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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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Electrician at Self employed electrical engineer

Latest homeowner review
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Reviewed by Vicky on 25/8/2024

Came out short notice. Managed to squeeze me in. Due to short notice of getting room plastered 3 days later. Had 4 double plugs put in. In chrome like I wanted. They were professional and cleaned up after themselves. Will definitely use again

At Cymraeg Construction, building work has been at the heart of our family for generations with skills, knowledge and training passed on from one to another, even in the day to day running of the business we can call upon over 40 years experience from my father who is an integral part of the company and has made us what we are today with a passion for quality that shines through on every job we undertake. Covering all of South Wales, you can be sure to rely on us to undertake any project you may have from conception to completion, we can take care of all aspects of the build including planning and skilled tradesmen in all trades, let us deal with all the complications and timings as we project manage the process to ensure everything is done correctly and to schedule all while keeping you informed every step of the way. Please feel free to contact us for a free no obligation estimate on any work you may have. Cymraeg Construction.

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Reviewed by carole on 22/5/2025

Gareth and his team were amazing and professional throughout. He was very knowledgable regarding the options available to us. All work was completed quickly and efficiently. Gareth kept in contact with us throughout our garage renovation and even kept in touch afterwards to check everything was ok for the fitment of the garage door. I wouldn’t hesitate to recommend Gareth and his team and would definitely use them again for any future building work on my home. Great job completed.

Cheshire Sales avatar

Cheshire Sales

Water Tanks and Immersion Heater

"Our extensive experience in construction ranges from simple bathroom renovations to large home extensions, loft conversions, and new builds. We collaborate with architects and structural engineers who can visit your home, take measurements, and quickly turn your vision into reality. Whether you already have designs but need pricing, or require budget-friendly solutions, we offer online quotes. Share your plans or ideas, and we'll provide guidance. Perhaps you're just starting with an idea for interior renovation, kitchen extension, loft conversion, or creating designs with architects, builders, or investing in real estate to increase property value – we welcome any inquiry. Feel free to contact us!"

Plumbstar avatar

Plumbstar

Water Tanks and Immersion Heater

Plumbstar has been trading since 2007 We cover all aspects of domestic plumbing and bathroom installations. We are reliable. We are insured. We are qualified with other 20 years of experience working on domestic and commercial plumbing contracts. Plumbstar is a small family run business that takes customer satisfaction very seriously . We take great pride in our work always putting the customer first . All of our work is guaranteed for 12 months , we do not charge a call out fee and we operate 24 hours per day . For a friendly , reliable and local service call Plumbstar

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Reviewed by Beth on 16/6/2025

Really pleased with the service provided, communication was excellent, really thorough and has been really supportive in helping with an issue we had with the equipment we bought. Would highly recommend

Fully qualified & insured plumbing heating & gas engineers We cover all aspects of plumbing heating and gas work to a very high standard from a dripping tap to full central heating systems

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Reviewed by Charlie on 3/10/2018

Spoke to Kevin 5 Minuets after posting the job, we discussed the job, and agreed a price. The guy turned up Bang on time ( this is really important when having work carried out ) I didn't have to clean up ( so many workmen don't have the same level of pride) So it's nice to see one that does. ( well done Kevin ) Job done, and also now have a gas safe guy I can call on for any future work ( already got a job lined up for Kevin ) I'm bumping the rating up to 10 stars.. 5 isn't enough. Thanks Kevin.

Plumbing UK avatar

Plumbing UK

Water Tanks and Immersion Heater

All Plumbing work undertaken. Cistern repairs Tap replacement Radiators Bathrooms Burst pipes Blocked drains etc.

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Reviewed by Donna on 21/7/2025

Kenny done a great job of quickly and efficiently assessing the issue with my toilet system and the quote offered was competitive. He was friendly and professional and I wouldn’t hesitate to use their services again. Highly recommend.

We are happy to say that we are different, going that little bit further, to fulfil all of your requirements. Much of our business is acquired by recommendation and referral and we believe we can offer a price promise of beating any new quotation or, indeed any current maintenance costs that you have with your existing company. We are true experts in all of our fields and pride ourselves on our professionalism. AshTechEngineer With over 8+ experience in all aspects of domestic and commercial with various Of jobs we carry out work for:- -24/7 on - Call services -New Electrical Installation Certifications -Electrical Installation Condition Reports -Electric Vehicle Charing Points -Gas Safe -Plumbing -Electrical - Minor Works -Landlords Certifications -New builds -Rewiring and alterations -Assessment of the electrical safety of wiring -Distribution board replacement and upgrades. -Extra sockets, television and telephone points -Garden power and lighting -Security lighting -Smart Home Automation -Door access systems -Intercom systems -Fire Alarm systems and mains smoke detectors -CCTV installation -Data and telephone installation -TV, satellite and digital TV installation -Rooms & Bathroom Refurbishment -Handyman Works -we provide more services. Thanks for reading this Profile. Would be Pleasure Doing Business. Please Feel Free No obligation Quote.

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Reviewed by Lewis on 29/12/2024

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 Jennifer on 9/6/2025

Speedy response. Drew turned up as arranged, assessed the job and gave a price. He worked there and then and, although the task was more difficult than anticipated, he worked on to complete it and didn't increase the price.

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.

Offering complete plumbing service from small jobs to full bathroom suites. Covering South London and Surrey.

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Reviewed by Charles on 9/10/2024

F Schmitten heating and plumbing Handyman. Radiators, taps, kitchens, bathrooms and everything plumbing related, big on integrity, efficiency and value for money, also happy to help where your DIYskills end with handy tasks like furniture assembly or mounting that TV properly

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Reviewed by Collins on 21/7/2025

Top guy- he’s diligent and charges reasonably. I will recommend any day. very friendly and respectful. bonus tip: he’s too tall to reach heights, he doesn’t need a footstool

An accomplished business where customer needs comes first. We are a dependable team with 25 years experience. Our aim is to attain positive communication with our customers as well as providing reasonable prices for all our clientele. Our specialties expand to various qualities, and we are profoundly able in achieving and carrying out plastering and rendering, painting, boiler installations, unvented cylinders, gas safe checks, bathroom renovations and all home improvements. Collectively, our main goal is to ensure our customer is content and that our work reaches their full expectations.

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Reviewed by Chandrakant on 14/4/2025

An appointment was rearranged for Lewis and his Adrian to come and give me a quote for my driveway. They arrived on time.

EV PLUMBING LTD avatar

EV PLUMBING LTD

Water Tanks and Immersion Heater

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Reviewed by Kevin on 16/2/2025

Nick knew his stuff. Sorted the new shower fitting. He did everything he could to match the colours we have when patching the holes made by the previous fittings. Best of all he tidies up after himself..

BEN Plumbing LTD avatar

BEN Plumbing LTD

Water Tanks and Immersion Heater

Emergency Expert Plumber • Servicing • Burst Pipes & Leaks Plumber - Bathrooms and kitchens - Taps, toilets, sinks, showers etc - Radiator • Blocked Sinks, Toilets, Drains • Domestic & Commercial Work Repairs radiators

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Reviewed by Martin on 14/2/2025

My name is Michel Carvalho and I am the owner of MDC Property Services Ltd. We offer high quality kitchens, bathrooms and full property refurbishments heating and plumbing around the London area. With 20 years of experience working in the trade, rest assured that we will do the upmost to fulfil your expectations and make your project a reality. Our returning customers have always commented on our excellent working ethic, great organization and good time keeping. If you are looking to transform your property or simply upgrading your existing kitchen or bathroom give us a call for a free no obligation quote. We look forward to hearing from you!

DCN avatar

DCN

Water Tanks and Immersion Heater

20yrs in the trades qualified plumber leaks, drips and blockages no problem all aspects of building works and maintenance considered.

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Reviewed by Heran on 25/1/2025

Scheduled to come to my property the next day to fix boiler. Assured me that he would appear. Took me 4 hours by coach to come to my property in London next day only to be told that he could not do it. Very unethical. Cost me £500 per day time off as an IT contractor + £70 national express coach return ticket and waste of time. This guy named Daniel quoted slightly lower than others but I guess you get what you pay for - I would not use sole trader like this next time due to how unprofessional they can be.

With 25 years experience in the heating and plumbing trade any job can be completed at a exceptional standard at our clients needs to spec ! we cover all aspects of plumbing and heating , local friendly reliable and efficient ! much training has been completed over the years since 1999 as follows , CITY & GUILDS - qualification in plumbing & heating . SPANSET - working at height safety . CSTS - health & safety. IOSH - working safely. NIC EIC - installation of appliances & equipment. SAYVOL - legionella awareness. UKATA - asbestos awareness training. Anything from a dripping tap to complete refurbs of bathrooms kitchens and radiator upgrades is just some parts of what we do . Handyman service also provided to clients requests at high standards always We also offer a building team to hand to get all your renovations completed to high standards always . The Team are for you day and night 24HR .

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Reviewed by Dennis on 2/7/2025

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