Honest heating & air, from the guy on the license.
United Home Air is Jonathan Heidari’s owner-run HVAC shop in Poway. We repair, replace, and maintain AC, furnaces, heat pumps, and mini-splits across San Diego County — and most big jobs are done in a single day.
Every heating and cooling problem a house can have
One crew, one license, no upselling department. If it moves air through a home, we install it, fix it, or maintain it.
AC repair
Not cooling, short-cycling, or dead? We diagnose the actual fault and fix it — often same-day.
Learn more →Furnace repair
No heat, short cycling, or a burner that won't light — found and fixed, warrantied.
Learn more →Heat pumps
One system that heats and cools, sized for inland summers. Ask us what rebates are actually live.
Learn more →AC installation
Right-sized central AC, installed clean, permitted, and HERS-tested.
Learn more →Furnace installation
Old furnace done? We swap gas or electric furnaces in a day — permit and duct test included.
Learn more →Mini-splits
Garages, ADUs, add-ons, and homes without ducts — quiet zoned comfort without tearing walls open.
Learn more →Ducts & airflow
Weak airflow, hot rooms, dusty vents — usually the ducts, not the unit. We test, seal, and replace.
Learn more →Maintenance
A yearly once-over that catches $80 parts before they become $8,000 summers.
Learn more →The equipment we stand behind
We install and service every major brand on this wall — any size, any model, residential or commercial.
Real jobs, real houses — same crew every time.
Straight off our phones: old systems out, new ones in, and the service calls in between. Swipe through a few — no stock photos here.
“They replaced our gas furnace with a new heat pump and air handler. Jonathan was very responsive and friendly, and his whole team was great. They did the whole project in one day and were respectful of our house, including keeping noise levels low and making sure they had their shoe covers on as well as placing a sheet trail from the front door to the air handler closet.”
From cafés to server rooms.
Light-commercial HVAC across San Diego County — package units, splits, and precision cooling for spaces that can't afford downtime.
Hanna’s Creamery & Café — Westfield UTC
Storefront comfort for a busy café: steady, quiet cooling through service-hour heat.
Orb Group — La Jolla Center
Data-center AC at 4660 La Jolla Village Dr: precision cooling where a degree of drift means downtime. Representative image.
You'll know who's coming.
Big outfits send whoever's next on the board. We're a small crew, and customers ask for us by name — read the reviews and you'll meet everyone before we ring the bell.
Jonathan
Owner & licensed contractor
So glad we found an honest guy.— Tom Hammond, Google
Mohammad
Service technician
came earlier than expected. [...] he was able to come the same day, pin point the problem, and had an affordable solution.— Claudine Tsui, Google
Felipe
Installer
Jonathan and Felipe at United Home Air were great.— Anthony Simonetti, Google
The reviews use our first names.
Home-warranty networks like American Home Shield and HomeGuard trust us with their toughest calls. Homeowners who find us directly get the same crew without the middleman.
“Often home warranty contractors are hit and miss. Well Jonathan is certainly a hit. Very knowledgeable, professional and works hard. Did a great job replacing our condenser and evap coil. Would definitely recommend and use again if needed.”
“I've had bad experiences with the warranty company vendors before but this one was different. John was excellent. He quickly fit me into his busy schedule. He ended up having to order a part for me but he left me with a work-around part while I waited. He was not required to do this so i appreciated it.”
“He showed up exactly when he said he would diagnosed my problem in minutes, had the necessary parts with him and the expertise to fix it in no time [...] solved my problem for about 1/10 of what I thought it was going to cost.”
Three steps, no runaround.
Call or request a visit
You talk to the crew, not a call center. We’ll tell you honestly whether it sounds like a fix or a replacement.
Straight diagnosis
We find the actual fault, show it to you, and price the options before any work starts.
Fixed — and finished
Repairs are warrantied, installs are permitted and HERS-tested, and we leave the house as clean as we found it.
Permits, done right
Every California changeout legally needs a permit and a third-party duct test. Low bids that skip it cost you at resale. We pull the permit every time.
How we work →Rebates, told straight
Most rebate pages online are out of date. Here’s what’s actually live in San Diego right now — and what’s waitlisted.
What’s real in 2026 →