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Steve and Daniel were quick and efficient came out at short notice found and fixed the fault within the hour Definitely recommend Will be using them again Debbie and lee

Debbie

Job booked in quickly and carried out professionally for a fair price. Would recommend.

Antonio

Quick response to messages and good communication. The job didn’t quite go to plan but Curtis has the patience of a saint! Coming back soon to do another job. Top guy!! Would definitely recommend!

Jeanette

Looking to install or replace an immersion heater? Rated People connects you with trusted professionals skilled in installing and maintaining hot water immersion heaters and electric hot water tanks. Whether you’re upgrading your system or need help with repairs, find experienced local experts to handle the job. Post your job for free and receive up to three quotes today.

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 Immersion heater experts

What is an immersion heater?

An immersion heater is an electric heating element placed inside a hot water tank to heat water directly. It works independently of your central heating system, making it a versatile option for heating water. Immersion heaters can act as the primary source of hot water or serve as a backup to a boiler. They are particularly useful in homes without gas connections or as a supplementary water heating solution.

Advantages and disadvantages of an immersion heater

Advantages:

  • Independent Operation: Immersion heaters don’t rely on a central heating system, providing hot water even if your boiler fails.
  • Energy Source Flexibility: Suitable for homes without gas connections or for using renewable electricity sources.
  • Backup Heating: Many households use immersion heaters as a backup option for their main hot water system.

Disadvantages:

  • Higher Running Costs: Heating water with electricity is often more expensive than gas-powered systems.
  • Time-Consuming: Heating a full tank of water can take longer than instant water heaters.
  • Manual Operation: Unless connected to a timer, immersion heaters must be turned on and off manually to avoid wasting energy.

Immersion heater cost

The cost of installing or replacing an immersion heater depends on the type of heater and whether a new hot water tank is required:

  • Immersion Heater Replacement: Replacing an existing immersion heater typically costs between £150 and £300, including parts and labor.
  • Hot Water Tank Installation: Installing a new electric hot water tank with an immersion heater can cost £500 to £1,000, depending on the tank size and complexity of the installation.
  • Running Costs: Operating a hot water immersion heater costs around £0.20 to £0.35 per kilowatt-hour, depending on electricity rates. Using a timer to heat water during off-peak hours can help reduce costs.

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Other immersion heater and hot water tank FAQs

Can I change an immersion heater myself?

While it’s possible for someone with plumbing knowledge, it’s recommended to hire a professional to ensure safe installation and compliance with regulations.

How long does it take to heat water with an immersion heater?

Heating a full tank typically takes 1 to 2 hours, depending on the tank size and the heater’s wattage.

Do immersion heaters work with solar panels?

Yes, immersion heaters can be connected to solar PV systems to use excess electricity for water heating, making them more energy-efficient.

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Rated People helps immersion heater specialists connect with homeowners looking for expert installation and maintenance services. Whether you install hot water tanks, replace immersion heaters, or offer repairs, sign up today to receive high-quality leads in your area.

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Kieran Hiett Testing avatar

Kieran Hiett Testing

Water Tanks and Immersion Heater

Welcome to FLOW RIGHT roofing and plumbing services we are a family run business and cover all areas of Croydon surry And Bromley and surrounding areas we maintain our self on a very fast And effective service we carry out small repairs to Full Roofs we pride our self in workmanship and customer service.

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Reviewed by peter on 23/4/2025

The roofer, Lewis Brown of Flowright Plumbing and roofing, did the job, I paid him the money, the next day the roof was still leaking as bad as ever. I told the roofer but he has refused to come back and fix it.

Free estimates , work done on hour, day or price basis. 24/7 locksmith Lock out emergency Installing Locks. ... Repairing Locks and doors Refurbishments bedroom-kitchen-bathrooms Hanging Pictures & Mirrors End of tenancy refurbishments Decorating Painting Wood paneling Home improvements Tiling DIY (Construction or Repair) Plastering Bricklaying Emergency plumbing

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Reviewed by Keith on 27/3/2025

Experienced multi tradesman specialising in Gas boiler installation ,boiler servicing and landlord gas safety certification and plumbing, I also carry out the following: •Bathroom/kitchen installation •Emergency work (plumbing gas water electric installation) •Handyman in big or small jobs including painting and decorating •Lighting works •All aspect of plumbing and heating Portfolio and customer feedback from completed work can be shown. Online Free quotations. Covid guidelines followed with strict enforcement.

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Reviewed by Litty on 13/9/2025

Did a good job

Your local, friendly, reliable plumbing and heating services

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Reviewed by Paul on 4/8/2025

EcoDen are excellent. Adam and the team did a great job installing an unvented hot water system in our house. Very knowledgeable and hard working. Highly recommended.

Welcome to Silverdale plumbing ltd, where we take pride in providing friendly and reliable plumbing services. Our experienced plumbers are known for their professionalism, punctuality, quality work, responsiveness, and great value. From leaky taps to major repairs, we offer personalized solutions to fit your needs and budget, with competitive pricing and a satisfaction guarantee. Trust us for fast and effective service that exceeds your expectations. Contact us today for a free estimate and experience the peace of mind that comes with having your plumbing in good hands. "Positive: Professionalism, Punctuality, Quality, Responsiveness, Value Can't speak highly enough of these guys. Professional from the first phone call all the way to completion of the job. Would recommend 5/5" - Ben Nashman ****** No job too small, Give us as call! ****** All repairs and installations big and small under guarantee Full boiler and heating systems installed at competitive prices. Boiler service plans available Emergency gas repairs Emergency plumbing repairs Emergency heating repairs Work Covered: Bathroom Repairs Heating system installation Radiator installations Power-flushing heating systems Bathroom refurbishments Tap Repairs Emergency leak repairs Boiler faults Boiler servicing Boiler Repairs Boiler repairs CP12 Boiler servicing Boiler installations Boiler Upgrades Cylinder fits

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STARHELPLUMBING

Water Tanks and Immersion Heater

Professional and reliable service. No job big or small. More than 7 years in trade.

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Reviewed by Pauline on 22/10/2025

On time very efficient highly recommend

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SM Gas & Plumbing

Water Tanks and Immersion Heater

SM Gas & Plumbing Solutions provide a bespoke service available at your doorstep. Our Gas Safe registered experienced heating engineers undertake all types of breakdown repairs quickly and efficiently including fault finding and diagnostic solution. We provide services such as central heating, gas work, boiler repairs & installation, underfloor heating and all plumbing work including new and repair installations. We are accredited with Ideal, Valliant, Worcester, Potter ton, Glow-worm and Baxi.

R&B refurbishment ltd For a decade, a Proficiency building company based in London has led all aspects of construction, luxury design and build. Whether you're looking to expand or refine your home with a loft conversion, rear or side extension, basement excavation, cellar conversion or a top to bottom refurbishment, our ethos is quality-first craftsmanship for the very best in residential design and build in London. When it comes to the quality and care that we put into every project, we think of ourselves as one of the leading building companies in London. This means that, as the right builder, we have the team, the expertise and the commitment to a high quality that sets us apart. Fully insured with Public and Employers Liability, Professional Indemnity, Contractors All Risk and high-risk basement works. We offer a 15-year guarantee on all of our structural building work. Proficiency only uses the highest quality building materials ensuring everything is built to standard and will last.

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Reviewed by Andrew on 19/5/2025

Fired him for appalling work, no-shows and delays; see his other bad reviews. He's a middle man; does not do any work; got others to do it like a plumber, then a tiler the next day; slow work made worse when someone messed up or did not show up. Ali only shows to deliver materials or check work. Quick to reply when wanting the job. Slow/no response once job starts thinking you wont cancel. Materials I paid not returned; take every receipt and check you keep/use every item as he will even for wipes/tape

Install, repair, and maintain pipes, valves, fittings, drainage systems, and fixtures .Collaborate with general contractors, electricians, and other construction professionals.Follow building plans and blueprints.Respond to, diagnose, and resolve plumbing emergencies.Perform routine inspections of plumbing and drainage systems.

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Reviewed by Cathie on 16/1/2025

Over 15 years experience on plumbing. More that 10 years experience on electrical trade. 2 years experience on gas jobs, Gas safe register

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Reviewed by Michelle on 25/10/2024

In relation to what Daniel can do, this was a small job, but we were very grateful that he was happy to take it on and help us out. He was really receptive to text messages, was very accommodating when we had to change the original work date, and was keen to get back to us as soon as the counters were re-fitted, so we had a working kitchen again. Really lovely chap, and we'd happily have him back for any other work we may need. Highly recommend him.

We are the complete maintenance specialist with over 35 years experience in house hold repairs and installations. Plumbing, Draining,Tiling, DIY project completions. Gardening, Deckings and outside taps. A 24hr Emergency call out service available.

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Reviewed by Martin on 28/1/2024

Ben did an excellent job of the tiling and we would definitely employ him again.

Page Developments undertake all aspects of building work, renovations and property maintenance across Cheshire.

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Reviewed by Robert on 25/9/2025

Page Developments did a great job and really quickly

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Marcin Serafin

Water Tanks and Immersion Heater

About 20 years experience in particular kitchen fitting, bathroom refurbishment, plumbing and basic electric work

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Reviewed by Micheal on 8/11/2024

My name is Tim. I’m a Plumber and bathroom fitter, with 20 years of plumbing repair, plumbing maintenance and plumbing installation, with many years of experience, designing and fitting bathrooms. My work always is quality and guaranteed. Plumbing and plumbing maintenance Plumbing for new build and restoration projects Wet underfloor heating system. Vented and unvented cylinder. Shower pumps Plumbing maintenance repair and replace taps, shower valves, leaks , radiators Unblock toilets, sinks, basins, showers, baths Refit bathrooms. Shower rooms. Wet rooms Heating system and flushing

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Reviewed by Lianne on 11/8/2025

They contacted me really quickly which was fantastic in my urgent plumbing issue. However, the second contract that came round was a little disappointed with. Whilst the primary issue was fixed there was a new second issue that came about. He came a second time to sort but then wanted to further charge an emergency fee. I appreciate it was a weekend but something didn’t sit right. I called a completely different plumber who I trusted before and he said that the wrong part was used which meant it wasnt safe.

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NEE BUILDERS

Water Tanks and Immersion Heater

46 years experience working in the Plumbing and building industry both domestic and commercial.

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Reviewed by Barry on 24/10/2025

Excellent work from Colin. Would not hesitate to use again.

Hi New Valued Customers, My Name is Andrew Petrie of S&A Plumbing Services. I am a fully Qualified Plumber that has been in the industry for 20 years and have worked for various companies including Home Serve & British gas. If you're tired of being over charged, the buck stops here!

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Reviewed by Stephen on 26/10/2025

Andrew came next day. He had different plans to overcome unexpected obstacles as the job progressed. Reasonable price. Guaranteed his work for a year.

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MetroPlumb Bexley

Water Tanks and Immersion Heater

At Metro Plumb (Bexley) we pride ourselves on giving a great plumbing service to our customers. All our plumbers are NVQ qualified and DBS checked. We cover the following postcodes DA, SE and BR from Swanscombe to Charlton down to West Wickham. We’re open 7 days a week so we are always there when you need us.

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Manor Tree

Water Tanks and Immersion Heater

Hello and thank you for looking at our profile. With 20 years experience, over a thousand happy customers, and a friendly, helpful attitude, you can rest assured of a great service. Tap changes Bathrooms Sinks Pipework New or replacement radiators Decorating Small building works / Handyman General repairs and maintenance issues Kitchens etc Reasonably priced We look forward to working with you soon.

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Reviewed by Brian on 12/10/2025

E SAINT GEORGE Ltd is a London & Essex based construction company. We specialise in all aspects of Home Improvements and strive to provide excellent work in order to achieve each individual clients vision. Our Customer Focused Service, ensures that we Communicate-Resolve-Produce superb tailor made projects. E SAINT GEORGE Ltd has an outstanding track record for delivering projects on Time and on Budget. All of our surveys are thoroughly analysed and concisely priced. Our pledge is to deliver all clients with Flat-Rate Costs for all of our contracted services. At E SAINT GEORGE Ltd, we value our highly-skilled team members as the core ingredient to completing every project successfully. HOME IMPROVEMENT SERVICES: - Kitchen Installations - Bathroom Renovations - Flooring (Laminate/Wood) - Tiling - Painting & Decorating - Structural Engineering & Design Services BUILDING WORK SERVICES: - Loft & Basement Conversions - Extensions (Single/Double) - Rendering / Plastering - Patio & Driveway Installations - Gardening & Landscaping - Gas Safe Services - Electrical Services (NICEIC) - Handy Man Services

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Reviewed by neil on 26/7/2024

Endrit and his team were wonderful to work with - friendly and professional and nothing was too much trouble for them, despite me changing aspects of the kitchen renovation and install during the process. They went above and beyond to ensure that everything was perfect and that I was happy with all aspects. My new kitchen looks amazing and I can't recommend Endrit and his team highly enough - I have already recommended E Saint George to friends and will be getting them back to install my bathroom.

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