AC Installation

Top Quality Air Conditioning Installation Services

Whether you are getting your old AC replaced, or installing for the first time, Arizona’s unforgiving climate doesn’t allow experiments. If you are thinking of AC installation services anywhere in Greater Phoenix or Goodyear, go for William’s, a name trusted for 28 years. Our small but efficient team consists of only trained and experienced HVAC technicians. The owner of our company is Goodyear resident Paula Heffelfinger, sister of founder William Young. Paula learned the air conditioning installation services hands-on, having started in 1996. Her years of experience as an HVAC specialist, customer service, and team management have endeared her to our customers and made us a partner of choice for market-leading HVAC brands.


Honesty has always been a policy at William’s. We are not here to push you into buying an expensive system just to get AC installation charges. We have repaired machines more than 10 years old, after a home visit for a free estimate.

Our experienced team of Technicians are located across the Greater-Phoenix area.

Air Conditioning Installation Service Close to Your Home

For a customer faced with an emergency, the worst thing is waiting for half a day for the AC installation service provider to take the call, and then turn up. When you call William’s, a real human voice greets you 24×7. From Monday to Friday, we address your needs within 2 to 4 hours anywhere in Greater Phoenix. Speed matters if the house is freezing cold or burning hot. 


Apart from calls on our customer care number, we also accept online forms. Fill it up with the details of your air conditioner installation requirement, and we will get back to you with a free online estimate.

Experience the Difference with Our Air Conditioner Installation Services

What sets us apart is our staff. William’s team is like friendly neighbors, but with cutting-edge technical know-how.


  • 5 Star ratings on Google and Facebook, 5 Stars from the Home Advisor, and A+  from the Better Business Bureau
  • Well-qualified and trained staff. Our Field Supervisor had graduated as an HVAC engineer. Both our Senior Field Technician and Field Technician are also qualified to work with complex HVAC systems. 
  • Experience matters. Even our Field Technician has 10 years of experience in air conditioning installation across Greater Phoenix and Goodyear.


Feel the difference in service.

Value for Money Air Conditioner Installation

We’ve always prioritized our customers. That is why we are a known and trusted name in a highly competitive industry.


  • Market-leading Brands: Choose from Amana, York, Trane, Goodman, Carrier and more
  • Discount and EMI: Zero interest EMI starting at $85, more discount than showrooms
  • Extended Warranty: 10 years warranty on parts, 2 years on service
  • No Push-Selling: HVAC systems older than 10 years repaired till $300
  • Freebies Galore: Free visit and consultation, free survey and quotation


We know that happy customers are the biggest assets. We guide you towards the best air conditioning installation service within your budget, at your convenient time.

The No-Sweat AC Installation Service

Installing a new AC should neither feel like a massive headache nor drain your pocket. When you call us, Paula herself answers the phone. We always respond with concrete answers to online queries. You can slot our visit according to your convenience and urgency. We keep it simple and old-fashioned: you contact us, we suggest what’s best, get there, and do the job while you relax. No robot voices, no automatic replies, no delays in air conditioner installation services anywhere across all of Greater Phoenix. We stand by the brands we offer, and you get the best pricing because we save on display charges.

Frequently Asked Questions

  • How do I know my AC needs replacement?

    Look for the warning signs: strange or loud noises, failure to start cooling, switching off intermittently, leaking or electric shocks, very high bills, bad smell coming from the AC, and emitting of hot air or taking longer to start cooling.

  • How do I choose the right AC machine?

    Going for the correct AC installation is calculated according to your budget, the area of the space to be cooled, the location in the premise, and the weather of the area you live in.

  • Do you customize air conditioner installation?

    Yes, we actively advise you to choose the right machine best suited to your space, be it residential or commercial.

  • Do you have energy-saving AC options?

    An AC usually gives 10 to 15 years of service, even in our climate. But old machines running on outdated systems can raise energy bills considerably. We offer green AC installation services resulting in less energy consumption and lower emission.

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