Power Flush Colindale

Heating systems in Colindale homes

The area around Colindale station, Aerodrome Road and the RAF Museum has been transformed by large apartment developments, while the Grahame Park estate is being regenerated. Older housing — interwar semis and terraces — remains on the roads towards Burnt Oak, Kingsbury and The Hyde.

Newer flats and houses often have compact sealed systems with combi boilers, and some developments use communal heating with heat interface units rather than individual boilers. People are often surprised that new systems can be dirty: installation debris, flux and oxides from new steel radiators can all be left behind if the system wasn’t thoroughly cleaned at commissioning. In the older houses, the issues are the familiar ones of long-term corrosion and sludge.

Common heating problems we see in Colindale

• New-build systems never cleanedRadiators slow to heat and boilers faulting early because installation debris was left in the system.
• Communal vs individual systemsUnderstanding whether a flat has its own boiler (which we can flush) or a heat interface unit on a communal network.
• Interwar homes with old sludgeTraditional sludge problems in the older streets around Colindale.

Other signs to look out for include black water when you bleed a radiator, a boiler that bangs or “kettles”, and radiators that take a long time to warm up. Our guide to signs you need a power flush covers them in more detail, and if your radiators are cold in particular, start with cold radiators: causes and fixes.

Our power flushing service in Colindale

For Colindale homeowners, landlords and tenants, our process is:

1. We check the system and test the water to confirm a flush will help.
2. The power flushing machine is connected and cleaning chemicals circulated.
3. Each radiator is flushed on its own, with flow reversal and agitation.
4. Dirty water goes to drain until the system runs clean.
5. Inhibitor is added and the system recommissioned and checked.

Read the full detail on our power flushing service page, or see what affects the cost of a power flush. If you’re about to replace your boiler, see power flushing before a new boiler.

Booking a power flush in Colindale: practical details

Many Colindale developments have secure underground parking and concierge desks, so it helps to know how contractors are expected to arrive and where equipment can be unloaded. In new-build flats, the boiler is often in a hall cupboard and the drain point may be a washing machine waste or balcony outlet — we’ll confirm the right one.

On the day, the heating and hot water will be off for most of the working day. It helps to clear space around the boiler and radiators, and to tell us about any radiators that are hard to reach.

Areas near Colindale we also cover

• Burnt Oak
• Grahame Park
• Kingsbury
• Hendon
• Edgware
• Mill Hill
• Brent Cross

See all the areas we cover across London.