273 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Westmont: HomeShield Pest Control, CR Score 89/100; 5.0★ from 2,945 Google reviews; open Saturdays until 5 PM.
Best for emergencies (open 24/7): Los Angeles Insulation Masters, posts 24/7 hours; ranked #3 of 273.
Most-reviewed: All City Animal Trapping, 732 Google reviews at 4.9★, the most of 273 ranked after HomeShield Pest Control; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
273 Westmont insulation contractors are ranked here by CR Score, from 8 published factors. 42 are open 24/7, 196 open Saturdays and 175 open Sundays, based on posted hours. The median Google rating is 5.0★ across 273 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | HomeShield Pest Control | 89 | 5.0★ (2,945) | Los Angeles, 8 mi away | Sat · Evenings | Overall |
| 2 | All City Animal Trapping | 88 | 4.9★ (732) | Carson, 11 mi away | Sat · Sun · Evenings | Most reviews |
| 3 | Los Angeles Insulation Masters | 86 | 4.8★ (48) | Los Angeles, 6 mi away | 24/7 | Emergencies |
| 4 | Express Service | 86 | 4.8★ (64) | Beverly Hills, 8 mi away | 24/7 | — |
| 5 | USA Spray Me Spray Foam Insulation Contractor | 86 | 5.0★ (10) | Los Angeles, 5 mi away | 24/7 | — |
| 6 | The Attic Insulation Specialists, Inc | 86 | 5.0★ (136) | Los Angeles, 12 mi away | Sat · Sun · Evenings | — |
| 7 | Beverly Hills Services | 85 | 4.8★ (61) | Beverly Hills, 10 mi away | 24/7 | — |
| 8 | My Air Duct Cleaning | 85 | 5.0★ (59) | Bell, 7 mi away | Sat · Sun · Evenings | — |
| 9 | Insulation Experts Services | 85 | 4.9★ (67) | Beverly Hills, 7 mi away | Sat · Sun | — |
| 10 | Premiere | 85 | 5.0★ (7) | Culver City, 6 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and review volume: 5.0★ from 2,945 Google reviews, the most Google reviews on this list (2,945).
Based in Carson, 11 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 732 Google reviews, listed on Google as “Insulation contractor”.
Based in Los Angeles, 6 mi away
Ranked #3 because of its Google rating and availability: 4.8★ from 48 Google reviews, open 24/7.
Based in Beverly Hills, 8 mi away
Ranked #4 because of its Google rating and availability: 4.8★ from 64 Google reviews, open 24/7.
Based in Los Angeles, 5 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 24/7.
Based in Los Angeles, 12 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 136 Google reviews, listed on Google as “Insulation contractor”.
Based in Beverly Hills, 10 mi away
Ranked #7 because of its Google rating and availability: 4.8★ from 61 Google reviews, open 24/7.
Based in Bell, 7 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 59 Google reviews, listed on Google as “Insulation contractor”.
Based in Beverly Hills, 7 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 67 Google reviews, listed on Google as “Insulation contractor”.
Based in Culver City, 6 mi away
Ranked #10 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.
Based in Hawthorne, 2 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based in Los Angeles, 8 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 71 Google reviews, listed on Google as “Insulation contractor”.
Based in Carson, 8 mi away
Ranked #13 because of its Google rating and availability: 5.0★ from 8 Google reviews, open 24/7.
Based in Compton, 6 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Insulation contractor”.
Based in Sherman Oaks, 18 mi away
Ranked #15 because of its Google rating and availability: 4.8★ from 48 Google reviews, open 24/7.
Based in Canoga Park, 19 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 335 Google reviews, listed on Google as “Insulation contractor”.
Based in Van Nuys, 21 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 413 Google reviews, listed on Google as “Insulation contractor”.
Based in Artesia, 14 mi away
Ranked #18 because of its Google rating and availability: 4.8★ from 51 Google reviews, open 24/7.
Based in Van Nuys, 18 mi away
Ranked #19 because of its Google rating and availability: 5.0★ from 27 Google reviews, open 24/7.
Based in Encino, 9 mi away
Ranked #20 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.
Based in Hawthorne, 5 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based in Compton, 6 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based in Beverly Hills, 8 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 80 Google reviews, listed on Google as “Insulation contractor”.
Based in Los Angeles, 10 mi away
Ranked #24 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
Based in Calabasas, 21 mi away
Ranked #25 because of its Google rating and availability: 4.9★ from 30 Google reviews, open 24/7.
#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 273 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 |
|---|---|---|
| AAA Roofing and Insulation Services | 5.0★ (2) | 8 mi |
| AZ Sandblasting | 5.0★ (1) | 4 mi |
| Bob Mezzo Plastering | 5.0★ (2) | 23 mi |
| CM Painting | 5.0★ (2) | 21 mi |
| Contractor Monrovia Redzone | 5.0★ (2) | 22 mi |
| Control | 5.0★ (2) | 20 mi |
| Image General Construction | 5.0★ (2) | 11 mi |
| Leos Insulation | 5.0★ (2) | 24 mi |
| Master Insulation & AC | 5.0★ (2) | 8 mi |
| NDM Insulation | 5.0★ (2) | 20 mi |
| Pure Eco Insulation | 5.0★ (2) | 13 mi |
| QUALITY FOAM | 5.0★ (2) | 23 mi |
| Smart Budget Insulation of Burbank | 3.0★ (2) | 16 mi |
| Smart Value Insulation | 5.0★ (2) | 20 mi |
| South Gate Insulation Pros | 5.0★ (2) | 8 mi |
| The Insulation Experts | 5.0★ (2) | 10 mi |
| Titan Insulation - Pasadena | 5.0★ (2) | 17 mi |
| Unique Painting and Decorating | 5.0★ (2) | 21 mi |
| Vasitos Construction | 5.0★ (2) | 22 mi |
| Western Industrial Ceramics | 5.0★ (2) | 14 mi |
National price ranges in USD, not adjusted for Westmont. 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 273 Westmont insulation contractors on 8 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. Unknown factors are left out of the score, 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 Westmont data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |