Lock Repair and Maintenance Guide

Scope of Works

• Inspect & diagnose sticking keys, loose cylinders, worn springs or mis‑aligned bolts.

• Strip, clean & lubricate internal parts; replace springs, pins, or followers if worn.

• Re‑pin or re‑key cylinders to new keys where security is compromised.

• Adjust strike plate & hinges to restore smooth latch engagement and prevent door drop.

• Tighten fixings, replace faceplates or escutcheons to stop rattles and draughts.

• Test & certify operation against BS3621 where relevant; issue maintenance report.
  

Typical Cost (inc. VAT)

Time on Site

• Typical: 30 – 90 minutes for cleaning, re‑lubrication and minor part swap.

• Up to 2 hours: seized screws, badly corroded mechanisms, or full re‑pinning.

• Half‑day: multiple locks, UPVC multi‑point gear‑box strip‑down, or smart‑lock firmware updates.
  

Questions to Ask Your Trade

1. What fault have you identified and which parts need replacing versus cleaning?

2. Is your quote a fixed price or hourly after the first call‑out period?

3. Will the lock remain BS3621‑compliant for my insurance after repairs?

4. How many new keys will you supply and can you cut matched spares on site?

5. What warranty covers the replacement parts and your workmanship?

6. Do you carry stock for my lock brand or will a return visit be needed?

7. Are you MLA‑approved and DBS‑checked for residential security work?
   

How to Avoid Surprises

• Send photos of the lock case & edge stamp so the locksmith brings correct parts.

• Clear the doorway and keep pets contained for quick access and safety.

• Reserve parking close to the entrance for tools and portable vice.

• Check for door drop or warped frames—repairs may require hinge adjustment too.

• Confirm evening/emergency surcharges before booking.

• Ask for replaced parts back to verify genuine swaps, guarding against fraud.

Price ranges are rounded 2025 GBP values and already include 20 % VAT.