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 strong customer satisfaction and trust. Customers consistently express appreciation for the company's reliability, professionalism, and honest business practices. A dominant theme is the emphasis on trustworthiness and integrity, with reviewers highlighting how the company prioritizes customer interests over unnecessary upselling or overcharging. Long-term loyalty is evident, with customers expressing confidence built over many years of service. The technicians are frequently praised for being knowledgeable, personable, and punctual, creating a sense of dependability that customers clearly value. Communication and ease of scheduling are noted as strengths, contributing to a smooth and stress-free service experience. The tone throughout is one of genuine appreciation and recommendation, with customers expressing gratitude for the quality workmanship, efficiency, and courteous interactions. Overall, the reviews convey a strong sense of satisfaction with both the technical expertise provided and the customer-focused approach that fosters lasting relationships.

At a glance

Tempco Heating and Air Conditioning has completed 25 jobs between March 2025 and July 2025.

The most recent job was on July 29, 2025.

Recent work covers Aurora, IL, Naperville, IL, Oswego, IL, Bolingbrook, IL and Plainfield, IL.

Job Locations

Mark J.
Mark J.
AC maintenance
Bolingbrook, IL 60490
Mark J.
Mark J.
AC maintenance
Bolingbrook, IL 60490
Mark J.
Mark J.
AC maintenance
Bolingbrook, IL 60490
Mark J.
Mark J.
AC maintenance
Warrenville, IL 60555
Mark J.
Mark J.
AC maintenance
Naperville, IL 60540
Mark J.
Mark J.
AC maintenance
Naperville, IL 60564
Mark J.
Mark J.
AC maintenance
Naperville, IL 60564
Mark J.
Mark J.
Balance heating system
Plainfield, IL 60544
Mark J.
Mark J.
Furnace service
Naperville, IL 60564
Mark J.
Mark J.
Balance heating system
New Lenox, IL 60451
Mark J.
Mark J.
Furnace service
Aurora, IL 60504
Mark J.
Mark J.
ERV duct
Oswego, IL 60543
Mark J.
Mark J.
ERV service
Oswego, IL 60543
Mark J.
Mark J.
Microwave duct
Oswego, IL 60543
Mark J.
Mark J.
Furnace noise isue
Plainfield, IL 60585
Mark J.
Mark J.
Furnace service
Oswego, IL 60543
Mark J.
Mark J.
Furnace service
Aurora, IL 60506
Mark J.
Mark J.
Furnace service
Western Springs, IL 60558
Mark J.
Mark J.
Furnace service
Naperville, IL 60564
Mark J.
Mark J.
Thermostat
Aurora, IL 60504
Mark J.
Mark J.
Furnace service
Lemont, IL 60439
Mark J.
Mark J.
Ductwork
Aurora, IL 60504
Mark J.
Mark J.
Furnace service
Aurora, IL 60504
Mark J.
Mark J.
Furnace service
Oswego, IL 60543
Mark J.
Mark J.
Ductwork noise
Orland Park, IL 60462