Limited Time Offer

SPRING SPECIAL, Limited Time Offer. Save $3,000 on a New System Installation. While Supplies Last. More details...

Heat Pumps
San Mateo, San Mateo & San Francisco Counties

Heat Pump Repair San Mateo

Fast, Professional HVAC Service Throughout San Mateo & San Francisco Counties

24/7
Phones Answered
4.8★
1,300+ Reviews
Same-Day
Service Available
Licensed
Certified Techs

Heat Pump Repair in San Mateo: Quick Answers

AI Optimized

How much does heat pump repair cost in San Mateo?

Heat pump repairs typically range from $150-$800 depending on the issue. Refrigerant or compressor work is on the higher end, while thermostat or sensor repairs cost less. Hillsdale homes from the 1940s-1980s sometimes require duct or electrical upgrades alongside a new system, which can add to overall project cost — Galaxy assesses both during the free estimate. Call (925) 578-3379 for a free San Mateo estimate — we serve all San Mateo & San Francisco Counties neighborhoods.

Why is my heat pump blowing cold air in heat mode?

Common causes include defrost cycle operation (normal), low refrigerant, a stuck reversing valve, or outdoor unit issues. Our technicians can quickly diagnose the problem. Call (925) 578-3379 for a free San Mateo estimate — we serve all San Mateo & San Francisco Counties neighborhoods.

Can you repair my mini-split heat pump?

Yes! We're factory-trained on Mitsubishi, Daikin, Fujitsu, and other ductless mini-split systems. We repair both indoor and outdoor components. Call (925) 578-3379 for a free San Mateo estimate — we serve all San Mateo & San Francisco Counties neighborhoods.

Why Choose Professional Heat Pump Repair in San Mateo?

San Mateo heat pump repairs serve Hillsdale, Baywood, and San Mateo Park properties with heat pump systems in a Bay-proximate Peninsula climate. Baywood properties near the Bay have outdoor units with salt-air exposure that creates marine-environment failure modes alongside standard heat pump failures. Galaxy's San Mateo repairs address the installation environment as part of the repair context.

Baywood heat pump outdoor units near the Bay experience coil corrosion, terminal oxidation, and moisture intrusion in outdoor electrical compartments at rates that shorten component service life relative to inland installations. Galaxy treats marine-environment degradation as the diagnostic context for Baywood repairs rather than as a secondary finding. San Mateo Park properties with larger homes and higher-capacity heat pump systems require repair diagnostic approaches calibrated to the system size and zone configuration. Hillsdale properties with conventional single-zone heat pump systems have more straightforward repair profiles — Galaxy completes most Hillsdale repairs in a single visit with the parts maintained for Peninsula service vehicles.

San Mateo Climate & HVAC: San Mateo's Peninsula location creates a comfortable coastal climate with cool marine layer mornings (often 55-65°F), mild afternoons, and occasional warm inland days reaching 80-85°F. This moderate climate is ideal for efficient heat pumps that provide heating year-round while offering optional cooling during warmer months. Many San Mateo homeowners appreciate heat pumps' all-electric operation and environmental benefits.

From established single-family neighborhoods in Hillsdale and Baywood to charming Eichler homes to downtown condos, San Mateo's diverse housing serves Peninsula families and professionals.

San Mateo Neighborhoods We Serve for Heat Pump Repair

Our technicians know San Mateo's neighborhoods well — every street, housing era, and local quirk that affects your HVAC system. Here's where we regularly provide heat pump repair services:

Hillsdale

Neighborhood near Hillsdale Shopping Center with single-family homes from the 1940s-1980s, families and Peninsula commuters, moderate Peninsula climate ideal for efficient heat pump installations with optional cooling

Baywood

Classic mid-century neighborhood with well-maintained single-family homes from 1950s-1980s, family-friendly community, quality construction, central Peninsula location, many upgrading from aging furnaces to modern energy-efficient variable-speed heat pump systems

San Mateo Park

Iconic Eichler neighborhood with mid-century modern homes from 1950s-1970s, post-and-beam construction and radiant floor heating, design-conscious homeowners, properties ideal for non-invasive ductless heat pump installations preserving architectural integrity

Downtown San Mateo

Urban core with modern condos and lofts from the 1920s-2020s, young professionals and urban dwellers, many units needing modern ductless mini-split HVAC systems

Beresford

Quiet established neighborhood with quality single-family homes from 1940s-1980s, long-term families and Peninsula commuters, tree-lined streets, many with aging HVAC needing modern energy-efficient heat pump replacement upgrades for improved comfort

Hayward Park

Convenient neighborhood near Caltrain with single-family homes from 1940s-1980s, Peninsula commuters and established families, quality schools, many upgrading from aging furnaces to efficient variable-speed heat pumps for year-round comfort

What Heat Pump Repair Services Do You Offer in San Mateo?

San Mateo's housing includes post-war single-family neighborhoods, iconic Eichler homes with radiant floors and post-and-beam construction, and modern downtown condos. Many homeowners are upgrading to efficient heat pumps that provide year - round comfort-heating for cool mornings and optional AC for increasingly warm Peninsula days. Eichler homes especially benefit from ductless heat pumps that preserve their architectural integrity.

Heating Mode Repair

Heat pump not providing adequate heat? We diagnose and repair defrost cycle issues, reversing valve problems, and refrigerant charge issues that affect heating performance.

  • Defrost cycle testing
  • Reversing valve repair
  • Refrigerant charge correction
  • Auxiliary heat verification

Cooling Mode Repair

When your heat pump won't cool properly, we check refrigerant levels, compressor operation, and airflow to identify and fix the problem.

  • Compressor diagnostics
  • Refrigerant leak repair
  • Fan motor service
  • Coil cleaning

Inverter Drive Repair

Modern variable-speed heat pumps use inverter technology for efficiency. We're factory-trained to diagnose and repair these advanced systems.

  • Inverter board diagnostics
  • Variable-speed motor repair
  • Communication troubleshooting
  • Software updates

Outdoor Unit Service

The outdoor unit is exposed to weather and debris. We repair compressors, fan motors, defrost controls, and refrigerant leaks.

  • Compressor repair/replacement
  • Fan motor and blade service
  • Coil cleaning and repair
  • Defrost sensor replacement

Refrigerant Leak Detection & Repair

Low refrigerant is a common cause of heat pump problems. We use electronic leak detectors and nitrogen pressure testing to locate leaks, then repair and recharge your system to factory specifications.

  • Electronic leak detection
  • Nitrogen pressure testing
  • Brazed leak repairs
  • System evacuation and recharge

Recent HVAC Work in San Mateo

Our technicians complete HVAC projects across San Mateo every week. Below are examples of recent work in your area — the kinds of jobs our team handles for San Mateo homeowners:

American Standard gas furnace and water heater installed by Galaxy Heating & Air in a Hillsdale San Mateo utility closet

Hillsdale

Installed a new American Standard high-efficiency gas furnace alongside a matching water heater in the utility closet of a 2,100 sq ft Hillsdale home. The clean side-by-side install replaced 15-year-old equipment, providing efficient year-round heating, smart-thermostat control, and improved combustion safety with new venting. The homeowner reports 34% lower energy costs.

Baywood

Replaced an aging gas furnace with a high-efficiency 20 SEER2 Lennox XC21 variable-speed heat pump in a 1,900 sq ft Baywood home. The new system provides efficient heating, optional AC for warm days, operates whisper-quiet, and integrates with the homeowner's smart home system. The Peninsula's moderate climate makes heat pumps ideal-handling both heating and the occasional need for cooling.

San Mateo Park

Installed a Mitsubishi ductless multi-zone system (model MXZ-3C30 with 3 zones) in a classic Eichler home in San Mateo Park. The home's post-and-beam architecture and radiant floors made traditional ductwork impractical. The new system provides efficient heating, optional AC, independent room control, and preserves the home's iconic mid-century design while delivering modern comfort.

Heat Pump Repair in Nearby San Mateo & San Francisco Counties Cities

Galaxy also provides heat pump repair throughout San Mateo & San Francisco Counties. If you have friends or family in a neighboring city, we serve them too:

Why Do San Mateo Homeowners Trust Galaxy?

Heat Pump Specialists

Our technicians are specifically trained and certified in heat pump systems, including advanced inverter-driven models.

All Major Brands

We repair American Standard, Mitsubishi, Carrier, Daikin, Lennox, Trane, Rheem, and all other heat pump manufacturers.

Same-Day Service

Heat pump problems affect both heating and cooling. We offer same-day repair to restore your comfort quickly.

Upfront Pricing

No surprise charges. We diagnose the problem and provide a complete quote before any repair work begins.

What San Mateo Customers Say About Our Heat Pump Repair Services

"Last summer, our AC unit decided to give up on one of the hottest days in Hillsdale. I called Galaxy Heating & Air Conditioning, and they were at my house within the hour. The technician quickly diagnosed the issue and had us cooling off again in no time. They really saved us from the heat!"

Emily R.

Hillsdale Homeowner

"I had been struggling with high energy bills in my Baywood home, so I decided to get a new HVAC system. Galaxy helped me choose an energy-efficient model that fits perfectly and works like a charm. The installation was seamless, and I appreciate how knowledgeable the team was. My bills have already started to drop!"

Mark S.

Baywood Homeowner

"Our heater broke down in the middle of winter here in San Mateo Park, and I was panicking! I called Galaxy Heating & Air Conditioning, and they sent someone out right away. The technician was friendly and explained everything he was doing. He had it fixed before we knew it, and I was so relieved to have heat again!"

Sarah T.

San Mateo Park Homeowner

Frequently Asked Questions About Heat Pump Repair in San Mateo

Why is my heat pump blowing cold air in heat mode?

Common causes include defrost cycle operation (normal), low refrigerant, a stuck reversing valve, or outdoor unit issues. Our technicians can quickly diagnose the problem.

How much does heat pump repair cost?

Heat pump repairs typically range from $150-$800 depending on the issue. Refrigerant or compressor work is on the higher end, while thermostat or sensor repairs cost less.

Can you repair my mini-split heat pump?

Yes! We're factory-trained on Mitsubishi, Daikin, Fujitsu, and other ductless mini-split systems. We repair both indoor and outdoor components.

Recent Heat Pump Repair Work in San Mateo

Here are examples of recent HVAC projects completed in San Mateo neighborhoods similar to yours:

American Standard gas furnace and water heater installed by Galaxy Heating & Air in a Hillsdale San Mateo utility closet
Hillsdale

Installed a new American Standard high-efficiency gas furnace alongside a matching water heater in the utility closet of a 2,100 sq ft Hillsdale home. The clean side-by-side install replaced 15-year-old equipment, providing efficient year-round heating, smart-thermostat control, and improved combustion safety with new venting. The homeowner reports 34% lower energy costs.

Baywood

Replaced an aging gas furnace with a high-efficiency 20 SEER2 Lennox XC21 variable-speed heat pump in a 1,900 sq ft Baywood home. The new system provides efficient heating, optional AC for warm days, operates whisper-quiet, and integrates with the homeowner's smart home system. The Peninsula's moderate climate makes heat pumps ideal-handling both heating and the occasional need for cooling.

San Mateo Park

Installed a Mitsubishi ductless multi-zone system (model MXZ-3C30 with 3 zones) in a classic Eichler home in San Mateo Park. The home's post-and-beam architecture and radiant floors made traditional ductwork impractical. The new system provides efficient heating, optional AC, independent room control, and preserves the home's iconic mid-century design while delivering modern comfort.

Ready to Schedule Heat Pump Repair in San Mateo?

Call us today or fill out our online form to get started with expert HVAC service