All case studies

03Case study

Overhead

A roof, lawn or fence priced from the satellite in under a minute.

Roofers, lawn crews, fence builders and paving companies lose leads to the wait for a quote. Overhead is our own instant estimate tool they can put on their website. The homeowner types an address, traces the roof, lawn, fence line or driveway on real satellite imagery, and gets a price range worked out the way the contractor prices it. The demo runs on a branch library in Tampa so anyone can try it without entering their own address.

Kind
Instant estimate tool
For
Roofing, lawn care, fencing, paving
Built with
JavaScript, Leaflet, Esri imagery, OpenStreetMap
sites.bxzex.com/overhead
Overhead on a laptop
The sample roof traced from its building footprint, with every edge measured and the estimate beside it
Overhead on a phone
On a phone the map sits on top and the steps follow underneath

01Why we built it

A homeowner who wants a roof price usually fills in a form and waits for someone to call back and book a visit. Many never answer that call. The contractor who gives a number first tends to get the job.

Most of the number comes from one measurement: how big the roof, lawn or fence line is. That can be read off satellite imagery, so we built a tool that lets the homeowner do it in a minute and see a real range straight away.

02The hard parts

Measuring that holds up

Areas and lengths are worked out on the ground in feet, not in screen pixels, so a roof measures the same at any zoom. Each edge shows its length as you trace, and the corners can be dragged after the shape is closed.

The roof outline, found for you

For roofs, the tool looks up the building's footprint in OpenStreetMap and loads it as a starting outline. The homeowner only drags corners out to the eaves.

Priced the way a roofer prices

The traced footprint is turned into roof surface by pitch, a waste allowance is added for hips and valleys, and the result is counted in squares at the contractor's rate, with a tear off charge and a minimum job.

Four trades, one tool

Lawn crews trace grass and cut out beds and pools. Fence builders trace a line and add gates. Paving companies trace the driveway and add crack fill. Each trade has its own options and rates.

A lead with the measurements in it

The estimate goes to the office with the address, the measurements and the range, so the person who calls back already knows the job.

03How it is built

Mapping

Leaflet draws the map over Esri World Imagery. Addresses are looked up with OpenStreetMap's Nominatim, and roof outlines come from OpenStreetMap through the Overpass API.

One page

It is a single page with no build step, so it can sit on a contractor's own site or open from a link in an ad.

★The result

A priced estimate before the homeowner closes the tab.

The demo is live and works on any address in the US. Trace a roof, a lawn, a fence or a driveway and the price updates as you go.

For a contractor, the rates, options, minimums and brand are theirs, and the leads go to their phone and inbox.

Want instant quotes on your site?

We can set Overhead up with your rates and your brand, so people can price their job on your website before they call anyone else. The first call is 15 minutes and costs nothing.