111 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Green Knoll: EcoShield Pest Solutions, CR Score 60/100; 4.8★ from 6,084 Google reviews; open Saturdays until 1 PM.
Best for emergencies (open 24/7): Green Rodent Restoration LLC, posts 24/7 hours; ranked #4 of 111.
Most-reviewed: Princeton Air Conditioning, 2,172 Google reviews at 4.7★, the most of 111 ranked after EcoShield Pest Solutions; ranked #12.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
111 Green Knoll insulation contractors are ranked here by CR Score, from ten published factors. 9 are open 24/7, 67 open Saturdays and 24 open Sundays, based on posted hours. The median Google rating is 4.8★ across 111 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | EcoShield Pest Solutions | 60 | 4.8★ (6,084) | Edison, 15 mi away | Sat | Overall |
| 2 | Atticrawl LLC | 58 | 4.9★ (1,005) | Woodbridge, 18 mi away | Sun · Evenings | — |
| 3 | Brunswick All Insulation Pros | 57 | 5.0★ (20) | Somerville, 3 mi away | Sat · Sun | — |
| 4 | Green Rodent Restoration LLC | 57 | 4.6★ (40) | Edison, 13 mi away | 24/7 | Emergencies |
| 5 | DoctorEnergySmart | 56 | 4.9★ (146) | Dover, 20 mi away | Sat · Sun | — |
| 6 | THI Home Insulation and Construction | 56 | 5.0★ (65) | Plainfield, 10 mi away | Sat | — |
| 7 | Ace Handyman Services Bernards | 55 | 5.0★ (334) | Bernardsville, 7 mi away | Sat · Sun | — |
| 8 | Thermal Shield Insulation | 55 | 4.9★ (106) | East Hanover, 23 mi away | Sat · Sun · Evenings | — |
| 9 | Brunswick Insulation Pros | 55 | 4.9★ (36) | East Brunswick, 16 mi away | Sat · Sun | — |
| 10 | Green Care Air Ducts and Chimney Services | 54 | 5.0★ (194) | East Brunswick, 12 mi away | 24/7 | — |
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 review volume: 4.8★ from 6,084 Google reviews, the most in Green Knoll.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Woodbridge, 18 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 1,005 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Somerville, 3 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Edison, 13 mi away
Ranked #4 because of its Google rating and trade focus: 4.6★ from 40 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Dover, 20 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 146 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Plainfield, 10 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bernardsville, 7 mi away
Ranked #7 because of its Google rating and review volume: 5.0★ from 334 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Hanover, 23 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 106 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Brunswick, 16 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 36 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Brunswick, 12 mi away
Ranked #10 because of its Google rating and review volume: 5.0★ from 194 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Linden, 18 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Princeton, 21 mi away
Ranked #12 because of its Google rating and review volume: 4.7★ from 2,172 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Plainfield, 10 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Plainfield, 10 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 68 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bedminster, 6 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 8 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Highland Park, 12 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Brunswick, 19 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bound Brook, 5 mi away
Ranked #18 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Somerset, 6 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 15 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Budd Lake, 20 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Highland Park, 12 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 52 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Budd Lake, 20 mi away
Ranked #22 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Brunswick, 12 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Robertsville, 24 mi away
Ranked #24 because of its Google rating and review volume: 4.6★ from 1,213 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in New Brunswick, 12 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 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 111 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 |
|---|---|---|
| Atticare Parsippany | 5.0★ (1) | 18 mi |
| Cornerstone Carpentry & Contractor | 5.0★ (1) | 16 mi |
| Fazio Construction Inc | 5.0★ (1) | 19 mi |
| Ford's Home Improvement 56 | 3.0★ (2) | 22 mi |
| JJG - Attic Insulation & Roofing Services Co, NJ | 5.0★ (2) | 14 mi |
| JLS Construction | 5.0★ (1) | 19 mi |
| M&C Quality Construction | 5.0★ (1) | 10 mi |
| M&M Attic-Solution & Insulation's & Roofing Service Linden, NJ | 5.0★ (2) | 20 mi |
| Marv Insulation LLC | 5.0★ (2) | 22 mi |
| Michael Angelo's Construction | 3.0★ (2) | 19 mi |
| Paul Master Contractors LLC | 5.0★ (1) | 17 mi |
| Perimeter Insulation Inc | 5.0★ (2) | 6 mi |
| Premier Insulators | 5.0★ (2) | 20 mi |
| Ribba Wood Working | 5.0★ (2) | 14 mi |
| Russ Nelson Paint & Contracting | 5.0★ (1) | 7 mi |
| Score Spray Foam | 3.0★ (2) | 24 mi |
| United Spray Foam | 5.0★ (2) | 19 mi |
| Viola Construction Co Inc | 5.0★ (1) | 11 mi |
| WJ Best Insulation | 5.0★ (1) | 16 mi |
| ZND-Post Attic-Solution & Insulation's & Roofing Service Sayreville, NJ | 4.5★ (2) | 18 mi |
National price ranges in USD, not adjusted for Green Knoll. 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 111 Green Knoll 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 Green Knoll 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 |