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Best heating and air conditioning pros near Diana, TX

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TRUSTED BY DIANA, TX HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon88
    Verified heating and air conditioning services reviews

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

Avatar for C. Woods Company
C. Woods Company
4.3(
202
)
Central A/C - Service or RepairAir Ducts & Vents - CleanElectric Furnace / Forced Air Heating System - Install+16 more

Serving Diana, TX and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1956

Free estimates

Emergency services offered

"When Sears was the only match on my HVAC project, I knew I was in trouble. Sears did not even bother to contact me so I called the plumbing company C Woods out of Tyler to see if they did HVAC installs. They did! they came out the next day to give me a quote and was able to install the system the following week. I gave them 4 stars for the work quality because they did leave dirt smudges on the walls and scratched the wood near where the old unit had to come from. I have them 4 stars on value for money because while it was probably a fair price, I just thought it was a little pricey. Overall, I would rate them 5*. We've had a good amount of work done at our home - we recently purchased a 42 year old home and my guess is none of the plumbing had ever been updated. So far so good! They are pleasant to deal with and their office staff is top notch!"
Electrical
Electrical
Electrical
Electrical
Outdoor AC Repair

+14

162 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for A/C Contractors, LLC
A/C Contractors, LLC
4.6(
17
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Repair+3 more

Serving Diana, TX and surrounding areas

Approved

In business since 1988

Free estimates

Emergency services offered

"Very fast to respond, had the service tech out the same day, service tech was very nice and friendly explained sp needs to be addressed had them done while he was here and price seemed reasonable to me. Would recommend, will more than likely have them back for future ac and furnace work when needed again."
Longview and Tyler TX Comfort Kings
Response time3 hrs
45 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for Nexgen Comfort Services
Nexgen Comfort Services
4.1(
10
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair+1 more

Serving Diana, TX and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Sept 24, 2025. Well, I have to say this duo team did such a professional job on the new hvac system. I could tell Omar and Eric had the experience and really cared about the proper installation and doing everything correctly. I would definitely recommend this duo team for any work needed on AC work or installation! Also, I would thank Nex Gen for working so well with our home warranty provider. For working with so well with our home warranty provider."
Response time7 hrs
Recommended by50%of homeowners
Two Amigos A/C & Heating LLC
5.0(
1
)
Central A/C - InstallCentral A/C - Service or RepairElectric Furnace / Forced Air Heating System - Install+9 more

Serving Diana, TX and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at Two Amigos A/C & Heating LLC strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction.

35 neighbors recently requested a quote
Noble House Concierge
New to Angi
Air Ducts & Vents - Clean

Serving Diana, TX and surrounding areas

Approved

Emergency services offered

Hello homeowners! I’m the owner of Noble House Concierge and Organization, where I help homeowners enjoy a more organized, comfortable, and well-maintained home.\n\nFrom home organization and decluttering to vacation home monitoring, property checks, and personalized home care, my goal is to take the stress off your shoulders and give you more time to enjoy the things that matter most. \nWhether you need occasional assistance or ongoing support, I provide reliable, personalized services tailored to your home and lifestyle.\n\nYour home deserves exceptional care, even when life gets busy. I would love the opportunity to help make your home feel more peaceful, organized, and cared for! 🏡

Organization
Home Organization📚📁
Home Organization📚📁
...
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Heating and Air Conditioning FAQs, answered by experts

If refrigerant levels are low, it can cause the evaporator coil to freeze up. Low freon causes a drop in pressure, which will make the coil too cold and cause moisture to freeze on the coil. Your system may be low on refrigerant because of a leak. 

Make sure to have maintenance performed twice a year, and contact your local HVAC technician if you suspect your system has low freon levels.

DIY is possible for basic cleaning. Professional services handle advanced maintenance like recharging the refrigerant.

To make the most out of your AC, consider implementing the following best practices: 

  • Choose the right size AC for your home to ensure your unit runs as efficiently as possible.

  • Choose a window with shade, as direct sunlight can cause your AC unit to overheat. 

  • Clean or replace the filter at least every two months. 

  • Inspect the AC’s fan and straighten it if necessary. 

  • Discontinue use immediately if you suspect a malfunction, as running the AC while broken can lead to significant issues. 

  • Turn off (or adjust the temperature) when you leave the house.

Indications of an HVAC problem include inconsistent heating or cooling throughout your home, unpredictable temperature changes, or inadequate air flow from vents. Abnormal sounds such as grinding, banging, or hissing, and unpleasant smells like mustiness or burning are also potential warning signs. A rise in energy costs without an increase in usage may also imply decreased efficiency. An HVAC system that frequently cycles on and off or cannot maintain a stable temperature is malfunctioning.

If you’re looking for a portable, budget-friendly cooling solution that doesn’t require any venting or installation, a ventless AC system is a good option. Similarly, this is a great choice if you’re renting an apartment or home and aren’t allowed to make large, structural changes like installing comprehensive HVAC, or you’re in a shared space and only need to cool your own room.

The Diana, 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.