Hard water and period properties: Dorking plumbing realities
Dorking sits at the foot of the North Downs, and the water that comes out of the tap here is among the hardest in Surrey. The water is chalky, mineral-rich, and over time it coats the inside of every pipe, every heat exchanger and every kettle in town with limescale. Combi boilers in Dorking properties — particularly older Worcester, Vaillant and Ideal units — lose efficiency far faster than their manufacturer estimates suggest. Plate heat exchangers fur up, divertor valves seize, and showers slow to a trickle. A boiler that's only six or seven years old in Dorking will often need its plate heat exchanger descaled or replaced — work we do weekly.
The other half of the Dorking story is the housing stock. The streets around the town centre — Westcott Road, the area around the Cockerel and the older terraces of South Street — include a lot of Victorian and Edwardian properties with original lead service pipes, undersized cold mains and gravity-fed hot water systems that have been retrofitted multiple times. We see a steady stream of pinhole leaks on the lead-to-copper joints where modern feeds have been added to the original Victorian incoming main.
Outside the centre, in Pixham, Westcott, Mickleham and the lanes climbing toward Box Hill, properties are larger, often detached, often on private drainage or septic systems, and frequently with complex multi-zone heating systems serving outbuildings, annexes and pool houses. We work on all of it.
Emergencies we handle in Dorking
If you have any of these, call us — don't wait. Damage gets worse fast.
Burst pipes
Quick isolation and repair to stop water damage fast.
Boiler breakdown
Emergency boiler repairs when you have no heat or hot water.
Major leak
Standing water or uncontrollable leaks that need stopping fast.
Blocked drain
Severely blocked drains causing backups or overflow.
Overflowing toilet
Toilets that won't stop overflowing — bathroom flooding risk.
No water supply
Sudden loss of water supply when neighbours have water.
Why Dorking calls us first
Emergency response
When it's an emergency, every minute counts. We're on call 24/7 with engineers across the area.
Quote before we start
No surprises. We'll tell you exactly what the work will cost before any tools come out.
Fully insured
Public liability cover and Gas Safe registered contractors — peace of mind on every job.
Equipped vans
Our engineers carry the parts to fix most emergencies on the first visit — no waiting.
Routine plumbing in Dorking
Bathroom fitting, boiler servicing, leak detection and more — see our full Dorking plumbing service.


