9 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Greenfield: JPR Attic Insulation & Roofing Services Co, MA, CR Score 82/100; 4.7★ from 74 Google reviews; open Saturdays until 9:30 PM.
Most-reviewed: American Installations, 1,054 Google reviews at 4.9★, the most of 9 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
9 Greenfield insulation contractors are ranked here by CR Score, from 8 published factors. 2 open Saturdays, based on posted hours. The median Google rating is 4.8★ across 9 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | JPR Attic Insulation & Roofing Services Co, MA | 82 | 4.7★ (74) | Greenfield | Sat · Evenings | Overall |
| 2 | Cozy Home Performance, LLC | 73 | 4.7★ (28) | Amherst, 15 mi away | — | — |
| 3 | American Installations | 73 | 4.9★ (1,054) | Chicopee, 24 mi away | Evenings | Most reviews |
| 4 | Go Green Home Performance | 71 | 4.8★ (18) | Amherst Center, 21 mi away | — | — |
| 5 | Athena Building Performance, Inc. | 71 | 4.8★ (26) | South Hadley, 24 mi away | — | — |
| 6 | Energia LLC | 70 | 5.0★ (5) | Chicopee, 19 mi away | — | — |
| 7 | Foam USA, LLC | 69 | 5.0★ (12) | Easthampton, 22 mi away | — | — |
| 8 | DOUP Attic Insulation & Roofing Services South Hadley, MA | 68 | 5.0★ (7) | South Hadley, 25 mi away | Sat · Evenings | — |
| 9 | ALL Star Insulation & Siding | 64 | 3.6★ (26) | Easthampton, 22 mi away | — | — |
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.
Ranked #1 because of its Google rating and trade focus: 4.7★ from 74 Google reviews, listed on Google as “Insulation contractor”.
Based in Amherst, 15 mi away
Ranked #2 because of its Google rating and trade focus: 4.7★ from 28 Google reviews, listed on Google as “Insulation contractor”.
Based in Chicopee, 24 mi away
Ranked #3 because of its Google rating and review volume: 4.9★ from 1,054 Google reviews, the most Google reviews on this list (1,054).
Based in Amherst Center, 21 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 18 Google reviews, listed on Google as “Insulation contractor”.
Based in South Hadley, 24 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 26 Google reviews, listed on Google as “Insulation contractor”.
Based in Chicopee, 19 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based in Easthampton, 22 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Insulation contractor”.
Based in South Hadley, 25 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Contractor”.
Based in Easthampton, 22 mi away
Ranked #9 because of its Google rating and trade focus: 3.6★ from 26 Google reviews, listed on Google as “Roofing contractor”.
National price ranges in USD, not adjusted for Greenfield. 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 9 Greenfield 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 Greenfield 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 |