Welcome to Active Air HVAC Home Comfort Consulting

Welcome to Active Air, your trusted HVAC contractor in Trumbull, CT and Fairfield County. We provide professional heating and air conditioning services, including HVAC maintenance, furnace and boiler repair and replacement, oil heating, heat pumps, air conditioning, ductless mini-splits, water heaters, system installations, and HVAC repairs.

Whether you need heating or AC service, routine maintenance, a repair, or a complete HVAC replacement, Active Air delivers dependable home comfort solutions with quality workmanship and personalized service.

View Our HVAC Services 

## Schedule a Consultation
* **Direct Access:** Speak directly with owner Andrew DeJesus for custom HVAC design, system evaluations, and expert technical advice.
* **Free Estimates:** Zero-cost, no-obligation system assessments for residential and co
HVAC Systems From Trusted Brands
Active Air LLC proudly works with Carrier, Bryant, Trane, Mitsubishi, Daikin, Goodman, Bosch, and Fujitsu. We install and service everything from conventional HVAC systems and heat pumps to ductless mini-splits, multi

NEW INSTALLATIONS

Need AC replacement in Trumbull, CT? Active Air LLC provides fast, professional air‑conditioning installation, system upgrades, and energy‑efficient solutions. 5‑star local HVAC experts. Call (203) 945‑6287.
Active Air LLC delivers expert HVAC repair services across Trumbull and Fairfield County. We specialize in AC repair, gas furnace repair, boiler repair (gas & oil), mini‑split and heat pump diagnostics, and full‑system restoration. Whether your syste

SERVICE REPAIR

We install and replace Bosch 20 SEER cold‑climate heat pumps — high‑efficiency, ultra‑quiet, built for CT winters

HEAT PUMPS

Bryant outdoor air conditioning or heating unit with gray metal cabinet and red Bryant logo.

GAS FURNACE

A man wearing a black cap, black shirt, and yellow shorts is cleaning an outdoor air conditioning unit with a hose. The scene is outside a house with gray siding and green trees in the background.

MAINTENANCE‍ ‍

A split air conditioning unit with indoor and outdoor components. The indoor unit is white with a remote control beside it, and the outdoor unit is also white, featuring a fan and Mitsubishi Electric logo.

MINI SPLIT SYSTEM

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HP HOT WATER TANK

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OIL BOILER REPLACEMENT

Your Local HVAC Experts. Your Home. Your Comfort.

Why Trust Active Air for Your HVAC Needs?

When it comes to your home’s heating and cooling, you deserve more than a quick fix or a sales pitch. You deserve an HVAC company you can trust.

Active Air LLC is a family-owned HVAC company proudly serving homeowners throughout Trumbull, Fairfield, Monroe, Shelton, Bridgeport, and communities across Fairfield County, Connecticut. We specialize in professional heating and cooling solutions, including heat pumps, air conditioning, heating systems, ductless mini-splits, HVAC replacements, installations, maintenance, and repairs.

Our approach is simple: listen to your needs, evaluate your home, explain your options, and recommend the solution that makes the most sense for you and your budget. We believe homeowners should understand what they are paying for and why a particular system is being recommended.

From routine HVAC maintenance and AC repair to complete cold-climate heat pump installations and high-efficiency heating and cooling system replacements, our goal is to provide dependable comfort, quality workmanship, and long-term value.

We don’t believe in cutting corners or recommending equipment simply because it costs more. We believe in doing the job right, standing behind our work, and treating every customer’s home like it were our own.

Whether you need HVAC repair in Trumbull, a new heat pump in Monroe, AC service in Fairfield, or a complete heating and cooling system replacement anywhere in Fairfield County, Active Air LLC is here to help.

Man in business suit sitting at his desk in an office with a logo that says 'Active Air' on the wall behind him.

A Message From the Owner

“I started Active Air with a simple belief: homeowners deserve honest HVAC advice, quality workmanship, and a company that genuinely cares about the people we serve. Every system we install and every home we work in represents our name and our reputation. That’s why we take pride in doing things the right way, not just the easy way.

**Thank you for trusting Active Air LLC with your home and your comfort. We truly appreciate the opportunity to serve our community.”

— Andrew DeJesus, Owner
Active Air LLC

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“Andrew and his crew did a great job installing our central air system. They were able to give us exactly what we wanted for a great price. We had Andrew pull permits for the job and he did it in a timely fashion and handled all the scheduling with the town. Andrew also gave us a great price. Would definitely recommend Active Air for all your heating/cooling projects big or small.”

— Hagen George
Five gold 3D stars aligned in a row on a transparent background

“Highly recommend Active Air! Andrew responded right away to my inquiry and they came out quickly to fix the problem.
They were very professional and explained everything that was going on and what needed to be done. It’s hard to find companies that are both knowledgeable and genuinely helpful, but they exceeded expectations. Highly recommend this company for fast, honest, and reliable service! Will definitely use them again, if needed!”

— Jodi
Five gold stars in a row, with the middle star being the largest, representing a five-star rating.

“Our new HVAC system from Active Air was an excellent investment, thanks to their exceptional service. Andrew's expertise truly stands out; he's knowledgeable, meticulous, and ensures superior quality. Exactly one year after installation, he proactively contacted us for our annual maintenance, just as promised. He didn't just show up; he sent a detailed plan beforehand and then provided a thorough explanation during the appointment. Active Air earns my highest recommendation for their trustworthiness and commitment to customer satisfaction.”

— Don Dest 
Near me Air Conditioner repair, HVAC, AC Replacement, Fairfield CT, Shelton CT

Upgrade Your Comfort & Savings with Expert HVAC Replacement Services.

A technician working on an outdoor air conditioning unit, holding a smartphone in a backyard with green plants and a gray house siding.
Furnace, boiler, Gas, Oil, Repair, Near me, HVAC, Heating, Carrier, Trane
HVAC Repair, Boiler Repair, Furnace Repair, Ductless, HVAC, Heating, Cooling, Oil, Gas, Propane,

CONTACT US

For any questions about your HVAC system, the owner is available directly by email for a personal response. Your comfort is our priority, and we’re here to help with anything related to heating, cooling, repairs, or new installations. Reach out anytime, we’re ready when you are.