Do you offer HVAC repair services specifically in Westlake, TX?

Yes. McCullough Heating & Air Conditioning provides full HVAC repair, maintenance, and installation services throughout Westlake and the surrounding West Austin areas. Our service area includes: West Lake Hills, Rollingwood, Davenport Ranch, Lost Creek, Barton Creek, Camelot, Seven Oaks, Westview, West Rim, Las Lomas, Stratford Hills, Countryside, and Shepherd Mountain.

How quickly can you respond to HVAC repair calls?

We prioritize fast response times, especially for urgent heating or cooling issues. Emergency service is available when you need immediate assistance to restore comfort to your Westlake home.

What HVAC systems do you service?

We repair and maintain all major HVAC brands, including air conditioners, furnaces, heat pumps, ductless systems, and smart thermostats.

How often should my HVAC system be serviced?

We recommend professional HVAC maintenance at least once a year, ideally before summer and winter, to ensure reliable performance and prevent breakdowns during extreme Texas temperatures.

Do you offer energy-efficient HVAC upgrades?

Yes. We install high-efficiency HVAC systems and zoning solutions designed to reduce energy costs while improving comfort—ideal for Westlake homes seeking modern climate control.

Do you offer HVAC maintenance services in Westlake?

Yes. McCullough Heating & Air Conditioning provides professional HVAC maintenance services for Westlake homeowners, including seasonal tune-ups and preventative care.

Are HVAC maintenance plans worth it?

Yes. Maintenance plans help reduce repair costs, improve system efficiency, and ensure priority service during high-demand periods, providing peace of mind for Westlake residents.

HVAC Repair, Replacement and Heating & Cooling Services in Westlake, TX

When your HVAC system breaks down during a scorching summer day or a chilly Central Texas morning, you need fast, dependable service from a local company that understands Westlake homes and terrain. McCullough Heating & Air Conditioning provides professional HVAC repair, maintenance, and installation services in Westlake, TX, tailored to the unique needs of hillside properties, larger floor plans, and high-end systems.

Serving Westlake Neighborhoods for Over 40 Years.

McCullough Heating & Air Conditioning proudly serves homeowners throughout Westlake and the surrounding communities, providing reliable HVAC and indoor air quality solutions tailored to larger homes, custom layouts, and high-performance systems.

Our service area includes: West Lake Hills, Rollingwood, Davenport Ranch, Lost Creek, Barton Creek, Camelot, Seven Oaks, Westview, West Rim, Las Lomas, Stratford Hills, Countryside, and Shepherd Mountain.

No matter the neighborhood, our team brings the same attention to detail, local expertise, and commitment to comfort that Westlake homeowners expect.

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HVAC Services Offered in Westlake

AC Repair
HVAC Replacement & Installation
Mini Split Installation
Heating & Cooling Maintenance Packages
Heating & Cooling Tune-ups
Indoor Air Quality
Home Energy

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Community Commitment in Westlake

Proudly Supporting the Westlake Community

At McCullough Heating & Air Conditioning, we believe being a trusted HVAC provider means more than delivering great service—it means giving back. Westlake isn’t just a service area for us; it’s a community we actively support.

McCullough proudly sponsors and partners with local schools, community events, and neighborhood initiatives throughout Westlake and West Austin. Our commitment includes:

Supporting local schools and youth programs. We support Eanes Educational Foundation (EEF), donating $250,000 in the success of educators and students since 2017
Sponsoring community events and neighborhood initiatives
Partnering with organizations that promote health, safety, and family well-being
Giving back through charitable and service-based efforts

When you choose McCullough, you’re supporting a company that believes in showing up for the community—not just servicing it.

Trusted Local Heating & Cooling Repair in Westlake

Westlake residents experience long, demanding summers and unpredictable winter cold snaps—conditions that require HVAC systems to perform at their best. Whether your air conditioner can’t keep up with the heat or your furnace is struggling to warm your home evenly, McCullough delivers expert service with a local, personalized approach.

Common HVAC Repairs We Handle

We service and repair all major makes and models, including:

Air Conditioner Repair & Diagnostics
Solutions for weak cooling, refrigerant leaks, compressor issues, frozen coils, and system failures.
Furnace & Heater Repair
Reliable repairs for ignition problems, uneven heating, short cycling, and complete heating system breakdowns.
Heat Pump Service & Repair
Comprehensive support for heat pumps, ensuring efficient heating and cooling throughout the year.
Thermostat Repair or Replacement
Improved accuracy, performance, and smart thermostat upgrades for better control and efficiency.

Because many Westlake homes feature multiple levels, large windows, high ceilings, and radiant heat exposure, we tailor every repair and solution to your home’s specific layout and comfort needs.

Signs You May Need Emergency HVAC Repair

Small HVAC issues can quickly turn into expensive breakdowns if ignored. Contact us promptly if you notice:

✔ Unusual noises like buzzing, grinding, or rattling
✔ Weak airflow or uneven temperatures between rooms
✔ Sudden spikes in energy bills
✔ Burning, musty, or unusual odors
✔ Short-cycling or frequent on/off operation
✔ An HVAC system that won’t start or stay running

Westlake’s hilltop terrain and shaded microclimates can intensify performance issues—our experienced technicians know exactly what to look for.

Energy-Smart HVAC Replacement & Installation

Sometimes repairs aren’t enough, especially for older or inefficient systems. McCullough offers expert guidance and installation for energy-efficient HVAC upgrades.

Replacement & Installation Services

High-Efficiency Air Conditioners — Improved cooling with lower utility costs
Advanced Furnaces & Heat Pump Systems — Reliable comfort during winter cold fronts
Ductless Mini-Splits & Zoned Systems — Ideal for multi-level homes and temperature control

Our team helps you select the right system based on your home’s size, layout, comfort goals, and budget, including guidance on rebates, incentives, and financing options.

Indoor Air Quality Solutions for Westlake Homes

Hill country living often brings increased dust, pollen, and allergens indoors—especially in homes with open layouts and large windows. McCullough provides whole-home indoor air quality solutions, including:

Whole-home humidifiers
Advanced air filtration systems
UV air purification
Duct cleaning and duct sealing

These solutions help improve comfort, protect respiratory health, and maintain a cleaner indoor environment year-round.

HVAC Maintenance Services in Westlake, TX

Regular HVAC maintenance is essential for Westlake homeowners who want reliable comfort, lower energy costs, and fewer unexpected breakdowns. With demanding summers, sudden winter cold snaps, and hillside home layouts, routine maintenance helps ensure your system performs efficiently year-round.

McCullough Heating & Air Conditioning offers professional HVAC maintenance services in Westlake, TX, designed to protect your investment and keep your system running at peak performance.

What’s Included in Our HVAC Maintenance Service

Our comprehensive maintenance visits include:

Full system inspection and performance testing
Cleaning of coils, burners, and critical components
Electrical and safety checks
Airflow and thermostat calibration
Filter replacement recommendations
Identification of potential issues before they become costly repairs

Regular HVAC maintenance reduces strain on your system and helps avoid emergency repair calls during extreme weather.

Benefits of Routine HVAC Maintenance in Westlake

Seasonal maintenance offers long-term benefits, including:

✔ Improved system efficiency and lower utility bills
✔ Extended equipment lifespan
✔ Fewer unexpected breakdowns
✔ More consistent indoor temperatures
✔ Improved indoor air quality

For best results, we recommend scheduling HVAC maintenance before summer and before winter to prepare for peak heating and cooling demand.

Maintenance Plans for Westlake Homeowners

To make system care easy and affordable, McCullough offers HVAC maintenance plans that include:

Priority scheduling during peak seasons
Discounted repair services
Routine system tune-ups
Ongoing performance monitoring

Maintenance plans provide peace of mind and help protect your comfort year after year.

Get Started Today With a McCullough Maintenance Plan

Home Energy Solutions in West Lake Hills, TX

West Lake Hills homes often feature high ceilings, expansive windows, and multi-level layouts that contribute to energy loss and higher cooling demands. Our home energy services include attic insulation, energy audits, and solar shading to help stabilize indoor comfort while reducing utility costs. Austin Energy offers free energy audits to ensure your home is running as efficiently as possible.

Benefits of Home Energy Improvements

Energy upgrades make a substantial impact on comfort in hillside homes. Benefits include:

Lower monthly energy bills: Reducing heat gain and air leakage lessens strain on your HVAC system.
More consistent temperature control: Improvements help manage challenging areas like upper floors and sun-facing rooms.
Extended HVAC system life: Systems run more efficiently and avoid unnecessary wear.
Improved humidity control: Better insulation and sealing help regulate airflow and indoor moisture.
Enhanced home value and comfort: Energy-efficient upgrades benefit long-term homeowners and buyers.

Schedule Your FREE Home Energy Audit Today

Why Westlake Chooses McCullough Heating & Air Conditioning

Since 1977, McCullough Heating & Air Conditioning has provided honest, reliable HVAC services across Greater Austin, including Westlake. Homeowners trust us for: