24/7 EMERGENCY

Burst pipe? Boiler down? No hot water? Engineers on call right now —

Mon–Fri 8am–6pm · Sat 9am–5pm ·

Emergency line open 24/7

Registered

Trustpilot 4.9★

Local Cylinder Specialists

Hot Water Cylinder Replacement Kingston upon Thames

Vented and unvented hot water cylinders replaced by experienced engineers across Kingston upon Thames — fixed price agreed before any work starts, no call-out charge.

KT1

KT2

KT3

KT5

KT6
KT9

Get a Free Cylinder Replacement Quote

Respond within 2 hours · No call-out charge

🔒 No obligation. Fixed price confirmed before any work starts.


90+

Hot water cylinders replaced

15+

Years of plumbing experience

4.9★

Trustpilot rating
1,800+ verified reviews

6

Postcode areas covered

£0

Call-out charge
ever, any time

Gas Safe Reg. 123456

Which? Trusted Trader

TrustMark Registered

★ Trustpilot 4.9

£5M Insured

Dual-Qualified Electricians

SIGNS YOU NEED A REPLACEMENT

Is Your Cylinder on Its Way Out?

Most cylinders last 10–15 years. These are the warning signs we see most often across Kingston upon Thames.

Leaking or Rusty Water

Water pooling around the base, or discoloured water from the hot tap, usually means internal corrosion.

Inconsistent Hot Water

Running out of hot water quickly, or water that’s never quite hot enough, points to a failing cylinder.

Banging or Rumbling Noises

Limescale build-up inside older cylinders can cause knocking sounds as water heats.

Weak Water Pressure

Poor pressure at the taps and shower, especially in older vented systems, often signals it’s time to upgrade.

THE PROCESS

How It Works

From enquiry to a finished, working system, in four steps.

Call or request online

Tell us about your project and the best time for a survey. Takes under 2 minutes.

Free survey booked

We call you back within 15 minutes to arrange a visit and design the right system.

Fixed price agreed

You're given a fixed quote covering supply, fitting and connection before any work begins.

Fitted & guaranteed

Cylinder fitted, tested and certified where required, with a 12-month workmanship guarantee.

CAPABILITY

Vented or Unvented — We Fit Both

The right cylinder depends on your existing system, mains pressure, and what you want to improve.

Vented Cylinder Replacement

A straightforward like-for-like swap fed from a cold water storage tank in the loft — usually the simplest and most cost-effective option if your existing system works well.

Simplest, most cost-effective

Unvented Cylinder Replacement or Upgrade

Fed directly from the mains, giving strong, consistent pressure at every outlet without a loft tank. Requires Building Regulations G3 compliant installation, which we handle as standard.

Best water pressure

TRANSPARENT PRICING

Hot Water Cylinder Replacement Cost in Kingston upon Thames

Fixed prices confirmed after a free survey — no call-out charge, no hidden extras.

Fixed Price

Vented Cylinder Replacement

Half day · like-for-like swap

from £950

Most Popular

Fixed Price

Unvented Cylinder Replacement

1 day · G3 compliant install

from £1,650

After Survey

Larger / High-Capacity Cylinder

1 day · larger households

from £2,400

💡 All prices are fixed and agreed before work starts, including disposal of your old cylinder and full pressure testing. No evening, weekend or bank holiday surcharge.

WHY CHOOSE US

Why Kingston upon Thames Homeowners Choose Us

Both vented and unvented systems fitted

Honest advice on which cylinder suits your home, not just the most expensive option.

£5M public liability insurance

Full insurance cover on every job.

Local engineers

Based in and around South West London for fast survey and installation scheduling.

Fixed price, no surprises

The price agreed at survey stage is the price you pay.

12-month guarantee

All installations across Kingston upon Thames carry our written workmanship guarantee.

Local to South West London

Our engineers are based locally, not dispatched from far across the city — meaning faster appointments across Kingston, Surbiton, New Malden and Chessington.

Verified Customer Reviews

What Kingston upon Thames Customers Say

4.9

Trustpilot

4.9★

Google

4.8★

Which? Trusted Trader

Read all reviews on Trustpilot →

“Noticed our cylinder leaking one evening and had it replaced within a couple of days. Clear pricing from the start.”

Picture of Sarah C.

Sarah C.

Chessington, KT9

✓ Verified

“Upgraded from vented to unvented for better pressure. Explained the Building Regs side clearly, no surprises.”

Picture of Marcus J.

Marcus J.

Kingston, KT1

✓ Verified

“Old cylinder kept making banging noises. Replaced with a new unvented one, water pressure has never been better.”

Picture of Patricia O.

Patricia O.

Surbiton, KT5

✓ Verified

FAQs

Hot Water Cylinder Replacement Kingston upon Thames — Questions Answered

A vented cylinder replacement starts from £950, an unvented replacement or upgrade from £1,650, and a larger high-capacity cylinder from £2,400. All prices are fixed and agreed before work starts.
A vented cylinder is fed from a cold water tank in the loft, while an unvented cylinder is fed directly from the mains, giving stronger and more consistent pressure. Unvented systems require Building Regulations G3 compliant installation, which we carry out as standard.
It can be urgent if your cylinder is actively leaking, but most replacements are planned rather than emergency callouts. Call us and we'll advise on the best timing for your situation.
Yes. We install boilers across the entire Kingston upon Thames borough — Kingston, Kingston Hill, Kingston Vale, New Malden, Surbiton, Tolworth and Chessington — postcodes KT1, KT2, KT3, KT5, KT6 and KT9.
A vented cylinder swap typically takes half a day, while an unvented replacement or upgrade usually takes a full day due to the additional certification requirements.

Ready to Replace Your Hot Water Cylinder?

Fixed price agreed before we start. experienced engineers. Most installations completed in a single day.

Nearby Areas

Hot Water Cylinder Replacement in Nearby London Boroughs

We also cover these neighbouring boroughs — same fixed prices, same-day availability.