89/100CR Score
Ranked #1 because of its Google rating and availability: 4.9★ from 76 Google reviews, open 24/7.
- 4.9★ from 76 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Insulation Contractors in Kentfield, CA (2026)
59 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Kentfield: Attic Cleaning Services LLC, CR Score 89/100; 4.9★ from 76 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Reactic Restoration, posts 24/7 hours; ranked #2 of 59.
- 13
Most-reviewed: Alley Cat, 1,071 Google reviews at 4.9★, the most of 59 ranked; ranked #13.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
59 Kentfield insulation contractors are ranked here by CR Score, from 8 published factors. 16 are open 24/7, 40 open Saturdays and 26 open Sundays, based on posted hours. The median Google rating is 4.9★ across 59 rated businesses.
Top 10 insulation contractors in Kentfield at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Attic Cleaning Services LLC | 89 | 4.9★ (76) | Alameda, 9 mi away | 24/7 | Overall |
| 2 | Reactic Restoration | 88 | 5.0★ (57) | Richmond, 13 mi away | 24/7 | Emergencies |
| 3 | Alley Cat - Rodent Exclusion Company | 87 | 4.9★ (413) | San Francisco, 14 mi away | Sat · Sun · Evenings | — |
| 4 | SOS Restoration | 84 | 5.0★ (3) | San Rafael, 4 mi away | 24/7 | — |
| 5 | Reactic Restoration | 84 | 4.7★ (10) | Novato, 11 mi away | 24/7 | — |
| 6 | Tiburon Attic Insulation | 84 | 4.4★ (10) | Mill Valley, 5 mi away | 24/7 | — |
| 7 | Bears Restoration | 83 | 4.7★ (14) | Berkeley, 17 mi away | 24/7 | — |
| 8 | Reactic Restoration | 83 | 4.7★ (31) | Oakland, 21 mi away | 24/7 | — |
| 9 | Eco Attic Systems | 83 | 4.8★ (49) | Corte Madera, 2 mi away | Sat · Evenings | — |
| 10 | Attic Cali - Rodent Proofing & Insulation Pros | 83 | 4.7★ (23) | Fremont, 9 mi away | Sat · Sun · Evenings | — |
The 59 best insulation contractors in Kentfield, ranked
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.
Based in Richmond, 13 mi away
88/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 57 Google reviews, open 24/7.
- 5.0★ from 57 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3049 Research Dr, Richmond, CA 94806
Based in San Francisco, 14 mi away
87/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 413 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 413 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat 9 AM–7 PM · Sun 9 AM–6 PM
- Address
- 1390 Market St #200, San Francisco, CA 94102
Based in San Rafael, 4 mi away
84/100CR ScoreRanked #4 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
- 5.0★ from 3 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4040 Civic Center Dr Suite 200, San Rafael, CA 94903
Based in Novato, 11 mi away
84/100CR ScoreRanked #5 because of its Google rating and availability: 4.7★ from 10 Google reviews, open 24/7.
- 4.7★ from 10 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7250 Redwood Blvd Suite 300, Novato, CA 94945
Based in Mill Valley, 5 mi away
84/100CR ScoreRanked #6 because of its Google rating and availability: 4.4★ from 10 Google reviews, open 24/7.
- 4.4★ from 10 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 655 Redwood Highway Frontage Rd, Mill Valley, CA 94941
Based in Berkeley, 17 mi away
83/100CR ScoreRanked #7 because of its Google rating and availability: 4.7★ from 14 Google reviews, open 24/7.
- 4.7★ from 14 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2113B Delaware St, Berkeley, CA 94709
Based in Oakland, 21 mi away
83/100CR ScoreRanked #8 because of its Google rating and availability: 4.7★ from 31 Google reviews, open 24/7.
- 4.7★ from 31 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2632 International Blvd #155b, Oakland, CA 94601
Based in Corte Madera, 2 mi away
83/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 49 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 49 Google reviews
- Hours
- Mon–Fri 6 AM–7 PM · Sat 9 AM–4 PM · Sun closed
- Address
- 400 Tamal Plaza suite 409, Corte Madera, CA 94925
Based in Fremont, 9 mi away
83/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.7★ from 23 Google reviews, listed on Google as “Insulation contractor”.
- 4.7★ from 23 Google reviews
- Hours
- Mon–Fri 7:30 AM–7 PM · Sat–Sun 7:30 AM–5 PM
Based in Berkeley, 15 mi away
82/100CR ScoreRanked #11 because of its Google rating and availability: 4.6★ from 5 Google reviews, open 24/7.
- 4.6★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1227 Hopkins St, Berkeley, CA 94702
#12 911 Attic
Based in Alameda, 9 mi away
82/100CR ScoreRanked #12 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
- 5.0★ from 3 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#13 Alley Cat
Based in Berkeley, 18 mi away
81/100CR ScoreRanked #13 because of its Google rating and review volume: 4.9★ from 1,071 Google reviews, the most Google reviews on this list (1,071).
- 4.9★ from 1,071 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat–Sun closed
- Address
- 3030 Ashby Ave #103b, Berkeley, CA 94705
Based in Berkeley, 18 mi away
81/100CR ScoreRanked #14 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
- 5.0★ from 4 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Richmond, 11 mi away
81/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 44 Google reviews
- Hours
- Mon–Fri 6:30 AM–6:30 PM · Sat 12 PM–5 PM · Sun closed
- Address
- 1201 Pennsylvania Ave Unit D, Richmond, CA 94801
Based in Berkeley, 17 mi away
80/100CR ScoreRanked #16 because of its Google rating and availability: 3.4★ from 5 Google reviews, open 24/7.
- 3.4★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1569 Arch St, Berkeley, CA 94708
Based in San Francisco, 13 mi away
80/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 54 Google reviews
- Hours
- Mon–Sat 6 AM–8 PM · Sun closed
- Address
- 800 Avenue H, San Francisco, CA 94130
Based in Antelope, 15 mi away
80/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 38 Google reviews
- Hours
- Mon–Sat 8 AM–8 PM · Sun closed
Based in San Francisco, 14 mi away
80/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 32 Google reviews
- Hours
- Mon–Sat 7 AM–7 PM · Sun closed
- Address
- 1240 Bush St, San Francisco, CA 94109
Based in Daly City, 21 mi away
79/100CR ScoreRanked #20 because of its Google rating and availability: 4.0★ from 4 Google reviews, open 24/7.
- 4.0★ from 4 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 500 King Dr #418, Daly City, CA 94015
Based in San Francisco, 18 mi away
79/100CR ScoreRanked #21 because of its Google rating and availability: 4.9★ from 63 Google reviews, open 24/7.
- 4.9★ from 63 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1355 Fairfax Ave b2, San Francisco, CA 94124
Based in Antioch, 9 mi away
79/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 6 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
Based in Alameda, 17 mi away
79/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 33 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat 8 AM–5 PM · Sun closed
Based in Mill Valley, 4 mi away
79/100CR ScoreRanked #24 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 24/7.
- 5.0★ from 6 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 552 Miller Ave #4, Mill Valley, CA 94941
#25 Mr Attic
Based in Martinez, 24 mi away
79/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.7★ from 23 Google reviews, listed on Google as “Insulation contractor”.
- 4.7★ from 23 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat–Sun 7 AM–5 PM
- Address
- 3816 Alhambra Way, Martinez, CA 94553
Insulation contractors ranked #26 to #50
#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 59 ranked insulation contractors here; the rest are on their profiles.
Also serving Kentfield
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 |
|---|---|---|
| A & M Lath & Plastering Inc. | 1.0★ (1) | 23 mi |
| AG Painting | 5.0★ (1) | 23 mi |
| Airseal Inc | 3.0★ (2) | 23 mi |
| Brandon's Attic Control | 5.0★ (2) | 22 mi |
| CRG Insulation & Acoustical Inc. | 9 mi | |
| Emerald Insulation & Acoustical Inc. | 5.0★ (2) | 15 mi |
| Equinox Roofing Solutions | 5.0★ (1) | 4 mi |
| Fire Damage Patrol | 5.0★ (1) | 14 mi |
| Gold attic insulation san Francisco | 5.0★ (1) | 14 mi |
| Golden Restore inc Berkeley | 1.0★ (1) | 17 mi |
| Guil Home Services | 5.0★ (72) | In Kentfield |
| Marin Drywall Inc | 7 mi | |
| O'Connor Insulation & Energy, Inc | 5.0★ (1) | 14 mi |
| Peak Core Insulation | 5.0★ (2) | 19 mi |
| Performance Contracting Inc | 1.0★ (1) | 10 mi |
| Petrochem Insulation Inc | 1.0★ (2) | 20 mi |
| Protek Cargo | 5.0★ (2) | 25 mi |
| Quality Pro Guard | 1.0★ (2) | 24 mi |
| Rising Design & Construction | 3.0★ (2) | 9 mi |
| Soundproofing Remodelers San Francisco Bay Area | 5.0★ (2) | 13 mi |
How much do insulation contractors cost in Kentfield?
National price ranges in USD, not adjusted for Kentfield. 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 |
How we ranked Kentfield insulation contractors
We scored 59 Kentfield 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 Kentfield 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 |
Insulation contractors in Kentfield: frequently asked questions
Who is the best insulation contractor in Kentfield?
By CR Score, the highest-ranked insulation contractor in Kentfield, CA is Attic Cleaning Services LLC with a CR Score of 89/100. It has 4.9★ from 76 Google reviews. It is open 24/7. Reactic Restoration (#2) and Alley Cat - Rodent Exclusion Company (#3) follow. We ranked 59 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Kentfield?
ContractorsRanked ranks 59 insulation contractors serving Kentfield, CA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which insulation contractors in Kentfield are open 24/7?
16 ranked insulation contractors in Kentfield post 24/7 hours. The highest-ranked are Attic Cleaning Services LLC (#1), Reactic Restoration (#2) and SOS Restoration (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Kentfield work on weekends?
40 of 59 ranked insulation contractors post Saturday hours and 26 post Sunday hours. The highest-ranked open Saturdays are Attic Cleaning Services LLC (#1), Reactic Restoration (#2) and Alley Cat - Rodent Exclusion Company (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Kentfield?
Attic insulation typically costs $1,700 to $2,500, with $2,100 typical (Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range). This is a national range, not adjusted for Kentfield. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Kentfield insulation contractors have?
The median Google rating among 59 rated insulation contractors in Kentfield is 4.9★, with a median of 12 reviews. Alley Cat has the most, 1,071 reviews, and ranks #13. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank insulation contractors?
Each insulation contractor gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do insulation contractors outside Kentfield count in this ranking?
Yes, if they are within 25 mi of the Kentfield city center, our service radius for insulation contractors. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Update log for Kentfield
- October 2026: CR Scores recalculated for 59 insulation contractors serving Kentfield.
More insulation contractors and Kentfield pages
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