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 Claremont, CA (2026)
142 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Claremont: CURA Termite and Pest Control, CR Score 88/100; 4.9★ from 859 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Gopher Patrol, posts 24/7 hours; ranked #2 of 142.
- 18
Most-reviewed: RighTime Home Services, 3,741 Google reviews at 4.7★, the most of 142 ranked; ranked #18.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
142 Claremont insulation contractors are ranked here by CR Score, from 8 published factors. 17 are open 24/7, 103 open Saturdays and 91 open Sundays, based on posted hours. The median Google rating is 5.0★ across 142 rated businesses.
Top 10 insulation contractors in Claremont 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, 22 mi away | 24/7 | Overall |
| 2 | Gopher Patrol | 86 | 4.9★ (182) | Riverside, 19 mi away | 24/7 | Emergencies |
| 3 | Attic Projects | 86 | 5.0★ (168) | Rancho Cucamonga, 9 mi away | Sat · Sun · Evenings | — |
| 4 | Priority Attic Insulation | 84 | 4.6★ (47) | Glendora, 8 mi away | 24/7 | — |
| 5 | Attic Projects | 84 | 4.9★ (584) | Orange, 23 mi away | Sat · Sun · Evenings | — |
| 6 | SoCal Comfort Shield Insulation | 84 | 5.0★ (25) | Montclair, 3 mi away | Sat · Sun · Evenings | — |
| 7 | Brad's Insulation | 84 | 4.9★ (94) | Azusa, 11 mi away | Sat · Sun · Evenings | — |
| 8 | Insulation Labs | 83 | 5.0★ (135) | Fullerton, 18 mi away | Sat · Sun · Evenings | — |
| 9 | NexGen HVAC & Plumbing | 83 | 4.8★ (708) | Fontana, 12 mi away | 24/7 | — |
| 10 | My Insulation Guy | 83 | 4.9★ (155) | Riverside, 19 mi away | Sat · Sun · Evenings | — |
The 142 best insulation contractors in Claremont, 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 Riverside, 19 mi away
86/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 182 Google reviews, open 24/7.
- 4.9★ from 182 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 12155 Magnolia Ave Ste. 10B, Riverside, CA 92503
Based in Rancho Cucamonga, 9 mi away
86/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 168 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 168 Google reviews
- Hours
- Mon–Fri 7 AM–8 PM · Sat 8 AM–6 PM · Sun 7 AM–8 PM
- Address
- 8690 Red Oak St, Rancho Cucamonga, CA 91730
Based in Glendora, 8 mi away
84/100CR ScoreRanked #4 because of its Google rating and availability: 4.6★ from 47 Google reviews, open 24/7.
- 4.6★ from 47 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1030 E Rte 66, Glendora, CA 91740
Based in Orange, 23 mi away
84/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 584 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 584 Google reviews
- Hours
- Mon–Fri 7 AM–8 PM · Sat 8 AM–6 PM · Sun 7 AM–8 PM
- Address
- 1607 W Orange Grove Ave Suite A, Orange, CA 92868
Based in Montclair, 3 mi away
84/100CR ScoreRanked #6 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
- 4700 Brooks St, Montclair, CA 91763
Based in Azusa, 11 mi away
84/100CR ScoreRanked #7 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 Fullerton, 18 mi away
83/100CR ScoreRanked #8 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
Based in Fontana, 12 mi away
83/100CR ScoreRanked #9 because of its Google rating and availability: 4.8★ from 708 Google reviews, open 24/7.
- 4.8★ from 708 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10820 Mulberry Ave, Fontana, CA 92337
Based in Riverside, 19 mi away
83/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 155 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 155 Google reviews
- Hours
- Mon–Thu 7 AM–8 PM · Fri 7 AM–7 PM · Sat–Sun 7 AM–8 PM
- Address
- 4193 Flat Rock Rd suite 200, Riverside, CA 92505
Based in Pomona, 3 mi away
83/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 14 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 1649 E Mission Blvd, Pomona, CA 91766
Based in Anaheim, 17 mi away
83/100CR ScoreRanked #12 because of its Google rating and availability: 4.7★ from 2,250 Google reviews, open 24/7.
- 4.7★ from 2,250 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5472 E La Palma Ave, Anaheim, CA 92807
#13 All
Based in San Dimas, 7 mi away
83/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 27 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 27 Google reviews
- Hours
- Mon–Sun 8 AM–10 PM
- Address
- 1453 W Arrow Hwy, San Dimas, CA 91773
#14 Eliminix
Based in Claremont
82/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 8 Google reviews
- Hours
- Mon–Fri 7 AM–8 PM · Sat 7 AM–6 PM · Sun 7 AM–5 PM
Based in Ontario, 6 mi away
82/100CR ScoreRanked #15 because of its Google rating and availability: 4.6★ from 507 Google reviews, open 24/7.
- 4.6★ from 507 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1428 S Grove Ave Unit B, Ontario, CA 91761
Based in Chino, 4 mi away
82/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.7★ from 20 Google reviews, listed on Google as “Insulation contractor”.
- 4.7★ from 20 Google reviews
- Hours
- Mon–Sun 7 AM–8 PM
- Address
- 11924 Del Mar Ave, Chino, CA 91710
Based in Covina, 9 mi away
82/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.8★ from 31 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 31 Google reviews
- Hours
- Mon–Fri 8 AM–9 PM · Sat 7 AM–8 PM · Sun 8 AM–10 PM
- Address
- 1343 N Grand Ave A, Covina, CA 91724
Based in Corona, 23 mi away
82/100CR ScoreRanked #18 because of its Google rating and review volume: 4.7★ from 3,741 Google reviews, the most Google reviews on this list (3,741).
- 4.7★ from 3,741 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3959 Temescal Canyon Rd, Corona, CA 92883
#19 Tiger Foam
Based in La Puente, 14 mi away
81/100CR ScoreRanked #19 because of its Google rating and availability: 4.0★ from 8 Google reviews, open 24/7.
- 4.0★ from 8 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 15900 Main St, La Puente, CA 91744
Based in Arcadia, 16 mi away
81/100CR ScoreRanked #20 because of its Google rating and availability: 4.7★ from 538 Google reviews, open 24/7.
- 4.7★ from 538 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5441 Cogswell Rd Unit F, Arcadia, CA 91006
#21 Attic Advisor
Based in Riverside, 19 mi away
80/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 37 Google reviews
- Hours
- Mon–Fri 9 AM–7 PM · Sat–Sun 9 AM–5 PM
- Address
- 11801 Pierce St Suite 200, Riverside, CA 92505
Based in Fullerton, 19 mi away
80/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.9★ from 44 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 44 Google reviews
- Hours
- Mon–Fri 7 AM–8 PM · Sat 7 AM–7 PM · Sun 7 AM–8 PM
- Address
- 2461 Orangethorpe Ave #231, Fullerton, CA 92831
Based in Placentia, 17 mi away
80/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 29 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 981 S Vía Rodeo, Placentia, CA 92870
Based in San Dimas, 6 mi away
80/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 4 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 409 Borrego Ct, San Dimas, CA 91773
Based in Placentia, 18 mi away
80/100CR ScoreRanked #25 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–Sun 7 AM–7 PM
- Address
- 377 E Chapman Ave, Placentia, CA 92870
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 142 ranked insulation contractors here; the rest are on their profiles.
Also serving Claremont
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 |
|---|---|---|
| ALCAL Specialty Contracting Ontario - Home Service Division | 3.0★ (2) | 10 mi |
| All Star Install LLC | 5.0★ (2) | 8 mi |
| Bob Mezzo Plastering | 5.0★ (2) | 20 mi |
| Builders' Insulation | 5.0★ (2) | 18 mi |
| Cal Cool Construction & Supply CSLB#678290 | In Claremont | |
| Canyon Insulation Inc | 5.0★ (2) | 17 mi |
| Contractor Monrovia Redzone | 5.0★ (2) | 16 mi |
| Fireproofing Cleaning Service | 4.5★ (2) | 15 mi |
| Jose Rodriguez Insulation | 3.0★ (2) | 19 mi |
| Kiko's insulation corporation | 5.0★ (2) | 6 mi |
| Lone Star | 5.0★ (2) | 6 mi |
| Performance Contracting Inc | 5.0★ (2) | 17 mi |
| QUALITY FOAM | 5.0★ (2) | 13 mi |
| Semper fi Handyman | 2.5★ (2) | 2 mi |
| Smart Value Insulation | 5.0★ (2) | 16 mi |
| Thermal Energy Products | 3.0★ (2) | 16 mi |
| Thermal Nest Insulation of Anaheim | 5.0★ (2) | 19 mi |
| TOP Chimney Cleaning & Chimney Repairs Serv, | 4.6★ (9) | In Claremont |
| Vasitos Construction | 5.0★ (2) | 14 mi |
| Western Industrial Ceramics | 5.0★ (2) | 22 mi |
How much do insulation contractors cost in Claremont?
National price ranges in USD, not adjusted for Claremont. 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 Claremont insulation contractors
We scored 142 Claremont 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 Claremont 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 Claremont: frequently asked questions
Who is the best insulation contractor in Claremont?
By CR Score, the highest-ranked insulation contractor in Claremont, 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. Gopher Patrol (#2) and Attic Projects (#3) follow. We ranked 142 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Claremont?
ContractorsRanked ranks 142 insulation contractors serving Claremont, CA. 1 of them is based in Claremont; 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 Claremont are open 24/7?
17 ranked insulation contractors in Claremont post 24/7 hours. The highest-ranked are CURA Termite and Pest Control (#1), Gopher Patrol (#2) and Priority Attic Insulation (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Claremont work on weekends?
103 of 142 ranked insulation contractors post Saturday hours and 91 post Sunday hours. The highest-ranked open Saturdays are CURA Termite and Pest Control (#1), Gopher Patrol (#2) and Attic Projects (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Claremont?
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 Claremont. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Claremont insulation contractors have?
The median Google rating among 142 rated insulation contractors in Claremont is 5.0★, with a median of 21 reviews. RighTime Home Services has the most, 3,741 reviews, and ranks #18. 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 Claremont count in this ranking?
Yes, if they are within 25 mi of the Claremont 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 Claremont
- October 2026: CR Scores recalculated for 142 insulation contractors serving Claremont.
- October 2026: 1 duplicate listing merged.
More insulation contractors and Claremont pages
Insulation contractors near Claremont
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