Power Flushing in Baldock

Most of the heating systems we power flush in Baldock share the same backstory. The Georgian and Victorian terraces around the town centre, the listed townhouses on High Street and Hitchin Street, and the inter-war semis on the established streets all typically had central heating retrofitted decades after the buildings themselves were constructed. That means radiators which are now 40 to 60 years old, sitting on top of pipework added at various points across the second half of the 20th century, fed by boilers that have been replaced two or three times. Combine that with the very hard chalk-aquifer water, the springs that feed the River Ivel rise in the town itself, and you’ve got the cold-spot radiators, kettling boilers and steadily rising gas bills we see across SG7 every winter.

Professional dual-magnet flushing machine, inhibitor added on completion. Gas Safe registered heating engineers, our full power flushing service covers everything from initial system assessment through to post-flush water testing.

Three factors stack against the average Baldock heating system. First, the very hard water from the Affinity Water chalk supply accelerates internal corrosion of steel radiators. Second, the age and complexity of much of the town’s housing, Georgian and Victorian terraces with heating systems where radiators are original 1960s or 70s installations on pipework added at various points. Third, the larger detached properties out in the surrounding villages of Ashwell, Sandon and Newnham often have extended heating circuits with long low-velocity pipework runs where sludge accumulates faster than in compact systems.

The result is magnetite sludge, the black, magnetic iron oxide that builds up when steel radiators corrode internally. Skipping a flush before fitting a new boiler is the single fastest way to kill a new heat exchanger. Most manufacturer warranties (Worcester, Vaillant, Ideal) become void if the system isn’t properly cleaned at install.