89/100CR Score
Ranked #1 because of its Google rating and availability: 4.8★ from 1,938 Google reviews, open 24/7.
- 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 Stanford, CA (2026)
94 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Stanford: Attic Pros, CR Score 89/100; 4.8★ from 1,938 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Reactic Restoration, posts 24/7 hours; ranked #2 of 94.
- 4
Most-reviewed: Service Champions, 3,407 Google reviews at 4.9★, the most of 94 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
94 Stanford insulation contractors are ranked here by CR Score, from 8 published factors. 33 are open 24/7, 69 open Saturdays and 64 open Sundays, based on posted hours. The median Google rating is 5.0★ across 94 rated businesses.
Top 10 insulation contractors in Stanford at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Attic Pros | 89 | 4.8★ (1,938) | Oakland, 22 mi away | 24/7 | Overall |
| 2 | Reactic Restoration | 87 | 5.0★ (16) | Palo Alto, 1 mi away | 24/7 | Emergencies |
| 3 | Attic Star | 87 | 4.9★ (156) | Redwood City, 4 mi away | Sat · Sun · Evenings | — |
| 4 | Service Champions | 86 | 4.9★ (3,407) | San Jose, 15 mi away | 24/7 | Most reviews |
| 5 | Trap Guard | 86 | 5.0★ (13) | Redwood Shores, 1 mi away | 24/7 | — |
| 6 | Reactic Restoration | 85 | 5.0★ (12) | San Carlos, 8 mi away | 24/7 | — |
| 7 | Pro Attic Restoration | 84 | 4.9★ (48) | Hayward, 18 mi away | 24/7 | — |
| 8 | Los Gatos Top Insulation | 84 | 4.9★ (86) | Los Gatos, 17 mi away | 24/7 | — |
| 9 | Delta Spray Foam Insulation | 84 | 5.0★ (34) | Mountain View, 5 mi away | Sat · Sun · Evenings | — |
| 10 | 911 Attic Insulation | 84 | 5.0★ (19) | Fremont, 15 mi away | 24/7 | — |
The 94 best insulation contractors in Stanford, 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 Palo Alto, 1 mi away
87/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 16 Google reviews, open 24/7.
- 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
#3 Attic Star
Based in Redwood City, 4 mi away
87/100CR 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
Based in San Jose, 15 mi away
86/100CR ScoreRanked #4 because of its Google rating and review volume: 4.9★ from 3,407 Google reviews, the most Google reviews on this list (3,407).
- 4.9★ from 3,407 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2161 Del Franco St, San Jose, CA 95131
#5 Trap Guard
Based in Redwood Shores, 1 mi away
86/100CR ScoreRanked #5 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
- 5.0★ from 13 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in San Carlos, 8 mi away
85/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 12 Google reviews, open 24/7.
- 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 Hayward, 18 mi away
84/100CR ScoreRanked #7 because of its Google rating and availability: 4.9★ from 48 Google reviews, open 24/7.
- 4.9★ from 48 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1340 A St, Hayward, CA 94541
Based in Los Gatos, 17 mi away
84/100CR ScoreRanked #8 because of its Google rating and availability: 4.9★ from 86 Google reviews, open 24/7.
- 4.9★ from 86 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 15 Montebello Way, Los Gatos, CA 95030
Based in Mountain View, 5 mi away
84/100CR ScoreRanked #9 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 Fremont, 15 mi away
84/100CR ScoreRanked #10 because of its Google rating and availability: 5.0★ from 19 Google reviews, open 24/7.
- 5.0★ from 19 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#11 Attic Pros
Based in San Jose, 20 mi away
84/100CR ScoreRanked #11 because of its Google rating and availability: 4.7★ from 104 Google reviews, open 24/7.
- 4.7★ from 104 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3071 Monterey Rd suit b, San Jose, CA 95111
Based in San Mateo, 11 mi away
84/100CR ScoreRanked #12 because of its Google rating and availability: 5.0★ from 11 Google reviews, open 24/7.
- 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 Jose, 15 mi away
84/100CR ScoreRanked #13 because of its Google rating and availability: 4.9★ from 1,142 Google reviews, open 24/7.
- 4.9★ from 1,142 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1310 N 4th St, San Jose, CA 95112
Based in Fremont, 13 mi away
83/100CR ScoreRanked #14 because of its Google rating and availability: 5.0★ from 11 Google reviews, open 24/7.
- 5.0★ from 11 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 44240 Fremont Blvd Suite 16, Fremont, CA 94538
#15 American Attic
Based in Oakland, 22 mi away
83/100CR ScoreRanked #15 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
#16 Attic Elite
Based in Newark, 11 mi away
83/100CR ScoreRanked #16 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
#17 Atticare USA
Based in San Leandro, 21 mi away
83/100CR ScoreRanked #17 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 San Leandro, 21 mi away
83/100CR ScoreRanked #18 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 Dublin, 23 mi away
83/100CR ScoreRanked #19 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
Based in Palo Alto, 3 mi away
83/100CR ScoreRanked #20 because of its Google rating and availability: 4.9★ from 87 Google reviews, open 24/7.
- 4.9★ from 87 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2100 Geng Rd Suit 210, Palo Alto, CA 94303
Based in Pleasanton, 23 mi away
82/100CR ScoreRanked #21 because of its Google rating and availability: 4.8★ from 2,337 Google reviews, open 24/7.
- 4.8★ from 2,337 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7020 Commerce Dr, Pleasanton, CA 94588
Based in Fremont, 15 mi away
82/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 31 Google reviews
- Hours
- Mon–Sun 9 AM–9 PM
- Address
- 37364 Niles Blvd, Fremont, CA 94536
Based in Fremont, 13 mi away
81/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 23 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun 9 AM–2 PM
- Address
- 3051 Quantum Dr #2411, Fremont, CA 94538
Based in Oakland, 25 mi away
81/100CR ScoreRanked #24 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 San Jose, 16 mi away
81/100CR ScoreRanked #25 because of its Google rating and availability: 4.6★ from 14 Google reviews, open 24/7.
- 4.6★ from 14 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1530 Southwest Expy Suite 221, San Jose, CA 95126
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 94 ranked insulation contractors here; the rest are on their profiles.
Also serving Stanford
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 |
|---|---|---|
| Attic Bros of Milpitas | 5.0★ (2) | 15 mi |
| Attic Insulation Remove & Install | 1.0★ (1) | 15 mi |
| Attic Wise Cleaning | 5.0★ (2) | 15 mi |
| Atticali of Sunnyvale | 5.0★ (1) | 8 mi |
| Bear Insulation and Services | 5.0★ (2) | 11 mi |
| Certified Pro Restorations, INC | 5.0★ (1) | 1 mi |
| Equinox Roofing Solutions | 5.0★ (1) | 13 mi |
| Insulation & Air Duct Crew | 5.0★ (2) | 17 mi |
| My Steam Rug & Sofa Cleaning | 5.0★ (2) | 2 mi |
| Panda Heating & Cooling | 3.5★ (2) | 22 mi |
| Premium Shield | 5.0★ (1) | 13 mi |
| PRO ATTIC RESTORATION | 5.0★ (2) | 18 mi |
| San Mateo Attic Insulation Now | 5.0★ (1) | 6 mi |
| Santa Clara A+ Insulation Service | 5.0★ (2) | 15 mi |
| SF Bay Attic Cleaning | 5.0★ (1) | 10 mi |
| Signature Home Insulation and Rodent Control | 5.0★ (1) | 15 mi |
| Silicon Thermal | 4.0★ (1) | 5 mi |
| Silicon Valley Attic Cleaning | 5.0★ (1) | 15 mi |
| Silver Peak Construction Group Inc. | 5.0★ (2) | 15 mi |
| True Arc Insulation | 5.0★ (1) | 13 mi |
How much do insulation contractors cost in Stanford?
National price ranges in USD, not adjusted for Stanford. 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 Stanford insulation contractors
We scored 94 Stanford 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 Stanford 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 Stanford: frequently asked questions
Who is the best insulation contractor in Stanford?
By CR Score, the highest-ranked insulation contractor in Stanford, CA is Attic Pros with a CR Score of 89/100. It has 4.8★ from 1,938 Google reviews. It is open 24/7. Reactic Restoration (#2) and Attic Star (#3) follow. We ranked 94 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Stanford?
ContractorsRanked ranks 94 insulation contractors serving Stanford, CA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which insulation contractors in Stanford are open 24/7?
33 ranked insulation contractors in Stanford post 24/7 hours. The highest-ranked are Attic Pros (#1), Reactic Restoration (#2) and Service Champions (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Stanford work on weekends?
69 of 94 ranked insulation contractors post Saturday hours and 64 post Sunday hours. The highest-ranked open Saturdays are Attic Pros (#1), Reactic Restoration (#2) and Attic Star (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Stanford?
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 Stanford. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Stanford insulation contractors have?
The median Google rating among 94 rated insulation contractors in Stanford is 5.0★, with a median of 24 reviews. Service Champions has the most, 3,407 reviews, and ranks #4. 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 Stanford count in this ranking?
Yes, if they are within 25 mi of the Stanford 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 Stanford
- October 2026: CR Scores recalculated for 94 insulation contractors serving Stanford.
More insulation contractors and Stanford pages
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