🌧 Guttering Specialists — All London Boroughs
Hot Water Cylinder Replacement London – Fast & Reliable Service
We provide hot water cylinder replacement in London for old, leaking, or inefficient systems. Qualified engineers, all cylinder and tank types, fixed price agreed before we start.
📋 Get Your Free Replacement Quote
Same-day assessment available · No call-out charge
✓ No call-out charge ✓ Fixed price ✓ No obligation
600+
Cylinders replaced in London
4.9★
Trustpilot rating
1 Day
Most replacements completed
33
London boroughs
covered
£0
Call-out charge
Signs It’s Time to Act
Is Your Hot Water Cylinder or Tank Failing?
A failing hot water cylinder doesn’t usually give much warning before it becomes a serious problem. Loss of hot water, visible corrosion, and unexplained damp patches are all signs your system is reaching the end of its useful life — or already past it.
Most cylinders and tanks last 10–15 years. Beyond that, the risk of failure increases significantly. Replacing proactively — before a failure — is always cheaper and less disruptive than an emergency replacement after a flood or complete system breakdown.
Our engineers attend across all 33 London boroughs and can assess your system the same day to confirm whether repair or replacement is the right option.
No Hot Water or Very Low Supply
Cylinder has failed, element has burnt out, or the system can no longer meet demand
Leaking Cylinder or Tank
Any water leaking from the unit itself is a critical sign — corrosion or a failed joint
Rusty or Discoloured Water
Brown or reddish water indicates internal corrosion — the cylinder is deteriorating from inside
Weak Hot Water Pressure
Sedimentation and scale buildup reduces heat transfer efficiency and flow rate over time
What’s Included
Our Cylinder & Tank Replacement Service in London
End-to-end replacement — from removing the old system to handing over a fully tested, working installation. No separate trades needed.
Remove Old Cylinder or Tank
The existing unit is safely drained, disconnected, and removed — including all associated pipework and fittings that won't be reused. Disposal is handled as part of the job.
Install the New System
Your replacement cylinder or tank is installed to specification, correctly positioned, insulated, and secured. Unvented cylinder installations are carried out by G3-qualified engineers.
Connect to Plumbing & Heating
All pipework connections to your heating system, cold supply, and hot outlets are made, sealed, and tested. Safety components — pressure relief valves, expansion vessels — are fitted where required.
Full System Testing
Hot water recovery, pressure, temperature output, and all connections are tested before sign-off. A job report is provided. The work area is cleared and left clean.
Capability
We Replace All Types of Cylinders & Water Tanks
Our engineers are qualified to replace every type of domestic hot water cylinder and cold water storage tank used in London homes.
Most common in London — built pre-1920
Open-vented systems
Vented cylinders work with a cold water storage tank, usually in the loft, and vent to atmosphere through an open pipe. The most common type in older London homes and straightforward to replace like-for-like.
- Works with gravity-fed cold water supply
- Compatible with most older heating systems
- Simple, proven technology with low maintenance
- Direct and indirect configurations available
Unvented Cylinders
Mains-pressure systems
Unvented cylinders connect directly to the mains cold water supply, delivering hot water at mains pressure — a significant improvement over gravity-fed systems. Requires a G3-qualified engineer to install. Popular upgrade in London conversions and refurbishments.
- Mains-pressure hot water throughout the home
- No cold water tank needed — frees up loft space
- Better performance for multiple bathrooms
- G3-qualified installation — compliant & certified
Cold Water Storage Tanks
Loft / header tanks
Cold water storage tanks — typically located in the loft — feed vented cylinders and some older plumbing systems. Older tanks can corrode, crack, or contaminate the water supply. Replacement restores water quality and system reliability.
- WRAS-approved tank materials
- Correct float valve and overflow fitted
- Inspected and cleaned before new tank fitted
- Combined with vented cylinder replacement where needed
What You Get
What You Get After Replacement
A properly replaced cylinder or tank doesn’t just fix the immediate problem — it changes how your hot water system performs every day.
Reliable Hot Water — Every Time
No more cold showers, waiting for recovery, or unexplained hot water failures. A new cylinder matched to your household demand delivers consistent performance.
Better Pressure Throughout
An upgrade to an unvented cylinder delivers mains-pressure hot water to every tap and shower in your home — a transformative improvement in larger properties.
Improved Energy Efficiency
Modern cylinders with better insulation and heat retention reduce the energy needed to maintain hot water temperature — lowering your running costs from day one.
No Leaks, No Breakdowns
A correctly installed system with proper safety components and sealed connections gives you years of trouble-free operation — and the peace of mind that comes with it.
Transparent Pricing
Cylinder & Tank Replacement Cost London
Replacement costs vary based on the cylinder type, size, and whether additional plumbing work is required. All prices are fixed and agreed with you before work begins — no call-out charge, no surprises.
Vented Cylinder Replacement
Like-for-like swap, existing pipework reused
£[INSERT]
3–5 hrs / Same Day
Unvented Cylinder Replacement
G3-qualified installation, safety components included
£[INSERT]
4–6 hrs / Same Day
Vented → Unvented Upgrade
System conversion including pipework changes
£[INSERT]
Full day / Next Day
Cold Water Storage Tank Replacement
Loft tank, float valve and overflow included
£[INSERT]
2–3 hrs / Same Day
Combined Tank + Cylinder Replacement
Cold water storage tank and vented cylinder replaced together
Full day / Next Day
How our pricing works:
All prices are fixed and agreed with you before any work starts. There is no call-out charge. If additional pipework or plumbing adjustments are required beyond the standard replacement, these are quoted separately and approved by you before work proceeds. The old cylinder or tank is removed and disposed of as part of the job — no additional disposal fee.
Our Process
How We Replace Your Cylinder or Tank
A straightforward four-step process — clear at every stage, with your agreement required before work begins.
Inspect the System
We assess your existing cylinder or tank, the associated pipework and heating connections, and confirm the right replacement specification. A fixed price is agreed with you before any work starts.
Remove the Old Unit
The old cylinder or tank is safely drained, disconnected from all pipework, and removed from the property. Any old fittings and insulation are cleared. The area is left prepared and clean for installation.
Install the New System
The replacement unit is installed to manufacturer specification, fully connected to your plumbing and heating system, and all joints sealed and checked. Safety components are fitted and commissioned where required.
Test & Confirm Performance
Hot water recovery, pressure, temperature output, and all connections are tested before sign-off. A written job report is provided. The installation area is fully cleaned before we leave your home.
Why Choose Us
Why Choose Our Cylinder Replacement Experts in London
G3-Qualified for Unvented Systems
Unvented cylinder installation is a notifiable building regulation — it must be carried out by a G3-qualified engineer. Our team includes G3-qualified plumbers for all unvented work, ensuring every installation is compliant, certificated, and safe.
G3-qualified — all unvented installations certificated
Safe, Regulation-Compliant Installation
All installations meet current building regulations and manufacturer requirements. Safety components — pressure relief valves, expansion vessels, temperature controls — are fitted and tested as standard. You receive written confirmation of all work completed.
Building regulations compliant · All safety components fitted
Experienced London Plumbers
Our engineers have replaced hundreds of cylinders and tanks across every type of London property — Victorian terraces, purpose-built flats, conversions, and new builds. We know how to work efficiently within the constraints of London homes.
600+ replacements completed across London
Fixed Price, Agreed Up Front
Every replacement is priced and confirmed with you before any work begins. No call-out charge and no additions to the bill without your agreement. If we identify additional work during the job, we stop and advise before proceeding.
£0 call-out · Fixed price always agreed first
4.9★ Trustpilot Rating
Our Trustpilot reviews consistently highlight engineer knowledge, the quality of installation, and transparent pricing. Hundreds of London homeowners have trusted us with their hot water systems and rated us five stars.
4.9★ from 380+ verified reviews
All 33 London Boroughs
Our engineers are based across London — not dispatched from a central depot — so same-day and next-day appointments are genuinely available throughout Greater London, from outer boroughs to central areas.
Local engineers · All 33 boroughs covered
Verified Customer reviews
Customer Reviews for Guttering Services
4.9
1,800+ verified reviews
Trustpilot
4.9★
4.8★
Which?
Trusted Trader
Read all reviews on Trustpilot →
“Hot water restored within hours of calling. The engineer identified a corroded cylinder immediately, had the replacement on the van, and completed the full swap the same day. Couldn’t be happier — we’d been without reliable hot water for two weeks before finding Elite.”
“Upgraded from a vented cylinder to unvented. The difference in water pressure is remarkable — every shower and tap in the house now runs at full pressure. The engineer was professional throughout, explained every stage, and left no mess whatsoever. Highly recommended.”
“Quick replacement of a leaking loft tank that had caused some damp issues. Elite came out same day, replaced the tank and advised on the insulation around the pipework too. No leaks since, great pressure, and the price was exactly as quoted. Excellent service.”
Questions Answered
Cylinder & Tank Replacement FAQs
Most hot water cylinder replacements are completed within a single day. A straightforward like-for-like vented cylinder swap typically takes 3–5 hours. More complex replacements — such as upgrading from a vented to an unvented system — may require a full day's work. We provide a clear time estimate after inspecting your existing setup.
Cylinder replacement costs in London depend on the type, capacity, and any additional plumbing or heating work required. Prices start from £[INSERT] for a standard vented cylinder swap. All prices are fixed and agreed before work begins — no call-out charge and no hidden extras on the final bill.
Most hot water cylinders last 10–15 years. Signs it's time to replace include recurring leaks or visible corrosion, significant drops in hot water pressure or recovery time, a cylinder that's over 15 years old, brown or discoloured water, or a system that no longer meets household demand. Our engineers can assess and advise honestly on whether repair or replacement is the right option.
A well-installed, quality hot water cylinder typically lasts between 10 and 20 years, depending on water hardness, usage levels, and maintenance. Annual servicing extends lifespan significantly. Modern unvented cylinders often come with manufacturer warranties of 25 years on the cylinder itself when installed by a G3-qualified engineer.
Yes. Upgrading from a vented to an unvented cylinder is one of the most popular upgrades we carry out — it removes the need for a cold water storage tank in the loft and delivers significantly better hot water pressure throughout the home. Unvented installation is a notifiable building regulation and must be carried out by a G3-qualified engineer. Our team are G3-qualified and will advise on suitability and any pipework adjustments required.
Yes. Removal and responsible disposal of the old cylinder or tank is included in every replacement job. We disconnect, drain, and remove the old unit and associated fittings, and leave the installation area clean and tidy before the new system is fitted. There is no additional disposal or removal charge.
Have more questions? Talk to us.
We can advise on the right system for your home before you commit to anything.
020 1234 5678
Coverage
Cylinder & Tank Replacement Across London
Our engineers cover all 33 London boroughs for hot water cylinder and tank replacement. Local engineers means same-day and next-day appointments are available throughout Greater London.
Barking & Dagenham
Cylinder replacement
Barnet
Cylinder replacement
Bexley
Cylinder replacement
Brent
Cylinder replacement
Bromley
Cylinder replacement
Camden
Cylinder replacement
City of London
Cylinder replacement
Croydon
Cylinder replacement
Ealing
Cylinder replacement
Enfield
Cylinder replacement
Greenwich
Cylinder replacement
Hackney
Cylinder replacement
Hammersmith & Fulham
Cylinder replacement
Haringey
Cylinder replacement
Harrow
Cylinder replacement
Havering
Cylinder replacement
Hillingdon
Cylinder replacement
Hounslow
Cylinder replacement
Islington
Cylinder replacement
Kensington & Chelsea
Cylinder replacement
Kingston upon Thames
Cylinder replacement
Lambeth
Cylinder replacement
Lewisham
Cylinder replacement
Merton
Cylinder replacement
Newham
Cylinder replacement
Redbridge
Cylinder replacement
Richmond upon Thames
Cylinder replacement
Southwark
Cylinder replacement
Sutton
Cylinder replacement
Tower Hamlets
Cylinder replacement
Waltham Forest
Cylinder replacement
Wandsworth
Cylinder replacement
Sutton
Cylinder replacement
Tower Hamlets
Cylinder replacement
Waltham Forest
Cylinder replacement
Wandsworth
Cylinder replacement
Westminster
Cylinder replacement
Replace Your Hot Water Cylinder Today
Get your hot water system replaced quickly and reliably. Qualified engineers, all cylinder and tank types, fixed price agreed before we start — across all 33 London boroughs.