90/100CR 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 Covina, CA (2026)
187 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Covina: CURA Termite and Pest Control, CR Score 90/100; 4.9★ from 859 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Priority Attic Insulation, posts 24/7 hours; ranked #3 of 187.
- 10
Most-reviewed: NexGen HVAC & Plumbing, 2,250 Google reviews at 4.7★, the most of 187 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
187 Covina insulation contractors are ranked here by CR Score, from 8 published factors. 26 are open 24/7, 139 open Saturdays and 114 open Sundays, based on posted hours. The median Google rating is 5.0★ across 187 rated businesses.
Top 10 insulation contractors in Covina at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | CURA Termite and Pest Control | 90 | 4.9★ (859) | Anaheim, 19 mi away | 24/7 | Overall |
| 2 | Brad's Insulation | 86 | 4.9★ (94) | Azusa, 4 mi away | Sat · Sun · Evenings | — |
| 3 | Priority Attic Insulation | 86 | 4.6★ (47) | Glendora, 4 mi away | 24/7 | Emergencies |
| 4 | Attic Projects | 85 | 4.9★ (584) | Orange, 20 mi away | Sat · Sun · Evenings | — |
| 5 | Insulation Labs | 85 | 5.0★ (135) | Fullerton, 13 mi away | Sat · Sun · Evenings | — |
| 6 | First Defense Insulation | 85 | 4.8★ (31) | Covina | Sat · Sun · Evenings | — |
| 7 | Attic Projects | 84 | 5.0★ (168) | Rancho Cucamonga, 18 mi away | Sat · Sun · Evenings | — |
| 8 | All | 84 | 4.9★ (27) | San Dimas, 3 mi away | Sat · Sun · Evenings | — |
| 9 | NexGen HVAC & Plumbing | 84 | 4.7★ (538) | Arcadia, 6 mi away | 24/7 | — |
| 10 | NexGen HVAC & Plumbing | 83 | 4.7★ (2,250) | Anaheim, 17 mi away | 24/7 | Most reviews |
The 187 best insulation contractors in Covina, 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 Azusa, 4 mi away
86/100CR ScoreRanked #2 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 Glendora, 4 mi away
86/100CR ScoreRanked #3 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, 20 mi away
85/100CR ScoreRanked #4 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 Fullerton, 13 mi away
85/100CR ScoreRanked #5 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 Covina
85/100CR ScoreRanked #6 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 Rancho Cucamonga, 18 mi away
84/100CR ScoreRanked #7 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
#8 All
Based in San Dimas, 3 mi away
84/100CR ScoreRanked #8 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
Based in Arcadia, 6 mi away
84/100CR ScoreRanked #9 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
Based in Anaheim, 17 mi away
83/100CR ScoreRanked #10 because of its Google rating and review volume: 4.7★ from 2,250 Google reviews, the most Google reviews on this list (2,250).
- 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
#11 Tiger Foam
Based in La Puente, 6 mi away
83/100CR ScoreRanked #11 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 Artesia, 19 mi away
83/100CR ScoreRanked #12 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
Based in Pasadena, 14 mi away
83/100CR ScoreRanked #13 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 Rosemead, 10 mi away
83/100CR ScoreRanked #14 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 West Covina, 4 mi away
82/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 10 Google reviews
- Hours
- Mon–Sun 7 AM–8 PM
- Address
- 1519 E Amar Rd, West Covina, CA 91792
Based in Montclair, 11 mi away
82/100CR ScoreRanked #16 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
#17 Rodent Free
Based in Santa Ana, 24 mi away
82/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 22 Google reviews, open 24/7.
- 5.0★ from 22 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 600 W Santa Ana Blvd Ste 114a #240, Santa Ana, CA 92701
Based in Los Angeles, 22 mi away
82/100CR ScoreRanked #18 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 Bell, 19 mi away
82/100CR ScoreRanked #19 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
Based in Alhambra, 14 mi away
82/100CR ScoreRanked #20 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 Santa Fe Springs, 13 mi away
82/100CR ScoreRanked #21 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
- 11912 Rivera Rd, Santa Fe Springs, CA 90670
Based in Fullerton, 16 mi away
82/100CR 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 Duarte, 5 mi away
82/100CR ScoreRanked #23 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–Sun 7 AM–7 PM
- Address
- 1700 Evergreen St, Duarte, CA 91010
Based in Pomona, 10 mi away
81/100CR ScoreRanked #24 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 Fullerton, 16 mi away
81/100CR ScoreRanked #25 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–8 PM
- Address
- 1303 W Valencia Dr #233, Fullerton, CA 92833
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 187 ranked insulation contractors here; the rest are on their profiles.
Also serving Covina
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 |
|---|---|---|
| Air Conditioning & Heating Covina HVAC Contractor | 4.9★ (47) | In Covina |
| ALCAL Specialty Contracting Ontario - Home Service Division | 3.0★ (2) | 20 mi |
| All Star Install LLC | 5.0★ (2) | 18 mi |
| Big Boy Roofing | 5.0★ (11) | In Covina |
| Bob Mezzo Plastering | 5.0★ (2) | 16 mi |
| Contractor Monrovia Redzone | 5.0★ (2) | 7 mi |
| Kiko's insulation corporation | 5.0★ (2) | 8 mi |
| Lone Star | 5.0★ (2) | 8 mi |
| NDM Insulation | 5.0★ (2) | 20 mi |
| Performance Contracting Inc | 5.0★ (2) | 16 mi |
| QUALITY FOAM | 5.0★ (2) | 3 mi |
| Semper fi Handyman | 2.5★ (2) | 9 mi |
| Smart Value Insulation | 5.0★ (2) | 6 mi |
| South Gate Insulation Pros | 5.0★ (2) | 19 mi |
| Thermal Energy Products | 3.0★ (2) | 21 mi |
| Thermal Nest Insulation of Anaheim | 5.0★ (2) | 17 mi |
| Titan Insulation - Pasadena | 5.0★ (2) | 14 mi |
| Vasitos Construction | 5.0★ (2) | 5 mi |
| Western Industrial Ceramics | 5.0★ (2) | 14 mi |
| Wintri | 5.0★ (121) | In Covina |
How much do insulation contractors cost in Covina?
National price ranges in USD, not adjusted for Covina. 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 Covina insulation contractors
We scored 187 Covina 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 Covina 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 Covina: frequently asked questions
Who is the best insulation contractor in Covina?
By CR Score, the highest-ranked insulation contractor in Covina, CA is CURA Termite and Pest Control with a CR Score of 90/100. It has 4.9★ from 859 Google reviews. It is open 24/7. Brad's Insulation (#2) and Priority Attic Insulation (#3) follow. We ranked 187 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Covina?
ContractorsRanked ranks 187 insulation contractors serving Covina, CA. 1 of them is based in Covina; 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 Covina are open 24/7?
26 ranked insulation contractors in Covina post 24/7 hours. The highest-ranked are CURA Termite and Pest Control (#1), Priority Attic Insulation (#3) and NexGen HVAC & Plumbing (#9). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Covina work on weekends?
139 of 187 ranked insulation contractors post Saturday hours and 114 post Sunday hours. The highest-ranked open Saturdays are CURA Termite and Pest Control (#1), Brad's Insulation (#2) and Priority Attic Insulation (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Covina?
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 Covina. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Covina insulation contractors have?
The median Google rating among 187 rated insulation contractors in Covina is 5.0★, with a median of 15 reviews. NexGen HVAC & Plumbing has the most, 2,250 reviews, and ranks #10. 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 Covina count in this ranking?
Yes, if they are within 25 mi of the Covina 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 Covina
- October 2026: CR Scores recalculated for 187 insulation contractors serving Covina.
More insulation contractors and Covina pages
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- All contractors in Covina