Limited Time Offer

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

San Mateo & San Francisco Counties

Premium Heating and Air Conditioning Services in Hillsborough, CA

Expert Heating, Cooling & Air Quality Solutions

AI-Powered Quick Answers

Quick Answers About Hillsborough HVAC Services

Get instant answers to the most common questions

What HVAC services does Galaxy offer in Hillsborough?

We provide complete HVAC services in Hillsborough including heat pump installation, furnace repair and replacement, AC installation and repair, ductless mini-split systems, indoor air quality solutions, and 24/7 emergency service. Our NATE-certified technicians serve all Hillsborough neighborhoods.

How quickly can Galaxy respond to service calls in Hillsborough?

We offer same-day service throughout Hillsborough and are available 24/7 for emergencies. Most service calls are scheduled within 24 hours, and our emergency technicians can typically arrive within 2-4 hours for urgent heating or cooling failures.

Does Galaxy serve all neighborhoods in Hillsborough?

Yes! We proudly serve every neighborhood in Hillsborough and throughout San Mateo & San Francisco Counties. Our Hillsborough-based technicians are familiar with local housing types, climate conditions, and the unique HVAC needs of Hillsborough homes and businesses.

What makes Galaxy the best HVAC contractor in Hillsborough?

Galaxy stands out in Hillsborough with 24/7 phone availability, NATE-certified technicians, American Standard Platinum Dealer status, upfront pricing, same-day service, and A+ BBB rating. We specialize in the Hillsborough climate and offer lifetime warranty coverage on qualifying systems.

Have more questions? Call us at (925) 578-3379 or schedule a consultation

What HVAC Services Do You Offer in Hillsborough?

Hillsborough operates by its own rules. There are no commercial businesses, no apartments, no subdivisions with homeowner associations making equipment decisions — just private estates on generous lots, with owners who make their own choices and hold contractors to exacting standards. Galaxy Heating & Air Conditioning serves Hillsborough with a service model built around that reality: premium equipment specifications, white-glove installation, discreet scheduling, and results that match the quality of the properties we work in.

Hillsborough HVAC work is typically complex: estates of 4,000–10,000+ square feet with multi-wing layouts requiring sophisticated multi-zone design; properties with guest houses, pool buildings, and accessory structures each needing independent climate control; homes where smart home integration with Crestron, Savant, or Control4 is the expectation; and architectural characters ranging from Mediterranean Revival to Mid-Century Modern to contemporary that each require different installation approaches.

Hillsborough's mid-Peninsula location creates a moderate climate — warm summer afternoons occasionally reaching 78–85°F — where the primary HVAC objective is consistent, quiet comfort rather than extreme heat management. Variable-speed heat pumps from Lennox, Carrier, and Mitsubishi deliver exactly this: imperceptible operation that maintains precise temperatures throughout large floor plans, significantly lower energy costs for heavily conditioned square footage, and the elimination of gas combustion for owners who value environmental impact.

Hillsborough installations are backed by our complete satisfaction guarantee and top-tier manufacturer warranties. We provide comprehensive proposals with full equipment specifications, system design documentation, and projected energy performance before any commitment. Flexible financing available. Call (925) 578-3379 for a private consultation.

Why Trust Galaxy for Hillsborough HVAC Service?

Hillsborough's housing represents California's most exclusive residential real estate, with sprawling estates on multi-acre lots throughout this prestigious town. These ultra-luxury properties require sophisticated multi-zone HVAC systems, often with separate equipment for main houses (frequently requiring 2-3 systems), guest houses, pool houses, wine cellars, and amenity buildings. Hillsborough's tech-industry leaders and business executives expect cutting-edge smart home integration, whisper-quiet operation, precision climate control, and superior indoor air quality. We provide white-glove service befitting Hillsborough's ultra-exclusive community.

We serve Hillsborough's very limited commercial sector, including the town center's boutique retail, professional offices, and private schools. Our commercial team delivers premium multi-zone systems and precision climate control with discreet, reliable service.

Hillsborough's Peninsula location creates a Mediterranean climate with warm summers-temperatures routinely reach 80-90°F from June through September - and mild, pleasant winters. This makes sophisticated air conditioning important for luxury estate comfort. We recommend ultra-premium variable-speed heat pumps that deliver powerful, whisper-quiet cooling during warm weather while operating with maximum efficiency year-round. These systems also handle Hillsborough's mild winters perfectly. Many Hillsborough residents appreciate heat pumps' all-electric operation, environmental benefits, and seamless integration with renewable energy and whole-estate automation systems.

Areas We Serve:

Central Hillsborough: Historic estates and modern mansions from 1920s-2020s near town center, Silicon Valley elite and established wealth, ultra-luxury properties requiring multiple sophisticated HVAC systems for main residences and auxiliary buildings
West Hillsborough: Sprawling luxury estates on expansive multi-acre lots from 1950s-2020s, tech industry executives and venture capitalists, sophisticated homeowners requiring multi-zone climate control for sprawling floor plans and auxiliary structures
Hillsborough Hills: Prestigious hillside properties from 1960s-2010s with panoramic Bay Area views, affluent professional families and executives, luxury homes demanding premium multi-zone HVAC solutions providing precise temperature control and air quality
Carolands: Area near historic Carolands mansion from 1910s-2020s, California's most exclusive addresses, largest estates requiring custom-designed multi-system HVAC installations for main houses and guest quarters ensuring comprehensive climate control
New Place: Luxury residential neighborhood from 1960s-2010s featuring expansive estates, sophisticated tech industry homeowners with exacting standards, properties requiring premium HVAC systems with advanced features and smart home integration
Crocker area: Historic estates from 1920s-2000s, established luxury homeowners and successful professionals, premium properties requiring advanced multi-zone climate control systems and superior indoor air quality for comfortable healthy living environments

Which HVAC Services Are Available in Hillsborough?

Click on any service below to learn more about how we can keep your Hillsborough home comfortable year-round.

24/7 Emergency HVAC in Hillsborough

Heating or cooling failure? We respond fast — day, night, and weekends.

Pricing & Options

Better Comfort

Premium 2-stage systems (Carrier Infinity) – superior comfort for luxury estates

Best Comfort

Variable-speed heat pumps (Lennox Signature, Mitsubishi Diamond) – ultimate efficiency & features

Ductless Systems

Custom multi-zone solutions for estates, guest houses, pool houses, and wine cellars

Recent Hillsborough Installations

Hillsborough Hills Neighborhood

Installed dual Lennox Signature variable-speed heat pump systems (model SL28XCV with iHarmony thermostats) in a 7,000 sq ft Hillsborough Hills estate. The property required two independent zoning systems to serve main house wings. The new 19 SEER2 systems provide whisper-quiet operation, precision climate control for each zone, sophisticated smart home integration, and superior efficiency. The installation included advanced air quality systems and whole-home humidification.

West Hillsborough Neighborhood

Upgraded a West Hillsborough luxury estate with Mitsubishi Diamond Contractor multi-zone ductless system (model MXZ-8C48 with 8 zones) serving a 5,000 sq ft guest house, pool house, and wine cellar. The new system provides independent climate control for each space, operates silently, integrates with whole-estate automation, and the inverter-driven technology reduced energy costs by 36%.

Carolands area Neighborhood

Replaced aging HVAC equipment with triple premium Carrier Infinity variable-speed heat pumps in an 8,500 sq ft Carolands estate. The new 17 SEER2 systems provide sophisticated multi-zone climate control, smart scheduling, precision humidity management, and.

Mitsubishi Electric vertical air handler installed by Galaxy Heating & Air in a closet at a Lower Hillsborough home

Lower Hillsborough Neighborhood

Installed a Mitsubishi Electric vertical air handler in a tight closet at a Lower Hillsborough home. The unit was set with refreshed insulated supply ductwork, new refrigerant line connections, and a clean condensate drain — delivering whisper-quiet, even comfort throughout the estate.

Your Trusted Hillsborough HVAC Experts

Serving Hillsborough with elite manufacturer certifications, comprehensive warranties, and local expertise you can trust.

American Standard Platinum Dealer

Elite certification for exceptional customer care

Diamond Elite Mitsubishi Authorized

Factory-certified installation excellence

5-Year Labor Warranty Included

Every Hillsborough installation protected

BBB A+ & Diamond Certified

Top ratings from Hillsborough customers

Local San Mateo & San Francisco Counties Experts

We live, work, and serve here

Flexible Financing

Affordable payment options available

Why Do Hillsborough Homeowners Choose Galaxy?

24/7 Emergency Service

HVAC emergencies don't wait for business hours. We're available 24/7 to serve Hillsborough residents.

Fast Response Times

Serving Hillsborough and throughout San Mateo & San Francisco Counties with same-day service when you need it most.

NATE-Certified Technicians

Our team is trained, certified, and experienced in servicing all major HVAC brands and models.

Upfront, Transparent Pricing

No surprises. We provide clear estimates before starting any work in your Hillsborough home.

100% Satisfaction Guarantee

We stand behind our work with a complete satisfaction guarantee on all services.

Locally Owned & Operated

We're your neighbors in the Bay Area, committed to exceptional service for Hillsborough residents.

What Hillsborough Customers Say

"I was in a panic when my air conditioning unit broke down during a heatwave in Central Hillsborough. I called Galaxy Heating & Air Conditioning, and they were at my door within the hour. The technician diagnosed the problem quickly and had it fixed in no time. I was so relieved to have my home cool again! Definitely appreciate their prompt service."

Emily R. - Central Hillsborough Homeowner

"Living in West Hillsborough, we depend on our heating during the chilly winter months. When our furnace started making strange noises, I contacted Galaxy Heating & Air Conditioning. They sent someone out the same day, who not only fixed the issue but also performed a thorough maintenance check. He explained everything clearly, and now I feel much more confident about our heating system."

James T. - West Hillsborough Homeowner

"After moving into a beautiful home in Hillsborough Hills, I quickly realized the old HVAC system was draining my energy bills. I reached out to Galaxy Heating & Air Conditioning for a new installation. They helped me choose an energy-efficient model that fits perfectly. The team was professional and respectful of my home. Now, I enjoy the comfort without the crazy bills!"

Sara L. - Hillsborough Hills Homeowner

Top HVAC Products for Hillsborough Homes

Mitsubishi MSZ-GL Mini-Split

Up to 23 SEER

Series: MSZ-GL / MUZ-GL

The most requested ductless system for Hillsborough room additions and older homes. No ductwork, no major construction — quiet and efficient heating and cooling installed in any room.

Installs without ductwork — ideal for older homes
Whisper-quiet indoor unit — minimal disruption to your space
Individual room control — heat or cool only what you use

American Standard Side-Discharge Heat Pump

16 SEER

Model: 5HPL50

Engineered for Hillsborough properties with restricted outdoor space. Side-discharge airflow opens more installation spots — narrow yards, mechanical closets, and enclosed pads all become workable.

Side-discharge airflow — more install location options
2-stage scroll compressor for all-season reliability
Same BTU output as top-discharge units, smaller footprint

American Standard Platinum Heat Pump

20 SEER

Model: 5A6V0X

American Standard's most advanced heat pump, suited for Hillsborough whole-home installs. Fully communicating technology means every component works together for optimized comfort and efficiency.

Fully communicating — system-wide monitoring and control
Variable-speed compressor for whisper-quiet operation
Best efficiency in the American Standard heat pump lineup

Carrier Crossover Series Heat Pump

Up to 26 SEER2

Models: 37MURA / 37MUHA

Versatile heat pump for Hillsborough homes — works as a standalone ductless unit or paired with an existing furnace or air handler. One outdoor unit can serve up to 5 indoor zones.

Dual-fuel compatible — pairs with gas furnace for hybrid operation
MUHA hyper-heat version: rated to 5°F outdoor operation
Up to 5 indoor zones from a single outdoor unit

American Standard Gold 2-Stage AC

17 SEER

Model: 5A7A70

A reliable central air conditioner for Hillsborough homes that already have gas heating. The 2-stage compressor spends most of its time running at low stage — less noise, less energy, better humidity control.

Low-stage cooling on mild days — quieter and more efficient
Multi-speed blower for consistent room-to-room comfort
Works with existing ductwork — no major modifications needed

Lennox SLP99V Variable-Speed Furnace

99% AFUE

Model: SLP99V

Maximum gas efficiency for Hillsborough winters — 99% of every gas dollar becomes heat. Variable-speed blower and modulating valve work together to eliminate the hot-cold cycling of older furnaces.

99% AFUE — highest efficiency in its class
Modulating valve and variable-speed blower work in tandem
Significantly quieter than single- or two-stage furnaces

Common HVAC Questions in Hillsborough

What's the service call fee for HVAC diagnosis in Hillsborough?

Our diagnostic/troubleshooting fee is just $59, and it gets applied toward your repair if you proceed with service. This covers a complete system evaluation by our NATE-certified technicians. We provide upfront pricing before any work begins—no hidden fees or surprise charges. Call (925) 578-3379 to schedule same-day service in Hillsborough.

Do you offer 24/7 emergency HVAC service in Hillsborough?

Yes! Galaxy provides 24/7 emergency HVAC service throughout Hillsborough and San Mateo & San Francisco Counties. Whether your furnace fails on a cold winter night or your AC breaks down during a heat wave, our technicians are available around the clock. We serve all Hillsborough neighborhoods including Central Hillsborough, West Hillsborough, Hillsborough Hills. Call (925) 578-3379 anytime.

What HVAC brands do you install and service in Hillsborough?

We install and service all major HVAC brands including American Standard, Carrier, Lennox, Trane, Rheem, Mitsubishi, Daikin, Bryant, Goodman, and more. As an American Standard Platinum Dealer, we offer premium equipment with exclusive warranties. Our NATE-certified technicians are trained on all makes and models for Hillsborough homes.

When should I schedule HVAC maintenance for my Hillsborough home?

We recommend professional HVAC maintenance twice a year—once before cooling season (spring) and once before heating season (fall). Hillsborough's Peninsula location creates a Mediterranean climate with warm summers reaching 80-90°F and mild winters. Regular maintenance prevents breakdowns, improves efficiency, and extends equipment life. Ask about our maintenance plans for Hillsborough homeowners.

Do you provide free estimates for new HVAC systems in Hillsborough?

Absolutely! We provide free, no-obligation estimates for all new HVAC installations in Hillsborough. Our comfort advisors will visit your home, assess your heating and cooling needs, and recommend the best system for your space and budget. We offer flexible financing options with payments as low as $89/month on approved credit.

How can I finance a new HVAC system in Hillsborough?

We offer flexible financing with convenient monthly payments on approved credit. Whether you're upgrading to a high-efficiency heat pump, replacing an aging furnace, or installing a new AC system, we'll help you find a payment plan that fits your budget. Ask about our 0% interest promotions available to Hillsborough homeowners.

How much do HVAC repairs typically cost in Hillsborough?

Most HVAC repairs in Hillsborough range from $225-$550 for common issues like igniter replacement, capacitor failure, or thermostat problems. More complex repairs involving motors or control boards can run $500-$1,200. Remember, our $59 diagnostic fee gets applied to your repair cost. We always provide upfront pricing before starting work.

What areas around Hillsborough do you serve?

Galaxy Heating & Air Conditioning proudly serves Hillsborough and all of San Mateo & San Francisco Counties, plus the greater Bay Area including Contra Costa, Alameda, San Mateo, Santa Clara, and San Francisco counties. We serve residential and commercial customers with the same commitment to quality. Our San Mateo & San Francisco Counties-based technicians know local homes and climate conditions.

Ready to Get Started in Hillsborough?

Call us today for fast, reliable HVAC service from Hillsborough's most trusted contractor.