Get Quotes Contact Us Sign In
Website
Call
Comfort Zone Mechanical Air Thank you for Considering Comfort Zone Mechanical Air for your home and business comfort requirements. Comfort Zone Mechanical Air supplies quality Air Conditioning and Heating service to the San Francisco Bay Area. We have 24 years of knowledge in the HVAC industry to ensure each one of our clients recieve the standard of service and quality of work that is hard to find in any industry.
Reviews (40)
Write a Review
Maury S.
Jun 26, 2022
Comfort Energy installed a new furnace for me in November 2018. It was supposed to be more efficient (at 86%) than what it replaced. I also redid my insulation. However, energy usage has increased. Each year, they come for an inspection. I reported the problem each year and was told that I would be contacted by the office. Every year, no one ever contacted me.

I was ignored. When the asked me to pay for new annual inspections, I mentioned this and was finally contacted by a manager. That was in early May. He asked me to provide a spreadsheet with the usage for the 4 months for the last year you had the old furnace and the subsequent period since replacement. At great effort, I did that. He told me sent the information to his counterpart at his suppliers. Despite my repeated follow-ups, nothing has been done and the issue is still being ignored. Using Comfort Energy was a very costly mistake.
Ferdinand N.
Jun 21, 2022
From the initial call to the actual technician that fixed the issue. these guys are highly recommended. Professional, courteous and punctual were the key element I've experienced. will be your walking advertisement moving forward. Special mention to Eddie for solving the issue!. neat and outstanding professional employee. you make your company proud. keep up the great customer service and your managements training. they are doing something that is right and is working. Kept you guys' contact information on my phone.
Barton C.
Jun 11, 2022
I live in RWC and 2 days before heat wave both AC systems went out. Called several HVAC companies and only Comfort Energy was able to respond in a couple of days. One of the local companies I had used in the past and spent several thousands dollars with gave me a 10 day lead time. Eddie came out and successfully diagnosed both of my systems. Upstairs system had T-stat wires running from control board along line set to condensor exposed for several inches outside building.

Well the dam rats stripped off the entire jacket and the insulation off of each conductor clean so the low voltage side was shorting and popping the fuse. F'ing rats. I hate them more than flies. Second unit had a bad motor capacitor but it had fooled me because the fan would come on but the compressor wasn't starting up and I failed to notice.

So Eddie replaced the cap. He didn't have a direct replacement on the truck but he made the one he had work. It was just a larger diameter so he had to jury rig the mounting clamp. Both units were working great when he left on 6/10/22 at 5:30 pm. By 8:00pm the second condensor/compressor unit had failed! OMG. I was so pissed. Of course we are now in the middle of heat wave. Well, it turns out the capacitor on the second unit we didn't replace because it was was working fine for 10 years decided to fail hours later!

I ended up spending my Saturday morning sourcing a new capacitor and replacing it. Now everything is working again. After a little research I realized that AC capacitors fail regularly over time and this is the #1 reason for repair. The cost for service call, diagnosis, and replacement of the cap was $308 and this was during regular hours. Imagine weekend service charges would be astronomical.

So I immediately went online and bought 2 spare caps to have on hand that are direct replacement for the next time they fail which will of course happen during a heat wave. A high quality American made capacitor cost a whopping $17. Anyone with AC and a house that gets super hot can source one from www.supplyhouse.com. You need to look up the capacitance and voltage.

The most commonly stocked models for residential units are 370/440 volt caps. A common cap used is called a "dual motor capacitor" which is basically two caps in one housing. The capacitance rating in micro farads is printed on the label. For example my AC units used a 50+5 uF capacitor that was in a 2" diameter package. Anyway, Eddie my service tech was capable and professional and he got me back up and running same day and part of his success was making the effort to trace the T-stat wires and he saw that they were stripped just feet from my condensor.

I had been staring at them for years and not noticing the damage. He made a makeshift repair with some electrical tape and I'm back in business. I really need to go into the crawlspace to splice in and replace the damaged section of wire but that is a bigger more time consuming job I will take on myself.
Ron H.
Jun 08, 2022
What a fantastic company! Eric, our Sales Manager, worked and discussed with us regarding our needs. Then the following day, Oscar and Alehandro started the work. They were very courteous and knowledgable and most of all.take a lot of Pride in their work. By 4pm, they double and triple checked their work and we were sitting in a nice cool house. Can't say enough about this team! Bravo!
Danny S.
May 21, 2022
AC went out. C.E. was quick to come out and quickly diagnose the issue. Their tech Eddie was very helpful. Even taught me home care treatments I can do to get the most out of my units. Satisfied with their business so I signed up for annual care. Definitely recommend!
Kitty R.
May 07, 2022
I just wanted to take the time to review this company for the excellent customer service and work we received. First our sales man Eric was extremely knowledgeable on the product along with the budget we had. He got us set up with a package unit that was right up our alley with our needs and our price bracket. Next the customer care manager, Pat, came and was quick and thorough when checking out the job site of any concerns before the team proceeded.

Then came time for the installation. The crew consisted of Alexander and Oscar whom were not only friendly, but eager to get the job done efficiently. The best part was we were on a massive time sensitive project with our roof being done and this company worked with us extraordinarily to get the job done! We cannot thank these men enough for the great job they did and the accommodations they met. I would highly recommend this company to friends and family because they are definitely true to their mission! Thank you Consumer Energy!
J. J.
Apr 02, 2022
I had used Comfort Energy for my AC Freon in the past. I had a very good experience with them. They are reliable & the service gentleman, Ralph was incredibly friendly, knowledgeable and helpful. A couple days ago, I called Comfort Energy to request for air duct cleaning service. The service gentleman, Jimmy Santana came today. He knocked the door.

His uniform was clean & neat. He was very polite, friendly and thorough with his work. He took his time to clean the air duct and was very careful on moving the ladder around the house. I am extremely happy with Jimmy. I have a 3-story house. Jimmy climbed back and forth and it was quite tiring. However, he still patiently and nicely answer any questions if asked. I would highly recommend Jimmy for any air duct cleaning. Thanks Jimmy for the great work. You are incredible!
Andrew M.
Mar 18, 2022
We purchased a home in San Jose and found out the high efficiency furnace was venting into the attic and needed immediate attention. Comfort Energy responded quickly and were able to make repairs to my furnace the same day as well as install a smart thermostat I had purchased myself. Max was professional, knowledgeable, and nice. I highly recommended Comfort Energy.

Their fee was very reasonable for the service provided and unlike another company I contacted, they gave me a clear quote for the work to be done and did not charge me an upfront fee just for showing up or try to sell me an annual maintenance contract.
Barbara Weber
Mar 08, 2022
Comfort Energy did an excellent job and insured that we were satisfied. They followed up to our highest expectation. I would recommend them for their service, timing, completion and follow up. Barbara- Los Gatos
Arj U.
Mar 05, 2022
Jimmy was awesome! He came out to check our furnace, tuned it for optimal performance and cleaned out our entire HVAC duct system - he was very communicative and knowledgeable and kept us informed continuously about all things with our HVAC system as he was making adjustments and cleaning it out. The system works really well now and heats up all areas of the house thanks to Jimmy's attention to detail. Highly recommended!
Fiona Naughton
Feb 22, 2022
Comfort Energy have been a breath of fresh air - responsive, quick, communicative, with a lovely and very knowledgeable chap Max who came to do the work - in a world of no call-backs, no-shows and lack of accountability, Comfort Energy has been impressive, friendly and over-achieving at every step of the process. Service: Repair HVAC
Ken S.
Feb 16, 2022
I contacted Comfort Energy through Angi's List as I did not have a reference or knowledge of another furnace repair company. Craig called me immediatly after I completed my Angi's listing and Craig dispatched Max for the next AM. Max arrived and diagnosed the problem in very little time. And their pricing seems very fair! I HIGHLY recommend Comfort Energy for any furnace/air conditioning work and be sure to ask for Max. Just call them now at 408 263 3100.
Mike Martin
Feb 13, 2022
We had Comfort Energy clean our dryer vent and they were professional, efficient and cleaned up after. Jimmy was our service tech and he went above and beyond and was very thorough as well as hard working. We strongly recommend Comfort Energy for your ducts cleaning. They exceeded our expectations on so many levels and we give them a solid five stars.
Irene H.
Feb 02, 2022
Great service! They took care of a problem quickly. I recommend them highly! Pat was really good to work with. Jimmy was the man who did the installation. He was polite, wore his mask and covered his shoes whenever he was working in the house. They installed a new heater and air conditioner last year. Completed prior to the cold winter months. Thank you, Thank you!
Corie S.
Feb 02, 2022
My family used Comfort Energy for heat/AC mini splits in our eichler. We live in San Mateo and they came from Milpitas, we never had a issue with them being late or trying to leave early. They were awesome! They did numerous walkthroughs with us and a final detailed walkthrough with their team to ensure we liked the mini split placement. German and his team did a quick and fabulous job, they were efficient, polite and easy to talk to. We highly recommend Comfort Energy and would use them again if we ever needed to! Thank you!
Jennie Garay
Jan 30, 2022
Armando and Erwin were on time, completed installing early and very professional. The front office kept me informed of arrival appointments and answered all questions. Good company. Service: Installation
Alan L.
Jan 14, 2022
Recently Comfort Energy replaced one furnace unit and updated a second unit. Both done in a timely manner. They have responded to us by tweaking some issues. We like it that they are responsive during the cold spell. Our guests have replied with positive comments to me several times. Alan
Michael L.
Jan 11, 2022
I contacted Comfort energy to repair our heater just before Christmas. For a variety of reasons this process did not go well and we were without heat for many days. I gave this company 5 stars because of how they responded to and rectified the issues we encountered. In response to my many complaints, manager Craig took full responsibility and intends to "make good" on our distress and inconvenience.

The excellent work of the technician Jose was very instrumental in getting our newly installed heater to function properly. This company has gone to great lengths to restore our trust. Now, we will be lifelong customers and we recommend them to you.
Michael Lauriola
Jan 08, 2022
Armando and Darwin did a great job of installing my heater and thermostat. They were efficient, knowledgeable and performed at a high level. They helped me to understand the installation and how heating works in my home. They cleaned up well and sanitized the areas of my house that they touched. They seemed to take pride in their work and I would easily call on them again.
Bill Hare
Dec 29, 2021
I have used Comfort Energy for years, had a full heat pump installation done for our downstairs some years back, and today had a repair done on the 20+ year old upstairs system. I thought it was going to need a very expensive replacement, and was so happy with the honest evaluation that it could be repaired for less than 1/10 the price. Today our upstairs system is finally working again after a few years of ignoring it, fearing the cost - I shouod have done this years ago! :-
Lou Yang
Dec 17, 2021
We had an urgent need to have our hydronic heating system repaired during the cold winter. Called 2 contractors and both could have the service schedule only a few days later but Comfort said it might have a cancellation and could place me on waiting list for sooner schedule. Subsequently I was told a new schedule 2 days earlier than the original one opened up and so I took it, at the same time cancelled the other contractor.'s appointment. However, no one showed up, and when I called to ask, the customer service told me my schedule had been moved one day later (not earlier).

Since the other contractor's appointment had been cancelled, I had to accept the later schedule. This time, the technician showed up but instead of doing the repair, he told me he had to give me an estimate to approve and then again schedule a new appointment to do the actual work. For this delayed appointment and nothing performed, I had to be charged $156! (While the other contractor clearly told me no charge whatsoever for only providing an estimate!)
Huang P.
Dec 15, 2021
I had to replace two old gas floor furnaces in my duplex in Mountain View. Comfort Energy did an excellent job. Eric the salesperson arrived at the best solution quickly, which was to have two gas furnaces installed with ductwork in the attic. He was also excellent in following up with everything to make sure that I had a good experience with the entire process. Pat the manager did a great job of assessing and scheduling the work to be completed ASAP.

The installer team of Armando, Daniel, Olman, Darwin, and Adrian did a stellar job during the install. They were able to install the furnaces and ductwork in the attic in three days. The attic was sort of a mess with old insulation before they started. I was impressed with their work - the attic was very clean with nice ductwork after the install.

The part that impressed me the most was their commitment to do the work correctly - they visited the job site a few more times to make sure that the gas furnace roof vents were sealed and supported correctly so that there were no leaks during rain storms. Finally, the install crew was very clean and cleaned up after the job nicely. The new furnaces are working great!
Cindy A.
Dec 10, 2021
We received such excellent service from Comfort Energy! Our installer Oscar was great - knowledgeable, courteous and so quick! Our initial contact person Ralph was also great, we had met with him before and were glad to work with him again. They were very responsive and answered all our questions as well a providing all the detailed info we would need in future.

Comfort Energy kept great records and history on prior visits and estimates. They were able to quickly install a heater to ensure we would not have to endure a 37 degree nighttime temp. Great job and Thanks!
Annette V.
Dec 03, 2021
During the night, our 37 year old furnace stopped blowing warm air, but kept cycling on and off. This morning, we called Comfort Energy at 9:25 am, spoke with the most pleasant representative who scheduled a service call for this afternoon. Eddie was here before 1:00 pm, looked over the old system, and made his recommendations. He left to pick up a part, and returned to bring the system to working order.

He was very professional, followed COVID protocols, and was very friendly. I was afraid that because of the age of the system, we were going to be faced with a replacement, but the service call and part fixed the issue. We will be sure to call Comfort Energy again and are happy to refer them. Thank you!
Steve Bunnell
Dec 01, 2021
My long time HVAC company retired and I needed a new company. The new company Comfort Energy was fantastic. The technician was extremely friendly and had the Nest Learning Thermostat installed in record time. I will absolutely use them again. Service: Thermostat installation
D. Ward
Dec 01, 2021
Jose was knowledgeable and courteous. Called a few minutes in advance to let me know he was on the way, wore booties and mask. Was able to answer all of my many questions. Performed furnace tune-up. Checked thermostat operation. Service: Heating maintenance
Clif Davidson
Nov 20, 2021
Armando did a great job on the install and was very personable throughout the process which took one day. He explained what he was doing when I checked in and when it was finished cleaned up completely. Ralph who came to do the assessment was very helpful in thinking through the decision on repairing the old unit or buying a new one. We are happy customers
Nell & James Bradley
Nov 20, 2021
Max Lorenzo did a great job and inspected everything-found rodent droppings and cleaned the area. I contacted my pest company and they will do a rodent assessment. His action will allow us to prevent a possible rodent problem. He was very customer focused and took the time to answer all of my questions. Service: HVAC maintenance
Sam Saffieh
Nov 14, 2021
We have used Comfort Energy multiple times over the years until last year we purchased a new furnace from them with installation. The experience was very efficient, timely and professional. We also just had our Tune up completed and as expected the technician was very professional, courteous and knowledgeable. Highly recommend!
Joe S.
Oct 15, 2021
Our 26 year old furnace quit and we decided to replace it and add air conditioning as well. Erik from Comfort provided a fair quote and we decided to move ahead. German and Adrian showed up on time and did excellent work. My garage is cleaner now than it has been in years and the furnace replacement and new AC system are installed with care. Finding people who care about their work and take the time to do the job correctly is quite refreshing these days. I cannot recommend Comfort Energy enough, they will be my go to for any future problems.
Bhushan P.
Oct 06, 2021
I have been a long time customer of Comfort Energy and would definitely recommend them for any of heating/cooling/ducting issues. I have used their services when my heater stopped functioning, my AC was leaking as well as when my ducts had to be replaced. They ensured they provided the best service and showed me the problems which existed before. The team of German, Daniel and Omar worked on the duct replacement and they did a great job. I would vouch for this company.
C. D.
Sep 30, 2021
Armando and his crew swapped out my old AC for a new one. They did a great work. Great service. Very responsive and respectful. The price is reasonable as well. New AC is working perfectly!
Vickie W.
Aug 28, 2021
Great service, most competitive prices and completed the job on time. Service technician was on time and analized the problem and showed me the problem and presented a solution. The whole team provided me with the best solution at the best cost. I went out to bid to three companies and Comfort Energy came back with the best solution at the best cost. Installation went very smoothly and was completed in one day. The install crew did a fine job. I highly recommend Comfort Energy.
David W.
Aug 14, 2021
Justin came out and gave me a reasonable quote. He was personable, efficient and quickly assessed the work needed. I've shopped around and these guys are quite competitive and decided to go with them. The crew (Michael, Raul, Jaime and Irwin) came out and they were top notch. Super friendly, knowledgeable and very efficient. These guys installed the AC, ran electrical, encased the coolant line, tested and cleaned up all in one day!

Normally this is a two day job. These guys were awesome! Highly recommended and will definitely use again. On another occasion, the furnace blower started working intermittently. It would kick in, work for a few hours and would stop. It would then resume working the next day. Contacted Justin and Craig on a Friday night, they promptly booked me for a service call with Ralph next day. Ralph was quick to id the problem and narrowed it down to the 5mF capacitor, replaced it and got my furnace blower working again in less than 30min. Ralph was personable and highly knowledgeable. These guys at comfort energy are awesome. Justin and Craig really strive hard to provide great customer service. Got a customer for life!
J. P.
Jul 29, 2021
I used a service for replacing my water heater. The company provides quick response and professional service. German and Adrian carefully handled all the replacement process professionally. I little bit worries that my house is 3rd floor condo w/o elevator and it makes them hard to work but it wasn't matter to German and Adrian. They are very kind, polite and responsible - also the receptionist and managers who I talked too.

I also want to note that my water heater started to leak water Sunday Night, and my water heater was replaced on Wednesday afternoon! I really appreciate to German and Adrian and the company.
Shao Z.
Jul 21, 2021
I called them yesterday and they will be able to come today, which really helps. Looks like they have plenty capacity to serve their customers. Eddie provides a really good service. He arrived on time with a face mask. Covid-Safety Approved! He diagnosed the issue of my AC and fix it with replacing a capacitor within 30min. After replacing it, he also checked and tested other components to make sure there is no other issue.
Pheonna N.
Jul 16, 2021
Ask for Max Lorenzo! Very professional and courteous when entering the home. Also very knowledgeable on the systems and evaluating anything that needs to be fixed. Thank you Max for your help!
Barry E.
May 12, 2021
Nima and Oscar took extra care installing our new AC and Heater. They were polite, professional, careful, and they cleaned up after. I had concerns about which breakers they would turn off while working, and they checked with me before making any breaker changes. They even went the extra mile, and added covering to the older section of our ducts that connected the heater to the ductwork in our attic. They took the time to explain what they had done, how the new devices worked, and were patient with any questions. Nice job and thanks!
Alison M.
Mar 13, 2021
Carlos, the sales manager did a great job explaining mini split systems and how they could be installed in a very old house. Daniel, German, Raul and Adrian did all the work. It took them a week because as I said my house is challenging. I lived with these guys every day for a week and they were respectful and tidy. They vacuumed and cleaned up every night before they went home.

They did an amazing job installing all the piping, the electrical and the condenser. I am very happy with the result. The units are really quiet as is the condenser outside. What an upgrade from a 100 year old gravity gas furnace heater and portable heaters in each room. I also have air conditioning too. Now I can look forward to the summer!
Daniel L.
Feb 19, 2021
We had our furnace and water heater installed recently in Los Gatos. Armando and Luis were the installer. I could't be happier with the job they have done. They were very professional, responsible and polite. They were super patient to explain everything they were doing. The house was empty for a while, it was very dirty behind the furnace. They helped me cleaned up all the stuff.

They made my furnace and heater closet neat and tidy. I also want to thank Pat, who gave me a very reasonable proposal. He was also very polite and knowledgable, super responsible. I was impressed by all the amazing staff of comfort energy. During the whole renovation of my house, this company was the best I have met because they have such wonderful staff. Thanks again Armando, Luis and Pat!