135 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in San Lorenzo: Attic Pros, CR Score 65/100; 4.8★ from 1,938 Google reviews; open 24/7.
Best for emergencies (open 24/7): Pro Attic Restoration, posts 24/7 hours; ranked #6 of 135.
Most-reviewed: Service Champions, 5,220 Google reviews at 4.9★, the most of 135 ranked; ranked #21.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
135 San Lorenzo insulation contractors are ranked here by CR Score, from ten published factors. 41 are open 24/7, 92 open Saturdays and 80 open Sundays, based on posted hours. The median Google rating is 4.9★ across 135 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Attic Pros | 65 | 4.8★ (1,938) | Oakland, 5 mi away | 24/7 | Overall |
| 2 | Atticare USA | 62 | 4.8★ (439) | San Leandro, 3 mi away | Sat · Sun · Evenings | — |
| 3 | American Attic | 61 | 5.0★ (219) | Oakland, 5 mi away | Sat · Sun | — |
| 4 | EcoGuard Pest Management | 61 | 4.9★ (279) | Dublin, 5 mi away | Sat · Sun · Evenings | — |
| 5 | Rywen Insulation Inc. | 61 | 5.0★ (151) | San Leandro, 5 mi away | Sat · Sun | — |
| 6 | Pro Attic Restoration | 61 | 4.9★ (48) | Hayward, 3 mi away | 24/7 | Emergencies |
| 7 | Alamo Attic Insulation Pro | 59 | 4.9★ (94) | Alamo, 13 mi away | 24/7 | — |
| 8 | Attic Elite | 59 | 4.9★ (474) | Newark, 11 mi away | Sun | — |
| 9 | Alley Cat - Rodent Exclusion Company | 59 | 4.9★ (413) | San Francisco, 17 mi away | Sat · Sun · Evenings | — |
| 10 | Reactic Restoration | 58 | 4.7★ (31) | Oakland, 9 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 San Leandro, 3 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 439 Google reviews, listed on Google as “Insulation contractor”.
Based in Oakland, 5 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 219 Google reviews, listed on Google as “Insulation contractor”.
Based in Dublin, 5 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 279 Google reviews, listed on Google as “Insulation contractor”.
Based in San Leandro, 5 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 151 Google reviews, listed on Google as “Insulation contractor”.
Based in Hayward, 3 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 48 Google reviews, listed on Google as “Insulation contractor”.
Based in Alamo, 13 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 94 Google reviews, listed on Google as “Insulation contractor”.
Based in Newark, 11 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 474 Google reviews, listed on Google as “Insulation contractor”.
Based in San Francisco, 17 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 413 Google reviews, listed on Google as “Insulation contractor”.
Based in Oakland, 9 mi away
Ranked #10 because of its Google rating and trade focus: 4.7★ from 31 Google reviews, listed on Google as “Insulation contractor”.
Based in Redwood City, 15 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 156 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley, 14 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 1,071 Google reviews, listed on Google as “Insulation contractor”.
Based in Walnut Creek, 16 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 Pleasanton, 11 mi away
Ranked #14 because of its Google rating and review volume: 4.8★ from 2,337 Google reviews.
Based in Livermore, 18 mi away
Ranked #15 because of its Google rating and review volume: 4.9★ from 4,721 Google reviews.
Based in Alameda, 21 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 76 Google reviews, listed on Google as “Insulation contractor”.
Based in Fremont, 11 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Insulation contractor”.
Based in Concord, 22 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 1,198 Google reviews, listed on Google as “Insulation contractor”.
Based in Alameda, 11 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 39 Google reviews, listed on Google as “Insulation contractor”.
Based in Pleasanton, 12 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 89 Google reviews, listed on Google as “Insulation contractor”.
Based in Martinez, 23 mi away
Ranked #21 because of its Google rating and review volume: 4.9★ from 5,220 Google reviews, the most in San Lorenzo.
Based in San Leandro, 5 mi away
Ranked #22 because of its Google rating and trade focus: 4.1★ from 78 Google reviews, listed on Google as “Insulation contractor”.
Based in Alameda, 8 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 18 Google reviews, listed on Google as “Insulation contractor”.
Based in San Mateo, 13 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based in San Carlos, 14 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 12 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 135 ranked insulation contractors here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Reactic Restoration | 56 | 5.0★ (57) | 24 mi |
| 27 | AJ Heating & Cooling Inc. | 56 | 5.0★ (32) | 7 mi |
| 28 | Service Champions | 56 | 4.9★ (1,331) | 18 mi |
| 29 | Service Champions | 56 | 4.9★ (3,407) | 23 mi |
| 30 | Reactic Restoration | 55 | 5.0★ (16) | 18 mi |
| 31 | Vortex Insulation | 55 | 5.0★ (47) | 5 mi |
| 32 | Bears Restoration | 55 | 4.7★ (14) | 16 mi |
| 33 | Reactic Restoration | 55 | 5.0★ (11) | 15 mi |
| 34 | Insulation Labs | 55 | 5.0★ (6) | 6 mi |
| 35 | Trap Guard | 55 | 5.0★ (13) | 19 mi |
| 36 | ATTIC RENEW 360 | 55 | 4.8★ (32) | 10 mi |
| 37 | Attic Repair Guys | 55 | 5.0★ (23) | 16 mi |
| 38 | All State Insulation | 55 | 5.0★ (25) | 11 mi |
| 39 | Johnson's Insulation | 55 | 4.8★ (38) | 12 mi |
| 40 | Richmond Insulation Pros | 54 | 5.0★ (4) | 14 mi |
| 41 | Delta Spray Foam Insulation | 54 | 5.0★ (34) | 20 mi |
| 42 | Patriots Restoration | 54 | 5.0★ (6) | 9 mi |
| 43 | 911 Attic Insulation | 54 | 5.0★ (19) | 23 mi |
| 44 | Element Home Solutions | 54 | 4.9★ (360) | 2 mi |
| 45 | The Bay Area Insulation | 54 | 5.0★ (9) | 13 mi |
| 46 | INSULATION ALLIANCE | 54 | 5.0★ (33) | 14 mi |
| 47 | Next Edge Insulation | 54 | 5.0★ (3) | 14 mi |
| 48 | USA Spray Me Spray Foam Insulation Contractor | 54 | 4.9★ (54) | 17 mi |
| 49 | Dr Drywall | Drywall Repair | 54 | 5.0★ (38) | 17 mi |
| 50 | Fire Damage Squad | 54 | 4.6★ (5) | 16 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 |
|---|---|---|
| Airseal Inc | 3.0★ (2) | 23 mi |
| Attic Bros of Milpitas | 5.0★ (2) | 22 mi |
| Attic Solutions | 3.0★ (2) | 17 mi |
| Attic Wise Cleaning | 5.0★ (2) | 20 mi |
| Bear Insulation and Services | 5.0★ (2) | 19 mi |
| Brandon's Attic Control | 5.0★ (2) | 9 mi |
| Brick & Hammer | 5.0★ (2) | 17 mi |
| Canyon Insulation Inc | 5.0★ (2) | 22 mi |
| Emerald Insulation & Acoustical Inc. | 5.0★ (2) | 17 mi |
| Insulation & Air Duct Crew | 5.0★ (2) | 3 mi |
| My Steam Rug & Sofa Cleaning | 5.0★ (2) | 18 mi |
| Panda Heating & Cooling | 3.5★ (2) | 5 mi |
| Peak Core Insulation | 5.0★ (2) | 12 mi |
| Performance Contracting Inc | 1.0★ (2) | 23 mi |
| Prime Air Duct Cleaning | 5.0★ (2) | 23 mi |
| PRO ATTIC RESTORATION | 5.0★ (2) | 3 mi |
| Quality Pro Guard | 1.0★ (2) | 23 mi |
| Santa Clara A+ Insulation Service | 5.0★ (2) | 23 mi |
| Soundproofing Remodelers San Francisco Bay Area | 5.0★ (2) | 21 mi |
| Zitro Acoustics | 5.0★ (1) | 2 mi |
National price ranges in USD, not adjusted for San Lorenzo. 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 135 San Lorenzo 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 San Lorenzo 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 |