Assumption Grotto Roof Replacement

24,000 sq. ft. roof replacement underway at Assumption Grotto Church in Detroit, Michigan. Tan Duro-Last membrane was used as the roof is sloped and visible from the ground. This project is going over the existing roof, and it was accomplished without the need for tear-off. It comes with a standard 15-year no dollar limit warranty for labor and materials.

A mechanically-attached Duro-Last roof is pre-measured and pre-cut with all the necessary accessories included. Installation by MacDermott Roofing is clean, without the use of any hazardous or polluting materials. It’s virtually waste-free.

MacDermott Roofing can install your new roof even during the cold winter months. With no disruption to your daily routine because of loud machinery or adhesive odors, distractions are at a minimum during roof installation.

MacDermott is our go to roofer!

We have several properties, they have handled all of our roofing needs. They do wonderful work and do what they say, which is rare. Good People, highly recommend!!!

Aaron V.

5 stars

MacDermott did an excellent job!

MacDermott Roofing just completed a roof replacement on my commercial building. As we've all experienced, it's very difficult to find quality and responsive contractors nowadays. But MacDermott did an excellent job of starting the job on time and on budget. Very pleased!

Aaron Verant

5 stars

Great company to work with!

Came out and got repairs done quick and haven't had any issues since.

A White

5 stars


Wanted to send a quick note and say thank you. Our roof at Farmington Y needed desperate repair and your crew did great! Thank you.

YMCA of Metropolitan Detroit

5 stars

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MacDermott Roofing Inc.
11770 Belden Ct
Livonia, MI 48150

MacDermott Roofing Inc.
Operations - Office:
9301 Southfield Rd.
Detroit, MI 48228


Mon-Fri: 7:00am-4:00pm
Sat-Sun: By Appointment


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Our Services Include: Commercial roof repair, new industrial roofs, roofing installation, storm damage, roof top replacement, roofing vent repair, contracting services, new commercial roofing installation, roof-top maintenance, restoration, duro-last contractor, low-slope and flat roof-systems for commercial, industrial, municipal, institutional customers, and more!