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Lockport, IL - Furnace & Air Conditioning Service, Repair & Maintenance Contractor

Pinnacle Heating & Cooling is proud to serve the Lockport community!

We are proud to be part of this community, serving your heating and air conditioning needs. Whether you need repair, replacement or a new installation of a furnace, air conditioner, heat pump or air filtration system, we get the job done right the first time. Our certified technicians service all furnace and air conditioning make and models.

Please call us today at 708-301-0170 to consult with our home comfort specialist.

Our Work in Lockport -
33 Reviews


Jim Fiacchino
Located in Lockport

New Lennox Merit 4-ton AC Installation

Sal was great to work with. He made me a great deal with. He took care of the new install very fast and made sure it was done right. thank you again!
Service: New System Installation
David Yokup
Located in Lockport
Sal really helped me out Kudos
Service: System Repair
Dan Nassar
Located in Lockport
I spoke with many companies for my furnace/ac replacement and Pinnacle was the best match. They supply a good product at a decent price. I appreciate Sal's honesty and that he explains what you currently have for hvac and what the best overall solution would be for your house. Also, the crew that installed the equipment was professional and paid attention to detail
Service: New System Installation
Margaret Stl
Located in Joliet

We recommend them to everyone!

We love Pinnacle! Sal and his team are simply the best. We’ve used them for several years for everything from our furnace, air conditioner and even water heaters! He is very responsive, knowledgeable and treats you like family! We recommend them to everyone! Keep up the good work : )
Service: System Repair
Joy Puskaric
Located in Lockport
Service: System Repair
Located in Lockport

Completely satisfied with the results - five stars!

I would recommend using Pinnacle for your HVAC needs - they are very thorough and take the time to explain the service and repair process. In addition, Sal and his team followed up to ensure that we were completely satisfied with the results - five stars!
Service: System Repair
Hans Schmidt
Located in Homer Glen
Service: System Repair
Diana Maggio
Located in Lockport

Would never call another company

We found this company several years back when we were really in a pickle. Sal came out and did amazing, been using him since. Would never call another company
Service: New System Installation
Terry Giacchetti
Located in Lockport

Takes the time to explain his work in detail,

Found Sal almost 10 years ago after a service call with a BIG name service provider, which I made "for all the right reasons", amounted to a $600 charge for adding some coolant and changing out a contact. I've never looked back. Really appreciate the fact that he takes the time to explain his work in detail, even if much of it is over my head. He recently installed a new high-efficiency Lennox system in my townhouse, and quite honestly, even after having some history with him and his company, I anticipated - as is prone to happen in the service industry - that he would end up charging me more than what he originally estimated. Nope. I truly believe he's a man of integrity. He is more responsive than any service tech I've ever worked with. His prices are reasonable. The new system looks and runs great. Hoping he never retires, because I feel like I have found "my guy" for all things HVAC. Highly recommend!
Service: New System Installation
Jose Ontiveros
Located in Lockport
Service: System Repair
Nirmal S.
Located in Lockport

Look no further, ladies and gents!

Sal and Sam are shining examples of what HVAC contractors should be; I work in the industry on the commercial sales side, so I hold technicians to a high standard with their work, professionalism and ability to problem solve - Pinnacle has bested any other group I've hired in the past, so I only use Sal and Sam for my work (it's like finding a mechanic for your car that loves your car as much as you do!) I have recommended Pinnacle to not only customers of mine needing residential service/replacement, but also to my parents for their HVAC needs. Look no further, ladies and gents, your optimal choice for HVAC contractor is here! Thanks, Sal and Sam, for all the work you've done for me and my family throughout the years!
Service: New System Installation
Rick J.
Located in Lockport

Quality of work is above any other contractor!

Pinnacle's response time and quality of work is above any other contractor! Always out the same day when emergencies have arisen. I have used them in several residences and also in commercial locations, and refer them constantly. High quality of work matches their fair pricing.
Service: System Repair
Margaret S.
Located in Lockport

Treat us as Family!

I can't recommend Sal at Pinnacle enough! They have been our go-to company for all of our furnace, air conditioning and even water heater needs for the last several years! I know I can count on them for their honesty and stellar work, all while treating you as family!
Service: System Repair
Located in Lockport
After being out of town for a couple of days and having coming home to no heat we called Sal and he was out within in a couple of hours. He got my furnace going quickly and fixed my humidifier as well. He was very reasonably priced as well especially since he came out on a Friday night definitely after hours. He explained everything to me and made sure I understood how to perform the maintenance needed. I will definitely have them out before summer to service the AC. Great service that I will recommend to others. My wife and 7 month old son were very happy Pinnacle came out.!
Denise B
Located in Lockport
Phenomenal Service! My 20+ year old furnace quit working. Pinnacle answered my call and had a service tech out within hours. With such an old furnace, anything could have gone wrong. Their honest technician immediately diagnosed the minor problem and fixed it quickly and quite reasonably. He even got my humidifier working properly in minutes. The tech explained everything and informed me on proper maintenance. I highly recommend their services
Jerry O
Located in Lockport
I had PINNACLE install a humidifier in my home & their professionalism and work was great! I would definitely recommend them to anyone
Bill F
Located in Lockport
Sal and company are awesome. Had some issues with our furnace kicking off at what seemed to be random intervals. Sal and his coworker came by and with a few minutes diagnosed the issue and fixed it for us. He also took care of us on price as he always does. Pinnacle is a fair and honest company! Recommend them all the way!!!
Sharon K
Located in Lockport
Sal came out quickly to fix our air conditioner problem. He showed me the proper way to change the filter. He was very much knowledgeable on our Lennox unit. He quickly diagnosed and fixed our problem at a very fair price. I would highly recommend him to all friends and family.
Located in Lockport
I called Sal he came within 45 minutes. He accessed the problem right away. He put a new connector into my air conditioning unit because it was broken and then he cleaned my furnace. he was a good guy he showed me how to put the filter in. What a nice man he was a life savior. I will definitely have him out again. I can't thank him enough thank you Sal.
Jody E
Located in Lockport
Thank you Pinnacle, Sal, and your helper today for replacing our squirrel cage/motor for our furnace/air conditioner and doing so in such short notice, during a holiday week and one of the very hot & humid, dog-days of summer! The expertise of your staff to hear and know exactly what was wrong within minutes of arriving at our home, fixing the issue so quickly (within 3.5 hours), and taking the time to explain the whole process made my day. I am very pleased and excited that we are able to have a cool house once more and to have Jacob (4 year old) and Jessa Lee (9 month old) back in their home tonight! I will definitely recommend your company to our neighbors, family and friends. The Estrada Family
Jose O
Located in Lockport
I called Pinnacle on Tuesday June 12, the gentleman told me he happened to be in the neighborhood. Not even an hour later the crew is at my front door ready to repair my outside AC unit. The price was fair and their service was fast and flawless.
Will S.
Located in Lockport
A couple weeks ago our water heater went out on a Friday night. I googled for a water heater repair company in our area, and Pinnacle was one of the first that came up. I called and talked to Sal at around 9:30 PM and he quoted me a price to replace the motor on the water heater and said he'd come by the following morning. The next morning he came out and had everything repaired by noon. Later that night, our water heater was not working again and Sal came out and discovered that our chimney had a blockage due to a poor job by our home builder, and he even got up on the roof and corrected that problem as well. We have had no issues since, and Sal even called back to confirm everything was good the next morning. I couldn't be more pleased with the service I received, and will probably have Sal out to repair a couple of other things he identified while repairing the water heater. I highly recommend Pinnacle for any HVAC needs anyone may have!
Located in Lockport
Called Sal tonight around 8 pm because my furnace was only blowing cold air and its supposed to get down to 5 degrees. He happened to be at the store a few blocks away and was over within 15 min. Got my furnace working again in a few minutes (needed a quick cleaning to work for a few days) and wouldn't take any payment just said & be sure to keep me in mind for future repairs and when you get this cleaned. I just didn't want you to go through this night with no heat. I will be having Sal come back next week to clean it completely and will recommend him any time. Nice to know there are still good people out there that are concerned about their clients, not just concerned about making money. Thanks Sal!
Located in Lockport

Great Service!!

Great Service - all-around solid company by AC repair- Pinnacle does a superior job. The client service and accommodation was outstanding. Sal was able to come out to repair my AC unit on short notice and provided a very thorough and professional opinion and repair. He took pictures of the AC unit and offered advice on how to get optimal efficiency. I would definitely use Sal/Pinnacle in the future. Thanks for your help.
Nirmal S
Located in Lockport

Pinnacle will spend the time to make it right!

Fantastic Overall Offering & Customer Service - Pinnacle will spend the time to make it right! I was having issues with my AC throughout the summer - I connected with Pinnacle during the winter. They performed a very thorough Heating check-up for me, so I called him to get advice on the resolution to the issue (Thermostat set at 70, Space showing 79). He advised that, while it could be a leak in the coil, he would want to check it out to make a firm determination. He was on-site 24 hours later, checked the entire system out, and was correct in his determination. Sal spent an hour walking me through my options, and helped me choose a 16 SEER Trane Condensing unit and cased coil, based upon a desired payback and how important it was for my system to run effectively. Sal arranged to have the units delivered on Friday evening, and was back on Sunday to complete the project -and the pricing was extremely competitive. I highly recommend Pinnacle for all HVAC needs!
Service: New System Installation
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Job Site Visits

Sal Esposito
Garage unit heater fan motor not spinning up. Control board motor relay contacts burned up on control board. ordered new control board.
Sal Esposito
Installed Carrier TP-PAC thermostat with EIM module
Sal Esposito
Blower motor defective. Water damage throughout. Replaced blower motor and control board in that order.
Sal Esposito
Reconfigured communicating Carrier Infinity furnace with single-stage non-communicating furnace. Unit is oversized and mis-configured.

Cooling lead "Y" connected to "Y1" terminal.
CF (Continuous fan) setting at 2,000 CFM. Reset to 700 CFM - minimum allowable with this unit.
AC blower speed reset to match 3.5 ton AC at 1440 CFM. Was 2,000 CFM.
Customer has 3.5 ton AC system with 5-ton blower.
Air return only using one side of furnace. Derating to 1440 cfm probably solved issue.

About Lockport, IL - Happy to be your hometown Heating & Air Conditioning Contractor!

Lockport is a growing city in northeastern Illinois. It is situated along the banks of the Des Plaines River and positioned in Will County. According to a United States Census Bureau report, Lockport became populated by approximately 25,434 people in 2017. Lockport is estimated to be the eighteenth most populated community in Will County, Illinois.

Residents of Lockport enjoy life in a charming Midwestern city. Lockport became incorporated in 1853 and has since grown to a become a successful city that features a beautiful downtown area, many parks, the Broken Arrow Golf Club, many schools, places of worship, and shopping centers that provide residents with access to shopping and dining opportunities. Also, the nearby location of Chicago, Illinois provides residents of Lockport with access to world-class entertainment, attractions, shopping, and dining. In the City of Lockport, Illinois, there is something for everyone.

It is necessary for individuals living in Lockport, Illinois to have access to cooling and heating systems inside their homes. Lockport is in a region of the United States where homes become susceptible to a variety of weather conditions during the summer and winter seasons. The average daytime temperature highs range from the low to mid-80s during June, July, and August. When heat waves pass through Lockport, temperatures rise above 90 degrees Fahrenheit. Central air conditioning units provide sufficient cooling power to Lockport homes during the summer seasons.

In addition to cooling systems, heating units like gas furnace, boilers or heat pumps should become installed inside the homes of Lockport residents. During the long winter seasons, the average daytime temperature highs range from the low to mid-30s. At night, temperatures fall well below freezing. Also, snowfall is common during the winter months in Lockport. Professional HVAC technicians recommend gas furnace, boilers or heat pumps for installation in Lockport homes. During the long and harsh months of winter, gas furnace, boilers or heat pumps protect residents and their homes from potential damages caused by winter weather conditions.