Trusted HVAC Experts Serving Smithtown, NY

Serving Smithtown homes with dependable HVAC solutions built on experience and integrity.

Icon depicting a house with flames and a thermometer.

Heating Sytems

Black snowflake on a white background.

Cooling Systems

Water droplet and thermometer over wavy lines.

Hot Water Systems

Air conditioner blowing air.

Indoor Air Quality

Built on Service, Driven by Integrity

We proudly serve Smithtown homeowners and businesses with heating, cooling, water heating, and indoor air quality solutions tailored to Long Island’s climate. Based in East Northport, our team delivers honest guidance, expert craftsmanship, and systems designed to perform for years.

Explore Our Core HVAC Services

We install and service furnaces and heat pumps designed for Northport’s winters. Our solutions focus on efficiency, reliability, and consistent comfort.

Heating Services

Hand holding a wrench next to a heating unit with a flame symbol.

From central AC to ductless systems, we deliver cooling solutions that handle humid Long Island summers with ease.

Cooling Services

Air conditioner icon with snowflake, representing cooling.

 We install and repair tank and tankless water heaters sized for your household’s needs.

Water Heating

Boiler icon with water and steam symbols.

 Improve comfort and health with air purification, filtration, and humidity control solutions.

Indoor Air Quality

Air conditioner blowing cool air.

 Prevent breakdowns and extend system life with scheduled HVAC maintenance.

Maintenance Plans

Icon of fire, fan, and snowflake, representing heating and cooling.

Reliable comfort solutions trusted by Smithtown families.

Trusted by Homeowners Across Long Island

Five black stars.

Northport residents rely on our reputation for honest service and dependable results.

Very professional experience. Install went off smoothly. New system works great.


Martin F.

Professional, quick response to any concerns, project finished in two days and efficient cleanup.


Lucille B.

Great Service - and Big help to get our heating back running


Georg P.

Very professional experience. Install went off smoothly. New system works great.


Martin F.

Professional, quick response to any concerns, project finished in two days and efficient cleanup.


Lucille B.

Why Smithtown Clients Choose Cool Pro Mechanical

Person icon with three stars below it.

Nearly 50 Years of Experience

Trusted HVAC solutions since 1977.

Black checkmark symbol in a circle with a decorative border.

Top Industry Partnerships

Authorized Rheem, Bosch, and Fujitsu contractor.

Hands shaking, a symbol of agreement or partnership.

Customer-First Service

Clear communication and no-pressure recommendations.

Icon with gear, fire, snowflake, fan, and water droplet within a dotted circle, representing HVAC or climate control.

Energy-Efficient Solutions

Heat pumps and systems that qualify for PSEG rebates.

Clipboard with dollar sign, and calculator.

Financing & Fair Pricing

 Free estimates, price matching, and 0% financing.

White van with

Approaching

50

Years in business

Insights & Resources

Helpful tips and seasonal HVAC advice from our experts.

Red and silver plumbing components against a concrete wall, including a pump and pressure gauge.

Nature's Symphony

Breathtaking colors of our planet
Button
White and green air conditioner unit mounted on a brown building wall.

Sands of Time

Stark beauty of desolate dunes
Button
Hand holding air conditioner remote, adjusting temperature. Interior setting, AC unit in background.

Beyond Boundaries

Visual odyssey across continents
Button

Ready to Get Comfortable Year-Round in Smithtown?