Hot Water Cylinders in North London, done properly the first time
Install, replace and service every kind of hot water cylinder — vented, unvented and Megaflo — properly sized to how your household actually uses hot water.
About our hot water cylinders service
A well-specified cylinder transforms a home. Get the sizing and control right and you'll never wait for a hot shower again; get it wrong and either the tank never fully heats or you're heating water no one will use.
Our engineers are G3 qualified for unvented cylinders and fully insured for every install, replacement and service. Annual servicing keeps the manufacturer warranty valid — critical on premium brands like Megaflo, Gledhill and Heatrae Sadia.

Why choose Norvex for hot water cylinders
Premium workmanship, fixed pricing and a service experience built around you.
G3 qualified for unvented systems
Vented, unvented and Megaflo covered
Annual servicing to protect warranties
Megaflo specialists
Warranties up to 10 years available
A calm, four-step process
From the first call to a tidy handover — no surprises, no jargon, no mess.
Get in touch
Give us a ring or drop us a quick note — we usually respond inside an hour during working hours.
Free survey and quote
One of our engineers looks at the job in person and hands you a clear, written, fixed-price quote.
Pick a date that suits
Choose a slot that works around your week — evenings and weekends are on the table.
Work done cleanly
Uniformed engineers carry out the install, tidy up properly and walk you through the system before leaving.
Get a fast quote for hot water cylinders
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
Do I need an unvented cylinder or a vented one?
Unvented cylinders deliver mains-pressure hot water to every outlet and are the modern default in North London homes with adequate incoming pressure. Vented systems still make sense in older properties with a cold tank in the loft and lower mains pressure. We survey both options and recommend the honest fit for your property.
How big should my hot water cylinder be?
Sizing is driven by the number of bathrooms and the peak simultaneous demand — not just the number of people in the house. For a typical three-bed with one bathroom, a 180-litre cylinder is usually plenty; two bathrooms and a family shower push that toward 210–250 litres.
How often should an unvented cylinder be serviced?
Once a year, without fail. It keeps the manufacturer warranty valid and, more importantly, checks the pressure-relief and expansion vessel — both critical safety components on an unvented system.
Are your hot water cylinders engineers Gas Safe registered?
Yes — every engineer we send out for hot water cylinders in North London holds live Gas Safe registration, is manufacturer-trained and covered by £5m public liability. ID is on the lanyard when we arrive.
Which parts of North London do you cover for hot water cylinders?
We deliver hot water cylinders right across North London — including Barnet, Finchley, Muswell Hill, Hampstead, Highgate, Enfield and the surrounding N, NW and EN postcodes. Because our engineers are local, call-out times stay short wherever in the area 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 hot water cylinders with a Gas Safe engineer — fixed pricing, same-week appointments.
Book hot water cylinders today
Free quotes, fixed pricing and Gas Safe engineers across Barnet, Finchley, Muswell Hill, Hampstead and the rest of North London.
