
Serving Glendale, AZ and surrounding areas
Approved
In business since 2008
Free estimates
Credit card accepted
"I have used them for other plumbing issues and an central air conditioner repair. I am very happy with the work."





+91


Serving Glendale, AZ and surrounding areas
Approved
In business since 2008
Free estimates
Credit card accepted
"I have used them for other plumbing issues and an central air conditioner repair. I am very happy with the work."





+91

Serving Glendale, AZ and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"I conducted a lot of research prior to hiring Air Factor, and obtained bids from 6 different contractors. Air Factor was the ONLY company to calculate the size of my home to determine the appropriate size of the AC unit to properly cool my home. They were VERY thorough on the initial visit - spending 2 hours with me. Tim had a great presentation put together, including reviews from customers, insurance information, and BBB ratings/reviews (ZERO complaints by the way). The detailed information he provided built trust in the contractor. I would use them again in a heartbeat, and will definitely recommend them to my friends and family."





+5

Serving Glendale, AZ and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Free estimates
Customers say: Quick response
"Sergio had to come back to level the air conditioning unit but everything is fine and he did excellent work"





+41

Serving Glendale, AZ and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"We highly recommend Sinclair Air LLC for any A/C repairs. Sinclair Air was referred by my husbands brother. We called Troy today to see if he could give us an estimate on a high pressure line leak repair, clearing our lines, and replacing refrigerant. Efficient Air in Estrella Mountain Ranch gave us an estimate for this repair of $3,200.00, Troy charged us $750.00. We will continue to use Sinclair Air LLC, and HIGHLY recommend their services. It's almost 9pm and Troy is still outside in the dark working. What an amazing company.😍🤩"

Serving Glendale, AZ and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Emergency services offered
"Our air conditioning stopped working so we called Absolute Comfort. They had an appointment available the same day which was great! Rob Tavolacci from Absolute Comfort fixed our unit after a few hiccups with the our furnace not working. He was very professional, friendly, explained what the problems were and gave us advice on fixing it. Would definitely recommend! Thank you!"





+8

Serving Glendale, AZ and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Had some trouble with my AC and Jay came out and did an excellent job diagnosing what exactly was wrong, explaining all the information and options. Great work all around."





+1

Serving Glendale, AZ and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"Richies Heating, and Cooling Company, Emery Heating, Cooling Solar, Llc, was highly recommended by Scott my friend. They came over the next day in 95 degree weather, worked very hard, and finished it the same day. They replaced the unit, installed the thermostat, electrical unit, had to climb up into the attic in the hot weather replaced the insulation , drain pipe and duct work , etc. The house is cool, and I highly recommend them.!!"

Serving Glendale, AZ and surrounding areas
Approved
In business since 2016
Free estimates
Credit card accepted
"Lou contacted me shortly after I entered my info on the Home Advisor site. He came to evaluate the problem the next afternoon, as I was out of town when he contacted me. Lou was able to fix both of my out of service units and restore my air conditioning. My system is 15 - 17 yrs old. When I need a new system I'll contact Lou to hook me up. He was honest and knowledgeable.. Dr Michael Bush - Chandler, AZ"





+72

Serving Glendale, AZ and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"After a sleepless night (too hot) with little AC, I put in a request for AC service with Angi. Within seconds of completing my request, one hour Heating and Air Conditioning reached out. I scheduled service for a few hours later that same day. Cody came out and worked on the system for around two hours to resolve our issue. He stayed long enough to insure the system was working as it should. Upon completion I was expecting a fairly large bill for the service but was delighted to find I could sign up for regular service for a small fee. Everything is working great and we are happy and Cool!"





Serving Glendale, AZ and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Emergency services offered
"Otter Air Conditioning rep Michael came to fix the AC THE SAME DAY = WOW. Fixed it very fast and answered all my questions. Excellent service. Highly recommend."
Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.
Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.
Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.
Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.
Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.
From average costs to expert advice, get all the answers you need to get your job done.

Use this guide to budget for appliance installation costs based on factors such as appliance type, installation complexity, labor rates, and more.

Explore how factors such as materials, local labor rates, and the type of damage affect the cost to repair a burst pipe.

Use this guide to learn how much rebar costs per foot so you can budget for your next big home improvement project.

Discover how factors such as linear footage, local labor rates, and trim type affect the total cost of painting baseboards.

Learn how much cat or dog door installation costs based on factors like the door size, material, location, and added features.

Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.