Markgraf's Htg & AirHVAC Services in Lake Zurich
Markgraf's Htg & Air specializes in Carrier HVAC installation, repair, and maintenance. Proudly serving Lake Zurich and the surrounding areas, we deliver reliable HVAC solutions to meet your home's needs.
HVAC Repair and Installation Services
Air Conditioner Repair & Service
We specialize in fast, reliable air conditioner repair and service to keep your home cool and comfortable. Whether it’s a minor fix or a major repair, we're here to ensure your AC runs smoothly when you need it most.
Furnace Repair & Service
We provide expert furnace repair and service. Our skilled technicians are ready to quickly diagnose and resolve any issues, keeping your home warm and comfortable year-round.
HVAC System Installation
We provide expert HVAC installation to keep your home comfortable year-round. Whether you're replacing your current system or installing HVAC for the first time, we'll help you choose the right solution for your needs and handle the installation with precision and care.
HVAC Maintenance
We offer annual HVAC maintenance to keep your system running efficiently and help prevent unexpected breakdowns. Through a thorough inspection and tune-up, we ensure your heating and cooling system is ready to keep you comfortable all year long.
About Markgraf's Htg & Air
Trusted HVAC Professional in Lake Zurich
Leave a ReviewCarrier.com Reviews
4.96 out of 5(57 reviews)
Excellent and reliable
Margrafts provides throughl and reliable service. They are professional and curtious and stand behind there work. I have had them install twice in the past 25 years new furnances and a/c. I would highly recommend this company because they truly deserving because they are an excellent company
Cindy
-
May 22, 2025
Verified Purchase
Expertise:
5
Solve Problems:
5
Service:
5
Outstanding Service!
Service was outstanding!
Rich
-
April 15, 2025
Verified Purchase
Expertise:
5
Solve Problems:
5
Service:
5
consistently provided me with great service at reasonable cost for about 20 years.
I've used Markgraf's for about 20 years for service and now, installing 2 new condensers in the past 2 months. They do an excellent job with service and new product installations.
Bob
-
August 17, 2023
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Professional and Trusted A++
Seamless fix to a BIG upgrade. We were having issues with our 24 year old furnace/AC. They did a great job of assessing and we decided to go ahead with complete replacement. They were quick to get the new system delivered and installed to cause no disruption to our home! THANKS for a great job!
Lori
-
August 06, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Good HVAC service
I am satisfied with Markgrafs.
Dominic
-
July 08, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Best Heating and Air company
We would only use Markgraf's Htg \& Air. Trustworthy and efficient. Always people you can count on.
chris
-
May 10, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Satisfaction
They did what they promised and stood up to it.
Susan
-
March 07, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent Company for Heating/AC
I've always been pleased with Markgraf's service
Susan
-
February 28, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
The were very honest about the work to be done and their recommendations. They also were able to get my furnace right away and have it installed 2 days later!
I would highly recommend them.
Jennifer
-
February 21, 2022
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent Service
Markgraf provided excellent service in installing an all new furnace and AC unit in our new home, all while accommodating our busy move\-in schedule.
Mark
-
October 22, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent Service and Support
A friend told me about Markgraf and how satisfied he was. I have been working with them for several years, they are very fair, they listen to the issue, they diagnose well and are extremely professional. Everyone form the Office staff to the technicians. I am not technical and they make me feel very comfortable when they explain things. They are very patient.
Mr
-
September 18, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Great service
I was very happy with the excellent and professional service we received. The technicians also seemed to really like their jobs. They were very friendly, smiled a lot and had fun.
Sue
-
August 17, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Got the Job done!
We ran into unexpected problems due to previous work that had been done. He worked the problem until it was resolved! It was a long day, but he didn't leave until everything was working perfectly!
Janet
-
July 27, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
excellent
Men came on time. Very polite. Worked hard and did the installation professionally.
Alan
-
June 22, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Great/fast service.
Great/fast service.
Edgar
-
June 16, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Perfect Heating/AC Company - Customer for 30 Years
Markgraf has been my dealer/provider for 30 years. I highly recommend this very professional company. I rely on their advice. Both Roger for maintenance and Jake for installation are trust worthy, professional and sound. Inside contacts Linda and Beth are excellent and helpful, always.
Patrick
-
May 29, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent service for many years
Markgraf has serviced all our HVAC needs for 20 years\-\-Excellent
Thomas
-
May 18, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Yes, they are reliable and fair priced.
Happy customer
Roberta
-
May 15, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
MARKGRAF RELIABILITY
We have been using Markgraf for 17\-18 years. They did the initial installation when the house was build and, they have been maintaining our heating and cooling system since.
Dan
-
May 05, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
New Carrier Heating System
Efficient and helpful service
Jane
-
April 19, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Relieved to have new furnace and air conditioner for this year!
Furnace stopped working with a literal bang \- apparently the circuit board. Replaced on the same day and scheduled old Freon using air conditioning unit for early spring \-\- on time, went smoothly.
Gail
-
March 24, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
New furnace replacement
Furnace failed while out of state. Excellent response and was able to replace the unit the next day at a fair price. Thanks
rob
-
March 23, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Quick Service
They addressed the issue quickly, were very knowledgeable and courteous.
Nick
-
February 26, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Consistently reliable
As a current Markgraf customer, I have always relied on their expertise and courtesy; I don't ever need to look elsewhere for my heating and cooling needs.
Mr.
-
February 13, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Fantastic, Professional, All around nice guys!
The gentlemen who work for Markgraf are top notch. They were very professional and so respectful of my home. It was a pleasure having technicians in my home that really enjoy their profession. Thank you for the speedy appointment on the initial emergency and the great service.
Gwenne
-
January 29, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
New Furnace Installed
Roger was friendly, helpful, and professional!
Rita
-
January 28, 2021
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Good Service
Friendly and knowledgeable.
Bo
-
October 09, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent experience!
Hada new furnace installed.Everything went better than expected.From start to finish very positive experience with the Markgraf's team!
Jim
-
October 06, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
HVAC repair following a storm
We had the tri\-fecta of things hit us last week: tornadic winds caused our provider (ComEd) to not be able to service us; then the generator we have went out; and when the power came back on, the air conditioner went out. Not sure of the exact sequence . . . could also have been "looping" problems, Kudos to markgraf's for gettig us back and running by the middle of this week.
steven
-
August 20, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Professional, Safe, and Fast
Had new AC and furnace installed during a heatwave in a pandemic and could not have been happier with the service.
Brian
-
July 28, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
AC
Best of the Best
Mike
-
July 22, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
professional
They are professional and knowledgeable.
Bob
-
July 02, 2020
Verified Purchase
Expertise:
5
Service:
2
Solve Problems:
5
Great overall service
Installation went great
Steve
-
June 05, 2020
Verified Purchase
Expertise:
4
Service:
4
Solve Problems:
4
Great Installer
On time and installed correctly
Steve
-
April 17, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
100% satisfied customer
Excellent service. On time. Professional.
Nile
-
March 19, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
new carrier furnace
loose thermocouple wires on furnace control board caused early heating failure. Fixed very quickly the next day. Attention to all other details of installation were fantastic.
Jim
-
February 18, 2020
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Fast work and every efficient and explained the new system and Thermostat operations.
On time and cleaned up all equipment they replaced and detailed the furnace ducting, super
Marylou
-
September 27, 2019
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Fast, not furious
Of course, hottest days of the year forecasted and our AC went out. At first, it looked like a motor on the furnace could be fixed. It was credible that the cost of a new furnace was nearly the cost replacing the motor. Outside, our AC unit dated from 1974. We were never about cooling. Everything was installed, no plants sacrificed, and all trash was taken away (hopefully for some recycling). All personal were personable.
Mr.
-
August 18, 2019
Verified Purchase
Expertise:
5
Solve Problems:
5
Markoff
Excellent
Mr.
-
August 15, 2019
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Beat The Heat
Woke up in middle of the night and inside temp was up. Left a voicemail with Markgrapf. They called as soon as they opened. Technician arrived by nine. Did some fixes and then determined best to replace the unit. We agreed. Heat index around 100. Unit arrived early afternoon and installed by 5:00!
Mr.
-
August 14, 2019
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Outstanding service
Fast response, reasonable price and knowledgeable
Christina
-
August 10, 2019
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
New AC
Consistently high quality and professional.
Greg
-
August 01, 2019
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Excellent
We used Markgraf?s for both our home and rental properties. They always are friendly and extremely accomodating. Work is always done in a timely manner. Technicians are polite and efficient.
Carrie
-
June 07, 2019
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Fanastic customer service
My heat went out overnight on Thursday. Markgraf came out Friday afternoon. After diagnosis, they gave me some options. I chose to switch out the furnace since mine was about 15 years old. My work schedule is very tight but Margraf's Heating and Air was able to install a new furnace the next morning. A few hours later, I was toasty warm. A big thanks to Michael and Petar, they are very skilled and professional technicians.
Gwenne
-
March 10, 2019
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Very professional!
The architect/contractor recommended this company. I was very pleased.
Mrs
-
March 01, 2019
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
HVAC install
professional and very informative about products local business and nice to do business with
Mr
-
January 23, 2019
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Guerin House
satisfied!
Mr
-
September 21, 2018
Verified Purchase
Expertise:
4
Service:
4
Solve Problems:
4
Great service!
Fixed our A/C problem in one day over Labor Day weekend.
Mr.
-
September 04, 2018
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Markgraf Carrier Installation
The Markgraf team did a great job.
Mr
-
August 22, 2018
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Glencoe Review
Generally pretty good, but needed return visit to re\-adjust unit.
MR.
-
August 10, 2018
Verified Purchase
Expertise:
4
Service:
4
Solve Problems:
4
Couldn't Be More Pleased!!
Extremely pleased with professionalism and responsiveness.
MR.
-
June 26, 2018
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
installation of new units
Good overall experience \-
Mr
-
June 19, 2018
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Markgraf Air Conditioner replacement review
Replaced my Unico system and Carrier condensor. Cared about doing he right thing. Efficient and clean.
Mr
-
May 24, 2018
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
bbcruiser
MARKGRAF'S, A FAMILY OWNED BUSINESS TEAM HAS BEEN SERVICING OUR HAC FOR THE LAST TWENTY YEARS AND HAS ALWAYS EXCEEDED OUR EXPECTATIONS. THIS LAST INSTALLATION WAS DONE ON TIME AND WITHOUT ANY ISSUES. WE ARE PLEASED WITH THE NEW AC SYSTEM AND LOOK FORWARD TO MANY TROUBLE FREE YEARS OF CARRIER SERVICE.
Mr. and Mrs.
-
May 22, 2018
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Quiet!!
Quick, professional installation, Great Job!
Mr
-
May 11, 2018
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Installation of 3 AC's./ 2 ton, 3 ton and 4 ton units.
Three new units were installed without any drama. The installers new their job. We have only used the new AC a few times due to cool weather. I are expecting the units to work better and more efficiently in hot weather compared to the old units.
Mr
-
June 02, 2017
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Replace Malfunctioning Carrier Furnace with new Carrier Furnace.
MARKGRAF'S HTG \& AIR is a professional highly trained \& skilled family operation who prides themselves in quality customer service and care. Their attention to detail, reliability and customer satisfaction makes them the only HVAC company that I will use and refer others to. I have been using MARKGRAF'S HTG \& AIR for over 20 years after being referred by a customer who employed them for over 30 years in his large business building as well as his home. MARKGRAF'S HTG \& AIR makes me feel like I am a valued customer treating me with attention and respect which is something very rare to find these days! MARKGRAF'S HTG \& AIR is a trustworthy, dependable, honest and fair company. They are true masters of their trade and I know that I can always depend on them for all of my HVAC needs.
Linda
-
February 18, 2017
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
Page 1 of 19