Contact us TODAY to learn how to receive $20 OFF Repairs! 830-303-9397 or [email protected]

Join us TODAY to Receive $20 OFF your next Repair!

Diamond Air is proud to be staffed with the best-certified repair technicians. Each specialist at Diamond Air has the experience and skills to maintain, diagnose, and correct problems throughout your heating system. Our on-going training allows our technicians to correctly adjust system controls to recommended settings and test the performance of the entire system using specialized tools and test equipment.

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Service in HOURS, Not DAYS!

We have been in the home comfort business in Seguin, TX for nearly 20 years. We a are locally owned and operated, fully licensed HVAC contractor specializing in Residential Preventative Maintenance, Repairs and have the ability and experience to replace your existing A/C and Heating System. You can reach us 7 days a week at 830.303.9397. Call Diamond Air if you want Service you can count on!

Call Today To Get a FREE Replacement Estimate!

Diamond Club Membership

It only takes two visits a year to ensure that your air conditioning and heating systems are running at their full potential. Your membership guarantees appointments and provides valuable FREE services and discounts on repairs. Regular service of your equipment saves energy costs and extends the life of your system.

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Preventative Maintenance

The Super Service Tune-up Why Tune-Up Your System? Extend the life of your system.  Often adding up to 10 years! Save your $100’s on unwanted repairs. Save your $1,000’s on your electric …

Repair

Diamond Air is proud to be staffed with the best-certified repair technicians. Each specialist at Diamond Air has the experience and skills to maintain, diagnose, and correct problems throughout your heating …

Replacement

In choosing a heating and air conditioning system for your home, it’s important to choose a system that meets the comfort needs and safety of you and your family. At Diamond Air, we understand it …

Our Reviews

See What Our Clients Are Saying About Our Work

“On-time, techs were professional and clean and didn’t smell like cigarettes (thank you!!), good communication!! The technicians were pleasant and helpful and the quality of work was excellent!”

Molly Lucas

“Friendliness and honesty, willing to educate us on what we needed to do to help our problem. Definitely, use Diamond Air!”

Rick Lawson

“As expected. Have never been disappointed with service. Obvious since they have been doing it since I moved to Seguin fourteen years ago.”

Robert Holmes

“The guys you sent did a great job! They were courteous and professional and did their work without disrupting our morning. Thank you!”

Dee Griffin

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