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Timeless Beauty.
Rock-Solid Durability. Expertly Installed Slate.

Slate roofing is more than a statement — it’s a legacy. With its unmatched longevity and distinctive appearance, a professionally installed slate roof can protect your home for over a century.

At Custom Installations, we combine old-world craftsmanship with modern techniques to bring out the best in every slate system we install.

  • Fully Licensed, Insured & Certified
  • Over 50 Years of Local Roofing Expertise
  • Lifetime Workmanship Guarantee on New Installs
  • Certified Installer for Brava & DaVinci Synthetic Slate
847-932-4500
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By clicking "Submit", you agree to have Custom Installations contact you about a free estimate and keep you informed about sales in the future. We may use an auto-phone system to contact you by phone or text. You do not need to make a purchase or submit this form but instead can call (847) 932-4500 to arrange for a free estimate. Please be aware that all calls are recorded for quality and safety purposes. Privacy Policy

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Our Certifications & Trusted Brands

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Slate Roofing Contractor
Damaged roof shingles. Close-up view of weathered, cracked, and peeling dark grey roofing tiles, showing signs of deterioration

Cut Corners on Slate? Expect Big Problems Later.

Slate roofs are only as good as their installer. Poor installation leads to cracked tiles, water intrusion, and costly structural issues — which can show up years too late.

That’s why you need a team that understands how to handle natural materials with precision.

  • Improper flashing that invites slow leaks
  • Broken or uneven slate tiles from poor handling
  • Weight strain on the structure from miscalculations
  • Subpar ventilation leading to mold or rot

Why Choose Us for Your Slate Roofing Project

We’ve installed and restored slate roofs across Chicagoland and Metro Milwaukee for over five decades. From historical homes to high-end new builds, we bring deep expertise, fine detail work, and unmatched professionalism to every project.

  • Specialists in Vermont, Spanish, and Synthetic Slate
  • Full Slate Roof Installation, Repair & Restoration
  • Copper Flashing & Valley Work for Seamless Integration
  • Hand-Nailed Installations — No Shortcuts
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Why Homeowners Choose Slate in the Midwest

car in front of a spacious house

Built for Midwest Weather Extremes

Slate naturally resists high winds, driving rain, ice, and snow — making it a top-tier choice for Chicagoland winters and unpredictable storm cycles in the Great Lakes region.

Curb Appeal That Sets Your Home Apart

Whether you’re in Lake Forest, Mequon, or the North Shore, slate roofing makes a high-end statement that elevates your property’s value and architectural character.
driveway featuring two garage doors

Longevity You Can Count On

Most slate roofs last 75–100+ years with minimal maintenance. That means one installation can serve generations — with far fewer replacements than asphalt or synthetic options.

Ideal for Historic & Custom Homes

From century-old estates to modern builds with timeless flair, slate is the material of choice for homeowners who want durability without sacrificing style or authenticity.
Kochman Green Slate

Copper Compatibility for a Seamless Finish

Slate pairs beautifully with copper valleys, gutters, and flashing — and our in-house metal shop delivers a clean, hand-crafted fit that enhances both performance and curb appeal.
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“You Don’t Cut Corners on a 100-Year Roof.”

We treat every slate project with the care and detail it deserves — from the structure below to the finish on every tile. No rushed installs. No subcontracting. Just honest work from a contractor who’s built a reputation on doing things right.

  • Over 40,000 Exterior Projects Completed
  • Slate Specialists — Not Generalists
  • Family Operated Since 1969
Get Your Free Estimate

About Custom Installations, Inc.

We’re a second-generation, family-operated company built on one core belief:

Craftsmanship matters. Always has, always will.

With deep roots in Chicagoland and Metro Milwaukee, our team has served homeowners, architects, and builders since 1969. From small repairs to historical restorations, we deliver consistent, high-quality results.

Masterson Cedar Shake

Our Completed Projects

Explore our past work in your neighborhood.
Explore Our Gallery

Hear From Homeowners Like You

Discover what real homeowners are saying about their experience with us. From start to finish, our team is committed to delivering quality, reliability, and results you can trust.

More reviews

Greta Harrris

John Robinson & crew was a pleasure to work with: very professional, respectful & competent. They kept me informed of their work schedule at all times & even went the extra mile to address a vent issue that I did not know I had. I would highly recommend using Custom Installations for their quality of work & making the customer feel at ease answering every question. Very satisfied.

Carol Ann B.

My garage I had vinyl siding was done in one day . They did a great job I am so happy i had it done. the crew were working hard all day and the project manager, John Robinson, came often to check on the work. I will recommend this company to my friends.

Jonathan J.

John Robinson at Custom Installations was a pleasure to work with from beginning to end. He was extremely responsive, collaborative and nice, which is rare these days. His team worked diligently for nearly a month. Overall, it was a great experience to work with John and his team at Custom Installations.

Denali

Had Custom installations redo the entire exterior,(hardie board) roof, and gutters of our home and the results were great! Very professional and organized. Whenever I had a concern or question, my point of contact and project lead, John was an invaluable resource and took care of any issues or questions immediately. I was very impressed with his knowledge and ability to communicate my concerns and wants to whatever crew was working for the entirety of the project. Would definitely recommend and use custom installations on future projects.

Ryan Chitwood

I was in need of a metal crew that could do very high end copper work and was recommended this company by a major national player that owns a company in Denver, Co. The people at Custom Installations were amazing from start to finish, literally. They traveled here during the week for work and were so careful and respectful. Their copper/metal work is as good as I have ever seen. They just completed the most beautiful roof we have ever done for a homeowner. Their communication was fluid and consistent and we had zero issues. For a job with a ticket that size, we needed this to be a smooth process and Custom Installations Inc knocked it out of the park for us. Thank you guys!

Rob

Custom Installation was great to work with through this whole process. From the beginning, Ted Aydt Was very professional and thorough with the bid and immensely helpful with the insurance issues. On the job, the whole crew was great and so respectful. John Robinson was The project manager and always kept us up-to-date as did the office staff. I would definitely recommend them for your roofing job.

Will Lynn

Our old siding and part of our garage where damaged due to a storm which resulted in our house needing to be completely re-sided and part of the garage roof replaced. We chose Custom Installation not only for the quality of their work but their skilled teams knowledge of insurance claims. Bruce truly made this entire process as smooth as possible. We could lot be happier with how our house turned out.

Jacob Rosenfeld

We just hired Custom Installations to re-side & re-roof my home. We chose James Hardie, Board & Baton siding. The Custom Installations team was awesome, from my sales contact, Brad Hironimus, to the installers. Despite the house being originally constructed in the 1960's, it now looks brand new and I expect will further stand the test of time. The foreman assigned to our job, John Robinson, was exceptional. He was extremely responsive and always arrived on site with a great attitude. Whenever I had questions or concerns, he was easy to reach and successfully drove the team into delivering a fantastic result. I would definitely refer the Custom Installations team to anyone looking to improve their home.

Robert Tschurtz

We recently had a new asphalt roof installed on our residence here in Wisconsin. Mr. Pohlman and his crew were professional, timely, and exacting in the quality of their work. The project started and ended on time with no issues. Our property was left in the same condition as when they started. Mr. Pohlman was always available by email and personal cell phone for any questions, and personally on site. Overall, an excellent experience all the way around. Very rare these days.

Brett Paschke

The roof looks great and communication from Kevin and team was excellent throughout. Bob and the onsite team were up on the roof in below zero weather getting the job done.

David Held

Danny was able to arrange for contractor to remove the solar panels. He and his crew did a great job reroofing our home.

Jonathan Jonas

John Robinson at Custom Installations was a pleasure to work with from beginning to end. He was extremely responsive, collaborative and nice, which is rare these days. His team worked diligently for nearly a month. Overall, it was a great experience to work with John and his team at Custom Installations.

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What Homeowners Ask Us Most

Is my home a good fit for a slate roof?

Most slate roofs require a strong structural foundation due to their weight. We’ll inspect your home and determine if it’s slate-ready or if reinforcement is needed — all included in your estimate.
Natural slate roofs can last 75 to over 100 years with proper installation and minimal maintenance. It’s one of the most durable roofing materials available.
Natural slate is a stone quarried from the earth, offering unmatched longevity and appearance. Synthetic slate mimics the look but is lighter and more budget-friendly. We install both and can help you decide based on your goals and budget.
Yes. We specialize in sourcing and matching slate types for spot repairs or full historical restorations, ensuring consistency in color, thickness, and finish.
For many homeowners, yes. While the upfront cost is higher than asphalt, slate’s lifespan, weather resistance, and long-term value make it a smart investment, especially in areas with harsh seasonal weather like Illinois and Wisconsin.
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Got More Questions?

We’re here to help. Whether you’re unsure about roof types, warranty details, or what to expect during installation—we’ll walk you through it all with zero pressure.
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Find Out If We Service Your Area

Custom Installations, Inc. proudly serves homeowners, builders, and property managers across Chicagoland, Metro and Milwaukee.

Primary Service Areas:

Illinois

Wisconsin

Map of the United States featuring the Midwest, with a focus on Wisconsin and Illinois highlighted.

937 Campus Drive, Mundelein, IL 60060

10936 N Port Washington Rd, Suite 343
Mequon, WI 53092

Give Us a call.

Want answers fast? Talk directly with our team — no call centers, no runaround. We’re here to help with quotes, questions, and urgent service needs.

847-932-4500

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Prefer we reach out? No problem. Just share your info and we’ll give you a call — usually within the same business day.

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FAQ's Form

Can’t find your answer? Send us your question below.

By clicking "Submit Question", you agree to have Custom Installations contact you about a free estimate and keep you informed about sales in the future. We may use an auto-phone system to contact you by phone or text. You do not need to make a purchase or submit this form but instead can call (847) 932-4500 to arrange for a free estimate. Please be aware that all calls are recorded for quality and safety purposes. Privacy Policy
847-932-4500
Get A Quote

Free Estimate!

No spam. No obligation. Just straight answers and a clear quote.

By clicking "Submit", you agree to have Custom Installations contact you about a free estimate and keep you informed about sales in the future. We may use an auto-phone system to contact you by phone or text. You do not need to make a purchase or submit this form but instead can call (847) 932-4500 to arrange for a free estimate. Please be aware that all calls are recorded for quality and safety purposes. Privacy Policy

"*" indicates required fields

Step 1 of 4

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