208 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Altadena: HomeShield Pest Control, CR Score 61/100; 5.0★ from 2,945 Google reviews; open Saturdays until 5 PM.
Best for emergencies (open 24/7): UltraSpan Insulation, posts 24/7 hours; ranked #2 of 208.
Most-reviewed: NexGen HVAC & Plumbing, 538 Google reviews at 4.7★, the most of 208 ranked after HomeShield Pest Control; ranked #46.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
208 Altadena insulation contractors are ranked here by CR Score, from ten published factors. 36 are open 24/7, 147 open Saturdays and 133 open Sundays, based on posted hours. The median Google rating is 5.0★ across 208 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | HomeShield Pest Control | 61 | 5.0★ (2,945) | Los Angeles, 18 mi away | Sat · Evenings | Overall |
| 2 | UltraSpan Insulation | 60 | 4.9★ (20) | Pasadena, 3 mi away | 24/7 | Emergencies |
| 3 | Attic Rescue Insulation Contractor | 59 | 4.9★ (78) | Castaic, 15 mi away | 24/7 | — |
| 4 | Prime Climate Insulation Contractor | 59 | 4.9★ (15) | Los Angeles, 6 mi away | 24/7 | — |
| 5 | Insulation Labs | 58 | 4.9★ (413) | Van Nuys, 20 mi away | Sat · Sun · Evenings | — |
| 6 | JM Drywall Pro, Inc. | 58 | 5.0★ (4) | Altadena | 24/7 | — |
| 7 | Home Insulation Arcadia | 58 | 5.0★ (11) | Altadena | Sat · Sun · Evenings | — |
| 8 | Attic Projects | 58 | 5.0★ (46) | Glendale, 9 mi away | Sat · Sun | — |
| 9 | Los Angeles Insulation Masters | 58 | 4.8★ (48) | Los Angeles, 14 mi away | 24/7 | — |
| 10 | Brad's Insulation | 58 | 4.9★ (94) | Azusa, 13 mi away | Sat · Sun · Evenings | — |
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 review volume: 5.0★ from 2,945 Google reviews, the most in Altadena.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pasadena, 3 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Castaic, 15 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 78 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Los Angeles, 6 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 15 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Van Nuys, 20 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 413 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Altadena
Ranked #6 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Altadena
Ranked #7 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Glendale, 9 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Los Angeles, 14 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 48 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Azusa, 13 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 94 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Los Angeles, 12 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 97 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Burbank, 10 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 60 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arcadia, 7 mi away
Ranked #13 because of its Google rating and trade focus: 4.7★ from 35 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Beverly Hills, 17 mi away
Ranked #14 because of its Google rating and trade focus: 4.8★ from 61 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rosemead, 8 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Los Angeles, 10 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Los Angeles, 20 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 136 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Silver Lake, 6 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Beverly Hills, 20 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 64 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alhambra, 7 mi away
Ranked #20 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Burbank, 7 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Arcadia, 7 mi away
Ranked #22 because of its Google rating and trade focus: 4.7★ from 53 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Los Angeles, 9 mi away
Ranked #23 because of its Google rating and review volume: 4.9★ from 434 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alhambra, 7 mi away
Ranked #24 because of its Google rating and trade focus: 4.6★ from 26 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sherman Oaks, 19 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 48 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 208 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) | 20 mi |
| Attic Squad Insulation | 5.0★ (1) | In Altadena |
| Cɑѕсɑdе Attiс Inѕulɑtiοn | 5.0★ (1) | 3 mi |
| Contracting Solutions | 5.0★ (1) | In Altadena |
| Contractor Monrovia Redzone | 5.0★ (2) | 8 mi |
| Control | 5.0★ (2) | 18 mi |
| Kiko's insulation corporation | 5.0★ (2) | 20 mi |
| Leos Insulation | 5.0★ (2) | 16 mi |
| Lone Star | 5.0★ (2) | 20 mi |
| Master Insulation & AC | 5.0★ (2) | 20 mi |
| QUALITY FOAM | 5.0★ (2) | 12 mi |
| Semper fi Handyman | 2.5★ (2) | 25 mi |
| Smart Budget Insulation of Burbank | 3.0★ (2) | 10 mi |
| Smart Value Insulation | 5.0★ (2) | 11 mi |
| South Gate Insulation Pros | 5.0★ (2) | 17 mi |
| SuperGreen Insulation | 3.0★ (2) | 24 mi |
| The Insulation Experts | 5.0★ (2) | 16 mi |
| Titan Insulation - Pasadena | 5.0★ (2) | 3 mi |
| Vasitos Construction | 5.0★ (2) | 15 mi |
| Western Industrial Ceramics | 5.0★ (2) | 18 mi |
National price ranges in USD, not adjusted for Altadena. 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 208 Altadena 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 Altadena 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 |