Top-rated heating and air conditioning pros.

Best heating and air conditioning pros near Justin, TX

Enter your zip and get matched with up to 5 pros

Need a pro for your heating and air conditioning service project in Justin, TX?

Select your specific project to find the pro for you.

TRUSTED BY JUSTIN, TX HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.4k+
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Justin - Updated Nov 2026

Avatar for Frontline AC & Heating LLC
Frontline AC & Heating LLC
5.0(
10
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Justin, TX and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"They did a great job. Very reasonable priced and did the job very promptly. Great customer service and knowledgable. They gave us the option of repairing or a new unit. No pressure at all. We decided on a new unit due to the age of our HVAC. Would highly recommend."
Air handler
Heatpump
Air handler Overview
Smart Nick Tstat
Roto Brush

+7

33 neighbors recently requested a quote
Bill Clark Air Conditioning & Heating
5.0(
27
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair - For Business+8 more

Serving Justin, TX and surrounding areas

Approved

In business since 2000

Free estimates

Customers say: Quick response

"Bill came on time, was very congenial and very experienced. My son is owner operator of a HVAC company in Alabama. I described my problem to him and he told me what he thought was wrong. I didn't mention that to Bill though. Bill diagnosed the problem and fixed the exact thing that my son had mentioned. He fixed the problem and did other test on the system. He did a very professional job and the a/c is still running and believe me in this heat, it was money well spent. I comment Bill for his excellent work and would recoment him to other people."
Recommended by100%of homeowners
Avatar for A TEAM MECHANICAL HTG & AIR CONDITIONING
A TEAM MECHANICAL HTG & AIR CONDITIONING
5.0(
20
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair

Serving Justin, TX and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"Branden called twice to let me know when he would be arriving. Work was done quickly and professionally. Was honest about what might need fixing in the future, but was not pushy about fixing it right away. Will use for all my HVAC needs in the future!"
gas system install
New A/C System
Response time40 mins
Response rate85%
3 neighbors recently requested a quote
Avatar for LOWE'S Air Duct Cleaning Inc. -- Unlimited Vents
LOWE'S Air Duct Cleaning Inc. -- Unlimited Vents
4.6(
165
)
Air Ducts & Vents - Clean

Serving Justin, TX and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Fixed my poor ventilation of my dryer duct. Don't know how effective the hvac duct cleaning was. I figured it didn't hurt to do it once since it's never been done but mostly purchased deal for dryer duct."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+30

Response time9 hrs
Response rate100%
11 neighbors recently requested a quote
...
Showing 1-10 of 616
Heating and Air Conditioning FAQs, answered by experts

Whether an HVAC damper should be open or closed depends on the season, the zone it controls, and the temperature in that zone. In the summer, open upstairs dampers and close lower-level dampers to get the most efficient cooling possible. In the winter, do the opposite. Cool air will naturally flow down to lower levels, while warm air will rise. This keeps your system from working harder and helps prevent common AC problems.

The standard rule for return duct sizing is that the return vent should be the same size or larger than the supply vent. This will ensure balanced airflow in your home and reduce strain on your HVAC system.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

Many HVAC companies offer free quotes and free estimates for repairs and new HVAC systems. Others offer low-cost quotes or apply the cost of the estimates or diagnostics to your final bill if you hire them. Be aware that some companies advertise free HVAC quotes and recoup the costs by charging more for their services. Free HVAC quotes are never truly free—they cost the company time and effort—so be a good customer. Also understand that you may end up paying for free quotes in another way if you don’t hire a reputable company.

This depends on the extent of the freezing. Some ACs only need an hour or two to thaw out, but others may need a full day to completely unfreeze. Once you turn off the system to let it unfreeze, check it periodically to make sure the drain pan doesn’t overflow. When you turn the system back on, keep an eye on it to ensure it doesn’t start freezing again.

The Justin, TX homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.