7 HVAC Service Contractors in Greenwich, CT
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Top-Rated HVAC Service Contractors in Greenwich
New England Total Energy
“Two hundred forty-three reviewers award this contractor an exceptional 4.9-star average, with multiple customers specifically praising same-day emergency…”
Giuliani Air Conditioning & Heating
“84 reviewers award perfect 5-star scores, with Jack Giudice named directly in three detailed accounts covering thermostat installation, compressor replacement,…”
All HVAC Service Contractors (7 total)
First String Plumbing, Heating & Cooling
“All 5 reviewers award 5 stars, with 3 explicitly mentioning same-day or 24-hour emergency response. Two…”
American Services Group LLC
“All 25 reviews award five stars, with eight reviewers specifically praising the teams transparency through…”
A-1 Greenwich Plumbing & Heating
“Of 5 detailed reviews, 2 award 5 stars citing professional conduct and fair pricing, while 3 assign 1 star…”
HVAC Service Costs in Greenwich
General HVAC service pricing across maintenance, repair, and installation in Greenwich.
| Service | Low | Average | High |
|---|---|---|---|
Service call / diagnostic | $81 | $130 | $216 |
Routine tune-up (single system) | $76 | $135 | $216 |
Standard repair (avg) | $162 | $648 | $1,296 |
Major repair (compressor, heat exchanger) | $1,620 | $2,700 | $3,780 |
New system installation (mid-range) | $7,020 | $11,340 | $15,120 |
Full HVAC replacement AC + furnace combined | $12,517 | $14,504 | $15,228 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
HVAC Service in Greenwich, CT: What to Expect
Greenwich sits on Long Island Sound, where the maritime influence tempers extremes but still produces humid summers and milder winters than inland Connecticut; that seasonal swing drives steady demand for heating and cooling maintenance. Local homeowners rely on a small network—seven contractors serving the area, averaging a 4.7 rating across 520 reviews, and four firms offering 24/7 responses—so hvac-service Greenwich is an active, competitive market.
Detailed pricing from topCostItems was not provided in the supplied data, so exact ranges can’t be listed here; clients should expect quotes to vary by system size, efficiency, and replacement complexity. Connecticut law requires HVAC contractors to hold the Heating, Cooling and Piping (HPC) Contractor License — Class 1 from the DCP, and licensed status should be confirmed before signing a service agreement to avoid liability and ensure code-compliant work.
Customer highlight fields were empty, so review patterns are a useful proxy: high average ratings and numerous reviews suggest consistent workmanship, while 24/7 availability is a distinguishing feature for emergency needs. When hiring, prioritize verified licensing, clear written estimates, documented warranties, and examples of recent work on coastal properties to address humidity-related issues.