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Long Island Heating & AC Repair, Installation & Maintenance

One Hour Heating & Air Conditioning® of Long Island is the premier provider of HVAC services for Long Island and the surrounding areas. Our team is highly trained, courteous, and always on time! We’ve earned our reputation for providing great service by adhering to a strict code of ethics and never settling for providing less than a customer deserves. Besides sending a highly trained tech to your home, we also send a well-stocked vehicle, which means our experts can complete most jobs in just one visit.

All our service is backed by the UWIN Guarantee, which ensures that we use only high-quality materials and solutions for your home's comfort. Whether your heater breaks on the coldest night of the year or your system needs regular maintenance, One Hour Heating & Air Conditioning® of Long Island is ready to help!

The Homeowner’s Choice for AC, Heater & Furnace Repairs in Long Island

We’ve gathered a loyal base of customers because of our dedication to their happiness. We provide neighborly service because we are your neighbors! One Hour Heating & Air Conditioning® of Long Island might carry the name of a nationally-recognized HVAC brand, but we’re an independently owned and operated business. As a One Hour location, we provide some of the best guarantees in the industry. We promise that you’ll be 100% satisfied with our work, that we’ll show up on time, and that we’ll provide upfront prices! If any aspect of our work doesn’t meet your expectations, we’ll make it right at no cost to you! You’ve got nothing to lose, call our Long Island HVAC service pros today!

Special Offers Backed by Our
100% Satisfaction Guarantee

Always On Time... Or You Don't
Pay A Dime

We Have A Reputation For Being Punctual, Friendly, and Knowledgeable

    “I called about a problem with heater in a home I had just purchased, and it turned out that "One Hour" was the company that had installed it just one year prior. They came out to take care of the ...”

    “The installation team was professional and speedy. The appreciation shown to me for being a customer afterward was awesome!”

    “My technicians were friendly and on-time. They didn't try for a hard sell — they just gave me helpful advice.”

    “Their prompt and courteous services are something a lot of tradesmen have forgotten over the years.”

    “No need to wait a week — just call One Hour. When I scheduled, the technicians came the very next morning, on time!”

    “I have had them for 10 plus years, and I can't say enough good things about these people.”

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  • Areas We Serve
    • Albertson
    • Amagansett
    • Amityville
    • Aquebogue
    • Atlantic Beach
    • Babylon
    • Baldwin
    • Bay Shore
    • Bayport
    • Bayville
    • Bellmore
    • Bellport
    • Bethpage
    • Blue Point
    • Bohemia
    • Brentwood
    • Bridgehampton
    • Brightwaters
    • Brookhaven
    • Calverton
    • Carle Place
    • Cedarhurst
    • Center Moriches
    • Centerport
    • Central Islip
    • Cold Spring Harbor
    • Commack
    • Copiague
    • Cutchogue
    • Deer Park
    • East Hampton
    • East Islip
    • East Marion
    • East Meadow
    • East Moriches
    • East Northport
    • East Norwich
    • East Quogue
    • East Rockaway
    • Eastport
    • Elmont
    • Far Rockaway
    • Farmingdale
    • Floral Park
    • Franklin Square
    • Freeport
    • Garden City
    • Glen Cove
    • Glen Head
    • Glenwood Landing
    • Great Neck
    • Great River
    • Greenlawn
    • Greenport
    • Greenvale
    • Hampton Bays
    • Hauppauge
    • Hempstead
    • Hewlett
    • Hicksville
    • Holbrook
    • Holtsville
    • Huntington
    • Huntington Station
    • Inwood
    • Island Park
    • Islandia
    • Islip
    • Islip Terrace
    • Jamesport
    • Jericho
    • Kings Park
    • Laurel
    • Lawrence
    • Levittown
    • Lindenhurst
    • Locust Valley
    • Long Beach
    • Lynbrook
    • Malverne
    • Manhasset
    • Manorville
    • Massapequa
    • Massapequa Park
    • Mastic
    • Mastic Beach
    • Mattituck
    • Medford
    • Melville
    • Merrick
    • Mill Neck
    • Mineola
    • Montauk
    • Moriches
    • New Hyde Park
    • New Suffolk
    • North Babylon
    • Northport
    • Oakdale
    • Ocean Beach
    • Oceanside
    • Old Bethpage
    • Old Westbury
    • Orient
    • Oyster Bay
    • Patchogue
    • Peconic
    • Plainview
    • Port Washington
    • Quogue
    • Remsenburg
    • Ridge
    • Riverhead
    • Rockville Centre
    • Ronkonkoma
    • Roosevelt
    • Rosedale
    • Roslyn
    • Roslyn Heights
    • Sag Harbor
    • Sagaponack
    • Sayville
    • Sea Cliff
    • Seaford
    • Shelter Island
    • Shelter Island Heights
    • Shirley
    • Shoreham
    • South Jamesport
    • Southampton
    • Southold
    • Speonk
    • Syosset
    • Uniondale
    • Upton
    • Valley Stream
    • Wading River
    • Wainscott
    • Wantagh
    • Water Mill
    • West Babylon
    • West Hempstead
    • West Islip
    • West Sayville
    • Westbury
    • Westhampton
    • Westhampton Beach
    • Williston Park
    • Woodbury
    • Woodmere
    • Wyandanch
    • Yaphank
  • Zip Codes We Serve
    • 00501,  
    • 00544,  
    • 11001,  
    • 11003,  
    • 11010,  
    • 11020,  
    • 11021,  
    • 11022,  
    • 11023,  
    • 11024,  
    • 11030,  
    • 11040,  
    • 11041,  
    • 11042,  
    • 11050,  
    • 11051,  
    • 11052,  
    • 11053,  
    • 11054,  
    • 11055,  
    • 11096,  
    • 11422,  
    • 11501,  
    • 11507,  
    • 11509,  
    • 11510,  
    • 11514,  
    • 11516,  
    • 11518,  
    • 11520,  
    • 11530,  
    • 11531,  
    • 11535,  
    • 11536,  
    • 11542,  
    • 11545,  
    • 11547,  
    • 11548,  
    • 11549,  
    • 11550,  
    • 11551,  
    • 11552,  
    • 11553,  
    • 11554,  
    • 11557,  
    • 11558,  
    • 11559,  
    • 11560,  
    • 11561,  
    • 11563,  
    • 11565,  
    • 11566,  
    • 11568,  
    • 11570,  
    • 11571,  
    • 11572,  
    • 11575,  
    • 11576,  
    • 11577,  
    • 11579,  
    • 11580,  
    • 11581,  
    • 11582,  
    • 11590,  
    • 11592,  
    • 11596,  
    • 11598,  
    • 11599,  
    • 11690,  
    • 11691,  
    • 11701,  
    • 11702,  
    • 11703,  
    • 11704,  
    • 11705,  
    • 11706,  
    • 11707,  
    • 11708,  
    • 11709,  
    • 11710,  
    • 11713,  
    • 11714,  
    • 11715,  
    • 11716,  
    • 11717,  
    • 11718,  
    • 11719,  
    • 11721,  
    • 11722,  
    • 11724,  
    • 11725,  
    • 11726,  
    • 11729,  
    • 11730,  
    • 11731,  
    • 11732,  
    • 11735,  
    • 11736,  
    • 11737,  
    • 11739,  
    • 11740,  
    • 11741,  
    • 11742,  
    • 11743,  
    • 11746,  
    • 11747,  
    • 11749,  
    • 11750,  
    • 11751,  
    • 11752,  
    • 11753,  
    • 11754,  
    • 11756,  
    • 11757,  
    • 11758,  
    • 11762,  
    • 11763,  
    • 11765,  
    • 11768,  
    • 11769,  
    • 11770,  
    • 11771,  
    • 11772,  
    • 11773,  
    • 11774,  
    • 11775,  
    • 11779,  
    • 11782,  
    • 11783,  
    • 11786,  
    • 11788,  
    • 11791,  
    • 11792,  
    • 11793,  
    • 11795,  
    • 11796,  
    • 11797,  
    • 11798,  
    • 11801,  
    • 11802,  
    • 11803,  
    • 11804,  
    • 11815,  
    • 11854,  
    • 11855,  
    • 11901,  
    • 11930,  
    • 11931,  
    • 11932,  
    • 11933,  
    • 11934,  
    • 11935,  
    • 11937,  
    • 11939,  
    • 11940,  
    • 11941,  
    • 11942,  
    • 11944,  
    • 11946,  
    • 11947,  
    • 11948,  
    • 11949,  
    • 11950,  
    • 11951,  
    • 11952,  
    • 11954,  
    • 11955,  
    • 11956,  
    • 11957,  
    • 11958,  
    • 11959,  
    • 11960,  
    • 11961,  
    • 11962,  
    • 11963,  
    • 11964,  
    • 11965,  
    • 11967,  
    • 11968,  
    • 11969,  
    • 11970,  
    • 11971,  
    • 11972,  
    • 11973,  
    • 11975,  
    • 11976,  
    • 11977,  
    • 11978,  
    • 11980
  • Available 24/7 Blue
  • BBB A+ Accredited Business
  • U-Win Satisfaction Guaranteed
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Here for You Around the Clock

Our Comfort Specialists are available to help, no matter the time of day. If you're in need of emergency services, we've got you covered 24/7.

Part of the Authority Brands Family

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