38 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Napa: Reactic Restoration, CR Score 56/100; 5.0★ from 57 Google reviews; open 24/7.
Best for emergencies (open 24/7): Service Champions, posts 24/7 hours; ranked #2 of 38.
Most-reviewed: Service Champions, 5,220 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 Napa insulation contractors are ranked here by CR Score, from ten published factors. 8 are open 24/7, 18 open Saturdays and 12 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 | Reactic Restoration | 56 | 5.0★ (57) | Richmond, 22 mi away | 24/7 | Overall |
| 2 | Service Champions | 56 | 4.9★ (5,220) | Martinez, 23 mi away | 24/7 | Emergencies, Most reviews |
| 3 | EcoGuard Pest Management | 56 | 4.8★ (1,198) | Concord, 24 mi away | Sat | — |
| 4 | Attic Kings | 54 | 5.0★ (26) | Vallejo, 14 mi away | Sat | — |
| 5 | Reactic Restoration | 54 | 4.7★ (10) | Novato, 20 mi away | 24/7 | — |
| 6 | Superior Painting Company | 53 | 5.0★ (3) | Fairfield, 11 mi away | Sat · Sun · Evenings | — |
| 7 | KC Home Services Plumbing, Heating & AC Repair | 53 | 4.9★ (827) | Santa Rosa, 24 mi away | 24/7 | — |
| 8 | Freschi Service Experts | 53 | 4.8★ (1,046) | Concord, 24 mi away | 24/7 | — |
| 9 | Mr Attic | 53 | 4.7★ (23) | Martinez, 22 mi away | Sat · Sun · Evenings | — |
| 10 | Noble Insulation Inc | 52 | 5.0★ (44) | Richmond, 25 mi away | Sat · Evenings | — |
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: 5.0★ from 57 Google reviews, listed on Google as “Insulation contractor”.
Based in Martinez, 23 mi away
Ranked #2 because of its Google rating and review volume: 4.9★ from 5,220 Google reviews, the most in Napa.
Based in Concord, 24 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 1,198 Google reviews, listed on Google as “Insulation contractor”.
Based in Vallejo, 14 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Insulation contractor”.
Based in Novato, 20 mi away
Ranked #5 because of its Google rating and trade focus: 4.7★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based in Fairfield, 11 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based in Santa Rosa, 24 mi away
Ranked #7 because of its Google rating and review volume: 4.9★ from 827 Google reviews.
Based in Concord, 24 mi away
Ranked #8 because of its Google rating and review volume: 4.8★ from 1,046 Google reviews.
Based in Martinez, 22 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based in Richmond, 25 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Insulation contractor”.
Based in Fairfield, 14 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based in San Rafael, 24 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based in Petaluma, 21 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Insulation contractor”.
Based in Vacaville, 19 mi away
Ranked #14 because of its Google rating and review volume: 4.9★ from 500 Google reviews.
Based in Santa Rosa, 25 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “Insulation contractor”.
Based in Fairfield, 13 mi away
Ranked #16 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 24/7.
Based in Santa Rosa, 24 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based in Santa Rosa, 25 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based in Fairfield, 15 mi away
Ranked #19 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based in Fairfield, 16 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based in Concord, 24 mi away
Ranked #21 because of its Google rating and trade focus: 4.7★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based in Martinez, 23 mi away
Ranked #22 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based in Petaluma, 20 mi away
Ranked #23 because of its Google rating and trade focus: 3.5★ from 19 Google reviews, listed on Google as “Insulation contractor”.
Based in San Rafael, 24 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based in Fairfield, 10 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Roofing 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 | Coast Building Products | 47 | 4.4★ (9) | 24 mi |
| 27 | Vezer's Roofing | 47 | 4.6★ (9) | 16 mi |
| 28 | Verdin Insulation, Inc | 47 | 5.0★ (3) | 23 mi |
| 29 | A-1 Guaranteed Heating & Air, Inc | 46 | 4.9★ (236) | 23 mi |
| 30 | Electrify My Home | 46 | 4.9★ (46) | 15 mi |
| 31 | HSR Home Service | 46 | 4.8★ (210) | 22 mi |
| 32 | Roofmasters | 46 | 4.7★ (42) | 14 mi |
| 33 | Bell Brothers Plumbing Heating & Air - Concord | 45 | 4.0★ (4) | 24 mi |
| 34 | 4 Edges Construction | 45 | 4.8★ (40) | 18 mi |
| 35 | Certified Coatings of Calif | 45 | 4.7★ (3) | 13 mi |
| 36 | R&T Pro Remodeling | 44 | 5.0★ (4) | 24 mi |
| 37 | Alliance Environmental Group | 43 | 2.5★ (10) | 10 mi |
| 38 | Performance Contracting Inc | 41 | 3.0★ (5) | 19 mi |
18 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 |
|---|---|---|
| AG Painting | 5.0★ (1) | In Napa |
| Airseal Inc | 3.0★ (2) | 21 mi |
| B & D Insulation | 5.0★ (1) | 24 mi |
| CELInsulation | 5.0★ (1) | 17 mi |
| Certified Specialists, Inc. | 5.0★ (2) | 25 mi |
| Dublin A+ Insulation | 21 mi | |
| Ecco Insulation | 10 mi | |
| Equinox Roofing Solutions | 5.0★ (1) | 24 mi |
| J R CONSTRUCTION - SOL SOLUTIONS, Inc. | 5.0★ (10) | In Napa |
| Modern Method Roofing | 3.9★ (20) | In Napa |
| Organ Drywall | In Napa | |
| PEM Insulation Company, Inc. | 10 mi | |
| Petrochem Insulation Inc | 1.0★ (2) | 14 mi |
| Pre-Insualted Metal Technolgy | 3.0★ (2) | 19 mi |
| Protek Cargo | 5.0★ (2) | In Napa |
| Quality Pro Guard | 1.0★ (2) | 22 mi |
| Rohnert Park attic insulation | 1.0★ (1) | 22 mi |
| Vacaville attic cleaning and insulation | 20 mi |
National price ranges in USD, not adjusted for Napa. 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 Napa 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 Napa 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 |