Allen only issues HVAC permits to registered air conditioning contractors, and inspects the final installation, down to locking caps on the condenser’s refrigerant ports. Here’s how a replacement goes in Allen.
Before replacing an AC in Allen
- Room comfort. Hot rooms may be a duct problem, not a size problem.
- Data plate. Refrigerant type and manufacture date.
- Count systems. Two-story Allen homes often have two.
- Confirm registration. Allen only issues HVAC permits to registered AC contractors.
We review each of these in your written proposal.
What we install in Allen homes
- Thermostats and zoning where it fits
- Heat pumps
- Gas furnace plus AC systems
- Central AC with matched coils
Still deciding? Read should I repair or replace my air conditioner, heat pump installation and are smart thermostats worth it.
We install and service all major brands, including Carrier, Trane, Lennox, Rheem, American Standard, York, Daikin, Mitsubishi, Fujitsu, Amana, Bryant and Goodman.
Allen homes and what their age means for your system
Allen grew fast after 1990. The Census puts the median Allen home at 2003, and about 73% of homes are single-family detached houses. That means a lot of original builder-installed systems reaching the age where major repairs start.
The Census counts about 39,094 homes in Allen. Here’s how they break down by decade built:
| Built | Share of homes | What we often find |
|---|---|---|
| Before 1990 | About 17% | The older part of Allen. Most systems here have been replaced more than once. |
| 1990s | About 23% | About 30 years old; most are on a second system. |
| 2000s | About 33% | Allen’s biggest decade. Original builder systems are 15 to 25 years old. |
| 2010 and later | About 27% | Newer homes, mostly on R-410A or newer refrigerants. |
The house’s age doesn’t tell you the system’s age. The data plate on the outdoor unit does, and it’s the first thing we read.
Allen’s inspection checklist calls for locking refrigerant caps on all the service ports of an AC condenser. They keep refrigerant from being tampered with or vented. If your outdoor unit is missing them, we’ll point it out. Allen’s rough-in checklist also calls for ducts and equipment to be supported with 6-inch saddles and solid metal straps fastened to the structure. Sagging, poorly supported ducts in an attic restrict airflow, so we check the supports whenever we’re working up there.
Allen permits for HVAC work
- Allen’s inspection types include a duct rough and an HVAC/mechanical final. The City advises homeowners to make sure a hired contractor has applied for and received the permit before work starts.
- The City’s mechanical exemptions include replacing a minor part that doesn’t change the equipment’s approval.
- Allen’s code says a person who isn’t registered with the City as an air conditioning and refrigeration contractor may not obtain permits for HVAC work. Registration lasts one year.
- The City of Allen processes all permits through its Citizen Self-Service (CSS) portal. HVAC/Mechanical is a residential permit type.
Dallas Heating and Air Conditioning is registered with the City of Allen as a mechanical contractor. For a replacement, we pull the permit and schedule the inspection.
Allen inspects HVAC work at the duct rough and at the HVAC/mechanical final. At the final, the City checks that the equipment and controls work and that the condenser has locking refrigerant caps on its service ports.
Refrigerant and efficiency rules that affect your decision
R-22. The EPA ended the manufacture of new R-22 equipment in 2010 and the production and import of R-22 itself on January 1, 2020. An R-22 system can keep running, but it can only be recharged with recovered or reclaimed R-22. A large leak on an R-22 unit is often the point where replacement makes more sense than repair.
SEER2. Since January 1, 2023, Department of Energy rules require new split-system central air conditioners installed in the Southeast region, which includes Texas, to meet at least 14.3 SEER2 under 45,000 Btu/h and 13.8 SEER2 at 45,000 Btu/h and up. New split heat pumps nationwide must meet 14.3 SEER2. See SEER vs. SEER2.
New refrigerants. Under the EPA’s AIM Act rules, new home air conditioners and heat pumps are moving to refrigerants with lower global warming potential, such as R-454B and R-32. Read what the R-410A phase-out means.
How a Allen installation works
- Home visit. We check the equipment, ducts, electrical, attic access and the refrigerant type on the data plate.
- Sizing. We size the system for the house, its insulation, windows and ducts, not by copying the old label.
- Written options. Upfront written pricing for each option before any work starts. Financing available.
- Permit. We pull the Allen permit.
- Installation. Outdoor unit, matched coil or air handler, refrigerant lines, drains, electrical and thermostat as needed.
- Startup and inspection. We charge and test the system, then the City inspects it.
When it makes sense to replace
- You’re adding or remodeling space and the old system can’t keep up
- The house never gets comfortable even after repairs
- An R-22 system has a large leak
- Your current system has failed and repair isn’t worth it
Upfront written pricing before any work starts
Every replacement starts with a written proposal. Here’s what goes in it:
- Financing available.
- Each equipment option is priced on its own.
- Any duct, attic access or electrical work the City will check is listed separately.
- What the written proposal covers: the equipment, matched indoor coil or air handler, refrigerant lines, drain, electrical connections, thermostat, permit and inspection.
Why homeowners call us
- All major brands, including Carrier, Trane, Lennox, Rheem, American Standard, York, Daikin, Mitsubishi, Fujitsu, Amana, Bryant and Goodman
- Registered with the City of Allen as a mechanical contractor
- Financing available
- Upfront written pricing before any work starts
- 24/7 service
- NATE-certified technicians
More for Allen: HVAC service in Allen, AC repair in Allen, heating repair in Allen. See also AC installation and replacement and HVAC maintenance and tune-ups.
Also nearby: AC installation in Plano, AC installation in McKinney, AC installation in Wylie.
Call 972-423-0012, open 24 hours.
