16 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Williston: Affordable Energy Insulation Company, CR Score 55/100; 4.6★ from 11 Google reviews.
Most-reviewed: Overhead Door Co. of Burlington, 57 Google reviews at 3.7★, the most of 16 ranked; ranked #8.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
16 Williston insulation contractors are ranked here by CR Score, from ten published factors. 9 open Saturdays, based on posted hours. The median Google rating is 4.6★ across 16 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Affordable Energy Insulation Company | 55 | 4.6★ (11) | Burlington, 8 mi away | — | Overall |
| 2 | Bugbee Insulation | 53 | 2.8★ (19) | Burlington, 1 mi away | — | — |
| 3 | WORK'S Attic Insulation & Roofing Services Hinesburg, VT | 52 | 4.8★ (13) | Colchester, 5 mi away | Sat · Evenings | — |
| 4 | Building Energy | 52 | 4.4★ (42) | Williston | — | — |
| 5 | Environmental Foam of Vermont | 51 | 3.9★ (7) | Essex Junction, 5 mi away | — | — |
| 6 | BBCI Attic-Solution & Insulation's & Roofing Service Essex Junction, VT | 51 | 4.8★ (9) | Essex Junction, 4 mi away | Sat · Evenings | — |
| 7 | Specialty Coatings LLC | 51 | 4.0★ (3) | South Burlington, 6 mi away | — | — |
| 8 | Overhead Door Co. of Burlington | 51 | 3.7★ (57) | Williston | — | Most reviews |
| 9 | LLC Attic-Solution & Insulation's & Roofing Service Essex Junction, VT | 50 | 5.0★ (7) | Essex Junction, 5 mi away | Sat · Evenings | — |
| 10 | Patriot Insulation Inc | 50 | 4.2★ (5) | Colchester, 7 mi away | — | — |
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: 4.6★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Burlington, 1 mi away
Ranked #2 because of its Google rating and trade focus: 2.8★ from 19 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Colchester, 5 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 13 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Williston
Ranked #4 because of its Google rating and review volume: 4.4★ from 42 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Essex Junction, 5 mi away
Ranked #5 because of its Google rating and trade focus: 3.9★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Essex Junction, 4 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 9 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in South Burlington, 6 mi away
Ranked #7 because of its Google rating and trade focus: 4.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Williston
Ranked #8 because of its Google rating and review volume: 3.7★ from 57 Google reviews, the most in Williston.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Essex Junction, 5 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Colchester, 7 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 Burlington, 7 mi away
Ranked #11 because of its Google rating and trade focus: 4.6★ from 8 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Colchester, 8 mi away
Ranked #12 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Essex Junction, 6 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Burlington, 7 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Burlington, 7 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “General contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Colchester, 12 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 4 Google reviews, listed on Google as “Construction company”.
Based on 8 of 10 factors; credentials and recency not yet collected.
14 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 |
|---|---|---|
| Acousta Therm Corporation | 6 mi | |
| Ashley Drywall | 5 mi | |
| Barron Insulation Sales | 5 mi | |
| Burlington Insulation Therma Pros | 5.0★ (1) | 8 mi |
| Champlain Valley Insulation | 4 mi | |
| DMN Attic-Solution & Insulation's & Roofing Service Hinesburg, VT | 5.0★ (2) | 7 mi |
| Energy Alternatives | 7 mi | |
| Energy Efficient Construction | 4 mi | |
| G&Y Attic Insulation Services & Roofing Services Of Burlington, VT | 5.0★ (1) | 7 mi |
| LEB Attic-Solution & Insulation's & Roofing Service Jericho, VT | 5.0★ (2) | 8 mi |
| North Country Mechanical Insulators | 5.0★ (2) | 5 mi |
| Northeast Construction Inc | In Williston | |
| RBM'S Attic-Solution & Insulation's & Roofing Service Essex Junction, VT | 5.0★ (1) | 5 mi |
| Z - PCM Attic Insulation & Roofing Services Co, VT 05404 | 5.0★ (2) | 7 mi |
National price ranges in USD, not adjusted for Williston. 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 Williston 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 Williston 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 |