Our Story
Trusted Service from RM III AC & Heating
A company built on the principle that good service doesn't cost — it pays.
Who We Are
Family-Owned, Community-Focused
Your Trusted Local Experts
RM III AC & Heating is a family-owned, owner-operated HVAC company based in Laveen Village, AZ. We opened our doors in 2020 — but the expertise behind the name goes back three generations.
Owner and lead technician Raul Martinez Mori III is a third-generation HVAC tech with 27 years of hands-on experience. Raul personally diagnoses every system before quoting — no pressure, no upselling, just an honest assessment and a fair price.
That’s the whole idea behind “Excellence with Integrity.” We treat your home like our own, do the job right the first time, and stand behind the work — licensed (ROC #332513), BBB-accredited, and proud to serve our neighbors across Metro Phoenix.
27 Yrs
Tech Experience
3rd Gen
HVAC Technician
5.0
HomeAdvisor Rating
A+
BBB Accredited
Our Story
Three Generations of Honest HVAC
Family-owned, owner-operated, and built on the trade Raul grew up in.
Three generations deep
The trade runs in the family. Raul learned HVAC from his father, who learned it from his — so by the time Raul put his own name on the truck he already had 27 years on Phoenix roofs and in Phoenix attics.
Founded around 2020
RM III AC & Heating, LLC was established as a licensed Arizona company (ROC #332513), owner-operated out of Laveen Village and serving 30 communities across Metro Phoenix.
The owner on the job
Raul personally handles most calls and service work. That's deliberate — it keeps the diagnosis and the accountability with the same person, rather than handing you to a dispatcher.
Excellence with Integrity
Not a slogan pulled from a marketing playbook — it's the standard the last two generations worked to. BBB-accredited with an A+ rating since September 2021, and 5.0 on both HomeAdvisor and Yelp.
How We Work
What does that actually mean on a service call?
Four commitments you can hold us to — not adjectives
Diagnosis before a quote
Raul confirms the actual fault — airflow, charge, electrical, duct sizing — before anyone discusses replacement. Plenty of systems we're called out to replace need a capacitor or a clean coil.
We won't oversize to hide a duct problem
If the ductwork is undersized, a bigger unit doesn't fix it — it just runs harder. We say so, even when the bigger sale would be easier.
Licensed, bonded and insured
Arizona ROC #332513, BBB-accredited with an A+ rating since September 2021, and an authorized Day & Night dealer that services every other major brand.
You get the owner, not a call center
Raul personally handles most calls and service work, so the person diagnosing your system is the person accountable for it.
When can you actually reach us?
We’re open Monday through Saturday, 7:00 AM - 5:00 PM, and closed Sunday. Most service calls are dispatched the same business day, and after-hours support is available for urgent issues.
We’d rather be straight with you than advertise a promise we can’t keep: RM III is a small, owner-operated shop, not an around-the-clock call center. If something fails overnight, call and leave a message — Raul picks up urgent work first thing.
Want to check our work before you call?
We publish what we know rather than keeping it behind a quote. Start with the honest cost ranges and the repair-or-replace math:
Ready to Experience the Difference?
Honest diagnostics, fair pricing, and a third-generation tech on every job — that's the RM III AC & Heating difference.