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Find Air conditioning pros in Pleasanton

Avatar for DUKES HEATING & AIR CONDITIONING
DUKES HEATING & AIR CONDITIONING
4.8(
135
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Pleasanton, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"

It took 5 days  and went very well.  Jesus and Juan were hard workers and nice to have around. 

When Duke initially evaluated the house, he pointed out some reasons the old furnace system was inadequate and corrected these problems so the house now heats quietly and evenly, which is a nice change.  2 of the air returns were redone and an additional one added to improve circulation. The associated ducts in the attic were upsized which also helped. All the old crawl space duct work was replaced with a modern version and the associated register covers replaced..



"
Heat Pump Repairs & Installations
Central Air Cut-Ins
Electric Furnace Repairs & Installations
Response time1 day
Response rate100%
24 neighbors recently requested a quote
Avatar for Global Comfort Heating and Air
Global Comfort Heating and Air
4.8(
52
)
Central A/C - Service or Repair

Serving Pleasanton, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Global Comfort installed a full HVAC system in my home; 7 new runs for air, new AC unit, new furnace and a new Nest thermostat, all electrical needs. Rudy and his team are respectful, efficient, punctual, competitive in pricing. Rudy walked me through running the system for its first time and explained all the stuff for a brand new system in a house that never had AC. I'm very thankful for the work they did. Highly recommend because their customer service is top notch."
Team Global Comfort Truck
Carrier Heater Changeout
Duct Install securing runs
Duct Install securing runs
Carrier 95% Installation

+9

Response time50 mins
Response rate94%
1 neighbors recently requested a quote
Avatar for Comfort Energy Inc
Comfort Energy Inc
4.6(
120
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+6 more

Serving Pleasanton, CA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Excellent-- we have no complaints at all - - They even provided free a portable room air conditioner unit to help us because we had to wait a few days on a waiting list- this company was so good it was in demand and we were put on a short waiting list"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

Response time1 day
Response rate100%
71 neighbors recently requested a quote
Avatar for Perfect Star Heating , Cooling, & Electrical
Perfect Star Heating , Cooling, & Electrical
4.9(
347
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Pleasanton, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Rave review for Perfect Star Heating & Air Conditioning! Dylan Donzelli was very knowledgeable, thorough & helpful in checking ALL aspects of our heating & air conditioning system! I've now enrolled with them for annual checkups! Diamond Certified, A+ BBB rated, etc. A great company!!"
Lead Install Tech Gilbert Caceres w/New AC Install
Lead Install Tech Gilbert Caceres w/New AC Install
New Furnace Installation
Lead Installers David & Gill on the Job.
Lead Installer David Mendoza hard at work.

+8

Response time4 hrs
2082 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Up & Above Heating & Cooling Services
Up & Above Heating & Cooling Services
4.8(
12
)
Central A/C - Service or RepairCentral A/C - Install

Serving Pleasanton, CA and surrounding areas

Approved

In business since 2014

Free estimates

Small jobs welcome

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!\n

damage duct
damage duct
old hard metal no insulation and air leak
old hard metal
broken duct

+36

Response time2 days
Response rate90%
11 neighbors recently requested a quote
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
721
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+12 more

Serving Pleasanton, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"The cost to replace three natural gas wall heater was slightly less than Gree mini-splits heater cooler. The installers were courteous and professional. Delayed several days as the equipment haven’t arrived yet. Job cost as agreed, but took half day longer due to the complexity of installation. Results are excellent. The mini-split units works as specified. Will use Albert Nahman heating plumbing again in the future."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate100%
43 neighbors recently requested a quote
Avatar for Comfort Energy, Inc.
Comfort Energy, Inc.
4.3(
251
)
Ductless Mini-split A/C - Install or Replace

Serving Pleasanton, CA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Very professional company! Carlos fully explained all of my options for central air and heating. The work was started as promised. Daniel,Ariel,Mike and German did the installation. They were respectful of my time and property, cleaning up after themselves along the way. David stopped by from time to time to make sure that I was happy with the progress, and he arranged for the final city inspection. Top notch company! Thank you"
COMFORT ENERGY AWARDS
Our Comfort Energy Team
COMFORT ENERGY AWARDS
Best of Milpitas 7 Years in a Row! 2015 - 2022
Angie's List A Rating

+27

Response time1 day
200 neighbors recently requested a quote
Recommended by93%of homeowners
...
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FAQs for air conditioning projects in Pleasanton, CA

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.

The Pleasanton, CA homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.