Every summer, contractors price roof jobs based on tiles counted from the ground or a screenshot from Google Maps. It works — until it doesn’t. One of our customers recently discovered he had quoted a job 20 percent too low. There’s an easier way.

The old way: count tiles and hope for the best

Most people working with roofs have done it the same way for years. You drive out to the address, stand back, and count tiles from the ground. Or you zoom in on Google Maps and try to estimate the area from there. Both methods give you an approximate number — and approximate is rarely good enough.

The error doesn’t have to be dramatic to cost you. One of our customers discovered that he had recently quoted a roof job 20 percent too low because he had used the old method. It was only when he looked up the same address in Wenn Property that he saw the actual area — and realised he had lost money on the job. Mistakes like this happen more often than you’d think, and in a trade with thin margins, 20 percent is the difference between a good job and one you regret.

How it works: look up the address, get the measurements

With Wenn Property’s outdoor feature you just enter the address — and you’re up and running. The tool pulls roof surfaces, areas, and exterior measurements automatically from public registries. No ladder, no drone, no manual counting. You get accurate numbers in seconds, straight in the browser.

It works on any device, including Android. You don’t need any special hardware or app — just a browser and an address. And that means you can price a job without leaving the office. You have the facade measurements ready before you’ve even decided whether to drive out and look at the project in person.

From address lookup to finished quote

Once you have the roof surfaces in place you can export the data straight to Excel for estimating. Combine that with the built-in AI assistant and you can dictate observations as you go and get a structured inspection report generated automatically. The report can be shared with the client via a simple link with a PIN code — the recipient doesn’t need to download an app or create an account.

The result is that you go from enquiry to finished quote in a fraction of the time. Users report saving more than 30 percent of time per inspection. In a busy summer season that means more quotes out the door, fewer mispriced jobs, and clients who get a quick response.

Do you still need to drive out?

Sometimes, yes — you might want to see the condition of the roof with your own eyes, or take photos for documentation. But you don’t need to drive out to get the measurements. With address lookup you have what you need to price the job before you even start the car. That means you can give the client an estimate the same day, and do a physical inspection when it suits you — not because you need the numbers.

Try it yourself — it takes under a minute

Go to wennproperty.no and sign up for a free trial. Look up an address you know well — maybe a job you’ve recently quoted — and compare with the numbers you used. You might be surprised.

Wenn Property — from inspection to estimate, in half the time.