COVID-19 Update
Herchenbach Mechanical will remain open and operating during this time. We are currently monitoring the news regarding the pandemic and are taking appropriate sanitary precautions to protect the health and safety of our customers and employees. Our customers’ safety and satisfaction remains a top priority during this time.

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Hear What Our Customers Are Saying

We called because we were having trouble with our A/C. They accommodated us with an appointment quickly. They also have great communication(text/email about our appointment time/day).Julian the technician was friendly and was great to explain what needed to be fixed in a way we could understand. We would definitely recommend Herchenbach to everyone! Awesome service!read more
Molly Fry
Molly Fry
02:45 26 Jun 21
Need your AC unit checked or repaired? I would like to give my wholehearted recommendation for Herchenbach Mechanical.Our unit was barely cooling the house and Curtis came out right away to look at it! Turned out that not only did it need more coolant but it also was seriously clogged with what is probably mostly cottonwood fluff.He fixed it quickly and gave us great tips on how to maintain our unit, plus a recommendation for a better app to control the wall panel software from our phones.So, kudos for Herchenbach Mechanical and thanks to Curtis for keeping us cool and comfortable!read more
Jennifer Mayer
Jennifer Mayer
17:45 12 Jun 21
Trace is super professional and friendly! Prompt and courteous service! Knowledgeable and helpful in explaining issues and options for repair. Highly recommend this company for your HVAC issues and maintenance. Very happy customer! 😁read more
Vanna G
Vanna G
16:58 11 Jun 21
Very professional and knowledgeable staff. Always look out for their customers and give helpful suggestions to keep equipment running well and keep usage costs down. We love Herchenbach and recommend to anyone who needs HVAC work! Trace has been especially helpful to us over the past year with some issues we have had-always thorough and careful work.read more
Lauren Dahlquist
Lauren Dahlquist
17:34 03 Jun 21
They were there within 20 minutes of contact and were very professional and thorough. Great work, good prices and reliable. Highly recommend! No wonder they’ve been in biz for 40 years! They installed a new AC system very quickly.read more
Bruce Kim
Bruce Kim
19:57 26 May 21
Curtis and his team were professional, courteous and efficient installing two new AC units/Coils, two new furnaces, two new filters, improved ductwork and a new nest thermostat in under 8 hours. System works beautifully and house climate feels great. I would highly recommend.read more
garjo27
garjo27
12:40 25 May 21
Great company. The install team is very professional and answered all my questions prior to leaving. They also provided a walk through of everything they completed. We considered four different companies to install our new AC and Herchenbach had the better unit and the better warranty at the better price.read more
Tom Robinson
Tom Robinson
17:10 24 May 21
Our AC went out Saturday afternoon, we were able to speak with the technician on call in just a few minutes.Trace came when he estimated and was able to get the AC running again. He was professional, courteous, and knowledgeable and we will ask for him again. We appreciated the excellent customer service that Herchenbach Mechanical provided.read more
John Hodnik
John Hodnik
14:16 24 May 21
We just had our AC and furnace replaced. It was an incredibly positive experience. The owner came out personally for the walk through and estimate, explaining things clearly along the way. Was able to work with my available budget. Installation team finished in half the time quoted and again explained everything to me very clearly. Very professional, kind, and thorough. Will use them for all my HVAC needs!read more
Kyle Anderson
Kyle Anderson
16:48 17 May 21
Trace & ?Curtis visited our house to give us estimate for new HVAC system. They wore masks and put on shoe covers. Both were very professional yet personable. Every question was answered thoughtfully and thoroughly. So far their 5 star rating rings true!read more
Ann Brennan
Ann Brennan
17:58 23 Mar 21
I wasn't happy when my "antique" furnace "crapped out" in sub zero temperatures about a week ago, but in under 7 days, we went from making the initial call to Herchenbach, to getting our new Carrier Furnace installed yesterday. It was an unbelievably simple process from start to finish. I got 3 quotes sent over via e-mail the first morning, they were all explained to me thoroughly by Curtis, as HVAC is definitely not my thing, and I chose one of the options that same day, applied for the financing on their website immediately following, was approved 10 minutes later, and they were out here 4 business days later doing the work. Hilllary in the office was fantastic, she remained patient with me, considering all of my questions, as I was nervous about spending the money suddenly, but they could not have been better as a team. The 2 installers were great as well. With the snow melting, I was worried about mud, but they laid down tarps from the entrance all the way downstairs to the furnace room. It was a total non-issue. They got the job done, extremely professional, answered any questions I had with knowledgeable answers, and including demolition, complete install and testing, in 6 hours. It was unbelievable. The Carrier system is so quiet compared to the unit they replaced, and the smart thermostat is so cool as well. Anyway, I would highly recommend Herchenbach and Carrier to anyone looking for a new Furnace and/or A/C system. They will be back out in April doing my A/C system. Looking forward to it! Keep up the good work.read more
Tom Lusinski
Tom Lusinski
03:21 25 Feb 21
They are the type of company that when you call and use them, you save their information and never call anyone again. 1st time user and the experience was the best of a life time. Nothing more to say. Fast - Quick and $$ conscious.read more
John Zimny
John Zimny
15:48 20 Feb 21
We had issues with both our AC and furnace and they came back several times to fix the issue. We ended up getting a new AC and furnace and they were professional and friendly. I would highly recommend Herchenbach Mechanical.read more
Kelly Deiler
Kelly Deiler
05:55 10 Feb 21
I called and they were so helpful. Mike showed up within minutes! He was on his way home when he was dispatched and turned around and came to my house to help us with our furnace. Very nice and knowledgeable. Very reasonable price, too. I hate being over charged and I'm glad I wasn't! I will recommend this company to my friends and family.read more
Chloe Jay
Chloe Jay
21:37 05 Feb 21
Our longtime HVAC guy retired and sold his business to Herchenbach. The transition for me was no problem as I have known Dennis and Sharon Herchenbach for years. Our 17 year old furnace died on the coldest day of the winter. Everything about installing a new furnace was smooth sailing. The tech was friendly, knowledgeable, thorough, and quick. Very happy with the price and entire process. While I will miss our retired HVAC guy, I am looking forward to working with Herchenbach going forward.read more
Scott Phillips
Scott Phillips
16:04 28 Jan 21
Honesty and Integrity exemplied! We were without heat and had been deceived by a company with which we had been long time customers. We did not have any history with Herchenbach but had seen their trucks locally. We explained our situation and we were prepared to buy a new furnace. After consideration, we were advised to call a local certified Lennox dealer because the broken part of our furnace should be under warranty. They unselfishly recommended a different company. This act of honesty, integrity and unselfishness saved us thousands of dollars. I was not a customer and they did this for me! I can only guess what they can do for their current customers.read more
Lynette Pittman
Lynette Pittman
16:32 23 Jan 21
My furnace went out early morning January 20th. On my daughter's recommendation (who had her furnace and A/C replaced by Herchenbach a year ago), I called Herchenbach, and they came out the same morning. They told me my 23 year old furnace (A/C same age--both original in this house) needed replacing, explained options, and gave me quotes on site. After accepting one, they came out at 7:30 AM the following day and replaced furnace, A/C and humidifier by 4:30 PM. They were extremely polite, efficient and did a complete clean-up after completion. They also thoroughly explained any differences in operation with new equipment compared to the old. I would highly recommend Herchenbach.read more
Richard Booy
Richard Booy
20:03 22 Jan 21
Mike is always knowledgeable, courteous and professional! He has been servicing our home for many years. We have been a customer for over 15+ years. Herchenbach has kept our A/C and heating worry free. Thank you for your excellent service!read more
Gina Borkowski
Gina Borkowski
16:11 30 Nov 20
I use Herchenbach Mechanical for both my home and my workplace! They are reliable, knowledgeable and great to work with. I find their pricing competitive and the overall service experience is outstanding!read more
Rose Lauing
Rose Lauing
19:29 20 Nov 20
We appreciated how cautious they are in these Covid times. The technician arrived on time, masked, and with all tools in hand. He worked quickly and efficiently, and kept us well informed throughout the process and afterward. Very happy and will continue to use them.read more
Mary Pergander
Mary Pergander
15:04 16 Nov 20
We have used Herchenbach for a number of years. We needed a new furnace and air-conditioning system and stayed with Herchenbach to replace the old with the new. The two installers were prompt, efficient, courteous, and without a doubt the very best ever. They fully explained everything on the walk through. The clean up, by them, was excellent. I can not recommend this company any higher, except to say I would give them more than five stars if I could.read more
Eric Sundin
Eric Sundin
22:16 06 Nov 20
After working with Herchenbach staff to determine the right unit and good price for replacing our aged furnace, they quickly gave us an install date. Technicians showed up on time and did a really nice job of correcting a few errors from the original installation and reworking piping and duct work to provide maximum efficiency from the new unit. They were polite, careful to maintain social distance and mask usage, and were careful to avoid scratches when moving heavy equipment in and out. I recommend them highly.read more
Curt Lieneck
Curt Lieneck
18:37 04 Nov 20
Have used Herchenbach Mechanical for my heating needs for over 20 years. They have always been very professional and knowledgeable about my boiler system. Great company to do business with
Marianne Moss
Marianne Moss
14:16 22 Oct 20
Wonderful and knowledgeable service. Kind and caring people. Highly recommended.
Matthew Laubenstein
Matthew Laubenstein
19:04 09 Oct 20
Great company and most importantly - honest. They could have charged me a lot more on a job I called about that turned out to just be cosmetic. Instead, I was only charged the service fee. I would recommend to anyone and will be using them in the future.read more
Ryan V
Ryan V
16:27 29 Sep 20
Fair price, great professional service I can't recommend them highly enough
Joseph Wood
Joseph Wood
00:55 01 Sep 20
Great overall service. Best in the business and extremely thorough. Trace was our technician and he did an outstanding job. Highly recommend!
Kenneth Leibman
Kenneth Leibman
14:54 27 Aug 20
My AC went out in the middle of a heat wave. I called Herchenbach. Laura was kind enough to give me a same day appointment. Service Tech Trace arrived promptly. Trace quickly diagnosed and repaired my coolant leak. I’ve had a service contract with Herchenbach for over 10 years due to their continual responsiveness in caring for my needs. Sharon and Dennis Herchenbach built an outstanding business over many years. Now the reins are being turned over to the next generation, Curtis and Lauren, who will undoubtedly continue to modernize and successfully grow the Herchenbach brand.read more
Doug Suhling
Doug Suhling
15:13 26 Aug 20
We were so pleased with the responsive and professional service from Curtis, crew, and admin staff on the installation of our new furnace and A/C systems. Care was taken to evaluate our home, ductwork, and existing conditions to recommend the right equipment for our home. The project was more than just a sale - which is what I felt the competition was offering. I would highly recommend Herchenbach!read more
Heidi K
Heidi K
15:03 13 Aug 20
Noticed that my AC was not pushing out any cold air. Called and made appointment for them to come out and take a look. There was a leak said he could fix it but could not guarantee how long it would last. We decided to go with a new AC and furnace at the same time. Tres gave us a quote and we were satisfied so signed the contract. Before he left we had the appointment for the install date. They they showed up on time and completed the job in about 3 hours. They also ran the extra wire from the thermostat to the furnace to install a smart thermostat. So far we are very happy with the new units and would recommend this company to others. They know how to take care of peopleread more
Jeff Shep
Jeff Shep
21:01 05 Aug 20
This is my second time using this company over the years and very satisfied with the service of both of my technicians! I would definitely recommend using Herchenbach Mechanical Inc.
Tanya Beard
Tanya Beard
20:09 30 Jul 20
I have a very old Air Conditioner and Furnace and knew they needed to be replaced soon. I called ABC first and they told me my Compressor failed and that would be just about as costly to repair versus replace. I had them quote to replace the furnace and the air conditioner. I learned that you should always get a few quotes (No matter the situation). So I called Herchenbach (Mike?) to get a second quote on my air conditioner and furnace. The tech (actually the sales guy) came in and starting writing up the quote based on the details ABC provided me. The Tech from Herchenbach (Mike ?), on a whim asked me to turn on the air conditioner. When I did, he looked at me and asked if I would be interested in fixing it versus buying a new. Of course I agreed. Just by hearing the Air kick on, he had a hunch ABC didn't diagnose the issue correctly. He went an got his tools and retested the system. It turn out that I blew a the cylinder, not the Compressor. I fixed it for $176 instead of 5,000. He completed the quote to replace both my Air Conditioner and furnace and the quote came out to be substantially less than what ABC quoted. Herchenbach was extremely knowledgeable and I felt the company will go over and beyond to satisfy their customer. I will be replacing my furnace and air conditioner this fall and Herchenbach Mechanical Inc. will be the company I trust to complete the installation. They are amazing!!read more
Patricia Hurley
Patricia Hurley
21:10 29 Jul 20
Herchenbach installed our new furnace and air conditioner back in 2007, and they continue to provide the annual service on all units. We have worked with their technician Mike for many years, and their services and communication are excellent.read more
R Leppen
R Leppen
18:40 14 Jul 20
Had Curtis, Trace and the crew replace an A/C unit, add a humidifier, and repair our second A/C unit. They did a great job! We are now enjoying the sweet cool air. Highly recommend!!
Doug Gialds
Doug Gialds
15:17 08 Jul 20
Met with Curt Herchenbach who assessed my 32 year old furnace with respect to issues that had developed over the years. We picked out the right furnace with a two stage blower to alleviate the lack of airflow on the second floor. Ron and Matt installed my furnace, were.considerate of my home and courteous to me. I had some issue with programming the new thermostat and the company sent over another employee who knew the most about the thermostat and set it up for me in 5 minutes. Well done Herchenbach Mechanical! I’ve already recommended them to a neighborread more
Kevin Moss
Kevin Moss
23:30 04 Jul 20
Our tech Trace, was excellent and never gave up on repairing our AC. That's after another company was out the day before and overcharged the unit with freon. We'll be using them again in the future. Right now we're cool with a string of days in the upper 80s and 90s.Rickread more
Rick Bergling
Rick Bergling
13:39 02 Jul 20
These folks know how to operate an HVAC business. Great value and very professional people. Please support this local Gurnee business. You won’t be sorry!
Dale Hanson
Dale Hanson
18:33 29 Jun 20
Thanks for continuing to provide excellent HVAC service for me over many years!
Mark Agin
Mark Agin
17:58 24 Jun 20
Very polite and professional, actually arrived before the set appointment, did not try to sell. I would highly recommend this company.
Audrey Chesney
Audrey Chesney
01:10 05 Jun 20
This was my first time working with Herchenbach Mechanical Inc. and I cannot emphasize enough how helpful Mike was while servicing our AC unit. He went above and beyond, exceeding all service expectations. He is very friendly, professional, and I am very pleased with the reliable customer service and high quality of work.Sharon was also a pleasure to work with over the phone to schedule a service appointment as soon as possible. Overall, I am very grateful I chose Herchenbach and 10 out of 10 would recommend!read more
Emma Goforth
Emma Goforth
23:12 01 Jun 20
I have used Herchenbach Mechanical Inc and found them to be a very experienced and professional business. The technicians are honest and hardworking. I would highly recommend them.
Mike Dare
Mike Dare
18:15 12 May 20
We have been Clients of Herchenbach for 35+ years. Wouldn't ask for anyone else. Technicians are knowledgeable, honest and always on time or they email if delayed.
Jerry Coleman
Jerry Coleman
20:22 24 Feb 20
I have used Herchenbach Mechanical for a few years, and I have always been completely satisfied with the service they provide. This week Curtis Herchenbach came out on an emergency call and fixed our furnace extremely quick. I will not use anyone but Herchenbach and I would highly recommend them.read more
Patrick Volk
Patrick Volk
21:53 07 Feb 20
Honest, excellent work and great customer service. I have used them for 10 years without any issues. Highly recommend.
evelott .
evelott .
21:14 19 Nov 19
I had an outstanding experience with Herchenbach Mechanical's installation of my new furnace, air conditioner and humidifier. They also added zoning to resolve temperature variances in several areas of my home. I was on a tight time schedule to replace a 18 year old system that had quit working and they promptly came out to assess my situation and amazingly had a comprehensive quote back to me within hours that included three options for the furnace and air conditioner and two options for the new zoning solution. An out of town trip made it necessary to do the installation as soon as possible and they were very accommodating, starting the install within 48 hours after I gave them my approval. They earn my 5 stars for responsiveness, comprehensive options presented, price/value, product knowledge, and everyone that I interacted with at Herchenbach was very professional and pleasant to deal with. I am very happy to be a new customer and highly recommend them!read more
Rob Taite
Rob Taite
01:48 09 Nov 19
I have used Herchenbach Mechanical for years, I have always been completely satisfied with the service they provide. This week Mike Shaver of Herchenbach arrived on time to service our furnace and he took care of everything in a reasonable amount of time, and the cost is affordable.read more
Rebecca Anderson
Rebecca Anderson
16:14 26 Oct 19
Excellent Experience, I purchased my air conditioning from Herchenbach 2 years ago and the experience was exceptional. The installation process is so professional. When it came time to replace my furnace I only made one call and that was to Herchenbach. Curtis is wonderful to deal with and honest. The furnace installation was handled extremely well. I highly recommended Herchenbach and am proud to refer them to friends and family. I’m very confident you will be highly satisfied with your experience!read more
Lisa Lawrence
Lisa Lawrence
02:04 18 Oct 19
Herchenbach recently replaced our 27 year old AC and Furnace. We are totally pleased with the exceptional customer service and high quality installation work. The installation team was very hard working and efficient. The installers were friendly and took the time to explain all the features of our new system and high tech thermostat. And before they left they made sure their work areas were cleaned-up and spotless. From the bid/proposal to installation the process was smooth. I highly recommend Herchenbach Mechanical.read more
Jay Stearns
Jay Stearns
19:43 09 Aug 19
Herchenbach Mechanical just finished their installation of our new Carrier infinity heating and air conditioning system today, replacing a 23 year-old system. I must say my first impression is that the new system is outstanding. The installation went very smoothly, and the installers were very thorough, answered all of my questions and did a very professional and clean job. I would highly recommend Herchenbach Mechanical and the carrier system.read more
Peter Muhlbach
Peter Muhlbach
23:29 08 Jul 19
We recently called Herchenbach for a problem with our homes AC system. Curtis was right on time and was able to diagnose and fix the issue immediately. He was also able to simply explain the issue and how to plan and prepare for future potential problems. Great experience. Highly recommend Herchenbach!read more
Andy Kozar
Andy Kozar
19:24 03 Jul 19
Excellent Service. Definitely would recommend and would call again. Quick response time. Knowledgeable, friendly. It was nice having the actual owner here. Great personal touch.Thank you
Michael Snider
Michael Snider
14:51 02 Jul 19
Mike came out at 8pm on a Saturday within one hour of my call for emergency service! He was pleasant, professional and very informative. Had replacement parts on hand and got my a/c up and running in 25min, and even cleaned the outside of unit all for a very reasonable price. Can't thank you enough and would definitely recommend to friends and family!read more
Yelena Mironova
Yelena Mironova
06:44 30 Jun 19
Herchenbach Mechanical is fantastic, I’ve been using them for over 15 years. Really trust them with my equipment. Recently got me all digital with ecobees and let’s my dog out!!!
Steve Berman
Steve Berman
22:33 30 May 19
Accurate and competitive quote and excellent workmanship. I highly recommend Herchenbcch Mechanical.
Dennis Donnellan
Dennis Donnellan
21:16 21 May 19
I have been using Herchenbach ever since I moved into my home about a year ago. The prior owner had all their installation and work done by them. Our evaporator coil went out and they went out of their way to warranty it. Sharon and Curtis went above and beyond and did a great job. I would highly recommend them for all your heating and cooling needsread more
marc Kifarkis
marc Kifarkis
14:00 08 May 19
I made a call to Herchenbach on a Sunday afternoon after my boiler went hay wire. They made it over within a couple hours. They diagnosed the problem and were able to give me heat for the night. They returned the next morning once they got the part and got me back up and running.Excellent and prompt service always.read more
Ryan Doyle
Ryan Doyle
16:38 19 Mar 19
Curtis & crew have serviced my home for years now. Always prompt and efficient with reasonable pricing. Thanks again!
Melissa Miller
Melissa Miller
15:19 03 Mar 19
It is nice when you can find a company with genuine good and reliable service. Honest and very qualified Will use again Great people, great work and trustworthy highly recommended!
Mark Perritano
Mark Perritano
18:33 26 Feb 19
Simply the best!Honest, friendly, responsive, and highly competent. Superior professional service!Could not be more satisfied 😀
Richard Flanders
Richard Flanders
19:20 06 Feb 19
I had an outstanding experience with Herchenbach Mechanical's installation of my new furnace, air conditioner and humidifier. They also added zoning to resolve temperature variances in several areas of my home. I was on a tight time schedule to replace a 18 year old system that had quit working and they promptly came out to access my house and old system and amazingly had a comprehensive quote back to me within hours that included three options for the furnace and air conditioner and two options for the new zoning solution. An out of town trip made it necessary to do the installation as soon as possible and they were very accommodating, starting the install within 48 hours after I gave them my approval. They earn my 5 stars for responsiveness, comprehensive options presented, price/value, product knowledge, and everyone that I interacted with at Herchenbach was very professional and pleasant to deal with. I am very happy to be a new customer and highly recommend them!read more
Rob Taite
Rob Taite
17:50 19 Nov 18

Air Conditioner & Heater Repair Company Serving Gurnee, IL and Surrounding Communities

Whether it’s to combat the hot summer temperatures or the cold winter ones, your HVAC system plays an integral part in maintaining optimal comfort levels in your indoor environment. As with anything else you depend on, if you ignore your HVAC system for too long, it eventually will stop working properly. Not only will you sweat and shiver as a result, but your bank account will feel the impact of your negligence as well.

review us on google logoAt Herchenbach Mechanical, we know what it takes to keep your HVAC system operating efficiently so you don’t run into unexpected problems and expenses. Our team of certified technicians has the experience and the equipment needed to handle any type of job – big or small. Some of the services we offer to residents in Lake County, Illinois, include:

Affordable HVAC Service and Other HVAC Benefits

When it comes to your HVAC system, cost can certainly become an issue if you put your trust in the wrong home services company. The home comfort specialists at Herchenbach Mechanical Inc. know how hard you work for your money and do everything possible to ensure they offer the most reasonable prices in Lake County, Illinois, without sacrificing quality. In addition to savings, you can expect to also receive these HVAC benefits when calling on Herchenbach Mechanical Inc. to enter your home.

  • Insured HVAC contractors who are reliable and trustworthy
  • Flexible appointment scheduling and free home estimates on new equipment
  • Financing available with approved credit to those who need help covering costs
  • Factory authorized Carrier® dealer
  • Emergency HVAC service available 24/7/365
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three herchenbach vans

No Need to Fear, Reliable HVAC Service is Here

The last thing you want to face in the middle of a hot summer is an extensive and expensive air conditioner repair. And a heating repair during the frigid Illinois winter won’t be any fun either. Although most work on your HVAC system requires skill, it doesn’t make sense to avoid it until the worst-case scenario becomes a reality. Instead of hoping for the best but fearing for the worst, let Herchenbach Mechanical Inc. ease your worries by providing you with professional service.

When you call and depend on us with your HVAC service needs, you’ll have a dedicated HVAC contractor assigned to you to answer any questions you might have and guide you through every step in the servicing process. That’s because 100% customer satisfaction is our goal and guarantee.

Why Choose Herchenbach Mechanical Inc.

Emergency Service 24/7/365

Certified Technicians

Groundbreaking Products

Satisfaction Guaranteed

Dealer and Factory Discounts

Locally Owned for 38 Years

Call to Schedule an Appointment Today!
100% Satisfaction Guaranteed

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