Diamond Air - A/C & Heating Services

Diamond Air - A/C & Heating Services Call Diamond Air 830.303.9397 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

*Home Comfort Tip*Setting your thermostat to 60 degrees won't cool your house faster.Your AC cools at the same rate no m...
07/22/2026

*Home Comfort Tip*
Setting your thermostat to 60 degrees won't cool your house faster.

Your AC cools at the same rate no matter what temperature you choose. Setting it lower simply makes it run longer.

A well-maintained system is the real key to staying comfortable.

We Deliver Comfort Today!

Diamond Air
830.303.9397
TACLB18506E

07/17/2026

Thank you for trusting Diamond Air with your home. We appreciate every customer and every referral.

*****
Dale P.
Jul 10, 2026
As always the service person was professional, friendly, competent and a pleasure to work with. They always tell me what they find and give me an opportunity to ask questions, if I have any. I feel I am in good hands. They left the work area much cleaner than they found it.

We Deliver Comfort Today
Diamond Air
TACLB18506E

Did you know?MYTH: Closing air vents saves money.FACT: Most systems are designed to move air throughout your entire ho...
07/15/2026

Did you know?
MYTH: Closing air vents saves money.
FACT: Most systems are designed to move air throughout your entire home. Closing vents can actually make your AC work harder.

If one room is always warmer than the others, we'd be happy to help find the real cause.

We Deliver Comfort Today.
Diamond Air TACLB18506E

Home Comfort Tip:When was the last time you changed your air filter?A dirty filter makes your system work harder, reduce...
07/14/2026

Home Comfort Tip:
When was the last time you changed your air filter?

A dirty filter makes your system work harder, reduces airflow, and can even shorten the life of your AC. During a Texas summer, checking it and changing it once a month is a good habit.

Have you checked yours lately?

We Deliver Comfort Today!

It’s almost the end of February and in Texas that means one thing.We’re easing out of heating season and rolling straigh...
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.
TACLB18506E

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 t...
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.

TACLB18506E

It’s Wednesday. That means quick home tip. 👇When is the last time you changed your air filter?Most homes need a new filt...
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
TACLB018506 #

We wrapped up a new system install this week, and this one made us smile.The homeowners are already noticing the differe...
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. ❤️

Wednesday Tip of the Week 🐿️❄️The groundhog saw his shadow, so they say we’ve got six more weeks of winter. Even if Tex...
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

February always feels like a pause between winter and spring. The holidays are behind us, the days are slowly getting lo...
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

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

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