Comfort at Home or Business, All Year Long
Expert HVAC installation & repair across Long Island, NY — trusted by hundreds of families and businesses.
Our Services
Complete HVAC solutions for residential and commercial properties in Long Island.
Central A/C Installation
Professional installation of central air conditioning systems tailored to your home or business needs.
A/C Repair
Fast and reliable air conditioning repair service. We diagnose and fix all brands and models.
Mini-Split Systems
Ductless mini-split installation and repair for rooms, additions, and commercial spaces.
Boiler Repair
Expert boiler repair and maintenance to keep your home warm throughout the coldest months.
Heating Systems
Complete heating system installation, repair, and maintenance for all types of units.
Refrigerant Recharge
Safe and certified refrigerant recharge service to restore your A/C to peak performance.
Condenser & Compressor Repair
Expert repair of condensers and compressors, the heart of your air conditioning system.
Manufacturer Warranty
1-year manufacturer warranty on small products
Completed Projects Across Long Island
Real installations and repairs by our team in Nassau and Suffolk County.
What Our Customers Say
Real feedback from Long Island homeowners and businesses.
“Fast, reliable, and fairly priced. Oscar Mechanical fixed our A/C in less than two hours on the hottest day of summer!”
Maria G.
Hempstead, NY
“Installed a mini-split in our restaurant. Clean work, on time, and the price was very competitive. Highly recommended!”
James R.
Babylon, NY
“Our boiler stopped working in January. They came the same day and had it running within hours. Absolute lifesavers!”
Patricia M.
Mineola, NY
Ready to Stay Comfortable All Year?
Contact Oscar Mechanical today for expert HVAC service across Long Island, NY.
Contact Us
Fill out the form and we'll get back to you within 24 hours. Or call us directly for urgent service.
Mon–Sat: 7am – 7pm
Long Island, NY
Contact Us
Fill out the form and we'll get back to you within 24 hours. Or call us directly for urgent service.
(631) 767-3399