64/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 1,938 Google reviews, the most in San Bruno.
- 4.8★ from 1,938 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 718 Douglas Ave, Oakland, CA 94603
Best Insulation Contractors in San Bruno, CA (2026)
82 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in San Bruno: Attic Pros, CR Score 64/100; 4.8★ from 1,938 Google reviews; open 24/7.
- 7
Best for emergencies (open 24/7): Attic Cleaning Services LLC, posts 24/7 hours; ranked #7 of 82.
- 9
Most-reviewed: Alley Cat, 1,071 Google reviews at 4.9★, the most of 82 ranked after Attic Pros; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
82 San Bruno insulation contractors are ranked here by CR Score, from ten published factors. 23 are open 24/7, 61 open Saturdays and 46 open Sundays, based on posted hours. The median Google rating is 5.0★ across 82 rated businesses.
Top 10 insulation contractors in San Bruno at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Attic Pros | 64 | 4.8★ (1,938) | Oakland, 15 mi away | 24/7 | Overall |
| 2 | Alley Cat - Rodent Exclusion Company | 62 | 4.9★ (413) | San Francisco, 10 mi away | Sat · Sun · Evenings | — |
| 3 | Atticare USA | 60 | 4.8★ (439) | San Leandro, 15 mi away | Sat · Sun · Evenings | — |
| 4 | American Attic | 59 | 5.0★ (219) | Oakland, 16 mi away | Sat · Sun | — |
| 5 | Rywen Insulation Inc. | 59 | 5.0★ (151) | San Leandro, 14 mi away | Sat · Sun | — |
| 6 | Attic Star | 59 | 4.9★ (156) | Redwood City, 15 mi away | Sat · Sun · Evenings | — |
| 7 | Attic Cleaning Services LLC | 58 | 4.9★ (76) | Alameda, 17 mi away | 24/7 | Emergencies |
| 8 | EcoGuard Pest Management | 58 | 4.9★ (279) | Dublin, 20 mi away | Sat · Sun · Evenings | — |
| 9 | Alley Cat | 58 | 4.9★ (1,071) | Berkeley, 18 mi away | Evenings | Most reviews |
| 10 | Insulation Solutions | 58 | 5.0★ (11) | San Mateo, 8 mi away | 24/7 | — |
The 82 best insulation contractors in San Bruno, ranked
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.
Based in San Francisco, 10 mi away
62/100CR ScoreRanked #2 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
#3 Atticare USA
Based in San Leandro, 15 mi away
60/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.8★ from 439 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 439 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat–Sun 9 AM–6 PM
- Address
- 303 W Joaquin Ave Unit #103, San Leandro, CA 94577
Based in Oakland, 16 mi away
59/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 219 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 219 Google reviews
- Hours
- Mon–Sun 7 AM–6 PM
- Address
- 2721 106th Ave, Oakland, CA 94605
Based in San Leandro, 14 mi away
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 151 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 151 Google reviews
- Hours
- Mon–Sat 8 AM–6 PM · Sun 9 AM–4 PM
- Address
- 456 Hester St, San Leandro, CA 94577
#6 Attic Star
Based in Redwood City, 15 mi away
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 156 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 156 Google reviews
- Hours
- Mon–Thu 7 AM–7:30 PM · Fri 7 AM–6 PM · Sat–Sun 7 AM–7:30 PM
- Address
- 2847 Middlefield Rd, Redwood City, CA 94063
Based in Alameda, 17 mi away
58/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 76 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 76 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Dublin, 20 mi away
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 279 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 279 Google reviews
- Hours
- Mon–Sun 7 AM–9 PM
#9 Alley Cat
Based in Berkeley, 18 mi away
58/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 1,071 Google reviews, listed on Google as “Insulation contractor”.
- 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 San Mateo, 8 mi away
58/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 11 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1900 S Norfolk St, San Mateo, CA 94403
Based in Hayward, 19 mi away
57/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 48 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 48 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1340 A St, Hayward, CA 94541
Based in Oakland, 14 mi away
57/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.7★ from 31 Google reviews, listed on Google as “Insulation contractor”.
- 4.7★ from 31 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2632 International Blvd #155b, Oakland, CA 94601
#13 Attic Elite
Based in Newark, 22 mi away
57/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 474 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 474 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat closed · Sun 8 AM–6 PM
- Address
- 37310 Cedar Blvd Suite H, Newark, CA 94560
Based in Daly City, 3 mi away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
- 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 Carlos, 11 mi away
57/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 12 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 110 Glenn Way Suite #13, San Carlos, CA 94070
Based in San Mateo, 6 mi away
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 9 Google reviews
- Hours
- Mon–Sun 8 AM–6 PM
- Address
- 119 Prague St, San Mateo, CA 94401
Based in Alameda, 10 mi away
56/100CR ScoreRanked #17 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 Redwood Shores, 5 mi away
56/100CR ScoreRanked #18 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–11 PM
Based in San Francisco, 14 mi away
56/100CR ScoreRanked #19 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 San Francisco, 11 mi away
56/100CR ScoreRanked #20 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 Palo Alto, 20 mi away
55/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 16 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 407 California Ave Unit 10, Palo Alto, CA 94306
Based in Berkeley, 19 mi away
55/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.7★ from 14 Google reviews, listed on Google as “Insulation contractor”.
- 4.7★ from 14 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2113B Delaware St, Berkeley, CA 94709
Based in Burlingame, 5 mi away
55/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.8★ from 43 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 43 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 370 Lang Rd, Burlingame, CA 94010
Based in San Mateo, 7 mi away
55/100CR ScoreRanked #24 because of its Google rating and review volume: 5.0★ from 66 Google reviews.
- 5.0★ from 66 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3 E 3rd Ave Unit 337, San Mateo, CA 94401
#25 Trap Guard
Based in Redwood Shores, 20 mi away
55/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 13 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
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 82 ranked insulation contractors here; the rest are on their profiles.
Also serving San Bruno
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) | 14 mi |
| Brandon's Attic Control | 5.0★ (2) | 15 mi |
| C. Kell-Smith & Associates | In San Bruno | |
| Certified Pro Restorations, INC | 5.0★ (1) | 20 mi |
| Emerald Insulation & Acoustical Inc. | 5.0★ (2) | 9 mi |
| Fire Damage Patrol | 5.0★ (1) | 10 mi |
| Gold attic insulation san Francisco | 5.0★ (1) | 11 mi |
| Golden Restore inc Berkeley | 1.0★ (1) | 18 mi |
| Insulation & Air Duct Crew | 5.0★ (2) | 18 mi |
| My Steam Rug & Sofa Cleaning | 5.0★ (2) | 18 mi |
| O'Connor Insulation & Energy, Inc | 5.0★ (1) | 19 mi |
| Panda Heating & Cooling | 3.5★ (2) | 15 mi |
| Peak Core Insulation | 5.0★ (2) | 15 mi |
| PRO ATTIC RESTORATION | 5.0★ (2) | 18 mi |
| San Mateo Attic Insulation Now | 5.0★ (1) | 19 mi |
| SF Bay Attic Cleaning | 5.0★ (1) | 14 mi |
| Soundproofing Remodelers San Francisco Bay Area | 5.0★ (2) | 11 mi |
| Tigre Firestop & Insulation | 5.0★ (1) | 19 mi |
| True Arc Insulation | 5.0★ (1) | 19 mi |
| Zitro Acoustics | 5.0★ (1) | 18 mi |
How much do insulation contractors cost in San Bruno?
National price ranges in USD, not adjusted for San Bruno. 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 San Bruno insulation contractors
We scored 82 San Bruno 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 San Bruno 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 |
Insulation contractors in San Bruno: frequently asked questions
Who is the best insulation contractor in San Bruno?
By CR Score, the highest-ranked insulation contractor in San Bruno, CA is Attic Pros with a CR Score of 64/100. It has 4.8★ from 1,938 Google reviews. It is open 24/7. Alley Cat - Rodent Exclusion Company (#2) and Atticare USA (#3) follow. We ranked 82 insulation contractors on ten factors, last updated October 22, 2026.
How many insulation contractors are there in San Bruno?
ContractorsRanked ranks 82 insulation contractors serving San Bruno, CA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which insulation contractors in San Bruno are open 24/7?
23 ranked insulation contractors in San Bruno post 24/7 hours. The highest-ranked are Attic Pros (#1), Attic Cleaning Services LLC (#7) and Insulation Solutions (#10). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in San Bruno work on weekends?
61 of 82 ranked insulation contractors post Saturday hours and 46 post Sunday hours. The highest-ranked open Saturdays are Attic Pros (#1), Alley Cat - Rodent Exclusion Company (#2) and Atticare USA (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in San Bruno?
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 San Bruno. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do San Bruno insulation contractors have?
The median Google rating among 82 rated insulation contractors in San Bruno is 5.0★, with a median of 24 reviews. Attic Pros has the most, 1,938 reviews, and ranks #1. 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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do insulation contractors outside San Bruno count in this ranking?
Yes, if they are within 25 mi of the San Bruno 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 San Bruno
- October 2026: CR Scores recalculated for 82 insulation contractors serving San Bruno.
More insulation contractors and San Bruno pages
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