76 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Spring Valley: Attic Professional, CR Score 90/100; 5.0★ from 197 Google reviews; open 24/7.
Best for emergencies (open 24/7): Mauzy Cooling, Heating, Plumbing, and Electrical, posts 24/7 hours; ranked #3 of 76.
Most-reviewed: Mauzy Cooling, Heating, Plumbing, and Electrical, 4,710 Google reviews at 4.8★, the most of 76 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
76 Spring Valley insulation contractors are ranked here by CR Score, from 8 published factors. 6 are open 24/7, 46 open Saturdays and 37 open Sundays, based on posted hours. The median Google rating is 4.9★ across 76 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Attic Professional | 90 | 5.0★ (197) | Santee, 7 mi away | 24/7 | Overall |
| 2 | Attic Construction | 88 | 4.9★ (316) | San Diego, 4 mi away | Sat · Sun · Evenings | — |
| 3 | Mauzy Cooling, Heating, Plumbing, and Electrical | 87 | 4.8★ (4,710) | El Cajon, 5 mi away | 24/7 | Emergencies, Most reviews |
| 4 | Attic Projects Company | 87 | 4.9★ (888) | San Diego, 14 mi away | Sat · Sun | — |
| 5 | Miramar SD Insulation Inc. | 85 | 5.0★ (31) | San Diego, 13 mi away | 24/7 | — |
| 6 | Advanced Insulation System | 85 | 5.0★ (126) | San Diego, 11 mi away | Sat · Sun | — |
| 7 | Attic Heroes | 84 | 5.0★ (106) | San Diego, 12 mi away | Sat · Sun · Evenings | — |
| 8 | Precision Environmental | 84 | 4.5★ (31) | San Diego, 10 mi away | 24/7 | — |
| 9 | California Attic & Build | 84 | 5.0★ (144) | San Diego, 15 mi away | Sat · Sun | — |
| 10 | EcoGuard Pest Management | 84 | 4.9★ (538) | Coronado, 22 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: 5.0★ from 197 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 4 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 316 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in El Cajon, 5 mi away
Ranked #3 because of its Google rating and review volume: 4.8★ from 4,710 Google reviews, the most Google reviews on this list (4,710).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 14 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 888 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 13 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 31 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 11 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 126 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 12 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 106 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 10 mi away
Ranked #8 because of its Google rating and availability: 4.5★ from 31 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 15 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 144 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Coronado, 22 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 538 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 5 mi away
Ranked #11 because of its Google rating and availability: 3.7★ from 6 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 10 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Carlsbad, 15 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 235 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in La Mesa, 3 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Baldwin Park, 7 mi away
Ranked #15 because of its Google rating and trade focus: 4.7★ from 31 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in El Cajon, 5 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in El Cajon, 6 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 8 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in El Cajon, 5 mi away
Ranked #19 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Carlsbad, 21 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 15 mi away
Ranked #21 because of its Google rating and availability: 5.0★ from 71 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 13 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 10 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chula Vista, 10 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 12 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 7 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 #50, in CR Score order; each links to its profile. We publish the top 50 of 76 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 |
|---|---|---|
| A&O Insulation Inc | 5.0★ (2) | 8 mi |
| Arctic airflow heating and air conditioning Inc | 5.0★ (2) | In Spring Valley |
| Attic Seal Insulation | 5.0★ (1) | 14 mi |
| bedrock | In Spring Valley | |
| Blue Collar HVAC | 5.0★ (246) | In Spring Valley |
| C.R. Insulation | 4.0★ (2) | 13 mi |
| Cal Spray Foam Insulation | 5.0★ (1) | 21 mi |
| Comfort Barrier Insulation | 5.0★ (2) | 14 mi |
| Distribution International | 5.0★ (1) | 6 mi |
| Eco Shield Insulation | 5.0★ (1) | 21 mi |
| Insul Tech Innovations | 5.0★ (1) | 17 mi |
| NAVIGATIONAL SERVICES | 4.0★ (2) | 8 mi |
| Premium Roof Services, Inc. | 4.9★ (101) | In Spring Valley |
| Pro Desk at The Home Depot | 4.0★ (2) | 7 mi |
| Ron Garage Door Repair | 4.9★ (71) | In Spring Valley |
| RWC Building Products | 4.6★ (116) | In Spring Valley |
| Sears Heating and Air Conditioning | 3.0★ (1) | In Spring Valley |
| State Supply Inc | 5.0★ (1) | 11 mi |
| Synergy Insulation | 4.0★ (2) | 11 mi |
| Total Climate Control Insulation | 5.0★ (2) | 15 mi |
National price ranges in USD, not adjusted for Spring Valley. 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 76 Spring Valley 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 Spring Valley 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 |