24/7 EMERGENCY
Burst pipe? Boiler down? No hot water? Engineers on call right now —
Mon–Fri 8am–6pm · Sat 9am–5pm ·
Emergency line open 24/7
Gas Safe Reg: 123456
Trustpilot 4.9★
24/7 EMERGENCY
Burst pipe? Boiler down? No hot water? Engineers on call right now —
Emergency line open 24/7
Gas Safe Reg: 123456
Trustpilot 4.9★
Cold spots, leaks, faulty valves or a full system rebalance — our engineers repair, replace and balance radiators across the Square Mile. Fixed price agreed before we start.
EC1
EC2
🔒 No obligation. Fixed price confirmed before any work starts.
From a single cold radiator to a whole flat that never quite heats evenly, we diagnose the actual cause rather than just papering over the symptom.
Usually trapped air — a quick bleed restores full heat, common after a system's been off over summer.
Often sludge build-up restricting flow — common in Barbican and older converted buildings that haven't been power flushed in years.
A worn valve or corroded joint can develop a slow drip that's easy to miss until it causes damage.
Common in larger converted flats near St Paul's — a system that's out of balance heats some rooms while others stay cool.
Whether it’s a single valve repair or a whole-system rebalance, the process is the same: diagnose properly, price fairly, fix it right.
We check whether the issue is trapped air, sludge, a faulty valve, or a wider system balancing problem.
You're told the cost before any work begins, whether it's a simple bleed or a full radiator replacement.
Work carried out to manufacturer specification, including power flushing where sludge is the underlying cause.
Full heat-up test across the system before we leave, confirming even, reliable heating throughout.
From a quick bleed to a full system rebalance, matched to your property.
Trapped air, minor leaks and faulty valves resolved quickly, often in a single short visit.
Clears sludge and debris from older systems, restoring efficient heat transfer and reducing boiler strain.
New radiators fitted and the whole system rebalanced so every room heats evenly, not just the nearest to the boiler.
Fixed prices agreed before we start. No call-out charge.
Fixed Price
Most Common
Fixed Price
After Assessment
We identify the actual cause — air, sludge, a faulty valve, or imbalance — before recommending any fix.
Most repairs and diagnoses across the Square Mile are completed the same day you call.
Familiar with the sludge and balancing issues common in Barbican and older converted buildings.
Same pricing whether you're in EC1 Barbican or EC4 St Paul's.
Reg. No. 123456 — essential for any work connected to your boiler or wider heating system.
Hundreds of local customers have rated our radiator repairs five stars for speed and quality.
Read all reviews on Trustpilot →
“Two radiators stayed cold no matter what in our Barbican flat. Turned out to be years of sludge build-up. Power flush sorted it completely, whole flat heats evenly now.”
“Slow leak from a radiator valve in our flat near Moorgate that we’d been ignoring. Fixed in under an hour, fixed price, no fuss.”
“System was badly out of balance — some rooms boiling, others freezing, in our flat near St Paul’s. Engineer rebalanced the whole flat properly, big difference straight away.”
This is usually trapped air, which rises to the top of the radiator and blocks hot water from reaching it.
Bleeding the radiator releases the trapped air and is normally a quick, low-cost fix.
This pattern usually points to sludge or debris settling at the bottom of the radiator, restricting water flow.
A power flush clears the build-up and restores full, even heat.
A bleed and basic diagnosis starts from £69, a valve or leak repair from £99, and power flushing or replacement work from £280 depending on the number of radiators involved.
All prices are fixed and agreed before work starts.
Power flushing forces water through your heating system at high velocity to clear out sludge and debris.
It's typically needed if several radiators are cold at the bottom, your boiler is noisy, or your system hasn't been flushed in several years.
Same-day callouts, fixed price agreed before we start. Call now or book online.
We also cover these neighbouring boroughs — same fixed prices, same engineers.