Your Family-Owned
Long Island HVAC Company
At Around The Clock HVAC, we're more than just another heating and air conditioning company — we're a local Long Island family that understands how important comfort, trust, and dependable service are when something goes wrong in your home or business.
Long Island's Family-Owned
HVAC Company
Neighbors Serving Neighbors
As homeowners and parents ourselves, we know what it feels like when the AC stops working during a heatwave, the heat goes out in the middle of winter, or a business can't afford refrigeration downtime. That's why we built Around The Clock HVAC around one simple promise: treat every customer the way we'd want our own family treated.
We proudly provide trusted HVAC repair, air conditioning service, heating repair, boiler service, ductless mini-split installation, and commercial refrigeration repair across all of Long Island, serving both Nassau County and Suffolk County with fast, honest, professional service.
Whether you need emergency HVAC repair in Nassau County, boiler service in Suffolk County, AC installation on Long Island, or reliable preventative maintenance — our team is ready to help.
Proudly serving homeowners and businesses throughout Seaford, Massapequa, Wantagh, Bellmore, Merrick, Babylon, Huntington, Smithtown, Islip, and communities across Nassau and Suffolk County.
"We're not a national chain — we're your neighbors. Our family lives here, and we take care of every home and business across Long Island like it's our own."
— Gregory Miller, Owner & Founder
Our Service Commitment
Built on Family Values.
Backed by Professional Service.
Around The Clock HVAC was founded by Gregory Miller with a simple belief: customers deserve better. Better communication. Better workmanship. Better response times. And a company that actually cares when you call.
We're not a giant franchise or a call center dispatching whoever happens to be available. We're a family-owned Long Island HVAC company that takes pride in building real relationships with the homeowners and businesses we serve.
When you call us, you're calling people who live here, work here, and care about this community.
Full-Service HVAC Solutions
Across Long Island
Our experienced technicians provide complete residential and commercial HVAC services across Nassau and Suffolk Counties.
From a family home in Seaford, to a restaurant in Babylon, to a business in Huntington — we proudly serve customers across all of Long Island.
Why Long Island Families
& Businesses Choose Us
Because we believe service should feel personal. When someone invites us into their home, that trust means everything.
Reviews From Around Long Island
Great Service
Still Matters
Not rushed service. Not pushy sales tactics. Not treating customers like numbers. Just honest HVAC service from a local family that takes pride in helping neighbors stay comfortable year-round.
Because when your comfort is on the line, who you call matters.
Around The Clock HVAC — Long Island's trusted family-owned heating, cooling, and refrigeration team.
CALL (516) 214-0178