HVAC Companies in Sunnyvale, California

HVAC All Seasons offers comprehensive HVAC services across the San Francisco Bay Area, including installation, repair, and maintenance for air conditioners, furnaces, heat pumps, boilers, water heaters, and indoor‑air‑quality systems. With over 12 years of experience, the company handles residential and commercial projects, provides 24/7 emergency support, and emphasizes energy efficiency and customer satisfaction.

Same Day Air Conditioning & Heating offers 24/7 emergency HVAC service, covering air‑conditioning, heating, and duct work for residential and light‑commercial clients. Their licensed technicians handle installations, maintenance, and repairs across all makes and models, providing free in‑home estimates and emphasizing energy efficiency and indoor‑air quality improvements for San Francisco Bay Area homeowners.

Balcom Heating & Air provides comprehensive HVAC solutions, including air‑conditioning installation, repair, and routine maintenance. Their technicians handle residential and commercial systems, offer 24/7 emergency support, and perform inspections, tune‑ups, and system upgrades such as thermostats and zoning. Customers note timely service, clear estimates, and thorough follow‑up for homeowners alike.

Spark Heating & Air Conditioning offers residential heating, cooling, heat‑pump, electrical, duct‑cleaning, and plumbing services, including furnace repair, AC installation, and water‑heater replacement. The company operates 24/7, provides free online quotes, and holds a 4.9‑star rating from over 450 Google reviews praising prompt, professional technicians across locations throughout the region.

Air Duct Cleaning Sunnyvale offers residential and commercial duct cleaning, replacement, and dryer‑vent services using modern equipment and trained technicians. They provide customized packages, pre‑service vent testing, and regular follow‑up calls. The site includes service details, a blog, FAQs, and links to Facebook and YouTube for customers seeking reliable maintenance.

Calvey Heating & Air is a licensed, bonded, insured HVAC contractor serving the South Bay and Bay Area. It offers AC installation and repair, mini‑split systems, furnace and heat‑pump service, air‑quality devices, duct fabrication, inspection, cleaning, and dryer‑vent maintenance. Clients note arrivals, duct cleaning and quick furnace fixes. Diamond Certified.

Monteros Heating and Air offers residential and commercial HVAC repair, installation, and preventive maintenance across the Mountain View area. The company works with major brands such as Carrier, Trane, and Mitsubishi, and has earned a 4.9‑star rating from 1,200+ Google reviews. Customers note prompt, professional service and reliable, energy‑efficient solutions.

Plum HVAC offers comprehensive HVAC services, including air‑conditioning, heating, heat‑pump, mini‑split, indoor‑air‑quality, and water‑heater solutions. With over 14 years of experience, the company provides maintenance plans, financing options, and a 5‑star customer rating. Clients praise its professionalism, transparent pricing, and quick, reliable service for residential and commercial properties throughout the Bay Area.

Your Appliance Repair offers same‑day, 24‑hour appliance service across the San Francisco Bay Area, covering refrigerators, washers, dryers, ranges, ovens, dishwashers, air‑conditioners, furnaces, and more. Technicians are licensed, insured, and provide a $95 diagnostic fee, with a 100% repair guarantee and a 24‑hour cancellation policy for customers today.

EVS Mechanical offers Bay Area HVAC services, including heat‑pump, mini‑split, furnace, and AC installation, as well as repair, ductwork, and preventive maintenance. The owner‑led, licensed, bonded, and insured firm serves 15 communities, provides free estimates, same‑day repair callbacks, and handles permits. Customer reviews average 5.0 stars from 49 Google reviews.

Fuse Service provides HVAC, refrigeration, electrical, and plumbing solutions, covering installations, repairs, and maintenance. The site lists detailed service categories, including heat pumps, ductless systems, and EV charger installation. Customer feedback highlights knowledgeable staff, prompt communication, competitive quotes, and reliable workmanship across residential and commercial projects with consistent service quality.

Iris Mechanical offers licensed, insured HVAC services across the Bay Area, covering heat‑pump, ductwork, air‑conditioning, and gas‑furnace installation, maintenance, and repair. With 200+ five‑star reviews, a 1‑3‑year warranty, same‑day repairs, and a $2,000 summer offer, the company emphasizes system design, transparent pricing, and rebates for homeowners seeking reliable comfort solutions.