Radiator valve repairs in London
Silver Saints repair radiators and radiator valves across London. Leaking valves, cold radiators, seized TRVs, bleeding and balancing, and radiators off the wall for decorating.
Experienced handymen we know, not an app of anonymous bidders.
Radiator, valve and heating work is charged at this rate rather than our standard handyman rate.
Plus parts. No call-out fee. Saturday at the weekday rate. Most valve repairs and TRV swaps take one to one and a half hours.
What we fix
Where a radiator is cold tells you most of what you need to know. Cold at the top is air, cold at the bottom is sludge, and cold all over is usually the valve or the balance of the system.
A leaking radiator valve
The classic drip at the tail or the valve body, caught before it marks the floor.
Cold at the top
Air in the radiator, which is the quickest and cheapest of the lot to cure.
Cold at the bottom
Sludge sitting in the bottom of the radiator, which is a different problem entirely.
Replace a valve or TRV
Drained down, the old valve off and a new manual valve or TRV on.
A seized or stuck valve
A valve that will not turn, or a TRV head that has stopped controlling anything.
Bleed and balance
Air out and the flow evened across the system, so the far radiators heat too.
Remove and refit for decorating
Off the wall and back on, drained and refilled properly.
A noisy or knocking radiator
Banging and gurgling, usually air or flow rather than the radiator itself.
Replace a leaking radiator
Where the panel itself has corroded through, not just the valve.
We work on manual and thermostatic radiator valves, lockshield valves, steel panel and cast-iron radiators, compression fittings, tails and bleed valves, and on central heating circuits and inhibitor.
Different job? For a boiler or a whole system not heating see gas and heating, for a badly sludged system see central heating power flush, and for a leak you cannot locate see sourcing and curing leaks.
What it costs
Labour at £98 plus VAT per hour, plus parts. Draining down and refilling the circuit is what sets the time on most radiator jobs, not the repair itself.
Where we cover
We cover all London boroughs plus the TW, KT, CR and BR postcode areas. London period houses and conversions carry old systems with cast-iron radiators and decades of sludge, while new-build flats run compact systems where one unbalanced radiator is felt straight away. Engineers cross central London by motorcycle and scooter, which means faster arrival and easier parking.
Landlords and letting agents
A cold radiator reported in winter needs dealing with quickly, and it is usually air or a seized valve rather than anything structural.
We arrange access with your tenant or collect keys from your agent, so you do not need to attend, and we bleed and balance the rest of the system while we are there.
Account invoicing and pre-approved spend limits are set out on our landlord services page.
Air, sludge or valve
Cold at the top is air, and bleeding it is the quickest fix there is.
Cold at the bottom is sludge sitting in the radiator, and bleeding will not touch it. We will say when a system is sludged enough to need a power flush rather than a repair.
Cold all over usually means the valve or the balance of the system, so we check the TRV and the lockshield before anything comes off the wall.
Why Silver Saints
We are a managed service, not a bidding app: every Saint is a vetted professional we know personally, not a login on a marketplace.
Radiator repair FAQs
How much does radiator repair cost in London?
Radiator, valve and heating work is charged at £98 plus VAT per hour, plus parts. Most valve repairs and TRV swaps take one to one and a half hours.
Why is radiator work charged at a different rate?
Radiator, valve and heating work is charged at £98 plus VAT per hour rather than the standard handyman rate, because it means draining down, working on the heating circuit and refilling it.
Why is my radiator cold at the top but hot at the bottom?
Air in the radiator. Silver Saints bleeds it and checks the pressure, and it is usually the quickest radiator fault to cure.
Why is my radiator cold at the bottom but hot at the top?
Sludge has settled in the bottom of the radiator. Bleeding will not fix that, and a badly sludged system needs a power flush rather than a repair.
Can you replace a radiator valve without draining the whole system?
Often yes, by isolating the radiator. Where the valve will not isolate, Silver Saints drains down as far as needed and refills afterwards.
Can you take a radiator off the wall so I can decorate?
Yes. Silver Saints drains the radiator, takes it off and refits it afterwards, refilling and rebalancing the system.
Are you a job-board app like the marketplaces?
We are not a job-board app. Unlike marketplaces that match your job to the cheapest available bidder, Silver Saints contracts its own team of experienced, vetted, multi-skilled tradespeople, people we know personally and work with directly. From booking to billing, you get one accountable service and a real relationship, not an anonymous login from a gig-economy pool.
Is the work guaranteed?
Yes. Silver Saints gives a 12-month guarantee on labour and on parts we supply for radiator and valve repairs in London, against faulty workmanship or failed parts.
In summary
Silver Saints repair radiators and radiator valves across London. We fix leaking valves, radiators cold at the top from air or cold at the bottom from sludge, replace manual valves and TRVs, free seized valves, bleed and balance a system so the far radiators heat, take radiators off the wall for decorating and refit them, cure noisy and knocking radiators, and replace a radiator where the panel has corroded through. Radiator, valve and heating work is charged at £98 plus VAT per hour, plus parts, rather than our standard handyman rate, and most valve repairs and TRV swaps take one to one and a half hours. Saturday is the weekday rate and there is no call-out fee. Call 0207 0999 199 or book at https://bookings.silversaints.com.
Radiator cold, leaking or knocking?
Book online or call, and we'll sort it quickly with the Silver Service you deserve. Monday to Saturday, 8am to 5pm.
What's included in the service?
What's included in the service
- On-site diagnosis of the valve fault and a clear estimate before any work starts
- Repair in place where possible, including gland repacking and freeing seized TRV pins
- Common 8mm microbore and 15mm valves carried for single-visit replacement
- Pipe-freeze method on sealed systems to avoid draining the whole property
- Correct olive and joint remaking, tightened to seal without cracking the body
- Bleeding and lockshield balancing of every radiator we disturb
- Corrosion inhibitor re-dosed where the system has been drained
- A 12-month guarantee on labour and parts we supply, on insured work
We charge £98+vat per hour for Gas, Heating and Boiler Repairs
Meet the Saints
Martin 
Luke 
Stan 
Patrik 
Jeremy 
Raymond 
Mick 
Dave 
Lukas 
Graham 
Danny 
Jerry 
John 
Leon 
Simone 
Deon 
Stefan 
Paolo 
Juan 
Cosmin 
Eugen 
Paul 
Christo 
Kieran 
Adrian 
Pieter 
Sandor 
John P 
Oleg 
Szymon 
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