Other AC Services

Weighing AC repair against a new system? Let’s look at both.

When AC Repair Stops Making Sense

New AC Installation & Replacement in Ventura County

An AC system that’s failed twice this year, is running on old refrigerant, or is old enough that parts are getting hard to find, is telling you something. At a certain point, the smarter money stops going into repairs and starts going into a system that’s built to last.

Dutton Plumbing, Cooling, Heating & Electrical installs new AC systems across Simi Valley, Ventura County, the San Fernando Valley, Santa Clarita, and Northern LA County. We size every system to the house it’s going into, not to whatever unit happens to be the easiest sell. Don’t let Southern California’s heat get to you; the Dutton team is ready to help.

How We Size a New AC System for Your House

The most common mistake in AC installation isn't a bad unit; it's the wrong size. Oversized systems cool the house fast, shut off, and turn back on again a few minutes later, which wears out components faster and leaves the air more humid than it should be. Undersized systems just never catch up.

Getting it right means accounting for more than square footage. Some homes run hotter upstairs, especially bedrooms above a garage or under west-facing roof lines that take the afternoon sun directly. A converted garage or a home office added after the original system was sized often needs its own accounting too, since the house is asking more of the system than it was built for.

At Dutton, we’ve seen every type of home Southern California has to offer. We walk you through all expected operating costs, so you know you’ve made the right choice for your home, every time.

When It's Time

Signs It's Time for a New Air Conditioner

The system is older than twelve to fifteen years
It's needed more than one major repair in the past two years
It still runs on R-22 refrigerant, which is no longer produced in the U.S.
Energy bills have climbed even though usage hasn't changed
Some rooms stay warm no matter how long the system runs
The system short cycles or struggles to keep up on the hottest days
A repair quote is approaching half of what a new system would cost

None of these alone is a verdict. Together, they're usually enough to make the decision straightforward rather than agonizing. Either way, we’ll talk you through all your options.

Other AC Services

AC Repair if you're not sure yet whether replacement is necessary
AC Maintenance to get the most life out of whichever system you have
Ductless Mini-Split Installation for additions and rooms outside the main system
Heating Services for the system that keeps the house warm the other half of the year
Electrical Services if a panel upgrade is needed to support a new system

Let Dutton Handle It

What to Expect From Our AC Installation Team

We'll Tell You If Repair Still Makes Sense

Not every call needs to end in a sale. If your system still has useful life left and the repair is a reasonable one, we'll say so. Replacement gets recommended because the numbers point there, not because it's the bigger job.

The Old System Comes Out, the New One Gets Started Right

Installation isn't finished when the new unit is bolted in. We remove the old system, connect and test the new one, and confirm it's running the way it's supposed to before we consider the job done.

The Dutton Standard

What You Get On Every Call

At Your Door in 60 Minutes or Less

Most emergency calls get a technician out within the hour, and there is no surcharge for the speed.

Priced by the Job, Not the Hour

You hear the number before the work starts, and it holds until we pack up. A slow job costs us, not you.

Technicians You Can Trust in Your Home

Background-screened, drug-tested, and trained every week. Boot covers go on at the door, and the house gets left the way it was found.

AC Replacement FAQs

AC Installation Questions From Simi Valley Homeowners

How do I know if I should repair or replace my AC?

Age, repair frequency, and refrigerant type are the biggest factors. A system under ten years old with a single failed part is usually worth repairing. A system past twelve to fifteen years, especially one that's needed more than one major repair recently, is often better replaced. We'll walk you through where yours falls before recommending either direction.

How long does a new AC system last?

A well-installed system typically lasts fifteen to twenty years with regular maintenance. Sizing matters just as much as the equipment itself. An oversized or undersized unit wears out faster, no matter the brand.

Why does the size of an AC unit matter so much?

An oversized system cools the house quickly, shuts off, and cycles back on again shortly after, which is harder on the components and leaves the air feeling more humid than it should. An undersized system runs constantly and still doesn't keep up on the hottest days. The right size depends on your home's layout, insulation, and how different rooms get used, not just square footage.

Should I consider a ductless mini-split instead of central AC?

For some homes, particularly additions, converted garages, or rooms that never quite matched the rest of the house, a ductless system can make more sense than extending ductwork. We cover ductless installation separately, since it’s a different kind of project with its own considerations.

What brands of AC systems does Dutton install?

We can install a number of AC systems including Carrier, Rheem, Lennox, and Bryant.

Ready When You Are

Let's Get Your Home's Ducks in a Row

A new AC system is a bigger decision than most repairs, and it deserves a straight answer rather than a sales pitch. Tell us about your system and your home, and we’ll help you choose the right path.