AC Installation San Mateo
Fast, Professional HVAC Service Throughout San Mateo & San Francisco Counties
AC Installation in San Mateo: Quick Answers
How much does a new AC cost in San Mateo
New AC installation typically ranges from $5,000 to $15,000 depending on system size, efficiency rating, and installation requirements. High-efficiency systems cost more but save significantly on energy. Call (925) 578-3379 for a free San Mateo estimate — we serve all San Mateo & San Francisco Counties neighborhoods.
What size AC do I need?
AC sizing depends on your home's square footage, insulation, windows, and orientation. We perform Manual J calculations to determine the exact tonnage needed for efficient cooling. Call (925) 578-3379 for a free San Mateo estimate — we serve all San Mateo & San Francisco Counties neighborhoods.
What SEER rating should I choose?
California requires minimum 15 SEER2 for new installations. Higher SEER ratings (up to 21) cost more but provide greater energy savings. We help you calculate the payback period. Call (925) 578-3379 for a free San Mateo estimate — we serve all San Mateo & San Francisco Counties neighborhoods.
Are there rebates for new AC systems?
Yes! High-efficiency AC systems may qualify for utility rebates through PG&E. We help you identify and claim all available incentives. Call (925) 578-3379 for a free San Mateo estimate — we serve all San Mateo & San Francisco Counties neighborhoods.
Why Choose Professional AC Installation in San Mateo?
Sizing a new air conditioning system for your San Mateo home requires understanding local microclimates — not just square footage. 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. Our NATE-certified designers perform Manual J load calculations for every job in San Mateo & San Francisco Counties, accounting for insulation levels, window orientation, and local humidity. Whether you need a compact system for a Hillsdale condo or a multi-stage unit for a larger Baywood property, Galaxy delivers the right system at a transparent price.
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 installation 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 Installation
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 installation 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 Installation Services Do You Offer in San Mateo?
Central Air Conditioning
Central AC provides whole-home cooling with consistent temperatures throughout. We install high-efficiency systems up to 21 SEER2 that dramatically reduce cooling costs.
- Up to 21 SEER2 efficiency
- Variable-speed options
- Quiet outdoor units
- Smart thermostat compatible
AC Replacement
Replacing an old AC? We properly size your new system, remove old equipment, and install your new unit to manufacturer specifications for optimal performance.
- Proper load calculations
- Complete old unit removal
- Refrigerant line replacement
- Thermostat upgrade options
Split System Installation
Split systems pair an outdoor condenser with an indoor air handler or furnace. We install matched systems for the best efficiency and reliability.
- Matched indoor/outdoor units
- Optimized refrigerant piping
- Proper electrical connections
- System commissioning
Zoned Cooling Systems
Zoning allows different temperatures in different areas of your home. Stop cooling unused rooms and enjoy personalized comfort where you need it.
- Independent zone control
- Damper system installation
- Multiple thermostat setup
- Energy savings through zoning
Why Do San Mateo Homeowners Trust Galaxy?
Premium AC Brands
As an American Standard Platinum Dealer, we offer top-tier cooling systems from American Standard, Carrier, Lennox, and Trane.
Expert Installation
Our NATE-certified installation team ensures proper sizing, refrigerant charge, and airflow for peak efficiency and comfort.
5-Year Labor Warranty
Every installation includes our 5-year labor warranty plus manufacturer warranties up to 10 years on components.
Free In-Home Estimates
We provide detailed, no-obligation quotes with multiple options so you can choose the best system for your budget.
What San Mateo Customers Say About Our AC Installation 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 Installation in San Mateo
How much does a new AC cost in the Bay Area?
New AC installation typically ranges from $5,000 to $15,000 depending on system size, efficiency rating, and installation requirements. High-efficiency systems cost more but save significantly on energy.
What size AC do I need?
AC sizing depends on your home's square footage, insulation, windows, and orientation. We perform Manual J calculations to determine the exact tonnage needed for efficient cooling.
What SEER rating should I choose?
California requires minimum 15 SEER2 for new installations. Higher SEER ratings (up to 21) cost more but provide greater energy savings. We help you calculate the payback period.
Are there rebates for new AC systems?
Yes! High-efficiency AC systems may qualify for utility rebates through PG&E. We help you identify and claim all available incentives.
Recent AC Installation 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 Installation in San Mateo?
Call us today or fill out our online form to get started with expert HVAC service