Promax has completed thousands of contracts with home and business owners in the central Illinois area. Promax Construction is an independent and family owned company founded in 2000 by John Schilawski. While the company is evolved over the years, John Schilawski continues to run the company with his wife Sharon.
Promax Construction's home base is in Decatur, IL, but we provide services to the greater central Illinois community including Springfield, Champaign, Bloomington, IL and any location within a 65 mile radius of Decatur, IL.
Promax Construction's home base is in Decatur, IL, but we provide services to the greater central Illinois community including Springfield, Champaign, Bloomington, IL and any location within a 65 mile radius of Decatur, IL.
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Services
Promax Construction serves the central Illinois area and beyond. Zion, Mattoon, and more! We combine quality workmanship, superior knowledge and low prices to provide you with service unmatched by our competitors. Work with us involve a carefully planned series of steps, centered around a schedule we stick to and daily communication.
We have a full line of windows. If you have a particular window in mind, call Promax to measure, order and install the window. A window installed by Promax usually qualifies for a lifetime manufacture warranty. We do custom replacement windows. There are tons of options when it comes to windows. We offer free consultations at your location.
Whether your looking to upgrade your kitchen/bathroom or restore a rental house, Promax Construction has specialists ready to tackle any project. Most interior projects require coordinating expensive carpenters, plumber, and electricians. Promax Construction is a general contractor with licensed professionals on staff.
Roofing is the flagship service of Promax Construction. Our company operates several experienced roofing crews with the sole focus on roofing. Our experienced applicators have seen it all and have the experience to tackle the toughest roofing projects. Promax Construction is a Certainteed Select Shingle Master which means our customers receive extended manufacturer warranties with Certainteed shingles.
Reviews (10)
Alex Miller
May 17, 2022
My roof was in need of repair for a number of years. As they began to engage in the work there was a significant amount of dry rot found. Very quickly they brought in a second crew to address the issue so that the roofers could finish their work. The entire time I was consistently informed of the changes needed, and they took my calls after business hours when I needed clarification on things I did not understand.
They worked within my budget and the work is absolutely perfect. They went above and beyond even sealing up small holes in other areas unrelated to the roof to help protect my investment. Tons of rain this year, completely dry attic and basement. Tremendous to work with.
They worked within my budget and the work is absolutely perfect. They went above and beyond even sealing up small holes in other areas unrelated to the roof to help protect my investment. Tons of rain this year, completely dry attic and basement. Tremendous to work with.
Joanna Embry
Jan 26, 2022
We have used Promax for the last 20 years. They have done a room addition, two bathrooms and other small jobs. We just had our bathroom gutted and our hall and a bedroom closet doors reconfigured. We are over the top pleased with the finished project. It looks like a new house! We highly recommend Promax. Service: Remodeling
Mail Recipient
Jan 21, 2021
John is absolutely the best. We are so delighted to have made his acquaintance and will not use anyone else ever again. They are reasonably priced but go above and beyond to deliver quality. They are proactive, have great communication skills, and are just all-around good people. What a relief it is to deal with true professionals. HIGHLY RECOMMENDED & John definitely deserves a BIG raise and a company car;.
Jim Humphrey
Jan 06, 2021
Promax just completed a new siding and doors project for us. John kept us up to date with the schedule and stayed on top of all of our concerns. The crew from Promax did outstanding work and exceeded our expectations. Their crew showed up on time every day and stayed with the project until it was finished. Unlike crews from some other companies we've seen that hop between jobs.
This was our first experience with Promax and we doubt it will be our last. John and Gino, I will highly recommend you whenever I get the chance, thanks for doing a great job.
This was our first experience with Promax and we doubt it will be our last. John and Gino, I will highly recommend you whenever I get the chance, thanks for doing a great job.
Lynn Burdick
Jan 04, 2020
Debbie Riggs
Feb 06, 2019
Neill Dresen
Dec 18, 2018
After my business Donnie's Homespun Pizza was robbed, I called John and he had someone over the same day to secure my back door with a temporary bolt lock. Promax met with our insurance claim adjustor and coordinated a contrat which was covered by our insurance. They installed a new door and lock system that works better than it was before the incident. The lock is much more secure know and has devies that make it more difficult to pry open. Service was great.
T. M.
Dec 07, 2018
My husband and I hired PROMAX 10 years ago to install 6 security doors on our home. They did a great job! This year we hired PROMAX to install a SAFETY SHOWER and SPA TUB plus an ON DEMAND HOT WATER heater and, once again, PROMAX did a great job. We trust our security doors and enjoy using our spa tub and shower. We plan to call PROMAX for projects we're planning for our home in the near future.
Lc M.
Nov 01, 2018
Patricia
Oct 26, 2017
The service I receive from Promax was very good. John always made sure I was satisfied with the completed job. Just this past Dec 2017 he had his contractor come to my home and install electric baseboard heaters when another company said my furnance was no good. John had his worker check furnance and it was good just a plug in the fluke. He made sure I wanted the heaters installed once I founded out the furnance was good. I can say my home has been very warm since. Thanks to him. All home improvement I had him do them. He is my personal contractor, Thank you John.