24/7 Emergency Call-Out
When something fails, you need help fast – from people who understand the systems you’re relying on.
Our engineers are on call day and night, supporting residential buildings across London and the South East with rapid response and clear communication.
Get help, fast
A 24/7/365 emergency breakdown service.
If you ever need us, we aim to have a fully qualified engineer on site within two hours across most central London locations.
DID YOU KNOW?
In October 2025, our call-out time was 102 minutes from time of call to attendance on site.
Minutes
Emergency Call-Out: What To Expect
Emergencies don’t wait for office hours. When you call, you’ll speak to a team who know what questions to ask and what to do next.
You can expect:
-
A fast assessment and clear next steps
-
Engineers who often already know your building and its systems
-
Well-stocked vans for common parts and fixes
-
On-Call Manager support if authorisation or extra resources are needed
THE PROCESS
What Happens When You Call
1.
We take the key details + confirm urgency
2.
We dispatch support and keep you updated
3.
We fix the issue where possible on the first visit, or agree a clear plan if more work is needed
Systems We Support
We support the building systems residents rely on every day, including:
What we cover:
- Boilers & plant
- Heat Interface Units (HIUs)
- Air source heat pumps & new technologies
- Pumps, valves & pressurisation units
- Heat metering – upgrades & replacement
- Cylinders & plate heat exchangers
- BMS & controls
- Water treatment & dosing equipment
- Pipework, distribution & plant room assets
What Our Clients Say
“The swift response of the duty manager allowed us to take control of what was potentially a catastrophic situation for the building as a whole. This may have resulted in a total service failure for the entire weekend for all residents which would have proved inconvenient to all.
A truly reliable 24/7/365 service is rare to find these days whilst many companies do claim to offer it in practice things are often quite different. DMG Delta do offer this service and I can vouch for it being exactly what is claimed which is a reliable 24/7/365 service.”
Karim – May 2025
CASE STUDIES
See how we support buildings like yours
Restoring Reliable Heating Circulation
Croydon
Delivering the Impossible
Maida Vale, London
Swift Crisis Response and Sustainable Heating Solution
Kingston Riverside, Kingston upon Thames
Need urgent support?
Call 01279 810100 and we’ll help you take the next step quickly.
WHAT WE DO
Other Expert Services
Heating & Hot Water Systems
Keep your essential systems working safely and efficiently - reducing downtime and resident complaints.
Heat Network & Energy Centres
Experts in communal and district heat networks, we help you stay compliant, efficient and ready for Ofgem 2026.
Planned Maintenance
Prevent costly breakdowns - with regular servicing of equipment in line with manufacturer, statutory and good practice requirements.
Total Heat & Energy Solutions
In partnership with Data Energy, we provide a complete solution - from maintenance and metering to billing and energy management.
FAQs
What is your emergency response time?
Our average response time for emergency breakdowns is under 2 hours in central London and 4 hours in the South East.
Do you operate 24/7?
Yes – we offer round-the-clock emergency support every day of the year for PPM contracted clients.
What buildings do you work with?
Residential blocks, commercial buildings and retail sites.
What areas do you cover?
London, Greater London and the South East.
What systems do you maintain?
Heating, hot water, heat networks, energy centres, pump sets, HIUs, cylinders, BMS, controls and plant room equipment.
Some of our trusted clients
