1. Quote Request QR
A QR on a tradesperson's van, leaflet, and business card links to the quote request form: job type, property type, description, preferred timing, and photos. Structured quotes via QR arrive with the information needed to price — reducing back-and-forth phone calls.
2. Job Sheet and Completion Certificate QR
A QR on the completion certificate or invoice links to the digital job record: photos of work completed, parts used, test certificates, and warranty information. The customer has permanent digital access to their compliance documentation.
3. Building Regulation Compliance QR
For notifiable work (gas, electrical, structural), a QR on the compliance certificate links to the Building Regulations completion certificate or Part P/Gas Safe registration record. Estate agents and solicitors increasingly require digital access to compliance records during property transactions.
4. Guarantee Certificate QR
A QR on the workmanship guarantee certificate links to the live guarantee record: duration, what is covered, how to claim, and the tradesperson's current contact details. Guarantees that are valid years after the job was done are only useful if the tradesperson can still be contacted — a dynamic QR can update the contact details if the business changes.
5. Review Generation QR
A QR on the invoice, completion certificate, and van links to the Google Business or Checkatrade review page. Tradespeople who ask for reviews via QR at the moment of job completion (highest satisfaction point) consistently outperform those who ask via email follow-up.
Putting this into practice
Start with the smallest real test you can run. Generate the code, print it at the exact size you plan to use, and scan it with two different phones in the lighting where it will live. Check that the destination page loads quickly on a mobile connection and that the call to action next to the code tells people what they will get. If anything feels slow or unclear, fix it before you print a full batch, because reprints cost more than a short test. Keep a note of the size, material, and placement that worked so the next batch starts from a proven setup.
Common mistakes to avoid
The most common mistakes are easy to avoid once you know them. Long payloads make modules tiny, low contrast makes edges hard to read, and text placed too close to the border eats the quiet zone the scanner needs. Covering a corner finder pattern with a logo or a sticker breaks detection entirely, and a code placed behind glare or on a curved surface fails even when the print is perfect. Review each of these points on a proof copy, and treat any failure as a reason to adjust the design rather than a reason to blame the scanner.
Quick checklist
- Keep the payload as short as practical so modules stay large.
- Keep dark modules on a light background with strong contrast.
- Leave a clear quiet zone on all four sides of the symbol.
- Test the printed code at the real viewing distance and lighting.
- Confirm the destination page loads fast on a phone.
- Recheck the code after any change to the link, design, or placement.
Related tools and guides
- For local payments, the [Pakistan payment QR](/pakistan-payment-qr) page explains the regional flow and what customers see.
- The [regional payment QR](/regional-payment-qr) guide covers payment codes used across different markets.
- The [bulk generator](/bulk-generator) builds many codes from a table when one-off generation would take too long.
- Test every code with the [QR scanner](/qr-scanner) on more than one phone before you publish or print it.
- The [UTM builder](/utm-builder) adds campaign parameters so scans show up separately in your analytics.
- The [blog](/blog) collects more guides on sizing, printing, security, and payments for QR codes.
