Our Service Area
Proudly serving all of Long Island with expert Navien tankless water heater installation, repair, and maintenance.
Navien Tankless Water Heater Service Across All of Long Island
Based in Wading River, All Island Comfort provides professional Navien tankless water heater installation, repair, and maintenance to homeowners and businesses throughout Nassau County and Suffolk County. Whether you're on the North Shore, South Shore, or anywhere in between, our technicians are available 24/7 for emergency service and scheduled appointments.
Suffolk County spans the eastern two-thirds of Long Island and is home to our Wading River headquarters. We provide fast response times to every town, village, and hamlet across the county's 10 townships.
Town of Brookhaven
- Bellport
- Blue Point
- Centereach
- Coram
- East Patchogue
- Farmingville
- Holbrook
- Holtsville
- Lake Grove
- Mastic
- Mastic Beach
- Medford
- Middle Island
- Miller Place
- Moriches
- Mount Sinai
- Patchogue
- Port Jefferson
- Port Jefferson Station
- Ridge
- Rocky Point
- Selden
- Setauket
- Shirley
- Shoreham
- Sound Beach
- Stony Brook
- Wading River
- Yaphank
Town of Huntington
- Centerport
- Cold Spring Harbor
- Commack
- Dix Hills
- East Northport
- Elwood
- Greenlawn
- Huntington
- Huntington Station
- Melville
- Northport
- South Huntington
- West Hills
Town of Islip
- Bay Shore
- Bayport
- Bohemia
- Brentwood
- Brightwaters
- Central Islip
- East Islip
- Great River
- Islip
- Islip Terrace
- Oakdale
- Ronkonkoma
- Sayville
- West Islip
- West Sayville
Town of Smithtown
- Hauppauge
- Kings Park
- Lake Ronkonkoma
- Nesconset
- Saint James
- Smithtown
Town of Babylon
- Amityville
- Babylon
- Copiague
- Deer Park
- Lindenhurst
- North Amityville
- North Babylon
- West Babylon
- Wyandanch
Town of Riverhead
- Aquebogue
- Calverton
- Jamesport
- Laurel
- Riverhead
- Wading River
Town of Southampton
- Bridgehampton
- East Quogue
- Hampton Bays
- Quogue
- Remsenburg
- Sag Harbor
- Southampton
- Water Mill
- Westhampton
- Westhampton Beach
Town of East Hampton
- Amagansett
- East Hampton
- Montauk
- Sag Harbor
- Springs
- Wainscott
Town of Southold
- Cutchogue
- Greenport
- Mattituck
- New Suffolk
- Orient
- Peconic
- Southold
Shelter Island
- Shelter Island
- Shelter Island Heights
Nassau County covers the western portion of Long Island, from the Queens border to the Suffolk County line. We serve all 3 towns, 2 cities, and over 60 incorporated villages across the county.
Town of Hempstead
- Atlantic Beach
- Baldwin
- Bellmore
- East Meadow
- East Rockaway
- Elmont
- Franklin Square
- Freeport
- Garden City
- Hempstead
- Hewlett
- Island Park
- Lawrence
- Levittown
- Lynbrook
- Malverne
- Merrick
- Oceanside
- Point Lookout
- Rockville Centre
- Roosevelt
- Seaford
- Uniondale
- Valley Stream
- Wantagh
- West Hempstead
- Woodmere
Town of North Hempstead
- Albertson
- Carle Place
- Floral Park
- Great Neck
- Herricks
- Manhasset
- Mineola
- New Hyde Park
- Old Westbury
- Plandome
- Port Washington
- Roslyn
- Roslyn Heights
- Sands Point
- Westbury
- Williston Park
Town of Oyster Bay
- Bayville
- Bethpage
- Brookville
- East Norwich
- Farmingdale
- Glen Head
- Hicksville
- Jericho
- Locust Valley
- Massapequa
- Massapequa Park
- Mill Neck
- Oyster Bay
- Plainview
- Sea Cliff
- Syosset
- Woodbury
Cities
- Glen Cove
- Long Beach
Don't see your town listed?
This is not an exhaustive list. If you live anywhere on Long Island, we can help. Call us at (631) 591-2289 or contact us online to confirm service availability in your area.
Ready to Schedule Service?
Whether you need a new Navien tankless water heater installed or your current unit repaired, we're ready to help. Free estimates, upfront pricing, and 24/7 availability.