One area hot, everywhere else fine
A duct or balancing issue rather than a failed unit. Often a closed damper or a flex run that has come off above a ceiling tile.
Heating & CoolingPriced as an emergency callout10,702 businesses licensed for it
Commercial AC repair
The symptom entry point: it is hot inside and the air conditioning is not fixing it. This covers whatever system you have, rooftop, split, mini-split or ducted, and the diagnosis usually splits within the first ten minutes into an airflow problem or a refrigeration problem. Cold-but-weak air is airflow. Warm air moving normally is refrigeration. They need different parts and often different amounts of money.
Enter your ZIP to see the businesses listed for this trade nearest to your site, with their phone numbers.
- Free to searchno account, nothing to submit
- Public registersevery listing names its source
- License numberswhere the state publishes one
- Directyou call the business yourself
- Our estimate
- $190-$2,800
- Time on site
- 1.5-5 hrs
- Fault patterns covered
- 2
- Licensed for this trade itself
- 10,702
What commercial AC repair costs
Most of these jobs land near $470. The full spread runs $190 to $2,800, and the gap between those two ends is diagnosis against replacement rather than one business being dearer than another.
What moves it: how much of the job is parts, whether the fault is found in the first hour or the third, access to the equipment, and the hour of the day you call. We never speak to the businesses listed here, so there is no rate card behind any of this. It is our own band for the category, and there is no regional index: the figure does not change with your metro.
| How soon you need it | Typical | Range |
|---|---|---|
| Scheduled visitBooked in advance, no urgency multiplier applied | $470 | $190 to $2,800 |
| Same dayOur band multiplied by 1.12 | $525 | $215 to $3,135 |
| Emergency calloutOur band multiplied by 1.35 | $635 | $255 to $3,780 |
Our estimate from national cost bands, not a quote from any business. Every row is the same band with the urgency multiplier the site applies everywhere else, so this table can never contradict the headline number. Ask for a written price before the work starts.
Who is licensed to do this work
In California the classification that squarely covers this is C-20 warm-air heating, ventilating and air-conditioning, and the register says who holds it. Every listing on this site shows the classification, the license number and the date we read it, with a link back to the register entry so you can check it against the state rather than against us.
Overlapping classifications exist and are labeled as overlapping rather than as a match: C-38 refrigeration, C-4 boiler, hot water heating and steam fitting, C-43 sheet metal and D-62 air and water balancing. A general building contractor may hold the job and subcontract the trade, which is a real answer and a different one, so the card says which of the two you are looking at.
One thing worth being plain about: CSLB classifications do not distinguish commercial work from residential. There is no separate commercial license to hold and no register field that would prove one. That is why this page describes the equipment rather than the contractor, and why nothing here says a business has been checked out. We read a public record on a stated date. That is the whole claim.
If it is down right now
Everything below is about our mechanism. We hold no hours for any business on this site, have never contacted one, and cannot tell you who is awake, so none of this is a promise that somebody answers.
- Enter the ZIP of your premises. We measure from that ZIP to the address each business filed with its licensing authority and keep everything inside 25 miles.
- The order is distance, nearest first. Nobody buys a position in it and there is nothing here to sell.
- If fewer than three businesses clear the filters, the ring steps out toward 75 miles and the page tells you it widened. The distances you then see are the real ones.
- Each listing carries the phone number the register publishes. You call it yourself. We have no phone line, take no fee and pass nothing on.
- Our band for an emergency callout is the category band multiplied by 1.35. That multiplier is ours and describes our estimate, not a rate anybody has quoted.
Before you pay for a callout
Two minutes of checks that sometimes end the problem
We would rather you did not need a callout at all. These are the checks that end the most calls for this fault.
Try a quick fix first
Some issues resolve without a truck roll. Two minutes now can save the callout.
- 1
Feel the air at the vent. Cold but weak is an airflow problem, warm airflow is a refrigeration problem, and knowing which halves the diagnosis time.
- 2
Check the condensate pan and pump if you can see a ceiling stain. A blocked drain is cheap. The ceiling it ruins is not.
- 3
Look for a tripped float switch. Many systems shut themselves down when the pan fills, which reads to an owner as a total failure.
- 4
Replace the filter before you call. If that fixes it you have saved a callout, and if it does not you have removed the most common cause.
What the visit actually includes
- Airflow and temperature-split measurement
- Filter and coil cleaning
- Condensate drain clearing and pump check
- Refrigerant charge verification
- Thermostat programming and calibration
Diagnosis
How commercial ac faults usually present
Written from how these faults actually present on a working premises, not from a manual.
System shuts down and restarts on its own
Frequently a condensate float switch doing exactly what it is for. The blockage underneath is the real repair.
Listed for this trade
Businesses listed for commercial ac
Read from public license registers, so there is no ranking here and no distance: this page has no location to measure from. Enter your ZIP to sort by who is nearest to your site.
By location
Commercial AC repair near you
Local pages show which businesses are listed for that metro, how far out they sit, and the local conditions that drive demand.
Counted from the businesses we have imported for each metro center inside a 25 mile radius, and counting only those whose own license classification names this trade. General contractors licensed widely enough to take it on and subcontract it are excluded here, and still appear in a search. A metro reads “none yet” until we load a register that covers this trade there.
All coverage areasQuestions owners ask
Commercial AC FAQs
Short, specific answers. If yours is not here, ask the business you call before you agree to the visit.
Why is the room hot when the air conditioning is running?
Equipment heat load. A unit sized for the original layout often cannot keep up after a fit-out added a kitchen line, a bank of dryers or twenty more people. A good diagnosis tells you whether it is a fault or a capacity problem, and those are very different bills.
How quickly can someone come out?
Comfort cooling in summer is treated as urgent by most commercial contractors. Say on the phone that it is a business premises with customers in it, because that is what moves you up the list.
Should I repair or replace an older system?
Past roughly twelve years, repeated repairs usually cost more over three years than a replacement. Ask for both numbers before you decide.
Can one visit cover the whole premises?
Yes, and it should. List every zone when you call, including the back office and the stockroom, so the trip is priced for all of them.
Related work
Often booked in the same visit
Batching jobs into one mobilization is the cheapest way to buy this kind of work.
Rooftop HVACRTU not cooling or heating, tripping breakers, noisy fans and belt failures.from $260Commercial heatingNo heat, short cycling, ignition lockouts and unit heater failures.from $210Split systemOutdoor condenser and indoor head faults, error codes, icing and drain leaks.from $200ThermostatBlank displays, wrong readings, schedules nobody set and controls that lost the unit.from $150
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Ready when you are
Need commercial ac sorted?
Search your ZIP to see the businesses listed for this trade nearest to your site, with the license numbers and phone numbers we hold, then call them yourself.
- Cost to search
- Free
- Account needed
- None
- Who you call
- The business