5 HVAC Service Contractors in Locust Valley, NY
Top-Rated HVAC Service Contractors in Locust Valley
Bailey Arboretum
“Six of seven reviewers awarded 4 or 5 stars, with recurring themes of peaceful atmosphere, family-friendly amenities, and free admission. Positive reviews cite…”
L. Graziose Plumbing Heating & Cooling
“Six of seven reviewers gave 5-star ratings, with recurring praise for same-day emergency response, upfront pricing, and technicians who explain repairs in…”
All HVAC Service Contractors (5 total)
G Sicuranza Ltd
“All 9 reviewers award 5 stars, with recurring praise for professionalism, same-day responsiveness, and…”
HVAC Service Costs in Locust Valley
General HVAC service pricing across maintenance, repair, and installation in Locust Valley.
| 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 Locust Valley, NY: What to Expect
Locust Valley sits on the North Shore of Long Island, where the proximity to Long Island Sound creates a coastal climate that demands both heating and cooling systems throughout the year. Winters may be milder than inland areas, but the heating season runs from November through March, while summer humidity pushes air conditioning use from June into September. Eight HVAC contractors serve this community, and their collective average rating of 4.9 reflects the high standards homeowners expect when maintaining comfort systems in a four-season environment.
Service costs in the area follow predictable ranges. A routine tune-up typically costs $76-$216, while standard repairs can run from $162 to $1,296 depending on the issue. Service calls and diagnostics generally fall between $81 and $216. New York does not require a statewide HVAC license, so contractors operate under local licensing requirements that vary by municipality.
Customer feedback highlights what distinguishes the best contractors in the area. Diverse Repairs Inc. earned all five stars from 88 reviewers, with clients repeatedly mentioning Ed for his responsiveness and fair pricing. L. Graziose Plumbing Heating & Cooling also draws strong recommendations for same-day emergency response and technicians who take time to explain repairs in detail. These patterns in reviews point to the value homeowners place on clear communication and reliable turnaround times when systems fail.