90/100CR Score
Ranked #1 because of its Google rating and availability: 4.9★ from 78 Google reviews, open 24/7.
- 4.9★ from 78 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Insulation Contractors in Castaic, CA (2026)
82 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Castaic: Attic Rescue Insulation Contractor, CR Score 90/100; 4.9★ from 78 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Green Rodent Restoration, posts 24/7 hours; ranked #2 of 82.
- 4
Most-reviewed: EcoShield Pest Control North Los Angeles, 1,917 Google reviews at 4.8★, the most of 82 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
82 Castaic insulation contractors are ranked here by CR Score, from 8 published factors. 17 are open 24/7, 57 open Saturdays and 50 open Sundays, based on posted hours. The median Google rating is 5.0★ across 82 rated businesses.
Top 10 insulation contractors in Castaic at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Attic Rescue Insulation Contractor | 90 | 4.9★ (78) | Castaic | 24/7 | Overall |
| 2 | Green Rodent Restoration | 86 | 4.7★ (133) | Chatsworth, 17 mi away | 24/7 | Emergencies |
| 3 | Insulation Labs | 85 | 4.9★ (413) | Van Nuys, 22 mi away | Sat · Sun · Evenings | — |
| 4 | EcoShield Pest Control North Los Angeles | 84 | 4.8★ (1,917) | Canoga Park, 18 mi away | Sat | Most reviews |
| 5 | Install | Insulation | 83 | 5.0★ (27) | Canoga Park, 20 mi away | 24/7 | — |
| 6 | Conejo Services HVAC, Plumbing and Electrical | 83 | 4.9★ (86) | Valencia, 3 mi away | 24/7 | — |
| 7 | Attic Masters Insulation Services | 83 | 4.8★ (48) | Sherman Oaks, 24 mi away | 24/7 | — |
| 8 | E&E Attic Insulation Installation | 83 | 4.9★ (30) | Calabasas, 23 mi away | 24/7 | — |
| 9 | ZeroVap | 82 | 5.0★ (27) | Van Nuys, 24 mi away | 24/7 | — |
| 10 | Pure Eco Inc. | 82 | 5.0★ (16) | Calabasas, 23 mi away | 24/7 | — |
The 82 best insulation contractors in Castaic, 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 Chatsworth, 17 mi away
86/100CR ScoreRanked #2 because of its Google rating and availability: 4.7★ from 133 Google reviews, open 24/7.
- 4.7★ from 133 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9820 Owensmouth Ave Unit 1, Chatsworth, CA 91311
Based in Van Nuys, 22 mi away
85/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 413 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 413 Google reviews
- Hours
- Mon–Fri 8 AM–6:30 PM · Sat–Sun 8 AM–4:30 PM
- Address
- 7023 Valjean Ave, Van Nuys, CA 91406
Based in Canoga Park, 18 mi away
84/100CR ScoreRanked #4 because of its Google rating and review volume: 4.8★ from 1,917 Google reviews, the most Google reviews on this list (1,917).
- 4.8★ from 1,917 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 9 AM–1 PM · Sun closed
- Address
- 9037 Owensmouth Ave, Canoga Park, CA 91304
Based in Canoga Park, 20 mi away
83/100CR ScoreRanked #5 because of its Google rating and availability: 5.0★ from 27 Google reviews, open 24/7.
- 5.0★ from 27 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7005 Jordan Ave # 116, Canoga Park, CA 91303
Based in Valencia, 3 mi away
83/100CR ScoreRanked #6 because of its Google rating and availability: 4.9★ from 86 Google reviews, open 24/7.
- 4.9★ from 86 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 27240 Turnberry Ln #200, Valencia, CA 91355
Based in Sherman Oaks, 24 mi away
83/100CR ScoreRanked #7 because of its Google rating and availability: 4.8★ from 48 Google reviews, open 24/7.
- 4.8★ from 48 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 15207 Hesby St, Sherman Oaks, CA 91403
Based in Calabasas, 23 mi away
83/100CR ScoreRanked #8 because of its Google rating and availability: 4.9★ from 30 Google reviews, open 24/7.
- 4.9★ from 30 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 18375 Ventura Blvd Suite 1027, Tarzana, CA 91356
#9 ZeroVap
Based in Van Nuys, 24 mi away
82/100CR ScoreRanked #9 because of its Google rating and availability: 5.0★ from 27 Google reviews, open 24/7.
- 5.0★ from 27 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 15207 Hesby St, Van Nuys, CA 91403
#10 Pure Eco Inc.
Based in Calabasas, 23 mi away
82/100CR ScoreRanked #10 because of its Google rating and availability: 5.0★ from 16 Google reviews, open 24/7.
- 5.0★ from 16 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 18340 Ventura Blvd #208, Tarzana, CA 91356
Based in North Hills, 15 mi away
81/100CR ScoreRanked #11 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
- 15823 Monte St, Sylmar, CA 91342
Based in Woodland Hills, 22 mi away
81/100CR ScoreRanked #12 because of its Google rating and availability: 5.0★ from 11 Google reviews, open 24/7.
- 5.0★ from 11 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 21650 Oxnard St #1910, Woodland Hills, CA 91367
Based in Canoga Park, 19 mi away
81/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 43 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 43 Google reviews
- Hours
- Mon–Sun 7 AM–8 PM
- Address
- 21301 Saticoy St #107, Canoga Park, CA 91304
Based in Chatsworth, 17 mi away
81/100CR ScoreRanked #14 because of its Google rating and review volume: 4.9★ from 1,050 Google reviews, 1,050 Google reviews.
- 4.9★ from 1,050 Google reviews
- Hours
- Mon–Fri 7:30 AM–8 PM · Sat–Sun 8 AM–4 PM
- Address
- 9601 Cozycroft Ave Unit 1, Chatsworth, CA 91311
Based in Canoga Park, 19 mi away
81/100CR ScoreRanked #15 because of its Google rating and availability: 4.4★ from 9 Google reviews, open 24/7.
- 4.4★ from 9 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7806 Loma Verde Ave, Canoga Park, CA 91304
Based in Simi Valley, 17 mi away
81/100CR ScoreRanked #16 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
- 855 E Easy St, Simi Valley, CA 93065
Based in Canoga Park, 19 mi away
80/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
- 5.0★ from 4 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 21501 Roscoe Blvd apt 118, Canoga Park, CA 91304
Based in North Hollywood, 24 mi away
80/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 63 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 63 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 6238 Alcove Ave, North Hollywood, CA 91606
Based in Chatsworth, 17 mi away
80/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 15 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 9725 Owensmouth Ave, Chatsworth, CA 91311
Based in Simi Valley, 17 mi away
80/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 15 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 771 Chambers Ln, Simi Valley, CA 93065
Based in Chatsworth, 17 mi away
80/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 94 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 94 Google reviews
- Hours
- Mon–Thu 8 AM–6 PM · Fri 8 AM–3 PM · Sat closed · Sun 8 AM–6 PM
- Address
- 9925 Canoga Ave, Chatsworth, CA 91311
Based in Canoga Park, 17 mi away
79/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 62 Google reviews
- Hours
- Mon–Sat 8 AM–8 PM · Sun closed
- Address
- 17614 Los Alimos St, Granada Hills, CA 91344
Based in Canoga Park, 18 mi away
79/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 13 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 9005 Eton Ave, Canoga Park, CA 91304
Based in Calabasas, 25 mi away
79/100CR ScoreRanked #24 because of its Google rating and availability: 4.9★ from 207 Google reviews, open 24/7.
- 4.9★ from 207 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 27001 Agoura Rd #350, Calabasas, CA 91301
Based in Northridge, 19 mi away
79/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 85 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 85 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat 8 AM–5 PM · Sun closed
- Address
- 8358 Wilbur Ave, Northridge, CA 91324
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 82 ranked insulation contractors here; the rest are on their profiles.
Also serving Castaic
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 |
|---|---|---|
| AFFORDABLE HEATING AND AIR CONDITIONING | 5.0★ (1) | 23 mi |
| Attic Insulation 911 | 5.0★ (1) | 21 mi |
| Attic Insulation Repair Tarzana Co | 5.0★ (1) | 23 mi |
| Brilliants Insulation Contractor | 5.0★ (2) | 9 mi |
| Control | 5.0★ (2) | 22 mi |
| Eco Choice Remodeling | 1.0★ (1) | 22 mi |
| Ecorattic Insulation | 1.0★ (1) | 22 mi |
| Green Attic Insulation | 5.0★ (1) | 24 mi |
| insulation expert services | 5.0★ (2) | 18 mi |
| JJ Handyman | 5.0★ (1) | 21 mi |
| Leos Insulation | 5.0★ (2) | 20 mi |
| Next Level Insulation of Santa Clarita | 5.0★ (2) | 5 mi |
| Premier Insulation Inc. | 5.0★ (2) | 20 mi |
| Progressive Santa Clarita - Insulation Contractor Free Quote | 5.0★ (2) | 9 mi |
| Smart Budget Insulation of Santa Clarita | 5.0★ (2) | 8 mi |
| So Cal Crawl Space Solutions | In Castaic | |
| SuperGreen Insulation | 3.0★ (2) | 15 mi |
| Tarzana Insulation Pros | 5.0★ (2) | 13 mi |
| Wool Insulation And Attic Services | 16 mi | |
| YM Insulation | 17 mi |
How much do insulation contractors cost in Castaic?
National price ranges in USD, not adjusted for Castaic. 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 Castaic insulation contractors
We scored 82 Castaic 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 Castaic 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 Castaic: frequently asked questions
Who is the best insulation contractor in Castaic?
By CR Score, the highest-ranked insulation contractor in Castaic, CA is Attic Rescue Insulation Contractor with a CR Score of 90/100. It has 4.9★ from 78 Google reviews. It is open 24/7. Green Rodent Restoration (#2) and Insulation Labs (#3) follow. We ranked 82 insulation contractors on 8 factors, last updated October 22, 2026.
How many insulation contractors are there in Castaic?
ContractorsRanked ranks 82 insulation contractors serving Castaic, CA. 1 of them is based in Castaic; 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 Castaic are open 24/7?
17 ranked insulation contractors in Castaic post 24/7 hours. The highest-ranked are Attic Rescue Insulation Contractor (#1), Green Rodent Restoration (#2) and Install | Insulation (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which insulation contractors in Castaic work on weekends?
57 of 82 ranked insulation contractors post Saturday hours and 50 post Sunday hours. The highest-ranked open Saturdays are Attic Rescue Insulation Contractor (#1), Green Rodent Restoration (#2) and Insulation Labs (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Castaic?
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 Castaic. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Castaic insulation contractors have?
The median Google rating among 82 rated insulation contractors in Castaic is 5.0★, with a median of 20 reviews. EcoShield Pest Control North Los Angeles has the most, 1,917 reviews, and ranks #4. 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 Castaic count in this ranking?
Yes, if they are within 25 mi of the Castaic 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 Castaic
- October 2026: CR Scores recalculated for 82 insulation contractors serving Castaic.
More insulation contractors and Castaic pages
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