Mark Sundeen started Summit & Slate Roofing in 2005 after a decade installing roofs across DuPage County, tired of watching homeowners get burned by storm-chasers and subcontracted crews. He grew up in Wheaton and still lives here, so when he warranties a roof for 25 years he expects to drive past it for the next 25. Summit & Slate runs its own crews, never subs out the work, and holds GAF Master Elite certification, a standing fewer than 2% of US roofing contractors earn. Mark's standard is simple: tear off to the deck, fix what the last guy hid, flash it right, and leave a roof that survives a Chicago winter and an August derecho. He still climbs roofs on the hard ones.
The model hasn't changed: every installer is on our payroll, never a subcontracted crew with a different name on the truck, and the project manager who quotes your roof is the one who answers your calls until the final magnetic sweep.
What every crew commits to
- Background-checked & drug-tested
- Named in your contract
- OSHA-trained, harnessed on every job
- No radios before 8am in neighborhoods
- Daily magnet sweep of your property
- Photo updates at every milestone
Meet the crew
Our story, briefly
40+ years of combined experience
Mark Sundeen leads Summit & Slate Roofing with a crew that brings 40+ years of combined roofing experience to every job, built on one rule: tell homeowners the truth about their roof.
Satellite estimating Now
Homeowners get a real, firm price without a sales visit.