Can I keep my swamp cooler as a backup?

Some homes do, but running both at once wastes energy. Closing off the cooler duct is important.

Is central AC much more expensive to run?

It uses more electricity than a cooler, but cools reliably in humid and smoky conditions.

Swamp Cooler Replacement in Modesto, CA

How swamp coolers work

A fan pulls outside air through wet pads, cooling it as the water evaporates. They use little electricity but need water, regular pad changes and seasonal care.

Why people switch

Humid spells and smoky days make coolers less effective, since they rely on bringing outside air in. They also need roof access, can leak and leave mineral scale.

What replacement involves

Removing the cooler, closing up the roof opening, installing an outdoor condenser and an indoor coil or air handler, and connecting ducts and electrical service.

Ducts

Cooler ducts are often large and designed for high airflow. They may need resizing, sealing or replacement for central AC. See duct testing and sealing.

Roof repairs

The old cooler opening needs a proper roof patch. Ask the contractor whether that's included or handled by a roofer.

Electrical

Central AC needs a dedicated circuit, and older panels may need an upgrade.

Heat pumps

A heat pump can replace both the cooler and an old wall furnace or baseboard heat in one system.

Get a quote

Tell the technician about your current cooler and heating. Send a request and an HVAC technician will get in touch.

Permits

Replacing a cooler with central air usually needs a permit and, in many cases, duct testing under Title 24.

Removing the old unit

Ask whether the quote includes removing the cooler, capping the water line and patching the roof properly so the old opening won't leak.

Indoor comfort

With central air, keep windows closed while the system runs. The house will feel drier and cooler, especially on humid or smoky days.