14 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Winton: Straight Edge Insulation, CR Score 58/100; 5.0★ from 38 Google reviews.
Best for emergencies (open 24/7): Armor Roofing, posts 24/7 hours; ranked #2 of 14.
Most-reviewed: Straight Edge Roofing, Inc, 265 Google reviews at 4.9★, the most of 14 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
14 Winton insulation contractors are ranked here by CR Score, from ten published factors. 1 is open 24/7, 6 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.8★ across 14 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Straight Edge Insulation | 58 | 5.0★ (38) | Atwater, 4 mi away | — | Overall |
| 2 | Armor Roofing | 57 | 4.8★ (5) | Merced, 10 mi away | 24/7 | Emergencies |
| 3 | Straight Edge Roofing, Inc | 56 | 4.9★ (265) | Atwater, 4 mi away | — | Most reviews |
| 4 | Straight Edge Insulation of Turlock | 55 | 5.0★ (18) | Turlock, 16 mi away | — | — |
| 5 | C.A.V insulation Inc. | 54 | 5.0★ (25) | Los Banos, 24 mi away | Sat | — |
| 6 | Allstate Spray Foam Roofing | 53 | 5.0★ (19) | Ceres, 9 mi away | Sat | — |
| 7 | Empire Insulation Inc | 53 | 3.5★ (8) | Turlock, 13 mi away | — | — |
| 8 | Specialty Roofing of CA | 52 | 4.9★ (47) | Atwater, 4 mi away | — | — |
| 9 | Blaine Heating & Air Conditioning | 51 | 4.7★ (104) | Merced, 9 mi away | — | — |
| 10 | Elite Spray Foam Ceres | 51 | 4.2★ (5) | Ceres, 24 mi away | Sat · Sun | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Merced, 10 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Atwater, 4 mi away
Ranked #3 because of its Google rating and review volume: 4.9★ from 265 Google reviews, the most in Winton.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Turlock, 16 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Los Banos, 24 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ceres, 9 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Turlock, 13 mi away
Ranked #7 because of its Google rating and trade focus: 3.5★ from 8 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Atwater, 4 mi away
Ranked #8 because of its Google rating and review volume: 4.9★ from 47 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Merced, 9 mi away
Ranked #9 because of its Google rating and review volume: 4.7★ from 104 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ceres, 24 mi away
Ranked #10 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ceres, 24 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Modesto, 25 mi away
Ranked #12 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Turlock, 16 mi away
Ranked #13 because of its Google rating and trade focus: 3.2★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ceres, 24 mi away
Ranked #14 because of its Google rating and trade focus: 2.3★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
National price ranges in USD, not adjusted for Winton. 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 14 Winton 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 Winton 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 |