Master Mechanical Is Your #1 Furnace Repairs and Heating Repair Company


We specialize in Heating System installations and Furnace Repairs

We are your number one air conditioning company and home heating service specializing in furnace repairs, heating system installation and air conditioner repairs and installation and  in Mt. Prospect, Arlington Heights, Elk Grove Village, Buffalo Grove & NorthWest Suburbs!

At Master Mechanical, we set up your account on a very personal level. An heating repair technician is assigned to your family to ensure that you feel comfortable with the person coming into your home all year round, year after year! From the harsh winter to the heat of summer, your technician will ensure you get the satisfaction you deserve for your heating systems and central air conditioning system. We offer a preventative maintenance and repair plan that will help you save money and avoid costly repairs in the extreme weather conditions.

Visit our Comfort Club page for more information on air conditioning contractor services and preventative maintenance to protect your investment! Your central air conditioning system can cost you tons of money in repairs when not maintained regularly.

Master Mechanical Offers Financing with Approved Credit for Your Air Conditioner Repairs

As your air conditioning contractor, we pride ourselves in our relationship with Wells Fargo and the amazing opportunity of financing with approved credit we can offer our clients. As a family owned business, we are no stranger to the burden a costly repair can be on a family’s finances. You can find the link to apply for financing right on our site!

A family owned and operated air conditioning contractor offering qualified technicians to provide regular preventative maintenance that will ensure you get the most from your unit. Your heating and air conditioning repair technician will be upfront, honest and reliable. Alongside preventative maintenance, they can also offer helpful tips to keep your energy costs low.

Take a look at our reviews on Angie’s List and hear about the service we deliver from your neighbors! We are grateful for our veterans and elders, offering both senior and veteran discounts to qualifying clients! Also, 5% of tune-up charges are donated to the Wounded Warrior Foundation in our support of our Veterans.

Master Mechanical, Your Heating Systems and Air Conditioning Contractor - We Do It All!

We want to offer you the most accurate information to help you make an educated decision for your family to live comfortably, both physically and financially. Your family’s comfort is our priority and we treat every call as such, this also means we do not charge extra for emergency heating and air conditioner repairs.

Central air conditioning system repair is not our only specialty. We are extremely global in creating comfort in your home for all seasons!

Whether you’re hot or cold, our services have got you covered! Here’s a list of the BIG ones! You can visit our Services Tab for more details on our air conditioning contractor services.


As your residential air conditioning contractors, we can offer you discounts and coupons to help you save money on your next repair or service. Just ask!

We offer air conditioning repair for all makes and models for both residential and commercial central air conditioning systems!

  • Heating System Repair
  • Furnace Repair and Installation
  • Commercial Heating Repair
  • Home Humidifiers
  • Water Heater Replacement and Repair

Contact Us

  • Air Conditioner Repairs
  • Air Conditioning Installation
  • Commercial Air conditioning
  • Electronic Air Cleaner
  • Dryer Vent Cleaning

Emergency 24 Hour Furnace Repair and AC Company

We are there when you need it most! Right NOW! Serving Illinois Lake and Cook Counties, we are here 24 hours a day for furnace repairs and central air installation.

Give us a call at (847) 722-0000 to reach the BEST of the Mount Prospect Area air conditioning contractors!



Master Mechanical, your family owned, veteran owned HVAC local business, is proud to offer air conditioning repair, furnace repair, home generator installation, water heater replacement and all HVAC cooling and heating services in Southern Lake County, Northern Cook County & Northwest Suburbs of IL including the following areas!

Arlington Heights
Buffalo Grove
Des Plaines
Highland Park

Lake Forest
Long Grove Morton Grove
Mount Prospect

Park Ridge
Rolling Meadows


What People Say

"Tom, I want to thank you for your expertise, professionalism, courtesy and for the speed with which you fixed my air conditioner. I appreciate the quick response to my problem and the fact that you took time to explain what was going on and how you would make the repair. You stand behind your work and that is critical in the field you're in. It was a pleasure to do business with you and your firm."

Mary D.

"Master Mechanical has been providing great service for my restaurant for the last 5 years. They have never charged for any overtime or after hours calls and when something breaks, it's seems that its always on a weekend."

Andy Spentzos
Mr. Allison's Restaurant

"Tom, dealing with you on our recent major heating/air conditioning problem was a very satisfying experience. You're a first-rate diagnostician, identifying the problem, offering a range of good choices, and then doing the installation on schedule and within the agreed price was much appreciated."

Bob Crowe
Winnetka, IL

"Just wanted to say thanks for the new furnace and air conditioner that was installed. Everything looks great and works wonderful. Its amazing how much quieter the new furnace is. Thanks for a great job and I will be sure to recommend Master Mechanical to everyone that I know."

Mike P.

"We had a regular HVAC service for 30 years until they closed up shop a few months ago. Regular maintenance of HVAC equipment is one of the keys to a longer life for these expensive units and our previous service made sure everything was well maintained and in fine working order. We wanted to find another company with the same high standards of service. We searched and researched and decided to give Master Mechanical Heating and Cooling a try. I think we have a winner!"  Read Full Testimonial

Tony L.
Arlington Heights, IL

“It had been years since we had our HVAC serviced. I called Master Mechanical because their service sticker was on the unit. I know that sounds like a weak reason to select a service company, but the HVAC had been running fine for years, so clearly they couldn't be all that bad! It turns out they are wonderful.

We were given a two hour window for the appointment, but the owner Tom showed up exactly at the beginning of the appointment. We were expecting all sorts of bad news because we hadn't been doing any routine care. He reassured us and quickly went to work cleaning the unit. Only one small part needed to be replaced. I feel that the price he charged for both the part and service was very fair.

We were very pleased with the service and plan on using Master Mechanical again.”

Aaron G., Chicago HVAC Customer
Yelp Review

“My AC stopped working last nightI called Tom from Master Mechanecial at 7pm, he called me back within 5 min. An appointment was set for today. Tom arrived on time, he quickly diagnosed the issue and gave me the quote right away . His professionalism and friendliness were impressive! Especially he saves us on this hot weather:) Thank you Tom!!! ”

C.Z., Arlington Heights A/C Repair
Yelp Review

"Master Mechanical is all about Customer Satisfaction! Melissa was very kind on the phone when scheduling my appointment. Tom and his associate were on time to my home. Tom was very detailed in explaining my options with my air conditioner. I will always recommended Master Mechanical. Thank you."

David L.
Streamwood Air Conditioner Repair Review

“Thoughtful, efficient, proactive, honest, reliable. I have been using them for over ten years.”

Gary M., Evanston, IL

“Great find! Quick and timely service. Very knowledgeable and friendly. Came to fix our furnace because it wasn't turning on properly. He explained the problem to us and fixed it right away it for much cheaper than the handyman estimates we received!

He also was very helpful and answered some questions we had about our humidifier.

We were very happy with the service and will definitely be using Master Mechanical again.”

K W., Chicago Furnace Repair
Yelp Review

“I called Tom around 11 he showed up around 1 it was -7 outside and my furnace was not getting the house warmer than 63. Tom spent a an hour going over all of the trouble codes and the issue ended up being his guess which wasn't in the trouble codes. 

Turned out the problem was that my AC coil was clooged with dust and the furnace kept overheating because of it. Tom's initial assessment was that we would need to remove the coil and clean it $400-$500 and not something that could be done until spring, he then went the extra mile and found a way to access the coils and offered me the option of cleaning them myself to save money. 
I can dust and vacuum so I went for it and my furnace is working great! Tom could have milked this for another 2 hours and that would have added another $160 to the bill, instead he offered to come back to put the panel back in place. I will be calling him to service the furnace in the spring!”

Ken K., Mt Prospect Furnace Repair
Yelp Review

“I have used Master Mechanical for years. Each & every time has been a fantastic experience. Whether it is an emergency or just a general cleaning, the phone is answered right away or I get a call back within minutes. Its very easy to schedule appointments & they always do a great job at a fair price. I highly recommend this company, hands down!”

M B., Palatine HVAC Customer
Yelp Review

“Master Mechanical provided excellent & knowledgeable service. They installed our new furnace in less time than expected and cleaned up afterwards. They did a great job at a great price. We have used them in the past and they are always professional with exceptional service. We always recommended them to our family and friends. ”

Mary Holmes (Google+ Review)

“Tom came out last week to tune up our furnace which had been acting up. He was professional, on time, and took great care of our heater. My wife and with our baby for most of the visit but still had nothing but great things to say. ”

Matt A., Arlington Heights Furnace Repair
Yelp Review

“Tom at MM is a top notch, trustworthy professional. I recently moved to Mount Prospect and attempted to use a large company but was dissatisfied with the initial call. I found MM on yelp and all of the positive reviews were confirmed. He was forthright in my AC unit issues and fixed the issue on the spot. It was painless and I felt like I was well informed. I would highly recommend MM for everyone and will use the company for future services. We need more local contractors like this everywhere!”

Robert L., Chicago A/C Repair
Yelp Review

“These guys came, on a holiday weekend, with little notice to get our heat going. Pleasant, clean and reasonably priced service. ”

Robert P.
Yelp Review

“15 degrees at 10:30pm on a Wednesday. Called SEVERAL service companies. Tom called back immediately and arrived within 20 minutes. He had our problem diagnosed before he even got here! He was gracious and knowledgeable. Efficient AND affordable. We WILL have him back to tune up the system this fall to avoid any more issues. We highly recommend Master Mechanical and Tom. Semper fi, Tom!”

Robin T., Mount Prospect Furnace Repair
Yelp Review

"I would highly recommend Tom at Master Mechanical! He is dependable, friendly and extremely knowledgeable. He was not only able to find an obscure problem with our heating system, but fix it in no time. Tom was great and we will continue to use his services going forward!"

Sara W. (Yelp Review)
Chicago, IL

“I would highly recommend Tom at Master Mechanical! He is dependable, friendly and extremely knowledgeable. He was not only able to find an obscure problem with our heating system, but fix it in no time. Tom was great and we will continue to use his services going forward!”

Sara W., Chicago Furnace Repair
Yelp Review