16 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Stockton: Giant Insulation Solutions Stockton, CR Score 59/100; 4.8★ from 32 Google reviews; open Saturdays until 7 PM.
Best for emergencies (open 24/7): Reactic Restoration, posts 24/7 hours; ranked #9 of 16.
Most-reviewed: Ace Handyman Services Brentwood, 405 Google reviews at 4.9★, the most of 16 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
16 Stockton insulation contractors are ranked here by CR Score, from ten published factors. 2 are open 24/7, 10 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 4.9★ across 16 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Giant Insulation Solutions Stockton | 59 | 4.8★ (32) | Stockton | Sat · Evenings | Overall |
| 2 | Ace Handyman Services Brentwood | 58 | 4.9★ (405) | Brentwood, 22 mi away | — | Most reviews |
| 3 | Valley Master Insulation Corp | 57 | 5.0★ (25) | Manteca, 11 mi away | Sat | — |
| 4 | EcoGuard Pest Management | 57 | 5.0★ (142) | Lathrop, 8 mi away | Sat · Sun · Evenings | — |
| 5 | Atticare Tracy | 56 | 5.0★ (16) | Livermore, 14 mi away | Sat · Sun · Evenings | — |
| 6 | Cal Spray Foam Insulation | 56 | 5.0★ (10) | August, 5 mi away | Sat | — |
| 7 | Apex Attic Insulation & Spray Foam Lodi | 56 | 4.9★ (32) | Lodi, 15 mi away | Sat · Evenings | — |
| 8 | CA Attic Solutions | 56 | 5.0★ (27) | Tracy, 15 mi away | Sat | — |
| 9 | Reactic Restoration | 54 | 5.0★ (9) | Stockton | 24/7 | Emergencies |
| 10 | Silvercote | 54 | 4.0★ (8) | Stockton | — | — |
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: 4.8★ from 32 Google reviews, listed on Google as “Insulation contractor”.
Based in Brentwood, 22 mi away
Ranked #2 because of its Google rating and review volume: 4.9★ from 405 Google reviews, the most in Stockton.
Based in Manteca, 11 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based in Lathrop, 8 mi away
Ranked #4 because of its Google rating and review volume: 5.0★ from 142 Google reviews.
Based in Livermore, 14 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Insulation contractor”.
Based in August, 5 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Insulation contractor”.
Based in Lodi, 15 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 32 Google reviews, listed on Google as “Insulation contractor”.
Based in Tracy, 15 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Insulation contractor”.
Based in Stockton
Ranked #9 because of its Google rating and availability: 5.0★ from 9 Google reviews, open 24/7.
Based in Stockton
Ranked #10 because of its Google rating and trade focus: 4.0★ from 8 Google reviews, listed on Google as “Insulation contractor”.
Based in Stockton
Ranked #11 because of its Google rating and review volume: 4.8★ from 113 Google reviews.
Based in Stockton
Ranked #12 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 24/7.
Based in Brentwood, 23 mi away
Ranked #13 because of its Google rating and trade focus: 4.2★ from 26 Google reviews, listed on Google as “Insulation contractor”.
Based in Lathrop, 7 mi away
Ranked #14 because of its Google rating and trade focus: 3.6★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based in Stockton
Ranked #15 because of its Google rating and review volume: 4.2★ from 52 Google reviews.
Based in Galt, 17 mi away
Ranked #16 because of its Google rating and trade focus: 3.7★ from 6 Google reviews, listed on Google as “Insulation contractor”.
5 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 |
|---|---|---|
| ALCAL Specialty Contracting Stockton - Home Service Division | 4.5★ (2) | In Stockton |
| LEGACY INSULATION | 5.0★ (2) | 16 mi |
| Platinum Insulation Inc. | 5.0★ (1) | 11 mi |
| Valley Spray Foam Insulation | 24 mi | |
| Western Building Materials Co | 4.0★ (1) | In Stockton |
National price ranges in USD, not adjusted for Stockton. 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 16 Stockton 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 Stockton 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 |