38 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Discovery Bay: Ace Handyman Services Brentwood, CR Score 58/100; 4.9★ from 405 Google reviews.
Best for emergencies (open 24/7): Service Champions, posts 24/7 hours; ranked #2 of 38.
Most-reviewed: Service Champions, 4,721 Google reviews at 4.9★, the most of 38 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
38 Discovery Bay insulation contractors are ranked here by CR Score, from ten published factors. 10 are open 24/7, 23 open Saturdays and 18 open Sundays, based on posted hours. The median Google rating is 4.9★ across 38 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Ace Handyman Services Brentwood | 58 | 4.9★ (405) | Brentwood, 5 mi away | — | Overall |
| 2 | Service Champions | 57 | 4.9★ (4,721) | Livermore, 19 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Alamo Attic Insulation Pro | 56 | 4.9★ (94) | Alamo, 24 mi away | 24/7 | — |
| 4 | Service Champions | 55 | 4.9★ (1,331) | Livermore, 19 mi away | 24/7 | — |
| 5 | Eagle Air | 55 | 4.9★ (549) | Livermore, 16 mi away | 24/7 | — |
| 6 | Service Champions | 55 | 4.8★ (2,337) | Pleasanton, 23 mi away | 24/7 | — |
| 7 | CA Attic Solutions | 54 | 5.0★ (27) | Tracy, 13 mi away | Sat | — |
| 8 | Carlos Insulation Inc. | Residential & Commercial Insulation Services | 54 | 4.2★ (26) | Brentwood, 7 mi away | Sat · Evenings | — |
| 9 | Apex Attic Insulation & Spray Foam Lodi | 54 | 4.9★ (32) | Lodi, 15 mi away | Sat · Evenings | — |
| 10 | American Attics | 54 | 5.0★ (89) | Pleasanton, 24 mi away | Sat | — |
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: 4.9★ from 405 Google reviews, listed on Google as “Insulation contractor”.
Based in Livermore, 19 mi away
Ranked #2 because of its Google rating and review volume: 4.9★ from 4,721 Google reviews, the most in Discovery Bay.
Based in Alamo, 24 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 94 Google reviews, listed on Google as “Insulation contractor”.
Based in Livermore, 19 mi away
Ranked #4 because of its Google rating and review volume: 4.9★ from 1,331 Google reviews.
Based in Livermore, 16 mi away
Ranked #5 because of its Google rating and review volume: 4.9★ from 549 Google reviews.
Based in Pleasanton, 23 mi away
Ranked #6 because of its Google rating and review volume: 4.8★ from 2,337 Google reviews.
Based in Tracy, 13 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Insulation contractor”.
Based in Brentwood, 7 mi away
Ranked #8 because of its Google rating and trade focus: 4.2★ from 26 Google reviews, listed on Google as “Insulation contractor”.
Based in Lodi, 15 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 32 Google reviews, listed on Google as “Insulation contractor”.
Based in Pleasanton, 24 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 89 Google reviews, listed on Google as “Insulation contractor”.
Based in Alameda, 24 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 39 Google reviews, listed on Google as “Insulation contractor”.
Based in Stockton, 17 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 32 Google reviews, listed on Google as “Insulation contractor”.
Based in Concord, 25 mi away
Ranked #13 because of its Google rating and review volume: 4.8★ from 1,046 Google reviews.
Based in Livermore, 23 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Insulation contractor”.
Based in Livermore, 19 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based in Pittsburg, 17 mi away
Ranked #16 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based in Pleasanton, 22 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based in Manteca, 21 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based in San Ramon, 23 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 32 Google reviews, listed on Google as “Insulation contractor”.
Based in Pleasant Hill, 25 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 82 Google reviews, listed on Google as “Insulation contractor”.
Based in August, 19 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based in Lathrop, 23 mi away
Ranked #22 because of its Google rating and review volume: 5.0★ from 142 Google reviews.
Based in Pleasanton, 23 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 30 Google reviews, listed on Google as “Insulation contractor”.
Based in San Ramon, 23 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Insulation contractor”.
Based in Livermore, 16 mi away
Ranked #25 because of its Google rating and trade focus: 4.0★ from 12 Google reviews, listed on Google as “Insulation contractor”.
#1 to #25 are shown in full above. Here are #26 to #38, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Eagle Shield | 49 | 4.4★ (13) | 19 mi |
| 27 | Reactic Restoration | 48 | 5.0★ (9) | 17 mi |
| 28 | Best Attic | 48 | 5.0★ (3) | 24 mi |
| 29 | Petrochem Insulation, Inc. | 48 | 3.3★ (4) | 24 mi |
| 30 | Silvercote | 48 | 4.0★ (8) | 21 mi |
| 31 | Parex USA Inc | 48 | 3.6★ (5) | 18 mi |
| 32 | California duct cleaning | 47 | 5.0★ (6) | 20 mi |
| 33 | Phoenix Roofing & Solar | 47 | 4.8★ (113) | 15 mi |
| 34 | Yorkshire Roofing | 47 | 4.0★ (11) | 15 mi |
| 35 | A-1 Guaranteed Heating & Air, Inc | 46 | 4.9★ (236) | 25 mi |
| 36 | JJC Painting | 46 | 5.0★ (15) | 9 mi |
| 37 | Bell Brothers Plumbing Heating & Air - Concord | 45 | 4.0★ (4) | 25 mi |
| 38 | Synergy Companies | 43 | 4.2★ (52) | 18 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 Attic Insulation Installation LLC | 18 mi | |
| Adams Field Services LLC. | 3.0★ (2) | 17 mi |
| ALCAL Specialty Contracting Stockton - Home Service Division | 4.5★ (2) | 20 mi |
| All pro Insulation and junk solutions | 5.0★ (1) | 17 mi |
| Attic Fix Pro | 5.0★ (1) | 25 mi |
| Attic Solutions | 3.0★ (2) | 21 mi |
| Attic Top Team | 5.0★ (1) | 24 mi |
| Barbero Drywall | 19 mi | |
| Bay Area Insulation | 20 mi | |
| Bay Insulation Contractors | 10 mi | |
| Bayside Insulation-Construction Inc | 5.0★ (1) | 25 mi |
| Canyon Insulation Inc | 5.0★ (2) | 16 mi |
| Insulation Specialties Inc | 22 mi | |
| Kevin's insulation Co Antioch | 5.0★ (1) | 12 mi |
| Noble Frame Insulation | 19 mi | |
| Performance Contracting Inc | 1.0★ (2) | 15 mi |
| Platinum Insulation Inc. | 5.0★ (1) | 18 mi |
| Prime Air Duct Cleaning | 5.0★ (2) | 15 mi |
| Ramon's Insulation Services | 21 mi | |
| Western Building Materials Co | 4.0★ (1) | 20 mi |
National price ranges in USD, not adjusted for Discovery Bay. 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 38 Discovery Bay 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 Discovery Bay 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 |