FlatRoofCalculator.com is a free, independent resource that helps U.S. homeowners understand what a roof really costs — and connects them with vetted local roofers. Here’s who we are and how we work.
A new roof is one of the largest home-improvement purchases most people ever make — yet roofing prices are famously opaque. Two contractors can quote the same job thousands of dollars apart, and most homeowners have no easy way to tell what a fair number looks like. We built FlatRoofCalculator.com to close that gap.
Our free calculators turn your roof size, material and pitch into a realistic, data-backed cost range in seconds — so you walk into every contractor conversation already knowing roughly what you should pay. We started with flat roofs (the EPDM, TPO, PVC, modified-bitumen and built-up membrane systems that confuse most homeowners) and have grown into a full suite of roofing tools.
Whatever roofing decision you are facing, there is a tool for it:
Our numbers are not guesses. Each cost calculator uses research-backed U.S. pricing built from an itemized takeoff — membrane or roofing material, waste, insulation and boards, drainage, tear-off and labor — rather than a single blended rate. We then apply a local cost multiplier derived from regional labor rates and cost of living, so an estimate for a high-cost metro is genuinely different from one for a smaller town.
Because materials and labor move over time, we review and update our rates regularly. Every estimate is designed for planning and comparison — your final price depends on your specific roof, its condition, and the contractor you choose.
FlatRoofCalculator.com is completely free for homeowners, with no account required. We are supported by the roofing companies in our network: when you choose to request quotes, we match you with up to three licensed, insured local roofers, and they pay us for that introduction. You are never charged, and you are never obligated to hire anyone.
This model only works if our tools stay genuinely useful, which is exactly why our calculators are built to be accurate and unbiased — not to inflate numbers.
We are not a roofing contractor, and we do not sell roofing materials — so we have no incentive to steer you toward a particular product or a bigger job than you need. Our estimates are independent, our calculators are free, and requesting quotes is always optional. We simply give you the information and the connections to make a confident decision about your roof.
Yes — every calculator is free to use with no account required, and requesting quotes carries no cost or obligation. We are paid by roofers in our network only when we match them with a homeowner.
No. We are an independent information and lead-matching service. We do not install roofs or sell materials, which is what keeps our estimates unbiased.
They are planning-grade ranges built from itemized U.S. pricing adjusted to your local market. Your exact price depends on your roof and contractor, so always compare a few real quotes.