The Best HVAC in Port Jefferson, NY

Compare the highest-rated hvac professionals in Port Jefferson, New York. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Port Jefferson Climate Control

4.8
(127 reviews)
Verified

A premier full-service HVAC contractor specializing in high-efficiency system installations and complex heating repairs for Port Jefferson's historic and modern homes. Known for expertise in handling both coastal humidity control and robust winter heating solutions.

450 Main Street, Port Jefferson, NY 11777

Specialties & Features

Energy Efficiency Upgrades
24/7 Emergency Service
High-Efficiency Systems
Historic Home HVAC
Coastal Climate Specialists

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes
#2

Sound Shore Heating & Cooling

4.6
(94 reviews)
Verified

Family-owned HVAC provider with deep roots in the Port Jefferson community. Excels in furnace and boiler services crucial for Northeast winters, while providing comprehensive AC maintenance plans to handle humid summer conditions. Strong focus on preventative maintenance.

1125 Route 112, Port Jefferson, NY 11777

Specialties & Features

Furnace & Boiler Experts
Maintenance Plans
Ductwork Design
Oil-to-Gas Conversions
Local Climate Knowledge

Business Information

Years in Business:22 years
Licensed:Yes
Insured:Yes
#3

Harborview Mechanical Services

4.5
(83 reviews)
Verified

Specializes in HVAC system installations and energy efficiency retrofits for both residential and light commercial properties. Known for working with premium brands like Carrier and Trane, and for implementing zoning systems that address Port Jefferson's varying temperature demands.

25 Barnum Avenue, Port Jefferson, NY 11777

Specialties & Features

System Installation
Energy Efficiency Audits
Zoning Systems
Commercial HVAC
Indoor Air Quality Solutions

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes

Why These Are the Top HVAC Contractors in Port Jefferson

Port Jefferson's HVAC market is characterized by high demand for both robust heating systems for cold, damp winters and efficient cooling for humid summers. The coastal location requires equipment resistant to salt air corrosion. Homeowners increasingly seek energy-efficient upgrades due to high energy costs, with many historic homes requiring specialized ductwork solutions. The market is competitive with approximately 25 active providers, ranging from small operations to established companies with 15+ years of service.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Port Jefferson regulations and climate

Frequently Asked Questions About HVAC in Port Jefferson

Get answers to common questions about hvac services in Port Jefferson, New York.

1What is the typical cost range for replacing a central air conditioning system in a Port Jefferson home?

For a full high-efficiency AC system replacement in Port Jefferson, homeowners can expect to pay between $5,000 and $12,000, with the final cost heavily dependent on home size, system complexity, and equipment brand. Long Island's higher labor and living costs contribute to this range. It's crucial to get a detailed, itemized estimate that includes removal of the old unit, new refrigerant lines if needed, and proper commissioning to handle our humid summers.

2When is the best time of year to schedule HVAC maintenance or replacement in Port Jefferson?

The optimal times are during the shoulder seasons—late spring (April-May) before AC demand peaks and early fall (September-October) before heating season begins. Scheduling during these periods ensures better availability from local contractors and helps you avoid emergency repair premiums during a January cold snap or a July heatwave. This proactive timing is critical for preparing your system for Port Jefferson's distinct four-season climate.

3Are there any local Suffolk County or Port Jefferson regulations I should know about before installing a new furnace or boiler?

Yes, Suffolk County adheres to strict building codes and requires permits for most new HVAC installations, including gas line work. Furthermore, New York State has phased out the installation of non-condensing, low-efficiency fossil fuel systems in new construction; while this primarily affects new homes, it signals a regional shift toward high-efficiency equipment. Always verify your contractor will pull the necessary Town of Brookhaven permits to ensure compliance and safety.

4How do I choose a reliable HVAC contractor in the Port Jefferson area?

Look for a locally established, licensed, and insured contractor with specific experience in Long Island homes. Check for affiliations with organizations like the Air Conditioning Contractors of America (ACCA) and verify they hold the appropriate New York State licenses for the work. Read local reviews on platforms like Nextdoor or Google, and ask for references from homes in nearby neighborhoods like Belle Terre or Port Jefferson Station to gauge their familiarity with local housing styles and challenges.

5My heat pump seems inefficient during the coldest winter weeks. Is this normal for our climate?

Yes, this is a common concern. While modern cold-climate heat pumps are effective, Port Jefferson's winter temperatures can periodically dip into the teens and single digits, which is the lower threshold for standard air-source heat pump efficiency. Many local homeowners opt for a dual-fuel system (hybrid system) that pairs a heat pump with a gas furnace for the coldest days, or ensure their heat pump has a properly sized auxiliary heat strip to maintain comfort and cost-effectiveness through a Long Island winter.