H & H Heating and Air LLC
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Claim This BusinessAbout H & H Heating and Air LLC
H & H Heating and Air LLC, based in McKinney, has operated as a family-owned HVAC contractor since 2003, holding Texas license TACLB32980E. The company holds an A+ rating with the Dallas BBB and earns 4.4 stars across 19 Google reviews. Technicians are fully licensed, insured, and certified to install and service Comfortmaker equipment alongside all other major brands. The company maintains a 24/7 on-call schedule for emergency service and provides free estimates before any work begins, serving McKinney, Allen, Caddo Mills, and the broader Collin County region.
The contractors distinguish themselves through two commitments visible on their site: factory-backed extended warranties on all affiliated products and services, plus transparent financing options for major installations. A free second opinion stands out in customer reviews, where technician Donnie saved one homeowner from an unnecessary full-unit replacement by identifying a simple fix instead. Heat pump installs, new ductwork runs, and gas furnace diagnostics represent their most detailed service pages, with each listing its own learn-more anchor on the site navigation.
What Customers Say
15 named reviewers praise Honesty as the dominant theme: Donnie declined to recommend a replacement when a $40 part solved the problem, Don Holt texted ahead and arrived on schedule, and Don kept one homeowner's original unit running for 12 years. 4 reviewers specifically called out same-day or after-hours responsiveness when their system failed during a Texas heat wave or overnight outage.
Working Hours
| 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 |
Services
Heat Pump Installation & Repair
Heat pump repair and replacement are listed separately on the services site, covering both heating and cooling modes in a single outdoor unit.
Gas Furnace Repair
Diagnostic and repair services for gas heating systems, with a dedicated service page and free estimate option listed.
New Ductwork Installation
Custom ductwork runs and modifications for new construction or system upgrades, with a dedicated learn-more page on the site.
Residential HVAC Service
Full residential heating and air conditioning repair, installation, replacement, and maintenance with a separate site page.
Coil Cleaning
Indoor and outdoor coil cleaning services to restore system efficiency and airflow, listed as a component-level service.
Attic Fan & Ventilation Service
Attic ventilation assessment and fan installation to improve airflow and reduce cooling costs in Texas summers.