We are proud to include the following testimonials of our Commitment to Service:

I switched to One Hour a couple years ago per recommendation of a friend. I have been completely satisfied. The work is excellent, the servicemen are knowledgeable and super honest and polite. They never push me to upgrade or purchase anything. Just honest recommendations. You are also quick to come when a problem arises. I also like the yearly contracts.
Bonnie W.

Service man Brian couldn’t have been more knowledgeable and performed the service with efficiency. He also complimented the way our builder installed the air conditioner. We agreed to replace the contacts as he suggested.
Marilyn E.

Always on time, always respectful of your home.
Sharon T.

Staff is always prompt, professional, and pleasant! And the Comfort Club is a great option to offer to customers – saves the customers some money, while also giving them top priority ~ what could be better?! Keep up the good work!
Brian and Diane S.

One Hour has also been on-time if not early to the service appointments. The Tech has always gone the extra mile in keeping us advised about the A/C and furnace in our rental unit.
Debbie C.

Always Number 1 Service! Thank You!
Mrs. Mary M.

They were great! They came out quickly and were very thorough with my repair.
Nichole N.

Kindness of staff, Professional quality of work and clean up!
Silvia H.

Very good service program. Prompt arrival time.
Rhonda Y.

Competent and Friendly Service, Always!
George & Mary Jane S.

Mike was helpful and friendly – all of your workers are always professional. I feel confident with your company. Thanks!
Bill J.

The excellent servicing of our equipment. The professionalism of the technicians. The on time arrival. The knowledge that when we need servicing, they are there for us!
Marc Z.

Technician very competent, friendly, and on time. What more could I ask for?
Merry H.

Mike is great!
Carl and Karen H.

One Hour had been here twice to do emergency furnace repairs on my old furnace. They were prompt, professional. When Chris came out for new furnace and central air, he was very professional, called when running a little late. Everyone was courteous and I have heat and cool air and I’ve already referred you to a couple neighbors.
Kathy O.

Chris Carpenter and his staff are top notch. They were helpful explaining my situation and options. I would highly recommend them to all who need the service. Thanks!!!
Mark S.

Everyone involved from initial sale through installation was extremely knowledgable, courteous and professional. We’d be happy to endorse as needed.
Wayne S.

The service men were prompt, friendly, did a great job! Chris did a great job in explaining, describing what my new furnace could do for me.
Joan P.

The people are very professional and helpful. They provide great service and follow up.
Bob C.

Punctual, knowledgeable, courteous.
Norma M.

Because service for our family has always been excellent.
Ron & Mary H.

The gentleman was polite, clean and courteous.
Brittany S.

Chris was concerned about my situation and followed through, thoroughly all the way to installation and after. Your technicians were clear headed, productive and clean. Thanks for the great work.
William K.

David and Zac were great. Very polite and personable. Worked hard to get the job done!
Cecilia V

One Hour Heating and Air provide friendly, fast service. The club program has been awesome. As the director of a non-profit child care center, I have a lot on my plate. Last thing I worry about is my heating and cooling systems, until they go out. One Hour Heating and Air club, calls me to remind me it is time for a check up, come out, tune up my system and make cost effective recommendatins based on their findings. I really appreciate it.
Katie W. – Sycamore Child Care

Chris and his team did an outstanding job with an urgent situation and I was extremely grateful.
Hugh S.

Got the job done as scheduled with professional technicians at a comptetive price. Great company to work with!
Liz K.

Thorough, trustworthy and cannot do enough for you. The tech was very knowledgeable and courteous.
Bernie P.

Installers were careful courteous and seemed to be knowledgeable in order to accomplish the task of installing my new furnaces.
Marilyn S.

Efficient, friendly, and knowledgeable staff.
Lyle E.

Prompt, thorough, friendly and fair priced.
Mark V

Very friendly and courteous installers. Very informative sales staff.
Jennifer L

Mike did a great job when he serviced our furnace and was very informative. He explained everything he did and why he did it. Mike informed us about the Comfort Club which we joined the next day! I aasked him about the water heater and he suggested I call Ben Franklin to inquire about a water heater. I plan to be using their service in the future.
Mike R.

It was a pleasure meeting Todd; he was very pleasant, professional, and efficient– another great member of the One Hour team! We are always very satisfied with the service that we receive from your staff– from phone to service! Thanks!
Brian & Diane S.

I have great luck with One Hour Heating. Always on time and very professional. I am on a schedule for ayearly tune up, so that helps to keep they furnace and air conditioner in good working order.
Pat D.

Friendly, professional, protective of our floors (put on plastic slippers so not to track in on floors). Recommendations along with explaination after service.
Jerrold & Patricia V.

Prompt, courteous service. Helpful service people.
Don F.

I actually talked to a human being, not a recording, and the technician called me within 10 min. to arrange the repair. I called Dalquist first, left a message, and they never called me back.
Marilyn E.

Your response was excellent. However, you guys went above and beyond to let me know the real scoop on the status of my furnace and what my options were. Brian then spent his own time trying to find the part we needed.
Louis V.

Your service is great, I have and will continue to recommend your company to everyone that is in need. Thank you again for your services.
Vern H.

Todd did an excellent job.. thank you!
Nate M.

Service techs courteous and on time.
Karna N.

Technician on time. Technician friendly with a smile. Technician competent and completed work in good time. Technician suggested possible future issues, but didn’t try to sell anything. Good guy! You should keep him.
Merry H.

Very professional and courteous. On time.
Jeff & Julie W.

Your company may not be the most inexpensive but you have the best customer service of any company I have ever dealt with. Your sales people, dispatcher and technicians go out of their way to help, often in situations that are costly and unpleasant. I have recommended you to several friends already.
Brian Y.

Always Great
Mrs. Mary M.

1- Our call was returned when we asked for someone to see if it would be possible to have a furnace installed for our porch. 2- Chris called us back and set a time to come to our house.. He did, and gaveus an estimate that day. 3- It was installed the day that was set up and finished the same day. 4- In a few days we had to have the furnace looked at for some switch.. came same day… Problem Solved. 5- Gentlemen were very polite and left no mess.
Larry L.

Friendly and professional staff that know their craft.
Stuart P.

They promptly responded to my call on a Sunday morening and got my furnace repaired quickly. There was no charge for the service.
Rita H.

Mike is very friendly and knowledgeable. Highly recommend this service.
Nancy H.

Great Service! Quick response when you need them!! Excellent work on whatever they do! Reasonable prices!
Dan B.

Techs are friendly and knowledgeable. One Hour does what they say they will do when they say they will do it.
Paul & Michelle Z.

Always quick to answer when calling for service. Technicians are very good, strategic thinkers who have always resolved my issues fast and for the right price!
Grant B.

I deeply appreciated that time and care taken to inspect my furnace. It was not just ‘a slap and a kiss’ and then rush out the door to the next paying customer, which has been my experience much too often. Then the followup personal communication with me on the state of my furnaces was deeply appreciated and helpful. I have a better grasp of the remiaing life of my furnaces.
Clifford H.

Always top service. The Best. Thank you.
Mrs. Mary M.

Always prompts and pleasant.
David & Kendra B.

Great Customer Service
John S.

Didn’t give us a high sales pitch. Financing is awesome. Answered all our questions. Very polite.
Richard P.

Great Product / Great Price
Kevin D.

Joe was outstanding.
Jason N.

Entire staff is friendly yet professional from start to finish. The whole experience was great! I would highl recommend anyone looking to upgrade their HVAC system to look at One Hour Heating & Air Conditioning. I even received a follow-up call within 24 hours and it was a weekend. Thank you Chris and team!
John G.

Your people are always pleasant and do good work. I recommend One Hour to everyone I know. Thank you.
Lynette A.

Top Service AppreciateYou.
Mrs. Mary M.

Was pleased with each worker and the fellow who came out the first time.
Don B.

Brian was excellent. Informative, friendly, and trust he did a good job.
Carol W.

All work great.
John D.

Knowledgable, courteous and personable personnel.
Paul Z.

GOOD SERVICE. I liked the service man.
Don B.

The Team came in, did the job and left in a decent amount of time. Didn’t really know they were here since they didn’t leave a mess at all.
Julie & Bryan K.

Did a nice job installing new furnace. Cleaned up job area well.
Chris B.

I never give a perfect score, but your service was very good. We are awaiting your call back regarding a couple of additional service items.
Gail F.

The service man, Mike, was on time, polite, informative and professional. Did a good job!
Richard E.

Very kind and helped is a lot with explaining what we needed. Chris was very patient and helpful in making decisions for our home. showed us what we needed not what would make them the most money.
Cassandra P.

Mike and his helper did a good job in fitting everything back together and in reheating the humidifier.
Harry R.

I was called to remind me annual service was needed. Tech showed up on time and very attentive to detail and proactive on service.
Joel P.

Quick service, friendly tech, polite, clean.
Judy H.

Great job, worked hard, nice guys, polite and worked in the coldest weather.
Betty H.

Through many years of service, I have been treated with respect, quick as possible service, in emergencies and with ordinary annual checkups. Now over 13 years. Thank You!
Ron and Mary H.

Prompt, courteous, professional.
Don F.

Service, promptness and friendly employees make such a difference. One Hour (Cortland, IL) has all 3!!
Terry C.

They were prepared to come fix my heater right away but were also more than willing to push back my appointment when I as them to. The tech was very nice and took the time to explain the problem in a way I could understand. I’m very happy with my experience.
Nichole N.

Friendly, on time and good work.
Terry C.

Service was swift, prompt and they were able tofix the problem with my furnace. I would also recommend joining their club service, because THERE you will find big savings.
Virgina and Lawrence N.

We bought a new furnace and A/C (High Efficiency Furnace – 96% and 16 SEER A/C). Explained they choices we had that was easy to understand. Had both the furnace and A/C unit put in one day. Mike did an excellent job.
Tiffany K.

Always thorough and professional.
Todd P.

This is our second new system installation (big old farmhouse with addition, needs 2 units) and we wouldn’t go anywhere else. We appreciate the explanations, we got an excellent, efficient system and as usual installation was fast and Mike cleaned up everything.
Bob and Molly S.

Service is always top notch.
George S.

Courteous, efficient and thorough. Nice survey – only one important question.
Tom Z.

Joe is always very friendly and on time and answers my questions very thoroughly. The reminder calls ahead of time are great also – I don’t always remember to write down appointments.
Peter F.

He was on time, professional, answered my concerns and shared options for what I should be budgeting for in replacement appliances. He was not high pressure sales, and allowed me time to think about what we can plan on the next faze on being a homeowner. I can sleep comfortable knowing furnace and water heater are clean and running well. Thank You.
Judy W.

Your technician was pleasant and polite. He performed his inspection in a professional manner. He was careful when he walked in and put booties on so as not to track anything in. You have a very good employee. Thanks.
Bob H.

I loved your services. The man was so very nice and he answered all of our questions very plain. He was very clean cleaning up after he was through. I hae already told friends about you. Thanks for being so quick to come and put the business in. Thanks again.
Maxine H.

Tech arrived on time and completely explained what service he was performing on our furnace.
Stuart P.

Was very pleased with the promptness of response to my call and I felt the price charged was reasonable.
Ronnie – Kanosek Canine Training Center

The two men that installed the furnaces did a very professional job and the units both work very good. Thank you.
Wes R.

Joe! Joe is a kind man and a hard worker. He is not pushy and I’d tell f&f to ask for Joe 🙂  He explains everything and works hard. I’m sorry he got soooo dirty cleaning our ducts. The air cools the house so much faster. I hadn’t considered that bonus. Thanks for asking. Definitely keep Joe.
Teri & Donald W.

Service techs, are always prompt and professional, and all employees are pleasant and friendly – both on the phone and in-person. It is also a nice benefit that One Hour offers club membership.
Brian and Diane S.

Your staff is very knowledgeable and is on time for appointments.
Ron and Cathy G.

You don’t pressure us into buying or doing anything unnecessary.
Patricia C.

Mike did a good job checking my air conditioner and furnace and telling me what needed to be done. I chose to wait til next year after the new checkup.
Sandy Y.

Prompt and repair done quickly.
Michael M. – Kishwaukee Country Club

Very professional. Fair price.
Josh L.

Fast Installation. Quality Product. Helpful crew installers.
Bob M.

On time and great work.
Kishwaukee Country Club

One Hour was prompt, informative and helpful. I plan to sell my home and will recommend new owners to use One Hour. I was also guaranteed the warranty is transferable to new owners.
Jill M.

They did a good job!!
David L.

Mary is great, Mike Scott is excellent and you meet and surpass any expectations every time you come out.
Charles D.

Excellent Service.
Mike C.

Service Tech was very pleasant and knowledgeable.
Paul A.

Super Service!
Maryann M.

Very accommodating, polite and punctual. Answered all our questions and very informative. Would highly recommend!
Liz Lucas

Our service provided were prompt, courteous and very knowledgeable – An excellent combination. They were also pleasant, friendly and hard working – an even better combinations skill!
Marie H.

On-time, thorough and didn’t leave a mess.
Dawn E.

I was able to get service at 1:00am when it was below zero. Thanks again.
Carol S.

I give One Hour Heating & Air of Northern Illinois a rating of 10 because they are prompt and considerate of my home. Also if I am not satisfied with something they respond immediately.
Gerald P.

Always prompt, professional, pleasant, and informative! Club membership perks/benefits are great, too!
Brian and Diane S.

I was treated honestly and fairly in dealing with my furnace problem and obtaining a new furnace.
Pat G.

I just want so say that ‘ One Hour Heating & Air – Northern Illinois is awesome!!!
After many phone calls that went unanswered or to voicemail, I finally got a real person when I called them. I have never used them before and they came out last night in the negative double digit wind chills when no one else I called would answer their phones!!
Voice mail does NO good in the wee hours of the morning when you have no heat.
Thank you for you prompt service! I will be saving your number! 🙂
Lisa J.

Your employees went out of their way to make sure I got my furnace fixed. Very much appreciated since it was way too cold to be without heat.
Dorothy G.

I am pleased with the job that was done. Your employees were very informative letting me know what was going on.
Eddie S.

You always come quickly and do a very through job checking out the problem. Great customer service!
Paul K.

Love my new furnace and everyone was a pleasure to work with. I’m very happy!
Kurt G.

The technician was on time, professional and clearly outlined the services that he was providing during the visit. I also had a gas chimney insert that was not working and he spent a few minutes looking over the system and provided me with a few suggestions, which he did not have to do. I have always had good service from your location and would highly recommend One Hour Heating and Air Conditioning to anyone including the annual maintenance with the Comfort Club package. Not only do they do preventive maintenance, they also keep you in compliance with your warranty agreement requiremements. Carol is also great to work with on setting up the appointments and rescheduling service if needed.
Charles F.

We are very pleased with our units. They were very carefully installed – no damage. Hope we can enjoy it forever. Thank you, God Bless.
Bill P.

Very efficient, explained everything about furnace and air conditioner. They were on-time to install and were only here a few hours. Everyone was friendly and considerate.
Linda H.

The salesman was very knowledgeable (he knew his stuff) and he andswered all of my questions to my satisfaction. Then they installed my new furnace the next day. They were very professional, courteous and cleaned up after themselves. I was very satisfied.
Brad L.

Mike came in located my gas leak in a section of the line above where he installed the furnace, which he had not touched. He then fixed it right away. He is very knowledgeable and very kind and courteous.
Patrick G.

All of the technicians that came to our house were knowledgeable, patient and wanted to fix our problem without excessive cost to us. I have recommended your company to our neighbors. Thanks to Mike, Joe and Dennis for their help!
Jamie F.

Always great prompt service with knowledgeable staff.
Tim K.

From the time I met Chris, the One Hour organization has always been so respectful and helpful. We will recommend you often to whomever we learn are in need of  HVAC work.
Tom & Ruthie S.

Good job, no complaints serviceman was friendly and nice. Thanks.
Judith and Robert G.

Mike was our most recent service person and he could not have done any better. Thank you. We are a steady customer and are always very pleased with everyone.
Joe F.

Very professional service.
Clark A.

On time thorough service and performance.
Joel P.

Tech was very informative and answered any questions I had and also offered me other services that could help with my heating and air systems. He advised that duct cleaning should be done in order to not only porlong my filter life but to also make the air quality better in my home. He did an A++++ job.
Peter F.

February 29, 2013

Just a note to recognize a job well done.

We were having problems controlling the temperature in our home so I bought a new thermostat and that didn’t make any difference. We then had our furnace Serviced and Cleaned and that didn’t make any difference. We called once more and young and handsome and happy Joe WyruckowskĂ® came to our door and said, ‘Show me to your furnace sir, your troubles are over.’

Seriously, Joe found an area that was clogged and needed cleaning. He said it was preventing the thermostat from “communicating” with the furnace. Now we can control the heat within a degree or two. So we were very grateful for his expertise.

Sec0ndly, our sump pump somehow got unplugged, probably when I was doing some work around the fuse box, and I called that water was coming out of the furnace. As soon as I realized that the rain was causing my floor drain to back up I called and cancelled the call. A few minutes later a young lady (Cathy) called and wondered if I would like a plumber to come out which was very kind of her to be çoncerned. To make a long story short, he was a fantastic help at a time when he should have been at home having dinner. His name was Dennis.  This kind of help is the way life used to be years ago when I was younger and I certainly appreciate craftsmanship.

So then, I will be a life-long cusçbmer of ONE-HOUR and will refer you whenever I can.

Thank you all,
Joe and Kathleen F.

Your company has always been very professional and when I had not scheduled an appointment for my annual Furnace cleaning, you took the initiative to contact me.
Charles F.

I’ve recommended 2 family members because your service number one works and the service is excellent. The people that come to my home are helpful and well educated in their jobs. Thanks.
Rick and Debbie W.

I feel comfortable with the workers in my house, alone in the basement. Their work is well done and I trust them.
Benjamin G.

Technician was friendly and thorough. He was on time and did not rush or waste time. He did not leave a mess afterwards.

Had no problem with appt. time or date. The young man was very professional. Answered allmy questions. He was very courteous. PS: the girls at the office are also very very sweet. Thank you much,
John and Dorothy M.

Good, thorough job. Thoughtful recommendations / no pressure. Mark, Joe, Dennis – Nice job! Thanks,
James J.

Technician completed job to our satisfaction. He answered all of our questions and demonstrated complete knowledge of our furnace. Made several recommendations for improveents. Should carry a business card, they are cheap. Forgot his name and his signature is lousy. He is a credit to your fine company.  Your furnace and air conditioner systems are excellent!
Ann and Alfred M.

Was very clean, professional and prompt. Check all parts of the furnace.
Howard L.

Technician was very thorough and explained his findings. Teh was very concerned on safety issue and went the extra mile to check on a potential hazard. Thanks again,
Joe C.

Knowledgeable, Professional & Convenient.
Norman B

Was very thorough worker!
Obe and Sandy J.

One Hour services my furnace and AC without my reminding them. I know my equipment will be ready for the season.
Pete P.

The technician seemed knowledgeable and courteous and had necessary parts and tools in the truck to do the job in one trip.
Ken E.

Everyone has been very nice and always helpful, including the technicians and the office staff.
Andrea and Trey C.

Pleasant, Competent Service Man. Like the lady on the phone who makes the appointments, (Mary Lynn?). Just a good experience. Have used for several years – Service continues to be excellent.
Merry H.

Nice work. Nice, knowledgeable tech.
Kyle H.

Service man was courteous, knowledgeable and prompt.
Clark & Anita A.

Everyone that was involved in this service appointment was extremely polite. The serviceman and Mary Helen who makes the appointment represent your company well.
George & Mary Jane S.

Consistently there when you need them. They are polite, do work cleanly and are great to have as service professionals.
Benjamin G.

Chris, Bill and Mark are the best guys I’ve ever done business with.
Fred P.

Your guys at One Hour Heating and Cooling did a wonderful job at my home today. It seems the fan motor on my new air conditioner and the capacitor went out and the fan stopped working.

The gentleman you sent out to my home not only troubleshot the problem in a professional manner, but got the air conditioner up and running again in no time. I truly must say when you guys say One Hour, you mean it, heck I would call you guys Half Hour Heating and Cooling.

You guys so far have not only met but exceeded my expectations as you truly know what it means to keep a customer happy. I will be more than happy to taut your name everywhere I go, as the best heating and air people in the area.

A very happy customer,
Mark K.

PS: I have already scheduled a duct cleaning next week 🙂
Keep up the good work guys, you are doing your company proud!

Dear Chris,

I wanted to thank you again for taking the time to put together repair estimates on a property I am looking to place an offer on. I feel very confident knowing I have the support of your company and look forward to working together more in the future.

Pleas pass on my gratitude to your wonderful staff.

Patty L.

Dear Chris and One Hour Heating & Air,

Thanks so much for allowing me to purchase a furnace from you. My furnace decided to take it’s last breath when I didn’t have an available dime. I could never have survived last winter without you.

Regina P

To the Employees of One Hour Heating and Air,

Purchasing a furnace was a new experience for me. I know nothing about furnaces or air conditioners and was wishing there was some way this task could be made less challenging. However, it is because of your customer service that I am delighted to write this letter. What to purchase was left up to my son. He informed me of his decision and all I had to do was call and set up a time to get the job done.

Dennis and his helper arrived promptly on the assigned date ready to go to work. They were very careful about covering their shoes, cleaning up the working area and worked until the job was completed. I had heat. There were several questions that had to be answered before the assignment was finished. Dennis spent a day or so researching. Yesterday he and another gentleman came and spent 2 hours of their dinner time doing whatever was necessary as they said, “to make me happy.” (my concern was sound and air flow) Never once did I note anxiousness to leave but their desire was to leave me “a satisfied customer.” Very often “customer service” is an advertising tool, never to be used. These gentlemen are perfect examples of providing individual service for their customers as everyone is different when it comes to temperature choice. They are knowledgeable, courteous and answer all questions clearly and understandably.

Many plaudits are due both of these two men. Dennis fulfills his responsibilities to everyone who entrusts their heating and cooling installations to him. I will happily tell my neighbors and friends who are in need of your kind of services, of my becoming one of your “Satisfied Customers.”

Best Regards,
Kathryn K

Hi Everyone,

Just wanted to thank you again for everything you have done for us. My wife and I are happy with our new heating and cooling system. You all really got us out of a tight spot. As you all know winter is coming again soon and we needed a new furnace. You all came out, gave us a good price, even helped us to get financed, and got us all set up. I wanted to thank Chris and his crew for all the time and work. I will make it a point to recommend YOU TO EVERYONE! ! !


Ladies and Gentlemen,

About a year ago we purchased a brand new Amana furnace from your company to replace the old furnace that kept breaking down. Unfortunately, the new Amana furnace that was installed also kept giving us problems.

Last month, your Company in good faith replaced the one-year old Amana furnace with a brand new furnace and we have thus far had no problems with the new unit. Thank You.

Dane S.



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