293 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Norwalk: CURA Termite and Pest Control, CR Score 63/100; 4.9★ from 859 Google reviews; open 24/7.
Best for emergencies (open 24/7): Artesia A Insulation Pros, posts 24/7 hours; ranked #4 of 293.
Most-reviewed: HomeShield Pest Control, 2,945 Google reviews at 5.0★, the most of 293 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
293 Norwalk insulation contractors are ranked here by CR Score, from ten published factors. 39 are open 24/7, 219 open Saturdays and 187 open Sundays, based on posted hours. The median Google rating is 5.0★ across 293 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | CURA Termite and Pest Control | 63 | 4.9★ (859) | Anaheim, 13 mi away | 24/7 | Overall |
| 2 | All City Animal Trapping | 61 | 4.9★ (732) | Carson, 12 mi away | Sat · Sun · Evenings | — |
| 3 | HomeShield Pest Control | 61 | 5.0★ (2,945) | Los Angeles, 19 mi away | Sat · Evenings | Most reviews |
| 4 | Artesia A Insulation Pros | 61 | 4.8★ (51) | Artesia, 3 mi away | 24/7 | Emergencies |
| 5 | Attic Projects | 61 | 4.9★ (584) | Orange, 14 mi away | Sat · Sun · Evenings | — |
| 6 | Insulation Labs | 60 | 5.0★ (135) | Fullerton, 10 mi away | Sat · Sun · Evenings | — |
| 7 | My Air Duct Cleaning | 59 | 5.0★ (59) | Bell, 6 mi away | Sat · Sun · Evenings | — |
| 8 | Norwalk Insulation Pros | 59 | 5.0★ (23) | Norwalk | Sat · Sun · Evenings | — |
| 9 | Monthly Savings Attic Insulation | 58 | 5.0★ (22) | Cerritos, 2 mi away | Sat · Sun · Evenings | — |
| 10 | Los Angeles Insulation Masters | 58 | 4.8★ (48) | Los Angeles, 13 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 Carson, 12 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 732 Google reviews, listed on Google as “Insulation contractor”.
Based in Los Angeles, 19 mi away
Ranked #3 because of its Google rating and review volume: 5.0★ from 2,945 Google reviews, the most in Norwalk.
Based in Artesia, 3 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 51 Google reviews, listed on Google as “Insulation contractor”.
Based in Orange, 14 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 584 Google reviews, listed on Google as “Insulation contractor”.
Based in Fullerton, 10 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 135 Google reviews, listed on Google as “Insulation contractor”.
Based in Bell, 6 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 59 Google reviews, listed on Google as “Insulation contractor”.
Based in Norwalk
Ranked #8 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based in Cerritos, 2 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based in Los Angeles, 13 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 48 Google reviews, listed on Google as “Insulation contractor”.
Based in Cerritos, 2 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Insulation contractor”.
Based in Santa Fe Springs, 5 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based in Bell Gardens, 6 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Insulation contractor”.
Based in Compton, 8 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Insulation contractor”.
Based in Buena Park, 5 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Insulation contractor”.
Based in Long Beach, 7 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based in Fullerton, 8 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Insulation contractor”.
Based in Montebello, 7 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based in Los Angeles, 14 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 97 Google reviews, listed on Google as “Insulation contractor”.
Based in Fullerton, 12 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 44 Google reviews, listed on Google as “Insulation contractor”.
Based in Signal Hill, 8 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 54 Google reviews, listed on Google as “Insulation contractor”.
Based in Fullerton, 8 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 61 Google reviews, listed on Google as “Insulation contractor”.
Based in Norwalk
Ranked #23 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based in Compton, 9 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Insulation contractor”.
Based in Cerritos, 3 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 8 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 293 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 |
|---|---|---|
| AAA Roofing and Insulation Services | 5.0★ (2) | 21 mi |
| Bob Mezzo Plastering | 5.0★ (2) | 10 mi |
| Contractor Monrovia Redzone | 5.0★ (2) | 17 mi |
| Garcia Brothers Norwalk Attic Insulation. | In Norwalk | |
| Image General Construction | 5.0★ (2) | 15 mi |
| Master Insulation & AC | 5.0★ (2) | 21 mi |
| NDM Insulation | 5.0★ (2) | 8 mi |
| Peakline Roofers Pro | 4.9★ (24) | In Norwalk |
| Performance Contracting Inc | 5.0★ (2) | 16 mi |
| Pure Eco Insulation | 5.0★ (2) | 8 mi |
| QUALITY FOAM | 5.0★ (2) | 15 mi |
| Smart Value Insulation | 5.0★ (2) | 13 mi |
| Socal Thermal Insulation / EXCELLENCE AWARD | 3.0★ (2) | 17 mi |
| South Gate Insulation Pros | 5.0★ (2) | 6 mi |
| The Insulation Experts | 5.0★ (2) | 20 mi |
| Thermal Nest Insulation of Anaheim | 5.0★ (2) | 13 mi |
| Titan Insulation - Pasadena | 5.0★ (2) | 17 mi |
| Vasitos Construction | 5.0★ (2) | 12 mi |
| Western Industrial Ceramics | 5.0★ (2) | 3 mi |
| Zampell Refactories | In Norwalk |
National price ranges in USD, not adjusted for Norwalk. 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 293 Norwalk 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 23, 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 Norwalk 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 |