93/100CR Score
Ranked #1 because of its Google rating and availability: 4.7★ from 1,769 Google reviews, open 24/7.
- 4.7★ from 1,769 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 21800 Van Buren Boulevard Building 4, Riverside, CA 92518
Best Insulation Contractors in Riverside, CA (2026)
53 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Riverside: NexGen HVAC & Plumbing, CR Score 93/100; 4.7★ from 1,769 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Gopher Patrol, posts 24/7 hours; ranked #2 of 53.
- 5
Most-reviewed: RighTime Home Services, 3,741 Google reviews at 4.7★, the most of 53 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
53 Riverside insulation contractors are ranked here by CR Score, from 8 published factors. 11 are open 24/7, 35 open Saturdays and 31 open Sundays, based on posted hours. The median Google rating is 4.8★ across 53 rated businesses.
Top 10 insulation contractors in Riverside at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | NexGen HVAC & Plumbing | 93 | 4.7★ (1,769) | Riverside | 24/7 | Overall |
| 2 | Gopher Patrol | 91 | 4.9★ (182) | Riverside | 24/7 | Emergencies |
| 3 | My Insulation Guy | 88 | 4.9★ (155) | Riverside | Sat · Sun · Evenings | — |
| 4 | Attic Advisor | 85 | 5.0★ (37) | Riverside | Sat · Sun · Evenings | — |
| 5 | RighTime Home Services | 85 | 4.7★ (3,741) | Corona, 11 mi away | 24/7 | Most reviews |
| 6 | Ameriwest Home Services | 85 | 5.0★ (203) | Riverside | Sat | — |
| 7 | Attic Projects | 85 | 5.0★ (168) | Rancho Cucamonga, 14 mi away | Sat · Sun · Evenings | — |
| 8 | RKM Heating and Air Conditioning | 84 | 4.9★ (1,073) | Riverside | 24/7 | — |
| 9 | All Type Insulation Services, Inc | 84 | 5.0★ (20) | Riverside | Sat · Sun · Evenings | — |
| 10 | NexGen HVAC & Plumbing | 84 | 4.8★ (708) | Fontana, 10 mi away | 24/7 | — |
The 53 best insulation contractors in Riverside, 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
91/100CR 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 Riverside
88/100CR ScoreRanked #3 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 Riverside
85/100CR ScoreRanked #4 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 Corona, 11 mi away
85/100CR ScoreRanked #5 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
Based in Riverside
85/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 203 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 203 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 8 AM–2 PM · Sun closed
- Address
- 9960 Indiana Ave suite16, Riverside, CA 92503
Based in Rancho Cucamonga, 14 mi away
85/100CR 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
Based in Riverside
84/100CR ScoreRanked #8 because of its Google rating and review volume: 4.9★ from 1,073 Google reviews, 1,073 Google reviews.
- 4.9★ from 1,073 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6236 River Crest Dr a, Riverside, CA 92507
Based in Riverside
84/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 20 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat 9 AM–6 PM · Sun 9 AM–4 PM
- Address
- 11801 Pierce St Ste 200, Riverside, CA 92505
Based in Fontana, 10 mi away
84/100CR ScoreRanked #10 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 Corona, 11 mi away
82/100CR ScoreRanked #11 because of its Google rating and availability: 4.9★ from 191 Google reviews, open 24/7.
- 4.9★ from 191 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1101 California Ave Suite 100-11, Corona, CA 92881
Based in Anaheim, 24 mi away
81/100CR 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
Based in Ontario, 15 mi away
80/100CR ScoreRanked #13 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 San Bernardino, 14 mi away
80/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 18 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat 8 AM–6 PM · Sun 8 AM–7 PM
- Address
- 2130 N Arrowhead Ave unit 201 D, San Bernardino, CA 92405
Based in Montclair, 19 mi away
79/100CR ScoreRanked #15 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
#16 VERAXS CORP
Based in Riverside
79/100CR ScoreRanked #16 because of its Google rating and trade focus: 3.4★ from 5 Google reviews, listed on Google as “Insulation contractor”.
- 3.4★ from 5 Google reviews
- Hours
- Mon–Sat 10 AM–7 PM · Sun 10 AM–5 PM
- Address
- 7594 Indiana Ave, Riverside, CA 92504
Based in Chino, 19 mi away
78/100CR ScoreRanked #17 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 Pomona, 20 mi away
78/100CR ScoreRanked #18 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
#19 Greencat, Inc.
Based in Anaheim, 6 mi away
78/100CR ScoreRanked #19 because of its Google rating and review volume: 4.9★ from 373 Google reviews, 373 Google reviews.
- 4.9★ from 373 Google reviews
- Hours
- Mon–Sat 8 AM–8 PM · Sun closed
Based in Anaheim, 24 mi away
77/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 34 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 34 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun 10 AM–4 PM
- Address
- 5530 La Palma Ave, Anaheim, CA 92807
Based in Anaheim, 20 mi away
77/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 61 Google reviews
- Hours
- Mon–Fri 6:30 AM–5 PM · Sat closed · Sun 6:30 AM–5 PM
- Address
- 1348 S Country Glen Way, Anaheim, CA 92808
Based in Corona, 11 mi away
76/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.5★ from 24 Google reviews, listed on Google as “Insulation contractor”.
- 4.5★ from 24 Google reviews
- Hours
- Mon–Fri 6 AM–6 PM · Sat 7 AM–3 PM · Sun closed
- Address
- 1250 Carbide Dr, Corona, CA 92881
Based in Yorba Linda, 23 mi away
76/100CR 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
- 19751 Esperanza Rd, Yorba Linda, CA 92886
Based in Ontario, 12 mi away
75/100CR ScoreRanked #24 because of its Google rating and trade focus: 3.3★ from 7 Google reviews, listed on Google as “Insulation contractor”.
- 3.3★ from 7 Google reviews
- Hours
- Mon–Sun 9 AM–5 PM
- Address
- 3045 S Archibald Ave, Ontario, CA 91761
#25 Pure Eco Inc.
Based in Ontario, 13 mi away
75/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.8★ from 10 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 10 Google reviews
- Hours
- Mon–Fri 8:30 AM–5 PM · Sat closed · Sun 9:30 AM–6 PM
- Address
- 3CFR+94, 921 N Milliken Ave, Ontario, CA 91764
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 53 ranked insulation contractors here; the rest are on their profiles.
Also serving Riverside
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 |
|---|---|---|
| Allstar Roofers Riverside | 5.0★ (44) | In Riverside |
| American Insulation | In Riverside | |
| Attic Insulation | In Riverside | |
| Berry Roofing & Solar | 4.8★ (230) | In Riverside |
| California Showcase Construction | Vinyl Windows | Patio Doors | 4.0★ (86) | In Riverside |
| Clean Initiative | 4.1★ (185) | In Riverside |
| Division 7 Services, Inc | 5.0★ (2) | In Riverside |
| Eco Services | 1.6★ (7) | In Riverside |
| Fireproofing Cleaning Service | 4.5★ (2) | In Riverside |
| Hasco Heating Air Conditioning Services Co | 4.7★ (111) | In Riverside |
| Hot N Cold Insulation | In Riverside | |
| Hulsey Contracting Inc. | 4.8★ (4) | In Riverside |
| Mep construction services | 5.0★ (13) | In Riverside |
| Modern Comfort and Air | 5.0★ (88) | In Riverside |
| Old Mike Decor | 5.0★ (12) | In Riverside |
| Pure Eco Inc | 5.0★ (1) | In Riverside |
| Symmetry Co. | In Riverside | |
| TEK Industries | In Riverside | |
| Thermo Logic Insulation | 4.0★ (1) | In Riverside |
| TruTeam of California: | 5.0★ (1) | In Riverside |
How much do insulation contractors cost in Riverside?
National price ranges in USD, not adjusted for Riverside. 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 Riverside insulation contractors
We scored 53 Riverside 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 Riverside 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 Riverside: frequently asked questions
Who is the best insulation contractor in Riverside?
By CR Score, the highest-ranked insulation contractor in Riverside, CA is NexGen HVAC & Plumbing with a CR Score of 93/100. It has 4.7★ from 1,769 Google reviews. It is open 24/7. Gopher Patrol (#2) and My Insulation Guy (#3) follow. We ranked 53 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Riverside?
ContractorsRanked ranks 53 insulation contractors serving Riverside, CA. 11 of them are based in Riverside; 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 Riverside are open 24/7?
11 ranked insulation contractors in Riverside post 24/7 hours. The highest-ranked are NexGen HVAC & Plumbing (#1), Gopher Patrol (#2) and RighTime Home Services (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Riverside work on weekends?
35 of 53 ranked insulation contractors post Saturday hours and 31 post Sunday hours. The highest-ranked open Saturdays are NexGen HVAC & Plumbing (#1), Gopher Patrol (#2) and My Insulation Guy (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Riverside?
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 Riverside. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Riverside insulation contractors have?
The median Google rating among 53 rated insulation contractors in Riverside is 4.8★, with a median of 23 reviews. RighTime Home Services has the most, 3,741 reviews, and ranks #5. 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 Riverside count in this ranking?
Yes, if they are within 25 mi of the Riverside 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 Riverside
- October 2026: CR Scores recalculated for 53 insulation contractors serving Riverside.
- October 2026: 2 duplicate listings merged.
More insulation contractors and Riverside pages
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Other trades in Riverside
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- Plumbers in Riverside672 ranked
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- Handymen in Riverside80 ranked
- Kitchen remodelers in Riverside266 ranked
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- Flooring contractors in Riverside265 ranked
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- Concrete contractors in Riverside265 ranked
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- Deck builders in Riverside84 ranked
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- Window installers in Riverside486 ranked
- Gutter installers in Riverside68 ranked
- Solar installers in Riverside439 ranked
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