61/100CR Score
Ranked #1 because of its Google rating and review volume: 4.7★ from 101 Google reviews, the most in Westbrook.
- 4.7★ from 101 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 190 Riverside St #2A, Portland, ME 04103
Best Insulation Contractors in Westbrook, ME (2026)
17 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Westbrook: Evergreen Home Performance, CR Score 61/100; 4.7★ from 101 Google reviews.
- 2
Most-reviewed: Horizon Homes, 62 Google reviews at 4.9★, the most of 17 ranked after Evergreen Home Performance; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
17 Westbrook insulation contractors are ranked here by CR Score, from ten published factors. 2 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 4.8★ across 17 rated businesses.
Most of this list also appears on the Insulation contractors in South Portland Gardens ranking. See Insulation contractors in South Portland Gardens
Top 10 insulation contractors in Westbrook at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Evergreen Home Performance | 61 | 4.7★ (101) | Portland, 2 mi away | — | Overall |
| 2 | Horizon Homes | 61 | 4.9★ (62) | Westbrook | — | Most reviews |
| 3 | Casco Bay Insulation Inc. | 57 | 5.0★ (18) | Westbrook | — | — |
| 4 | Northeast Spray Insulation | 57 | 4.4★ (46) | Portland, 4 mi away | — | — |
| 5 | Simply Pest Solutions | 57 | 4.8★ (30) | Gorham, 13 mi away | Sat | — |
| 6 | Southern Maine Spray Insulation | 57 | 4.7★ (25) | Portland, 4 mi away | — | — |
| 7 | Anderson Insulation of Maine | 57 | 4.8★ (38) | Saco, 11 mi away | — | — |
| 8 | Kessler Home Consulting LLC | 56 | 5.0★ (4) | Gorham, 3 mi away | Sat · Sun | — |
| 9 | All In One Insulation | 55 | 4.8★ (18) | Gorham, 10 mi away | — | — |
| 10 | Builders Installed Products Maine | 54 | 4.1★ (13) | Portland, 4 mi away | — | — |
The 17 best insulation contractors in Westbrook, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Westbrook
61/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 62 Google reviews, listed on Google as “Insulation contractor”.
- 4.9★ from 62 Google reviews
- Hours
- Mon–Fri 7:30 AM–4 PM · Sat–Sun closed
- Address
- 865 Spring St, Westbrook, ME 04092
Based in Westbrook
57/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 18 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 84D Warren Ave, Westbrook, ME 04092
Based in Portland, 4 mi away
57/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.4★ from 46 Google reviews, listed on Google as “Insulation contractor”.
- 4.4★ from 46 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 511 Riverside Industrial Pkwy, Portland, ME 04103
Based in Gorham, 13 mi away
57/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 30 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 30 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat 10 AM–3 PM · Sun closed
- Address
- Richville Rd, Standish, ME 04084
Based in Portland, 4 mi away
57/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.7★ from 25 Google reviews, listed on Google as “Insulation contractor”.
- 4.7★ from 25 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 21 Tee Dr, Portland, ME 04103
Based in Saco, 11 mi away
57/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 38 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 38 Google reviews
- Hours
- Mon–Fri 6 AM–5 PM · Sat–Sun closed
- Address
- 72 Industrial Park Rd, Saco, ME 04072
Based in Gorham, 3 mi away
56/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 4 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
Based in Gorham, 10 mi away
55/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 18 Google reviews, listed on Google as “Insulation contractor”.
- 4.8★ from 18 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
Based in Portland, 4 mi away
54/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.1★ from 13 Google reviews, listed on Google as “Insulation contractor”.
- 4.1★ from 13 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 515 Riverside Industrial Pkwy, Portland, ME 04103
Based in Yarmouth, 12 mi away
53/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 13 Google reviews
- Hours
- Mon–Fri 7:30 AM–4 PM · Sat–Sun closed
- Address
- 305 US-1, Yarmouth, ME 04096
Based in Yarmouth, 13 mi away
52/100CR ScoreRanked #12 because of its Google rating and trade focus: 3.5★ from 35 Google reviews, listed on Google as “Insulation contractor”.
- 3.5★ from 35 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 65 Downeast Dr, Yarmouth, ME 04096
Based in Gorham, 10 mi away
52/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.1★ from 11 Google reviews, listed on Google as “Insulation contractor”.
- 4.1★ from 11 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 20 Fort Hill Rd, Standish, ME 04084
Based in Auburn, 16 mi away
52/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 12 Google reviews
- Hours
- Mon–Fri 8 AM–3 PM · Sat–Sun closed
Based in Gorham, 7 mi away
50/100CR ScoreRanked #15 because of its Google rating and trade focus: 2.0★ from 6 Google reviews, listed on Google as “Insulation contractor”.
- 2.0★ from 6 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 231 Roosevelt Trail, Windham, ME 04062
Based in New Gloucester, 18 mi away
49/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Insulation contractor”.
- 5.0★ from 5 Google reviews
- Hours
- Mon–Fri 7 AM–4 PM · Sat–Sun closed
- Address
- 89 Lewiston Rd, New Gloucester, ME 04260
#17 HeatMizer
Based in Lebanon, 10 mi away
45/100CR ScoreRanked #17 because of its Google rating and trade focus: 3.7★ from 6 Google reviews, listed on Google as “HVAC contractor”.
- 3.7★ from 6 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
How much do insulation contractors cost in Westbrook?
National price ranges in USD, not adjusted for Westbrook. 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 |
How we ranked Westbrook insulation contractors
We scored 17 Westbrook 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 Westbrook 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 |
Insulation contractors in Westbrook: frequently asked questions
Who is the best insulation contractor in Westbrook?
By CR Score, the highest-ranked insulation contractor in Westbrook, ME is Evergreen Home Performance with a CR Score of 61/100. It has 4.7★ from 101 Google reviews. Horizon Homes (#2) and Casco Bay Insulation Inc. (#3) follow. We ranked 17 insulation contractors on ten factors, last updated October 22, 2026.
How many insulation contractors are there in Westbrook?
ContractorsRanked ranks 17 insulation contractors serving Westbrook, ME. 2 of them are based in Westbrook; the rest serve it from nearby towns. Counts are as of October 2026.
Which insulation contractors in Westbrook work on weekends?
2 of 17 ranked insulation contractors post Saturday hours and 1 post Sunday hours. The highest-ranked open Saturdays are Simply Pest Solutions (#5) and Kessler Home Consulting LLC (#8). Posted hours are office hours; crews may book weekend jobs separately.
How much does attic insulation cost in Westbrook?
Attic insulation typically costs $1,700 to $2,500, with $2,100 typical (Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range). This is a national range, not adjusted for Westbrook. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Westbrook insulation contractors have?
The median Google rating among 17 rated insulation contractors in Westbrook is 4.8★, with a median of 18 reviews. Evergreen Home Performance has the most, 101 reviews, and ranks #1. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank insulation contractors?
Each insulation contractor gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do insulation contractors outside Westbrook count in this ranking?
Yes, if they are within 25 mi of the Westbrook city center, our service radius for insulation contractors. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Can insulation contractors pay to rank higher on ContractorsRanked?
No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.
Update log for Westbrook
- October 2026: CR Scores recalculated for 17 insulation contractors serving Westbrook.
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