Serving Sunnyvale, CA & Surrounding Areas

HVAC, Plumbing & Electrical Services
in Sunnyvale, CA

United HVAC, Plumbing & Electrical provides residential heating and cooling, plumbing, drain and sewer, water heater, repiping, and electrical services throughout Sunnyvale, CA.
Our licensed team serves homes across Ponderosa, Cherry Chase, Birdland, Lakewood, the Heritage District and surrounding Sunnyvale neighborhoods, with same-day appointments and 24/7 emergency service available.

4.9/5 — 2,000+ Reviews from Bay Area homeowners

⚡ Same-Day Service Available

Need Help in Sunnyvale, CA?

One call does it all — 24/7

  • No hidden costs
  • Same-day service
  • Fully licensed and insured
  • 6000+ completed jobs
Google Rating
5 .9★
Five-Star Reviews
1900 +

4.9/5 Rating

2,000+ Reviews

Licensed & Insured

CA Licensed

Same-Day Service

24/7 Emergency

Since 2019

Serving the Bay Area

6,000+

Jobs Completed

Complete Home Services

Services We Provide in Sunnyvale, CA

One local team for the major systems in your home. We provide HVAC, plumbing, drain and sewer, water heating, repiping, and electrical services throughout Sunnyvale.

Heating & Air Conditioning

  • Air Conditioner Installation
  • Air Conditioning Repair
  • Air Conditioning Maintenance
  • Heating System Installation

Drain & Sewer

  • Cleanout Installation
  • Sewer Line Repair & Replacement
  • Drain Cleaning & Unclogging
  • Camera Inspection for Sewer Line

Water Heating & Filtration

  • Tankless Water Heater Installation & Repair
  • Hybrid Water Heater Installation
  • Gas Tank Water Heater Installation & Repair
  • Whole House Filtration Installation

Water Line / Repiping

  • Leak Detection & Repair
  • Full House Water Repiping
  • Main Shut Off Valve Installation & Replacement
  • Pressure Regulator Valve Installation & Replacement

Plumbing Services

  • Leak Detection
  • Water Pipe Repair
  • Faucet Installation
  • Kitchen Sink Installation

Electrical Services

  • Electrical Panel Inspection & Replacement
  • Electrical Troubleshooting & Repair
  • General Electrician Services
  • Rewiring

Home Services for Sunnyvale Homes

Homes in Sunnyvale can have very different plumbing, HVAC and electrical setups depending on their age, previous upgrades and installed equipment. Our technicians work throughout the city and handle heating and cooling, plumbing, drain and sewer, water heaters, repiping and electrical work.

We start by inspecting the system that is causing the problem. From there, we explain what can be repaired, what may need replacement and what work is actually necessary before anything begins.

Heating & Air Conditioning in Sunnyvale

We provide HVAC repair in Sunnyvale, including AC repair, furnace repair, HVAC maintenance, system replacement, heat pump service and ductless mini-split installation.

If your heating or cooling system is not keeping the home comfortable, runs constantly, produces weak airflow or needs repeated repairs, we can diagnose the problem and explain whether repair or replacement makes more sense.

Plumbing, Drain & Water Systems

Our Sunnyvale plumbing services include leak detection, pipe repair, drain cleaning, sewer service, water heater repair and replacement, fixture installation and whole-home repiping. Recurring backups, low water pressure and hidden leaks often require more than a quick surface repair, so we diagnose the underlying problem before recommending the next step.

Electrical Services & EV Charging

We provide electrical troubleshooting, electrical panel inspection and replacement, rewiring and EV charger installation in Sunnyvale.

Home electrification projects can place additional demand on an older electrical system. Before installing equipment such as a heat pump, heat-pump water heater or Level 2 EV charger, we can check whether the existing panel and circuits have enough capacity.

Permits and Home Upgrades in Sunnyvale

Many residential HVAC, plumbing and electrical projects in Sunnyvale require permits. The City has permit processes for work such as furnace replacement, air conditioner installation, water heater replacement, gas-line work, sewer and water-line replacement, electrical panel work and EV charger installation.

Sunnyvale residents may also qualify for home-electrification rebates through Silicon Valley Clean Energy. Programs can include qualifying heat-pump HVAC systems, heat-pump water heaters and related electrical upgrades. Eligibility and rebate amounts can change, so they should be checked before equipment is purchased.

Serving Neighborhoods Across Sunnyvale

We serve homeowners throughout Sunnyvale, including Ponderosa, Cherry Chase, Birdland, Lakewood, the Heritage District, areas around Ortega Park and Washington Park, and nearby neighborhoods.

If your neighborhood is not listed here, that does not mean it is outside our service area. Contact our team to confirm availability for your address.

Frequently Asked Questions in Sunnyvale

What HVAC services do you provide in Sunnyvale?

We provide AC repair and installation, furnace repair and replacement, HVAC maintenance, heat pump service and ductless mini-split installation throughout Sunnyvale.

Do you offer same-day service in Sunnyvale?

Same-day appointments are available for many HVAC, plumbing and electrical calls, depending on technician availability. We also provide 24/7 response for qualifying emergencies.

Do furnace and air conditioner replacements require permits in Sunnyvale?

Many furnace and air conditioner replacement projects require permits in Sunnyvale. The exact requirements depend on the equipment and scope of work.

Do water heater replacements require a permit in Sunnyvale?

Yes. Residential water heater replacement generally requires a permit in Sunnyvale. Requirements can vary depending on the type of water heater and installation.

Are heat-pump rebates available in Sunnyvale?

Silicon Valley Clean Energy offers incentives for qualifying heat-pump HVAC systems, heat-pump water heaters and some related electrical upgrades. Program rules and rebate amounts can change.

Do EV chargers require a permit in Sunnyvale?

Yes. EV charger installation in Sunnyvale generally requires an electrical permit. Additional requirements depend on the charger, electrical panel and installation location.

Ready to Get Started?

Call now for same-day service in Sunnyvale, CA

Why Us

Why Sunnyvale, CA Homeowners Trust Us

For over 25 years, we've been the Bay Area's most trusted home service company. Our commitment to quality workmanship, honest pricing, and exceptional customer care has made us the go-to choice for Sunnyvale, CA homeowners.

Licensed & Insured

Fully licensed, bonded, and insured for your protection.

Same-Day Service

We dispatch technicians quickly — often the same day you call.

Satisfaction Guarantee

If you're not happy, we make it right. Period.

Upfront Pricing

No hidden fees or surprise charges. You approve the price first.

Call Us Today

Speak directly with our Sunnyvale, CA dispatch team. No robots, no hold music — just real people ready to help.

Available 24/7 • No trip charge • Free estimates

Customer Reviews

What Sunnyvale, CA Residents Say

"United HVAC came out the same day I called. The technician was professional, explained everything clearly, and fixed our AC in under an hour. Highly recommend!"
Sarah M.
Sunnyvale, CA Resident
"We've used United HVAC for plumbing and electrical work. Always on time, fair pricing, and quality workmanship. They're our go-to for everything."
James T.
Sunnyvale, CA Resident
"Called at 10pm for an emergency leak and they were here within an hour. Saved us from major damage. Can't thank them enough!"
Linda R.
Sunnyvale, CA Resident

Emergency Service 24/7 in Sunnyvale, CA

Plumbing, HVAC, or electrical emergency? Don't wait — our technicians respond fast with same-day service.

Average response time: under 60 minutes

Serving the Bay Area

We proudly serve homeowners across the entire Bay Area

Don’t see your city? Call (408)539-6936 to check availability.

Our Service Area

Santa Clara County
San Mateo County