Wellfield MechanicalIsolation Valve Replacement
Designed for domestic properties and small commercial units with seized or leaking shut-off valves. We drain the local line, remove the old brassware, and fitWRAS-approved quarter-turn lever or screw valves. The result is a sound, dry point of isolation for future maintenance.
What is included
- ✓WRAS-approved brass isolation valves
- ✓Safe local drain-down
- ✓Compression or solder joints
- ✓Pipe re-alignment if required
- ✓System repressurisation test
- ✓Disposal of old fittings
Request a site visit or quote
We will review your details and confirm available appointment times shortly.
Questions about this service
Do I need to empty my cold water tank before you arrive?
No, we manage local isolations and drain only the affected run.
Can you replace valves in tight spaces under sinks?
Yes, we use compact ratchet cutters and short-pattern valves designed for confined pipe boxes.
What size valves do you stock on the van?
We carry standard 15mm, 22mm, and 28mm compression and push-fit valves at all times.
Why choose Wellfield Mechanical
Reliable shut-off valves fitted to your pipework.
Controlled Water Flow
Isolate appliances quickly without shutting off water to the entire property.
Corrosion Resistance
Heavy-duty brass bodies withstand mineral deposits in hard and soft water.
Immediate Access
Lever handles allow rapid closure during routine maintenance or appliance faults.
How we work
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1
Supply Inspection
We locate your internal stop tap and isolate the branch to check pipe integrity.
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2
Fitting Removal
The failed or seized valve is removed cleanly without distorting adjacent copper.
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3
Component Installation
A new quarter-turn or wheel-head isolation valve is fitted with clean brass olives.
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4
Pressure Testing
Water is restored to inspect the joint under static mains pressure.
Twelve-month workmanship standard
Every valve, fitting, and pipe joint we install is covered by our twelve-month workmanship guarantee. If a fitted joint we installed leaks or weeps within that period, we return and rectify it at no charge. Pricing & payment
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What our clients say
Prompt arrival and dry pipes.
Rhys T., Cardiff, GBNeat copper soldering under the sink.
Carys M., Cardiff, GBThe technician diagnosed our noisy thermostatic cartridge and replaced it without fuss.
Alun P., Cardiff, GBNeed a valve replaced or pipe altered?
Send a short message with your location and the issue. We will call you back within two hours with clear options.