62/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 1,938 Google reviews, the most in El Granada.
- 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 El Granada, CA (2026)
57 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in El Granada: Attic Pros, CR Score 62/100; 4.8★ from 1,938 Google reviews; open 24/7.
- 7
Best for emergencies (open 24/7): Insulation Solutions, posts 24/7 hours; ranked #7 of 57.
- 9
Most-reviewed: Attic Elite, 474 Google reviews at 4.9★, the most of 57 ranked after Attic Pros; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
57 El Granada insulation contractors are ranked here by CR Score, from ten published factors. 15 are open 24/7, 40 open Saturdays and 29 open Sundays, based on posted hours. The median Google rating is 4.9★ across 57 rated businesses.
Top 10 insulation contractors in El Granada at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Attic Pros | 62 | 4.8★ (1,938) | Oakland, 23 mi away | 24/7 | Overall |
| 2 | Alley Cat - Rodent Exclusion Company | 59 | 4.9★ (413) | San Francisco, 19 mi away | Sat · Sun · Evenings | — |
| 3 | Attic Star | 59 | 4.9★ (156) | Redwood City, 14 mi away | Sat · Sun · Evenings | — |
| 4 | Atticare USA | 58 | 4.8★ (439) | San Leandro, 23 mi away | Sat · Sun · Evenings | — |
| 5 | American Attic | 57 | 5.0★ (219) | Oakland, 24 mi away | Sat · Sun | — |
| 6 | Rywen Insulation Inc. | 57 | 5.0★ (151) | San Leandro, 22 mi away | Sat · Sun | — |
| 7 | Insulation Solutions | 57 | 5.0★ (11) | San Mateo, 10 mi away | 24/7 | Emergencies |
| 8 | Reactic Restoration | 57 | 5.0★ (12) | San Carlos, 11 mi away | 24/7 | — |
| 9 | Attic Elite | 57 | 4.9★ (474) | Newark, 25 mi away | Sun | Most reviews |
| 10 | Cal Spray Foam Insulation | 56 | 4.9★ (34) | Alameda, 8 mi away | Sat · Evenings | — |
The 57 best insulation contractors in El Granada, 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, 19 mi away
59/100CR 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 Attic Star
Based in Redwood City, 14 mi away
59/100CR ScoreRanked #3 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
#4 Atticare USA
Based in San Leandro, 23 mi away
58/100CR ScoreRanked #4 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, 24 mi away
57/100CR ScoreRanked #5 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, 22 mi away
57/100CR ScoreRanked #6 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
Based in San Mateo, 10 mi away
57/100CR ScoreRanked #7 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 San Carlos, 11 mi away
57/100CR ScoreRanked #8 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
#9 Attic Elite
Based in Newark, 25 mi away
57/100CR ScoreRanked #9 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 Alameda, 8 mi away
56/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 34 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 34 Google reviews
- Hours
- Mon–Sat 6 AM–9 PM · Sun closed
Based in Hayward, 25 mi away
56/100CR 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 Palo Alto, 19 mi away
56/100CR ScoreRanked #12 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
#13 Trap Guard
Based in Redwood Shores, 18 mi away
56/100CR ScoreRanked #13 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
Based in Redwood Shores, 8 mi away
55/100CR ScoreRanked #14 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 Mateo, 10 mi away
55/100CR ScoreRanked #15 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 Daly City, 11 mi away
55/100CR ScoreRanked #16 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 Oakland, 23 mi away
55/100CR ScoreRanked #17 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
#18 Reside Homes
Based in Alameda, 6 mi away
55/100CR ScoreRanked #18 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
- Hours
- Mon–Fri 7 AM–7 PM · Sat 7 AM–5 PM · Sun closed
Based in San Mateo, 9 mi away
54/100CR ScoreRanked #19 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
Based in Mountain View, 23 mi away
54/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 34 Google reviews
- Hours
- Mon–Sun 9 AM–9 PM
- Address
- 472 Castro St, Mountain View, CA 94041
Based in Burlingame, 9 mi away
54/100CR ScoreRanked #21 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 Redwood Shores, 14 mi away
54/100CR 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–7:30 PM
Based in Alameda, 19 mi away
54/100CR 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 San Francisco, 20 mi away
53/100CR ScoreRanked #24 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 San Francisco, 23 mi away
53/100CR ScoreRanked #25 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
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 57 ranked insulation contractors here; the rest are on their profiles.
Also serving El Granada
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 |
| Brandon's Attic Control | 5.0★ (2) | 24 mi |
| Certified Pro Restorations, INC | 5.0★ (1) | 17 mi |
| Emerald Insulation & Acoustical Inc. | 5.0★ (2) | 18 mi |
| Fire Damage Patrol | 5.0★ (1) | 18 mi |
| Gold attic insulation san Francisco | 5.0★ (1) | 20 mi |
| Insulation & Air Duct Crew | 5.0★ (2) | 23 mi |
| My Steam Rug & Sofa Cleaning | 5.0★ (2) | 16 mi |
| O'Connor Insulation & Energy, Inc | 5.0★ (1) | 23 mi |
| Panda Heating & Cooling | 3.5★ (2) | 23 mi |
| Peak Core Insulation | 5.0★ (2) | 24 mi |
| Premium Shield | 5.0★ (1) | 25 mi |
| PRO ATTIC RESTORATION | 5.0★ (2) | 25 mi |
| San Mateo Attic Insulation Now | 5.0★ (1) | 15 mi |
| SF Bay Attic Cleaning | 5.0★ (1) | 17 mi |
| Silicon Thermal | 4.0★ (1) | 23 mi |
| Soundproofing Remodelers San Francisco Bay Area | 5.0★ (2) | 19 mi |
| Tigre Firestop & Insulation | 5.0★ (1) | 24 mi |
| True Arc Insulation | 5.0★ (1) | 23 mi |
| Zitro Acoustics | 5.0★ (1) | 24 mi |
How much do insulation contractors cost in El Granada?
National price ranges in USD, not adjusted for El Granada. 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 El Granada insulation contractors
We scored 57 El Granada 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 El Granada 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 El Granada: frequently asked questions
Who is the best insulation contractor in El Granada?
By CR Score, the highest-ranked insulation contractor in El Granada, CA is Attic Pros with a CR Score of 62/100. It has 4.8★ from 1,938 Google reviews. It is open 24/7. Alley Cat - Rodent Exclusion Company (#2) and Attic Star (#3) follow. We ranked 57 insulation contractors on ten factors, last updated October 22, 2026.
How many insulation contractors are there in El Granada?
ContractorsRanked ranks 57 insulation contractors serving El Granada, CA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which insulation contractors in El Granada are open 24/7?
15 ranked insulation contractors in El Granada post 24/7 hours. The highest-ranked are Attic Pros (#1), Insulation Solutions (#7) and Reactic Restoration (#8). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in El Granada work on weekends?
40 of 57 ranked insulation contractors post Saturday hours and 29 post Sunday hours. The highest-ranked open Saturdays are Attic Pros (#1), Alley Cat - Rodent Exclusion Company (#2) and Attic Star (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in El Granada?
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 El Granada. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do El Granada insulation contractors have?
The median Google rating among 57 rated insulation contractors in El Granada is 4.9★, with a median of 29 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 El Granada count in this ranking?
Yes, if they are within 25 mi of the El Granada 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 El Granada
- October 2026: CR Scores recalculated for 57 insulation contractors serving El Granada.
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