Emergency call-outs, Mon to Sat

Something's failed. Book an engineer online.

Fixed call-out fee, paid online to confirm. The engineer diagnoses the fault in the first hour and tells you what the fix is before doing it. London and the M25, Monday to Saturday, 8am to 7:30pm.

• Book a call-out
• Call 07414 155520

Or call our London number 020 8175 5557

8am to 6pm, Mon to Fri

Standard response

£99 inc. VAT

Same-day dispatch when booked in hours, one-hour diagnostic, no hidden fees.

8am to 7:30pm, Mon to Sat

Priority emergency

£150 inc. VAT

Priority dispatch, one-hour diagnostic.

• CCTV down or not recording
• Alarm faulting or will not set
• Door entry, intercom or gate not working
• Network or AV failure in a business

Book the call-out

Choose the response you need, tell us what has failed and where, then pay the call-out fee to confirm. You get a confirmation and an ETA on the way.

What you can book a call-out for

Homes and businesses across London and inside the M25. The engineer confirms the actual fault on site in the first hour before any repair.

CCTV down or not recording

• A camera offline or showing no picture
• The recorder not recording, or its disk failing
• No live view or playback on the phone app

CCTV repair in London

Alarm faulting or will not set

• An alarm that will not set, or goes off with no cause
• A sensor, tamper or low-battery fault on the keypad
• A keypad or control panel that is dead

Burglar alarm repair in London

Door entry, intercom or gate not working

• No ring at the handset, or no picture on the monitor
• A door or gate that will not release
• Fobs or a keypad that have stopped working

Intercom and door entry repair

Network or AV failure in a business

• Wi-Fi or the wired network down
• A switch, patch panel or cabling fault
• A meeting room screen or sound system that has stopped working

Wi-Fi and data networking

How the call-out works

1. 1

   Book online, any time

   Pick standard or priority, tell us what has failed and where, and pay the call-out fee to confirm. Day or night, the booking goes straight through; engineers attend Monday to Saturday, 08:00 to 19:30.

2. 2

   We confirm the visit

   You get a confirmation and an ETA for the earliest visit within those hours.

3. 3

   The fault, found in the first hour

   The engineer tests the system, finds the fault and tells you what the fix is before doing it.

4. 4

   Repaired, or priced to replace

   If it needs parts, more time or a new system, you get a written price for either route before any further work. The job is photographed and signed off by you.

Book a call-out

What our customers say

Google reviews: Excellent, 4.7 out of 5 from 3 reviews (read them on Google).

Trustpilot: Average, TrustScore 3.7 out of 5 from 1 review (read them on Trustpilot).

• Ian, November 2026: 5 out of 5 stars, on Trustpilot (CCTV installation)

  Excellent service from AI Protech Ltd! They installed a CCTV security system at my home, and I couldn't be happier with the results. The team was highly professional, reliable and knowledgeable throughout the entire process. The installation was completed to a very high standard, and the pricing was extremely competitive. Great quality, excellent customer service and outstanding value for money. I would highly...

• Iann Cohen, November 2026: 4 out of 5 stars, on Google

  Profissional , Reliable company Recommend

• Knighthak Enquiries, November 2026: 5 out of 5 stars, on Google (Intercom repair)

  Fast , quick and reliable ,intercom system fixed the same day ,easy web-form agreed in one call ..Recommended

• Jamie Bishop, November 2025: 5 out of 5 stars, on Google (Smart heating)

  Adham was excellent and went the extra mile to get our smart heating system up and running. I'd recommend the company and him to everyone I know. He really knows his stuff and completed the work to a really high standard.

Call-out questions

Anything else, contact us or call 020 8175 5557.

How much is an emergency call-out in London?

Ai Protech's call-out is a fixed fee, paid online to confirm: £99 inc. VAT for a standard visit (Monday to Friday, 08:00 to 18:00) or £150 inc. VAT for a priority visit (Monday to Saturday, 08:00 to 19:30). Both include the first hour of diagnosis. If the fix needs parts, more time beyond the first hour or a replacement, the engineer gives you a written price before doing any further work.

Can I book an emergency call-out at night or on a Sunday?

Yes. A call-out for a CCTV, alarm, door entry or business network fault can be booked and paid for online at any time, day or night. Engineers attend Monday to Saturday, 08:00 to 19:30 (no night or Sunday visits), and we confirm the earliest visit within those hours.

What can I book a call-out for?

CCTV that is down or not recording, an alarm that is faulting or will not set, a door entry system, intercom or gate that is not working, and a network or AV failure in a business.

Which systems do you work on?

Hikvision CCTV, with accredited engineers; Paxton door entry and access control, as a platinum registered installer; and CAME BPT, as a certified installer. Other makes too, where parts are still made: tell us what is fitted when you book.

What happens in the first hour?

The engineer tests the system, finds the fault and tells you what the fix is before doing it. Anything that needs parts or more time is priced in writing first, and the finished job is photographed and signed off by you.

Which areas do you cover?

London and the M25. Enter the postcode when you book and we confirm the visit and an ETA.