66 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Longmont: The Insulation Guys, CR Score 60/100; 4.8★ from 23 Google reviews; open 24/7.
Best for emergencies (open 24/7): Insulation Pros of Colorado, posts 24/7 hours; ranked #8 of 66.
Most-reviewed: EcoShield Pest Solutions, 4,537 Google reviews at 4.7★, the most of 66 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
66 Longmont insulation contractors are ranked here by CR Score, from ten published factors. 7 are open 24/7, 34 open Saturdays and 14 open Sundays, based on posted hours. The median Google rating is 4.9★ across 66 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | The Insulation Guys | 60 | 4.8★ (23) | Longmont | 24/7 | Overall |
| 2 | Unlimited Solutions | 57 | 5.0★ (30) | Longmont | Sat · Evenings | — |
| 3 | EcoShield Pest Solutions | 57 | 4.7★ (4,537) | Longmont | Sat | Most reviews |
| 4 | Apex Group | 57 | 4.9★ (29) | Longmont | Sat · Evenings | — |
| 5 | PolarPak Foam | 56 | 4.3★ (10) | Longmont | Sat · Sun | — |
| 6 | Trust Us Insulation LLC | 56 | 4.9★ (13) | Longmont | Sat | — |
| 7 | Koala Insulation of NoCo | 55 | 5.0★ (203) | Loveland, 15 mi away | — | — |
| 8 | Insulation Pros of Colorado | 55 | 4.8★ (37) | Thornton, 22 mi away | 24/7 | Emergencies |
| 9 | Morales insulators L.L.C | 55 | 5.0★ (9) | Evans, 7 mi away | Sat · Sun | — |
| 10 | One Hour Heating & Air Conditioning® of Denver | 55 | 4.7★ (1,623) | Westminster, 18 mi away | 24/7 | — |
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
Ranked #2 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Insulation contractor”.
Based in Longmont
Ranked #3 because of its Google rating and review volume: 4.7★ from 4,537 Google reviews, the most in Longmont.
Based in Longmont
Ranked #4 because of its Google rating and trade focus: 4.9★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based in Longmont
Ranked #5 because of its Google rating and trade focus: 4.3★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based in Longmont
Ranked #6 because of its Google rating and trade focus: 4.9★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based in Loveland, 15 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 203 Google reviews, listed on Google as “Insulation contractor”.
Based in Thornton, 22 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 37 Google reviews, listed on Google as “Insulation contractor”.
Based in Evans, 7 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based in Westminster, 18 mi away
Ranked #10 because of its Google rating and review volume: 4.7★ from 1,623 Google reviews.
Based in Lafayette, 13 mi away
Ranked #11 because of its Google rating and trade focus: 4.6★ from 64 Google reviews, listed on Google as “Insulation contractor”.
Based in Boulder, 12 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 71 Google reviews, listed on Google as “Insulation contractor”.
Based in Loveland, 15 mi away
Ranked #13 because of its Google rating and trade focus: 3.9★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based in Thornton, 20 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 67 Google reviews, listed on Google as “Insulation contractor”.
Based in Boulder, 12 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 92 Google reviews, listed on Google as “Insulation contractor”.
Based in Longmont
Ranked #16 because of its Google rating and review volume: 4.9★ from 124 Google reviews.
Based in Fort Collins, 12 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 44 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 Loveland, 20 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 39 Google reviews, listed on Google as “Insulation contractor”.
Based in Frederick, 10 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 in Loveland, 16 mi away
Ranked #21 because of its Google rating and review volume: 4.8★ from 128 Google reviews.
Based in Loveland, 16 mi away
Ranked #22 because of its Google rating and trade focus: 4.1★ from 8 Google reviews, listed on Google as “Insulation contractor”.
Based in Boulder, 10 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 16 Google reviews, listed on Google as “Insulation contractor”.
Based in Thornton, 19 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Roofing contractor”.
Based in Thornton, 22 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 17 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 66 ranked insulation contractors here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Spraylogic | 51 | 5.0★ (10) | 19 mi |
| 27 | Westminster Spray Foam Insulation Specialist | 50 | 5.0★ (6) | 23 mi |
| 28 | Colorado Insulation Experts | 50 | 5.0★ (23) | 17 mi |
| 29 | Arvada Insulation | 50 | 5.0★ (19) | 25 mi |
| 30 | JCJ Llc | 50 | 5.0★ (13) | 22 mi |
| 31 | Efficiency Matters | 50 | 4.7★ (11) | 12 mi |
| 32 | 5280 Insulation S Corp | 50 | 5.0★ (13) | 23 mi |
| 33 | Intel Spray Foam | 50 | 5.0★ (6) | 11 mi |
| 34 | AFGH Handyman Services,LLC | 50 | 4.9★ (35) | 12 mi |
| 35 | Rocky Mountain Insulators | 50 | 4.8★ (16) | 18 mi |
| 36 | Juan’s Insulation LLC | 49 | 5.0★ (9) | 23 mi |
| 37 | OTS Insulation LLC. | 49 | 5.0★ (7) | 22 mi |
| 38 | JD | 49 | 5.0★ (5) | 21 mi |
| 39 | AA Insulation, LLC | 49 | 4.4★ (7) | 21 mi |
| 40 | Sandoval llc | 49 | 5.0★ (9) | 25 mi |
| 41 | HandyMan of Boulder | 49 | 5.0★ (38) | 3 mi |
| 42 | Two Brothers Painting | 49 | 4.9★ (23) | 13 mi |
| 43 | Roof Worx | 49 | 4.9★ (400) | 18 mi |
| 44 | Nordic Construction Company | 48 | 5.0★ (34) | 25 mi |
| 45 | EcoTru Spray Foam Insulation | 48 | 5.0★ (4) | 23 mi |
| 46 | Allied Insulation | 48 | 3.5★ (21) | 16 mi |
| 47 | Quality Insulation Solutions LLC | 48 | 5.0★ (4) | 19 mi |
| 48 | Rolling Plains Construction | 48 | 4.0★ (29) | 22 mi |
| 49 | Front Range Insulation, Inc. | 47 | 2.0★ (5) | 22 mi |
| 50 | Roberts Drywall & Repair Services | 47 | 3.9★ (15) | 23 mi |
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) | 21 mi |
| All Seasons Foam | 5.0★ (2) | 21 mi |
| Bedrock Granite LLC | 4.9★ (22) | In Longmont |
| Black Hole Insulation | In Longmont | |
| Blue Sky Home and Lawn | In Longmont | |
| Carroll Mechanical Services | 4.8★ (77) | In Longmont |
| Classic Industrial Services Inc | 3.5★ (2) | 15 mi |
| CP Carpentry LLC | 5.0★ (44) | In Longmont |
| DAVID’S CONSTRUCTION LLC | In Longmont | |
| Eco Wall Systems LLC | 5.0★ (2) | 18 mi |
| EcoTru Spray Foam Insulation | In Longmont | |
| Elite Insulation Contractors Westminster | 5.0★ (2) | 22 mi |
| Foam Connection | 5.0★ (1) | In Longmont |
| High Mountain Sprayfoam, LLC. | 5.0★ (2) | 11 mi |
| Longmont Roofing Windsor | 1.0★ (1) | In Longmont |
| Longmont Water Heaters | 5.0★ (191) | In Longmont |
| Probywall LLC Drywall and Insulation | 3.0★ (2) | 21 mi |
| Randy's Drywall Services LLC | 5.0★ (2) | In Longmont |
| Tyler Garage Doors & Repair | 5.0★ (22) | In Longmont |
| Welzig Heating, Air, Plumbing & Electric | 4.9★ (1,269) | 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 |
|---|---|---|---|---|---|
| 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 66 Longmont 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 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 |