Mark

Service Technician

Certifications: EPA certified universal, 597 apprenticeship, COD certified for HVAC, ETI certified #1 in class, national honor society from ETI.

Work history: Started my HVAC career in 2005 and have been with Tempco since 2016. I am a local 73 commercial service specialist.

I like the personal interactions with my customers and being able to fix issues that will help make their home more comfortable. It is also very satisfying being with Tempco because they support my growth in the HVAC field and provide a working environment that allows me to achieve my goals.


Recent Jobs and Reviews

Rated 5.0 out of 5 stars based on 488 customer reviews

Customers say: The overall sentiment across these reviews is overwhelmingly positive, reflecting high levels of customer satisfaction and trust. Customers consistently express appreciation for the professionalism, reliability, and expertise demonstrated by the service technicians. Recurring themes include punctuality, with technicians regularly arriving on time or within scheduled windows, and exceptional customer service characterized by friendliness and courtesy. Many reviewers highlight the value of having knowledgeable technicians who take time to explain procedures, answer questions thoroughly, and provide helpful advice about HVAC systems. The educational approach taken by service providers is particularly appreciated, with customers feeling informed and empowered about their equipment. Long-term loyalty emerges as a significant trend, with several customers noting years of continued service, indicating sustained satisfaction and trust in the company. The consistency of service quality is emphasized, with customers expressing gratitude for seeing familiar technicians year after year, which fosters a sense of reliability and personal connection. Overall, the tone is enthusiastic and grateful, with customers viewing the service as dependable, honest, and representing good value for the cost. The sentiment reflects a strong recommendation for the company's professionalism, efficiency, and customer-focused approach.

Reviews

Awesome Service
If you are looking for a dependable reliable heating and air-conditioning company...Look no further....Tempco installed my furnace and air-conditioner when I had my house built 4 years ago...I have been using them every since to do preventive maintenance..they are pleasant, friendly, efficient, and reliable, you can't go wrong using them.
Todd - Aurora, IL 60506
Annual furnace check
Great service technician, Mark J. Mark takes his time and explains things very well and is always willing and helpful in answering questions. We are quite pleased with the company and would highly recommend.
Robert - Warrenville, IL 60555
Same great service from Mark
Tim - Western Springs, IL 60558
Great Service
Toula - Western Springs, IL 60558
Really great service!
Prompt, personable and knowledgeable service! Highly recommend!
Doris - Western Springs, IL 60558
Good service-looking out for me
Tell your friends
Arthur - Joliet, IL 60431
Excellent as usual
Mark is great
Marcella - Aurora, IL 60502
Great
Professional
Carlos - Lemont, IL 60439
Great service
Excellent service , reliable , honest
Barbra - Aurora, IL 60502
satisfied customer
Great service. This is second time I use Tempco for our heating / cooling needs. Our technician, Mark, was right on time, very professional and quick in installing our humidifier. Took time to answer all questions I had. Will plan on using their services again in the future
Nick - Naperville, IL 60540
Always on time and friendly
Always on time and willing to explain things to you. Will always use them for our HVAC needs. Thanks Tempco!
Chad - Montgomery, IL 60538
Awesome
I sure do have peace of mind knowing that every six months my furnace and air conditioner are checked by the people who installed the equipment. I especially like being able to pay ahead of time for two years and not having to worry about having the money when he comes. Great idea! He came early today - nice surprise as I'm home alone with the dog and cat. Gladly recommend this service for all.
Heather - Naperville, IL 60540
Great guy! Great service!
Mark is a great service tech. Knowledgable, friendly and thorough. Highly recommend Mark and Tempco.
Tom - Bolingbrook, IL 60490
Great Service
Mark was on time, pleasant and efficient.
Kelli - Naperville, IL 60564
Highly Recommend
Appointments are always on time, Mark is very knowledgeable and does a great job explaining all things related to the furnace. He’s great to work with and always is happy to answer any questions.
Regina - Winfield, IL 60190
Great service
Alice - Westmont, IL 60559
Great Service!
Mark J is terrific. He has been to our home several times and has always done a great job.
MK - Naperville, IL 60540
Great Service by Mark J as always
We always appreciated Mark J's great customer service, Tempco is fortunate to have him.
Howard T. - Plainfield, IL 60585
Superb service
Always punctual, polite, efficient and very knowledgeable!
Tina - Naperville, IL 60564
Honest service company
Have used Tempco for service and maintenance since 2002. Found them to be honest and efficient. I have recommended them to neighbors.
Bob - Aurora, IL 60502
Great Service and people
First cold day and my heat is not working correctly. I call at 6:15 get the answering service a then call 7:05 and restate story.Service person is at my home by 8:45 am. Thank you....Great serve and people
Merrie - Geneva, IL 60134
Good service
Sammandan - Naperville, IL 60563
Great Service
Coleen - Orland Park, IL 60462
Professional !! Knowledgable !! Reliable !!---the Best !
Bev - Aurora, IL 60502
Timely, efficient and pleasant!
Norbert - Hoffman Estates, IL 60192
Great Service
Small hiccup in initial scheduling of service. Called back and explain issue with HVAC system. Appointment was schedule. Technician called back two days earlier than time scheduled and was in area. Service completed!! Mark arrived and was wonderful as usual.
James - Lockport, IL 60441
Great Installation
Mark was great with his explanation of the new humidifier and how we could keep our house working efficiently with the heating and air conditioning. I appreciate the support and willingness to explain the system.
Brian - Plainfield, IL 60585
Excellent Services
Mark is always polite and professional. He did a thorough job, and cleaned up afterward.
Dennis - Aurora, IL 60502
Awesome service
Mark was great. Timely and very knowledgeable. Polite and professional. Fixed anderson explained my issue.
Mike - Lemont, IL 60439
Great Service as Always!
Doug - Lockport, IL 60441
Best service tech ever!
He made us feel confident in what he shared with us. Very pleasant experience.
Michael - Woodridge, IL 60517
Great Service
Mark Johnson, the tech was considerate, timely and informative!!
Tim - Bolingbrook, IL 60490
Knowledgeable and Nice Technician
The technician was explanatory as to what he would check to identify the problem. He did so, identified the problem and fixed it in a short amount of time.
Paul - Winfield, IL 60190
Great service
Friendly professional, quick work!
Theresa - Orland Park, IL 60462
Excellent Service!
Another great service experience! I truly appreciate the reminders and packages as well. Professional, friendly and reliable always!
Samantha - Aurora, IL 60502
Amazing Service! Mark was the Best!
Best Ever
Michael - Aurora, IL 60502
AC service visit
On time and fixed my hvac quickly and in 1 visit.
Matt - Downers Grove, IL 60515
Great Service - as always!
Mark was early, courteous, quick, and friendly. So easy to work with.
Matthew - Lemont, IL 60439
Great service
James - Lemont, IL 60439
Mark is great!
Always get wonderful service. He is very highly qualified as a technician and a pleasure to have in my home. Thanks, Mark.
Linda - Aurora, IL 60502
Terrific service!
Nice to work with a company that delivers on communication and service!
Doris - La Grange, IL 60525
Great Technician, Mark
We have dealt with Tempco for three seasons now and quite pleased with them. We especially like the technician, Mark. He is always cordial, thorough in his work, and always answers all our questions and provides us with helpful suggestions on heating and cooling. We are very pleased with company and cost are competitive.
Robert - Warrenville, IL 60555
Great Service
Tim - Western Springs, IL 60558
Great service
Oscar - Western Springs, IL 60558
Mark was great
Mark was great to take the time and walk through my system as well as the go forward maintenance plan
Ryan - Downers Grove, IL 60515
Great service with a great tech
Mark J. was our service tech. He is knowledgeable, polite and knows exactly what he's doing to get the job done. Thank you for Mark!!!
Donna - Aurora, IL 60502
furnace spring check up
All went well--Mark is very friendly and professional !!
Beverly - Aurora, IL 60502
todays visit
Unit is functioning the way it should.
Francis - Western Springs, IL 60558
Timely, Professional and Exceptional service
Mark is a pleasure to work with, very professional, on time always, great customer service and very knowledgeable- I highly recommend Mark and always ask for him to be our technician.
Regina - West Chicago, IL 60185
Great Service
Mark is awesome. He is very professional. Completes maintenance efficiently and quickly. He asks if we have any questions and takes time to answer throughly. Responsive to addressing concerns as well. I like that Tempco sends the same technician for service each time. He knows our home and history of service and we get to know him as well. In today’s world this is unusual. Thank you Tempco.
Patricia - Naperville, IL 60563

Job Locations

Mark J.
Mark J.
Carrier furnace maintenance
Shorewood, IL 60404
Mark J.
Mark J.
Carrier furnace maintenance
Lemont, IL 60439
Mark J.
Mark J.
installed aprilaire 500m
North Aurora, IL 60542
Mark J.
Mark J.
Installed aprilaire 600m
Plainfield, IL 60585
Mark J.
Mark J.
Furnace maintenace
Lisle, IL 60532
Mark J.
Mark J.
Furnace maintenance
Aurora, IL 60504
Mark J.
Mark J.
Carrier furnace maintenance -Cleaned and checked operation of furnace everything checks ok
Warrenville, IL 60555
Mark J.
Mark J.
Carrier furnace maintenance -Cleaned and checked operation of furnace and humidifier everything checks ok
Downers Grove, IL 60515
Mark J.
Mark J.
Carrier furnace maintenance
Winfield, IL 60190
Mark J.
Mark J.
Carrier furnace maintenance
Winfield, IL 60190
Mark J.
Mark J.
Carrier Furnace maintenance
Winfield, IL 60190
Mark J.
Mark J.
Carrier furnace maintenance -Cleaned and checked operation of furnace everything checks ok
Wheaton, IL 60187
Mark J.
Mark J.
Furnace maintenance
Paw Paw, IL 61353
Mark J.
Mark J.
Carrier furnace maintenance
Western Springs, IL 60558
Mark J.
Mark J.
Carrier furnace maintenance -Cleaned and checked operation of furnace and humidifier found humidifier hose plugged cleaned everything checks ok
Elmhurst, IL 60126
Mark J.
Mark J.
Carrier furnace maintenance
Warrenville, IL 60555
Mark J.
Mark J.
Carrier furnace maintenance -Found bad inducer motor replaced cleaned and checked operation of furnace and humidifier everything checks ok
Winfield, IL 60190
Mark J.
Mark J.
Carrier Furnace maintenance
Plainfield, IL 60544
Mark J.
Mark J.
Lennox furnace maintenance
Aurora, IL 60506
Mark J.
Mark J.
Furnace maintenance
Shorewood, IL 60404
Mark J.
Mark J.
Carrier furnace maintenance -Cleaned and checked operation of furnace
Romeoville, IL 60446
Mark J.
Mark J.
Carrie Furnace maintenance
Naperville, IL 60564
Mark J.
Mark J.
Furnace maintenance
North Aurora, IL 60542
Mark J.
Mark J.
Furnace maintenance
Downers Grove, IL 60515
Mark J.
Mark J.
Furnace maintenance
Warrenville, IL 60555