HVAC Services in Horsham, PA

Family-Owned Since 1986. Honest Work, Happy Customers.

Carl j Wendler heating and cooling has been serving homeowners and businesses across the Montgomery County area since 1986, when founder Carl Wendler left larger HVAC companies to build something better: a contractor rooted in the community he grew up in, accountable to neighbors rather than shareholders. 

More than four decades later, we handle everything from heating and cooling to heat pumps, boilers, furnaces, mini-splits, and indoor air quality. Our standard hasn’t changed: the job isn’t done until you’re happy.

Why Horsham Homeowners & Businesses Choose Us

Our Air Conditioner Services

Routine maintenance keeps your cooling system performing through the hottest stretches of summer, and when something goes wrong, a fast repair restores your comfort quickly. Our technicians offer a full range of AC services, including air conditioning repair, tune-ups, and installation. Whether you need an emergency repair or a free estimate for a new system, we’ve got you covered.

We’re also a dedicated installer and service provider for Mitsubishi Electric ductless mini-split systems. The full Mitsubishi Electric line offers advanced zone control and built-in filtration, making them a strong option for additions, spaces without existing ductwork, or any area where zoned comfort matters. We handle installation, maintenance, and repair across the complete lineup.

Furnace Services

When temperatures drop, a reliable furnace isn’t optional. Our team handles furnace repair, maintenance, and new installations to address strange noises, inefficiencies, inconsistent heat output, and other common issues. For new systems, we provide tiered quotes with honest guidance about what fits your home, so you’re never steered toward a more expensive unit than your situation calls for. We walk you through energy use, rebates, and system fit before any decision is made.

Boiler Services

Homes that rely on radiant heat need a boiler that runs without issue. We provide a full range of repair services and routine maintenance to keep your system running smoothly, identifying problems like leaks, mineral buildup, and uneven heating before they escalate. Emergency boiler repairs are available around the clock, because a boiler failure in a Montgomery County winter can’t wait until Monday morning.

Heat Pump Services

Heat pumps handle both heating and cooling, so when something goes wrong, it affects your comfort year-round. If your system is struggling to maintain consistent temperatures or making unusual noises, our NATE-certified technicians can diagnose and resolve the issue accurately. We perform heat pump repairs, tune-ups, and maintenance to restore proper function and keep your system performing across both seasons.

Indoor Air Quality Services

Pollutants and allergens accumulate in HVAC systems over time, degrading airflow and reducing efficiency. Our indoor air quality services include duct services, air purifier installation, and system maintenance to remove contaminants and support a cleaner environment for everyone in your home or building.

Schedule Your HVAC Service in Horsham, PA

From air conditioning repair to heating installations, our technicians are ready to restore comfortable temperatures to your Horsham home or business. Same-day appointments are available, estimates are always free with no obligation, and we serve both residential and commercial customers throughout the area.