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John Lock Air Conditioning & Heating Service
John Lock Air Conditioning and Heating Service Inc. is a third generation company. We have been serving customers for 50 years! Keeping your heating a cooling system efficiently functioning is easier than you think when you choose John Lock Air Conditioning & Heating Service Inc. We go the extra mile to ensure that all of your needs are met through a well-serviced HVAC system.

There's no service request that our skilled and punctual team of heating and cooling technicians cannot handle. You can expect to receive quality workmanship and efficient service.

When you choose John Lock Air Conditioning and Heating Service for your HVAC needs, not only can you expect premium products installed at a fair and reasonable price, but also service and maintenance for your system during its lifetime with the same expectation of quality work and fair pricing.Reach out to our office today to schedule a service appointment or request a free estimate on a new system.
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We are a third generation air conditioning & heating company based in Buffalo, NY. Our management team offers over 60 years of combined experience. We are qualified to handle all of your needs. We specialize in the design, installation and service of heating, cooling and indoor air quality equipment for both residential and commercial properties.
As your heating system ages, it can lose efficiency or stop working altogether. At John Lock Air Conditioning & Heating Service Inc., our goal is to offer quality heating system installation for all of our valued customers in Western NY. Whether you own a single family home or a larger building, we're here to design a heating solution that will best serve your needs.
If you're looking to upgrade or replace your heating system, consider radiant heating from John Lock Air Conditioning & Heating Service Inc. We specialize in the installation of radiant heating systems and equipment. Radiant heat is a highly efficient option that is widely considered to provide the most natural and comfortable heat for your home or business, a radiant heating system is fairly simple to install.
John Lock Air Conditioning & Heating Service Inc. is dedicated to keeping clients cool. No job is too big or small, and we aim to deliver complete customer satisfaction on every project we undertake. We also offer a wide selection of air conditioner models at affordable prices to meet your specific needs.
Those boxy window-mounted air conditioning units might be the old standby, but they can leave much to be desired. They're often noisy, unwieldy, and heavy, and they basically co-opt a window for months out of the year. Fortunately, there is a better solution for home and business owners across Western NY: ductless air conditioning.
Reviews (19)
Paul Runfola
Paul Runfola
Nov 25, 2021
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My entire experience with John Lock Heating and A/C was fantastic from start to finish. The estimate process from Mike was honest and straight forward. He made solid recommendations in the replacement of my furnace and air conditioning and explained the process clearly. He didn't try to oversell me equipment I didn't need. Pricing was competitive. The receptionists on the phone are also very friendly. On installation day, Paul, the head foreman, and his crew were pleasant and highly professional. They were competent, knowledgeable and efficient. Again, they explained the installation process and
Kathy Johnson
Kathy Johnson
Sep 29, 2021
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I've dealt with John Lock for many years. For instilation and repair. Friendly, thorough and reliable. Always explains what they are doing. Show you old parts. Very honest.
Mike Pagano
Mike Pagano
Aug 27, 2021
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Seriously has bailed us out 3 times in 2 years. They always came quickly and are super affordable. Techs have been amazing also. In and out and are kind. Thanks again guys.
Gretchen Moran
Gretchen Moran
Mar 28, 2021
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Friendly, fair prices, honest answers to help the home owner spend and save money where needed. Great experience
Ralph Fonda
Ralph Fonda
Feb 04, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Prompt service call response! Courteous, knowledgeable technician and honest service! Focused on fixing the issue, not going overboard! Recommended!
Service: Heating maintenance
Eric Reeners
Eric Reeners
Nov 27, 2020
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From the first sales quote through installation the team at John Lock has been outstanding. We received 4 quotes before making a decision and not only was John Lock’s quote significantly less, Chris in sales put the most effort into formulating his quote. He walked through our entire house, listening to questions and concerns we had from our old heating system and developed two different levels of options to go for. He was never pushy, or trying to oversell. He took phone calls for multiple questions I had before deciding to go with them. When installation day came, Paul’s team was punctual
Eugene Przybyl
Eugene Przybyl
Oct 07, 2020
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I think I got a fair price for the installation of a new furnace. Everyone that I interacted with from the first phone call up until installation was knowledgeable , professional , respectful and just plain nice. The installers went above and beyond in their work and took time to explain everything I needed to know.
Michael Attea
Michael Attea
Sep 30, 2020
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I have been using John Lock for our property management company for decades. They are our first call for all of our HVAC needs. They service big and small and their work is top notch with very fair pricing. The staff communicates exceptionally well and always lets me know what my options are when facing a repair or replace situation. I highly recommend John Lock whenever I am asked if I know a good HVAC company.
Eileen Kelchlin
Eileen Kelchlin
Sep 14, 2020
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Outstanding professionalism & courtesy demonstrated by Paul, Mike & Andy. They arrived at the designated time, installed the equipment, explained the operations of the thermostat & left the basement very tidy & disposed of all old equipment & boxes & parts.
I highly recommend John Lock for your heating & AC needs - they are a local company that takes pride in their workmanship customer relations!!!
Chris
Chris
Jul 08, 2020
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Scheduled an appointment for service, for a week and a half after our call. We were told between 9 - 12 someone would be at our house. There was not a call to confirm and no shorter time window given as we got closer to the appointment. So we planned our day to be home and available for those 3 hours. NO ONE SHOWED, NOR CALLED. I had to call at 12:45 and ask why no one had showed, then I was told that our appointment was for after 12. Which was NOT what we were told when we scheduled the appointment.
We were told the tech was stuck on a job and may not be done until 4pm. We were not given a call
Eva Christ
Eva Christ
Jun 20, 2020
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KUDOS and 5 STARS to John Lock Air Conditioning & Heating Service! Our furnace died and they came the next day and installed a new Lennox! Great service! Very professional! We are very impressed and love our new Lennox Furnace....very efficient and quiet! :)
Holly Sajda
Holly Sajda
Feb 07, 2020
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Chris and Dave are amazing. Chris helps get you taken care of quickly. Dave is very knowledgeable and trustworthy! i would highly recommend them!!
Jim J.
Jim J.
Sep 25, 2019
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Our house was built in 2001 and we have used many local services for the yearly service. Today was our first service with John Lock Services and the service was the absolute best service to date. Thorough, professional and above all honest.
W. W.
W. W.
Mar 20, 2019
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Wow with a capital W!!!
Today John Lock installed a split system AC unit at our home and what a super job!
First thing is the rolled out the tarp for walking and fallen debris. I cannot express how nice it feels to know that this local business KNOWS their professional trade! Each team member is professional in appearance; professional in knowledge and experience; and most importantly - respectful and friendly.
We've had one other company years ago and besides having questionable work ethics, not sure if the technician had the experience and knowledge to swing a wrench. Basically that company
Anne Green
Anne Green
Jan 03, 2018
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Thanks to the Gentleman who put in my new furnace today. It is nice and toasty warm and he was awesome! He even shoveled my porch for me and everything was taken care of just as I got home. He explained to me how it works and even offered up some good suggestions when I mentioned my nephew is just starting to toddle. Your lucky to have such a good guy on your team! Thank you so much!
Erik Fischer
Erik Fischer
Jan 03, 2018
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This place is downright awful. I called yesterday because my heater was giving off an awful toxic smell. So the guy gets here and literally accidently breaks a fan to our inducer and claims that was the problem. Well as soon as he left our heater was not working at all and had to sleep with NO HEAT. I was not calling back because of the lack I… seen. So I called another place today had them come fix it and it turned out to be my motor run capacitor and alot of collected dust in a vent. Not saying my furnace isn't old and could use a new one but what place would leave you without heat...
Kimberly G.
Kimberly G.
Feb 27, 2017
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It isn't commonplace to find a service company that doesn't rip you off. This is one of them! Our furnace started making a very scary sound and stopped working. Jerry found it to only be a nut that had worked it's way off! Any other company would have charged us $600 for a new unit. He cleaned our furnace (found out that we had filter in wrong way) and noted on our furnace the correct way to install filters in the future. We would never use anyone else!!
Sara M.
Sara M.
Nov 22, 2016
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Prompt and friendly service. My furnace stopped working the other day, just as it started getting very cold. They had a technician here by 9:30am, and we are back up and running an hour later. My pets are happy now that we're all warm and toasty again. Just some routine maintenance. Gave us some coupons too if we need additional services in the future.
Gary M.
Gary M.
Nov 23, 2014
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I had John Lock put in a stand by generator at my home a few years ago. I've had a considerable amount of problems with it. When I called John Lock, I was told that they only repair or replace the battery and they don't do repair work!! I have to call another company that works on generators. Expect a call right back from the owner when he's selling you something, do not ever expect a call back from him thereafter.
I would never do business with John Lock again, ever!!! Had they been honest and told me they didn't service the generators that they sold, I would have never spent