Top 10 HVAC Companies in Los Altos, CA

Porch Pro Headshot Unique Home Design & Remodeling
HVAC Contractors
Serves Los Altos, California
"We can not thank Steve and his teams from Unique enough for the excellent job they did on our remodel. We had a rather large project of new roof, exterior paint & gutters, electrical box upgrade and kitchen remodel done which was completed within expected finish window. It was so nice to have a p...Read more about Unique Home Design & Remodeling
100% response rate
"We can not thank Steve and his teams from Unique enough for the excellent job they did on our remodel. We had a rather large project of new roof, exterior paint & gutters, electrical box upgrade and kitchen remodel done which was completed within expected finish window. It was so nice to have a p...Read more about Unique Home Design & Remodeling
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 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 Silicon Valley Comfort
HVAC Contractors
Serves Los Altos, California
(215)
Call us anytime, there will be a live & localized Technician in San Jose available to speak with, 24-hours every day. Silicon Valley Comfort is always happy to help with all of your Heating, Ventilation & Air Conditioning questions & needs. We offer Repairs, Maintenance & Installations on the foll...Read more about Silicon Valley Comfort
Call us anytime, there will be a live & localized Technician in San Jose available to speak with, 24-hours every day. Silicon Valley Comfort is always happy to help with all of your Heating, Ventilation & Air Conditioning questions & needs. We offer Repairs, Maintenance & Installations on the foll...Read more about Silicon Valley Comfort
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.
Porch Pro Headshot Bel Carlos Plumbing
HVAC Contractors
Serves Los Altos, California
(5)
Welcome to Bel-Carlos Plumbing Complete Service and Repair Kitchen and Bath remodeling Water heaters Toilets and Faucets Sewer and water lines repaired and replaced Wall and floor heaters Radiant heat repairs Sewer and drain cleaning Sewer lateral testing Trenchless sewers Sewer ejectors ...Read more about Bel Carlos Plumbing
Welcome to Bel-Carlos Plumbing Complete Service and Repair Kitchen and Bath remodeling Water heaters Toilets and Faucets Sewer and water lines repaired and replaced Wall and floor heaters Radiant heat repairs Sewer and drain cleaning Sewer lateral testing Trenchless sewers Sewer ejectors ...Read more about Bel Carlos Plumbing
Porch Pro Headshot Aleco Electric & HVAC
HVAC Contractors
Serves Los Altos, California
(4)
Aleco Electric is a family owned and operated Electrical Co. No job to big or to small. Anything from installing an outlet to a full home rewire, we have your Electrical needs covered. 24 hour emergency service available. 1 HOUR EMERGENCY RESPONSE! TROUBLESHOOTING SPECIALIST SENIOR AMD MILITARY DI...Read more about Aleco Electric & HVAC
Aleco Electric is a family owned and operated Electrical Co. No job to big or to small. Anything from installing an outlet to a full home rewire, we have your Electrical needs covered. 24 hour emergency service available. 1 HOUR EMERGENCY RESPONSE! TROUBLESHOOTING SPECIALIST SENIOR AMD MILITARY DI...Read more about Aleco Electric & HVAC
Porch Pro Headshot GIA Power Management
HVAC Contractors
Serves Los Altos, California
(8)
GIA Power Management is a commercial development and construction company dedicated to providing a full spectrum of services to the commercial and industrial community. We are dedicated to provide complete construction, maintenance and property management services to our clients. Our ability to work...Read more about GIA Power Management
GIA Power Management is a commercial development and construction company dedicated to providing a full spectrum of services to the commercial and industrial community. We are dedicated to provide complete construction, maintenance and property management services to our clients. Our ability to work...Read more about GIA Power Management
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

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

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
24458

Can't give this man any stars! He is one of the most arrogant and rude men I have ever seen in my life. He called the faucet I bought"garbage". He sells the Kohler brand in his store. He said he could install mine but would NOT guarantee it insisting it ...

- Tony Sisneros
36523
31045
547130

Unique Home Design & Remodeling provided exceptional customer service from start to finish. They were responsive to my inquiries and worked diligently to complete the installation of my new tile floors. I'm thrilled with the outcome!!!

- Nancy McCalla
539736

Choosing Unique Home Design & Remodeling for our home renovation project was one of the best decisions we've made as homeowners. From the initial consultation to the final touches, their team demonstrated professionalism, expertise, and a commitment to ex...

- Santos Culbert

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 Go Green Restoration Cleaning
          HVAC Contractors
          Serves Los Altos, California
          (40)
          When you need help cleaning your carpet and upholstery, call upon the BBB A+ rated (as of January 2018) Go Green Restoration Cleaning in Riverdale Park.
          When you need help cleaning your carpet and upholstery, call upon the BBB A+ rated (as of January 2018) Go Green Restoration Cleaning in Riverdale Park.
          Porch Pro Headshot FairPrice Heating & Cooling
          HVAC Contractors
          Serves Los Altos, California
          (12)
          Family owned and operated, Fairprice Heating & Cooling has been serving the Bay Area with quality work and services since 2012. We provide the best and most affordable Bay Area Heating and Air Conditioning services. Whether you need heating repair, air conditioning service, air duct cleaning, or a h...Read more about FairPrice Heating & Cooling
          Family owned and operated, Fairprice Heating & Cooling has been serving the Bay Area with quality work and services since 2012. We provide the best and most affordable Bay Area Heating and Air Conditioning services. Whether you need heating repair, air conditioning service, air duct cleaning, or a h...Read more about FairPrice Heating & Cooling
          Porch Pro Headshot ARS Comfort Solutions  Inc
          HVAC Contractors
          Serves Los Altos, California
          Motivation is a strong factor in the work that is accomplished by ARS employees. At ARS Comfort Solutions, we use several motivational strategies. Some of them are: Keeping stress off the employee and allowing them to concentrate on one job at a time; Making them WANT to do a good job and get a good...Read more about ARS Comfort Solutions Inc
          Motivation is a strong factor in the work that is accomplished by ARS employees. At ARS Comfort Solutions, we use several motivational strategies. Some of them are: Keeping stress off the employee and allowing them to concentrate on one job at a time; Making them WANT to do a good job and get a good...Read more about ARS Comfort Solutions Inc
          Porch Pro Headshot Lacayo Mechanical
          HVAC Contractors
          Serves Los Altos, California
          (39)
          Porch Pro Headshot Healthy Duct  HVAC Services
          HVAC Contractors
          Serves Los Altos, California
          (5)
          "Agree with the other 5 star reviews. Very nice people you will feel happy to have in your home. Professional and knowledgable - I'm sorry I waited so long to have my vents cleaned! Will be sure to call them again and recommend them to my neighbors."
          "Agree with the other 5 star reviews. Very nice people you will feel happy to have in your home. Professional and knowledgable - I'm sorry I waited so long to have my vents cleaned! Will be sure to call them again and recommend them to my neighbors."
          Porch Pro Headshot Crystal Clear Window Cleaning
          HVAC Contractors
          Serves Los Altos, California
          (29)
          Crystal Clear Window Cleaning offers top-notch window cleaning service to the residents of Palo Alto, CA. Get experienced help in the our area by Crystal Clear Window Cleaning. Call us and get in touch with our commercial & residential window cleaning professionals. Window Cleaning, Commercial Windo...Read more about Crystal Clear Window Cleaning
          Crystal Clear Window Cleaning offers top-notch window cleaning service to the residents of Palo Alto, CA. Get experienced help in the our area by Crystal Clear Window Cleaning. Call us and get in touch with our commercial & residential window cleaning professionals. Window Cleaning, Commercial Windo...Read more about Crystal Clear Window Cleaning
          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 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 BARLOW'S REFRIGERATION CO.
          HVAC Contractors
          Serves Los Altos, California
          Serving the Silicon Valley and San Fransisco bay area since 1987, Barlow's Refrigeration specializes in commercial and residential refrigeration and air conditioning needs. Barlow's Refrigeration is fully licensed, insured and bonded. We pride ourselves on quality installation and maintenance of com...Read more about BARLOW'S REFRIGERATION CO.
          Serving the Silicon Valley and San Fransisco bay area since 1987, Barlow's Refrigeration specializes in commercial and residential refrigeration and air conditioning needs. Barlow's Refrigeration is fully licensed, insured and bonded. We pride ourselves on quality installation and maintenance of com...Read more about BARLOW'S REFRIGERATION CO.
          Porch Pro Headshot Leo Gotelli Plumbing Inc
          HVAC Contractors
          Serves Los Altos, California
          Started in 1972, this family business is one of the most dependable full-service plumbing companies in the San Francisco Bay Area. We are fully equipped to handle any plumbing services that come our way. From residential work to commercial accounts, we specialize in it all. Over 48 years of exper...Read more about Leo Gotelli Plumbing Inc
          Started in 1972, this family business is one of the most dependable full-service plumbing companies in the San Francisco Bay Area. We are fully equipped to handle any plumbing services that come our way. From residential work to commercial accounts, we specialize in it all. Over 48 years of exper...Read more about Leo Gotelli Plumbing Inc
          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 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
          Porch Pro Headshot Air and Plumbing
          HVAC Contractors
          Serves Los Altos, California
          Porch Pro Headshot Fix All Appliances HVAC
          HVAC Contractors
          Serves Los Altos, California

          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