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Heating and Air Conditioning Services in Sunnyvale, CA
Expert Heating, Cooling & Air Quality Solutions
Quick Answers About Sunnyvale HVAC Services
Get instant answers to the most common questions
What HVAC services does Galaxy offer in Sunnyvale?
We provide complete HVAC services in Sunnyvale 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 Sunnyvale neighborhoods.
How quickly can Galaxy respond to service calls in Sunnyvale?
We offer same-day service throughout Sunnyvale 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 Sunnyvale?
Yes! We proudly serve every neighborhood in Sunnyvale and throughout Santa Clara County. Our Sunnyvale-based technicians are familiar with local housing types, climate conditions, and the unique HVAC needs of Sunnyvale homes and businesses.
What makes Galaxy the best HVAC contractor in Sunnyvale?
Galaxy stands out in Sunnyvale 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 Sunnyvale 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 Sunnyvale?
Sunnyvale bridges two eras of Silicon Valley history — the aerospace and defense industry legacy of Moffett Field and Lockheed, and the software and semiconductor economy that now defines the city's character as home to LinkedIn, Yahoo, and dozens of other major tech companies. The residential neighborhoods reflecting both eras have their own HVAC stories: post-WWII ranch homes built for the aerospace workforce now ready for comprehensive heat pump upgrades, and newer tech-era developments where homeowners want smart, efficient, connected systems. Galaxy Heating & Air Conditioning serves both.
We serve Sunnyvale across its diverse residential and commercial geography: Sunnyvale Estates and Ponderosa Park established neighborhoods with mid-century homes ready for heat pump upgrades; Heritage District historic properties where installation approach respects original character; Lakewood Village and Cherry Chase families in 1960s–1970s construction exploring their first heat pump; newer developments near Lawrence Expressway where modern construction gets variable-speed optimization; and the significant commercial landscape of tech campuses, office parks, and the Sunnyvale Downtown redevelopment zone.
Sunnyvale's inland South Bay position creates warm, sunny summers — regularly reaching 88–95°F — that make reliable cooling genuinely important. For the city's substantial stock of 1950s–1970s ranch homes, many still running original or near-original HVAC systems, the heat pump upgrade delivers a transformation: modern cooling performance for Sunnyvale's warm summers, efficient all-electric heating for mild winters, smart thermostat integration for tech-comfortable homeowners, and energy savings that typically run 35–45% versus the systems being replaced.
Sunnyvale homeowners qualify for We provide detailed energy modeling showing projected savings. Free estimates, upfront pricing, flexible financing. Commercial HVAC available throughout the city. Same-day service, 24/7 emergency availability. Call (925) 578-3379.
Why Trust Galaxy for Sunnyvale HVAC Service?
Sunnyvale's housing includes established post-war neighborhoods, iconic Eichler homes with radiant floors and post-and-beam construction, and newer developments near tech campuses. Many homeowners are upgrading to efficient heat pumps that deliver powerful cooling during Sunnyvale's warm summers while operating efficiently year-round. Eichler homes especially benefit from ductless heat pumps that preserve their architectural character while providing modern comfort.
We serve Sunnyvale's tech-focused commercial sector, including corporate campuses in Moffett Park, downtown retail and restaurants, office buildings, medical facilities, and data centers. Our commercial team handles rooftop units, multi-zone systems, server room cooling, and precision climate control with 24/7 emergency support.
Sunnyvale's Silicon Valley location creates warm summer temperatures-routinely reaching 85-95°F from June through September, often hotter than coastal areas. This makes efficient air conditioning essential for comfortable living and productive home offices. We recommend modern variable-speed heat pumps that deliver powerful cooling during warm weather while operating efficiently year-round. These systems also handle Sunnyvale's mild winters perfectly, often eliminating the need for a separate gas furnace and reducing both energy costs and carbon emissions.
Areas We Serve:
Which HVAC Services Are Available in Sunnyvale?
Click on any service below to learn more about how we can keep your Sunnyvale home comfortable year-round.
Furnace Repair
Expert furnace diagnostics and repair to restore your heating. Same-day service for all furnace brands serving Sunnyvale's climate.
AC Repair
Fast, same-day air conditioning repair for all makes and models. Essential for Sunnyvale's warm summer temperatures.
Heat Pump Repair
Professional heat pump repair for efficient year-round comfort. Expert diagnostics and repairs for American Standard, Mitsubishi, Carrier, and Lennox systems.
Furnace Installation
High-efficiency furnaces from American Standard, Carrier, and Lennox up to 98% AFUE for reliable warmth in Sunnyvale's mild winters. Proper sizing and installation for maximum efficiency.
AC Installation
High-efficiency air conditioning systems from top brands for Sunnyvale homes. Variable-speed cooling designed for optimal energy savings.
Heat Pump Installation
All-electric heating and cooling with premium heat pumps from American Standard, Mitsubishi, Carrier, and Lennox. Perfect for Sunnyvale's climate with energy savings up to 50%.
24/7 Emergency HVAC in Sunnyvale
Heating or cooling failure? We respond fast — day, night, and weekends.
Pricing & Options
Better Comfort
2-stage systems (Carrier & American Standard) – dependable performance for Sunnyvale
Best Comfort
Variable-speed systems (Lennox, Carrier, American Standard) – superior comfort & efficiency
Ductless Systems
Perfect for Eichler homes, ADUs, and home offices
Recent Sunnyvale Installations
Cherry Chase Neighborhood
Installed a Carrier variable-speed heat pump system (model Infinity 17VS with smart thermostat) in a 2,100 sq ft Cherry Chase home. The new 17 SEER2 system replaced a 14 SEER AC and old furnace, providing efficient cooling during Sunnyvale's warm summers, app-based control, quieter operation, and reducing energy costs by approximately 39%..
Lakewood Neighborhood
Replaced an aging 13 SEER AC with a high-efficiency 20 SEER2 American Standard AccuComfort variable-speed heat pump in a 2,200 sq ft Lakewood home. The old system struggled during Sunnyvale's hot summer days. The new heat pump maintains consistent comfort, operates significantly quieter, and the homeowner reports 36% lower cooling costs.
Fairwood Neighborhood
Installed a Mitsubishi ductless multi-zone system (model MXZ-3C30 with 3 zones) in a classic Eichler home in Fairwood. The home's post-and-beam architecture and radiant floors made traditional ductwork impractical. The new inverter-driven system provides efficient heating and cooling, independent room control, preserves the home's iconic mid-century design, and reduced energy costs by 35%.
Ponderosa Neighborhood
Installed a new high-efficiency gas furnace in the attic at a Ponderosa Sunnyvale home as part of a complete heating system upgrade. The horizontal-mount unit was set on a fresh equipment platform with code-compliant gas, electrical, and venting connections, plus refreshed insulated supply ductwork — delivering quiet, even heat throughout the home.
Cherry Chase Neighborhood
Installed a Mitsubishi Electric single-zone heat pump alongside a Mitsubishi Smart Multi multi-zone outdoor unit at a Cherry Chase Sunnyvale home. The two inverter-driven systems were set on fresh pads with a clean shared refrigerant line chase and code-compliant electrical disconnects — delivering whisper-quiet, room-by-room comfort throughout the home.
Your Trusted Sunnyvale HVAC Experts
Serving Sunnyvale 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 Sunnyvale installation protected
BBB A+ & Diamond Certified
Top ratings from Sunnyvale customers
Local Santa Clara County Experts
We live, work, and serve here
Flexible Financing
Affordable payment options available
Why Do Sunnyvale Homeowners Choose Galaxy?
24/7 Emergency Service
HVAC emergencies don't wait for business hours. We're available 24/7 to serve Sunnyvale residents.
Fast Response Times
Serving Sunnyvale and throughout Santa Clara County 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 Sunnyvale 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 Sunnyvale residents.
What Sunnyvale Customers Say
"I live in Cherry Chase, and when my A/C broke down during the heatwave last summer, I was in a panic. Galaxy Heating & Air Conditioning came to the rescue! They were super responsive and had my system up and running in no time. I was so relieved not to have to endure another day in the sweltering heat. Their technicians were friendly and efficient!"
"Our heating system in West Sunnyvale was ancient and barely working last winter. After doing some research, I called Galaxy Heating & Air Conditioning for an installation quote. They helped me choose a new system that fit our home and budget perfectly. The installation went smoothly, and now our home is warm and cozy! I can already tell my energy bills are lower too."
"Living in Lakewood means dealing with those chilly winters, and my furnace decided to quit just as the temperature dropped. I reached out to Galaxy Heating & Air Conditioning, and they provided outstanding service. They diagnosed the issue quickly and had the needed parts on hand. I was impressed by how knowledgeable they were. Now my home is nice and toasty again!"
Top HVAC Products for Sunnyvale Homes
American Standard Platinum Heat Pump
20 SEERModel: 5A6V0X
Our flagship heat pump for Sunnyvale homes. Fully communicating system pairs with Platinum air handlers for precise, variable-speed comfort year-round.
American Standard Side-Discharge Heat Pump
16 SEERModel: 5HPL50
Built for Sunnyvale homes where outdoor space is tight. Side-discharge airflow opens up installations in narrow side yards, enclosed pads, or mechanical closets.
American Standard Gold 2-Stage AC
17 SEERModel: 5A7A70
A smart upgrade for Sunnyvale homes with existing gas heat. The 2-stage compressor runs at low stage most of the time — quieter, more efficient, and better humidity control than single-stage units.
Carrier Crossover Series Heat Pump
Up to 26 SEER2Models: 37MURA / 37MUHA
Carrier's ductless crossover heat pump for Sunnyvale homes. Pairs with a gas furnace or air handler for a hybrid system — or installs standalone for garages and room additions.
Mitsubishi MSZ-GL Mini-Split
Up to 23 SEERSeries: MSZ-GL / MUZ-GL
A reliable, cost-effective ductless solution for Sunnyvale rooms, garages, and additions. Quiet inverter-driven cooling and heating with no ductwork required.
Lennox SLP99V Variable-Speed Furnace
99% AFUEModel: SLP99V
The most efficient gas furnace we install — 99 cents of every gas dollar goes directly to heat. A top choice for Sunnyvale homeowners who want to maximize gas savings during winter.
Common HVAC Questions in Sunnyvale
How often should I have my HVAC system serviced in Sunnyvale?
We recommend professional HVAC maintenance twice a year—once before cooling season (spring) and once before heating season (fall). Sunnyvale's Silicon Valley location creates warm, dry summers with temperatures regularly reaching 85-95°F, while winters are mild and moderate. Regular maintenance prevents breakdowns, improves efficiency, and extends equipment life. Ask about our maintenance plans for Sunnyvale homeowners.
Can I get a free quote for heating and cooling installation in Sunnyvale?
Absolutely! We provide free, no-obligation estimates for all new HVAC installations in Sunnyvale. 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.
What financing options are available for HVAC systems in Sunnyvale?
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 Sunnyvale homeowners.
What should I expect to pay for heating or AC repair in Sunnyvale?
Most HVAC repairs in Sunnyvale 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.
Does Galaxy provide HVAC service near Sunnyvale?
Galaxy Heating & Air Conditioning proudly serves Sunnyvale and all of Santa Clara County, 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 Santa Clara-based technicians know local homes and climate conditions.
How much does HVAC diagnostic service cost in Sunnyvale?
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 Sunnyvale.
Is emergency heating and cooling service available in Sunnyvale?
Yes! Galaxy provides 24/7 emergency HVAC service throughout Sunnyvale and Santa Clara County. 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 Sunnyvale neighborhoods including West Sunnyvale, Cherry Chase, Lakewood. Call (925) 578-3379 anytime.
Which heating and cooling brands does Galaxy work with in Sunnyvale?
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 Sunnyvale homes.
HVAC Services in Cities Near Sunnyvale
Galaxy serves all of Santa Clara County. Browse our full lineup of heating, cooling, and heat pump services in nearby communities.
We Also Serve Cities Near Sunnyvale
Contra Costa County
San Mateo & SF Counties
- › Atherton
- › Belmont
- › Burlingame
- › Daly City
- › Foster City
- › Hillsborough
- › Menlo Park
- › Millbrae
Ready to Get Started in Sunnyvale?
Call us today for fast, reliable HVAC service from Sunnyvale's most trusted contractor.