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Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm

Diamond Air - A/C & Heating Services

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United States
Seguin, TX
Diamond Air - A/C & Heating Services

Call Diamond Air when you want service today! Our promise to you is honesty, integrity and professionalism in a job well done.

Full service air conditioning and heating company that specializes in Residential preventative maintenance with the ability to repair and install complete heating and air condition systems. With our Up Front Pricing you will always know the exact price of each job before the work begins so you can decide what is best for you and your budget. When you want service today, you can count on Diamond Air. For more info please visit our website at www.acrepairseguin.com

02/26/2026

It’s almost the end of February and in Texas that means one thing.

We’re easing out of heating season and rolling straight into allergy season.

The sneezes are real at our house this week.

One of the best things we’ve added to our home is the Remi Halo whole house purification system. It ties right into your HVAC system and cleans the air throughout the entire house.

And yes… I use broccoli as my test. I can cook it and within minutes the smell is gone. If it can handle broccoli, it can handle a lot.

It’s been a game changer for our family. Cleaner air. Less dust. Fewer sniffles.

If allergies are getting to you, call us at Diamond Air at 803-303-9397 and we’ll walk you through it. It works. It really works.
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02/16/2026

This weather is giving full-on spring vibes here in Seguin. ☀️

If your heater hasn’t run in days, that’s your cue. It’s time to think ahead to AC season.

Spring maintenance helps:
• Catch small issues early
• Improve efficiency before summer hits
• Reduce the risk of a July breakdown

It’s a lot easier to schedule now than when it’s 102° and everyone needs help at once.

Call Diamond Air at 803-303-9397 and we’ll get you on the calendar.

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02/11/2026

It’s Wednesday. That means quick home tip. 👇

When is the last time you changed your air filter?

Most homes need a new filter every 30–60 days. In Texas, sometimes even sooner. Between dust, pets, cedar, and just living life… that filter gets dirty fast.

Here’s why it matters:

• A clogged filter makes your system work harder
• That means higher electric bills
• It can shorten the life of your unit
• And your indoor air won’t be as clean

A clean filter is one of the easiest ways to protect your system and your wallet. It takes five minutes.

If you’re not sure what size you need or how often to change it, message us. We’re happy to help.

Diamond Air
We deliver comfort today.
830.303.9397
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02/06/2026

We wrapped up a new system install this week, and this one made us smile.

The homeowners are already noticing the difference.
Quieter.
More efficient.
Easier utility bills.

But the best part?
They came to us as a referral from a long-time client who’s now a friend.

That kind of trust means everything to us.
Referrals really are the highest compliment.

Thank you for continuing to share our name. We don’t take that lightly. ❤️

02/04/2026

Wednesday Tip of the Week 🐿️❄️

The groundhog saw his shadow, so they say we’ve got six more weeks of winter. Even if Texas forgot to get the memo this week.

Here’s your home tip.
Don’t turn your heat way down just because it’s warm outside for a few days.

Big temperature swings make your system work harder and less efficiently. A steady setting helps your heater run smoother and can help keep energy costs in check.

Winter isn’t over yet.
Your heater still has work to do.

If your system sounds different, runs longer than usual, or just doesn’t feel right, that’s your sign to have it checked before the next cold snap hits.

Warm today. Cold tomorrow.
Texas keeps us humble 😄

Diamond Air
TACLB018506E
830.303.9397

02/01/2026

February always feels like a pause between winter and spring.

The holidays are behind us, the days are slowly getting longer and most heaters have been working hard.

This is a good time to pay attention to how your system is holding up. Uneven heat, longer run times or new sounds or signs your heater may be getting tired.

We are here to help.

Diamond Air, your hometown team
☎️ 830.303.9397
TACLB18506E

11/27/2025

Today we’re especially grateful for the folks who make this community feel like home. To all our neighbors, friends, and loyal customers—thank you for trusting our family with your comfort year after year.

We hope your day is filled with good food, warm memories, and the people you love most.

From our family to yours, Happy Thanksgiving!

— Diamond Air 🦃🍁

09/03/2025

Service Excellence

01/05/2025

🥶🥶🥶Protect your pipes, pets and plants!🥶🥶🥶

12/24/2024

Merry Christmas and Happy New Year from our family to yours!
As a proud, family-owned and operated heating and air conditioning company serving our community for the past 30 years, we’re grateful for your continued trust and support. May this holiday season fill your home with warmth, comfort, and joy, and may the coming year bring good health, prosperity, and cozy moments for you and your loved ones. Cheers to another year together!

10/14/2024

How in the world can this be 6 YEARS AGO! Don't blink!

Time for a new pumpkin patch picture at FMC Seguin Pumpkin Patch. Go visit them for yours today!

Address

226 Sunbelt Loop W
Seguin, TX
78155

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm

Telephone

+18303039397

Website

http://acrepairseguin.com/contact-us/

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