Combi Conversion
Combi Conversion
Combi conversion in Barnet — remove the cylinder and loft tanks and free up a whole cupboard, with mains-pressure hot water on demand.
Combi Conversion in North London, done properly the first time
A conversion is more than swapping a boiler: the cylinder comes out, cold water storage tanks are removed from the loft, redundant pipework is capped or stripped, and the system is converted to sealed operation with a new expansion vessel and pressure relief.
It is one of the most popular jobs we do in Barnet's smaller terraces and flats, where the airing cupboard is valuable space. Typically two days on site.
We check mains flow rate first. If your incoming supply cannot deliver enough litres per minute, a conversion would leave you with a worse shower than you have now — and we will tell you before you commit, not after.
Why choose Norvex for combi conversion
Premium workmanship, fixed pricing and a service experience built around you.
Cylinder and loft tanks removed
Airing cupboard freed up
Mains flow rate tested before we advise
Sealed system converted properly
Full system flush included
12-month workmanship guarantee
A calm, four-step process
From the first call to a tidy handover — no surprises, no jargon, no mess.
Get in touch
Call us or send a quick enquiry — we'll respond within an hour during working hours.
Free survey & quote
An engineer assesses the work and gives you a clear, written, fixed-price quote.
Book a date that suits you
Choose a slot that fits around your schedule — we work evenings and weekends.
Work completed cleanly
Uniformed engineers carry out the work, tidy up fully and walk you through everything before leaving.
Get a fast quote for combi conversion
Free, no-obligation quotes. Most calls answered within 30 seconds.
Why choose Norvex
Gas Safe Registered
Every engineer registered & ID-checked
Manufacturer Accredited
Worcester, Vaillant, Ideal & more
Same-week Appointments
Most jobs booked within 48 hours
5★ Reviewed
Hundreds of verified reviews
Your questions, answered
How long does a combi conversion take?
Usually two working days — one to strip out and re-pipe, one to install, commission and make good.
Will my shower be as good?
That depends entirely on your incoming mains flow rate, which we measure at survey. Good flow means an excellent shower; poor flow means we would recommend against converting.
Are your combi conversion engineers Gas Safe registered?
Yes — every engineer working on combi conversion in North London is Gas Safe registered, manufacturer-trained and fully insured to £5m public liability. We'll show our ID on arrival.
Do you offer a free quote for combi conversion?
Yes. We provide a free, no-obligation written quote with fixed pricing, so you know exactly what your combi conversion will cost before any work starts.
What our customers say
"Quoted, fitted and gone in a day. New boiler, no fuss, new smart thermostat thrown in. Best tradespeople we've had in years."
Sarah, Barnet
"Emergency call at 9pm — engineer on site by 10:30. Sorted the leak that night. Highly recommend."
Michael, Finchley
"Total bathroom renovation. Beautiful job, on budget, finished early. We'll be using Norvex for the kitchen next."
Priya, Highgate
Ready when you are
Book combi conversion with a Gas Safe engineer — fixed pricing, same-week appointments.
Book combi conversion today
Free quotes, fixed pricing and Gas Safe engineers across Barnet, Finchley, Muswell Hill, Hampstead and the rest of North London.