87 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Hercules: Attic Pros, CR Score 61/100; 4.8★ from 1,938 Google reviews; open 24/7.
Best for emergencies (open 24/7): Reactic Restoration, posts 24/7 hours; ranked #2 of 87.
Most-reviewed: Service Champions, 5,220 Google reviews at 4.9★, the most of 87 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
87 Hercules insulation contractors are ranked here by CR Score, from ten published factors. 24 are open 24/7, 55 open Saturdays and 43 open Sundays, based on posted hours. The median Google rating is 4.9★ across 87 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Attic Pros | 61 | 4.8★ (1,938) | Oakland, 20 mi away | 24/7 | Overall |
| 2 | Reactic Restoration | 61 | 5.0★ (57) | Richmond, 3 mi away | 24/7 | Emergencies |
| 3 | Service Champions | 59 | 4.9★ (5,220) | Martinez, 11 mi away | 24/7 | Most reviews |
| 4 | EcoGuard Pest Management | 59 | 4.8★ (1,198) | Concord, 12 mi away | Sat | — |
| 5 | Attic Cleaning Services LLC | 59 | 4.9★ (76) | Alameda, 12 mi away | 24/7 | — |
| 6 | Alley Cat - Rodent Exclusion Company | 58 | 4.9★ (413) | San Francisco, 18 mi away | Sat · Sun · Evenings | — |
| 7 | Alley Cat | 58 | 4.9★ (1,071) | Berkeley, 11 mi away | Evenings | — |
| 8 | Miller Attics | 58 | 5.0★ (46) | Walnut Creek, 15 mi away | 24/7 | — |
| 9 | Alamo Attic Insulation Pro | 58 | 4.9★ (94) | Alamo, 18 mi away | 24/7 | — |
| 10 | American Attic | 57 | 5.0★ (219) | Oakland, 20 mi away | Sat · Sun | — |
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 Richmond, 3 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “Insulation contractor”.
Based in Martinez, 11 mi away
Ranked #3 because of its Google rating and review volume: 4.9★ from 5,220 Google reviews, the most in Hercules.
Based in Concord, 12 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 1,198 Google reviews, listed on Google as “Insulation contractor”.
Based in Alameda, 12 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 76 Google reviews, listed on Google as “Insulation contractor”.
Based in San Francisco, 18 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 413 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley, 11 mi away
Ranked #7 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, 15 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 in Alamo, 18 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 94 Google reviews, listed on Google as “Insulation contractor”.
Based in Oakland, 20 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 219 Google reviews, listed on Google as “Insulation contractor”.
Based in San Leandro, 22 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 439 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley, 10 mi away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based in Dublin, 23 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 279 Google reviews, listed on Google as “Insulation contractor”.
Based in Richmond, 6 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Insulation contractor”.
Based in San Leandro, 21 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 151 Google reviews, listed on Google as “Insulation contractor”.
Based in Oakland, 17 mi away
Ranked #16 because of its Google rating and trade focus: 4.7★ from 31 Google reviews, listed on Google as “Insulation contractor”.
Based in Martinez, 9 mi away
Ranked #17 because of its Google rating and trade focus: 4.7★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based in Antelope, 10 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 Vallejo, 7 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley, 10 mi away
Ranked #20 because of its Google rating and trade focus: 4.6★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based in Concord, 14 mi away
Ranked #21 because of its Google rating and review volume: 4.8★ from 1,046 Google reviews.
Based in Fremont, 12 mi away
Ranked #22 because of its Google rating and trade focus: 4.7★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley, 12 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based in San Francisco, 14 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley, 10 mi away
Ranked #25 because of its Google rating and trade focus: 3.4★ from 5 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 87 ranked insulation contractors here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Reactic Restoration | 55 | 4.7★ (10) | 17 mi |
| 27 | Tiburon Attic Insulation | 55 | 4.4★ (10) | 15 mi |
| 28 | 911 Attic | 54 | 5.0★ (3) | 12 mi |
| 29 | Eco Attic Systems | 54 | 4.8★ (49) | 14 mi |
| 30 | SOS Restoration | 54 | 5.0★ (3) | 14 mi |
| 31 | Eco Attic Systems | 54 | 5.0★ (5) | 11 mi |
| 32 | Insulation Solutions | 54 | 5.0★ (29) | 14 mi |
| 33 | Johnson's Insulation | 54 | 4.8★ (38) | 15 mi |
| 34 | Rodent Exclusion Pro Oakland, CA | 54 | 4.8★ (18) | 17 mi |
| 35 | JM Insulation Inc. | 54 | 5.0★ (6) | 12 mi |
| 36 | All Seasons Insulation | 54 | 5.0★ (82) | 14 mi |
| 37 | Trioteam | 54 | 4.8★ (24) | 13 mi |
| 38 | Juniper Insulation | 53 | 5.0★ (32) | 17 mi |
| 39 | INSULATION ALLIANCE | 53 | 5.0★ (33) | 18 mi |
| 40 | Attic Aid - Rodent Proofing & Insulation | 53 | 5.0★ (3) | 13 mi |
| 41 | Oakland Spray Foam Insulation | 52 | 5.0★ (50) | 17 mi |
| 42 | Superior Painting Company | 52 | 5.0★ (3) | 14 mi |
| 43 | Attic Perfect | 52 | 4.1★ (78) | 21 mi |
| 44 | Exanders Insulation | 51 | 5.0★ (3) | 13 mi |
| 45 | BPP | 51 | 4.6★ (10) | 10 mi |
| 46 | Dorin's Insulation | 51 | 4.4★ (7) | 22 mi |
| 47 | Best Attic | 51 | 5.0★ (3) | 14 mi |
| 48 | McHale's Environmental Insulation, Inc. | 51 | 4.7★ (14) | 13 mi |
| 49 | Bay Area Noise Control | Soundproofing San Francisco | 51 | 4.3★ (24) | 20 mi |
| 50 | Reactic Restoration | 50 | 4.9★ (63) | 20 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 |
|---|---|---|
| Adams Field Services LLC. | 3.0★ (2) | 21 mi |
| Airseal Inc | 3.0★ (2) | 8 mi |
| Attic Solutions | 3.0★ (2) | 18 mi |
| Bayside Insulation-Construction Inc | 5.0★ (1) | 13 mi |
| Brandon's Attic Control | 5.0★ (2) | 17 mi |
| Brick & Hammer | 5.0★ (2) | 13 mi |
| CELInsulation | 5.0★ (1) | 10 mi |
| CMO Pavers | 5.0★ (2) | In Hercules |
| Emerald Insulation & Acoustical Inc. | 5.0★ (2) | 19 mi |
| Equinox Roofing Solutions | 5.0★ (1) | 14 mi |
| Golden Restore inc Berkeley | 1.0★ (1) | 11 mi |
| Pacific Plumbing | 3.0★ (2) | In Hercules |
| Panda Heating & Cooling | 3.5★ (2) | 20 mi |
| Peak Core Insulation | 5.0★ (2) | 14 mi |
| Performance Contracting Inc | 1.0★ (1) | 8 mi |
| Petrochem Insulation Inc | 1.0★ (2) | 6 mi |
| Protek Cargo | 5.0★ (2) | 15 mi |
| Quality Pro Guard | 1.0★ (2) | 9 mi |
| Rising Design & Construction | 3.0★ (2) | 23 mi |
| Soundproofing Remodelers San Francisco Bay Area | 5.0★ (2) | 20 mi |
National price ranges in USD, not adjusted for Hercules. 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 87 Hercules 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 Hercules 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 |