HVAC Company in Seguin, Texas
From installations to repairs, we are your one-stop shop for your HVAC unit.
Seguin, Texas, is now home to premier HVAC services designed to ensure your ultimate comfort. Our team is committed to delivering fast, efficient solutions for all your heating, cooling, and ventilation needs, ensuring your space is always welcoming.
| Comprehensive Solutions
Our HVAC Services
Our wide range of HVAC services is here to address every need, keeping your systems efficient and dependable.
AC & Dryer Duct Cleaning
Effective AC and dryer duct cleaning for fresh air.
- Brushes vent exit grill
- Connects flexible vacuum hose
- Covers attic duct paths
- Disassembles vent joints
- Loosens clumped dryer lint
- Targets airflow block zones
AC Tune Up
Keep your AC efficient with our reliable tune-up.
- Adjusts low voltage wires
- Balances return duct airflow
- Checks float switch location
- Cleans suction line traps
- Monitors condenser fan speed
- Secures system access panel
Air Conditioning Installation or Replacement
Expert AC installation and replacement for cool comfort.
- Aligns return vent frame
- Bonds ductwork transition piece
- Connects compressor cables
- Fastens handler drain pipe
- Mounts indoor coil tray
- Verifies cooling thermostat circuit
Air Conditioning Repair
Dependable AC repair to keep you cool and relaxed.
- Adjusts capacitor wire tension
- Aligns evaporator coil fins
- Bypasses stuck relay switch
- Confirms thermostat signal path
- Removes corrosion from board
- Replaces burnt contact points
Boiler Repair
Trustworthy boiler repair to keep you cozy always.
- Calibrates burner control signal
- Checks low water cutoff
- Cleans pilot tube head
- Inspects combustion air fan
- Patches leaking flange joint
- Tests manual relief handle
Furnace Repair
Dependable furnace repair to keep you warm always.
- Calibrates thermostat relay board
- Clears pressure switch tubing
- Confirms vent damper movement
- Replaces blower shaft bushing
- Secures mounting screw brackets
- Tests igniter glow cycle
Heat Pump Repair
Reliable heat pump repair to keep you comfortable always.
- Bypasses low pressure sensor
- Checks reversing valve wiring
- Cleans outdoor fan grill
- Monitors heating defrost board
- Replaces run capacitor leads
- Verifies backup heat timing
Dependable AC Service and Repair Provider
Struggle with AC issues in Seguin no more. Our team is on standby to address and fix your cooling problems, ensuring your home remains a sanctuary against the Texas heat. We pride ourselves on providing swift, reliable services to get your system back on track.
Personalized HVAC Care
We provide HVAC services customized to the specific needs of your Seguin home or business.
Year-Round Comfort
You need your HVAC system running properly all year. Our services ensure your comfort in all seasons, from scorching summers to chilly winters.
Energy-Efficient Solutions
We focus on energy-efficient solutions to help you save on utility bills while maintaining comfort.
We Offer 24/7 Emergency Services
For all your HVAC needs in Seguin, rely on us for dependable and efficient service.
550+ 5 Star Reviews
Posted on Google![]()
Mark Buainain0 days ago
They are good company and I love working with them every year. Matt and Ian are great people so is the owner. Thanks, Mubark.Posted on Google![]()
Michael White4 days ago
Friendly customer service and technician are professional and complete their job with exceptional quality.Posted on Google![]()
Jose Perello24 days ago
My experience with DIAMONDBACK was excellent.They were honest, efficient and friendly. I recommend them.Posted on Google![]()
ricardo munoz25 days ago
They worked with me to come out on a date/time that was more convenient for me. The gentleman that came out called in advance to let me know who he was and that he was on his way. He showed up on time and did a professional thorough job.Posted on Google![]()
Greg White49 days ago
Chris was very knowledgeable and efficient. He kept me up to date with my project at all timesPosted on Google![]()
Ken Radomam57 days ago
Technician was exceptional, knowledgable and very easy to work with. Would highly recommend this company.Posted on Google![]()
Dorcas Branecky59 days ago
Technician Ian came out and was extremely courteous and so helpful. He took his time explaining everything and resolved our issue. Great customer service!Posted on Google![]()
Derek Smith59 days ago
We use Daimondback for our primary home. Daniel was great! He performed our HVAC inspection for our new property and we will use them again. I highly recommend!Posted on Google![]()
Jeffery. Esparza59 days ago
Very professional and informativePosted on Google![]()
Carol Rettele67 days ago
Always delivers and service technicians are knowledgeable and respectful!Posted on Google![]()
Just a Dad77 days ago
Quick response time, extremely knowledgeable, friendly service. Put a call in for an electrical issue on a down A/C unit. Chris arrived within 2hrs, and quickly put my wife at ease. Thank you for being there when we needed.Posted on Google![]()
Ken Journey78 days ago
Dillon from Diamondback did an excellent job! He was prompt, professional, and informative. I signed on to their Gold Service Plan.
| Service Areas
Serving Seguin, Texas and Surrounding Areas
Seguin, Texas, is a historic city located east of San Antonio, known for its heritage and welcoming atmosphere. The city combines its historical charm with modern conveniences, offering residents a balanced lifestyle. People in Seguin appreciate the local landmarks, recreational opportunities, and the sense of community found throughout the area.
Sebastopol House Historic Site
The Sebastopol House Historic Site is a well-preserved antebellum home in Seguin, Texas. Built in the 1850s, this historic landmark offers guided tours that provide insight into the early history of the region.
Max Starcke Park
Max Starcke Park is a popular recreational area in Seguin, Texas, offering a range of activities, including golf, swimming, and picnicking. The park runs along the Guadalupe River, providing scenic views and opportunities for water-based recreation.
Texas Agricultural Education and Heritage Center
The Texas Agricultural Education and Heritage Center in Seguin, Texas, is dedicated to preserving and showcasing the state’s agricultural history. The center offers educational exhibits, events, and programs that highlight the importance of agriculture in Texas.
Diamondback Air Conditioning, Heating and Refrigeration
Diamondback is a locally owned and operated HVACR company based in Seguin, Texas. Whether it be refrigeration, heating or cooling systems, our trained technicians are more than happy to provide the best service for our customers. All our installers and technicians are trained on a regular, on-going basis so that we are prepared for any situation.