Introducing Exterior Scout: Preliminary Takeoffs for Exterior Contractors

We launched Exterior Scout to give roofing, fencing, and decking contractors a faster way to decide which properties deserve a site visit, a detailed report, or a proposal.

Exterior contractors make an expensive decision long before a job is won: which leads are worth pursuing? A street address may be enough to start a conversation, but it says very little about the likely size of the roof, fence, or deck involved.

The conventional next steps—sending someone onsite or ordering a detailed measurement report—make sense for a qualified opportunity. They make less sense for every door on a canvassed block, every name on a purchased list, or every early inbound enquiry.

That gap is why we built Exterior Scout: a focused web app for creating preliminary exterior takeoffs from aerial imagery.

The missing step between an address and a site visit

Lead qualification is not final estimating. At that stage, a contractor usually needs directional information: the rough scale of the project, enough visual context to support a first conversation, and a reason to prioritize one opportunity over another.

Exterior Scout sits deliberately at that point in the sales process. It lets a contractor search for a supported property, trace the exterior project, and produce an immediate preliminary takeoff. The result helps answer a practical question: is this lead worth the next investment of time and money?

Exterior Scout is a prospecting and qualification tool—not a certified report, legal survey, or substitute for field verification.

One workflow for three exterior trades

The first launch supports roofing, fencing, and decking. Each trade starts with the same address and aerial view, then uses a measurement flow designed for the shape of that work.

Roof measurements

Trace the visible roof outline, enter a uniform pitch, and review preliminary area, roofing squares, and waste allowance. The output is useful for early screening while making the limitations of straight-down aerial imagery explicit.

Fence measurements

Select the relevant edges from the property boundary and calculate the preliminary total fence length. This makes it easier to review a neighbourhood, qualify an enquiry, or prepare for a more detailed onsite conversation.

Deck measurements

Trace a visible deck outline to estimate its area and perimeter. As with the other modes, the result is a starting point for qualification—not a construction measurement.

Turning public map data into a contractor workflow

Exterior Scout currently supports Surrey, British Columbia, using the City of Surrey’s public parcel and aerial imagery data. But access to map data was only the beginning. The real product work was turning it into a workflow that feels natural to a contractor who is trying to make a sales decision.

The experience is intentionally short:

1. Search for a supported street address.
2. Choose roofing, fencing, or decking.
3. Trace the relevant outline or property edges.
4. Review the preliminary measurements.
5. Download a shareable PNG.

The generated image brings the useful context together: aerial imagery, traced edges, dimensions, a north arrow and scale bar, the matched address, imagery attribution, generation date, and trade-specific statistics. Pro users can also add their business name and logo.

Clear limitations are part of good product design

Aerial measurement products can create false confidence if they do not explain what the imagery cannot show. Roof pitch, overhangs, elevation changes, obstructions, and current site conditions all affect a real project.

We did not want that reality buried in terms and conditions. Exterior Scout describes every measurement as preliminary, places field-verification guidance inside the product, and includes the disclaimer in the exported image. The boundary is a feature: users should know exactly where the tool fits in their process.

Built to be tried before it becomes a habit

The free plan includes five property measurements every month with no credit card required. That is enough for a contractor to use the complete product on real opportunities and decide whether it belongs in their workflow.

The Pro plan is designed for active prospecting, with unlimited preliminary measurements, saved generation history, and custom branding. It turns a useful one-off tool into a repeatable part of how a team screens and pursues work.

Launching focused, then expanding with evidence

We chose a defined first coverage area instead of pretending every municipality offers the same data. Surrey provides a strong starting point for proving the workflow with real contractors and real properties. Additional municipalities can be evaluated as suitable public GIS data becomes available.

That is also how we like to build software: start with a specific user, a repeated decision, and a narrow job that the product can do well. Exterior Scout does not try to replace the entire estimating process. It makes one overlooked step much faster.

Try Exterior Scout

If you work in roofing, fencing, or decking in Surrey, you can create five preliminary property measurements each month for free. No credit card is required.

Start measuring free

You can also read the Exterior Scout case study to see how we framed and built the product.