Expert Roofing Services in Decatur IL

Watertight Roofing Solutions for Your Home & Business

In Central Illinois, your roof is the first line of defense against our unpredictable weather. From heavy snow loads in winter to severe hail and wind in the spring, your property needs a roofing company near you that understands the local climate and how to protect against it.

At Promax Construction, we have been building that protection since 2000. Founded by John Schilawski and family-operated to this day, we have spent over 25 years establishing ourselves as the go-to experts for roofing services in Decatur and the surrounding communities. We aren’t just contractors; we are your neighbors. We believe in offering “Quality Workmanship, Superior Knowledge, and Low Prices”—a combination that ensures you get the best value without compromising on safety.

Whether you need a licensed roofing contractor for a small residential repair or a full-scale commercial installation, Promax delivers watertight roofing solutions backed by industry-leading warranties and a reputation for integrity. When you choose Promax, you are choosing a company that has completed over 4,000 projects with a singular focus: getting the job done right the first time.

Our Specialized Roofing Services

We don’t just “do roofs.” We operate several experienced crews with the specific skills required to tackle the toughest roofing projects. From traditional shingles to complex commercial systems, our team has seen it all.

Here is a look at the specific capabilities we bring to your project:

Asphalt Shingle Install and Repair:

As a GAF Certified Residential Roofing Contractor and a CertainTeed SELECT ShingleMaster, we offer the highest quality architectural and 3-tab shingles available. We ensure every nail is placed correctly to maximize wind resistance.

Flat Roofs:

Flat roofing requires specialized knowledge to prevent pooling water and leaks. We provide durable flat roofing services for homes and businesses, ensuring proper drainage and sealing.

EPDM Roofs:

For commercial properties or flat residential sections, EPDM (rubber roofing) offers incredible durability. Our crews are experts in installing these long-lasting systems.

Granulated Rolled Roofing:

A cost-effective solution for low-slope roofs on porches, garages, and sheds that still demands professional installation for longevity.

Storm Damage Restoration:

When disaster strikes, you need immediate help. We specialize in storm damage roof repair service, handling everything from wind-lifted shingles to structural impact damage.

Hail Damage & Tree Damage:

Hail can silently destroy a roof’s integrity, and fallen limbs cause immediate crises. We are equipped to handle emergency roof tarp service near you to secure your home before permanent repairs begin.

Storm Damage Insurance Consultation:

dealing with insurance claims can be a headache. We have deep experience helping homeowners navigate the claims process to ensure they receive the coverage they deserve.

Roof Components:

A roof is a system, not just shingles. We handle Chimney Flashing, Ventilation, and are Velux Certified Installers for skylights, ensuring every penetration in your roof is sealed tight.

Who We Serve: Residential and Commercial Experts

Promax Construction is uniquely positioned to handle a wide variety of clients. We are large enough to handle massive projects but small enough to care about the details of your home.

Residential Roofing Services

Your home is likely your largest investment. We treat it that way. We provide comprehensive residential roofing services, helping homeowners in Decatur, Springfield, Champaign, and Bloomington protect their families. Whether you need a full tear-off and replacement or a targeted roof shingle repair service, we arrive on time and treat your property with respect.

Commercial Roofing Services

Business owners cannot afford downtime caused by a leaky roof. Our commercial roofing services are designed for durability and speed. We work efficiently to minimize disruption to your operations while installing high-performance roofing systems that stand the test of time.

Our Service Area:

We proudly serve a 65-mile radius around Decatur, IL, including:

Springfield, Chatham, & Sherman
Champaign, Urbana, & Savoy
Bloomington-Normal Area
Shelbyville, Taylorville, & Clinton
Jacksonville, Mattoon, & Lincoln

Our Process: From Inspection to Clean-Up

Roofing can be a messy, loud business, but our process is designed to make it as smooth and stress-free for you as possible. Here is how we deliver professional roofing services:

Free Roof Inspection & Consultation: It starts with a call. We provide roof inspection services to assess the true condition of your roof. We look for hidden signs of rot, storm damage, and wear that untrained eyes might miss.
Transparent Bidding: We provide roofing estimates near you that are clear and honest. We meet you at the job site to explain exactly what needs to be done. We believe in “Low Prices,” but never “Cheap Work.”
Material Selection: We help you choose the right materials for your budget and aesthetic. With our certified status, we can offer GAF and CertainTeed products that come with superior warranty protection.
Expert Installation: Our crews are employees and trusted partners, not random subcontractors. They are trained, insured, and experienced.
Site Protection & Cleanup: This is where we truly shine. We use magnets to catch stray nails and tarps to protect your bushes and flowerbeds. We are incredibly cognizant of leaving the area better than when we found it.

Why Choose Promax: Unbeatable Value & Proven Reliability

You have many choices when searching for roofing contractors near you. However, few can match the combination of value, security, and proven results that Promax offers.

Best Value Through Wholesale Buying

We combine quality workmanship with low prices to provide affordable roofing services unmatched by our competitors. How? We cut costs by purchasing materials wholesale and maintaining long-term relationships with our staff, passing those savings directly to you.

Peace of Mind with Industry-Leading Warranties

Most contractors offer a standard 1-year workmanship warranty. At Promax, we stand behind our work with a 5-Year Workmanship Warranty. Furthermore, as certified installers, we can offer extended manufacturer warranties—up to 50 years on CertainTeed shingles.

Licensed, Insured, and Safe

We are an unlimited licensed roofing contractor in the state of Illinois. This is critical. Many “fly-by-night” handymen offer cheap prices because they don’t carry proper liability insurance. If they get hurt on your property, you could be liable. With Promax, you are fully protected.

Real Experience, Real Reviews

With over 4,000 completed projects, our reputation speaks for itself.

"Promax gave a great, competitive quote. Then they came in and had one of the most professional crews I've seen. They put our roof on quick but not cheap."

Kyle J.
"Promax was great! They came through in a clutch for my mom... The roofing repair was quick and all questions and concerns were answered promptly."

Lenora W.

Frequently Asked Questions About Our Roofing Services

Should I always go with the contractor who provides the lowest estimate?

No. If a bid is too low, it is often a sign of inexperience, poor ethics, or a lack of insurance. A “fly-by-night” contractor may cut corners or try to upcharge you later. As a legitimate roofing company near you, Promax keeps overhead low to give you a great price, but we never sacrifice the licensing and insurance that protect you.
What is the timeline for the project?

Timelines vary based on the size of the roof, but we specialize in saving you time. We have a large network of roofers and support staff to ensure we can finish your project in a reasonable timeframe. We work fast and efficiently to get your life back to normal.
Do you offer warranties on your roofing work?

Absolutely. We offer a 5-year workmanship warranty on all our services to protect you from installation issues. Additionally, we offer competitive extended warranties on GAF and CertainTeed products.
Can you help with storm damage or insurance claims?

Yes. We have extensive experience with storm damage roof repair service and insurance consultation. If your home has been hit by hail or wind, call us for an inspection before you file a claim. We can help assess the damage accurately.

Ready for a New Roof? Contact Promax Construction Today

Don’t wait for a small leak to turn into a major structural problem. Whether you need a free roofing consultation, a storm damage assessment, or a full roof replacement, Promax Construction is ready to help.

We provide the best roofing services near you because we care about your home as much as you do.

(217) 424-8900 Request Free Estimate 141 W Main St, Decatur, IL 62523 info@promaxconstruction.com

Part of Our Comprehensive Exterior Services

A secure home requires more than just good shingles. Your roof works in tandem with your gutters, siding, and attic ventilation to keep your home healthy. As a full-service construction company, Promax offers a comprehensive suite of services to ensure every part of your exterior is up to the task.

Explore our related services:

Family-Owned Roofing Services You Can Trust in Decatur & Central Illinois