65 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Larkspur: Attic Pros, CR Score 60/100; 4.8★ from 1,938 Google reviews; open 24/7.
Best for emergencies (open 24/7): Attic Cleaning Services LLC, posts 24/7 hours; ranked #2 of 65.
Most-reviewed: Service Champions, 5,220 Google reviews at 4.9★, the most of 65 ranked; ranked #14.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
65 Larkspur insulation contractors are ranked here by CR Score, from ten published factors. 19 are open 24/7, 46 open Saturdays and 32 open Sundays, based on posted hours. The median Google rating is 4.9★ across 65 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Attic Pros | 60 | 4.8★ (1,938) | Oakland, 24 mi away | 24/7 | Overall |
| 2 | Attic Cleaning Services LLC | 60 | 4.9★ (76) | Alameda, 7 mi away | 24/7 | Emergencies |
| 3 | Alley Cat - Rodent Exclusion Company | 60 | 4.9★ (413) | San Francisco, 13 mi away | Sat · Sun · Evenings | — |
| 4 | Reactic Restoration | 59 | 5.0★ (57) | Richmond, 12 mi away | 24/7 | — |
| 5 | Tiburon Attic Insulation | 58 | 4.4★ (10) | Mill Valley, 3 mi away | 24/7 | — |
| 6 | Eco Attic Systems | 58 | 4.8★ (49) | Corte Madera, 1 mi away | Sat · Evenings | — |
| 7 | Alley Cat | 57 | 4.9★ (1,071) | Berkeley, 17 mi away | Evenings | — |
| 8 | Attic Cali - Rodent Proofing & Insulation Pros | 56 | 4.7★ (23) | Fremont, 7 mi away | Sat · Sun · Evenings | — |
| 9 | SOS Restoration | 56 | 5.0★ (3) | San Rafael, 5 mi away | 24/7 | — |
| 10 | American Attic | 56 | 5.0★ (219) | Oakland, 25 mi away | Sat · Sun | — |
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: 4.8★ from 1,938 Google reviews, listed on Google as “Insulation contractor”.
Based in Alameda, 7 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 76 Google reviews, listed on Google as “Insulation contractor”.
Based in San Francisco, 13 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 413 Google reviews, listed on Google as “Insulation contractor”.
Based in Richmond, 12 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “Insulation contractor”.
Based in Mill Valley, 3 mi away
Ranked #5 because of its Google rating and trade focus: 4.4★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based in Corte Madera, 1 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 49 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley, 17 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 1,071 Google reviews, listed on Google as “Insulation contractor”.
Based in Fremont, 7 mi away
Ranked #8 because of its Google rating and trade focus: 4.7★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based in San Rafael, 5 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based in Oakland, 25 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 219 Google reviews, listed on Google as “Insulation contractor”.
Based in San Leandro, 24 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 151 Google reviews, listed on Google as “Insulation contractor”.
Based in Richmond, 10 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Insulation contractor”.
Based in Novato, 12 mi away
Ranked #13 because of its Google rating and trade focus: 4.7★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based in Martinez, 25 mi away
Ranked #14 because of its Google rating and review volume: 4.9★ from 5,220 Google reviews, the most in Larkspur.
Based in Alameda, 7 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley, 15 mi away
Ranked #16 because of its Google rating and trade focus: 4.7★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based in San Francisco, 12 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Insulation contractor”.
Based in Oakland, 20 mi away
Ranked #18 because of its Google rating and trade focus: 4.7★ from 31 Google reviews, listed on Google as “Insulation contractor”.
Based in Antioch, 7 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based in San Francisco, 12 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Insulation contractor”.
Based in Antelope, 14 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley, 14 mi away
Ranked #22 because of its Google rating and trade focus: 4.6★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based in Alameda, 15 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley, 16 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based in Berkeley, 15 mi away
Ranked #25 because of its Google rating and trade focus: 3.4★ from 5 Google reviews, listed on Google as “Insulation contractor”.
#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 65 ranked insulation contractors here; the rest are on their profiles.
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) | 21 mi |
| AG Painting | 5.0★ (1) | 23 mi |
| Airseal Inc | 3.0★ (2) | 22 mi |
| Brandon's Attic Control | 5.0★ (2) | 21 mi |
| Brick & Hammer | 5.0★ (2) | 25 mi |
| CELInsulation | 5.0★ (1) | 25 mi |
| Emerald Insulation & Acoustical Inc. | 5.0★ (2) | 14 mi |
| Equinox Roofing Solutions | 5.0★ (1) | 5 mi |
| Fire Damage Patrol | 5.0★ (1) | 13 mi |
| Gold attic insulation san Francisco | 5.0★ (1) | 12 mi |
| Golden Restore inc Berkeley | 1.0★ (1) | 16 mi |
| Marin Drywall Inc | 5 mi | |
| O'Connor Insulation & Energy, Inc | 5.0★ (1) | 14 mi |
| Panda Heating & Cooling | 3.5★ (2) | 24 mi |
| Peak Core Insulation | 5.0★ (2) | 17 mi |
| Performance Contracting Inc | 1.0★ (1) | 9 mi |
| Petrochem Insulation Inc | 1.0★ (2) | 19 mi |
| Quality Pro Guard | 1.0★ (2) | 23 mi |
| Rising Design & Construction | 3.0★ (2) | 10 mi |
| Soundproofing Remodelers San Francisco Bay Area | 5.0★ (2) | 11 mi |
National price ranges in USD, not adjusted for Larkspur. 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 65 Larkspur 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 Larkspur 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 |