4.9/5 — 2,000+ Five-Star Reviews
Air Conditioner Installation
Bay Area's #1 Choice
When your old unit can no longer cope with the heat, a professional installation offers a fresh start for your home’s comfort. Our team provides guidance to help you select a high-efficiency system tailored to your specific needs.
- 7+ Years
- Licensed & Insured
- 24/7 Emergency
- No hidden costs
- Same-day service
- Fully licensed and insured
- 6000+ completed jobs
4.9/5 Rating
2,000+ Reviews
Licensed & Insured
CA Licensed
Same-Day Service
24/7 Emergency
7+ Years
Bay Area Experts
6,000+
Jobs Completed
Simple Process
How It Works
Call Us 24/7
Reach us anytime at
(408) 539-6936.
Same-Day Dispatch
A licensed technician arrives at your home, often same day.
Diagnose & Fix
Upfront pricing before work begins. No hidden fees, ever.
100% Satisfaction
We stand behind every job with our satisfaction guarantee.
Air conditioner installation covers sizing, permitting, and putting in a new cooling system – whether that’s a first AC for a home that’s never had one or a replacement for a unit that’s stopped keeping up. As a licensed home air conditioner installation provider, United HVAC, Plumbing & Electrical installs central, ductless, and split systems across San Jose, Santa Clara, and Cupertino, Campbell, Saratoga and other Bay area cities with the equipment matched to the house rather than sold off a standard package.
What Is Professional Air Conditioner Installation and What Does It Involve?
Professional air conditioner installation service means sizing the system to the home, running any needed electrical work, and securing the permit before equipment goes in – not just setting a unit in place. It’s what separates a system that holds up under a Bay Area summer from one that’s undersized or wired incorrectly from day one.
Types of AC Systems We Install
Professional air conditioner installation service covers several system types, each suited to a different home setup:
- Central air conditioner installation – ties into existing ductwork and cools the whole house through one system; the standard choice where ducts are already in place.
- Ductless air conditioner installation – skips ductwork entirely, a common fix for older San Jose neighborhoods where homes were built without ducts at all.
- Split air conditioner installation / split system air conditioner installation – both describe the same setup: an indoor unit paired with an outdoor condenser.
Signs It’s Time to Replace Your Existing Air Conditioner
A unit struggling to keep the house cool on a hot afternoon, paired with a spike in the summer energy bill, is usually the clearest signal a system is past its useful life. Rattling, short-cycling, or an AC that’s already had two or three repair calls in a season points toward replacement being the better move financially. An air conditioner installation near me search is worth running the moment a system starts costing more to keep alive than a new one would cost to install.
Air Conditioner Installation: How the Process Works
Installation of air conditioner equipment starts with our Home comfort advisor visit. The estiamte runs from 1 to 2 hours. He checks the sizing of the house and discuss the type of the system you would like.
Load Calculation, Equipment Selection, and Permitting
A Manual J load calculation determines the right tonnage for the home before any equipment gets ordered – undersizing a wall air conditioner installation or a central system means it runs constantly and still doesn’t keep up. California Title 24 sets minimum efficiency requirements for new AC installations, and central AC permits require a ECC test inspection to confirm the installed system meets that standard. The permit and inspection happen before the unit goes in, not after.
What Happens on Installation Day
Single zone mini split project can be done in a day. Multi split projects takes 2-5 days depending on the house size and comlexity. The outdoor condenser gets set on a level pad with clearance for airflow, away from windows. Refrigerant lines and electrical connections tie in, and for ductless or split systems, indoor units get mounted per zone before the whole system is charged and tested. A final test cycle confirms cooling output at every register or indoor head before the crew leaves.
Air Conditioner Installation Cost in the Bay Area
$3,500 to $8000 – that’s a single-zone ductless mini-split. Central AC on ductwork that’s already there runs $10 000 to $30000. Need new ductwork or a panel upgrade too? That pushes central AC up to $15000, sometimes $45000 or beyond.
Factors That Affect the Final Price
System tonnage and SEER rating drive most of the cost difference between a base unit and a high-efficiency one. Ductwork condition matters for central AC – usable existing ducts keep the job toward the lower end, while damaged or undersized ductwork adds both labor and material cost. Models of the AC play role as well. United install Mitsubishi, Cooper and Henter, Carrier, Bryant and other systems.
Rebates and Incentives Available to Bay Area Homeowners
California offer a huge range of different reabates in the Bay Area. From San Jose Clean energy to Penincula clean Energy. Some programs offer low interest loans for 5 and 10 years. Eligibility depends on the SEER rating installed and the utility territory the home falls under, and program funding shifts throughout the year. United has a dedicated Permit and rebate division. We confirm current rebate status and paperwork requirements during the initial assessment.
Why Bay Area Homeowners Choose United HVAC, Plumbing & Electrical for Air Conditioner Installation
Getting the permit, the load calculation, and the equipment right the first time is what separates a system that lasts from one that needs a callback within a year. Here’s what backs that up.
Licensed, Insured, and Local
United HVAC, Plumbing & Electrical holds California license #1061226 and carries bonded and insured coverage up to $2M – coverage that extends to commercial air conditioner installation work on multi-unit properties, not just single-family homes. If electrical or refrigerant line work damages property during the install, that’s covered without a separate claim.
7+ Years Installing AC Systems Across the Bay Area
The company has been installing AC systems across San Jose, Santa Clara, and Cupertino, Milpitas, Saratoga, Campbell, Belmont, Palo Alto and other Bay area cities since 2023, covering everything from older homes with no ductwork to newer builds ready for a straightforward central system. That range means a technician has usually sized a system for a home layout similar to yours before.
Upfront Pricing and Same-Day Availability
Every installation includes a written estimate covering equipment, labor, and permit costs before work begins. If something isn’t right after the install, the 100% satisfaction guarantee means we come back and fix it at no charge under the warranty.
Adding AC or replacing an aging system? Call United HVAC, Plumbing & Electrical at (408) 539-6936 – we size, permit, and install same-day across the Bay Area.
100% Satisfaction Guarantee
If you're not completely satisfied with our work, we'll come back and make it right — free of charge. That's our promise to every customer.
Signs You Need Air Conditioner Installation
- System not functioning properly
- Increased energy bills
- Planned upgrades or renovations
- Unusual noises or odors
- Age-related wear and tear
- Water leaks or damage signs
Why Choose United HVAC
- 7+ years of experience
- Same-day service
- 1+ year warranty
- 6000+ completed jobs
- 0% interest financing and discounts
- Fully licensed and insured
- Well reviewed and highly trusted
- No hidden costs
- We work 365 days a year
Got Questions?
Frequently Asked Questions
Central AC runs the whole house off existing ductwork and one thermostat. Ductless skips ductwork altogether – separate indoor units per zone – which tends to be the better fit for a home that never had ducts to begin with.
Yes, ductless mini-splits and through-the-wall units both skip the ductwork question entirely. Cutting new duct runs through walls that are already finished almost never makes sense once a ductless system gets you the same zone-by-zone cooling without the construction mess.
15 or higher is a solid baseline for most homes in the Bay Area – enough efficiency to matter without overpaying for marginal gains. It also opens the door to bigger rebates, which helps offset that higher upfront cost.
Yes.
Yes, for any central AC, ductless, or split system installation. Central AC permits also require a HERS rater inspection to confirm the installation meets California Title 24 energy compliance standards.
Related Services
Other Heating & Air Conditioning Services
Air Conditioner Installation
Expert air conditioner installation for maximum comfort and energy efficiency.
Air Conditioning Repair
Fast, reliable AC repair to restore your cooling system and keep your home comfortable.
Air Conditioning Maintenance
Preventive AC maintenance to extend system life and prevent costly breakdowns.
Heating System Installation
Professional heating system installation for year-round warmth and reliability.
Heating Repair
Fast heating repair services to restore warmth to your home when you need it most.
Heating Maintenance
Scheduled heating maintenance to keep your system running safely and efficiently.
Heat Pump Installation
Energy-efficient heat pump installation for year-round heating and cooling.
Heat Pump Replacement
Professional heat pump replacement with modern, high-efficiency units.
Mini Split Installation & Repair
Ductless mini split installation and repair for flexible zone-based climate control.
Air Filter Installation & Replacement
Air filter installation and replacement to improve air quality and keep your HVAC system running efficiently.
Air Scrubber Installation & Maintenance
Air scrubber installation and maintenance to remove airborne contaminants and enhance indoor air quality throughout your home.
Explore Our Other Services
Heating & Air Conditioning
10 services available
Drain & Sewer
4 services available
Water Heating & Filtration
4 services available
Water Line / Repiping
4 services available
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9 services available
Electrical Services
6 services available
Posted on Google Omied LeleTrustindex verifies that the original source of the review is Google. Pasha (technician) was very helpful. We had a clogged drain and were unable to clear it ourselves. He arrived and fixed the drain and was very clean and polite. Left everything as it was before he arrived. Highly recommend.Posted on Google Liang KatherineTrustindex verifies that the original source of the review is Google. Fantastic service! We really enjoyed working with United plumbingPosted on Google Natalia ShreveTrustindex verifies that the original source of the review is Google. Pasha was very professional he gave us a couple of options and finished the plumbing job very quicklyPosted on Google Just JaniceTrustindex verifies that the original source of the review is Google. As a busy homeowner I truly appreciate their ability to work around my schedule and needs. My garbage disposal recently died, and Neo was professional and offered my different options. He had the parts I needed and was able to complete the job quickly and cleanly.Posted on Google Chaozhong LianTrustindex verifies that the original source of the review is Google. I wholeheartedly recommend United HVAC, Plumbing & Electrical. I recently hired them to replace the original 1961 HVAC ductwork in my house, and they did a wonderful, extremely professional job. I am beyond satisfied with the results. You don't just have to take my word for it--I actually took pictures of their completed work, uploaded them to Google Gemini, and asked the AI to evaluate the installation. Even the AI praised their work, calling it a "top-tier, textbook installation"! (See the screenshots below). During the bidding process, I compared United with another company. United's quote was slightly higher, but choosing them was absolutely the best decision. Their program manager, Tim, was incredibly easy to work with. He quickly identified asbestos tape on my 1961 ducts and insisted we use a C-22 licensed abatement company to remove it safely and provide all the legal documentation for future reference. The other company offered a cheaper route by doing the removal themselves, but for something as dangerous as asbestos, doing it by the book is well worth the minor price difference. I also want to give a massive shoutout to Bair (Bayar) for his exceptional craftsmanship. He is easy-going, friendly, and really listened to all of my concerns. He provided great recommendations on how the new ductwork should be organized, and actually used a machine to fine-tune and balance the air pressure throughout the house. To top it all off, he even carefully reorganized the insulation in my attic after the work was done! It's this kind of attention to detail that makes them stand out. The pictures speak for themselves. If you want true professionals who care about safety, honesty, and quality craftsmanship, go with United HVAC.Posted on Google Chaozhong LianTrustindex verifies that the original source of the review is Google. I highly recommend United HVAC, Plumbing & Electrical! From start to finish, the entire process was incredibly smooth. They handled all the permits and inspections throughout the project, which gave us complete peace of mind. Every single technician we interacted with was friendly, approachable, and truly easy to work with. I specifically want to give a massive shoutout to Max (Aiusha) and Rinat for their wonderful work. Max is super professional and highly skilled. He installed my water heater and water softener with absolute "military precision." I'm the kind of guy who has a lot of weird, specific ideas about how pipes should be routed and extra gadgets I want installed to monitor the system, and Max handled all my requests with total ease. I am also super paranoid about plumbers plowing through studs or structural beams in my 1961 house, but Max was extremely careful and treated my home's structure with the utmost respect. Rinat is also a fantastic plumber. He installed a PRV, a Moen Flo auto-shutoff valve, an RO system, and even replaced some of the old sewage pipes in my house. He really listened to all of my requests and finished the job quickly and professionally. I highly recommend him! Because of their wonderful service, I’ve officially signed up for their company's membership. I am currently working with them to redo my HVAC ductwork, and I will definitely leave another review for that project once it's done. I'm sure they will do a wonderful job there, too!Posted on Google Ritesh BediaTrustindex verifies that the original source of the review is Google. Great service. Loved the professionalism and the way fixed my plumbing problem. I would call them again.Posted on Google Ginger PerngTrustindex verifies that the original source of the review is Google. We had to replace the wax ring on our toilet. Scheduling was easy; pricing was fair (much cheaper than the other quote we got!) Our technician, Melvin, was polite and expedient. This is our second time using United and highly recommend for gas and plumbing services.Posted on Google Joseph MartinTrustindex verifies that the original source of the review is Google. Melvin was great. Fast and efficient.
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Air Conditioner Installation Available In
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