Find a pro in Hempstead
Find a licensed HVAC contractor in Hempstead, NY
No heat right now?
- Call now, 24/7: (631) 557-5869. Revival's AI line takes your details any time and flags the call as urgent.
- If you smell gas, leave the house first, then call 911 or your gas utility from outside.
- Check the thermostat and the breaker or service switch for the burner before you call anyone.
- Call a licensed HVAC contractor now. Revival is not an emergency service, but you can request an urgent call below.
Who licenses HVAC contractors in Hempstead
- Air conditioning and heating systems are on Nassau County Consumer Affairs' list of who must be licensed.
- Nassau's Administrative Code counts central heating and air conditioning systems as home improvement work, which no one may do as a business without a county license.
- Nassau's home fuel oil rules apply to every contract for the maintenance and repair of oil burners and boilers, as well as to fuel oil sales and delivery.
- The Nassau County Department of Health's tank certification does not include contractors who install or remove heating oil tank systems.
State rules and the lookup steps: how to check an HVAC contractor's license.
What the Town of Hempstead requires
- The Town's posted fee sheet, a Town Code printout dated July 31, 2018, lists the permit to install or alter major heating systems at $60 for work estimated up to $1,000, plus $12 for each added $1,000 or part of it.
- The Town's special pickup rules require oil storage tanks to be cleaned and cut in half.
The Town of Hempstead Building Department handles permits (516-538-8500). Our Town of Hempstead permit guide covers how to apply, inspections and certificates.
Homes in Hempstead: what the Census shows
Across the Town of Hempstead, villages included, the median home was built in 1954, and 70% of homes were built before 1960, 22% before 1940. Utility gas heats 62% of occupied homes here, fuel oil 28% and electricity 6%.
What heating and cooling work costs here
Labor is a large part of any price. Long Island heating, air conditioning and refrigeration mechanics and installers earn a median $77,707 a year, from about $56,620 at entry level to $94,796 with experience. (New York State Department of Labor, wages updated to the first quarter of 2026.) Prices come from written estimates; more in the heating and cooling cost guide.
Before you hire in Hempstead
- Ask for the license number the work needs here (see who licenses HVAC contractors above), and check it before you sign.
- Ask who files with the Town of Hempstead Building Department, and who books the inspections.
- Will you do a heat loss or load calculation before you size the new system?
- What happens to the old equipment and to any oil tank, in writing?
More for Hempstead
- All trades in Hempstead
- Town of Hempstead permit guide
- Plumbing in Hempstead
- Water damage repair in Hempstead
- Basement waterproofing in Hempstead
- Junk removal and demolition in Hempstead
- Bulkheads, docks and seawalls in Hempstead
- Solar in Hempstead
- Driveways, pavers and masonry in Hempstead
- Tree service in Hempstead
- Dumpster rental in Hempstead
Heating and cooling across Long Island
- HVAC Contractors on Long Island
- How to check an HVAC contractor's license
- Heating and cooling cost on Long Island
- Heating and cooling in Oyster Bay
- Heating and cooling in Glen Cove
- Heating and cooling in Long Beach
- Heating and cooling in Huntington
- Heating and cooling in Smithtown
- Heating and cooling in Brookhaven
- Heating and cooling in Southampton
- Heating and cooling in Shelter Island
Planning guides
Questions homeowners ask
Does an HVAC contractor need a license in Hempstead, NY?
Nassau County requires a license from its Department of Consumer Affairs for businesses that work on air conditioning and heating systems. Central heating and air conditioning systems fall under Nassau's home improvement license law. Oil burner and boiler service contracts in Nassau are covered by the county's home fuel oil rules. Nassau's Health Department tank certification does not apply to installing or removing heating oil tanks.
What does the Town of Hempstead require for heating and cooling work?
A major heating system permit starts at $60 for the first $1,000 of estimated cost on Hempstead's 2018 fee printout. Before a Town special pickup, an oil storage tank must be cleaned and cut in half.
How do I check an HVAC contractor's license in Nassau County?
Search for a Nassau HVAC company by license number or company name in the Valid Business License Search.
How much does an HVAC contractor cost in Hempstead?
No public agency prices heating and cooling work job by job. The price comes from written estimates after a licensed pro sees the job. For context, Long Island heating, air conditioning and refrigeration mechanics and installers earn a median $77,707 a year, from about $56,620 at entry level to $94,796 with experience.
How many homes in Hempstead heat with oil?
28% of occupied homes in the Town of Hempstead heat with fuel oil, against 62% with utility gas, according to Census Bureau estimates for 2020-2024.
Sources
Every fact on this page comes from these official pages. Rules and fees change, so confirm with the office before you file anything.
- U.S. EPA, Section 608 Technician Certification (read 2026-11-03; page dated March 3, 2026)
- U.S. EPA, Lead Renovation, Repair and Painting Program (read 2026-11-03; page dated June 17, 2026)
- Nassau County Consumer Affairs, Who Must Be Licensed? (read 2026-11-03)
- Nassau County, Administrative Code (PDF) (read 2026-11-03; page dated January 1, 2026)
- Nassau County, home fuel oil rules and regulations (PDF) (read 2026-11-03; page dated adopted 03/08/2011)
- Nassau County Department of Health, tank installer and remover certification (PDF) (read 2026-11-03)
- Town of Hempstead, Fees Building Department (PDF) (read 2026-11-03; page dated July 31, 2018)
- Town of Hempstead, Special Pickup Items (read 2026-11-03)
- U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates: year built, heating fuel, tenure, units and value (Hempstead town) (read 2026-11-03)
- New York State Department of Labor, Occupational Wages (Long Island region, wages updated to the first quarter of 2026) (read 2026-11-03)
Checked 2026-11-03. Facts come only from the official pages listed, read on that date.
Talk the job through before you call anyone
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