Is this your business?
Claim your listing to verify your info and earn a verified badge.
Claim This BusinessMcCullough Heating & Air Conditioning has kept Georgetown comfortable since 1977, building a reputation rooted in Central Texas through five decades of service. The company maintains a perfect 4.9-star rating across 306 verified Google reviews, a testament to the consistency of their craftsmanship and customer care. Operating from their Austin-area hub, McCullough serves Georgetown, Round Rock, Westlake, and surrounding communities with round-the-clock availability. Their service fleet responds to every call, whether it is a routine tune-up or a weekend breakdown.
What distinguishes McCullough from otherarea contractors is their commitment to transparent diagnostics and homeowner education. Their technicians routinely save customers thousands by identifying repairable issues rather than recommending full system replacements, and multiple reviewers note that honesty about warranty coverage became the deciding factor in their service decision. The company backs every installation with a 100% satisfaction guarantee and offers 0% financing for 72 months, alongside manufacturer rebates that can reach $2,650 on qualifying equipment replacements. This financial flexibility, combined with their in-house expertise on heat pumps, mini-splits, and energy audits, positions McCullough as a full-scope residential climate solutions provider.
Customer stories from the past year illustrate why McCullough draws consistent praise. Tech Matt arrived at one homeowners residence within hours during a sweltering week, diagnosing a heat pump issue that three previous contractors had misidentified and prescribing a $200 part rather than a $6,000 system. Reviewer Gary B. called the team back to clean up another companys botched attic installation, and McCullough returned twice at no charge until the job met their standards. For Glenda McMillans full HVAC replacement, technicians Jensen and Mike guided her through every feature of her new system, returning post-install to fine-tune settings and optimize efficiency. These named interactions reflect a culture where specific technician skill determines service outcomes.
Eight recent reviewers all award 5 stars, with Matthew cited four times for honest assessments that prevented unnecessary system purchases, Jensen twice for installation expertise, and Mike once for replacement support. Five reviewers explicitly mention saving money through accurate diagnostics rather than upsold replacements.
| Sunday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| ThursdayToday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Diagnostics, tune-ups, and component-level repairs for all residential cooling systems, with same-day availability during heat emergencies.
Full system installs including heat pumps, mini-splits, and high-efficiency units backed by the 100% satisfaction guarantee.
Furnace repair, installation, and maintenance ensuring reliable winter warmth across Georgetown's occasional cold snaps.
Specialized repair and installation of heat pump systems, with technicians experienced in variable-speed operation and dual-season performance.
Comprehensive assessments identifying energy waste, attic insulation gaps, and HVAC optimization opportunities to lower monthly bills.
Installation of connected thermostats and smart home integration for remote system management and efficiency tracking.
air filtration, purification, and ventilation improvements to address dust, allergens, and humidity control in Central Texas homes.