269 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Fullerton: CURA Termite and Pest Control, CR Score 65/100; 4.9★ from 859 Google reviews; open 24/7.
Best for emergencies (open 24/7): Artesia A Insulation Pros, posts 24/7 hours; ranked #7 of 269.
Most-reviewed: NexGen HVAC & Plumbing, 3,589 Google reviews at 4.8★, the most of 269 ranked; ranked #32.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
269 Fullerton insulation contractors are ranked here by CR Score, from ten published factors. 38 are open 24/7, 204 open Saturdays and 173 open Sundays, based on posted hours. The median Google rating is 5.0★ across 269 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | CURA Termite and Pest Control | 65 | 4.9★ (859) | Anaheim, 5 mi away | 24/7 | Overall |
| 2 | Attic Projects | 62 | 4.9★ (584) | Orange, 6 mi away | Sat · Sun · Evenings | — |
| 3 | Insulation Labs | 62 | 5.0★ (135) | Fullerton | Sat · Sun · Evenings | — |
| 4 | YS Attic Insulation | 60 | 4.9★ (44) | Fullerton | Sat · Sun · Evenings | — |
| 5 | All City Animal Trapping | 59 | 4.9★ (732) | Carson, 19 mi away | Sat · Sun · Evenings | — |
| 6 | My Insulation Guy Orange County | 59 | 5.0★ (29) | Fullerton | Sat · Sun · Evenings | — |
| 7 | Artesia A Insulation Pros | 59 | 4.8★ (51) | Artesia, 9 mi away | 24/7 | Emergencies |
| 8 | SoCal Certified Pest Control Services | 59 | 5.0★ (61) | Fullerton | Sat | — |
| 9 | Attic Construction | 58 | 5.0★ (40) | Orange, 6 mi away | Sat · Sun · Evenings | — |
| 10 | NexGen HVAC & Plumbing | 58 | 4.7★ (2,250) | Anaheim, 8 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 859 Google reviews, listed on Google as “Insulation contractor”.
Based in Orange, 6 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 584 Google reviews, listed on Google as “Insulation contractor”.
Based in Fullerton
Ranked #3 because of its Google rating and trade focus: 5.0★ from 135 Google reviews, listed on Google as “Insulation contractor”.
Based in Fullerton
Ranked #4 because of its Google rating and trade focus: 4.9★ from 44 Google reviews, listed on Google as “Insulation contractor”.
Based in Carson, 19 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 732 Google reviews, listed on Google as “Insulation contractor”.
Based in Fullerton
Ranked #6 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based in Artesia, 9 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 51 Google reviews, listed on Google as “Insulation contractor”.
Based in Fullerton
Ranked #8 because of its Google rating and trade focus: 5.0★ from 61 Google reviews, listed on Google as “Insulation contractor”.
Based in Orange, 6 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Insulation contractor”.
Based in Anaheim, 8 mi away
Ranked #10 because of its Google rating and review volume: 4.7★ from 2,250 Google reviews.
Based in Santa Ana, 9 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based in Placentia, 4 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based in Santa Ana, 11 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 79 Google reviews, listed on Google as “Insulation contractor”.
Based in Placentia, 6 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based in Anaheim, 5 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based in Anaheim, 5 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based in Orange, 5 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based in Buena Park, 5 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Insulation contractor”.
Based in Orange, 6 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Insulation contractor”.
Based in Riverside, 25 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 182 Google reviews, listed on Google as “Insulation contractor”.
Based in Anaheim, 2 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “Insulation contractor”.
Based in Orange, 6 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Insulation contractor”.
Based in Cerritos, 7 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based in Norwalk, 8 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based in Anaheim, 8 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 34 Google reviews, listed on Google as “Insulation contractor”.
#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 269 ranked insulation contractors here; the rest are on their profiles.
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 |
|---|---|---|
| Bob Mezzo Plastering | 5.0★ (2) | In Fullerton |
| Builders' Insulation | 5.0★ (2) | 21 mi |
| Canyon Insulation Inc | 5.0★ (2) | 21 mi |
| Contractor Monrovia Redzone | 5.0★ (2) | 19 mi |
| GP Painting | 3.0★ (2) | 17 mi |
| NDM Insulation | 5.0★ (2) | 6 mi |
| Performance Contracting Inc | 5.0★ (2) | 7 mi |
| Pure Eco Insulation | 5.0★ (2) | 13 mi |
| QUALITY FOAM | 5.0★ (2) | 15 mi |
| Seaside Custom Construction | 5.0★ (2) | 17 mi |
| Semper fi Handyman | 2.5★ (2) | 18 mi |
| Smart Value Insulation | 5.0★ (2) | 15 mi |
| Socal Thermal Insulation / EXCELLENCE AWARD | 3.0★ (2) | 10 mi |
| South Gate Insulation Pros | 5.0★ (2) | 15 mi |
| Thermal Energy Products | 3.0★ (2) | 18 mi |
| Thermal Nest Insulation of Anaheim | 5.0★ (2) | 4 mi |
| Thorpe Insulation Co | In Fullerton | |
| U-STUCCO Green Building Materials | 5.0★ (2) | 17 mi |
| Vasitos Construction | 5.0★ (2) | 11 mi |
| Western Industrial Ceramics | 5.0★ (2) | 9 mi |
National price ranges in USD, not adjusted for Fullerton. 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 269 Fullerton 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 Fullerton 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 |