Testimonials – Maintenance Articles

Air Conditioner Maintenance in Oak Lawn, IL 60453

July 26, 2022

“We have been with Doornbos for at least 30yrs or more. We have had the best service! Today we had yearly maintence on our air conditioner. We had Juan Garcia do the service. He was very polite, and knew what he was doing! He did an excellent job! We always recommend Doornbos to neighbors and…

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Gas Furnace Maintenance in Oak Lawn, IL 60453

October 15, 2021

“I had my 6 month furnace maintenance checkup done by your excellent technician Mike. Mike impressed me by his knowledge, expertise and thoroughness. Due to his diligence I feel confident that our furnace will be ready and operate as expected this coming winter. Thank you Doornbos for having such outstanding technicians as Mike” – James…

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Gas Furnace Maintenance in Oak Lawn, IL 60453

October 14, 2021

“Mike has been taking care of our furnace and A/C for years. He is always friendly, professional and efficient. We have always been pleased with service from Doornbos, but Mike really stands out for quality of service.” – Carol V.

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Gas Furnace Maintenance in Other, IL 60561

October 13, 2021

“Doornbos is the best. I’ve used several HVAC companies to service my two homes before switching to Doornbos. I’ve been a customer for about 9 years. Unlike the others, Doornbos always arrives on time, delivers great workmanship, cleans up, provides thorough diagnosis and always with a great attitude. I’ve used them for new installation and…

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Gas Furnace Maintenance in Oak Lawn, IL 60453

October 13, 2021

“Excellent service provided by Mike who has been servicing this home for at least 10 years. He arrived at specified time and completed work in a timely manner. Provided me with a complete explanation of service provided. Making the appointment done with ease. Office staff always friendly and helpful.” – Debbie N.

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Gas Furnace Maintenance in Other, IL 60480

October 8, 2021

“Mike is very dependable and efficient. He is always friendly but professional. We appreciate how he takes the time to explain any questions we have.” – Regina M.

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Gas Furnace Maintenance in Oak Lawn, IL 60453

October 5, 2021

“Great job by Mike, as always.” – Dan R.

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Gas Furnace Maintenance in Palos Heights, IL 60418

October 4, 2021

“As ALWAYS my experience with your service team member Mike was EXCELLENT! His knowledge is superb. But most of all is courtesy,and politeness is greatly appreciated. He is truly a pleasure doing business with. We always request him and think of him as a friend. He has never steered us wrong, always truthful about our…

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Gas Furnace Maintenance in Other, IL 60525

October 1, 2021

“Mike is wonderful. Always on time. Very efficient and very neat. He is a great employee for Doornbos. They should be very proud of him. He is a great representative for their company. He explains everything he has done, and what should be done to keep our furnace/AC in top running order. Thanks so much…

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Gas Furnace Maintenance in Other, IL 60526

September 30, 2021

“Mike Donahoo was and has been our service technician for all semi-annual checks except one. In fact, he is the person that came by to show us the types of HVAC systems available when we bought ours from Doornbos. He is always very friendly, knowledgeable and efficient. This time, he checked our furnace, cleaned it…

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Gas Furnace Maintenance in Oak Lawn, IL 60453

September 28, 2021

“I have been using Doornbos for years to maintain and service my furnace to an air conditioning system. They always provided fast, friendly and reliable service. There service tech Mike has been to my house multiple times over the years he always provides great customer service.” – Steve G.

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Gas Furnace Maintenance in Other, IL 60418

September 26, 2021

“Mike is a very valuable asset to your company. He has wonderful personality and he does his job well. When I need service, I always ask for Mike. Nobody else can fill his shoes. He is fantastic and the pride he takes in his job is truly awesome…….. Rita” – Rita L.

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Air Conditioner Maintenance in Palo Park, IL 60464-1299

September 20, 2021

“I have been a contractual-customer of Doornbos for over 17 years. I request Mike for the annual air-conditioning and furnace annual check-ups. Mike is a friendly, knowledgeable, and very professional person. He is an important asset to the company's reputation and competence.” – Fr. Francis S. T.

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Air Conditioner Maintenance in Oak Lawn, IL 60453

September 13, 2021

“Your service technician Mike, has been servicing our HVAC system for years. He's very polite and professional. Does a great job. Five stars for Mike!!!” – Carol F.

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SpacePak Maintenance in Chicago, IL 60643

August 31, 2021

“Mike was very professional and thorough in taking care of my A/C problem. He took time to explain what he was doing and how he was going to fix the problem. I’ll be using Doornbos in the future based on my experience with Mike.” – Dave C.

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Air Conditioner Maintenance in Oak Lawn, IL 60453

August 23, 2021

“Mike has been our service specialist for almost 10 years. He is polite and knowledgeable. Always very professional and through. We feel confident when Mike has finished a service call. You are very fortunate to have Mike as an employee. Sincerely, Cyril and Denise Greenan” – Denise G.

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Air Conditioner Maintenance in Other, IL 60805-3527

August 23, 2021

“George was great. Friendly, efficient and informative.” – Donna Q.

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Air Conditioner Maintenance in Oak Lawn, IL 60453

August 18, 2021

“Mike is very professional and did a great job as always.” – William G.

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Air Conditioner Maintenance in Oak Lawn, IL 60453

August 16, 2021

“Mike has been servicing our HVAC equipment for about 5 years. He has always done an excellent job. I am always confident that he’s going to do it right. He’s a pleasure to deal with and represents your company well.” – Michael N.

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Air Conditioner Maintenance in Oak Lawn, IL 60453

August 16, 2021

“Mike has been servicing my heating and air conditioning for years. He has always been extremely professional. He is knowledgeable, efficient, polite, friendly, and an asset to your company.” – louise d.

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Air Conditioner Maintenance in Oak Lawn, IL 60453

August 6, 2021

“Mike is a great serviceman; he has been here many times and is always a wonderful representative for your company.” – John D.

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Air Conditioner Maintenance in Palos Heights, IL 60463

August 4, 2021

“Mike is always professional and personable. Always a good job.” – Nicholas J.

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Air Conditioner Maintenance in Oak Lawn, IL 60453

August 3, 2021

“Love working with Doornbos, I have had them out for maintenance today Auguest 3, 2021 Mike was very polite and informative. Very satisfied with his work.” – Patti G.

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Air Conditioner Maintenance in Oak Lawn, IL 60453

August 3, 2021

“I was pleased that Mike was able to service my air conditioning today…I always request him when it is time to service either my air conditioning or heating systems. I am always pleased with his work. He also services two other family members heating and air conditioning systems.” – Celia A.

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Air Conditioner Maintenance in Oak Lawn, IL 60453

August 2, 2021

“We recently had George the technician out to our house 2x for a little AC work. We always use Doornbos for our heating and cooling work, but were disappointed when our previous tech is no longer there. NO PROBLEM, George is on the case!!!!! George was extraordinarily knowledgeable, thorough with his work, and most importantly,…

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Air Conditioner Maintenance in Oak Lawn, IL 60453

August 1, 2021

“Mike was a very attentive and personable. He demonstrated his professionalism and knowledge of our unit. All questions asked were answered by Mike. He represented your company very well, felt like I was dealing with the owner of the company. It was our first time utilizing your service and it was an excellent experience due…

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Air Conditioner Maintenance in Other, IL 60459

July 31, 2021

“We have been using Doornbos to service our heating and air conditioning systems for over 20 years. Their service technicians are very thorough in their work. We have them inspect and service two furnaces and A/C units each year. Their prices are very reasonable and scheduling an appointment is easy. We have also used Doornbos…

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Gas Furnace Maintenance in Homer Glen, IL 60491

January 9, 2021

“I called after 5pm on a Friday for service on my gas furnace. The dispatcher on the phone was very helpful and seemed delighted to help me with getting someone out to take a look at my issue. I received a phone call from the Tech (George). He was very attentive to listening while I…

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I highly recommend Doornbos and Technician Dan Lavarda

August 3, 2020

“On 7-22-20, I had 2 AC units serviced by Mr. Dan Lavarda, Technician. He did a wonderful job and made the extra effort to clean both units inside and outside our home. It was a very hot day. However, Dan took his time and diligently took his time to make sure the outside units were…

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