You got two quotes for a metal roof. Maybe three. And somehow one contractor came in $10,000 higher than the other — for the same house, the same square footage, the same “metal roof.”
That gap freaks people out. It shows up on every homeowner focused Facebook group out there, usually with someone asking if they’re getting scammed. They’re probably not getting scammed, they’re probably just not getting estimates that are comparable to each other. Metal roofing isn’t one product. It’s a stack of decisions, and most of those decisions have an impact on the price.
Gauge: the thickness nobody explains well
Steel gauge is the first place quotes split. Lower gauge number means thicker steel. A 24-gauge panel costs more than 26-gauge. A 26-gauge costs more than a 29-gauge and then there are specific levels of gauges even. Is your 29-gauge on the thicker end of the spectrum or the thinner? All of this impact the per lineal foot pricing of the materials. Thicker steel resists denting better, holds screws tighter, and generally lasts longer under hail. Thinner gauge isn’t a scam — it’s a legitimate lower-cost option for the right project. But if one quote spec’d 24-gauge and the other spec’d 26-gauge, you’re not comparing the same roof. You’re comparing two different products that are both metal.
Coating: the part that determines whether your roof still looks good in 2050
This is the one topic that can get very technical and that people often skip past fastest — but it’s also the one topic that will have the biggest impact in how your investment looks long term. A basic painted panel and a premium SMP coil-coated panel can look nearly identical the day they’re installed. Fifteen years later, they won’t.
At Indiana Metal, we run Sherwin-Williams WeatherXL SMP coil coating, which carries a 40-year warranty against peeling, cracking, and flaking, plus a 30-year warranty against fading and chalking. Cheaper coatings exist. They’re not wrong for every budget. They just fade faster, chalk sooner, and won’t carry the same warranty paper — which is exactly why two “identical” quotes can land $8,000 apart.
Panel profile and fastening system
Standing seam with concealed fasteners costs more to install, and more to purchase, than an exposed-fastener panel. There’s more labor in it, more precision required, it’s typically a thicker steel and is an upgraded panel. Exposed fastener systems are a completely legitimate choice for a lot of homes and budgets — they’re just a different system with a different price point and a different maintenance timeline, since exposed screws need occasional re-tightening or replacement over the years.
If one quote is standing seam and the other is exposed fastener, that alone can explain a huge chunk of your price gap. Neither contractor is wrong. They just quoted different roofs.
Install complexity — the stuff that’s hard to see from the driveway
Two roofs can look the same size on paper and be nowhere close in labor hours. A steep pitch takes longer and needs more safety equipment. A roof with a lot of valleys, dormers, or penetrations needs more trim and more time getting each cut right.
Decking condition matters too. If your current deck is soft, rotted, or just not rated for the new system, that’s an added cost — and a contractor who caught it during the estimate is doing you a favor, even though the number on the page looks worse.
What to actually ask when quotes don’t match
Don’t just look at the bottom-line number. Put both quotes side by side and check these:
- Steel gauge
- Coating type and warranty length (ask specifically about fade/chalk and peel/crack coverage)
- Panel profile — standing seam vs. exposed fastener
- Whether tear-off and deck repair are included or billed separately
- Labor warranty length, separate from material warranty
A $10,000 gap usually isn’t one contractor gouging you and the other being generous. It’s two different specs wearing the same name. Once you line the details up side by side, the price difference almost always makes sense.
Where the steel comes from matters too
Every contractor is only as good as the material they’re installing. Ask who supplies their steel and what gauge and coating system they run. If you’re in central Indiana, ask if they work with Indiana Metal — we supply contractors across Indianapolis, Crawfordsville, Lafayette, Terre Haute, and the surrounding counties with Indiana-made steel roofing and siding, and we’re happy to explain the spec on any quote you’re comparing.
Jena Jackson, Marketing Indiana Metal Inc
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