We swapped our furnace for a heat pump during a remodel. Why does it cool poorly?

Likely causes are a charge that was never set by weight, a reused line set with a slow leak, or airflow limited by ducts sized for the old furnace. We measure each before naming the fault and write down what we found.

Our Willows bungalow has no AC. Can the existing furnace ducts carry cooling?

Sometimes. If the ducts are in decent shape and large enough, a coil and condenser or a heat pump can use them. If not, ductless heads avoid the problem. We look at the ducts before recommending either.

Do you work in the 94027 part of Menlo Park near Atherton?

Yes, both 94025 and the 94027 strip. The larger zoned systems there get the same process: controls first, then the equipment. ADRIUM holds EPA 608 Universal certification for refrigerant work, license CSLB #1136642.

AC REPAIR · MENLO PARK

AC Repair · Menlo Park, CA

Menlo Park AC repair for zoned Sand Hill and Allied Arts homes and the heat pumps that replaced gas furnaces.

$99 diagnostic (credited toward the repair)
Same or next-day best effort
CSLB #1136642

Call (925) 999-4095

AC Repair in Menlo Park

AC Repair in Menlo Park.

Menlo Park covers 94025 plus the 94027 strip that overlaps Atherton on the west side, and the work splits down the middle. Sand Hill Road and Allied Arts run multiple zoned systems per house, much of it installed in the late-2000s build wave and now in its main repair years. Downtown, Felton Gables and the Willows are single-furnace ranch and bungalow stock, some with AC added later and some still heating-only.

Heat pumps are ordinary here. The city pushed new construction toward all-electric early, and remodels often swap the gas furnace for a heat pump while the walls are open. So a cooling complaint can also be a heating complaint, and the reversing valve, the defrost board and the charge all get checked. The diagnostic is $99, credited toward the repair, with a written quote before any work.

Common repairs we handle.

Zone board from the late 2000s dropping one zone. A zone board from the build wave can lose one output while the rest keep working. We test each zone's call and damper response and replace the board or the actuator, whichever the meter points to.
Heat pump conversion short on charge. A furnace-to-heat-pump swap done during a remodel may have reused an old line set or skipped a proper vacuum. We check for leaks and moisture, recover the charge if needed, pull a deep vacuum and weigh it back in.
AC added later to a Felton Gables bungalow. When AC was added later, the coil rides on a furnace whose blower and ducts were chosen for heating. If airflow is short, the coil freezes and the rooms stay warm. We measure static pressure and blower speed first.
Worn run capacitor on a 15-year-old estate system. Equipment from the late-2000s build wave is at the age when run capacitors and contactors wear out. We meter the capacitor against its rating, inspect the contactor, and replace what tests weak.

Pricing and warranty

What it costs. What we stand behind.

$99

Diagnostic visit. Credited toward the repair.
1 yr

Parts and labor warranty on completed repairs. In writing before we start.
CSLB

#1136642. Bonded and insured. We file warranty paperwork when applicable.

Nearby cities

AC Repair in neighboring cities.

More cities

AC Repair across our service area.

FAQ

AC Repair in Menlo Park questions, answered.

We swapped our furnace for a heat pump during a remodel. Why does it cool poorly?

Likely causes are a charge that was never set by weight, a reused line set with a slow leak, or airflow limited by ducts sized for the old furnace. We measure each before naming the fault and write down what we found.
Our Willows bungalow has no AC. Can the existing furnace ducts carry cooling?

Sometimes. If the ducts are in decent shape and large enough, a coil and condenser or a heat pump can use them. If not, ductless heads avoid the problem. We look at the ducts before recommending either.
Do you work in the 94027 part of Menlo Park near Atherton?

Yes, both 94025 and the 94027 strip. The larger zoned systems there get the same process: controls first, then the equipment. ADRIUM holds EPA 608 Universal certification for refrigerant work, license CSLB #1136642.

Pricing HVAC repair starts with a $99 diagnostic, credited toward the approved repair, which makes the service call $0 with a completed repair. Considering a new HVAC system? The in-home estimate visit is free.

Credentials Owner-operated by Andrew · CSLB #1136642 · EPA #1279674151528 · BBB A+ · Repairs carry a 1-year warranty; new-system coverage: 10 years manufacturer parts + 2 years labor. Warranty and callback details →

Need ac repair in Menlo Park?

Tell us what is broken. We will quote it.