Insulation Contractors in Connecticut: Ranked Lists by City (2026)
108 cities with a ranked listUpdated 0 paid placements in any rankingHow we rank →
We rank insulation contractors in 108 Connecticut cities, 6,212 city rankings in all. The largest lists are Greenwich (115), Cos Cob (108) and Old Greenwich (108).
Insulation contractors by city in Connecticut
Every Connecticut city with a ranked list of insulation contractors, largest first. Each list ranks businesses within 25 mi of the city.
Highest CR Scores among Connecticut insulation contractors
Each score is computed within its own city list, so use the city pages to compare businesses. Shown for orientation, not as a state ranking.
| # | Business | CR Score | City list | Google rating |
|---|---|---|---|---|
| 1 | Anchor Home Inspection | 64 | #1 in East Haddam | 5.0★ (611) |
| 2 | Eco Energy Guard LLC | 64 | #1 in Winsted | 5.0★ (96) |
| 3 | Aj Insulation LLC | 62 | #2 in Torrington | 5.0★ (24) |
| 4 | Fogarty's Home Services | 61 | #1 in Hartford | 4.8★ (168) |
| 5 | Discount Insulation Company | 61 | #1 in Greenwich | 5.0★ (81) |
| 6 | New England Performance Insulation | 61 | #1 in Milford | 5.0★ (153) |
| 7 | Klaus Larsen Roofing | 61 | #1 in Hebron | 4.8★ (521) |
| 8 | Best Home Performance | 60 | #2 in East Haddam | 4.6★ (43) |
| 9 | Champion | 60 | #3 in Torrington | 5.0★ (21) |
| 10 | Koala Insulation of Central Connecticut | 60 | #1 in Cromwell | 5.0★ (158) |