Cool Power LLC
Established 1975, NATE-certified and EPA-certified technicians, a Dave Lennox Premier Dealer handling repairs, replacements, and maintenance.
HeatingACFurnacesBoilers
HVAC Companies in Smithtown, NY
Looking for a hvac company in Smithtown? Below are local hvac companies serving Smithtown, St. James, Kings Park, Nesconset, and the surrounding Suffolk County area. Every business here works right in the neighborhood.
4 local pros listed
Ratings shown come from each business's Google Business Profile, not from SmithtownHomePros.
Hart Home Comfort
See reviews on Google ↗· 📍 Smithtown, NY
Full-service Smithtown heating and cooling, servicing most major brands and specializing in ductless mini-split systems for additions and older homes.
AC repairHeating repairDuctless mini-splitInstallation
Soundview Heating and Air Conditioning
Family-owned and operated, serving Suffolk County since 2000 with design-build installs, maintenance, and 24/7 emergency repair.
InstallationMaintenanceHeat pumpsEmergency repair
Weber & Grahn Air Conditioning and Heating
Local Smithtown HVAC company serving the area since 1968, working with multiple generations of the same families for heating, cooling, and refrigeration.
AC repairHeatingInstallationRefrigeration
Pros on the map
Map markers show each business's primary town, not an exact street address.
Hiring a hvac company in Smithtown: what to know
Hiring local matters on the North Shore. A Smithtown-based hvac company knows the area's older housing stock, the local permit process, and the conditions specific to Long Island homes. Every hvac company listed here works in and around Smithtown, so you are reaching someone who actually services your neighborhood.
Check licensing and insurance
Before hiring any hvac company, confirm they hold the appropriate Suffolk County license for their trade and carry liability insurance. It is reasonable to ask for both before work begins. For larger projects, also confirm whether the work requires a Town of Smithtown permit, which a licensed contractor typically handles as part of the job.
Confirm permit requirements for your specific project with the Town of Smithtown Building Department before major work begins. A reputable local hvac company handles permitting routinely.
Frequently asked questions
Local pros tend to know the area's older homes, the conditions specific to the North Shore, and the town permit process firsthand. They are also accountable to their reputation in a small community. Every hvac company in this directory works in and around Smithtown.
Other home services in Smithtown
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