Cold air that
holds up through
a 115° summer.
HVAC Guild handles tune-ups, diagnostics, and small repairs on home AC and heating systems across the Phoenix metro. Call or text, tell us what your system is doing, and you'll get a straight answer and a price before any work starts.
Service, tune-ups & small repairs.
Most summer breakdowns in the Valley come down to a handful of worn parts, clogged filters, and dirty coils. That's the work we focus on.
AC Tune-Ups
Pre-summer check of electrical connections, capacitor, contactor, condenser coil, drain line, and airflow — the parts that fail first when it hits 110°.
Diagnostics
System blowing warm, short-cycling, or not starting? We trace it to the actual cause and explain what we found before anything gets replaced.
Minor Repairs
Capacitors, contactors, fan motors, thermostat swaps, and other small component repairs that get a system back up without a replacement.
Coil & Drain Cleaning
Dust-packed condenser coils and clogged condensate lines are two of the most common Arizona service calls. Both are cheap to fix early.
Heating Check
A fall check-up for heat pumps and furnaces so the first cold night in December isn't when you find out something's wrong.
Filters & Airflow
Right-size filters, clear returns, and check registers so the air you're paying to cool actually reaches every room.
About job size: HVAC Guild is not a licensed contractor. We take on minor jobs that total under $1,000 in parts and labor and don't require a building permit. For full system replacements or anything larger, we'll tell you so up front and point you to a licensed contractor.
Six signs your AC needs a look.
Catching these early is usually the difference between a small repair and a dead system in the middle of July.
Warm Air at the Vents
Fan runs but the air isn't cold. Often a failed capacitor or a condenser fan that's stopped spinning.
Humming, No Start
The outdoor unit hums or clicks but won't kick on — a classic weak-capacitor symptom in extreme heat.
Short-Cycling
Turning on and off every few minutes. Can point to airflow, thermostat, or electrical problems.
Ice on the Lines
Frost on the copper lines or indoor coil usually means restricted airflow. Turn the system off and let it thaw.
Water Near the Air Handler
A clogged condensate drain can back up and overflow into ceilings and closets.
A Jump in the Power Bill
A system running longer to hit the same temperature is working harder than it should.
Call. Look. Quote. Fix.
Call or Text
Tell us what the system is doing and roughly how old it is. A photo of the outdoor unit's data plate helps.
On-Site Look
We check the system in person to find the actual cause, not just the symptom.
Price Before Work
You get the price before we start. If the job is bigger than we can take on, we'll say so.
Fix & Test
We make the repair, then run the system and check that it's cooling (or heating) the way it should before we leave.
Getting through a Phoenix summer.
Things any homeowner can do to cut strain on the system and the power bill.
Change filters more often than the box says
Dust and monsoon haboobs load filters fast here. Check monthly in summer and replace whenever it looks gray. A clogged filter is one of the most common causes of frozen coils.
Give the condenser room to breathe
Keep about two feet clear around the outdoor unit. Trim shrubs, and after a dust storm gently hose the fins from the inside out with the power off — never with a pressure washer.
Don't crank it way down
Setting the thermostat to 65° won't cool the house faster. On a 115° day most systems can only hold about 20° below outdoor temperature, so a steady setting is easier on the equipment.
Pre-cool before peak hours
APS and SRP both offer time-of-use plans with higher late-afternoon rates. Cooling the house a bit extra before the peak window starts and letting it coast can lower the bill.
Questions we hear a lot.
How often should my AC be serviced in Arizona?
Once a year before summer at minimum. Because AC systems here run most of the year, many homeowners also do a fall check that covers heating. Spring is the best time to book, before the first 100° week.
How long does an AC system last in Phoenix?
Heavy use shortens lifespan compared to milder climates. Plenty of systems here run 10–15 years with regular maintenance, but that varies with how well the system was installed and cared for.
My system uses R-410A. Is that a problem?
No. Existing R-410A systems can keep being serviced. Newer equipment is moving to lower-impact refrigerants such as R-454B and R-32, which matters mostly when it's time to replace the whole system.
Do you do full system replacements?
No. HVAC Guild is not a licensed contractor, so we only take jobs under $1,000 that don't need a permit. If your system needs replacing, we'll let you know and suggest you get quotes from a licensed contractor.
How do I check whether a contractor is licensed?
Search the contractor's name or license number on the Arizona Registrar of Contractors website (roc.az.gov). It's worth doing for any job that needs a permit or costs more than $1,000.
What should I do if my AC stops working on a very hot day?
Check the thermostat settings and batteries, the breaker, and the filter first. If the outdoor unit is humming but not running, or you see ice, turn the system off to avoid damage, then call or text us.
Across the Phoenix metro.
From the West Valley to San Tan Valley. Don't see your city? Call or text anyway and we'll let you know.
AC acting up?
Call or text and describe what's going on. We'll tell you what it probably is and what it'll take to fix.