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

Fall Furnace Check-Up
Mark is great! Always on time, pleasant and helpful. Our furnace works great.
Marlene - Naperville, IL 60540
Good service.
Susan - Winfield, IL 60190
Satisfied Customer
Mark is an excellent technician. He is always prompt and courteous. I like that we have the same service tech for each visit. Mark’s my guy!
Karen - Winfield, IL 60190
Great technician
Robert - Aurora, IL 60502
Helpful
Joe - Downers Grove, IL 60515
Very informative and courteous employee
Excellent
Jeff - Naperville, IL 60564
Very Professional
Mark J is always friendly, on time, professional and answers any questions posed to him regarding the furnace, AC, Nest or humidifier. Very respectful of property and does a great job!
RMN - Winfield, IL 60190
Furnace maintenance
Great service. Mark does a great job.
Patricia - Warrenville, IL 60555
Great service
Mark is great!
Alice - Joliet, IL 60431
Greatest Technician Ever
Great job Mark and Tempco.
Lloyd - Aurora, IL 60506
Excellent!!!
My service tech, Mark, was very professional, neat, and fast. Great service and highly recommend!
Mary - Woodridge, IL 60517
Great Service
Coleen - Orland Park, IL 60462
Great service
Dennis - Aurora, IL 60502
Great service
Kalpesh - Downers Grove, IL 60515
Great service
Alice - Westmont, IL 60559
Mark J is always great!
Marlene - Naperville, IL 60540
Great service
Mark does a great job. Timely and professional.
Brian - Naperville, IL 60540
Great service!
This team is fantastic! Nothing but professionals!
Scott - Lombard, IL 60148
Great Service
Mark was great at providing details needed to ensure our system runs smoothly.
Sparkle - Yorkville, IL 60560
On-time, friendly service
Annual inspection of our AC unit. Everything is in good shape and ready for the summer months. Technician was on-time and explained the work to be completed.
Thomas - Carol Stream, IL 60188
Great service
Always friendly and on time! Love them!
Laurie - Yorkville, IL 60560
Excellent service!
Karen - Winfield, IL 60190
Awesome Service
If you are looking for a great company to get your Airconditioner or Furnace serviced look no further, this is a great company that I have use over the last 5 years. Great service, prompt, courteous, efficient, what more could you ask for.
Todd - Aurora, IL 60506
Awesome as always!
Thanks for another great visit - professional, friendly, clear, quick and thorough!
Samantha - Aurora, IL 60502
Great service. Great personable guy. Mark is a true asset to your organization.
Awesome!!!
Dan - Naperville, IL 60540
Great service
Showed up on time. Polite. Clean. Quick.
Paul - Winfield, IL 60190
Great Service!
Great service and Mark always does a great job!
Gina - Downers Grove, IL 60515
Good Service
I have been very happy with the spring/fall maintenance plan with Tempco.
Patrick - Warrenville, IL 60555
Very pleased with the service from Tempco and Mark.
Julie - Winfield, IL 60190
Amazing service
Mark has always been prompt and efficient with his time at our home. He’s honest and always willing to give sound advice when needed. I always appreciate having the same tech at our home because he knows where everything is and our homes history.
Charles - Wheaton, IL 60187
Excellent service
Excellent timely service with a smile
Dori - Western Springs, IL 60558
Very accommodating and professional!
Tom - Orland Park, IL 60462
Reliable and great service
Easy to schedule appointment on line, reliable, on time and respectful of property and taking Covid19 precautions such as wearing of mask if service requires being in the home.
RMN - Winfield, IL 60190
Professional and prompt
Donielle - Lemont, IL 60439
Mark is great, but we did not have auttumn furnace maintenance on 2019, please schedue missed furnace maintenance with us
Jenny - Warrenville, IL 60555
Great Service, professional and knowledgeable technician
Very much enjoyed having Mark as the service technician. He was friendly, professional, knowledgeable and quick in the performance of his work. I felt very comfortable having him in my home, particularly since social distancing necessitated allowing him to free access to move about my home unescorted to perform his work.
Joanna - Bolingbrook, IL 60490
Smooth and timely service!
Mark was the best! On time, smooth service. Thank you!
Mary - Woodridge, IL 60517
As usual, excellent.
So glad I found this company. Technician, Mark, is great.
Marcella - Aurora, IL 60502
Very professional. Contactless service he did everything outside, which we appreciated.
The yearly service contract is very reasonable. Thank you.
Melissa - Westmont, IL 60559
Servicing air conditioner
We will be a forever customer withTempco as long as Mark is the technician. He has a wealth of knowledge on heating and air systems. He is extremely cordial and when he starts he always ask if we have any questions and when he is finished the same. He always takes his time to address any concerns.
Robert - Warrenville, IL 60555
Great service
Beverly - Aurora, IL 60502
Mark is so nice, and very professional
It is always a pleasure to have a professional person on site, He is honest, and is always very pleasant is truly 5 star service. Thank you for coming during this world pandemic.
Nancy - Aurora, IL 60502
Mark Johnson was EXCELLENT
Mark Johnson was a class act. I felt very comfortable with him at my house and would love for him to keep servicing my house. You just earned a lifelong customer because of Mark. He is a great guy and you should keep him no doubt! Explained everything and truly cared about us learning it! Love business w nice people
Jason Roach - Plainfield, IL 60585
The service from Tempco was great.
I really appreciate the friendliness and willingness to explain and answer questions. The installer was patient and explained in detail every question I had for him. I was really impressed by their service.
Joseph - Lemont, IL 60439
The Best
Mark is always on time and very professional. Very knowledgeable and answers all of our questions!
John - Willow Springs, IL 60480
Great Customer Service
Mark is always very helpful, knowledgeable, and respectful of your home.
Lori - Romeoville, IL 60446
Experienced and knowledgable
Rob - Plainfield, IL 60586
Great
Mark did a great job as usual. He makes sure he completes what needs to be done and then inquires if we have any questions. Very thorough.
James - Lockport, IL 60441
Great service
Margaret - Aurora, IL 60504
great
good service and a nice guy
William - Aurora, IL 60502

Job Locations

Mark J.
Mark J.
Furnace service and balance system
Lockport, IL 60441
Mark J.
Mark J.
Carrier furnace maintenance
Aurora, IL 60504
Mark J.
Mark J.
Carrier furnace service
Channahon, IL 60410
Mark J.
Mark J.
Carrier furnace maintenance -Cleaned and checked operation of furnace everything checks ok
Winfield, IL 60190
Mark J.
Mark J.
Carrier furnace service - balance system
Plainfield, IL 60585
Mark J.
Mark J.
Dual Furnace maintenance
Naperville, IL 60540
Mark J.
Mark J.
Install Aprilaire humdifier
Lisle, IL 60532
Mark J.
Mark J.
Carrier furnace Maintenance -Cleaned and checked operation of 2 furnaces and 2 humidifiers everything checks ok
Downers Grove, IL 60516
Mark J.
Mark J.
Carrier furnace service
Plainfield, IL 60544
Mark J.
Mark J.
Furnace maintenance -Cleaned and checked operation of furnace and humidifier everything checks ok
Lemont, IL 60439
Mark J.
Mark J.
Furnace service
Downers Grove, IL 60515
Mark J.
Mark J.
Carrier Furnace service
New Lenox, IL 60451
Mark J.
Mark J.
Carrier Furnace Service
Plano, IL 60545
Mark J.
Mark J.
Carrier furnace - Balance system
Oswego, IL 60543
Mark J.
Mark J.
Carrier furnace - Adjusted return in master also removed brace from run in basement to get rid of ticking
Oswego, IL 60543
Mark J.
Mark J.
Carrier furnace balance system
Oswego, IL 60543
Mark J.
Mark J.
Installed Aprilaire 500m
North Aurora, IL 60542
Mark J.
Mark J.
Carrier furnace warranty -Adjusted blower up for heat balanced to get more air to master bath
Plainfield, IL 60544
Mark J.
Mark J.
Balanced HVAC system - Adjusted blower speed.
Oswego, IL 60543
Mark J.
Mark J.
Carrier furnace maintenance -Cleaned and checked operation of furnace everything checks ok Added gasket to condensate trap
Lockport, IL 60441
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
Lemont, IL 60439
Mark J.
Mark J.
Furnace maintenance
Naperville, IL 60563
Mark J.
Mark J.
Lennox furnace maintenance -Cleaned and checked operation of furnace and humidifier everything checks ok
Aurora, IL 60506
Mark J.
Mark J.
Carrier furnace service
Lockport, IL 60441