102 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Berkeley: Attic Pros, CR Score 63/100; 4.8★ from 1,938 Google reviews; open 24/7.
Best for emergencies (open 24/7): Attic Cleaning Services LLC, posts 24/7 hours; ranked #4 of 102.
Most-reviewed: Service Champions, 5,220 Google reviews at 4.9★, the most of 102 ranked; ranked #15.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
102 Berkeley insulation contractors are ranked here by CR Score, from ten published factors. 30 are open 24/7, 70 open Saturdays and 55 open Sundays, based on posted hours. The median Google rating is 4.9★ across 102 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Attic Pros | 63 | 4.8★ (1,938) | Oakland, 11 mi away | 24/7 | Overall |
| 2 | Alley Cat | 61 | 4.9★ (1,071) | Berkeley | Evenings | — |
| 3 | Alley Cat - Rodent Exclusion Company | 60 | 4.9★ (413) | San Francisco, 10 mi away | Sat · Sun · Evenings | — |
| 4 | Attic Cleaning Services LLC | 60 | 4.9★ (76) | Alameda, 8 mi away | 24/7 | Emergencies |
| 5 | Reactic Restoration | 60 | 5.0★ (57) | Richmond, 9 mi away | 24/7 | — |
| 6 | American Attic | 60 | 5.0★ (219) | Oakland, 11 mi away | Sat · Sun | — |
| 7 | Atticare USA | 59 | 4.8★ (439) | San Leandro, 12 mi away | Sat · Sun · Evenings | — |
| 8 | Bears Restoration | 59 | 4.7★ (14) | Berkeley | 24/7 | — |
| 9 | Rywen Insulation Inc. | 59 | 5.0★ (151) | San Leandro, 11 mi away | Sat · Sun | — |
| 10 | Alamo Attic Insulation Pro | 59 | 4.9★ (94) | Alamo, 13 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 1,938 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley
Ranked #2 because of its Google rating and trade focus: 4.9★ from 1,071 Google reviews, listed on Google as “Insulation contractor”.
Based in San Francisco, 10 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 413 Google reviews, listed on Google as “Insulation contractor”.
Based in Alameda, 8 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 76 Google reviews, listed on Google as “Insulation contractor”.
Based in Richmond, 9 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “Insulation contractor”.
Based in Oakland, 11 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 219 Google reviews, listed on Google as “Insulation contractor”.
Based in San Leandro, 12 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 439 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley
Ranked #8 because of its Google rating and trade focus: 4.7★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based in San Leandro, 11 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 151 Google reviews, listed on Google as “Insulation contractor”.
Based in Alamo, 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 in Dublin, 14 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 279 Google reviews, listed on Google as “Insulation contractor”.
Based in Concord, 14 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 1,198 Google reviews, listed on Google as “Insulation contractor”.
Based in Walnut Creek, 12 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Insulation contractor”.
Based in Oakland, 7 mi away
Ranked #14 because of its Google rating and trade focus: 4.7★ from 31 Google reviews, listed on Google as “Insulation contractor”.
Based in Martinez, 14 mi away
Ranked #15 because of its Google rating and review volume: 4.9★ from 5,220 Google reviews, the most in Berkeley.
Based in Berkeley
Ranked #16 because of its Google rating and trade focus: 4.6★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley
Ranked #17 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based in Antelope, 2 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley
Ranked #19 because of its Google rating and trade focus: 3.4★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based in Hayward, 17 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 48 Google reviews, listed on Google as “Insulation contractor”.
Based in San Francisco, 6 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Insulation contractor”.
Based in Richmond, 7 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Insulation contractor”.
Based in Albany, 1 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based in Oakland, 5 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 38 Google reviews, listed on Google as “Insulation contractor”.
Based in Fremont, 8 mi away
Ranked #25 because of its Google rating and trade focus: 4.7★ from 23 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 102 ranked insulation contractors here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Rodent Exclusion Pro Oakland, CA | 56 | 4.8★ (18) | 8 mi |
| 27 | Trioteam | 56 | 4.8★ (24) | 3 mi |
| 28 | INSULATION ALLIANCE | 56 | 5.0★ (33) | 8 mi |
| 29 | 911 Attic | 55 | 5.0★ (3) | 8 mi |
| 30 | Mr Attic | 55 | 4.7★ (23) | 12 mi |
| 31 | Juniper Insulation | 55 | 5.0★ (32) | 10 mi |
| 32 | Tiburon Attic Insulation | 55 | 4.4★ (10) | 13 mi |
| 33 | Oakland Spray Foam Insulation | 55 | 5.0★ (50) | 7 mi |
| 34 | Freschi Service Experts | 55 | 4.8★ (1,046) | 16 mi |
| 35 | JM Insulation Inc. | 55 | 5.0★ (6) | 8 mi |
| 36 | Attic Perfect | 55 | 4.1★ (78) | 11 mi |
| 37 | Service Champions | 54 | 4.8★ (2,337) | 23 mi |
| 38 | Insulation Solutions | 54 | 5.0★ (29) | 12 mi |
| 39 | Eco Attic Systems | 54 | 4.8★ (49) | 14 mi |
| 40 | All Seasons Insulation | 54 | 5.0★ (82) | 13 mi |
| 41 | Exanders Insulation | 54 | 5.0★ (3) | 3 mi |
| 42 | Insulation Solutions | 54 | 5.0★ (11) | 22 mi |
| 43 | Attic Solutions - Rodent Proofing & Insulation Services | 53 | 4.8★ (39) | 23 mi |
| 44 | Attic Kings | 53 | 5.0★ (26) | 17 mi |
| 45 | Reactic Restoration | 53 | 5.0★ (12) | 25 mi |
| 46 | SOS Restoration | 53 | 5.0★ (3) | 17 mi |
| 47 | Reactic Restoration | 53 | 4.7★ (10) | 23 mi |
| 48 | Daly City Restoration | 53 | 4.0★ (4) | 18 mi |
| 49 | Attic Aid - Rodent Proofing & Insulation | 53 | 5.0★ (3) | 13 mi |
| 50 | Reactic Restoration | 53 | 4.9★ (63) | 11 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 |
|---|---|---|
| 1-888-Heat-Pumps | 5.0★ (45) | In Berkeley |
| Adams Field Services LLC. | 3.0★ (2) | 22 mi |
| Airseal Inc | 3.0★ (2) | 12 mi |
| Attic Solutions | 3.0★ (2) | 16 mi |
| Brandon's Attic Control | 5.0★ (2) | 7 mi |
| Brick & Hammer | 5.0★ (2) | 11 mi |
| BuildMark, Inc. | 5.0★ (46) | In Berkeley |
| CA Bear Construction | 4.9★ (36) | In Berkeley |
| Emerald Insulation & Acoustical Inc. | 5.0★ (2) | 11 mi |
| Golden Restore inc Berkeley | 1.0★ (1) | In Berkeley |
| Insulation & Air Duct Crew | 5.0★ (2) | 18 mi |
| Panda Heating & Cooling | 3.5★ (2) | 11 mi |
| Peak Core Insulation | 5.0★ (2) | 4 mi |
| Performance Contracting Inc | 1.0★ (1) | 7 mi |
| Petrochem Insulation Inc | 1.0★ (2) | 16 mi |
| PRO ATTIC RESTORATION | 5.0★ (2) | 17 mi |
| Protek Cargo | 5.0★ (2) | 24 mi |
| Quality Pro Guard | 1.0★ (2) | 12 mi |
| Rising Design & Construction | 3.0★ (2) | 25 mi |
| Soundproofing Remodelers San Francisco Bay Area | 5.0★ (2) | 14 mi |
National price ranges in USD, not adjusted for Berkeley. 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 102 Berkeley 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 Berkeley 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 |