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Highly skilled professionals are always at your service.
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Thousands of satisfied customers trust us for their comfort needs. Experience the difference today!

Do you have any questions?

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For you!

Discount for the first repair/tune-up *

Offer expires 5-31-2025

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FAQ

We proudly service Southern California's Inland Empire. Our main service area consists of Rancho Cucamonga, Upland, Claremont, Fontana, Rialto, Colton, Bloomington, Ontario, Pomona, Montclair, La Verne, San Dimas, Walnut, Covina, Glendora, Azusa, Diamond Bar, Chino Hills, Chino and some areas of San Bernardino.

Don't see your city listed? Feel free to contact us to see if we can help!

While we are a Trane Comfort Specialist, we serve all major brands for residential and light commercial HVAC equipment including Goodman, Lennox, Carrier, Payne, Day & Night, Ruud, Rheem, International Comfort Products, American Standard, AC Pro, and many, many more!

We offer 0% financing on approved credit for many services, repairs and installations. Contact our office for more information on these programs.

If your equipment is under warranty, we do provide warranty repairs. Please note that the parts may be under warranty, but if you have a labor warranty, we are unfortunately not able to honor another contractor's labor warranty.

Yes! Many of our satisfied clientele have found us due to an unfortunate experience with other contractors. If you're experiencing an issue with your home or business comfort, we'd love to speak with you and see how we can assist.

Yes! We hold both "B" and "C20" licenses with the California Contractors State License Board. Proof of licensing, bond and insurance is available upon request.

If you are considering replacing your comfort equipment or ductwork, we're happy to provide an estimate free of charge.

If you are seeking a repair or consultation, we typically have one flat rate charge which covers many repairs. If additional repairs are needed, our technician will discuss your options with you.

Many of our services and installations carry a warranty. The warranty period ranges from 1 year to up to 10 years on qualifying installations.

Rebate eligibility and availability varies by a number of factors including equipment efficiency, your location, and, in some cases, income qualification. Be sure to check our rebates page for information on current rebate availability.

Changing your filter is one of the most important actions you can take to ensure your comfort system's lifespan and efficiency. We recommend checking your filter condition every 2-3 months. This will vary based on system utilization, if you have pets, or live in a particularly dusty area.

Didn't find the answer to your question? Visit our Contact page and let us help! We're here to provide the information you need. Reach out to us anytime – we'd love to assist you!

Clients Voices

Stephanie Martinez
"

We are beyond grateful for SIMS outstanding service. They were efficient, clean with their work space, respectful and honest. No one else would help us for a same day request. I'm 5 months pregnant and I have a one year old and our heater stopped working, leaving us in a 55° home. They came out, assessed the situation and addressed the problem. Best quote, time efficiency and work out there hands down. We will be recommending them to friends, family, neighbors or strangers. Thanks, guys.

Craig & Cristiane Conner
"

Simply put, professional, clean, and honest. They left my house as clean as it was when they arrived, even with needing to cut new vent openings. Communication through the entire process from estimate to completion has been great. Well done. Thank you!

Red Grammer
"

SIMS installed our high efficiency Trane AC/Heat Pump system and do the seasonal maintenance checks. Their installation and service have been first class. We love the system and have nothing but good things to say about everyone connected to SIMS.

Chris Carvalho
"

Jon, Bob, and Dave handled every step of my Trane HVAC install from quotation to commissioning. They were prompt, thorough, and professional throughout. Their knowledge and workmanship were confidence inspiring in both the process of choosing a vendor and standing behind their work in the future. Highly recommend.

Sybil W
"

Friendly and on time. John did a great job and explained everything clearly for us. We had two bathroom fans venting into the attic so he connected them to vent outside. He also did a thorough inspection of the HVAC unit.

Ken Walters
"

Sims is a very professional and reasonably priced vendor. I was kept updated when they would arrive. The repair man Jon did a great job and was very efficient and honest. This is the second time I’ve used this company and would recommend them to anyone looking for heating and AC work.

Overall:

5.0/5.0 (240+)