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The 10 Best Insulation Contractors in Boston (2026)
Insulation matters year-round in Boston, where cold winters, humid summers and a stock of older homes make efficient thermal protection a priority. This list was compiled in 2026 using a Bayesian-style ranking based on Google ratings and the number of reviews, so businesses with both high scores and substantial customer feedback rise to the top. We focused on contractors listed in the insulation category on Google and ordered them by the combined signal of score and review volume. Use this curated starting point when comparing estimates and scope for projects from attic top-ups to whole-house upgrades.
This ranking is computed from Google reviews (our method). Listings marked Partner are paid advertising spots: they sit alongside the ranking without changing its order.
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Advanced Green Insulation
Advanced Green Insulation tops our list because it pairs a perfect 5.0 Google rating with a very large review base—1,781 reviews—giving strong confidence in consistent customer satisfaction. Its name and Google category indicate a focus on insulation work, and the high review volume means the ranking weight heavily favors their sustained performance. For many local homeowners, that combination of rating and scale is a useful proxy for reliability.
The full ranking
Rogers Insulation Specialists
Rogers Insulation Specialists appears with a 5.0 rating across 312 reviews and is listed as an Insulation contractor in Framingham, MA. Its name suggests a specialization in insulation work, and the sizable review total supports a strong local reputation.
312 reviews
Evolution Insulation
Evolution Insulation holds a 5.0 Google rating from 101 reviews and is categorized as an Insulation contractor in Revere, MA. The review count is smaller than the top entries but still indicates repeated positive feedback.
101 reviews
US Spray Foam Insulation Corp
US Spray Foam Insulation Corp is rated 5.0 on Google with 44 reviews and is noted as an Insulation contractor located in Stoughton, MA. The name implies spray foam services, and the review tally reflects a modest but perfect score.
44 reviews
Newton Spray Foam Insulation
Newton Spray Foam Insulation shows a 5.0 rating based on 41 reviews and is listed in the Insulation contractor category at a Newton Centre, MA address. Its title indicates spray foam work and a compact but positive review record.
41 reviews
Turbo Insulation
Turbo Insulation carries a 5.0 Google rating from 24 reviews and is categorized as an Insulation contractor in Stoughton, MA. With fewer reviews than larger firms, it still maintains a perfect score among respondents.
24 reviews
Insulation & Energy Solutions
Insulation & Energy Solutions holds a 5.0 rating across 23 reviews and is listed as an Insulation contractor in Holbrook, MA. The company name suggests a combined focus on insulation and energy-related improvements.
23 reviews
Metro Chimney Specialist And Insulation Inc
Metro Chimney Specialist And Insulation Inc has a 5.0 Google rating from 12 reviews and is recorded in the Insulation contractor category in Roslindale, MA. The business name indicates chimney and insulation services within a neighborhood setting.
12 reviews
Neeeco
Neeeco is highly reviewed with a 4.9 Google rating from 4,175 reviews and is listed as an Insulation contractor at an address in Wilmington, MA. Although its average is slightly below perfect, the very large review volume makes it a major presence in the region.
4175 reviews
Mass Green Insulation
Mass Green Insulation posts a 4.9 rating based on 168 reviews and is categorized as an Insulation contractor in Hingham, MA. The name suggests an emphasis on environmentally minded insulation work, supported by a healthy number of reviews.
168 reviews
Frequently asked questions
How should I choose an insulation contractor in the Boston area?
Compare several contractors on price, materials, and experience with your specific project type (attic, walls, spray foam, etc.). Check Google reviews for patterns in customer feedback, verify licenses and insurance where required, and ask for a written estimate with scope, materials, and timeline.
What questions should I ask during an insulation estimate?
Ask which materials and R-values they recommend, whether they will air-seal before insulating, and how they handle ventilation and moisture control. Also request references, expected project duration, cleanup practices, and details on warranties or guarantees.
When is the best time to have insulation work done in New England?
Spring and fall are common times because temperatures are moderate and weather delays are less likely, but contractors work year-round. Scheduling in advance helps avoid busy-season delays and allows time to compare bids and check credentials.
How was this ranking created and why use Google reviews?
This list ranks businesses using Google ratings adjusted by review volume so firms with high scores and many reviews rank higher. Google reviews provide a publicly visible, user-generated signal of customer experience, and we updated the list in 2026 to reflect current ratings and counts.