Water heater repair

Reliable Local Water Heater Repair Specialists

When you need dependable water heater repair in London, our skilled Gas Safe registered engineers are ready to help. From no hot water and unusual noises to leaks and performance issues, we diagnose and fix problems quickly and efficiently. Expect transparent pricing, clean workmanship, and a fast, hassle-free service every time.

Our Services

Trusted Local Water Heater Repair Experts

For dependable water heater repair in London, our Gas Safe registered engineers are equipped to resolve everything from no hot water and unusual noises to leaks and system faults. We provide fast response times, transparent pricing, and clean, professional service you can rely on.

Call us on 020 7126 7126 to speak to a qualified water heater engineer.

Our Services

Keeping London Warm

From plumbing and heating to drainage and electrics, our skilled team will have your home up and running in no time.

Why Choose Us

Why Londoners Trust Plumus for Fast & Reliable Water Heater Repair

With over 3,000 jobs completed, our DBS-checked and Gas Safe Registered engineers provide dependable water heater repairs, diagnostics and emergency callouts across London, supported by clear pricing, robust guarantees and professional standards on every job.

Clear, Upfront Pricing

Know the cost before we start. We offer transparent pricing with no hidden fees, providing total cost clarity

Loved By London

Plumus is a growing force in London, with thousands of jobs completed and an equal number of happy clients to show for it.

Unmatched Quality

We always ensure that our work is carried out to the highest possible quality, offering clients a premium experience.

Fully Insured

Our work and your property is fully protected during the leak detection process, giving you peace of mind.

Water Heater Diagnostics & Repairs

A failing water heater can disrupt your entire household, leaving you without hot water for bathing, cleaning and heating. Accurate diagnosis is essential to avoid unnecessary replacement costs. Our Gas Safe Registered engineers use advanced diagnostic tools to test thermostats, heating elements, gas valves, pressure relief valves and dip tubes. We identify the root cause – whether it’s a failed component, sediment buildup, gas supply issue or electrical fault – and explain your repair options clearly before any work begins. Most water heater repairs include a 12 month guarantee on parts and labour for added peace of mind.

Water Heater Diagnostics & Repairs

A failing water heater can disrupt your entire household, leaving you without hot water for bathing, cleaning, and everyday comfort. Accurate diagnosis is essential to avoid unnecessary replacement costs. Our Gas Safe registered engineers use advanced diagnostic tools to assess thermostats, heating elements, gas valves, pressure relief valves, and dip tubes.

We identify the root cause—whether it’s a faulty component, sediment buildup, gas supply issue, or electrical fault—and explain your repair options clearly before any work begins. For added peace of mind, most repairs come with a 12-month guarantee on parts and labour.

Leaking Water Heater Repairs

A leaking water heater can cause significant damage to floors, ceilings and surrounding areas if left untreated. Not all leaks mean the unit needs replacing. Our engineers identify the exact source of the leak – whether from a loose inlet/outlet connection, faulty temperature and pressure relief (TPR) valve, corroded tank, cracked drain valve or failed internal seal. Where possible, we repair the leak by replacing the faulty component. If the tank itself is corroded, we’ll advise on replacement options. All leak repairs carried out by us are covered by a 12 month workmanship guarantee.

Strange Noises & Sediment Buildup

Popping, rumbling or banging noises from your water heater are usually signs of sediment buildup (limescale) inside the tank. Over time, minerals in London’s hard water settle at the bottom, trapping water underneath and causing the popping sound as it heats and escapes. If left untreated, sediment reduces efficiency, increases energy bills and can lead to tank failure. Our engineers offer professional power flushing and descaling services to remove sediment buildup, restore efficiency and extend the life of your water heater. We also check and replace sacrificial anodes where applicable to prevent future corrosion.

Emergency Water Heater Repair – 24/7/365

For complete water heater failure, leaking tanks, gas smells or no hot water during freezing weather, our emergency water heater repair service operates 24/7 across London. When you call, we gather key details to understand the urgency, offer immediate safety advice (such as turning off the water or gas supply where necessary), and dispatch a Gas Safe Registered engineer as quickly as possible. On arrival, we focus first on making the situation safe, stopping any leaks or gas risks, and restoring hot water where feasible. Any follow-up work, including full replacement if the unit is beyond repair, is then quoted clearly so you can decide how to proceed.