CSLB C-20 · San Diego County

Ductwork Modifications in San Diego

Ductwork modifications for air conditioning in homes and businesses throughout San Diego County, when the ducts in place no longer match the rooms they serve.

Emergency and after-hours calls taken after 5pm and on weekends.

The job

When the ducts are the problem

A system can be sized correctly and still leave rooms warm, because the ducts decide where the cool air actually goes.

Signs the ductwork needs changing

  • One room, or one end of the building, that never catches up.
  • Weak airflow from some registers and strong airflow from others.
  • Walls that have moved: a remodel, addition or conversion that changed the rooms the ducts were laid out for.
  • Whistling or rushing air at registers or grilles.
  • Ducts that are crushed, kinked or disconnected in an attic or crawl space.

A room that stays hotter than the rest is normally a distribution problem rather than a broken air conditioner. The usual causes are a duct run that is too long, too small or crushed, a blocked register, or a room with no real return path.

What modifications cover

Ductwork modifications change the duct system to match the building as it is now: a new run to a room that was never served, a rerouted or resized run where airflow is starved, or a layout reworked after walls have moved. Which of those a building needs comes from looking at the existing ducts, not from a rule of thumb.

Ducts and a new system

When a system is replaced, the existing ducts have to suit the new equipment. Installation and ductwork modifications are both on our air conditioning list, so that check belongs to the same job. See AC installation and replacement.

When ducts are not the answer

Some rooms are better served without extending ducts at all. A mini split conditions the room it is mounted in, with no ductwork.

Ductwork on a remodel

On a remodel or addition, the duct runs have to be sequenced with the framing, the electrical and the finishes. Construction is one of the four trades performed in house here, so that sequencing stays inside one company.

Why us

Why customers call us for ductwork

Licensed for air conditioning

MKA Services Inc dba American Construction holds CSLB license #1028305, which carries the C-20 classification for air conditioning.

Air conditioning is in house

One of the four trades the company performs in house, and one of the four owners leads it.

Ducts and equipment together

Ductwork modifications, installation and repairs are on one air conditioning list.

Commercial and residential

Ductwork modifications for homes and for businesses.

Questions

Ductwork questions

Why does one room stay hotter than the rest of the house?

Normally a distribution problem rather than a broken air conditioner. The usual causes are a duct run that is too long, too small or crushed, a blocked register, or a room with no real return path. Ductwork modifications address the route, and a ductless head is the other approach.

Do I need new ductwork when I replace my AC?

Not always. The existing ducts have to suit the new system. Where they do, they stay. Where they do not, ductwork modifications become part of the job.

Can ductwork be extended to a room addition?

Often, provided the system has the capacity for the extra space and there is a practical route for the run. Where there is not, a mini split cools the new room on its own.

How does a ductwork estimate work?

Air conditioning is usually estimated by phone. Call (619) 333-2699 or send the form below with which rooms are not keeping up.

Do you take after-hours calls?

Emergency and after-hours calls taken after 5pm and on weekends. Regular hours are Monday to Friday, 9am to 5pm.

Contact

Tell us what you need.

Send the basics and we'll follow up about the next step.

Phone: (619) 333-2699

Hours: Monday to Friday, 9am to 5pm

After hours: Emergency and after-hours calls taken after 5pm and on weekends

Service area: All of San Diego County

What needs doing, roughly when, and the address or city.

Prefer to call? (619) 333-2699

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