19 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Rohnert Park: KC Home Services Plumbing, Heating & AC Repair, CR Score 88/100; 4.9★ from 827 Google reviews; open 24/7.
Best for emergencies (open 24/7): Reactic Restoration, posts 24/7 hours; ranked #3 of 19.
Most-reviewed: Under The House., 62 Google reviews at 5.0★, the most of 19 ranked after KC Home Services Plumbing, Heating & AC Repair; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
19 Rohnert Park insulation contractors are ranked here by CR Score, from 8 published factors. 3 are open 24/7, 10 open Saturdays and 6 open Sundays, based on posted hours. The median Google rating is 5.0★ across 19 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | KC Home Services Plumbing, Heating & AC Repair | 88 | 4.9★ (827) | Santa Rosa, 5 mi away | 24/7 | Overall |
| 2 | Under The House. | 86 | 5.0★ (62) | Santa Rosa, 8 mi away | Sat · Sun · Evenings | Most reviews |
| 3 | Reactic Restoration | 83 | 4.7★ (10) | Novato, 18 mi away | 24/7 | Emergencies |
| 4 | Atticare | 80 | 5.0★ (15) | Petaluma, 5 mi away | Sat | — |
| 5 | Clean CrawlSpace Inc. | 79 | 5.0★ (57) | Santa Rosa, 4 mi away | — | — |
| 6 | SOS Restoration | 79 | 5.0★ (3) | San Rafael, 25 mi away | 24/7 | — |
| 7 | North Bay Insulation Inc | 77 | 4.0★ (6) | Santa Rosa, 10 mi away | — | — |
| 8 | Insulation Solutions | 77 | 4.9★ (29) | Santa Rosa, 7 mi away | — | — |
| 9 | MKM Insulation Contractor of Santa Rosa CA | 77 | 5.0★ (6) | Santa Rosa, 8 mi away | Sat · Evenings | — |
| 10 | Sonoma Insulation Company | 76 | 5.0★ (6) | Larkfield-Wikiup, 15 mi away | Sat | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 in Rohnert Park
Based in Santa Rosa, 5 mi away
Ranked #1 because of its Google rating and review volume: 4.9★ from 827 Google reviews, the most Google reviews on this list (827).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Santa Rosa, 8 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Novato, 18 mi away
Ranked #3 because of its Google rating and availability: 4.7★ from 10 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Petaluma, 5 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Santa Rosa, 4 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Rafael, 25 mi away
Ranked #6 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Santa Rosa, 10 mi away
Ranked #7 because of its Google rating and trade focus: 4.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Santa Rosa, 7 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Santa Rosa, 8 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Larkfield-Wikiup, 15 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Larkfield-Wikiup, 18 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Santa Rosa, 3 mi away
Ranked #12 because of its Google rating and trade focus: 4.4★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Santa Rosa, 18 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cotati, 1 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Petaluma, 7 mi away
Ranked #15 because of its Google rating and trade focus: 3.5★ from 19 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Santa Rosa, 7 mi away
Ranked #16 because of its Google rating and availability: 3.8★ from 5 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Corte Madera, 19 mi away
Ranked #17 because of its Google rating and availability: 4.0★ from 4 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fairfield, 7 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Rafael, 24 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
14 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) | 23 mi |
| B & D Insulation | 5.0★ (1) | 4 mi |
| Ca Shingle & Shake Co Inc | 4.6★ (18) | In Rohnert Park |
| California State Insulation | 5.0★ (2) | 6 mi |
| Certified Specialists, Inc. | 5.0★ (2) | 4 mi |
| Crawl Space Specialist | 5.0★ (4) | In Rohnert Park |
| Ecco Insulation | 14 mi | |
| Equinox Roofing Solutions | 5.0★ (1) | 25 mi |
| North Bay Insulation | 8 mi | |
| North Bay Pacific Insulators | 5.0★ (1) | 9 mi |
| Rising Design & Construction | 3.0★ (2) | 25 mi |
| Rohnert Park attic insulation | 1.0★ (1) | In Rohnert Park |
| S.A.F.E- Mold, Attics & Ceawl Space Restoration | 13 mi | |
| Valente's Handyman Service | 1.0★ (1) | In Rohnert Park |
National price ranges in USD, not adjusted for Rohnert Park. 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 19 Rohnert Park 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 Rohnert Park 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 |