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"Did an amazing job at fitting my mirror, ordered the wrong mirror but he went above and beyond and made it work and it c..."
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"Showed up as expected, quick assessment and fix. Hopefully won't require a call back."
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"Came on exact time as committed and completed the job well"
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"Very efficient and fast. Accommodated all my requests. Pleasure to have him doing the work."
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"He completed the reach as requested and was polite and helpful"
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"I can see why this man has 5-stars. Unbelievable service and attitude. Happy to do whatever it takes to get the job done..."
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"Alejandro was great. Good communication, arrived on time and carried out the work as asked."
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"Excellent work by James. Took him 10 mins to fix the issue I had. Very friendly also "
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Recent Hot Water System Installation & Repair reviews
Anthony helped me checking and proposing solutions for my boiler issue. His professionalism and attention to detail were seriously impressive. Definitely recommend his service! If you need an Plumbing/Heating Engineer, he's the one to call!
Gravity water heater only boiling hot water
£5
Jack was punctual, polite with great communication. He was able to efficiently identify the problem and resolve it.
Fix the hot water from my shower
£120
Great Job! Was able to come the same I posted the job. Installed instant hot water tap in my kitchen with no issues or bother. Great communication and very knowledgeable tradesman. Highly recommend. A*
Install hot water tap
£120
Right guy for the job. Sorted it really quick.
Boiler engineer. No hot water.
£5
Very knowledgeable guy, did the required job efficiently. Will be using his services again in the future.
Hot water not working
£65
excellent job. quick and clean. couldn't have asked for more.
Stiff hot water handle on kitchen tap, loosen or replace it.
£50
What's the average cost of a Hot Water System Installer
£84 - £150
low
£84
median
£120
high
£150
Average reviews for Hot Water System Installation & Repair Services
based on 78 reviews
4.85
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Why hire a hot water system technician through Airtasker?
If your taps, showers, or baths have run cold and you lack a working heating system, there’s now a quick, hassle-free way to book an installation for a hot water tank. With Airtasker, you no longer have to rely on baseless referrals and uncertain advice. Taskers are highly skilled and equipped to handle all your heating needs, whether you require vented or unvented cylinders.
To get started, post a task on the platform, including your location, cylinder details, and how soon you need the hot water system installation. Expect to hear from available plumbers and specialists who willl reach out with quotes for you to consider. Airtasker also makes reviews and ratings accessible, so you can choose a Tasker with the right expertise and attitude.
Once you accept an offer, you can rest easy knowing your Tasker will get your hot water installation sorted in no time!
Offers in no time
Local, skilled pros
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Top Hot Water System Installation & Repair related questions
No need to provide tools or equipment. Your Tasker will arrive with everything needed for the job. As for the cylinder, it’s up to your agreement with your hired plumber whether you’ll provide it or they’ll source it for you. Make sure you’ve discussed this prior to the actual installation day.
The installation process, from the area inspection to the installation itself, can run between one to three days. If there’s no underlying issue to address, it could be completed within a single day.
Yes! If you run a business and have more jobs than you can handle, feel free to hire Taskers to assist you. Discuss the scope of work and the skills you need when posting a task. That way, it’s easier to match with suitable experts.
Installing a hot water system yourself isn’t ideal. This type of job involves compliance with UK building regulations and safety requirements and requires proper certification. Unless you’re a certified plumber or specialist, you may be better off booking a qualified expert through Airtasker instead.
The size of the system you need depends on the number of people in your household, plus how much they use hot water. A good rule to follow is to allow for 30–40 litres of hot water per person for a gas system or 55–60 litres for an electric system. Consult your hired plumber for an accurate recommendation.
You may still have hot water for a short period. Typically, in a power cut, the water will remain warm for one to two hours. But this largely depends on your usage, as well as the temperature outside.
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Suggested reads about Hot Water System Installation & Repair
What do hot water system installation services include?
A complete hot water system installation service covers everything required to set up a safe, reliable system in your home. This service includes the following steps:
Inspecting the area
The installation begins with a detailed assessment of the chosen spot for your tank and its components. The plumber will ensure the area can support the cylinder’s weight and meets all local building regulations. If the space is inadequate, they can help you find a suitable alternative location for the system.
Preparing for the hot water system installation
Once the location is confirmed, your plumber will prepare for the installation of the hot water tank. If needed, they may create a reinforced platform to support the weight of the tank. You can also hire a carpenter to work on this separately to lessen your plumber’s load.
Before proceeding with the installation, your Tasker will shut off the water, gas, or electricity, as necessary. They will then measure the area and cut pipes or wires to the right sizes. They may also have to cut holes into walls or floors for the pipework.
Installing the cylinder
When preparations are done, your plumber will set the cylinder or tank in its designated position. They’ll carefully avoid damaging any components or nearby pipes during this stage.
Fitting the components
Once the cylinder is installed, your Tasker will attach pipes, wires, and important components like the Temperature and Pressure Release valve, expansion vessel, and immersion heater. You can expect them to strictly follow UK regulations and best practices to ensure the system is safe and fit for long-term use.
Testing the system
After the installation of the hot water tank, your plumber will test the entire system. This is to check whether hot water flows smoothly and at the correct pressure through all taps and showers. Any issues with temperature or pressure will be addressed right away. This process will be repeated until the system works without fault.Â
With your hot water now sorted, why not consider making your home an even more comfortable place to live in? Insulation installers are also available on Airtasker to help you achieve year-round warmth while lowering those energy bills.
Recent Hot Water System Installation & Repair tasks
Boiler working and heating radiator but no hot water
£250
Wylde Green, West Midlands
28th Oct 2026
The baxi boiler is working for heating function but not for hot water
Replace vented hot water cylinder and fit loft water pump
£10
Rickmansworth, Hertfordshire, WD3
28th Oct 2026
Looking for an experienced, certified plumber to replace a vented hot water cylinder and install a water pump in the loft. Please start with an initial consultation to assess the job and give a firm quote. I’d like the work done within the next couple of days. Local plumbers please
Radiators Not Heating, Hot Water Working – W2 Paddington
£65
Paddington, Greater London, W2
28th Oct 2026
Looking for an experienced heating engineer to inspect a heating issue at our property in W2, Paddington, London. The hot water is working normally, but the radiators are not heating up, despite the thermostats being switched on. We need someone to diagnose the issue and, if possible, fix it during the visit. Budget: £65 for the initial inspection. Ideally looking for someone available today. Please confirm your availability. Thank you!
Michael was on time, efficient and did great work!
Hot water fault
£45
Hackney Wick, Greater London
25th Oct 2026
Need a G3 qualified engineer with electrical skills to fix a recurring hot water fault in my Hackney Wick flat. Megaflo unvented cylinder on a communal heat interface unit, no gas. The timer shows ON but the pump stays dark.
Leak at a hot water distribution pipe, need to fix the leak
£150
New Town, Berkshire
24th Oct 2026
Need to identify and fix the hot water distribution pipe leak at our apartment in Huntley Wharf
Radiator cold and no hot water
£75
North Watford, Hertfordshire
24th Oct 2026
I need someone to get radiators and water hot
No hot water
£70
Worcester, Worcestershire
23rd Oct 2026
I changed the immersion boiler water heater timer and suddenly it's not heating,no hot water, please inspect and fix water boiler and/or timer
Need help installing Andris Lux 15L water heater
£50
West Kilburn, Greater London
22nd Oct 2026
I need someone to help us install a water heater. Its the Andris Lux 15L Under Sink Water Heater.
Replace my hot water/underfloor heating actuator
£40
Wandsworth, Greater London, SW18
22nd Oct 2026
I have an old and faulty actuator for my boiler/underfloor heating systems that needs to be replaced. I'm holding the new one in my hand, it needs to be installed onto a brass body and also its electrical wires need to be connected to the green connector on the bottom right hand side of the picture
Heating and hot water not working properly radiators feels very cold
£45
Showell Green, West Midlands
21st Oct 2026
Heating and hot water not working properly. Boiler temperature shows between 35-45. Need someone/engineer to find the real problem and sort it.
Insulate hot water pipes
£75
Tewin Wood, Hertfordshire
17th Oct 2026
Insulate hot water pipes to save room getting hot
Fix and replace if needed sensor in shower for hot water
£50
Harringay, Greater London
16th Oct 2026
Sensor that triggers hot water has gone water only in the shower keeps going cold
Amazing thanks so much
Boiler Repair – No Hot Water or Heating
£100
Luton, Kent
15th Oct 2026
Hi, i, I’m looking for a Gas Safe registered engineer to come and check my boiler, please. I’m having an issue where the boiler appears to be switching on, but I’m not getting proper hot water from the taps, and none of my radiators are heating up either. I’ve tried adjusting the thermostat, but the issue is still there. I also have a hot water tank, so I’d like someone to inspect the boiler and heating system to identify what’s causing the problem and advise on the repair. Please could you let me know your earliest availability and the total cost for a call-out and initial diagnosis, before any repair work is carried out?
Urgent - got a leak that looks like it’s coming from a hot water tank
£30
Kidbrooke, Greater London
14th Oct 2026
Have a slow leak coming from the hot water tank (it appears) or piping under the sink in the kitchen.
Job Title: Repair Hot Water Pipe/Tap for Bathtub
£60
Standard Hill, Nottinghamshire
12th Oct 2026
I have a bathtub with two separate taps/pipes, one for hot water and one for cold water. The cold water is working, but the hot water is not working. I need a qualified plumber to inspect the issue and repair it. Please provide a quote including labour and any parts required. Please let me know your availability and estimated cost.
Hot water issue
£200
Sands End, Greater London, SW6
12th Oct 2026
We have hot water issue for a while and the previous plumber said it was due to the pump. Also the immersion all of a sudden stopped. Need fixes for both
Plumbing - my washing machine is connected to the hot water pipe
£100
Cranley Gardens, Greater London
10th Oct 2026
Our machine machine is connected to the hot water pipe - we need it moving over to the cold pipe
Excellent all round ... quick communication, attended the same day, great workmanship - polite and friendly - could not recommend enough - thank you Johnson
No hot water pressure is down in the boiler
£100
Lisson Grove, Greater London
6th Oct 2026
No hot water and pressure is down.
Highly recommended as a plumber, provide a efficient service and reliable
Boiler - as central heating isn't turning On (but hot water is)
£80
Vicarland, Lanarkshire
4th Oct 2026
We use a BeSMART controller that is connected with the boiler, but when clicking the heating mode the flame doesn't turn on. Hot water is working fine in all taps.
Kitchen hot water tap is very hard to turn. Need replacing / repair
£40
Hounslow Heath, Greater London
28th Aug 2026
Downstairs kitchen hot water tap handle is very hard to turn and open. Needs fixing or replacing. The ceramatic valve may need replacing. (Not sure if this is the cause but looks rusty.)
Came on time and fixed our issue. I highly recommend him. Thank you for coming down from Croydon. All the best.- Simrun