Legacy HVAC installs, repairs, and replaces air conditioning and heating systems for homes and businesses in Dallas, Mesquite, Garland, Richardson, Plano, Rowlett, Rockwall, Fate, Terrell, and Greenville. Straight pricing, same-day service, and equipment sized right the first time.
Serving North Texas homeowners and businesses since 2009.
Repairs, tune-ups, and full system installs. From a failed capacitor at 9pm to a new high-efficiency condenser sized for your square footage.
Gas furnace and heat pump repair, safety inspections, and replacements built for the nights North Texas pretends will not happen.
Service areas
and surrounding North Texas communities
North Texas swings from 104 degrees in August to hard freezes in January. Your system has to handle both. Move the dial and find out which half of the year we are fixing for you.
Drag the dial or use your arrow keys
Holding this narrow band through a Texas August and a January freeze is what a properly sized, properly maintained system does. Two tune-ups a year is what keeps it here instead of on the edges.
Book a tune-up
Warm air, short cycling, a frozen line set, or a unit that trips the breaker. We diagnose the actual fault instead of guessing at parts, and most repairs are finished on the first visit.
A replacement system is only as good as the load calculation behind it. We size to the house, not to the old unit, then set the equipment, adjust the airflow, and verify the charge before we leave.
Gas furnaces, heat pumps, and electric strip heat. Ignition faults, cracked heat exchangers, failed defrost boards, and thermostats that lost the plot, diagnosed with a combustion analyzer rather than a hunch.
North Texas winters are mild until they are not. We install furnaces and heat pumps rated for the freeze events that actually hit this region, with the venting and gas sizing done to code the first time.
Most HVAC failures in North Texas trace back to an install that was never commissioned properly. Nobody measured the airflow, nobody weighed in the charge, nobody ran the numbers on the house. We do all three, and we write down what we found.
Static pressure measured, airflow set to spec, refrigerant weighed in, and a printed report of the final numbers left with you.
You approve a number before a wrench moves. No hourly meter running while a technician walks back to the van.
Our technicians are paid the same whether you repair or replace, so the recommendation you get is the one they would give their own family.
Replacement equipment is permitted and inspected in every city we serve. It protects your warranty and your home sale later.
By the numbers
Serving North Texas
Cities covered
Repairs closed in one visit
Manufacturer warranty
Figures reflect Legacy HVAC service records across the North Texas territory.
Legacy HVAC runs a tight territory on purpose. Staying inside the Dallas, Garland, Rockwall, and Hunt County corridor is how we hold same-day response instead of quoting you a four-hour window that turns into tomorrow.
Dallas
AC and heating repair across East Dallas, Lake Highlands, and Pleasant Grove.
HVAC serviceMesquite
Fast response for 1970s and 80s builds with undersized return air.
HVAC serviceGarland
Furnace and condenser replacement across Firewheel and North Garland.
HVAC serviceRichardson
Heat pump and dual-fuel work through Canyon Creek and Prairie Creek.
HVAC servicePlano
Two-stage and variable-speed system installs for larger floor plans.
HVAC serviceRowlett
Lakeside humidity control and coil corrosion repair near Ray Hubbard.
HVAC serviceRockwall
New construction warranty work and full system replacement.
HVAC serviceFate
Builder-grade equipment upgrades across the newer subdivisions.
HVAC serviceTerrell
Rural and in-town service for gas furnaces and straight-cool systems.
HVAC serviceGreenville
Hunt County heating installs and emergency AC repair.
HVAC serviceDo not see your city? If you are inside the Dallas, Rockwall, or Hunt County line, call us anyway. We cover most of the surrounding communities and will tell you straight if you are outside the range.
You should know what happens before you let anyone into your house. Here is the whole process, start to finish.
Tell us what the system is doing. We book a two-hour arrival window, not a whole day, and text you when the technician is en route.
Full inspection with gauges, meters, and a static pressure reading. You get photos of anything we find, whether it needs fixing today or not.
Repair options and replacement options side by side, in writing, with the trade-offs explained. Nothing happens until you say yes.
Work completed, system tested under load, and final readings recorded. Repairs carry a one-year parts and labor guarantee.
Whether it is a repair you have been putting off or a replacement you have been quoted three different ways, we will give you a straight diagnosis and a flat price. Same-day service across all ten cities we cover.
Emergency service available after hours. Licensed and insured in the State of Texas.
