Know your price before we knock.
One honest number, owner-backed.
See your roof price online in 60 seconds — then a licensed Guthix roofer confirms it in person with a free inspection and photos of everything we find. The price is set by the owner's cost sheet, not by whoever is sitting at your kitchen table. No 3-hour pitch, no games. Residential & commercial roofing, siding & gutters across Downriver and metro Detroit.
Instant quote: just your name and mobile, no phone call, no salesperson. Open Mon–Sat 8–6.
“Used their services and they were great! No delays, on time, and even better no roof leaks!!”
“we noticed a water stain on the upstairs ceiling after that storm. called guthix and they managed to fit us in the next day. greg got up there and took a photo showing where the flashing…”
“Needed my roof replaced, called Guthix and got it done very quickly and professionally. Greg was honest, easygoing, and was always available to handle any questions. The crew was very swift…”
Recent work from our crews
Photos from recent Guthix jobs. We leave out locations and blur house numbers, plates and faces to protect our customers' privacy. Ask to see more at your free inspection.
Roof Replacement, Repair & Gutters in Wyandotte and Downriver
Guthix Roofing is a licensed roofing, siding and gutter contractor based in Wyandotte, Michigan. Most of our work is within ten miles of home — Southgate, Riverview, Lincoln Park, Allen Park, Trenton, Grosse Ile and the rest of the Downriver communities below — with the rest of Wayne County and metro Detroit beyond that. We replace and repair roofs, install vinyl siding and seamless gutters, and add blown-in attic insulation and ventilation, with monthly payment options available.
Real eyes on your home — before small problems get expensive
Most roof problems can't be seen from the ground. Michigan's freeze-thaw cycles, wind, and ice quietly work on your shingles, flashing, and seals every year — and by the time a stain shows up on your ceiling, the damage above it is already done.
A licensed pro, actually on your roof
Not a drive-by, not a guess from the street — we get up there and inspect shingles, flashing, vents, seals, gutters, and siding up close.
Photos of everything we find
You see exactly what we see — good or bad — so you're never taking a stranger's word for what's up there.
A straight recommendation
Repair it, replace it, or leave it alone. If your roof has years of life left, we'll tell you that too — and you'll have it in writing.
Storm damage documented for insurance
If weather did the damage, we photograph and document it properly and help you navigate the claim so nothing legitimate gets missed.
The person who quotes your roof answers for it
Free inspection, photos of what we find, every line item in writing. You see the same price on paper that you'd see on the invoice.
On a complete Owens Corning roof replacement we register the Owens Corning System Protection Limited Warranty (up to 50 years of non-prorated material coverage on single-family homes), and our own 10-year Guthix workmanship warranty covers the installation. Both in writing before you sign. Greg, the owner, sets every price and supervises every job; inspections are done by Greg or a member of his small local team, and installation is by a vetted local crew that works under Guthix's license, insurance, and warranty. Projects stay on schedule even with Michigan's unpredictable weather, and the person who quoted your roof is the person responsible for it.
Greg Tittle · Owner, Guthix Roofing · Wyandotte
“Every price comes off my cost sheet, every install runs under my license and warranty, and I'm the one who answers for it — before and after the deposit. Whether it's me or someone on my team on your roof, you get the same photos, the same straight answer, and the same number.”
- Michigan Licensed Residential Builder #262600716
- Insured & BBB Accredited
- Owens Corning Preferred Contractor · 10-Year Workmanship Warranty
- Repair it, replace it, or leave it alone — you get a straight answer
Owens Corning Preferred ContractorOwens Corning system coverage on a complete replacement, plus our 10-year workmanship warranty
Guthix Roofing is an Owens Corning Roofing Preferred Contractor. That status lets us register an upgraded Owens Corning warranty that standard installers can't offer, and our own written workmanship warranty covers the installation.
Up to 50-Yr Owens Corning System Warranty*
On a complete Owens Corning roof replacement, we register the Owens Corning System Protection Limited Warranty within 60 days. On a single-family detached home it gives you up to 50 years of non-prorated (TRU PROtection®) material coverage (20 years on other structures) on your shingles and the qualifying Owens Corning components we install with them: Starter Strip Plus, ProEdge® hip & ridge, WeatherLock® ice & water barrier, and ProArmor® underlayment. Installers outside Owens Corning's Preferred program can't offer it. It doesn't apply to repairs, partial or low-slope roofs, siding, or gutters.
10-Year Workmanship Warranty
The Owens Corning warranty covers the materials. Our 10-year Guthix workmanship warranty covers the installation itself, including leaks caused by how the roof was put on. Greg answers for it directly, and both warranties come to you in writing before you sign.
Read Owens Corning's System Protection warranty terms *Owens Corning System Protection Limited Warranty on a complete Owens Corning roof system installed by an Owens Corning Preferred Contractor and registered within 60 days. Limited lifetime material coverage with a 50-year non-prorated (TRU PROtection®) period on single-family detached homes; 20 years on other structures. Material only; workmanship is covered by our 10-year warranty. See the warranty for terms.Limited warranty. The System Protection warranty requires a qualifying Owens Corning roofing system and is subject to Owens Corning's complete terms, conditions, and limitations. Owens Corning does not cover workmanship. Owens Corning Roofing Preferred Contractors are independent contractors and are neither affiliates nor agents of Owens Corning Roofing and Asphalt, LLC, or its affiliated companies.
Roofing, siding & gutters
Residential and commercial: roof replacement and repair, flat roofs, siding, gutters, gutter guards, and blown-in attic insulation and ventilation. One licensed contractor, one itemized quote.
Roof Replacement
Full tear-off down to the deck and a complete Owens Corning Duration® shingle system — starter, underlayment, ice & water barrier, hip & ridge — with every line item priced in writing.
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Siding Replacement
Complete vinyl siding replacement, not a cover-up: full tear-off, taped housewrap, insulation board, premium CertainTeed siding, ventilated soffit, and aluminum-wrapped trim — at a transparent per-square price.
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Gutter Replacement
Seamless aluminum gutters formed on-site to the length of your house, so there are no seams along the run to leak. Sized and pitched to keep water off your fascia and away from your foundation.
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Gutter Guards
Keep leaves, maple seeds, and pine needles out and stay off the ladder. We install LeafBlaster Pro stainless steel micro-mesh guards, backed by the manufacturer's warranty, on new or sound existing gutters, with an honest recommendation based on your actual tree cover, priced as its own line item.
Learn MoreRather start with a number?
Our instant quote tool measures your roof from satellite imagery and shows you an honest, itemized price range online — just your name and mobile, no phone call, no salesperson. Then we confirm it in person with a free inspection whenever you're ready.
Design your roof, down to the shingle
Browse every Owens Corning® Duration® shingle color on a real home in our Color Studio — then get the look you love priced in seconds.
Open the Color StudioOwens Corning® Duration® colors available in Michigan — on-screen color is approximate.
What happens after you call
No three-hour pitch at your kitchen table. Here's the whole thing.
Book Your Appointment
Tell us what you need looked at — roof, siding, gutters, or all three — in 30 seconds, or give us a call. We confirm the same business day and show up when we say we will.
We Get On Your Roof
A licensed pro inspects shingles, flashing, vents, seals, and gutters up close — and photographs everything worth seeing, good or bad.
Honest Findings, Itemized Quote
We walk you through the photos and give you a straight recommendation. If work makes sense, you get a transparent, line-item quote — no hidden costs.
Professional Install & Warranty
A vetted local crew installs under Guthix's license and insurance with Greg supervising, cleans up fully, and the job is backed by our 10-year workmanship warranty in writing. On a complete Owens Corning roof replacement we also register the Owens Corning System Protection Limited Warranty.
Questions we get a lot
Straight answers. If yours isn't here, give us a call.
A licensed local pro gets on your roof and checks shingles, flashing, vents, seals, and gutters up close. We photograph what we find and walk you through it in plain English, with a straight recommendation: repair it, replace it, or leave it alone. It takes about 30–45 minutes, it's completely free, and there's no obligation.
Most Downriver homes run $6,800 to $12,300 for a full tear-off and replacement with Owens Corning Duration architectural shingles; larger two-story colonials run about $12,300 to $18,800. A second layer of old shingles adds $1,000 to $1,200 to strip. Type your address into our instant quote and you'll see your own range in about a minute — just your name and mobile, no phone call, no salesperson — and every number is itemized in writing at the free inspection.
Architectural asphalt shingles are the most popular choice for Michigan homes — a strong balance of durability, value, and resistance to freeze-thaw cycles, snow, and wind. We install Owens Corning Duration® shingles, plus an impact-resistant Duration® FLEX upgrade for added protection against hail and high winds. We'll walk you through the choices and help you pick what's right for your home and budget.
Most residential roof replacements are completed in one to three days, depending on the size and complexity of your roof and the weather. Greg, the owner, sets every price and supervises every job; inspections are done by Greg or a member of his small local team, and installation is by a vetted local crew that works under Guthix's license, insurance, and warranty. The crew keeps a clean worksite and finishes with a full walkthrough.
Yes. Guthix Roofing LLC holds Michigan Residential Builder license #262600716 (LARA Bureau of Construction Codes), carries general liability insurance with the certificate available on request, and is a BBB Accredited Business. We pull the permit and follow the local and Michigan building codes on every project — in Wyandotte, across Downriver, and throughout metro Detroit.
Yes. Alongside our residential work, we handle commercial roofing across metro Detroit — flat and low-slope roofs on commercial buildings, from repairs to full replacement. Commercial work gets the same Guthix approach as our residential roofing: a free on-site inspection, photos of what we find, and a written, itemized quote before any work begins. Call us to talk through your building.
On a complete Owens Corning roof replacement we register the Owens Corning System Protection Limited Warranty (up to 50 years of non-prorated material coverage on single-family homes), and our own 10-year Guthix workmanship warranty covers the installation. Both in writing before you sign. The Owens Corning System Protection Limited Warranty covers the shingles and the Owens Corning starter, hip & ridge, ice & water barrier, and underlayment we install with them as one system. It requires a complete Owens Corning roof system registered within 60 days (we register it for you); the 50-year non-prorated period applies to single-family detached homes (20 years on other structures), and it covers materials only. It does not apply to repairs, partial or low-slope roofs, siding, or gutters. Our workmanship warranty covers leaks caused by the installation. You get both documents with your estimate, not after the deposit.
Yes. Guthix Roofing is an Owens Corning Roofing Preferred Contractor. Owens Corning lists us in its contractor network; ask us for a copy of our Preferred Contractor certificate. Preferred status is what lets us register the Owens Corning System Protection Limited Warranty on a complete Owens Corning roof replacement (up to 50 years of non-prorated material coverage on a single-family detached home, 20 years on other structures, registered within 60 days), which installers without Owens Corning credentials can't register.
Curious how many good years your roof has left? Take the free 60-second roof life checkup — no contact info required.
Wondering what shape your roof is really in?
Book a free, no-obligation appointment — roofing, siding, or gutters. A licensed local pro on site, photos of everything we find, and a straight answer about what your home actually needs.