Let's answer the question directly, because most roofing websites won't: in 2026, a typical asphalt-shingle roof replacement in metro Detroit runs roughly $5.50 to $6.50 per square foot of roof surface, installed. For the homes most of us work on — Downriver ranches, two-story colonials, 1920s bungalows — that usually lands somewhere between $9,000 and $19,000. Those are typical ranges, not promises, and the honest reason nobody can quote your exact roof over the phone is what the rest of this article is about.
Once you understand the handful of factors that actually move the number, you can read any roofing quote the way a contractor does — and spot both the padded bid and the dangerously cheap one.
Roofers measure in squares, not square feet
The first thing to know: your roof is bigger than your house. Roofing is measured in "squares" — one square is 100 square feet of roof surface. Because a roof is pitched, and because it overhangs the walls at the eaves, the roof surface is always larger than the floor plan underneath it. A house with a 1,500-square-foot footprint does not have a 1,500-square-foot roof; depending on the pitch, the actual surface can be substantially more. This is why any quote based on your home's listed square footage is a guess, not a measurement.
What actually drives the price
Every legitimate roofing quote in Michigan is built from the same handful of ingredients. When two bids come in far apart, one of these is usually the reason.
- Roof size. The number of squares is the single biggest factor — more surface means more shingles, more underlayment, and more labor hours.
- Pitch and steepness. A steep roof is slower and riskier to work on. Crews need harnesses, more staging, and more time, so a steep colonial costs more per square than a walkable ranch.
- Complexity. Hips, valleys, dormers, and multiple facets all add cutting, flashing, and detail work. A simple two-plane gable is the cheapest shape to roof; a cut-up roofline with a dozen facets is not.
- Existing layers. Building code generally caps a roof at two layers of shingles, so plenty of older homes have a second layer that has to come off. Tearing off two layers means more labor and more disposal weight than one.
- Material tier. Architectural shingles like Owens Corning Duration are the metro-Detroit standard. Stepping up to an impact-resistant shingle like Duration FLEX typically adds roughly 10% to the project.
- Decking and ventilation. Rotten deck boards must be replaced before new shingles go on, and poor attic ventilation should be corrected during the job — both add real cost, and both protect the rest of your investment.
- Permits and disposal. Roofing permits, the dumpster, and landfill fees are genuine line items. If a bid doesn't account for them, ask why.
One of those deserves a special note: nobody — not us, not anyone — can see the condition of your roof deck until the old shingles come off. An honest contractor handles this by writing a per-sheet price for decking replacement into the contract up front, so a surprise underneath never turns into a surprise on the bill.
Architectural vs. impact-resistant shingles
Most replacements around here use architectural (dimensional) shingles — we install Owens Corning Duration as our standard. The upgrade is an impact-resistant shingle like Duration FLEX, which carries a Class 4 impact rating, the highest tier, and typically runs about 10% more on the total project. For homes that have taken hail or wind-driven debris before, it's worth pricing out — and some insurers offer premium discounts for Class 4 shingles, so a quick call to your agent before you decide can change the math.
Why per-square-foot phone quotes mislead
You'll see per-square-foot numbers thrown around — including ours at the top of this article — and they're useful for a ballpark, nothing more. Two houses with identical footprints can have wildly different roofs: one a low-pitch ranch with two facets, the other a steep colonial with dormers, valleys, and two old layers hiding under the surface. Same square footage on paper, thousands of dollars apart in reality. A contractor who gives you a firm price over the phone without measuring your roof is either guessing high to protect themselves or guessing low to win the job and "discover" the difference later. A real number requires a real measurement of your actual roof — its area, pitch, facets, and layers.
See your roof's instant price range
Where common metro-Detroit homes land
With those caveats in place, here's roughly where typical homes across Wayne, Oakland, Macomb, Washtenaw, and Monroe counties tend to fall in 2026 for a full tear-off with architectural shingles:
- Post-war ranches and bungalows — the classic Downriver and inner-suburb housing stock — often land roughly in the $9,000–$13,000 range.
- Larger two-story colonials and homes with steeper or more cut-up rooflines commonly run roughly $13,000–$19,000.
- Very large, very steep, or highly complex roofs — and designer or specialty materials — can go beyond that range.
Again: typical, not promised. Your roof is its own math problem, and the only way to solve it is to measure it.
Be careful with the suspiciously low bid
If one bid comes in thousands below the others, the money is coming out of somewhere. The usual suspects:
- No insurance. Uninsured crews are cheaper for a reason — if someone gets hurt on your property or your home gets damaged, that risk can land on you. Ask for proof of license and insurance; you can verify any Michigan builder's license number with the state.
- A layover instead of a tear-off. Nailing new shingles over old ones skips the tear-off labor and disposal cost, but it hides the deck, traps heat, can shorten or void manufacturer warranties, and shortens the new roof's life. We recommend a full tear-off, every time.
- No permit. Skipping the permit saves a fee and an inspection — the inspection that exists to protect you, not the roofer.
- Vague paperwork. No itemized scope, no per-sheet decking price, no written workmanship warranty. If it isn't in writing, it isn't part of the job.
A cheap roof you end up paying for twice isn't a cheap roof. The goal isn't the lowest bid — it's the lowest honest bid from a crew that will still answer the phone in year eight.
Getting a real number without the runaround
Here's how we handle pricing at Guthix Roofing: type your address into our online estimator and it measures your actual roof from satellite imagery — area, pitch, and complexity — then shows you an instant price range in about a minute. No phone call, no salesperson on your porch, no obligation. If the range looks right to you, we confirm the exact number with a free on-site inspection before anything gets signed. We're a licensed and insured Michigan builder (License #262600716) based in Wyandotte, we back our work with a 10-year workmanship warranty, and we serve Wayne, Oakland, Macomb, Washtenaw, and Monroe counties. Prefer to talk it through first? Call (734) 360-0805 — no pressure either way.
