | 23 mi |
| Seal Tech Insulators LLC | 1.0★ (1) | 25 mi |
| Tl | 5.0★ (1) | 13 mi |
National price ranges in USD, not adjusted for Frederick. 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 96 Frederick 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 Frederick 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 |