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How Can Our Locksmiths Identify a uPVC Door Mechanism From the Customer's Photos Before Going Out?

Locksmiths make wasted first visits to uPVC doors just to identify the mechanism. We build a photo request flow that gets the right pictures before booking.

Updated 3 min readBy SpiderHunts Technologies

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Quick answer — TL;DR

Non-emergency uPVC door jobs often take two visits: one to see which gearbox, multipoint mechanism or handle is fitted, and one to fit the part. We build a photo request flow that texts the customer a link showing exactly which pictures and measurements to send, groups them on the enquiry and lets your engineer order the part before the first visit.

"The handle goes floppy and the door won't lock"

That is the whole description on the enquiry. It could be a snapped gearbox, a worn handle spring, a failed cylinder cam or something else entirely, and the fix depends on which mechanism is in the door. So the engineer books a visit, takes the edge of the door apart, measures the backset and centres, notes the brand stamped on the faceplate and goes away to order the part. The customer pays a call-out for a visit that fixed nothing. The engineer loses a slot.

Sometimes the customer did send a photo. It was of the handle from a metre away, taken at night, which tells you the colour of the handle and not much else.

Customers don't know what you need to see

The information that decides the part is on the edge of the door, on the faceplate and in a few measurements. Customers do not know that. They photograph the part that looks broken. Nobody asks them for the right pictures in a way they can follow, so the photos that do arrive come in by WhatsApp, text and email, loose from any job record.

  • Enquiries arrive with a vague symptom and no photos.
  • When photos arrive, they show the wrong part of the door.
  • Photos come through personal phones and messaging apps, not the job system.
  • Measurements are not asked for, or are given in the wrong places.
  • Engineers identify parts in their heads from memory, so the knowledge is not shared.

Two visits where one would do

The first visit on a uPVC repair often exists only to gather information. It is a slot that could have been a paying job, fuel and travel on a busy day, and a customer who waits longer than they expected for a working door. Some customers decide the first call-out was money wasted and do not book the second.

There is also the counter-risk: an engineer who guesses from a bad photo, orders the wrong gearbox and ends up making three visits.

A guided photo request, attached to the enquiry

We build a short guided flow that the office sends by text or email as soon as a non-emergency uPVC enquiry arrives.

  1. The customer gets a link that opens in their phone browser, with simple illustrated steps: open the door, photograph the whole edge, then the faceplate close up, then the handle and the cylinder.
  2. Each step shows an example of a good photo, so the customer knows what you mean.
  3. For measurements, the flow asks for the few that matter, with a picture showing where to measure, and accepts "I can't" as an answer.
  4. Photos and answers attach to the enquiry in your job system, or in a simple enquiry board, rather than sitting in a messaging app.
  5. The engineer or office reviews them and chooses the likely mechanism from your parts list. If the photos are not enough, the enquiry is marked for an inspection visit instead.
  6. Where you want it, an AI image model can suggest a likely brand and type from the faceplate photo, shown only as a suggestion for the engineer to confirm.
Photo asked forWhat it tells the engineer
Whole door edgeMechanism type, number of locking points, hooks or rollers
Faceplate close upBrand stamp and model markings
Handle and cylinderHandle style, finish, cylinder type
Measurement guideBackset and centres for ordering
Frame and keepsWhether keeps need replacing too

The engineer always has the final word. If they cannot be sure, they say so and book an inspection. The point is to make the first visit the fitting visit whenever the photos allow it.

More first visits that fix the door

Parts are ordered before the booking, so the visit is the repair. The office can quote a firmer price because the part is known. Customers feel they are being dealt with properly, because the first contact is a clear set of instructions rather than "we'll need to come and have a look".

Over time the photos and the parts actually fitted build a reference library of mechanisms your area has in its doors, which helps new engineers learn faster.

Is this a regular problem for you?

  • Many uPVC repairs take one visit to identify and another to fix.
  • Customer photos arrive by WhatsApp and are hard to find later.
  • Customers are rarely asked for specific photos or measurements.
  • Engineers sometimes order the wrong mechanism from a poor photo.
  • Only your most experienced engineer can identify parts from a picture.

FAQ

Frequently asked questions

The questions readers ask us after this guide.

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Will customers bother taking the photos?

Most will if the steps are short and clear and they understand it saves them a second call-out. Those who do not can still book an inspection as now.

Can AI identify the mechanism by itself?

It can suggest from a clear faceplate photo, but it can be wrong. We build it as a suggestion that an engineer confirms, never as the decision.

Does it work with our current job software?

If your software can receive photos and notes through an API or email, we attach them there. If not, the enquiry board links to the job number.

What do you need from us?

Your parts list, examples of good photos, and the measurements your engineers actually use when ordering.

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