Sutton Coldfield: leaking radiator valve replaced, carpet kept dry
A corroded radiator valve had started leaking onto the floor. Dust sheets down first, radiator drained, new valve fitted and checked on the same visit.
Read the case studyCase study · Radiators · Sutton Coldfield
Sutton Coldfield: a room that wasn’t warming up, and a single radiator replaced with a double for more heat
At their boiler service, a customer in Sutton Coldfield told us one room wasn't warming up enough. We checked and the radiator was working properly: it just couldn't put out enough heat for the room. On a return visit we replaced the single-panel radiator with a double.
In short
During their boiler service, a customer in Sutton Coldfield mentioned that the radiator in one room wasn't heating the room enough. We checked it and advised them that the radiator was working as it should. The problem was its output: to get more heat into the room, it needed a bigger radiator. The customer went ahead, and on a separate visit last week we took out the single-panel radiator and fitted a double. Another happy customer.
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- Cold roomMentioned at the boiler service
- Working, too smallThe radiator was fine, just short of output
- Single to doubleReplaced on a return visit
The problem
When we were in Sutton Coldfield for the customer's boiler service, they mentioned that one room wasn't warming up enough, even with the heating on.
What we found
We checked the radiator and it was working properly. The problem was its size: a single-panel radiator couldn't put out enough heat for the room. We advised the customer that, for more heat, they needed a radiator with a bigger output.
The new radiator
The customer went ahead, and on a separate visit last week we took out the single-panel radiator and fitted a double-panel radiator in its place. Our radiators and valves page covers radiator swaps and valves.
What it costs
A like-for-like radiator swap is £175 for labour. A bigger radiator, like this one, is quoted: priced and agreed with you before any work starts. Details are on our price list.
Common questions
My radiator gets hot, so why is the room still cold?
A radiator can be working perfectly and still be too small for the room. If it heats up evenly but the room never gets warm, it may not have enough output for the room’s heat loss. That was the case here.
What is the difference between a single and a double radiator?
A single-panel radiator has one panel; a double has two, one behind the other. For the same height and width, a double gives out more heat, which is why it suited this room.
How much does it cost to replace a radiator?
A like-for-like radiator swap is £175 for labour. A bigger radiator, like this one, is quoted: priced and agreed with you before any work starts.
Can I mention problems like this at my boiler service?
Yes. This customer did, and we checked the radiator on the same visit before advising them.
Job attended and photographed by our engineers, November 2026. Written up by Saeed Iqbal, the engineer who leads Synergy Gas & Plumbing (Gas Safe registered 594385). More of our work in the area is on our Sutton Coldfield page, and every job we write up is on the case studies index.
What it costs
Updated Sept 2026£175 labour
A like-for-like radiator swap is £175 for labour. A bigger radiator, like this one, is quoted before any work starts. A new TRV is £125 for the first radiator and £55 for each one after that on the same visit.
No travel charge within 10 miles of B20 2JS. Further out, £2 per mile may apply — always agreed before anything is booked.
This job
Sutton Coldfield · November 2026ProblemOne room not warming up enough
FoundRadiator working, but too small for the room
FixSingle-panel radiator replaced with a double
WhenSpotted at the service; fitted on a return visit
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