Heating & Air Conditioning Services in San Diego County

• Age. Past its typical service life, a repair buys less time than the same repair would have bought earlier.
• Refrigerant. Older equipment runs on refrigerants that are being phased out, and availability is a real constraint on repairing rather than replacing.
• Repeat repairs. A system that has needed the same attention more than once is saying something a single fix will not settle.
• Comfort. A room that never catches up with the rest of the building, or a system that runs constantly to hold a temperature, is often a sizing and distribution question rather than a single fault.

If the answer is replace, the next question is how the air gets where it is going. Both routes are in scope: we install, service and remove all AC systems, including mini splits.

What a service call looks at

A system that is not cooling has a short list of possible causes, and separating them is why troubleshooting is its own step rather than part of the repair. Four areas account for most of it.

• Airflow. A loaded filter, a blocked register, a crushed flexible duct run or an undersized return all read as weak cooling long before anything has failed.
• The refrigerant circuit. Refrigerant is not consumed in normal operation, so a system low on it is losing it somewhere, and adding more without finding where it went leaves the cause in place.
• The electrical side. Contactors, capacitors, fuses and the disconnect decide whether the equipment runs at all, so a fault here presents as nothing happening rather than as poor cooling.
• The condensate drain. Cooling pulls water out of the air, and a drain silted closed or a pan backing up is a common reason a healthy system stops itself.

Ductwork, and why it comes up so often

Ducts are the half of a central system nobody looks at, and they age on a different clock from the equipment they serve. Joints separate, flexible runs sag and pinch where they turn, and a remodel from years earlier can leave a room served by a duct sized for a smaller version of it. Return air is the side most often short: a system has to pull back as much air as it pushes out, so a room closed off from the return path gets starved no matter how much supply is aimed at it. That is why ductwork modifications sit on the service list next to installation and repairs, because the fix for a room that will not cool is frequently not the equipment at all.

Ductwork modifications are part of the same scope, so an existing duct network is not automatically the constraint it looks like. Air conditioning is usually estimated by phone. Where a system change runs into the electrical supply, our electrical crew is the same company, and where it runs into a wall or a ceiling that has to be opened up, so is construction.

What maintenance is actually for

Maintenance is a different job from a repair, not a smaller one. A repair restores something that has already failed. Maintenance deals with the conditions that produce failures: coils that foul and lose their ability to move heat, filters that load up and choke airflow, a condensate drain that closes over across a season, and vegetation or stored items crowding an outdoor unit that needs clear air around it to shed heat. None of that is dramatic on any given day, which is why it is easy to defer, and the compounding version shows up as a system running longer for the same result and then as the repair.

How do I choose the best AC repair company in San Diego County?

Judge it on things you can check yourself rather than on what the company says about itself. Three are worth checking before anyone comes out.

• The license, by number. A licensed AC contractor in California carries the C-20 classification, and any license number can be looked up on the CSLB website. MKA Services Inc dba American Construction holds CSLB license #1028305, issued in June 2017, with B, C-36, C-10 and C-20.
• Who does the work. Ask whether the trades are in house or subcontracted. Four trades are performed in house here, and one of the four owners leads each of them.
• A real local address and real hours. Ours is 6250 El Cajon Blvd Ste 209 in San Diego, by appointment only, and the work runs across the county, from AC repair in Santee to ductless AC in Carlsbad. Hours are Monday to Friday, 9am to 5pm. Emergency and after-hours calls taken after 5pm and on weekends.