Quality Applied Systems, Inc.
about us

about us

Chillers on a Roof
Data Center

what we do

Quality Applied Systems, Inc. is a world class environmental engineering firm based in the Midwestern United States.

Our project history includes huge production complexes built by multi-national corporations in overseas markets to smaller schools and office buildings in our local region. Our specialities include commercial HVAC systems, data center climate control, indoor aquatic environments (pools and spas), and more. See a full list of the manufacturers we represent here.

Importantly, we do our work without a massive staff or sprawling offices. Our success comes from a close-knit, streamlined team of engineers and customer service professionals who maintain intense focus on each project. This tight operation enables us to provide our clients with a great deal of value — lower overhead and efficient communications mean we can handle complex projects with less cost. Providing a good value to our clients is about more than saving money, though, it’s about guaranteeing exceptional quality and customer service. And consistently delivering on that guarantee is what we are known for.

Over the years, products and suppliers have changed, but our clients have remained with us because of our exceptional expertise and service. Of course, we don’t rely only on past successes, so we’re continually refining our knowledge of the industry and pursuing new techniques and products to deliver the very best results.

Quality Applied Systems, Inc. has centrally located offices in Fort Wayne and Indianapolis, Indiana. Meet the good people who get the job done below.


Tim Blauvelt

President & Co-Founder
Environment Sales

Tim began his career working for Schenkel-Shultz as a Mechanical Engineer. After eight years of service, Schenkel-Shultz was going the way of so many large companies and eliminating Tim’s position. So the timing couldn’t have been better for Marc Grostefon to come along and ask Tim to partner with to form QAS.

Tim is QAS’ pointman for chillers, critical environment units, and system application. After 25 years in the business, he knows environmental systems like the back of his hand. Helping QAS establish a reputation as an honorable, dependable, and family-oriented business that cares for its clients and employees has been one of his priorities as president.

Tim lives in Fort Wayne with his wife and daughter. His son, Ross, works for QAS in the Indianapolis office.

Photo of Tim Blauvelt

Evan Smith

QAS Inc. Partner
Environmental Sales

Evan heads up our Indianapolis Sales Office and primarily represents our ClimateMaster and Addison lines of products. He’s a trusted partner for many of QAS’ customers — the go-to-guy engineers, technicians and owners who need custom solutions tailored to their needs. Evan’s an outside-of-the-box thinker who knows how to get challenging projects finished on time and on budget.

Additional, Evan is LEED Green Associate certified. This credential demonstrates a solid, current understanding of green building principles and practices. Evan maintains this certification through continuing education—meaning he offers a wealth of up-to-date knowledge for our clients.

Evan was born and raised in Leo, Indiana, just north of Fort Wayne. In his spare time, Evan and his wife are very active and enjoy all kinds of sports — basketball, volleyball, baseball, golf, and more. You might catch them on a boat in the summer months and snowboarding in the winter and always spending time with their 2 daughters.

Photo of Evan Smith

Ross Blauvelt

QAS, Inc. Partner
Engineering & Environmental Sales

Ross has worked since 2011 in sales and support from our Fort Wayne office. The summer of 2014 saw big changes for Ross and QAS.  Ross graduated from Indiana University—Purdue University, Fort Wayne with a Bachelor of Science in Electrical Engineering.  After completing his degree, Ross moved to Indianapolis to join Evan Smith where he’ll be focusing on his engineering sales career with dehumidification, precision cooling, and other HVAC applications.  Ross and his wife Natalia reside in Indianapolis with their son Everett, and the most recent addition of their son Brooks.       

 Ross was born and raised in Fort Wayne, Indiana, a true Hoosier.  In moving to Indianapolis, Ross has found that he loves being down in the capitol surrounded by his favorite sports teams.  A diehard fan of the Indiana Pacers and Indiana University Basketball; you can find him either watching the game locally or at the court.  In Ross’ spare time along with his wife, they enjoy playing volleyball, basketball, tennis, traveling or spending time with friends and their family.  

Photo of Ross Blauvelt

Mary Huis

Operations Manager

Our partners and clients rely heavily on Mary for ongoing support from the very beginning of a project to long after their systems have been installed. “No matter what product we are selling,” she explains, “our customers come back to us because of our great customer support.” She also manages our extensive Parts Department, Accounting, Human Resources, IT and Inside Sales.

Mary was born and raised in Fort Wayne, Indiana. She likes spending her leisure time with her husband Ron, four children and seven grandchildren. Her hobbies include music, traveling, cooking, hiking, gardening, Crossfit and many other outdoor activities.

Photo of Mary Huis

Sara Manes

Ordering Coordinator

After six years of being a stay-at-home mom, Sara joined the QAS, Inc. team in March of 2018.  In the short time Sara has been at QAS, she has reorganized the warehouse, filing systems, and receiving department.  She is the “go-to” when it comes to tracking shipments, warranty parts and equipment orders.

When Sara isn’t at QAS, she is a taxi for her two young girls who are involved in choir, dance and band.  She also plays an active role in her local PTA chapter, where she serves as President.  She and her husband Gary reside in Fort Wayne and can often be seen enjoying all the community events and festivals around town.

Photo of Sara Manes

Marc Grostefon


Marc received his education in manufacturing technology at Indiana University—Purdue University Fort Wayne, then went on to work as an HVAC engineer for several companies. When he eventually worked up to an administration position he asked himself: “Why am I working for someone else?” And so QAS was born with the help of his business partner, Tim Blauvelt, in Fort Wayne, Indiana.

After 25 years at QAS, Inc. Marc retired as Vice-President and Environmental Sales in June of 2020.  Marc will still be available for consultation by offering his knowledge of products and project assistance.

Thank you Marc for a wonderful 25 Years!

Photo of Marc Grostefon