What Drives the Cost of a Roof Replacement in Michigan

People ask us the same thing at the kitchen table before we've even looked up at the shingles: what's this going to cost? It's a fair question, and the honest answer is that no roofer can give you a real number from the curb. A roof replacement is a pile of small facts about your particular house, and each one moves the total. This article walks through those facts so that when you get estimates, you know what you're comparing.

Size and pitch come first

The bigger the roof, the more material, the more labor, the more dumpster. That part is obvious. What surprises people is that the footprint of the house is not the same as the roof. A simple rectangle of a ranch in Taylor or Westland is a very different job from a Colonial in the Grosse Pointes with dormers, a couple of valleys and a bay window roof tacked on the side. Every valley, dormer and wall that meets the roof adds cutting, flashing and time.

Pitch matters just as much. A low slope is easy to walk and easy to stage materials on. A steep roof means roofers working with harnesses and roof jacks, carrying bundles up carefully, and moving slower because safety comes first. If you've ever seen a crew on a steep church roof with bundles stacked up at the ridge, you know that steep work is a different animal than a gentle ranch roof.

How many layers are up there

Plenty of older Detroit-area homes have been roofed more than once. Sometimes a previous owner put a second layer of shingles right over the first to save a step. When we tear off, every extra layer is more weight to pull off, more debris to haul and more time on the job. We can't always tell from the ground how many layers you have. Sometimes you can see it at the rake edge, where the shingle stack looks thick. Sometimes you only find out once the first row comes up.

What we find under the shingles

This is the one nobody can price exactly before the work starts. The decking is the wood under your shingles, and it's what everything else is nailed to. If a roof has leaked for years, or if the attic has had moisture problems, the decking can go soft or rot. Water also likes to hide around chimneys and in valleys, so those spots deserve a close look.

Our rule is simple. Sound decking stays. Soft or rotten decking gets replaced before new roofing goes on, because a brand new roof nailed to bad wood is a bad roof. A good estimate will tell you up front how decking replacement is handled if we find it, so there are no surprises mid-job. Ask every roofer you talk to how they handle it.

Asphalt, metal, and what each asks of the job

Material is the biggest lever you control. Asphalt shingles are what most Michigan homes wear, and they come in a range of grades and styles. We install Owens Corning, TAMKO and GAF, and we're certified with all three. On qualifying shingle systems you also get the manufacturer's limited lifetime warranty on top of our 10-year labor warranty.

Metal roofing is a different system. It lasts a long time and sheds snow well, but the panels, trim and fasteners are specialized, and the installation takes a different skill set. It usually costs more up front than asphalt. Whether that trade makes sense depends on how long you plan to stay in the house and what you want the roof to do. We'll lay out both honestly and let you decide.

Ventilation, ice and water, and the small parts

The line items people skip over are the ones that protect the roof in a Michigan winter. Here's what to look for on any estimate:

• Ice and water protection along the eaves, where ice dams like to form and push water up under shingles.
• Ridge and intake ventilation, so the attic can breathe and the roof deck doesn't cook in summer or collect moisture in winter.
• New flashing at chimneys, walls and valleys instead of reusing worn metal.
• Pipe boots and vents replaced, since rubber boots crack long before shingles wear out.
• Drip edge and underlayment described by type, not just listed as "materials."

If an estimate is one line that says "re-roof," you can't compare it to anything. Ask for the details in writing.

How to get a number you can trust

Get the estimate in writing, after someone has actually been on or at the roof. Ours are free and written. We also stand behind a simple promise: we will beat any written estimate from a licensed and insured roofer. Bring us the other one, and we'll go through it line by line so you're comparing the same scope of work.

If a lump sum feels heavy, ask about financing. We're a Michigan Saves partner, Contractor ID 203929, and we offer discounts for seniors, veterans and first responders. Ted Thompson, who owns the company and served in the US Army during Desert Storm, still looks at the larger jobs himself.

Call T&M Roofing at (313) 600-4538 and ask for a free written estimate. We work in Detroit, Dearborn, Livonia, Royal Oak and the communities around them, about 60 miles from our office on Schaefer Highway.