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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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we are highly skilled and motivated, and take pride in all work that asw plumbing limited undertake all of our stuff are fully qualified and ensure they are giving our clients a first class services . we are sure that you will not be disappointed with our services.

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Reviewed by Olivia on 18/4/2023

Boualem was brilliant - quick to respond to our post, great communication and came to do the job just a few days later. Arrived promptly, carried out the work to a high standard in just a few hours and is really friendly. Wouldn't hesitate to recommend and will definitely book him again in future.

We are a family run business with lots of experience no job is too big or too small many thanks onestop team

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Reviewed by Alan on 17/9/2025
JRR Contracting Ltd avatar

JRR Contracting Ltd

Water Tanks and Immersion Heater

At JRR Plumbing & Heating, we are your go-to experts for all your plumbing, heating, and home repair needs across the North West of England and North Wales. Whether you’re looking to install a new boiler, need general plumbing services, or require a variety of home repairs, our experienced team is here to ensure your requirements are met with the highest level of professionalism and expertise.

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 Karen on 8/10/2025

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.

Hi, Thanks for visiting R Renforth Plumbing and Heating rated people profile page. We have combined domestic and commercial plumbing in the North East of over 45 years. From leaking taps and even commercial works, we have it all covered. We have hundreds of happy customers and all of our work is completed to the highest standards in the industry. We are also moving into the renewable energy industry and carrying out service and installation on air source and ground source heat pumps. Thanks for visiting our page and call us anytime if you need us for any of the above works. Thanks R Renforth

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Reviewed by linda on 19/1/2024

Would happily use this company again, it wasn’t a big job but but they were happy to do it in a timeframe that suited me. They arrived on time were friendly and polite

We have over 15 years experience in plumbing, refurbishment maintenance, and electrical works. Our electrical engineers are fully qualified and as a NICEIC approved contractor and domestic installer, you can be assured all our work is carried out to the most recent electrical standards and regulations. We are also qualified to test, inspect and issue condition reports and certificates for domestic and commercial installations and for the private rental sector. Our plumbing work is carried out by a City and Guilds qualified plumber holding level 2 qualification in installation.

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Reviewed by Charlotte on 31/5/2023

New consumer unit fitted quickly and neatly, good communication, I would definitely use again.

Welcome to Prominent Heating Services, Covering all aspects of gas engineering, Landlord Gas Safety Certs, Boiler Installations, Boiler Services, Breakdowns, Radiator Installations, Plumbing & all central heating needs. Here at prominent heating we offer transparent prices alongside an excellent quality finish. A team of local gas engineers who aspire to create a high quality company people can trust and rely on. Contact us now with any enquiries we are happy to help!

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Reviewed by Abi on 15/11/2024

Came within 20minutes, did the job quickly and will definitely use again

As a professional and hard-working company, Apexcpm offers a high-level service with a dedicated focus on communication and results.We put our clients first,ensuring our work is carried out with precision and consistent professionalism.Our services include renowned property renovations,garage conversions,kitchen refurbishments,fitted wardrobes,custom designed furniture and much more! Fully qualified with NVQ level 3,qualified & experienced tradesmen who are Gas Safe & NICEIC-approved. Established in 2018, we’re an Uckfield-based family-run business & together,we share over 30 years of experience in the trade.We have an extremely high number of 5-star reviews online, and our testimonials speak for themselves.We are also lucky enough to have a considerable amount of recommendations and referrals thanks to our reputation as a reliable, knowledgeable and highly skilled company.

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Reviewed by Edd on 19/2/2025
3B Joiner avatar

3B Joiner

Water Tanks and Immersion Heater

Over 20 years of experience in commercial and domestic construction projects.

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Reviewed by Lindsay on 1/8/2025

Paul was great. He came out very quickly and dealt with my daughter’s door really well. It needed trimmed down due to carpets having been fitted. The carpet fitting squad couldn’t deal with the door as it wasn’t a standard internal one. It was particularly heavy and had a strong spring chain going into its side. Paul managed it fine. I’m very happy to recommend him.

Knowledgable and skilled bathroom fitters with 8 years experience. We cover all aspects of bathroom renovation from design and build through to completion, including tiling, carpentry and decorating. We ensure our customers are left with a bathroom they love. Plumbing certifications Level 2 and 3

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Reviewed by James on 14/4/2024

From start to finish a really great experience. Professional and friendly. Great advice. Everything done to time and on budget. Thoroughly recommend.

Over 20 years in the trade SVQ level 3 plumber and heating

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Reviewed by John on 26/10/2025

Great job. Very happy with the results. Tommy was very thorough and investigated all potential causes of the problem before supplying and fitting new parts. All work done for the price quoted.

We are a family run business and pride ourselves on a prompt, reliable and friendly service. Fully Insured, time served Tradesmen with over 35 years experience Plumbing and Gas Safe registered. Property Refurbishment Specialists. 24 Hour call outs

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Reviewed by Paul on 10/11/2023

Arrived on time, did a very professional job for a good price, and we are very pleased with the result. We would thoroughly recommend.

We are a family owned bathroom and gas specialist with over 30Years experience in bathrooms and all aspects of gas including installation servicing landlords safety checks and breakdowns.We can help you with all aspects of your bathroom design to install

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Reviewed by Denise Margaret on 2/1/2025

Very pleased with Martins work. He did a thorough check of all the radiators, adjusted the 3 that weren't working, so now there nice and warm, he'll be returning tmrw to replace the valves in 8 of the other radiators. I'll pay the full bill when the work is complete.

All aspects of heating and plumbing LPG GAS OIL

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Reviewed by Richard on 23/5/2024

Arrived on time, work completed professionally.

Hello welcome to J.W Electrical we are a friendly run business. Here at J.W Electrical we would like you to receive the best of the best, quantity and quality answering and questions you may have or any queries we are here to help.

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Reviewed by Lixia on 1/8/2025

Did not give a quote , only spoke on the phone , not confirm what certificate comes with the job , unprofessional Asking for the quote then he says —not interested

"Local plumbing and heating engineer always giving the best finish. With over 10 years of experience in both commercial and domestic property's."

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Reviewed by Philip on 16/10/2025

Excellent response from Aaron. The job was done quickly, professionally and cheerfully at a very reasonable price. I've been looking for a reliable plumber for some time and I would gladly turn to Aaron for my plumbing jobs in the future.

We have been trading for 23 years in plumbing. We offer all plumbing needs. We also have an emergency call out.

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Reviewed by liz on 24/4/2025

Job done efficiently and explained clearly. Prompt appointment.

We are a gas and plumbing company thats been running for a few years , we offer a wide range of gas and plumbing services including emergency call outs around the Oxfordshire area. We take pride on our work and make sure that the costumer is happy and work gets done up to the current standarts

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G.I. Build

Water Tanks and Immersion Heater

Dedicated to our craft. We cover all aspects of building work including: - home extentions - renovations - conversions - plumbing and heating - kitchens - roofing - all general building work

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Reviewed by Mike on 29/4/2022

Gary and his team are very professional and did an excellent job. Gary takes a great pride in his work and does all the preparation necessary to ensure a smooth and efficient job. Had extra work done re rendering, driveway and patio as their work was so good. Would recommend

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