Is an Online Roof Estimate Accurate in Scottsdale?

"Remember, this is only a ballpark price," the video says. "Once we come out, see, and evaluate the roof, we can provide you an accurate pricing."

That's the message that plays after someone uses our online estimating tool, and I stand behind every word of it. Online estimates are useful. They give you a starting point in a couple of minutes without anyone coming to your house. But they're built on what a computer can see from above, and most of what decides the real price of a roof can't be seen from above.

I'm Mikel Wallesen, owner of Big Red Roofing. I took this business over from my father, and we've been Scottsdale roofers since 1987. Here's what an online roof estimate is good for, what it misses, and what you should expect from the inspection that turns a ballpark into a real number.

How accurate is an online roof estimate?

An online roof estimate is a ballpark, and that's all it should claim to be. As our own tool says, "this is only a ballpark price." The accurate number comes after someone gets on the roof.

Most online tools work from the size and shape of the roof, the type of material you pick and some average costs. That gets you into the right neighborhood for a typical roof. It's a good way to find out whether you're thinking about the right scale of project before you call anyone. It's also a fair way to compare what different roof types tend to run, which is why we put an estimator on our site.

Where people get burned is treating the ballpark as a quote. They plan a budget around it, then feel misled when the real number comes in different. The tool didn't lie. It just couldn't see the roof deck, the underlayment, the flashing or the condition of what's already up there. If a company hands you a firm price without anyone ever looking at your roof, be careful. Either that price has a lot of padding in it, or there will be change orders later.

What can't an online estimate see on your roof?

It can't see anything under the surface: the underlayment, the deck, the flashing around walls and chimneys, or damage that only shows when tile is lifted. Those are the things that change the price the most.

On a tile roof, the tile you see from a satellite photo might be perfect, while the underlayment under it is dried out and cracking. That's one of the most common things we find in Scottsdale. On older roofs, we also find soft or rotted decking that has to be replaced before anything new goes on. None of that shows up from the air, and all of it affects the job.

There's also the stuff around the roof. How easy is it to get materials up there? Is there room for a dumpster like the one on this DC Ranch job? Are there lots of valleys, chimneys and transitions, or is it a simple shape? Is there a flat section that needs a different system, like spray foam? A computer can guess at some of that. A person standing on the roof knows.

Why can two roofs the same size cost very different amounts?

Because size is only one part of the price. Material, complexity, condition and access all move the number, and two roofs with the same square footage can be very different jobs.

Picture two homes with the same roof area. One is a simple shape with a couple of slopes. The other has turrets, hips, valleys and walls running into the roof everywhere, like a lot of the estate homes we work on. The second one takes far more time, more flashing work and more careful tile cutting. Same size, completely different job.

Condition is the other big one. A roof where the tile can come off and go back on over new underlayment is a different project than one where the tile is broken or impossible to match. That's why I'd rather spend time on your roof than guess. If you want to understand how a tile job comes together, read what happens during a tile roof underlayment replacement, and our pricing page explains what goes into the cost of each roof type.

What does a real roof inspection include?

A real inspection means someone gets on the roof, checks the surface, looks under it where it counts, and shows you what they found. Our tool says it simply: "Once we come out, see, and evaluate the roof, we can provide you an accurate pricing."

On a tile roof, that means walking it carefully, lifting tile in a few spots and checking the underlayment and flashing. On a shingle roof, it means looking for lifted or missing shingles, granule loss, soft spots and worn flashing. On a flat or foam roof, it's the surface, the drainage and the edges. In every case we're also looking at the areas where leaks start: valleys, walls, chimneys and vents.

The other half of an inspection is showing you. We take photos of what we find, so you aren't taking our word for it. You should be able to see the problem with your own eyes before anyone asks you to pay to fix it. If a roofer can't or won't show you what's wrong, that's a red flag.

When is an online estimate enough, and when do you need someone on the roof?

An online estimate is enough to plan and compare. You need someone on the roof before you make any decision that costs real money, and right away if you have a leak or storm damage.

If you're just starting to think about a new roof in the next year or two, the online tool is a fine first step. It tells you whether you're looking at a small project or a big one, and it helps you compare options like tile, shingle and foam. Nobody needs to climb on your house for that.

But if water is coming in, you just went through a big storm, or you're about to buy or sell a home, get a real inspection. Storm damage in particular hides well. Cracked tile, lifted flashing and torn underlayment usually aren't visible from the ground. Our post on how to check a tile roof after monsoon season walks through what to look for, and why waiting can turn a small repair into a bigger one.

What should you ask before you trust any roofing quote?

Ask whether the quote came from someone who was actually on your roof, what it's based on, and what could change it. A good quote explains itself.

Ask to see the photos behind the quote. Ask what's included: tear-off, underlayment, flashing, deck repairs, cleanup and disposal. Ask what happens if they find rotted decking once the old roof comes off, and how that gets priced. A contractor who's done this for a long time will have clear answers, because these questions come up on every job.

Then compare quotes on the same scope, not just the bottom line. A low number that skips the underlayment or the flashing isn't a better deal. It's a different, smaller job. If you're comparing companies, our page on the best roofing companies in Scottsdale lays out what to look for, and you can read real customer feedback on our reviews page.

What happens when you ask Big Red Roofing for a roof estimate in Scottsdale?

You can start with a ballpark from our online tool, and when you're ready, we come out, get on the roof and give you accurate pricing based on what we actually find.

We'll check the roof, lift tile where it matters, take photos and walk you through the options for your home. If the tile can be reused, we'll tell you. If a repair makes more sense than a replacement, we'll tell you that too. Big Red Roofing is licensed under AZ ROC #276008, holds an A+ rating with the BBB, and has grown on referrals and word of mouth for more than thirty years. You can read about the company or about me, and see finished work on our projects page.

Start with the estimator for a ballpark, check the pricing page for how each roof type is priced, or go straight to the contact page to set up a visit. We work on tile roofing, shingle roofing and commercial roofing across Scottsdale, Paradise Valley, Phoenix, Fountain Hills, Carefree and Peoria.

Frequently Asked Questions About Roof Estimates in Scottsdale

How much does a new roof cost in Scottsdale?

It depends on the material, the size and shape of the roof, and its condition under the surface. Our pricing page explains how each roof type is priced, and the estimator gives you a ballpark in a couple of minutes.

Is your online estimator a quote?

No. It's a ballpark based on the roof's size and the material you choose. Accurate pricing comes after we see and evaluate the roof in person.

Why did my in-person quote come in different from the online number?

Usually because of things the tool can't see, like worn underlayment, damaged decking, a complex roof shape or tricky access. The inspection photos will show you exactly why.

How long does a roof inspection take?

Most homes take a short visit. Larger or more complex roofs, and tile roofs where we lift tile in several spots, take a bit longer.

Do I need an inspection after a monsoon or hail storm?

If your area took strong wind or hail, yes. Storm damage like cracked tile and lifted flashing is hard to see from the ground and gets worse with the next storm.

Do you give estimates on spray foam and commercial roofs?

Yes. We handle spray foam roofing and commercial roofing across the Valley, including Mesa and Tempe.

How do I get an accurate roof estimate?

Reach out through our contact page to set up a visit. We'll get on the roof, take photos and give you pricing based on what we find.