Richmond Brass & ValveBrassware and Flow Control
Reliable Plumbing Valves and Water Controls in Richmond
We diagnose stuck stopcocks, failing shower mixers, and pressure issues across Richmond upon Thames. You receive transparent fixed quotes and work carried out with durable brass components.
Request a Component Check or Valve Replacement
Tell us what valve or fixture is acting up, and our technician will review your details and phone you right back.
Browse the range
Our Valve and Component Services
Every water tap in your home relies on a mechanical valve inside. We replace, calibrate, and upgrade these critical control points so your water flows smoothly and shuts off reliably.
Mains Stopcock and Isolation Valve Replacement
A crisp brass valve that shuts your water off completely on the first turn.
from £95 per valve replacement
Water Pressure Reducing Valve Installation
Calibrated control to keep street water surges from hammering your pipe joints.
from £135 per unit installed
Thermostatic Shower Valve and Cartridge Rebuild
Smooth temperature adjustment restored by replacing scaled brass cartridges and seals.
from £110 per shower valve
Toilet Cistern Flush and Fill Valve Overhaul
Silent filling and zero pan trickles with matched fluid valves and silicone diaphragms.
from £80 per cistern overhaul
Backflow Prevention and Double Check Valve Fitting
Protect your drinking water from siphoning back through garden hoses or boiler lines.
from £90 per valve installation
Thermostatic Radiator Valve Upgrades and Hydraulic Balancing
Room-by-room heating control with accurate brass TRVs and balanced pipe circuits.
from £150 for up to three radiators
Most requested
Mains Stopcock and Isolation Valve Replacement
This service is for property owners whose main water tap is stuck, weeping or turning without stopping the flow. We locate the supply point, drain down the local pipe run, cut out the seized fitting and install a full-bore brass lever or screw-down stopcock. You get a reliable way to shut off your domestic water instantly whenever work is needed or a leak occurs.
- ✓Full-bore brass quarter-turn lever or traditional BS stopcock
- ✓Isolation check at external boundary box when accessible
- ✓Pipe re-rounding and fresh copper olive fitting
- ✓Pressure testing under working mains load
- ✓Drain-down and refill of affected pipe branch
- ✓Old brass fitting taken away for metal recycling
Who does the work
If a washer is half a millimetre off, water will find the path of least resistance. We verify dimensions and seat alignment before anything is boxed.
Why do minor plumbing repairs often turn into major emergencies? Most failures happen because of brittle casting and poorly sized rubber seals. We supply plumbers and homeowners with solid brass, stainless steel, and verified EPDM components that fit accurately the first time.
Richmond Brass & Valve
Before you book
how to choose the correct tap cartridge size
Count the number of small teeth on the top brass stem, which is called the spline count. Next, measure the overall length from the base washer to the top tip using a ruler or calliper. If the tooth count and millimeter length match our product specification sheet, the cartridge will fit your tap body.
what is cw617n brass made of
CW617N is a standardized brass alloy composed primarily of copper and zinc with small controlled additions of lead for machinability. It is hot-forged to eliminate internal air pockets and resist dezincification in hard tap water. This structure keeps pipe fittings from cracking under mains pressure.
how long do epdm rubber washers last
EPDM washers withstand alternating hot and cold water cycles for years without drying out or hardening. Unlike basic natural rubber, EPDM resists chlorine and scale buildup. Keep unused spares in a dark, dry drawer until you need them.
delivery to a flat without a lift
The courier will deliver your parcel directly to your apartment door regardless of which floor you live on. Packages are packed into lightweight, manageable cardboard boxes that courier staff carry easily up stairs. You can hand cash directly to the courier or pay via bank transfer in advance.
what happens if it does not fit
If an item does not match your pipework, you can return it within thirty days of delivery as long as it is unused and in its original packaging. Return postage is covered by the customer unless the part supplied was faulty or incorrect. Once received at our Richmond address, your refund is processed by bank transfer.
Take Control of Your Home's Water Supply
Have a dripping stopcock or unpredictable shower temperature? Send us a quick note or call our George Street shop for an exact quote within two hours.