Trusted HVAC Services in Mercer County, NJ

Reliable Heating & Cooling from Your Local Comfort Experts

Living in Mercer County, NJ means dealing with everything from sweltering summer heat to icy winter mornings. That’s why homeowners throughout the area turn to Princeton Air for dependable, energy-efficient HVAC services in Mercer County. With decades of experience, our professional team delivers personalized solutions—whether you need new HVAC installation, fast HVAC repair, or a proactive maintenance plan to keep your system running strong.

Ready to talk to a home services specialist?

Complete HVAC Services for Mercer County Homes

At Princeton Air, we understand that each home has its own comfort challenges. That’s why we offer a full range of Mercer County HVAC services, tailored to your home’s design, energy goals, and lifestyle. Our services include:

Our Service Area

HVAC Installation

Custom HVAC installation to ensure perfect system fit and performance

HVAC Installation

HVAC Replacement

HVAC replacement when systems are beyond repair or inefficient

HVAC Replacement

HVAC Maintenance Plans

Preventive HVAC maintenance plans to extend system life and reduce breakdowns

HVAC Maintenance

Emergency HVAC Services

24/7 emergency HVAC services when comfort just can’t wait

Emergency HVAC

Ductless HVAC Services

Advanced ductless HVAC services for zoned heating and cooling flexibility

Ductless HVAC

HVAC Repair

Prompt HVAC repair to get your system back up and running quickly

HVAC Repair

All services are performed by licensed, friendly professionals who prioritize safety, comfort, and energy efficiency.

(609) 799-3434

HVAC Specials & Discounts

Take advantage of our current offers & coupons!

All Offers

$99 Special

Precision Heating System Tune-Up Service

$99 Special – Precision Heating System Tune-Up Service

Valid on new appointments for a limited time. Cannot be combined with other discounts. Not valid towards diagnostic/trip fees. Call for full details.
Up to $2000 in Savings

On an HVAC System

Up to $2000 in Savings – On an HVAC System

FREE Smart Thermostat. 0% down and FREE financing for 7 years. Valid on new appointments for a limited time. Cannot be combined with other discounts. Not valid towards diagnostic/trip fees. Call for full details.
$500 Off

Any Heat Pump Installation
$500 Off – Any Heat Pump Installation

For a limited time only, save $500 instantly on any new heat pump installation—ducted heat pumps and mini-splits included! Contact us today to save. Valid on new appointments for a limited time. Cannot be combined with other discounts. Not valid towards diagnostic/trip fees.

Wouldn’t it be nice to be able to save instantly on the cost of installing a new heat pump for your central New Jersey or southeastern Pennsylvania home?

Well you can with Princeton Air’s latest special limited time offer: Right now, you can receive $500 off heat pump installation, only with our team of local HVAC and energy efficiency experts!

$500 Instant Rebate

Offer is Good on Any Brand and Model We Install, including Trane, Lennox, and Mitsubishi Electric!

Ducted Heat Pumps AND Ductless Mini-Splits are Eligible

Guaranteed INSTANT Savings on Heat Pump Installation!

Federal tax credits and utility rebates can be a great way to reduce the cost of a heat pump, but the savings usually aren’t available right away. For tax credits, any credit simply reduces the amount of federal taxes you owe when you go to file your return for the year that your new system was installed. And rebates often require an application, paying up front, and then waiting for your rebate to be processed and mailed back to you after your new system is already installed and paid for.

But you can take advantage of Princeton Air’s $500 heat pump installation special and the amount will be taken directly off your bill! Plus, this special is the cherry on top—you’ll still be additionally eligible for the $2,000 tax credit for qualifying systems and any available future rebate savings.

Get Pre-Approved Financing

Financing Options

The Home Comfort Club

Service plan starting at

$49.99_/mo

All Service Plans

Local Knowledge, Reliable Results

From the historic streets of Princeton and the suburban neighborhoods of West Windsor to the city life in Trenton, Mercer County offers a diverse range of homes and climates. Princeton Air has worked with residents across the county, bringing specialized insight into local construction, insulation styles, and zoning codes. We know how important reliable heating and cooling is—especially with the region’s cold winters and humid summers. Whether your home is near Mercer County Park, Rider University, or the Delaware River, we’re your local HVAC experts.

Why Mercer County Homeowners Choose Princeton Air

Over 45 years of experience serving New Jersey homeowners
Locally trusted, with fast response times and honest service
Energy-efficient HVAC solutions that help reduce your monthly utility bills
Comprehensive services under one roof: install, repair, maintain
Friendly, knowledgeable technicians who live and work in the communities we serve

Schedule HVAC Service in Mercer County Today

Don’t wait for your system to fail. Contact us today at (609) 799-3434 to schedule your HVAC service in Mercer County, NJ. We’ll help you find the right solution to keep your home comfortable, efficient, and ready for every season.