Unvented Cylinder Installation
Unvented Cylinder Installation
Unvented hot water cylinder installation in Barnet and North London by G3-qualified engineers — mains-pressure hot water at every tap.
Unvented Cylinder Installation in North London, done properly the first time
An unvented cylinder runs at mains pressure, so upstairs showers in a three-storey Barnet townhouse perform as well as the kitchen tap downstairs. No loft tanks and no gravity feed.
Unvented work is notifiable and must be carried out by a G3-qualified engineer. Sizing, the expansion vessel, the tundish and the discharge pipe route all have to be right, and the discharge route is what usually decides where the cylinder can go.
We install stainless steel cylinders from the major manufacturers, commission them properly and leave you with the benchmark documentation you will need for warranty and for selling the house.
Why choose Norvex for unvented cylinder installation
Premium workmanship, fixed pricing and a service experience built around you.
G3-qualified engineers
Mains-pressure hot water everywhere
Cylinder sized to household demand
Correct tundish and discharge routing
Benchmark documentation provided
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 unvented cylinder installation
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
What size cylinder do I need?
It depends on occupants, bathrooms and usage patterns rather than floor area. We size it at survey so you neither run out nor pay to reheat water you never use.
Does an unvented cylinder need servicing?
Yes — annually. The expansion vessel charge and the safety valves must be checked, and most manufacturer warranties require it.
Are your unvented cylinder installation engineers Gas Safe registered?
Yes — every engineer working on unvented cylinder installation 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 unvented cylinder installation?
Yes. We provide a free, no-obligation written quote with fixed pricing, so you know exactly what your unvented cylinder installation will cost before any work starts.
Which areas of North London do you cover for unvented cylinder installation?
We provide unvented cylinder installation across the whole of North London, including Barnet, Finchley, Muswell Hill, Hampstead, Highgate, Enfield and the surrounding N, NW and EN postcodes. Local engineers means short call-out times wherever you are.
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 unvented cylinder installation with a Gas Safe engineer — fixed pricing, same-week appointments.
Book unvented cylinder installation today
Free quotes, fixed pricing and Gas Safe engineers across Barnet, Finchley, Muswell Hill, Hampstead and the rest of North London.