🐜AssistAnt · Pro directory
There are 539 HVAC companies within 25 miles of Old Greenwich, CT in the AssistAnt directory as of October 28, 2026, 1 of them based in Old Greenwich itself. None are verified by AssistAnt yet, so check a business’s license and insurance before you hire it. Ranked by activity, never paid: members who pressed Boost this week come first, then verified and claimed businesses, then businesses whose website we checked, then everyone else nearest first. No one can pay for a higher spot.
HVAC (heating & air conditioning) near Old Greenwich
Ranked by activity, never paid. Boosted this week first, then verified and claimed, then website checked, then everyone else nearest first. Not on this list? Add yourself free →
- Temp Air Company
Stamford, CT · 1.1 mi
Not verified yet
(203) 357-1727 Website ↗
- Efficient Heating & Cooling
Stamford, CT · 1.2 mi
Not verified yet
(203) 323-8740 Website ↗
- Harry P Carpenter & Sons
Stamford, CT · 1.5 mi
Not verified yet
(203) 348-7570 Website ↗
- Steve's Fuel Oil
Stamford, CT · 3.8 mi
Not verified yet
(203) 866-9163 Website ↗
- Versatile Mechanical Services
Port Chester, NY · 5.5 mi
Not verified yet
(914) 201-1372 Website ↗
- Swanson Plumbing & Heating LLC
Norwalk, CT · 9.8 mi
Not verified yet
(203) 515-8207 Website ↗
- BrightHome Energy Solutions
Elmsford, NY · 12.9 mi
Not verified yet
(914) 909-5300 Website ↗
- Sunrise Heating & Cooling
Scarsdale, NY · 13.0 mi
Not verified yet
(914) 965-9609 Website ↗
- Amx Cooling & Heating
Pleasantville, NY · 13.3 mi
Not verified yet
(914) 741-2400 Website ↗
- Alex Heating and Air Conditioning
Pelham, NY · 14.7 mi
Not verified yet
(914) 637-0077 Website ↗
- MJ Plumbing Heating Cooling
Pelham, NY · 14.8 mi
Not verified yet
(914) 940-0071 Website ↗
- Gree Mechanical Yonkers
Yonkers, NY · 14.9 mi
Not verified yet
(914) 222-9477 Website ↗
- Clarke & Clarke Plumbing and Heating, Inc
Irvington, NY · 15.5 mi
Not verified yet
(914) 591-9432 Website ↗
- Berry Burners of Nyack
Nyack, NY · 18.8 mi
Not verified yet
(845) 358-6661 Website ↗
- Systematic Control Corporation
Great Neck, NY · 19.0 mi
Not verified yet
(347) 594-5870 Website ↗
- Cesar's Heating & Cooling
Bronx, NY · 19.4 mi
Not verified yet
(718) 828-6700 Website ↗
- Thermoline AC
North Salem, NY · 19.7 mi
Not verified yet
(347) 508-6189 Website ↗
- Dynaire Corporation
Mineola, NY · 20.7 mi
Not verified yet
(516) 248-9550 Website ↗
- C. C. Controlled Combustion
Bronx, NY · 20.8 mi
Not verified yet
(718) 367-9800 Website ↗
- The Conair Group
Garden City Park, NY · 20.8 mi
Not verified yet
(833) 266-2471 Website ↗
- Valley Mechanical Services Inc.
Congers, NY · 21.2 mi
Not verified yet
(845) 353-0972 Website ↗
- US HVAC Home Service Bridgeport
Bridgeport, CT · 21.5 mi
Not verified yet
(203) 652-7801 Website ↗
- Brazing Mechanical Corporation
Deer Park, NY · 22.2 mi
Not verified yet
(631) 337-7850 Website ↗
- Albano Contracting
East Meadow, NY · 22.2 mi
Not verified yet
(516) 369-0732 Website ↗
- Custom Air Systems, Inc.
Bridgeport, CT · 22.4 mi
Not verified yet
(203) 333-1906 Website ↗
- SUNBELT PTAC INC.
New York, NY · 22.6 mi
Not verified yet
(212) 920-5480 Website ↗
- Long Island Energy Services
Nesconset, NY · 22.7 mi
Not verified yet
(516) 483-2233 Website ↗
- Cool Clean Services
Floral Park, NY · 22.7 mi
Not verified yet
(516) 775-2467 Website ↗
- Joe's Custom Installations Inc.
West Babylon, NY · 22.9 mi
Not verified yet
(516) 807-5722 Website ↗
- Commercial Instrumentation Services
Babylon, NY · 22.9 mi
Not verified yet
(631) 243-4300 Website ↗
Showing the 30 listed first. Search by ZIP code to see more.
More near Old Greenwich
Same order as above, continued.
- Hempstead HVAC New York
- Bergen Air Conditioning Dumont
- Eric M. Butler Plumbing & Heating Cortlandt Manor
- Benítez Plumbing Heating and Cooling System Hempstead
- Mcnamara Services Pearl River
- Anve Air Inc. New York
- Peepels Mechanical Deer Park
- Total Green Llc Nanuet
- Duro Dyne Corporation Bay Shore
- Gallettair Inc. Heating & Air Conditioning West Babylon
- Cfm Test & Balance Corporation Bethel
- First Source Contracting Westwood
- Rural Fuels Trumbull
- Temco Heating & Air Conditoning Inc Hillsdale
- S P Palmer and Sons Inc Old Greenwich
- Evolution Air, Llc Stamford
- Adj Of Stamford Inc Stamford
- Air Solutions, Inc. Stamford
- Bill's Refrigeration & Air Conditioning Stamford
- Btu Systems Stamford
- S.D.R. Plumbing & Heating, Inc. Stamford
- C&c Service Stamford
- Tri Tech Mechanical LLC Stamford
- Adj of Stamford Inc. Stamford
- Mazur Mechanical LLC Stamford
- Sila Heating & Air Conditioning Stamford
- Giuliani Air Conditioning & Heating Greenwich
- Controlled Temperatures Inc Stamford
- ENCON Heating and Air Conditioning Stamford
- Reliable Oil and Heat Company Stamford
- Schede Plumbing & Heating Stamford
- Thermocare Stamford
- New England Total Energy Greenwich
- Servcon Llc. Stamford
- Greenwich Heating & Cooling, LLC Greenwich
- Royal Comfort Port Chester
- Atmosphere Cooling & Heating LLC Stamford
- CV Longo Heating and Air Conditioning Stamford
- Brian's Air Conditioning and Heating Stamford
- VOLCANO Heating & Air Conditioning Port Chester
- Comfort Masters Stamford
- Polytemp Inc. Port Chester
- P&M Mechanical, Inc Port Chester
- Accurate Heating and Cooling Stamford
- Schiavone Plumbing & Heating Rye Brook
- Done Right Enterprises Inc Port Chester
- E M Plumbing & Heating Rye Brook
- HHvac Indoor Technology LLC Purchase
- US HVAC Home Service Yonkers Yonkers
- North Face Air Conditioning Bayville
- Evolution Hvac Llc Harrison
- Lesko Plumbing & Heating LLC Norwalk
- Creadore Air Conditioning Inc Harrison
- Air Care Technicians LLC Harrison
- Hellas Air Temp Inc Norwalk
- Silk Plumbing & Heating Inc Norwalk
- T&H Mechanical Systems Norwalk
- Astacio Heating Norwalk
- Pramer Fuel Inc Norwalk
- Unique Indoor Comfort West Harrison
- Acosta Home & Air Pro Mamaroneck
- Palco Mechanical White Plains
- Climate Care, LLC Norwalk
- McGuire's Mechanical Contracting Mamaroneck
- Global Hvac Mamaroneck
- The Heating & Cooling Company Norwalk
- Jlp Heating & Cooling Norwalk
- Cns Heating & Cooling Mamaroneck
- Goldens Bridge Plumbing Heating Mamaroneck
- Sila Heat & Air Conditioning White Plains
- Expert Services Mamaroneck
- Nu-Way Air Conditioning & Heating Mamaroneck
- R & R Heating & Cooling Valhalla
- Blue Moon Heating & Air Conditioning, Inc. White Plains
- South Street Plumbing and Heating Oyster Bay
- anthony valenti heating & cooling Norwalk
- Active Air Cooling & Heating Inc White Plains
- Technique Heating & Cooling White Plains
- Aqueduct Services Valhalla
- White Plains Heating & Air Conditioning Service, Inc. White Plains
- Glen Cove Plumbing and Heating Glen Cove
- International Refrigeration Glen Cove
- Ballas Plumbing Thornwood
- Tempco, Inc. Glen Cove
- First Heating & Cooling Company Westport
- Clean Air Quality Service, Inc. Hawthorne
- T.m. Bier & Associates | Building Automation Systems Experts Glen Cove
- Tri-star Control Systems Inc Hawthorne
- One Hour Heating & Air Conditioning Cold Spring Harbor
- Buglione Plumbing & Heating Thornwood
- Cns Heating & Cooling, Inc Thornwood
- D.p. Wolff, Inc. Elmsford
- Automated Control Logic Inc. Thornwood
- JLS Mechanical, LLC White Plains
- Hvac Specialist Inc Hawthorne
- D P Wolff Hawthorne
- Thermodynamix LLC Elmsford
- Airtemp Conditioning Service Inc Elmsford
- Save-O-Seal White Plains
- Advanced Environmental Elmsford
- Ocean Air HVAC Elmsford
- Trademark Mechanical Elmsford
- Carl Carilli Plumbing & Heating New Rochelle
- HVAC Care Plus New Rochelle
- Bruni & Campisi, Inc. Elmsford
- Ap Mechanical Hawthorne
- Ductless4less Hawthorne
- Trane Commercial Sales Office Hawthorne
- A. Borrelli Mechanical Pleasantville
- Yonkers Plumbing & Heating Sea Cliff
- ENCON Heating and Air Conditioning Mount Kisco
- O'Keefe Plumbing & Heating, Inc. Sea Cliff
- Amhac Eastchester
- Smyth Plumbing Inc Glen Head
- N&N Heating and Cooling Bedford Hills
- Cannondale Heating & Air Conditioning Wilton
- New Canaan Oil Company Wilton
- AIRE PTAC SERVICE INC Tarrytown
- Rite Temp HVAC New Rochelle
- Bob's Plumbing & Heating Inc Northport
Questions
- How many HVAC companies are near Old Greenwich, CT?
- 539 within 25 miles, 1 in Old Greenwich, as of October 28, 2026.
- Which HVAC companies near Old Greenwich, CT are verified?
- None yet. Verified means AssistAnt checked the business registration and insurance; unverified listings come from public business records.
- Can a business pay to rank higher on AssistAnt?
- No. Ranked by activity, never paid: members who pressed Boost this week come first, then verified and claimed businesses, then businesses whose website we checked, then everyone else nearest first. No one can pay for a higher spot. AssistAnt never sells your contact information.
Nearby towns
- Stamford, CT 3 mi
- Greenwich, CT 5 mi
- Port Chester, NY 6 mi
- Rye Brook, NY 6 mi
- Purchase, NY 8 mi
- Bayville, NY 9 mi
- Harrison, NY 9 mi
- West Harrison, NY 10 mi
- Norwalk, CT 10 mi
- Mamaroneck, NY 11 mi