Katy Air Conditioning

A/C Repair and Air Conditioner Installation Service in Katy, TX

Quality Guarantee

Get more with John Moore, your Neighborhood HVAC Experts in A/C Repair, A/C Replacement, and A/C maintenance since 1994

If you live in Cinco Ranch, Grand Lakes, or any other subdivision in Katy, it’s probably hard to believe that your home is nearing its fifteen-to-twenty-year mark. If you’re looking for AC service you can trust with your home and your time, call John Moore for timely, professional AC repairs when you need them the most. From Old Katy to the corners of Fort Bend, John Moore has provided plumbing service to thousands of Katy homeowners over the last 52 years. And over the past 20 years, we’ve provided HVAC service to Katy homeowners as well. .

As you prepare to keep cool through another hot Katy summer, John Moore is the name you can trust for responsive AC service. If you don’t know us already, we are a professional home services company that aims to keep your family comfortable and safe. Rest assured that our technicians are all licensed, trained, and background-checked to deliver the highest quality AC repair services to each and every Katy home.

Call 877-730-2525 today! We schedule appointments 24/7.

John Moore’s HVAC Services Include:

  • A/C Replacements
  • A/C Repairs including condensate drain line and condenser repairs
  • A/C Maintenance and Tune-up
  • Indoor Air Quality
Current Discounts & Specials
Act Now to Take Advantage of Our Limited-Time Offers!

$19 Freon Check!*

Is Your A/C System Blowing Warm Air? Call John Moore Today.

If your A/C system is blowing warm air, you could be low on refrigerant! Call us today for a $19 Freon check to ensure you stay cool this summer!.


*Does not include leak test.


10-Year HVAC Warranty!*

10X the Industry Standard with 10-Year Parts and 10-Year Labor Warranty

You heard right. We have extended our labor warranties on select complete 14 SEER and 16 SEER systems to offer a 10 year parts and 10 year labor warranty! This is 10X the industry standard and you'll find it nowhere else but at John Moore! Give us a call today.


*Excludes acts of God (flood, lightning, etc), lack of maintenance, and vandalism.

A Name You’ve Trusted for all Your HVAC Needs for Over 52 Years.

If your AC is more than 10 years old and giving you trouble, you may want to consider installing a new air conditioning system.

If your AC is more than 10 years old and giving you trouble, you may want to consider installing a new air conditioning system. There are a lot of parts to your home’s A/C, and they all affect one another: the outdoor condenser unit houses your A/C’s refrigerant and condenser coil, which pushes cold refrigerant to the evaporator coil located in your furnace or air mover. A blower fan blows warm air that cools once it passes the evaporator coil and flows into your home’s air ducts. The refrigerant, which has now absorbed some heat, gets pumped back outside where it cools once again. On top of that, your home’s HVAC system has two condensate drain lines, one that drains condensation from the evaporator coil to a main drain line, and a secondary emergency condensate drain line that carries water to a spigot located under your roof’s soffit.

When your A/C reaches ten years of age, parts start to fail one at a time. Usually, the outdoor coil gets dirty, making it harder to cool and move refrigerant, leaving it vulnerable to cracks or leaks. This malfunction in refrigerant flow can freeze your indoor evaporator coil. On top of that, the insulation around your condensate drain line may start to deteriorate, leading to water damage in your ceiling. Furthermore, there are a plethora of mechanical and electrical parts that can malfunction within your A/C’s outdoor condenser.

AC Units

We service all major central air conditioner brands

Instead of paying to repair one part of your A/C at a time, it’s usually more cost-effective to put that money towards a new, more efficient A/C system. There are also a few rebates and tax-credits you can take advantage of when you upgrade!

Ready for a new A/C? Set up an appointment today! And ask about our 0% Financing.

Air Conditioning Replacement in Katy, TX

If your AC is blowing warm air or not running at all, you may need to install a new air conditioning system.

No matter what part of Katy you live in, John Moore will send an AC repair service technician out to you at no cost. Our air con service experts will assess the problem and provide you everything you need to make an informed decision on whether to repair or replace your system. We love to educate our customers, so just ask us.

Set up an appointment today. And if you’re searching online for a Katy plumber, Katy roofer, or Katy electrician, search no further – we do that too!

John Moore is where I started my career path in HVAC and I wouldn’t change it for anything, unless I could be Batman. Working here has taught me many different skills that my previous jobs could not have done and it has made me a better person. Justin D; John Moore HVAC Technician

John Moore is Improving Your Neighborhood One House at a Time

We provide AC service to all Katy neighborhoods including, but not limited to, the following:

Governors Place
Memorial Parkway
West Memorial
Look at North Katy
Cinco Ranch
Cross Creek Ranch
Falcon Landing
Governors Place
Grand Lakes

Heritage Square
King Lakes
Nottingham Country
Pine Mill Ranch
Silver Ranch
Churchill Farms
Woodcreek Reserve
Cardiff Ranch
Cinco Ranch SW

Marshall Oak
Pine Mill Ranch
Cinco Ranch Northwest
Avalon Seven Meadows
Grayson Lakes
Seven Meadows
Lake Pointe Estates

Canyon Gate
Westgreen Park
Windsor Park Estates
Green Trails
Kelliwood Lakeforest
Windsor Park Lakes
Avalon Seven Meadows
Westheimer Lakes North
Falcon Point

John Moore Licensed Technicians

Hear what our customers are saying about our employees and our service.


I could not have asked for better quality in service. The customer service when I called on Saturday evening was superb despite the inability to send a technician that evening. Terry was courteous and respectful of my time and family while at my home. He quoted me the repairs prior to completing any work which was greatly appreciated. I would recommend John Moore, more specifically Terry A as a technician for any work that is required.

- HVAC Houston

I had the luxury of working with Troy W. of John after Hurricane Harvey caused my hot water to go out due to the caulking on my roof. Troy discovered it was the caulking on my roof that needed repair, because of it's leakage, it caused my pilot light to go out, he lit it and arranged for Charles R., the roofer, to come out and repair the caulking on the roof. The repair work was done in one day. They worked as a team to ensure that it was done. I called John and I got Moore! Thank you Troy and Charles!

- HVAC Houston

In Katy Call John Moore

(877) 730-2525

Or click below to schedule service online.


© 2017 John Moore, LP
Service Area – Katy, TX | A/C Repair in Katy
M-38638 | TECL 400092 | TPCL 11201 | TACLB 38048E