346 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Los Angeles: HomeShield Pest Control, CR Score 91/100; 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 346.
Most-reviewed: All City Animal Trapping, 732 Google reviews at 4.9★, the most of 346 ranked after HomeShield Pest Control; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
346 Los Angeles insulation contractors are ranked here by CR Score, from 8 published factors. 48 are open 24/7, 258 open Saturdays and 221 open Sundays, based on posted hours. The median Google rating is 5.0★ across 346 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | HomeShield Pest Control | 91 | 5.0★ (2,945) | Los Angeles | Sat · Evenings | Overall |
| 2 | The Attic Insulation Specialists, Inc | 88 | 5.0★ (136) | Los Angeles | Sat · Sun · Evenings | — |
| 3 | Los Angeles Insulation Masters | 87 | 4.8★ (48) | Los Angeles | 24/7 | Emergencies |
| 4 | Precise Air Systems Inc. | 87 | 4.9★ (434) | Los Angeles | 24/7 | — |
| 5 | USA Spray Me Spray Foam Insulation Contractor | 86 | 5.0★ (10) | Los Angeles | 24/7 | — |
| 6 | Insulation Labs | 86 | 4.9★ (71) | Los Angeles | Sat · Sun · Evenings | — |
| 7 | All City Animal Trapping | 86 | 4.9★ (732) | Carson, 18 mi away | Sat · Sun · Evenings | Most reviews |
| 8 | Prime Climate Insulation Contractor | 86 | 4.9★ (15) | Los Angeles | 24/7 | — |
| 9 | Pacific Shield Insulation | 85 | 4.9★ (13) | Los Angeles | 24/7 | — |
| 10 | Pryvon Tune Greenline Insulation | 85 | 5.0★ (5) | Los Angeles | 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 Los Angeles
Ranked #2 because of its Google rating and trade focus: 5.0★ from 136 Google reviews, listed on Google as “Insulation contractor”.
Based in Los Angeles
Ranked #3 because of its Google rating and availability: 4.8★ from 48 Google reviews, open 24/7.
Based in Los Angeles
Ranked #4 because of its Google rating and availability: 4.9★ from 434 Google reviews, open 24/7.
Based in Los Angeles
Ranked #5 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 24/7.
Based in Los Angeles
Ranked #6 because of its Google rating and trade focus: 4.9★ from 71 Google reviews, listed on Google as “Insulation contractor”.
Based in Carson, 18 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 732 Google reviews, listed on Google as “Insulation contractor”.
Based in Los Angeles
Ranked #8 because of its Google rating and availability: 4.9★ from 15 Google reviews, open 24/7.
Based in Los Angeles
Ranked #9 because of its Google rating and availability: 4.9★ from 13 Google reviews, open 24/7.
Based in Los Angeles
Ranked #10 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
Based in Beverly Hills, 9 mi away
Ranked #11 because of its Google rating and availability: 4.8★ from 61 Google reviews, open 24/7.
Based in Beverly Hills, 10 mi away
Ranked #12 because of its Google rating and availability: 4.8★ from 64 Google reviews, open 24/7.
Based in Los Angeles
Ranked #13 because of its Google rating and trade focus: 4.8★ from 97 Google reviews, listed on Google as “Insulation contractor”.
Based in Van Nuys, 17 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 413 Google reviews, listed on Google as “Insulation contractor”.
Based in Los Angeles
Ranked #15 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
Based in Los Angeles
Ranked #16 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based in Sherman Oaks, 15 mi away
Ranked #17 because of its Google rating and availability: 4.8★ from 48 Google reviews, open 24/7.
Based in Van Nuys, 15 mi away
Ranked #18 because of its Google rating and availability: 5.0★ from 27 Google reviews, open 24/7.
Based in Beverly Hills, 7 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 67 Google reviews, listed on Google as “Insulation contractor”.
Based in Los Angeles
Ranked #20 because of its Google rating and availability: 4.8★ from 17 Google reviews, open 24/7.
Based in Bell, 9 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 59 Google reviews, listed on Google as “Insulation contractor”.
Based in Canoga Park, 20 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 335 Google reviews, listed on Google as “Insulation contractor”.
Based in Castaic, 23 mi away
Ranked #23 because of its Google rating and availability: 4.9★ from 78 Google reviews, open 24/7.
Based in Hollywood, 7 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “Insulation contractor”.
Based in Los Angeles
Ranked #25 because of its Google rating and trade focus: 5.0★ from 15 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 346 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.
National price ranges in USD, not adjusted for Los Angeles. 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 346 Los Angeles 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 Los Angeles 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 |