63 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Pittsburg: Service Champions, CR Score 87/100; 4.9★ from 5,220 Google reviews; open 24/7.
Best for emergencies (open 24/7): Miller Attics, posts 24/7 hours; ranked #2 of 63.
Most-reviewed: Service Champions, 4,721 Google reviews at 4.9★, the most of 63 ranked after Service Champions; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
63 Pittsburg insulation contractors are ranked here by CR Score, from 8 published factors. 17 are open 24/7, 39 open Saturdays and 33 open Sundays, based on posted hours. The median Google rating is 4.9★ across 63 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Service Champions | 87 | 4.9★ (5,220) | Martinez, 11 mi away | 24/7 | Overall |
| 2 | Miller Attics | 86 | 5.0★ (46) | Walnut Creek, 13 mi away | 24/7 | Emergencies |
| 3 | Alamo Attic Insulation Pro | 85 | 4.9★ (94) | Alamo, 15 mi away | 24/7 | — |
| 4 | Freschi Service Experts | 84 | 4.8★ (1,046) | Concord, 8 mi away | 24/7 | — |
| 5 | Reactic Restoration | 83 | 5.0★ (57) | Richmond, 24 mi away | 24/7 | — |
| 6 | Service Champions | 83 | 4.9★ (4,721) | Livermore, 24 mi away | 24/7 | Most reviews |
| 7 | EcoGuard Pest Management | 83 | 4.8★ (1,198) | Concord, 11 mi away | Sat | — |
| 8 | EcoGuard Pest Management | 83 | 4.9★ (279) | Dublin, 22 mi away | Sat · Sun · Evenings | — |
| 9 | American Attic | 82 | 5.0★ (219) | Oakland, 24 mi away | Sat · Sun | — |
| 10 | Service Champions | 81 | 4.8★ (2,337) | Pleasanton, 23 mi away | 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: 4.9★ from 5,220 Google reviews, the most Google reviews on this list (5,220).
Based in Walnut Creek, 13 mi away
Ranked #2 because of its Google rating and availability: 5.0★ from 46 Google reviews, open 24/7.
Based in Alamo, 15 mi away
Ranked #3 because of its Google rating and availability: 4.9★ from 94 Google reviews, open 24/7.
Based in Concord, 8 mi away
Ranked #4 because of its Google rating and availability: 4.8★ from 1,046 Google reviews, open 24/7.
Based in Richmond, 24 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 57 Google reviews, open 24/7.
Based in Livermore, 24 mi away
Ranked #6 because of its Google rating and availability: 4.9★ from 4,721 Google reviews, open 24/7.
Based in Concord, 11 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 1,198 Google reviews, listed on Google as “Insulation contractor”.
Based in Dublin, 22 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 279 Google reviews, listed on Google as “Insulation contractor”.
Based in Oakland, 24 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 219 Google reviews, listed on Google as “Insulation contractor”.
Based in Pleasanton, 23 mi away
Ranked #10 because of its Google rating and availability: 4.8★ from 2,337 Google reviews, open 24/7.
Based in Livermore, 24 mi away
Ranked #11 because of its Google rating and availability: 4.9★ from 1,331 Google reviews, open 24/7.
Based in Pittsburg
Ranked #12 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley, 23 mi away
Ranked #13 because of its Google rating and availability: 4.7★ from 14 Google reviews, open 24/7.
Based in Martinez, 14 mi away
Ranked #14 because of its Google rating and trade focus: 4.7★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based in Dixon, 23 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 49 Google reviews, listed on Google as “Insulation contractor”.
Based in Livermore, 24 mi away
Ranked #16 because of its Google rating and availability: 4.9★ from 549 Google reviews, open 24/7.
Based in Berkeley, 24 mi away
Ranked #17 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
Based in Berkeley, 25 mi away
Ranked #18 because of its Google rating and availability: 4.6★ from 5 Google reviews, open 24/7.
Based in Pleasanton, 24 mi away
Ranked #19 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
Based in Alameda, 24 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 39 Google reviews, listed on Google as “Insulation contractor”.
Based in Walnut Creek, 12 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley, 23 mi away
Ranked #22 because of its Google rating and availability: 3.4★ from 5 Google reviews, open 24/7.
Based in Concord, 9 mi away
Ranked #23 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
Based in Brentwood, 13 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 405 Google reviews, listed on Google as “Insulation contractor”.
Based in Alameda, 23 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 18 Google reviews, listed on Google as “Insulation contractor”.
National price ranges in USD, not adjusted for Pittsburg. 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 63 Pittsburg 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 Pittsburg 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 |