Top 10 HVAC Companies in Los Altos, CA

Porch Pro Headshot COMFORT ENERGY INC.
HVAC Contractors
Serves Los Altos, California
(696)
As a third generation heating and air technician and retired 20 year veteran of fire and public safety, I wanted to create a service company that you could count on for its integrity and professionalism. When our service technicians arrive at your home, we want you to feel the same level of confide...Read more about COMFORT ENERGY INC.
As a third generation heating and air technician and retired 20 year veteran of fire and public safety, I wanted to create a service company that you could count on for its integrity and professionalism. When our service technicians arrive at your home, we want you to feel the same level of confide...Read more about COMFORT ENERGY INC.
Porch Pro Headshot Air Duct Cleaning San Mateo
HVAC Contractors
Serves Los Altos, California
(626)
"Very punctual and professional!!! They offered a range of tasks they could do and suggested some great tips to me. They thoroughly cleaned up afterward and I would refer them to anyone who requires this to be done. Great job!"
"Very punctual and professional!!! They offered a range of tasks they could do and suggested some great tips to me. They thoroughly cleaned up afterward and I would refer them to anyone who requires this to be done. Great job!"
Porch Pro Headshot Air Duct Cleaning Palo Alto
HVAC Contractors
Serves Los Altos, California
(662)
Excellent air vent cleaning company serving in Palo Alto, California. Conducts emergency air duct cleaning and air quality testing for urgent situations.
Excellent air vent cleaning company serving in Palo Alto, California. Conducts emergency air duct cleaning and air quality testing for urgent situations.
Porch Pro Headshot Sunny Appliance Repair
HVAC Contractors
Serves Los Altos, California
(606)
Porch Pro Headshot A-1 Heating and Cooling
HVAC Contractors
Serves Los Altos, California
(395)
Description: Family Owned and Operated HVAC Contractor that has had the privilege of servicing the Bay Area and surrounding area's since 1983. We specializes in all phases of Residential and Commercial Heating & Air conditioning, Rain Gutters, and Home Performance. We work with homeowners and Genera...Read more about A-1 Heating and Cooling
Description: Family Owned and Operated HVAC Contractor that has had the privilege of servicing the Bay Area and surrounding area's since 1983. We specializes in all phases of Residential and Commercial Heating & Air conditioning, Rain Gutters, and Home Performance. We work with homeowners and Genera...Read more about A-1 Heating and Cooling
Porch Pro Headshot Reliable Air Mechanical
HVAC Contractors
Serves Los Altos, California
(224)
Reliable Air Mechanical is a licensed, bonded and fully insured HVAC contractor specializing in maintenance, service, construction, and installation of furnaces and central AC units as well as duct repair and installation. We are a mechanical contractor providing the complete spectrum of comfort pr...Read more about Reliable Air Mechanical
Reliable Air Mechanical is a licensed, bonded and fully insured HVAC contractor specializing in maintenance, service, construction, and installation of furnaces and central AC units as well as duct repair and installation. We are a mechanical contractor providing the complete spectrum of comfort pr...Read more about Reliable Air Mechanical
Porch Pro Headshot Go Green Restoration Cleaning
HVAC Contractors
Serves Los Altos, California
(40)
You can count on Go Green Restoration Cleaning in Suitland, MD to properly complete your carpet and upholstery cleaning tasks because they hold a wonderful A+ rating from the BBB (as of January 2018).
You can count on Go Green Restoration Cleaning in Suitland, MD to properly complete your carpet and upholstery cleaning tasks because they hold a wonderful A+ rating from the BBB (as of January 2018).
Porch Pro Headshot B Green Service
HVAC Contractors
Serves Los Altos, California
(38)
B Green Service is a family-owned & operated, serving both residential and commercial needs of California residents. We offer quality service at a price you can afford with no hidden or surprise costs. Our customers can be assured that when you work with B Green Service, whether it is regarding a...Read more about B Green Service
B Green Service is a family-owned & operated, serving both residential and commercial needs of California residents. We offer quality service at a price you can afford with no hidden or surprise costs. Our customers can be assured that when you work with B Green Service, whether it is regarding a...Read more about B Green Service
Porch Pro Headshot A Plus General Contractors, Inc.
HVAC Contractors
Serves Los Altos, California
(28)
We've grown a lot since we opened our doors 15 years ago. Today, we have 25 skilled technicians able to meet all your comfort needs - every season of the year. We've become one of the best and most reputable air conditioning companies in Southern California. And our Trane Comfort Specialist™ Dealer ...Read more about A Plus General Contractors, Inc.
We've grown a lot since we opened our doors 15 years ago. Today, we have 25 skilled technicians able to meet all your comfort needs - every season of the year. We've become one of the best and most reputable air conditioning companies in Southern California. And our Trane Comfort Specialist™ Dealer ...Read more about A Plus General Contractors, Inc.
Porch Pro Headshot Alert Plumbing, Inc.
HVAC Contractors
Serves Los Altos, California
(12)
"Raul and his company did a super great job on our re plumbing project by replacing galvanized pipes to cooper, gas lines, changing faucets, showers valves, utility sink, and bathtubs. They provided top quality materials, labor and services by showing on time, responsible, reliable and extremely aff...Read more about Alert Plumbing, Inc.
"Raul and his company did a super great job on our re plumbing project by replacing galvanized pipes to cooper, gas lines, changing faucets, showers valves, utility sink, and bathtubs. They provided top quality materials, labor and services by showing on time, responsible, reliable and extremely aff...Read more about Alert Plumbing, Inc.

Top questions to ask before hiring an hvac company

What type of insurance do you have? Heating, ventilation and air conditioning (HVAC) professionals work on a variety of mechanical areas of the home. You'll want to ask specific questions regarding professional training and licensing, as well as what types of insurance they have (for example, mold, air pollution or worker's compensation). It's fair to ask for the dollar amounts they are covered and a quality professional will show you verification of coverage.

HVAC professionals attend to a home's thermal needs as well as air quality. Because of the technical aspects of HVAC work, find out the scope of work your professional can perform. You may only need your heating unit serviced however, if this professional also specializes in energy efficiency, mold assessment, or offer ways for you to save on energy costs, you may want to hire them for future projects. Because some equipment is gas-powered, your professional should be able to answer questions about installing gas lines and permitting.

Ask about guarantees on labor or warranties on parts for your HVAC project. It's common to have a time limitation on parts and equipment. Save any paperwork related to your project so you can refer back to instruction manuals or serial numbers.

When working with a heating and cooling professional, ask if their company offers pricing incentives to encourage you to hire them on a regular basis. It's common to have your equipment inspected and serviced at least once a year. Your HVAC company may also offer special pricing on filters, ventilation cleaning or energy assessments.

Regardless of the scope of your project, find out what you need to do to prepare your home for their visit. For example, the HVAC professional will need access to the areas in question and may need access to other mechanical or ventilation points. Make sure pets and children are kept out of the way. Ask if your project will involve removing dry wall or making any other structural changes – you may need to hire a professional drywall contractor to patch up HVAC work. If you are adding a unit that may contribute to carbon monoxide within the home, find out if you need to purchase a carbon monoxide detector.

Recent reviews for Los Altos HVAC Contractors

178730

DON’T GIVE A-1 HEATING AND COOLING YOUR BUSINESS Groupon had an offer for $51 air conditioner maintenance from A-1 Heating and Cooling. The tech looked at the A/C unit and said it was fine. (He didn’t even turn on the unit) I asked if he was going to do a...

- Kelley Marin
51297

Extremely Expensive

- ravi laxman
76194

Not punctual with appointments, made me wait for 3 hours and no call. I had to call to figure out what happened. Came the next day, quote was ridiculously expensive. $200 per faucet replacement. Not worth it

- Raja Hala
39763

Unfortunately I'm unable to recommend Alert Plumbing. I had a backed up sewer line due to roots. The plumber didn't bring the right equipment to cut the roots out. Three weeks later, they needed to come out again for the same issue and they still didn't b...

- Jason Weber
29288

They did a good job installing my new bathtub. Went the extra mike, and installed the shower doors too.

- Raymond Yen
31090

no job done . Job was to small for them to do . Walked in looked at it and walked out with

- Sharon White
25307

This guy called and was rude on the phone from the start , so I told him to fogey it

- Roger Savedra
40040

Excellent. I hired them to replace a 40+ year old home furnace. I would definitely recommend them to family and friends. They were prompt, expert, and completed the work very professionally.

113109

Great insulation services ! 1000sq. R-38 insulation in just 1 day !!!

- Idan Hadida
66027

Everything You Need to Know About Los Altos HVAC Companies

Who should I hire if I need HVAC in Los Altos?

Right now there are about 50 companies in and around Los Altos ready to help you with your hvac project.

    Below we've listed a few of the top HVAC Contractors on Porch:

    • smart72
      • Air Duct Cleaning Belmont
        • Air Duct Cleaning Redwood City

          Can I browse unscreened HVAC Contractors in Los Altos?

          We do our best to screen all of our hvac contractors. However, there are still some hvac contractor professionals in Los Altos that have not been pre-screened. This means that their licenses may not be up to date to operate in Los Altos or CA. Always be sure to pre-screen them yourself before hiring. Here are some unscreened professionals offering hvac:

          • Alternative HVAC Solutions, Inc.:
            • BBB Rating: A+
            • Active/Verified License: No, current status is inactive
          • BARLOW'S REFRIGERATION CO.:
            • Active/Verified License: No, current status is inactive
          • Cold Craft, Inc. Heating, Cooling and Refrigeration:
            • Active/Verified License: No, current status is inactive

          How does invoicing/payment work for most HVAC Contractor projects in Los Altos?

          Every project differs, but you should ask any hvac contractor for an estimate, before they do any work. In fact, ask for their general payment terms before any hvac work is done.

          If the job is large and going to take longer than a day, it's common practice for hvac contractors to request a down payment. Usually, this will be around 25% so they can commence work on your hvac contractor project.

          If it's a quick job, you'll likely be given an invoice/bill when the job is complete. Then it's up to you and the hvac contractor to determine if you pay immediately or can send payment at a later date.

          All HVAC Companies in Los Altos, CA

          Porch Pro Headshot Air Duct Cleaning Belmont
          HVAC Contractors
          Serves Los Altos, California
          (5)
          "It was obvious that we were losing energy and thought of checking the air ducts. This air duct cleaning company was recommended by a friend who had hired these guys a while back. We called to ask some questions and appreciated that this guy took the time to explain several things. Another guy showe...Read more about Air Duct Cleaning Belmont
          "It was obvious that we were losing energy and thought of checking the air ducts. This air duct cleaning company was recommended by a friend who had hired these guys a while back. We called to ask some questions and appreciated that this guy took the time to explain several things. Another guy showe...Read more about Air Duct Cleaning Belmont
          Porch Pro Headshot SS Furnace and Air Repair
          HVAC Contractors
          Serves Los Altos, California
          (17)
          SS Furnace and Air Repair Mountain View is here to make you and your family more comfortable and create a healthy home environment. Our service technicians are licensed and insured with high moral and ethical values. We specialize in residential heating systems and protect your home before, during, ...Read more about SS Furnace and Air Repair
          SS Furnace and Air Repair Mountain View is here to make you and your family more comfortable and create a healthy home environment. Our service technicians are licensed and insured with high moral and ethical values. We specialize in residential heating systems and protect your home before, during, ...Read more about SS Furnace and Air Repair
          Porch Pro Headshot Reaco Heating & AC
          HVAC Contractors
          Serves Los Altos, California
          (6)
          REACO Heating & Air Conditioning has extensive, long term experience in the bay area/peninsula residential and commercial HVAC and architectural sheet metal market, having capably served many contractors, developers and home owners over the course of our 21 year history. We are so confident in our ...Read more about Reaco Heating & AC
          REACO Heating & Air Conditioning has extensive, long term experience in the bay area/peninsula residential and commercial HVAC and architectural sheet metal market, having capably served many contractors, developers and home owners over the course of our 21 year history. We are so confident in our ...Read more about Reaco Heating & AC
          Porch Pro Headshot Healthy Duct  HVAC Services
          HVAC Contractors
          Serves Los Altos, California
          (5)
          "I have had issues with my Furnace, the heat is not distributed evenly across the house! And, heating up a house, in SF is $$$. I decided to call in the pros, to see what can be done! I spoke with Osi, the owner, she sent Sam over the following day!!! He was very nice, and professional, he worke...Read more about Healthy Duct HVAC Services
          "I have had issues with my Furnace, the heat is not distributed evenly across the house! And, heating up a house, in SF is $$$. I decided to call in the pros, to see what can be done! I spoke with Osi, the owner, she sent Sam over the following day!!! He was very nice, and professional, he worke...Read more about Healthy Duct HVAC Services
          Porch Pro Headshot All Weather Heating, Air & Solar
          HVAC Contractors
          Serves Los Altos, California
          (2)
          "As a Real Estate Broker, I have found All Weather to do the work necessary on time, correct the first time and at at reasonable price. My clients have been very happy with the repairs and service needed."
          "As a Real Estate Broker, I have found All Weather to do the work necessary on time, correct the first time and at at reasonable price. My clients have been very happy with the repairs and service needed."
          Porch Pro Headshot UBERSUB, LLC
          HVAC Contractors
          Serves Los Altos, California
          (1)
          "We wanted to do a small addition, kitchen and two small bathrooms. Mary at UberSub was able to introduce to us to two contractors that we could choose from - saved us time. We ended up using Kenny from Kennycross Construction. He is nice and quick. Reasonable pricing and very attentive. The best pa...Read more about UBERSUB, LLC
          "We wanted to do a small addition, kitchen and two small bathrooms. Mary at UberSub was able to introduce to us to two contractors that we could choose from - saved us time. We ended up using Kenny from Kennycross Construction. He is nice and quick. Reasonable pricing and very attentive. The best pa...Read more about UBERSUB, LLC
          Porch Pro Headshot Mountain View Auto and Truck
          HVAC Contractors
          Serves Los Altos, California
          (12)
          Mountain View Auto and Truck is specialized Auto Repair Shop in Mountain View, CA.We also offer auto brakes,suspension,timing belt.Take advantage of our professional services now. Auto Repair Service, Auto Engine Repair, Auto Maintenance, Transmission Repair Shop,Local Transmission Repair Sunnyvale,...Read more about Mountain View Auto and Truck
          Mountain View Auto and Truck is specialized Auto Repair Shop in Mountain View, CA.We also offer auto brakes,suspension,timing belt.Take advantage of our professional services now. Auto Repair Service, Auto Engine Repair, Auto Maintenance, Transmission Repair Shop,Local Transmission Repair Sunnyvale,...Read more about Mountain View Auto and Truck
          Porch Pro Headshot AB/Jdd Plumbing & Heating
          HVAC Contractors
          Serves Los Altos, California
          Looking for someone who knows what they're doing? Tired of big chain employees who just don't have the experience? Reliable, trustworthy and clean, with AB/JDD Plumbing, Heating, and Air Conditioning you get depth of knowledge. Each technician is professional and experienced to ensure your home's e...Read more about AB/Jdd Plumbing & Heating
          Looking for someone who knows what they're doing? Tired of big chain employees who just don't have the experience? Reliable, trustworthy and clean, with AB/JDD Plumbing, Heating, and Air Conditioning you get depth of knowledge. Each technician is professional and experienced to ensure your home's e...Read more about AB/Jdd Plumbing & Heating
          Porch Pro Headshot SM Value HVAC
          HVAC Contractors
          Serves Los Altos, California
          As a leader in the appliance repair and HVAC service industry, you can rest assured that you will be provided with the highest quality repair service. All Repairs Guaranteed. Always Low Cost & High Quality Service Clean, Courteous Quality Workmanship Most Work Done On Your Premises No Extra Charge :...Read more about SM Value HVAC
          As a leader in the appliance repair and HVAC service industry, you can rest assured that you will be provided with the highest quality repair service. All Repairs Guaranteed. Always Low Cost & High Quality Service Clean, Courteous Quality Workmanship Most Work Done On Your Premises No Extra Charge :...Read more about SM Value HVAC
          Porch Pro Headshot Therma Corporaiton
          HVAC Contractors
          Serves Los Altos, California
          History of innovation. Founded in the early years of the Silicon Valley technological revolution, Therma Corporation has made a significant impact on the Bay Areas mechanical industry. We performed the original mechanical work for cleanroom and manufacturing areas of the founding semiconductor compa...Read more about Therma Corporaiton
          History of innovation. Founded in the early years of the Silicon Valley technological revolution, Therma Corporation has made a significant impact on the Bay Areas mechanical industry. We performed the original mechanical work for cleanroom and manufacturing areas of the founding semiconductor compa...Read more about Therma Corporaiton
          Porch Pro Headshot Alternative HVACS
          HVAC Contractors
          Serves Los Altos, California
          Alternative HVAC Solutions Inc. has skilled staff with a combination of over 35 year's experience, providing HVAC services that have set industry standards for professional service and technical expertise. Alternative HVAC Solutions Inc. draws upon this extensive experience and knowledge to create a...Read more about Alternative HVACS
          Alternative HVAC Solutions Inc. has skilled staff with a combination of over 35 year's experience, providing HVAC services that have set industry standards for professional service and technical expertise. Alternative HVAC Solutions Inc. draws upon this extensive experience and knowledge to create a...Read more about Alternative HVACS
          Porch Pro Headshot Mercury Mechanical Contractors Ltd
          HVAC Contractors
          Serves Los Altos, California
          Serving the Greater San Jose area, we have been family owned and operated for 50+ years. I'm still doing this after all these years so you get experience and since I'm the owner, I'm on nearly every job. I've given the personal treatment to everyone after all these years and that's why people keep c...Read more about Mercury Mechanical Contractors Ltd
          Serving the Greater San Jose area, we have been family owned and operated for 50+ years. I'm still doing this after all these years so you get experience and since I'm the owner, I'm on nearly every job. I've given the personal treatment to everyone after all these years and that's why people keep c...Read more about Mercury Mechanical Contractors Ltd
          Porch Pro Headshot NORTH CAL HEATING & AIR
          HVAC Contractors
          Serves Los Altos, California
          They arrived on time, worked hard and were very professional. They called to follow up after a heavy rain to ensure that I was happy with their work. Their pricing was very reasonable.
          They arrived on time, worked hard and were very professional. They called to follow up after a heavy rain to ensure that I was happy with their work. Their pricing was very reasonable.
          Porch Pro Headshot Air-Eaze Heating and Cooling
          HVAC Contractors
          Serves Los Altos, California
          Heating Contractor Milpitas,Heating Contractors Milpitas Air Conditioning Contractor Milpitas,Air Conditioning Contractors Milpitas Air Conditioning Repair Service Milpitas
          Heating Contractor Milpitas,Heating Contractors Milpitas Air Conditioning Contractor Milpitas,Air Conditioning Contractors Milpitas Air Conditioning Repair Service Milpitas

          Latest projects near Los Altos

          Recent projects booked on Porch
          Sunnyvale 94087
          Thermostat Replacement and Repair
          Comments from Customer
          change Thermostate furnace. Current thremostat PRO is malfunctioning
          Los Altos Hills 94024
          Thermostat Replacement and Repair
          Comments from Customer
          thermostat repair or replace for the heating system and filter chane s.
          Cupertino 95014
          Thermostat Replacement and Repair
          Comments from Customer
          Customer did not provide additional comments. Please contact the customer to discuss the details of this project.
          Palo Alto 94306
          Thermostat Replacement and Repair
          Comments from Customer
          I need to replace the original thermostat for living room baseboard heaters and have already bought a Honeywell 5-2 day/programmable electric heat thermostat (RLV4305A).
          Sunnyvale 94087
          Thermostat Replacement and Repair
          Comments from Customer
          I would like to get an estimate for installation of thermostat ehco beat