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!

A Question for our New Customers

What was it about our service that really impressed you?

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

Join us to Receive $20 off your next Repair!