31 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Highland: NexGen HVAC & Plumbing, CR Score 63/100; 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 31.
Most-reviewed: RKM Heating and Air Conditioning, 1,073 Google reviews at 4.9★, the most of 31 ranked after NexGen HVAC & Plumbing; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
31 Highland insulation contractors are ranked here by CR Score, from ten published factors. 6 are open 24/7, 18 open Saturdays and 16 open Sundays, based on posted hours. The median Google rating is 4.7★ across 31 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | NexGen HVAC & Plumbing | 63 | 4.7★ (1,769) | Riverside, 17 mi away | 24/7 | Overall |
| 2 | Gopher Patrol | 58 | 4.9★ (182) | Riverside, 23 mi away | 24/7 | Emergencies |
| 3 | Attic Projects | 58 | 5.0★ (168) | Rancho Cucamonga, 21 mi away | Sat · Sun · Evenings | — |
| 4 | Y&S Attic Insulation | 57 | 5.0★ (18) | San Bernardino, 5 mi away | Sat · Sun · Evenings | — |
| 5 | My Insulation Guy | 57 | 4.9★ (155) | Riverside, 23 mi away | Sat · Sun · Evenings | — |
| 6 | Ameriwest Home Services | 56 | 5.0★ (203) | Riverside, 21 mi away | Sat | — |
| 7 | RKM Heating and Air Conditioning | 56 | 4.9★ (1,073) | Riverside, 14 mi away | 24/7 | Most reviews |
| 8 | NexGen HVAC & Plumbing | 55 | 4.8★ (708) | Fontana, 18 mi away | 24/7 | — |
| 9 | Attic Advisor | 54 | 5.0★ (37) | Riverside, 23 mi away | Sat · Sun · Evenings | — |
| 10 | All Type Insulation Services, Inc | 53 | 5.0★ (20) | Riverside, 23 mi away | Sat · Sun · Evenings | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 4.7★ from 1,769 Google reviews, the most in Highland.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Riverside, 23 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 182 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rancho Cucamonga, 21 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 8 of 10 factors; credentials and recency not yet collected.
Based in San Bernardino, 5 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Riverside, 23 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 8 of 10 factors; credentials and recency not yet collected.
Based in Riverside, 21 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 203 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Riverside, 14 mi away
Ranked #7 because of its Google rating and review volume: 4.9★ from 1,073 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fontana, 18 mi away
Ranked #8 because of its Google rating and review volume: 4.8★ from 708 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Riverside, 23 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Riverside, 23 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Anaheim, 13 mi away
Ranked #11 because of its Google rating and review volume: 4.9★ from 373 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ontario, 25 mi away
Ranked #12 because of its Google rating and review volume: 4.6★ from 507 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Calabasas, 12 mi away
Ranked #13 because of its Google rating and review volume: 4.6★ from 122 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Riverside, 19 mi away
Ranked #14 because of its Google rating and trade focus: 3.4★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ontario, 21 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Fontana, 18 mi away
Ranked #16 because of its Google rating and trade focus: 4.3★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ontario, 23 mi away
Ranked #17 because of its Google rating and trade focus: 3.3★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Colton, 9 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Riverside, 13 mi away
Ranked #19 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Riverside, 11 mi away
Ranked #20 because of its Google rating and trade focus: 3.1★ from 34 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Moreno Valley, 15 mi away
Ranked #21 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ontario, 23 mi away
Ranked #22 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ontario, 23 mi away
Ranked #23 because of its Google rating and trade focus: 2.3★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Hesperia, 23 mi away
Ranked #24 because of its Google rating and trade focus: 3.6★ from 33 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ontario, 25 mi away
Ranked #25 because of its Google rating and trade focus: 3.8★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
National price ranges in USD, not adjusted for Highland. 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 31 Highland insulation contractors on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, 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 Highland data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |