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Best heating and air conditioning pros near Seguin, TX

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TRUSTED BY SEGUIN, TX HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon352
    Verified heating and air conditioning services reviews

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

Avatar for Aire Serv of New Braunfels-Canyon Lake
Aire Serv of New Braunfels-Canyon Lake
5.0(
13
)
Air Ducts & Vents - CleanCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+7 more

Serving Seguin, TX and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

"The owners of this business were professional, thorough with their quote, quick to respond to my inquiry, and just really nice! I plan to hire them in the future based on my interaction with them. My husband realized he could clean our dryer vent, so we didn’t hire them for this service, but we will be hiring them for any HVAC services in the future. I wouldn’t normally leave a review for a company I have not used, but the owners made such a great impression on me I decided to put my recommendation out there! We’re very thankful to have found a business that actually returns calls, has reasonable pricing, and seems to operate with the type of integrity that’s hard to find these days. I would highly recommend Aire Serve of New Braunfels to my friends and family- ask for Chris or Tara- they were great!"
project photos
Avatar for Legacy Heating And Air Conditioning Services
Legacy Heating And Air Conditioning Services
4.9(
23
)
Central A/C - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving Seguin, TX and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"Excellent. We couldn't be happier with the work Legacy did. The people (Raymond and George) were punctual, friendly and very considerate of our home. They correctly resized and replaced our air ducts and installed a Reme Halo. I inspected the work they did and was very impressed with their work. Air circulation in the house is 100% better and stronger, a great improvement."
Electrical whole home surge protector installation
New Trane Condenser Installation
New Trane Air Handler Installation
New Trane Condenser Installation
Clearing out a clogged drain

+1

Response time5 hrs
7 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for O 2 KOOL REFRIGERATION & A/C
O 2 KOOL REFRIGERATION & A/C
4.7(
584
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallDuctless Mini-split A/C - Install or Replace+47 more

Serving Seguin, TX and surrounding areas

Approved

In business since 2015

Emergency services offered

Warranties offered

O2Kool has been Austin’s premier HVAC company for the past 15 years and we’ve shown no signs of cooling down. Our ability to confidently assess, install, repair,and upkeep our units, sets us apart from all other HVAC companies. Our experienced technicians are on call 24/7 in order to provide optimum customer service to each and every one of our clients.\nWe aim to fulfill our clients’ HVAC needs by promising reliable, honest, quality service but we don’t stop there. Our technicians will educate our customers on the process of maintaining their units in order to maximize their a/c and heating experience.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+25

29 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Texas Air Quality LLC
Texas Air Quality LLC
4.8(
378
)
Air Ducts & Vents - Clean

Serving Seguin, TX and surrounding areas

Approved

In business since 2015

Offers commercial services

Customers say: True professional

Air Duct, Dryer Vent, Insulation, Chimney Sweep visit us on our website texasairqualityllc.com. For quickest response, please call us directly.\nWe have established a solid reputation for quality work, and outstanding results for residential homes. We are committed to providing a personalized service for each individual home. We look forward to building strong, long-term relationships with our clients, and guarantee your satisfaction.

Chimney - Firepl Logs
Chimney - Firepl Logs
Chimney - Firepl Logs
BEFORE
AFTER

+28

1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for X-TECH AC and Heating LLC
X-TECH AC and Heating LLC
4.6(
106
)
Central A/C - Service or RepairHeat Pump - Repair or ServiceElectric Furnace / Forced Air Heating System - Repair+5 more

Serving Seguin, TX and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

\nX-TECH AC and Heating LLC provides premier residential and commercial HVAC and refrigeration services across Leander and the Greater Austin area. Backed by over 30 years of mechanical trade experience, our licensed technicians specialize in complete AC installations, gas heating systems, Mitsubishi mini-splits, heat pumps, system tune-ups, and complex system issues.\n\nWe operate with total transparency, upfront pricing, and a commitment to getting the job done right the first time. Whether you need an emergency repair, a system replacement, or routine maintenance, we deliver reliable, high-quality climate control tailored to your home or business. Bilingual service available.\n

Installation of System
Installation of System
Installation of System
Installation of System
Installation of System

+1

91 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for 2 Cool Guys Duct Cleaning, LLC
2 Cool Guys Duct Cleaning, LLC
4.9(
89
)
Air Ducts & Vents - Clean

Serving Seguin, TX and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"2 Cool Guys came to clean our ducts and they were very thorough. They are very familiar with HVAC systems and took care of some minor problems they found at no additional charge. That s good value! They were on-time, courteous, and very careful to clean up everything when they were done. Highly recommended!"
Response time1 day
Response rate88%
Recommended by97%of homeowners
Avatar for Will Fix It
Will Fix It
4.5(
194
)
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Install+5 more

Serving Seguin, TX and surrounding areas

Approved (Corporate)

In business since 1994

Free estimates

Emergency services offered

"Excellent company with dedicated pros. I have had both a tankless water heater and A/C system installed. We could not be happier with the results. Warranty and follow-up work have been performed with absolutely no questions asked. Highly recommended,"
Will Fix It Service Van
187 neighbors recently requested a quote
Recommended by73%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

To diagnose a bad HVAC or AC damper, assess the airflow from your vents. For a manual damper, close it, run your system, and check for airflow. If air is still coming through the vents, the damper is likely faulty and needs repair or replacement. For an automatic damper, turn on your HVAC system and monitor the airflow and room temperature. Signs of a problem include low airflow, a room that won't maintain its set temperature, or a drafty feeling. If you suspect a faulty automatic damper, you may need to hire a professional for repairs.

The cost to install a ductless mini-split AC system ranges from $2,000 to $14,000, depending on the type of unit, the number of zones or rooms, and the complexity of the installation. On the low end, a system for one or two zones in a single room costs around $2,000. Covering two zones for more rooms can cost between $6,000 and $8,000. For a larger multi-zone system to cover an entire home, costs can be $14,000. If you don’t already have an AC system in place, you may need to add the cost of permits, an electrician, and a concrete pad.

You can run an HRV with air conditioning—assuming that you decide to keep the system on during the summer. The HRV will continue to bring in fresh outdoor air, which will then flow into your AC unit and cool down your home. It will also keep moving the stuffy indoor air out of your house.

During the summer, it’s best to set your AC to 78 degrees when you’re home and awake, according to the Department of Energy (DOE). For better energy efficiency, raise the temperature slightly to 85 degrees while you’re out of the house. The National Sleep Foundation advises lowering your thermostat to between 60 and 67 degrees when you’re asleep.

Yes, you can potentially save $60 to $200 by handling your own air conditioner capacitor installation. However, capacitor replacement comes with the risk of electric shock. Only attempt this if you have the knowledge and protective gear to carry it out safely. Otherwise, we recommend hiring an HVAC pro with the experience to properly diagnose the issue and avoid damaging other parts of your AC unit.

The Seguin, 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.