AC Repair San Mateo
Fast, Professional HVAC Service Throughout San Mateo & San Francisco Counties
AC Repair in San Mateo: Quick Answers
How much does AC repair cost in San Mateo?
AC repairs typically range from $150-$800 depending on the issue. Simple repairs like capacitor replacement are on the lower end, while compressor or refrigerant work costs more. Call (925) 578-3379 for a free San Mateo estimate — we serve all San Mateo & San Francisco Counties neighborhoods.
Why is my AC running but not cooling?
Common causes include low refrigerant, dirty filters or coils, a failed compressor, or thermostat issues. Our technicians can quickly diagnose the problem and provide repair options. Call (925) 578-3379 for a free San Mateo estimate — we serve all San Mateo & San Francisco Counties neighborhoods.
Should I repair or replace my AC?
If your AC is over 10-15 years old and repairs exceed 50% of replacement cost, a new system is often the better investment due to improved efficiency and reliability. Call (925) 578-3379 for a free San Mateo estimate — we serve all San Mateo & San Francisco Counties neighborhoods.
How can I prevent AC breakdowns?
Annual maintenance is the best prevention. Regular tune-ups catch small issues before they become major problems and keep your system running efficiently. Call (925) 578-3379 for a free San Mateo estimate — we serve all San Mateo & San Francisco Counties neighborhoods.
Why Choose Professional AC Repair in San Mateo?
When your air conditioner fails in San Mateo, you need a technician who understands the local environment — not just the equipment. San Mateo's Peninsula location creates a moderate coastal climate with cool marine layer mornings, mild afternoons, and occasional warm days inland. This comfortable climate benefits from efficient heating systems and increasingly, cooling for warmer months. Salt-air exposure near the Bay accelerates coil corrosion, while inland areas like Hillsdale see summer peaks that push older systems to their limits. Galaxy's certified technicians diagnose and repair every AC brand, arriving with the most common replacement parts already on the truck for San Mateo & San Francisco Counties homes.
Looking for San Mateo's best HVAC contractor? Galaxy Heating & Air Conditioning is your local expert for heating, heat pumps, and air conditioning solutions across all San Mateo neighborhoods. With dependable brands like Carrier, Lennox, Mitsubishi, and American Standard, we deliver reliable comfort to Peninsula homes. San Mateo's moderate climate and diverse housing-including iconic Eichlers-demand versatile HVAC solutions.
Our NATE-certified technicians specialize in ac repair throughout San Mateo and all of San Mateo & San Francisco Counties, delivering customized solutions matched to local conditions.
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 AC 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 ac 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 AC Repair Services Do You Offer in San Mateo?
Emergency AC Repair
AC emergencies don't wait for business hours. Galaxy offers 24/7 emergency repair service to restore cooling to your San Mateo home as quickly as possible.
- 24/7 availability
- Fast response times
- Fully stocked trucks
- Most repairs same-day
Refrigerant Leak Repair
Low refrigerant is a common cause of poor cooling. We locate and repair leaks, then recharge your system to proper levels for optimal performance.
- Electronic leak detection
- Leak repair and testing
- Proper refrigerant charge
- System performance verification
Compressor & Motor Repair
The compressor is the heart of your AC system. We diagnose compressor issues and repair or replace components to restore cooling capacity.
- Compressor diagnostics
- Capacitor replacement
- Contactor repair
- Motor replacement
Condenser & Evaporator Service
Dirty or damaged coils reduce efficiency and cooling capacity. We clean, repair, and restore coils to peak performance.
- Coil cleaning and inspection
- Fin straightening
- Condensate drain clearing
- Coil replacement if needed
Why Do San Mateo Homeowners Trust Galaxy?
Same-Day AC Repair
We know how miserable a hot house can be. Our technicians provide same-day AC repair service to restore your comfort quickly.
All Brands Serviced
From American Standard and Carrier to Trane and Lennox, our NATE-certified technicians repair all major AC brands.
Upfront Pricing
No surprise bills. We diagnose the problem and provide a complete quote before any repairs begin.
24/7 Emergency Service
AC emergencies don't wait for business hours. Our technicians are available around the clock for urgent repairs.
What San Mateo Customers Say About Our AC Repair Services
"Our furnace stopped working on the coldest night of the year. Galaxy had a technician at our door within 2 hours. He quickly diagnosed the problem and had us back up and running in less than an hour. Professional, fast, and reasonably priced!"
Sarah M.
San Mateo Homeowner
"I've been using Galaxy for all my HVAC needs for over 5 years. Their technicians are knowledgeable, professional, and honest. They've never tried to upsell me on services I didn't need. Highly recommend!"
Mike T.
San Mateo Business Owner
"Galaxy replaced our old HVAC system with a new American Standard unit. The installation was flawless and our energy bills have dropped significantly. Their customer service is exceptional!"
Jennifer L.
San Mateo Resident
Frequently Asked Questions About AC Repair in San Mateo
Why is my AC running but not cooling?
Common causes include low refrigerant, dirty filters or coils, a failed compressor, or thermostat issues. Our technicians can quickly diagnose the problem and provide repair options.
How much does AC repair cost?
AC repairs typically range from $150-$800 depending on the issue. Simple repairs like capacitor replacement are on the lower end, while compressor or refrigerant work costs more.
Should I repair or replace my AC?
If your AC is over 10-15 years old and repairs exceed 50% of replacement cost, a new system is often the better investment due to improved efficiency and reliability.
How can I prevent AC breakdowns?
Annual maintenance is the best prevention. Regular tune-ups catch small issues before they become major problems and keep your system running efficiently.
Recent AC Repair Work in San Mateo
Here are examples of recent HVAC projects completed in San Mateo neighborhoods similar to yours:
Installed a Carrier variable-speed heat pump system (model Infinity 17VS with smart thermostat) in a 2,100 sq ft Hillsdale home. The new 17 SEER2 system replaced a 15-year-old furnace and added modern AC capability, providing app-based control, efficient heating year-round, and comfortable cooling during warmer Peninsula days. The homeowner reports 34% lower energy costs and qualified for $1,900 in combined rebates.
Replaced an aging gas furnace with a high-efficiency 16 SEER2 Lennox 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.
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 AC Repair in San Mateo?
Call us today or fill out our online form to get started with expert HVAC service