88/100CR Score
Ranked #1 because of its Google rating and availability: 4.9★ from 859 Google reviews, open 24/7.
- 4.9★ from 859 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1571 S Sunkist St Suite H, Anaheim, CA 92806
Best Insulation Contractors in Alhambra, CA (2026)
283 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Alhambra: CURA Termite and Pest Control, CR Score 88/100; 4.9★ from 859 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): UltraSpan Insulation, posts 24/7 hours; ranked #3 of 283.
- 2
Most-reviewed: HomeShield Pest Control, 2,945 Google reviews at 5.0★, the most of 283 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
283 Alhambra insulation contractors are ranked here by CR Score, from 8 published factors. 41 are open 24/7, 200 open Saturdays and 176 open Sundays, based on posted hours. The median Google rating is 5.0★ across 283 rated businesses.
Top 10 insulation contractors in Alhambra at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | CURA Termite and Pest Control | 88 | 4.9★ (859) | Anaheim, 24 mi away | 24/7 | Overall |
| 2 | HomeShield Pest Control | 87 | 5.0★ (2,945) | Los Angeles, 15 mi away | Sat · Evenings | Most reviews |
| 3 | UltraSpan Insulation | 86 | 4.9★ (20) | Pasadena, 3 mi away | 24/7 | Emergencies |
| 4 | Insulation Contractor - Alhambra | 86 | 4.4★ (7) | Alhambra | 24/7 | — |
| 5 | Los Angeles Insulation Masters | 85 | 4.8★ (48) | Los Angeles, 9 mi away | 24/7 | — |
| 6 | All City Animal Trapping | 85 | 4.9★ (732) | Carson, 22 mi away | Sat · Sun · Evenings | — |
| 7 | Attic Rescue Insulation Contractor | 85 | 4.9★ (78) | Castaic, 21 mi away | 24/7 | — |
| 8 | Pryvon Tune Greenline Insulation | 85 | 5.0★ (5) | Los Angeles, 5 mi away | 24/7 | — |
| 9 | Prime Climate Insulation Contractor | 85 | 4.9★ (15) | Los Angeles, 6 mi away | 24/7 | — |
| 10 | Pay Less Attic Insulation | 84 | 5.0★ (25) | Rosemead, 4 mi away | Sat · Sun · Evenings | — |
The 283 best insulation contractors in Alhambra, 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 Los Angeles, 15 mi away
87/100CR ScoreRanked #2 because of its Google rating and review volume: 5.0★ from 2,945 Google reviews, the most Google reviews on this list (2,945).
- 5.0★ from 2,945 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat 8 AM–5 PM · Sun closed
- Address
- 6108 Venice Blvd., Los Angeles, CA 90034
Based in Pasadena, 3 mi away
86/100CR ScoreRanked #3 because of its Google rating and availability: 4.9★ from 20 Google reviews, open 24/7.
- 4.9★ from 20 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 201 S Lake Ave, Pasadena, CA 91101
Based in Alhambra
86/100CR ScoreRanked #4 because of its Google rating and availability: 4.4★ from 7 Google reviews, open 24/7.
- 4.4★ from 7 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 68 W Main St, Alhambra, CA 91801
Based in Los Angeles, 9 mi away
85/100CR ScoreRanked #5 because of its Google rating and availability: 4.8★ from 48 Google reviews, open 24/7.
- 4.8★ from 48 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3224 S Central Ave, Los Angeles, CA 90011
Based in Carson, 22 mi away
85/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 732 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 732 Google reviews
- Hours
- Mon–Sun 7:30 AM–10 PM
- Address
- 1321 Alameda St, Wilmington, CA 90744
Based in Castaic, 21 mi away
85/100CR ScoreRanked #7 because of its Google rating and availability: 4.9★ from 78 Google reviews, open 24/7.
- 4.9★ from 78 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Los Angeles, 5 mi away
85/100CR ScoreRanked #8 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
- 5.0★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4253 E Cesar E Chavez Ave, Los Angeles, CA 90063
Based in Los Angeles, 6 mi away
85/100CR ScoreRanked #9 because of its Google rating and availability: 4.9★ from 15 Google reviews, open 24/7.
- 4.9★ from 15 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2256 Colorado Blvd, Los Angeles, CA 90041
Based in Rosemead, 4 mi away
84/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 25 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 4181 Temple City Blvd, Rosemead, CA 91770
Based in Alhambra
84/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.6★ from 26 Google reviews, listed on Google as “Insulation contractor”.
- 4.6★ from 26 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 901 S Fremont Ave, Alhambra, CA 91803
Based in Los Angeles, 9 mi away
84/100CR ScoreRanked #12 because of its Google rating and availability: 4.9★ from 434 Google reviews, open 24/7.
- 4.9★ from 434 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5467 W San Fernando Rd, Los Angeles, CA 90039
Based in Bell, 11 mi away
84/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 59 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 59 Google reviews
- Hours
- Mon–Sun 8 AM–7 PM
#14 Insulation Labs
Based in Van Nuys, 22 mi away
84/100CR ScoreRanked #14 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–6:30 PM · Sat–Sun 8 AM–4:30 PM
- Address
- 7023 Valjean Ave, Van Nuys, CA 91406
Based in Beverly Hills, 16 mi away
84/100CR ScoreRanked #15 because of its Google rating and availability: 4.8★ from 61 Google reviews, open 24/7.
- 4.8★ from 61 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 100 N Crescent Dr, Beverly Hills, CA 90210
Based in Sherman Oaks, 20 mi away
84/100CR ScoreRanked #16 because of its Google rating and availability: 4.8★ from 48 Google reviews, open 24/7.
- 4.8★ from 48 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 15207 Hesby St, Sherman Oaks, CA 91403
Based in Los Angeles, 8 mi away
84/100CR ScoreRanked #17 because of its Google rating and availability: 4.9★ from 13 Google reviews, open 24/7.
- 4.9★ from 13 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2219 Hyperion Ave, Los Angeles, CA 90027
Based in Azusa, 13 mi away
84/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 94 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 94 Google reviews
- Hours
- Mon–Sun 6 AM–7 PM
- Address
- 1349 N Alameda Ave, Azusa, CA 91702
Based in Silver Lake, 4 mi away
84/100CR ScoreRanked #19 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
- 5.0★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6155 York Blvd, Highland Park, CA 90042
Based in Montebello, 6 mi away
84/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 25 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 2101 Flotilla St, Montebello, CA 90640
#21 Attic Projects
Based in Glendale, 11 mi away
84/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 46 Google reviews
- Hours
- Mon–Sat 7 AM–6 PM · Sun 7 AM–4 PM
- Address
- 1709 Standard Ave, Glendale, CA 91201
Based in Los Angeles, 18 mi away
84/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 136 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 136 Google reviews
- Hours
- Mon–Thu 8 AM–6 PM · Fri–Sat 8 AM–7 PM · Sun 8 AM–4 PM
- Address
- 10940 Wilshire Blvd, Los Angeles, CA 90024
#23 Insulation Labs
Based in Fullerton, 18 mi away
84/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 135 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 135 Google reviews
- Hours
- Mon–Fri 8 AM–6:30 PM · Sat–Sun 8 AM–4:30 PM
- Address
- 1038 E Bastanchury Rd #141, Fullerton, CA 92835
#24 ZeroVap
Based in Van Nuys, 20 mi away
84/100CR ScoreRanked #24 because of its Google rating and availability: 5.0★ from 27 Google reviews, open 24/7.
- 5.0★ from 27 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 15207 Hesby St, Van Nuys, CA 91403
Based in Artesia, 16 mi away
84/100CR ScoreRanked #25 because of its Google rating and availability: 4.8★ from 51 Google reviews, open 24/7.
- 4.8★ from 51 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 18173 Pioneer Blvd, Artesia, CA 90701
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 283 ranked insulation contractors here; the rest are on their profiles.
Also serving Alhambra
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 |
|---|---|---|
| AAA Roofing and Insulation Services | 5.0★ (2) | 17 mi |
| Bob Mezzo Plastering | 5.0★ (2) | 20 mi |
| Contractor Monrovia Redzone | 5.0★ (2) | 8 mi |
| Control | 5.0★ (2) | 20 mi |
| Kiko's insulation corporation | 5.0★ (2) | 20 mi |
| Leos Insulation | 5.0★ (2) | 20 mi |
| Lone Star | 5.0★ (2) | 20 mi |
| Master Insulation & AC | 5.0★ (2) | 17 mi |
| Pro-master Painting | 1.0★ (1) | In Alhambra |
| Pure Eco Insulation | 5.0★ (2) | 20 mi |
| QUALITY FOAM | 5.0★ (2) | 10 mi |
| Residential Construction Specialist | In Alhambra | |
| Smart Budget Insulation of Burbank | 3.0★ (2) | 12 mi |
| Smart Value Insulation | 5.0★ (2) | 8 mi |
| South Gate Insulation Pros | 5.0★ (2) | 10 mi |
| The Insulation Experts | 5.0★ (2) | 14 mi |
| Titan Insulation - Pasadena | 5.0★ (2) | 4 mi |
| Validus Insulation | In Alhambra | |
| Vasitos Construction | 5.0★ (2) | 12 mi |
| Western Industrial Ceramics | 5.0★ (2) | 11 mi |
How much do insulation contractors cost in Alhambra?
National price ranges in USD, not adjusted for Alhambra. 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 Alhambra insulation contractors
We scored 283 Alhambra 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 Alhambra 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 Alhambra: frequently asked questions
Who is the best insulation contractor in Alhambra?
By CR Score, the highest-ranked insulation contractor in Alhambra, CA is CURA Termite and Pest Control with a CR Score of 88/100. It has 4.9★ from 859 Google reviews. It is open 24/7. HomeShield Pest Control (#2) and UltraSpan Insulation (#3) follow. We ranked 283 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Alhambra?
ContractorsRanked ranks 283 insulation contractors serving Alhambra, CA. 3 of them are based in Alhambra; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which insulation contractors in Alhambra are open 24/7?
41 ranked insulation contractors in Alhambra post 24/7 hours. The highest-ranked are CURA Termite and Pest Control (#1), UltraSpan Insulation (#3) and Insulation Contractor - Alhambra (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Alhambra work on weekends?
200 of 283 ranked insulation contractors post Saturday hours and 176 post Sunday hours. The highest-ranked open Saturdays are CURA Termite and Pest Control (#1), HomeShield Pest Control (#2) and UltraSpan Insulation (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Alhambra?
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 Alhambra. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Alhambra insulation contractors have?
The median Google rating among 283 rated insulation contractors in Alhambra is 5.0★, with a median of 15 reviews. HomeShield Pest Control has the most, 2,945 reviews, and ranks #2. 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 Alhambra count in this ranking?
Yes, if they are within 25 mi of the Alhambra 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 Alhambra
- October 2026: CR Scores recalculated for 283 insulation contractors serving Alhambra.
More insulation contractors and Alhambra pages
Insulation contractors near Alhambra
- Insulation contractors in San Gabriel, CA286 ranked
- Insulation contractors in South Pasadena, CA262 ranked
- Insulation contractors in East San Gabriel, CA285 ranked
- Insulation contractors in San Marino, CA260 ranked
- Insulation contractors in Monterey Park, CA293 ranked
- Insulation contractors in Rosemead, CA284 ranked
- Insulation contractors in South San Gabriel, CA292 ranked
- Insulation contractors in Pasadena, CA238 ranked
- Insulation contractors in Temple City, CA262 ranked
- Insulation contractors in East Pasadena, CA238 ranked
Other trades in Alhambra
- Roofers in Alhambra2105 ranked
- Plumbers in Alhambra1858 ranked
- Electricians in Alhambra1332 ranked
- HVAC contractors in Alhambra1846 ranked
- General contractors in Alhambra2073 ranked
- Painters in Alhambra332 ranked
- Landscapers in Alhambra210 ranked
- Handymen in Alhambra217 ranked
- Kitchen remodelers in Alhambra981 ranked
- Bathroom remodelers in Alhambra947 ranked
- Flooring contractors in Alhambra680 ranked
- Tile installers in Alhambra97 ranked
- Drywall contractors in Alhambra25 ranked
- Concrete contractors in Alhambra460 ranked
- Fence contractors in Alhambra448 ranked
- Deck builders in Alhambra194 ranked
- Siding contractors in Alhambra123 ranked
- Window installers in Alhambra679 ranked
- Gutter installers in Alhambra235 ranked
- Solar installers in Alhambra643 ranked
- Garage door repair companies in Alhambra414 ranked
- Foundation repair companies in Alhambra254 ranked
- Tree services in Alhambra370 ranked
- Masonry contractors in Alhambra264 ranked
- Water damage restoration companies in Alhambra1314 ranked
- Home builders in Alhambra863 ranked
- Demolition contractors in Alhambra176 ranked
- All contractors in Alhambra