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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+3 more

Serving Stanford, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Duke did a great job at a fair price. We needed AC and decided to replace our old furnace at the same time. In addition Duke wrapped with insulating bubble wrap our old ducts that were exposed. He tied the drip line into our existing downspout in a neat fashion. I'd highly recommend him (he's a fellow submarine vet too!!)."
Heat Pump Repairs & Installations
Central Air Cut-Ins
Electric Furnace Repairs & Installations
Response time1 day
Response rate100%
29 neighbors recently requested a quote
Avatar for Alanis Air HVAC
Alanis Air HVAC
5.0(
18
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair

Serving Stanford, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Warranties offered

"I highly recommend this company to do your heating and air conditioning project. John Alanis and his crew did an excellent job and the pricing he gave us beat the competition. Thank you John and I’ll make sure to spread the word to my friends and relatives."
York Heat Pump
York 3 Ton heat pump
Coil removal
Condenser Removal
Ductwork

+4

Response time3 hrs
Response rate99%
72 neighbors recently requested a quote
Avatar for Valley Heating, Cooling, Electrical and Solar
Valley Heating, Cooling, Electrical and Solar
4.7(
1,755
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+2 more

Serving Stanford, CA and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"I first contacted Valley to get a quote on how much it would cost to get air conditioning installed. I live in an older town home that is approximately 1100 sq. ft. They sent someone out to take a look and see what was involved. He was very professional and explained what was involved including getting permits from the city. He quoted the amount and provided me with an invoice. I contacted them 3 months later to say I was ready for the install. The installation turned out to be quite challenging due to the way my home is constructed, but Valley made it work. The service person had to stay a few hours longer but I wasn't charged anything extra for it. They stuck with the amount of the estimate that was quoted. It's only been a couple of months since the install, but I have to say my only complaint at this point is how cold it gets when I turn on the air. But that's a nice problem to have. :)"
Additional Photos
We provide HVAC sheet metal fabrication, blown in insulation with Owens Corning’s new AttiCat™ Expanding Blown-In PINK FIBERGLAS® and Solatube® installations to add light where you need it without the increasing your electric bill.
The SunSource® Home Energy System puts you in control of your monthly bills by creating and using solar energy, reducing your need for electricity from your utility provider.
Owners, Jeff and Cindy Faulkner
15 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Air & Plumbing Systems Inc.
Air & Plumbing Systems Inc.
4.6(
85
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+1 more

Serving Stanford, CA and surrounding areas

Approved

In business since 2006

Free estimates

Offers commercial services

"Great team! Mark, Sergii and Pavel replaced my furnace and installed an AC. It was a real pleasure to work with them. Mark listened carefully and provided several options for me to choose from. He was also flexible on scheduling the work to match my family needs. Sergii and Pavel performed the installation exactly as planned, kept the house clean, and payed a lot of attention to the aesthetics of the visible parts of the system. They explained to me where they'd run the lines, what were the options and why they preferred one over the other. I'm very happy with the choice of brand and model and with the installation. The team really cares about their customers. Thank you!"
Response time2 hrs
Response rate93%
4 neighbors recently requested a quote
Avatar for Quality Comfort Heating & Air Conditioning
Quality Comfort Heating & Air Conditioning
4.9(
28
)
Central A/C - Service or Repair

Serving Stanford, CA and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"Javier is one of the most professional heating and A/C suppliers I have ever dealt with. He found a way to install A/C in our home with our home, originally built in the late 40's. His work was excellent, in fact my garage was neater when he left then when he first arrived. I most definitely recommend Javier and Quality Comfort"
6 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Rittinger Heating and Air
Rittinger Heating and Air
5.0(
18
)
Central A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Stanford, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

*****669-669-2435*****We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business.

Service maintenance
Service maintenance
Service maintenance
Service maintenance
Service maintenance

+2

22 neighbors recently requested a quote
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Air Conditioning questions, answered by experts

A frozen coil can cause permanent damage to your HVAC system and lead to costly repairs if not fixed. It can cause the unit to overheat and also cause the compressor to fail. It’s vital to turn the unit off if the coil is frozen and address the issue as soon as possible. 

No, a furnace is not the same thing as an AC, or air conditioner, but these are both parts of an HVAC system. They both use air ducts to transport cool or hot air around your home to achieve a comfortable temperature set by your thermostat. An AC runs on electricity, while a furnace can use different fuel sources.

A new HVAC system combines components to control indoor temperature and air quality. Features include a furnace or heat pump and an air conditioner or evaporator coil, depending on the climate requirements. It also involves a network of ductwork for air distribution, a thermostat for temperature regulation, and electrical connections. Air purifiers or humidifiers can be integrated to improve indoor air quality.

To make the most out of your AC, consider implementing the following best practices: 

  • Choose the right size AC for your home to ensure your unit runs as efficiently as possible.

  • Choose a window with shade, as direct sunlight can cause your AC unit to overheat. 

  • Clean or replace the filter at least every two months. 

  • Inspect the AC’s fan and straighten it if necessary. 

  • Discontinue use immediately if you suspect a malfunction, as running the AC while broken can lead to significant issues. 

  • Turn off (or adjust the temperature) when you leave the house.

If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.

The Stanford, CA homeowners’ guide to air conditioning services

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