Roof Replacement

Roof Replacement Done Right by 180 Contractors Roofing & Siding Full tear-off, architectural shingles, and a new roof built for Michigan winters

Roof replacement is the complete removal of your old roof down to the decking, followed by a rebuilt roof system installed to Michigan code. It is the largest exterior investment most homeowners ever make, which is why it should not go to the cheapest bid.

180 Contractors Roofing & Siding holds a 5.0 star Google rating across 258 reviews plus 617 verified GuildQuality reviews , and does a full tear-off instead of a shortcut layover every time.

Roof past twenty years old, curling and shedding granules, or leaking after every storm? A replacement resets the clock with a new 20 to 30 year system , and done right it is the last roof many homeowners ever buy.

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Verified & Independent

875 Neighbors Reviewed Us. Here Is What Roof Replacement Customers Say.

Our ratings below cover every job we do. The reviews we have pulled out are from homeowners who had us replace their roof.

  • 5.0
    Google Rating
  • 875
    Total Verified Reviews
  • 617
    GuildQuality Surveys
  • A+
    BBB Rated · Guildmaster

What Homeowners Mention Most

Recurring themes counted across every written review, Google and GuildQuality

  • 157 Would recommend us
  • 143 On time & fast
  • 126 Highly professional
  • 102 Great communication
  • 96 Praise the quality
  • 82 Spotless clean-up

In Their Own Words

Verbatim reviews from roof replacement customers

  • “A great company to choose for new roof! So satisfied with the entire process. Excellent communication back and forth with the contractor. Job done in one day. Cleanup was so thorough. Can’t recommend them enough.”

    Carolyn Provagna One-Day Install · G o o g l e Verified
  • “Contracted with this company for a complete roof tear off and install ; the results are amazing! Professionally and conscientiously completed with a 10 man crew in 1 day. I am delighted!”

    Mary Ann Scholl Full Tear-Off · G o o g l e Verified
  • “180 Contractors supplied me with three options for reroofing my house. The representative was very thorough in explaining the strengths and drawbacks of each option. It made my choice in deciding much easier.”

    John O. Options Explained · GuildQuality Verified
  • “These guys did a great job replacing my roof. Ken was very helpful in explaining the options and roof replacement process. Mark and his crew were great on the day of the install. Overall, very professional and great service.”

    Blong Xiong Process Explained · G o o g l e Verified
  • “180 Contractors did an excellent and thorough job with the installation of my new roof. I was very satisfied with the completed project. The total cost was fairly reasonable and much lower than other roofing contractors that I looked at.”

    Elizabeth E. Fair Pricing · GuildQuality Verified
  • “Everyone was polite and efficient. They did the house and garage, tear off, repair where needed and shingle in just 5 hours. They covered my hen house, many plants and water features. Not a thing broken and clean up was fantastic.”

    carmen mallory House + Garage · G o o g l e Verified
Our Replacement Process

Every Roof Replacement Starts With a Full Inspection

We never quote a roof off a phone call or a satellite photo. Every replacement starts with a free inspection of the roof and the attic, because what is happening under the shingles decides the whole job. From there we follow the same three steps every time.

First We Inspect and Evaluate

A project advisor walks the roof and the attic, checks the decking, the ventilation, and the flashing, and photographs what they find. You see the curling shingles, the soft plywood, or the rusted flashing in a picture, not just a description. That evaluation tells us the true condition, which is the only honest basis for a price and a plan.

“The sales rep was the only one who actually took the time to look in my attic. They also replaced a significant amount of plywood and documented the entire process with 179 photos. Roof looked great.”

Angi Review

Then We Tell You If It Is Really Time

Not every tired-looking roof needs replacing, and we will say so. But when the whole roof is aging out at once, a replacement is the honest call. These are the signs we look for.

  • Age of 20 years or more. Asphalt shingles last 20 to 30 years, and past that window, repairs are patches on a system failing everywhere.

  • Widespread curling, cupping, or missing shingles across multiple slopes, not one bad spot.

  • Granules filling the gutters, the protective layer washing away, which speeds up once it starts.

  • Repeated leaks after prior repairs, a sign the underlayment and flashing are spent.

  • A sagging deck or daylight in the attic, which points to structural damage a repair cannot fix.

  • Shingles that snap when lifted, the roofer's test for a brittle, non-repairable roof.

Then We Recommend a Full Tear-Off, Not a Shortcut

This is the most important decision in a replacement, and it is where honest roofers and corner-cutters part ways. We almost always tear off to the decking rather than lay new shingles over the old.

  • Full Tear-Off

    • Lifespan

      20 to 30 years

    • Decking inspection

      Full view, rot gets fixed

    • Manufacturer warranty

      Full coverage

    • Michigan code

      Always allowed

  • Layover (Overlay)

    • Lifespan

      About 16 years, up to 20% shorter

    • Decking inspection

      Hidden, problems stay buried

    • Manufacturer warranty

      Often voided or limited

    • Michigan code

      Banned once two layers exist

A layover saves a few thousand up front, but the trapped bottom layer holds heat that shortens the new roof's life, it hides the rotted decking that caused your leaks, and it voids most manufacturer warranties. Michigan law also caps roofs at two layers, so if your home already has two, a tear-off is required, not optional.

When we open a roof and find rot, we photograph the board and replace it before the new roof goes down.

180 Contractors project advisor inspecting a roof and attic before quoting a replacement
180 Contractors crew installing a new roof after a full tear-off
Honest Pricing

What Roof Replacement Costs, and Why Cheap Is a Warning Sign

A roof is priced by the square, which is 100 square feet of roof area, and a typical home is 20 to 30 squares. Here is where real pricing lands across the market, from the cheap side to the high side.

Roof replacement cost by level
Level Per Square Per Sq. Ft. 20-Square Roof 30-Square Roof
Cheap Side $450 to $650 $4.50 to $6.50 $9,000 to $13,000 $13,500 to $19,500
Middle / Normal Most Common $650 to $900 $6.50 to $9.00 $13,000 to $18,000 $19,500 to $27,000
High Side $900 to $1,300+ $9.00 to $13.00+ $18,000 to $26,000+ $27,000 to $39,000+
  • Basic Asphalt

    $9,000 to $15,000

  • Most Common

    $15,000 to $30,000

  • Larger / Premium

    $30,000+

The Cheap Side Is Cheap for a Reason

Now the part other roofers will not say out loud. That is where you find the overlay instead of a tear-off, the skipped ice and water shield, the unlicensed crew with no permit, and the decking that never gets replaced because nobody looked.

Those shortcuts are exactly what fail in a Michigan winter. A roof that comes in thousands under everyone else is not a bargain, it is a bill you pay again in a few years.

180 prices in the middle to high range because we tear off, inspect and replace decking, install the ice barrier the code requires, and register a real warranty. That is what the number buys.

“The price was fair for the attention to detail that we received. No pressure sales, no ‘if you sign today I’ll lower the price.’ They gave me their best price and let me make my decision.”

Angi Review

We also offer financing, including no-interest options for qualified homeowners , because a roof rarely fails at a convenient time. We walk you through it in the same visit as the estimate.

The Full System

What Goes Into Your New Roof System

A roof is not shingles, it is a system of layers, and a replacement is your one chance to build every layer right. The shingles are what you see. The layers underneath decide whether the roof leaks in year three or holds for thirty years.

The Decking and Ice Barrier

The decking is the plywood base your entire roof is nailed to, and Michigan winters punish it from below when attic heat melts snow unevenly. We inspect every sheet during tear-off and replace what is soft or rotted, because new shingles over bad decking fail fast.

Over the decking, we install ice and water shield, a self-sealing membrane Michigan code requires at the eaves, extending at least 24 inches inside the interior wall line.

It is the single most important defense against ice dams, the recurring January leak that soaks so many ceilings.

Underlayment, Flashing, and Ventilation

Synthetic underlayment goes down as a second water barrier across the whole roof. Flashing, the metal that seals every chimney, wall, and valley, gets replaced rather than reused , because old flashing is the most common leak point on a roof.

Attic ventilation is the piece most homeowners never think about and the one that decides how long a roof lasts. Poor ventilation bakes shingles from below and drives the ice dams that ruin roofs here, so we balance ridge and soffit ventilation as part of the job.

The Shingles: Owens Corning, GAF, and CertainTeed

We install the three best-selling architectural shingles in America, each rated to 130 mph wind, Class A fire, and a lifetime limited warranty for the original homeowner.

Architectural shingle comparison
Shingle Signature Technology Algae Warranty Best Fit For
GAF Timberline HDZ LayerLock nailing zone 25-year StainGuard Plus Strongest algae coverage, most colors
Owens Corning Duration SureNail fabric strip 10-year StreakGuard Most forgiving high-wind install
CertainTeed Landmark Dual-layer dimensional build 10-year StreakFighter Richest cedar-shake look

Why Architectural Shingles Over 3-Tab

Architectural shingles are thicker, dimensional, and rated for higher wind, which matters where gusts regularly top 60 mph. They carry the lifetime warranties that flat 3-tab shingles cannot, making them the standard for a replacement meant to last decades.

The Algae Warranty Detail for Lake-Adjacent Homes

Those black streaks near the Great Lakes come from airborne algae, and GAF's 25-year StainGuard Plus is two and a half times the standard 10-year coverage. On a shaded or north-facing roof, that gap is worth asking about before you pick a brand.

New architectural shingle roof system installed by 180 Contractors
Timeline

How Long Does a Roof Replacement Take?

Most roof replacements are completed in a single day, often between 8am and mid-afternoon for a standard-size home. That is faster than the two to four days a tear-off takes many contractors, and it comes down to crew size and coordination.

One Day, Most Homes

Typically 8am to mid-afternoon on a standard-size roof

A Typical One-Day Replacement

What actually happens between the truck arriving and the last magnet sweep

  • 8am

    Setup & Protection

    Crew arrives, landscaping and windows get covered, dumpster is positioned.

  • Morning

    Full Tear-Off

    Old shingles come off to the bare decking, and every sheet gets inspected.

  • Midday

    System Install

    Ice barrier, underlayment, flashing, then shingles and ridge ventilation.

  • Mid-Afternoon

    Cleanup & Walkthrough

    Magnet sweep for nails, site cleared, and a final walkthrough with you.

What Can Add a Second Day

We tell you which of these apply before we start, not partway through

  • Complex rooflines. Larger, steeper roofs with multiple valleys, dormers, or skylights.

  • Heavy decking replacement. Widespread rot found once the old roof is off.

  • Michigan weather. Roofing runs best spring through fall, so winter work can shift.

You get a clear timeline before we start, not a vague window.

“They started at 8am, finished by 3pm. A complete pickup, tear-off and new roof. Everybody knew exactly what they were doing.”

180 Contractors Customer
Roof showing common failure points 180 Contractors repairs
Why Roofs Retire Early

Common Reasons Roofs Fail Early Near You

Our winters and older housing stock retire roofs faster than most of the country. Knowing why is what lets us build the replacement to outlast the last one.

  • Ice Dams

    Heat escaping into the attic melts snow unevenly, it refreezes at the eaves, and water backs up under the shingles. The fix is ice barrier plus proper ventilation, not just new shingles.

  • Freeze-Thaw Cycles

    Water works into every seam, freezes, expands, and pries flashing and shingles loose over 30 to 45 inches of annual snow.

  • Poor Original Ventilation

    Older homes were rarely vented to modern standards, which cooks shingles from below and shortens their life.

  • Wind and Hail

    Gusts over 60 mph and summer hail lift and bruise shingles, often across a single slope.

  • Deferred Decking Rot

    Small leaks left alone soak the plywood, so a replacement here is often a decking job too, which is why we inspect every sheet.

Two Shops, One Phone Call

We Replace Roofs From Both of Our Locations

We run replacements out of two shops, so a crew is always close to your home. Both are open for scheduling around the clock.

  • Roof Replacements From Our Waterford Shop

    Service Area

    • Waterford
    • Drayton Plains
    • Keego Harbor
    • Pontiac
    • Auburn Hills
    • Clarkston
    • Davisburg
    • Holly
    • White Lake
    • Lake Orion
    • Rochester
    • Rochester Hills
    • Sterling Heights
    • Bloomfield Hills
    • Birmingham
    • Troy
    • Royal Oak
  • Roof Replacements From Our Commerce Township Shop

    Service Area

    • Commerce Township
    • Walled Lake
    • Union Lake
    • West Bloomfield
    • Milford
    • Highland
    • Hartland
    • Howell
    • Brighton
    • New Hudson
    • South Lyon
    • Northville
    • Novi
    • Farmington
    • Farmington Hills

“180 Contractors did an outstanding job replacing my roof and replacing the siding on my house.”

Verified GuildQuality Review · Oxford, MI

Ready for a New Roof?

Whichever shop is closer, the crew is dispatched from here, not driven in from out of state after a storm.

Straight Answers

Frequently Asked Questions About Roof Replacement

How much does a roof replacement cost?

A basic asphalt replacement runs $9,000 to $15,000 , the most common professional replacement runs $15,000 to $30,000 , and a larger or premium system runs $30,000 and up . Priced by the square, that is roughly $450 to $1,300 per square depending on materials, roof size, pitch, and decking condition. If a bid comes in well under the market, treat it as a warning sign of cut corners, not a deal.

Why is the cheapest roof quote usually a bad idea?

A price thousands below everyone else usually reflects an overlay instead of a tear-off, a skipped ice and water shield, an unlicensed crew with no permit, or decking that never gets replaced. Those shortcuts are exactly what fail in a Michigan winter , so you end up paying again in a few years. Doing the full system right costs what it costs, and that is what makes a roof last.

Should I replace my roof or just repair it?

Repair when the fix is under about 30 percent of a replacement and the roof has real life left. Replace when the roof is past 20 years old , damage covers more than 25 percent of the surface, shingles snap when lifted, or you have had repeated leaks after prior repairs. A replacement resets the clock with a new 20 to 30 year system and a fresh warranty. We give you the honest call after inspecting.

Can you install a new roof over my old shingles?

We almost always tear off instead. A layover traps heat that cuts your new roof’s life by up to 20 percent , hides the rotted decking that causes leaks, and voids most manufacturer warranties. Michigan code also caps roofs at two layers , so if your home already has two, a tear-off is legally required. The upfront savings rarely beat the cost of replacing it years sooner.

How long does a roof replacement take?

Most roofs finish in a single day , often between 8am and mid-afternoon, which is faster than the two to four days many contractors take. Larger, steeper, or more complex roofs can run into a second day, and heavy decking replacement adds time. We schedule around Michigan weather and give you a clear timeline before we start.

Do I need a permit to replace my roof?

Yes. Municipalities require a permit for full replacements and tear-offs, and unpermitted work can complicate insurance claims and home sales . We pull the permit and schedule inspections as part of your project, and most local permits process within a few business days. Michigan code also requires ice and water shield at the eaves and caps reroofing at two layers.

Can I stay home during a roof replacement?

Yes. You can stay home, though the work is loud and it is smart to move vehicles out of the driveway and cover attic-stored items from dust. Most jobs finish in a single day, so the disruption is short. We sweep the whole property with magnets for nails during cleanup and do a final walkthrough with you before we leave.

What warranty comes with a new roof from 180 Contractors?

Every roof carries a manufacturer material warranty plus our own written workmanship warranty . As a certified Owens Corning, GAF, and CertainTeed installer, we register the manufacturer’s system warranty, which requires the shingles, starter, underlayment, and ridge cap all match and install to spec. A full tear-off is what makes that coverage possible, since overlays void most warranties, and coverage is transferable when you sell .

Ready for a Roof That Lasts Thirty Years? Call Now.

Your roof does not get cheaper by waiting, and an aging roof turns one bad storm into decking rot, mold, and interior damage. 180 Contractors will inspect your roof and attic, show you the photos, and give you an honest, no-pressure estimate, whether that means a full replacement, a repair, or nothing at all.

  • 5.0 Stars
  • Licensed Crews
  • Documented Tear-Off to Cleanup

“SUPERIOR COMPANY. 180 Contractors replaced and repaired the roof on my house from scheduling and inspection to completion. Everyone involved was awesome, courteous and very responsive. No delays and very patient with all my questions.”

Birdeye Review