45 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Rialto: NexGen HVAC & Plumbing, CR Score 89/100; 4.7★ from 1,769 Google reviews; open 24/7.
Best for emergencies (open 24/7): Gopher Patrol, posts 24/7 hours; ranked #2 of 45.
Most-reviewed: RighTime Home Services, 3,741 Google reviews at 4.7★, the most of 45 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
45 Rialto insulation contractors are ranked here by CR Score, from 8 published factors. 10 are open 24/7, 28 open Saturdays and 23 open Sundays, based on posted hours. The median Google rating is 4.7★ across 45 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | NexGen HVAC & Plumbing | 89 | 4.7★ (1,769) | Riverside, 16 mi away | 24/7 | Overall |
| 2 | Gopher Patrol | 87 | 4.9★ (182) | Riverside, 16 mi away | 24/7 | Emergencies |
| 3 | Attic Projects | 85 | 5.0★ (168) | Rancho Cucamonga, 11 mi away | Sat · Sun · Evenings | — |
| 4 | NexGen HVAC & Plumbing | 84 | 4.8★ (708) | Fontana, 9 mi away | 24/7 | — |
| 5 | My Insulation Guy | 83 | 4.9★ (155) | Riverside, 16 mi away | Sat · Sun · Evenings | — |
| 6 | RighTime Home Services | 82 | 4.7★ (3,741) | Corona, 21 mi away | 24/7 | Most reviews |
| 7 | Y&S Attic Insulation | 82 | 5.0★ (18) | San Bernardino, 5 mi away | Sat · Sun · Evenings | — |
| 8 | Ameriwest Home Services | 81 | 5.0★ (203) | Riverside, 14 mi away | Sat | — |
| 9 | RKM Heating and Air Conditioning | 81 | 4.9★ (1,073) | Riverside, 12 mi away | 24/7 | — |
| 10 | Attic Advisor | 81 | 5.0★ (37) | Riverside, 16 mi away | Sat · Sun · Evenings | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and availability: 4.7★ from 1,769 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Riverside, 16 mi away
Ranked #2 because of its Google rating and availability: 4.9★ from 182 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Rancho Cucamonga, 11 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 168 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fontana, 9 mi away
Ranked #4 because of its Google rating and availability: 4.8★ from 708 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Riverside, 16 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 155 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Corona, 21 mi away
Ranked #6 because of its Google rating and review volume: 4.7★ from 3,741 Google reviews, the most Google reviews on this list (3,741).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Bernardino, 5 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Riverside, 14 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 203 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Riverside, 12 mi away
Ranked #9 because of its Google rating and review volume: 4.9★ from 1,073 Google reviews, 1,073 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Riverside, 16 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ontario, 15 mi away
Ranked #11 because of its Google rating and availability: 4.6★ from 507 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Riverside, 16 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Corona, 20 mi away
Ranked #13 because of its Google rating and availability: 4.9★ from 191 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Montclair, 19 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Anaheim, 5 mi away
Ranked #15 because of its Google rating and review volume: 4.9★ from 373 Google reviews, 373 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Pomona, 21 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chino, 20 mi away
Ranked #17 because of its Google rating and trade focus: 4.7★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Riverside, 12 mi away
Ranked #18 because of its Google rating and trade focus: 3.4★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ontario, 11 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ontario, 14 mi away
Ranked #20 because of its Google rating and trade focus: 3.3★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ontario, 13 mi away
Ranked #21 because of its Google rating and trade focus: 2.3★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Corona, 20 mi away
Ranked #22 because of its Google rating and trade focus: 4.5★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in La Verne, 24 mi away
Ranked #23 because of its Google rating and availability: 4.8★ from 19 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fontana, 9 mi away
Ranked #24 because of its Google rating and trade focus: 4.3★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ontario, 14 mi away
Ranked #25 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #45, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Lee's HVAC & Home Renovations | 73 | 4.6★ (122) | 20 mi |
| 27 | Insulfoam | 72 | 3.8★ (13) | 19 mi |
| 28 | Empire Insulation | 71 | 4.2★ (5) | 7 mi |
| 29 | Quality Duct Cleaning | 71 | 5.0★ (25) | 3 mi |
| 30 | P & E INSULATION | 71 | 5.0★ (7) | 19 mi |
| 31 | Guardian Termite and Pest Control | 70 | 5.0★ (4) | 23 mi |
| 32 | Joel's Handyman | 69 | 3.7★ (6) | 11 mi |
| 33 | Thor McAndrew Construction Drywall Specialists | 69 | 4.3★ (6) | 16 mi |
| 34 | Pacific Kiln Insulation Co | 69 | 4.3★ (6) | 15 mi |
| 35 | Foundry Service & Supplies, Inc. | 69 | 3.8★ (11) | 15 mi |
| 36 | TruTeam of California | 68 | 3.1★ (34) | 7 mi |
| 37 | Tenco Construction | 68 | 3.7★ (80) | 18 mi |
| 38 | Coast Building Products | 68 | 3.7★ (3) | 19 mi |
| 39 | Bell Roof Co. | 67 | 4.2★ (30) | 4 mi |
| 40 | Weatherguard Company | 67 | 5.0★ (23) | 12 mi |
| 41 | Green Lite Windows & Doors | 67 | 4.7★ (44) | 12 mi |
| 42 | West Coast Windows and Home Improvement | 66 | 4.1★ (66) | 20 mi |
| 43 | Apple Valley Insulation | 65 | 3.6★ (33) | 25 mi |
| 44 | Concrete Protection Systems West, Inc. | 63 | 5.0★ (5) | 15 mi |
| 45 | So Cal Remodeling | 63 | 4.4★ (29) | 21 mi |
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 Seasons Insulation, Inc. | 1.0★ (1) | 4 mi |
| All Star Install LLC | 5.0★ (2) | 12 mi |
| american insulation inc | 5.0★ (1) | 6 mi |
| Attic Blow Insulation | 5.0★ (2) | 5 mi |
| AV Painting & Quality Service | 5.0★ (1) | 11 mi |
| Builders' Insulation | 5.0★ (2) | 19 mi |
| Canyon Insulation Inc | 5.0★ (2) | 19 mi |
| CENTROMERE CONSTRUCTION INC | 3.0★ (2) | 15 mi |
| Fireproofing Cleaning Service | 4.5★ (2) | 11 mi |
| Jose Rodriguez Insulation | 3.0★ (2) | 5 mi |
| Kiko's insulation corporation | 5.0★ (2) | 24 mi |
| LL Insulation Contractors | 1.0★ (1) | 8 mi |
| Lone Star | 5.0★ (2) | 24 mi |
| M.L. Construction | 5.0★ (109) | In Rialto |
| Pure Eco Inc | 5.0★ (1) | 8 mi |
| Semper fi Handyman | 2.5★ (2) | 21 mi |
| Thermal Energy Products | 3.0★ (2) | 20 mi |
| Thermo Logic Insulation | 4.0★ (1) | 9 mi |
| TruTeam of California: | 5.0★ (1) | 6 mi |
National price ranges in USD, not adjusted for Rialto. 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 |
We scored 45 Rialto 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 Rialto 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 |