13 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Bath: Seal It Insulation Systems, CR Score 61/100; 4.9★ from 190 Google reviews.
Most-reviewed: Mattra Inc., 61 Google reviews at 4.9★, the most of 13 ranked after Seal It Insulation Systems; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
13 Bath insulation contractors are ranked here by CR Score, from ten published factors. The median Google rating is 4.9★ across 13 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Best for |
|---|---|---|---|---|---|
| 1 | Seal It Insulation Systems | 61 | 4.9★ (190) | Topsham, 8 mi away | Overall |
| 2 | All-Around Home Performance | 54 | 5.0★ (53) | Gardiner, 23 mi away | — |
| 3 | Mattra Inc. | 54 | 4.9★ (61) | Lewiston, 24 mi away | Most reviews |
| 4 | NorthEast Insulation Services | 52 | 5.0★ (8) | Auburn, 12 mi away | — |
| 5 | Insulation Systems of Maine | 52 | 5.0★ (12) | Auburn, 17 mi away | — |
| 6 | Rook Energy Solutions, LLC | 51 | 5.0★ (13) | Yarmouth, 20 mi away | — |
| 7 | Quality Insulation | 50 | 3.5★ (35) | Yarmouth, 20 mi away | — |
| 8 | Spray Foam Of Maine | 50 | 4.6★ (11) | Auburn, 23 mi away | — |
| 9 | Zampell Refractories | 50 | 4.4★ (5) | Auburn, 24 mi away | — |
| 10 | Acadia Insulation, LLC | 49 | 5.0★ (6) | Lewiston, 21 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 review volume: 4.9★ from 190 Google reviews, the most in Bath.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gardiner, 23 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 53 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lewiston, 24 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 12 mi away
Ranked #4 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 Auburn, 17 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Yarmouth, 20 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Yarmouth, 20 mi away
Ranked #7 because of its Google rating and trade focus: 3.5★ from 35 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 23 mi away
Ranked #8 because of its Google rating and trade focus: 4.6★ from 11 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 24 mi away
Ranked #9 because of its Google rating and trade focus: 4.4★ 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 Lewiston, 21 mi away
Ranked #10 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 Lewiston, 23 mi away
Ranked #11 because of its Google rating and trade focus: 3.2★ 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 New Gloucester, 24 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gardiner, 24 mi away
Ranked #13 because of its Google rating and trade focus: 2.6★ from 5 Google reviews, listed on Google as “Air duct cleaning service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
13 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 |
|---|---|---|
| Cold Climate Home | In Bath | |
| Dalton Insulation Co | 3.0★ (1) | 11 mi |
| Damon Insulation Co | 22 mi | |
| Foam Pro Inc | 5.0★ (1) | 24 mi |
| G & G Insulation Co | 5.0★ (2) | 24 mi |
| Grey Ghost Construction | 19 mi | |
| New England Spray Foam Insulation | 13 mi | |
| Northeast Insulation Services | 15 mi | |
| Portland Insulation Inc | 5.0★ (2) | 24 mi |
| Steve's shop | 18 mi | |
| Thermal-Lock Inc | 24 mi | |
| Weather Seal Spray Foam Solutions | 5.0★ (1) | 19 mi |
| Weatherize Northeast | 5.0★ (1) | 24 mi |
National price ranges in USD, not adjusted for Bath. 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 13 Bath 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 Bath 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 |