Calls for AC repair in Richardson, TX, tend to come from two very different kinds of buildings: the brick ranch houses that filled the old cotton fields after World War II, and the newer apartments, townhomes and offices that have gone up along Central Expressway since. The trouble a system gets into depends a lot on which one you live in. Here is what is particular to Richardson, and what to expect from the company you are put through to.
Dallas Air & Heating is not an HVAC contractor. It is a free phone line. When you ring (469) 649-7066, an automated assistant first asks if you need cooling or heating help, then records who you are, where you are and the symptoms. Next, your call is handed to an independent HVAC business in the Richardson area. It figures out what is wrong, names a price, and you settle the bill with it.
Richardson: a city built in one fast burst
The Texas State Historical Association puts Richardson's population at 1,289 in 1950 and 16,810 in 1960, as new subdivisions and shopping centers replaced cotton fields. Collins Radio and Texas Instruments brought engineers and their families, and Central Expressway reached the city in 1954. By 1970 the count was 48,582, and by 1980 it was 72,496. Then growth almost stopped: the 1990 census found 74,840 people, barely more than a decade earlier.
That pause matters for air conditioning. A large share of Richardson's single-family houses were built in roughly a twenty-year window, which means many of them have already been through several outdoor units, and some still run on ductwork from the original build. Newer growth came later and looked different: the Telecom Corridor offices of the 1980s, the University of Texas at Dallas campus, and denser housing near CityLine. The 2020 census counted 119,469 residents.
What tends to go wrong in each kind of Richardson home
A starting point for a conversation with the technician, not a diagnosis. The data plate on the outdoor unit shows the year it was made and the refrigerant it uses.
| Home | Common issues | Worth asking |
|---|---|---|
| 1950s to 1970s ranch | Original or patched attic ducts, rooms at the far end of the house that never cool, older indoor coils paired with newer outdoor units. | Were the indoor coil and outdoor unit replaced together? Has anyone measured airflow at the registers? |
| Any unit still on R-22 | U.S. production and import of R-22 ended in 2020, so recharging an old system means using limited reclaimed supply. | What would a leak repair and recharge cost compared with replacing the system? |
| 1980s to 2000s homes | Many on a first or second replacement system. Capacitors, blower motors and condensate drains wear out. | Can I see the repair price and a replacement price side by side? |
| Apartments and townhomes | Closet air handlers, shared walls and condensate lines that run a long way to a drain. | Who owns the equipment: me, the landlord or the association? |
Power, gas and who to call in Richardson
Richardson is inside Oncor's delivery area and the state's retail electric market. That means Oncor owns the lines and the meter and restores power after a storm, while the retail provider you chose handles your plan and bill. Neither one repairs a heat pump or a condenser. Atmos Energy supplies the city's natural gas through its Mid-Tex Division. If the whole house loses power, that is an outage call. If the lights are fine and only the air conditioning has quit, that is an HVAC call.
Before you pick up the phone, a few checks are safe for anyone to do:
- Thermostat. Confirm it is set to Cool, set below the room temperature, and has fresh batteries if it uses them.
- One breaker reset. Flip a tripped AC breaker back on a single time. Should it trip again, leave it off and let a technician find out why.
- Air filter. A clogged filter can freeze the indoor coil. Swap it if it is gray and matted.
- Outdoor unit. Clear leaves, grass clippings and anything stacked against the sides.
- Drain and float switch. If the air handler sits in a closet or attic, glance at its overflow pan. Standing water there, or a safety switch that has shut things off, is worth reporting.
In many older Richardson homes the indoor half of the system lives in the attic, like the one above, where summer heat bakes the equipment and the ducts. Flexible duct can sag, kink or pull loose at a joint over the decades, and the house simply feels like the AC is weak. That is one reason a careful technician looks above the ceiling before suggesting a bigger unit.
Storm damage and a Richardson outdoor unit
On October 20, 2019, an EF3 tornado crossed north Dallas with peak winds the National Weather Service estimated at 140 mph. Its damage survey says the storm weakened and turned north near Richardson Square, then tracked to the Huffhines Park area before it dissipated as it crossed Jupiter Road. The mayor signed a disaster declaration afterward, as hundreds of properties in the city had been damaged.
Storms like that leave outdoor units dented, packed with debris or knocked off their pads, and hail can flatten the thin aluminum fins on a condenser coil. If a storm has passed and the system is running poorly, turn it off at the thermostat and have a technician look at the coil, the refrigerant lines and the electrical connections before running it hard. Photos of the unit before anyone touches it help with an insurance claim.
Replacing a system in Richardson
A replacement involves more paperwork in Richardson than people expect. The city's Building Inspection department handles mechanical repair and replacement permits through its online system, and a trade contractor must hold a current Richardson contractor registration before it can even create an account. The city's published permit reports show jobs logged as complete HVAC system change outs and condenser replacements. So when you compare quotes, check that each one includes the permit.
- Permit and registration. Ask whether the company is registered with the City of Richardson and who will pull the permit.
- Load calculation. A 1960s house with new windows, added insulation or a closed-in garage may need a different size than the unit it had.
- Matched equipment. New systems use newer refrigerants, so the indoor coil usually has to be replaced along with the outdoor unit.
- The ducts. Ask for the duct condition in writing. New equipment on leaky ducts still cools the attic.
Check the license yourself. In Texas, air conditioning and refrigeration contractors are licensed by the Texas Department of Licensing and Regulation (TDLR), and the license number belongs on the company's quotes and invoices. Ask for it and look it up with the TDLR license search (opens in a new tab) before work starts. It is also fair to ask for a certificate of insurance.
Why Richardson homeowners call the line
Old house, new question
When a ranch home's third condenser quits, it helps to talk to a company that sees that kind of house all the time. The line puts you through to an independent local HVAC company serving Richardson.
Answered when the office is closed
A 2 a.m. breakdown or a Sunday failure reaches the same automated assistant. When the company is busy on another job, your details are passed along so it can phone you.
No charge for the call
There is no fee for calling or for the transfer. Your money goes to the HVAC company, at the price it quotes, once you approve the job.
Know what to check first
Pages here show where to verify a state ACR license and explain Richardson's contractor registration, so both can be confirmed before work begins.
Services Richardson homes and businesses ask for
Most summer calls are for AC repair: warm air from the vents, a fan that runs while the compressor stays silent, or water dripping from an attic unit. When the system dies late at night during a heat wave, read the emergency AC repair page while you wait. Owners of older equipment who are weighing a new system should start with AC installation and replacement, and a spring tune-up is a low-stress time to find a weak part. Richardson's office buildings along Central Expressway and around the Telecom Corridor have their own needs, covered on the commercial HVAC page.
AC Repair
Warm air from the vents, a unit that hums but will not start, ice on the lines or water in the ceiling. What a proper diagnosis covers in Dallas heat and what to ask before you approve a repair.
Emergency AC Repair (24/7)
No cooling at night, on a weekend or in a heat wave. What to do while you wait, who is most at risk, and how after-hours calls are usually priced.
AC Installation and Replacement
When replacing beats repairing, why a load calculation matters more than the brand, and what a complete installation quote should list.
Commercial HVAC
Rooftop units, offices, shops and restaurants. How commercial service differs from residential and what to ask a commercial HVAC contractor.
How a Richardson call works
- Call any hourAn automated assistant answers (469) 649-7066 and asks whether it is about cooling or heating.
- Describe the problemGive your name, a callback number, your city or ZIP and what the system is doing.
- Get put throughThe call goes to an independent, locally owned heating and air conditioning company, which hears a short summary before it picks up.
- Deal with them directlyThat company diagnoses, quotes, does the work and is paid by you. If it cannot answer, it gets your details to call back.
How this line works: Dallas Air & Heating is a free phone line, not an HVAC company. It answers your call and connects you with an independent local heating and air conditioning company, which inspects, quotes and does the work, and which you pay directly. The line holds no HVAC license and does not repair, install or schedule anything itself. Those companies may pay Dallas Air & Heating a referral fee. You never pay the line. How it works.
Before you sign anything, the guide to picking a DFW HVAC contractor walks through comparing written quotes.
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