Heating & Air Conditioning Services in Leander, TX

Your Local HVAC Company Since 1977

Texas weather can be unpredictable—but your home comfort shouldn’t be. McCullough Heating & Air Conditioning proudly provides reliable HVAC services to homeowners in Leander, TX, keeping homes cool, cozy, and energy-efficient all year long.

As one of Central Texas’s most trusted HVAC teams, we bring decades of experience, honest service, and high-quality workmanship to every job. Whether you need fast AC repair, new system installation, or energy-saving upgrades, McCullough is the name Leander residents count on for comfort done right.

Air Conditioning Services in Leander, TX

AC Repair

When your air conditioner stops working during a Texas summer, you need quick help from experts who care. McCullough offers prompt and professional AC repair in Leander, diagnosing and fixing all makes and models. We’ll restore your cooling fast—with upfront pricing and no surprise add-ons.

AC Installation & Replacement

If your old cooling system can’t keep up with the heat, it might be time for an upgrade. We provide energy-efficient AC installation and replacement services, ensuring your new system is properly sized for your home. Enjoy better comfort, lower bills, and dependable performance from your new unit.

AC Maintenance & Tune-Ups

Regular maintenance helps your AC perform at its best. Our detailed tune-ups include coil cleaning, refrigerant checks, and electrical inspections to prevent breakdowns and extend your system’s lifespan. Stay cool and save energy with McCullough’s trusted maintenance service.

Heating Services in Leander, TX

Heater Installation & Replacement

When temperatures drop, you need a reliable heating system to stay comfortable. McCullough installs and replaces high-efficiency furnaces, heat pumps, and hybrid systems across Leander. We’ll help you find the perfect heating solution for your home’s needs and budget.

Heater Repair & Maintenance

If your heater isn’t working properly, our technicians can quickly identify the issue and restore your comfort. We offer thorough repairs and seasonal maintenance to keep your heating system running safely and efficiently, even on the coldest winter nights.

Furnaces & Heat Pumps

Whether your home uses a traditional gas furnace or a modern heat pump, McCullough has the experience to install, service, and maintain both. We’ll make sure your system delivers dependable warmth and efficiency all season long.

Home Energy Solutions in Leander, TX

Attic Insulation

Make your home more comfortable and efficient with professional attic insulation. Our insulation services help reduce energy waste, lower utility bills, and maintain consistent indoor temperatures year-round—so your HVAC system doesn’t have to work overtime.

Home Energy Audits

Not sure where your home is losing energy? Our comprehensive energy audits pinpoint areas like air leaks, duct inefficiencies, and insulation gaps. We’ll provide an easy-to-understand action plan to boost comfort and energy performance throughout your Leander home.

Solar Shading

Leander’s bright sunshine can make your home heat up quickly. Our solar shading solutions reduce unwanted heat gain while preserving natural light, helping you stay cooler and more efficient all summer long.

Why Leander Residents Choose McCullough Heating & Air Conditioning

At McCullough Heating & Air Conditioning, we’re proud to help Leander homeowners enjoy year-round comfort with trusted HVAC and energy services. From quick repairs to full system upgrades, our team delivers expert care, reliable results, and honest communication every time.

Fast, Friendly Service with a Local Touch

We show up on time, communicate clearly, and treat your home like it’s our own—because we live and work in the same neighborhoods we serve. Our customers count on us for courteous service and long-lasting results.

Experienced Technicians with a Customer-First Focus

Our licensed professionals bring decades of experience and ongoing training to every job. We listen, explain, and deliver solutions that make sense for your comfort, budget, and goals.

Transparent Estimates and No Surprise Pricing

You’ll always know the cost upfront with no hidden fees or unnecessary upsells. Our honest recommendations are built around what’s best for your home—not our bottom line.

Community Commitment Beyond HVAC

We proudly support the Leander Educational Excellence Foundation (LEEF) and other Central Texas initiatives that uplift students, empower educators, and strengthen families. Giving back is part of our mission—through mentorships, sponsorships, and donations, we invest in the well-being of the communities we serve. Our team doesn’t just work in Leander—we live here, raise families here, and believe in building a better future together.

Proudly Serving Leander and the Greater Central Texas Community

McCullough Heating & Air Conditioning proudly provides HVAC services throughout Leander and neighboring areas, including Liberty Hill, Cedar Park, and Brushy Creek. Whether you’re located near Devine Lake Park or in a growing development by Crystal Falls, our team brings personalized comfort solutions to your door.

With deep knowledge of local housing styles and climate demands, we offer reliable, energy-efficient results that match the rhythm of Central Texas living.