Radiator Repair
Cold spots, leaks, and banging pipework usually point to a fixable fault rather than a dying heating system, and we'll tell you honestly which it is. Our team sorts it properly and tidily, with no mess left behind and no unnecessary parts sold.
What's covered under radiator repair
From a single cold radiator to a whole house that never quite heats evenly, here's what we typically sort out.
Leak Diagnosis & Repair
Finding the source of a weep or drip at a joint, valve or radiator body and fixing it at the cause.
Powerflushing & Sludge Removal
Clearing built-up sludge and debris that's blocking flow and causing cold patches or noisy pipework.
Cold Spot & Valve Fixes
Bleeding trapped air, balancing radiators and repairing or replacing faulty valves and TRVs.
Radiator Replacement
Swapping out a radiator that's too corroded or damaged to repair, matched to the room and system.
Getting your radiators working properly again
A radiator that's cold at the top, cold at the bottom, or just never quite warms up isn't something to live with, and it's rarely as costly to fix as people expect. Most faults come down to trapped air, a stuck valve, a build-up of sludge inside the system, or a small leak at a joint, all of which can usually be repaired without replacing anything. We see this daily across homes in Brighton, Hove, Woodingdean and the surrounding Sussex towns, and it's one of the quickest wins we do for comfort and running costs.
We start by working out what's actually wrong rather than guessing. That means checking valves, bleeding the radiator to rule out trapped air, and looking at whether the wider system needs a proper flush to clear years of built-up sludge and debris. If a radiator's genuinely past saving, corroded through or leaking from the body itself, we'll say so plainly and talk you through a straightforward replacement rather than a repeated repair.
A cold radiator is almost always a symptom, not the problem itself.
Once the cause is sorted, we refill and rebalance the system so heat is distributed evenly across every room, not just the radiator we've worked on. It's a small step that a lot of quick fixes skip, and it's usually the difference between a temporary patch and a proper lasting repair.
More information
Common issues we're called out for
- One or two radiators cold while the rest of the house is fine
- Banging, gurgling or ticking pipework
- Radiators that need bleeding constantly
- Black sludge or discoloured water when bleeding
- Leaks at valves, joints or the radiator body itself
Most of these point to sludge, trapped air, or a failing valve rather than a dead radiator, which is good news for your wallet. As an accredited Vaillant installer, and Gas Safe registered for domestic gas work under registration 568345, we also look at how your radiators interact with the boiler itself, since a poorly performing heating system often shows up first as cold spots on individual radiators.
Fixing the actual cause means you're not calling us back out for the same problem next winter.
We work across Brighton, Hove, Worthing, Lewes, Shoreham-by-Sea, Haywards Heath, Seaford and Burgess Hill, and we're based at 58 Warren Road in Woodingdean if you'd rather pop in and talk it through. Whether it's a single radiator playing up or the whole system needs a flush, get in touch and we'll take it from there.
“Our ancient boiler broke last year, RK were quick to advise us on the best replacement and fit a new boiler. They also checked the radiators (at no extra cost) in our home as they weren't heating up evenly. A year on they reminded us to book our yearly service. Highly recommend.”
Elizabeth Diffey
Worth considering
Smart Thermostat Installation
Smart thermostat fitting for homes in Brighton, Hove and Sussex, checked for wiring compatibility and set up ready to use.
Smart Thermostat Installation→Heating Controls Installation
Thermostats, programmers and smart heating controls supplied, fitted and set up for homes across Brighton, Hove and the surrounding Sussex towns.
Heating Controls Installation→Underfloor Heating Installation
Wet and electric underfloor heating installed neatly and tested properly, often alongside bathroom design and fit-outs.
Underfloor Heating Installation→Central Heating Repair
Gas Safe registered central heating fault-finding and repair for homes across Brighton, Hove and Sussex.
Central Heating Repair→Radiator Valve Replacement
Seized, dripping or outdated radiator valves replaced and leak-tested, for homes across Brighton, Hove and the surrounding Sussex towns.
Radiator Valve Replacement→Underfloor Heating Repair
Diagnosis and repair of wet and electric underfloor heating systems, with minimal floor disruption, for homes across Brighton, Hove and Sussex.
Underfloor Heating Repair→Before you book
Straight answers to the questions we're asked most about fixing radiators.
How do I know if my radiator needs repairing or replacing?
What's a powerflush and do I need one?
How long does a typical radiator repair take?
Are you Gas Safe registered?
Do you cover my area?
Will you leave a mess?
Can you fit thermostatic radiator valves (TRVs)?
Let's sort your radiators
Tell us what's going on and we'll get back to you with honest advice on whether it's a quick fix or something bigger.
Call 01273 911551