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"Tony properly identified the issue of my boiler, provided full description of the problem and offered the replacement of..."
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"Great job! Definitely recommend! "
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"Sound job, quick and well prepared. "
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"Quick to sort, really helpful, knowledgeable and very tidy."
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"Joe is a very sweet guy who clearly knows his stuff. He was very quick and no nonsense and got the job done at a reasona..."
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"Excellent service. Very happy with all the work done and the efficiency. Much appreciated. Thank you."
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"Great work. Took his time to ensure the service was delivered well and that I was happy with it. "
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"First time using Airtasker and would certainly use Liam again, very knowledgeable and effiecent. Thanks :) "
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Recent Hot Water System Installation & Repair reviews
Airlock diagnosed and cleared.
Hot water stopped coming from Taps n showers
£60
Great communication and job completion
Hot Water Investigation
£140
Lovely chap and able to make a speedy fix to the problem.
Plumber to investigate and fix why hot water is coming into the toilet
£200
Very efficient and friendly.
Plumber to fix hot water issue
£30
Anthony has been very professional and kind. He is very careful in his work. I would recommend.
Hot water maintenance
£100
Akbar was on time, did the best he could with my clogged shower mixer, manage to find a short term fix but will require a brand new mixer to be installed as a next step. Thanks for the support
Hot water shower
£100
What's the average cost of a Hot Water System Installer
£81 - £140
low
£81
median
£120
high
£140
Average reviews for Hot Water System Installation & Repair Services
based on 68 reviews
4.84
What is Airtasker?
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Statistics from the most recent tasks on Airtasker over the last 4 years.
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
Real reviews
Flexible pricing
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 codes and safety regulations and requires a licence. Unless you’re a licenced 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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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
Qualified Plumber - diagnose, report with evidence new units installed
£30
Upper Edmonton, Greater London
23rd Jan 2026
Require diagnosis with photo's/video of water flow, any issue(s) and video(s) of newly installed Triton shower Unit & Ariston kitchen sink unit WORKING with HOT water ! Qualified Plumber - Tottenham area
Supply & fit a new Ariston under counter water heater
£400
Shoreditch, Greater London, EC2A
21st Jan 2026
Our current Ariston water heater has died, we're looking to replace the unit with a new one, removing and disposing of the old one.
Plumb sink in and electric water heater
£200
H Igher Broughton, Greater Manchester
20th Jan 2026
I have had a water feed installed ready for a single kitchen sink freestanding I need a water heater fitting to produce hot water socket moving and a new light fitting
We have only 7 minutes of hot water in the shower.
£50
Earl's Court, Greater London
19th Jan 2026
Studio flat has only 7 min of hot water, we would like to have continous hot water, or at least 20, 30 min. There is a 100 litres water tank and no boiler available.
Highly recommend, very attentive
Shower thermostatic cartridge likely seized. No hot water in shower.
£35
King's Cross, Greater London, N1
19th Jan 2026
Shower tap doesn’t produce hot water (limited flow when turned to hot). Normal hot water elsewhere. Most likely seized thermostatic cartridge.
Kamstrup boiler no hot water
£100
Croydon, Greater London
18th Jan 2026
Its a electric boiler need some who knows how they work qs i do not have hot water
Plumbers only - fix hot water issue
£70
St Luke's, Greater London
16th Jan 2026
Need a plumber to fix hot water - shower and taps all run cold so it’s not the appliances - the heat pump is also working and was just replaced two months before
Water heater checking
£50
Marylebone, Greater London
16th Jan 2026
I have a megaflo unvented cylinder. It currently works when I turn on the boost but it doesn’t have hot water when i leave it on timed. Would like to get a third party opinion whether the cylinder is working. Just needs checking.
Hot water not working
£80
Nine Elms, Greater London, SW8
11th Jan 2026
Hot water not working, boiler is working for house hearing but not forgot water
Plumber to check a heating/hot water issue
£75
Festubert Place, Greater London
8th Jan 2026
I've got a couple of heating/hot water issues. 1) Two of the radiators in my flat aren't giving out any heat, even though the rest of the radiators are working fine 2) The hot water in one bathroom doesn't get properly hot, unlike the hot water in the other bathroom (which gets very hot)
Install an inline strainer on hot water outlet of boiler
£150
Highbury, Greater London, N5
6th Jan 2026
My boiler hot water outlet needs an inline strainer to be installed. The pipes are quite easily accessible.
No hot water
£75
Coalmakers Wharf, Greater London
1st Jan 2026
Our boiler is not producing hot water. This is a new boiler. Can someone assist
Shower leaks when hot water tap opens
£50
Norris Green, Merseyside
30th Dec 2025
Shower head leaks when not water tap opens
Readjust my shower mixer for hot water
£50
Spitalfields, Greater London
30th Dec 2025
New shower was installed, hot water worked fine initially, but the shower mixer needs readjustment as there is less hot water and the temperature controlling dial is loose
My hot water cylinder isn't heating up / no hot water is coming.
£100
Bounds Green, Greater London, N11
22nd Dec 2025
The water cylinder in my flat isn't heating up / producing hot water.
Take a look at why hot water is not reaching shower
£200
Chilworth, Surrey
22nd Dec 2025
One of our power showers only runs cold. All other taps in the house get hot water normally. We have a system boiler with a hot water cylinder. Please check why the hot water is not reaching the shower, including hot feed pipes, isolation valves, airlocks, or blockages. The shower itself runs at full pressure but never heats.
Replace hot water cylinder with new
£25
Goodmayes, Greater London
19th Dec 2025
replace old Ariston Classico direct hot water cylinder
Successfully replaced stubborn immersion heater element
Heater not working. Hot water cylinder and electric
£40
Old Trafford, Greater Manchester
17th Dec 2025
Heaters in 1 bedroom flat not working. It is an all electric Hot water cyclinder. I will need someone to look at this tomorrow on the 18th of December.
Hot Water in Taps
£80
Peckham, Greater London, SE15
30th Sep 2025
There is no hot water in all the other taps in the house aside the kitchen tap.
Very patient man who took his time to understand what needed to be done.
Disposal of hot water cylinder
£30
Roxeth, Greater London
22nd Aug 2025
Hot water cylinder needs to be disposed today.
I was very impressed with the service provided for the removal and disposal of my old hot water cylinder. The team was punctual, efficient, and carried out the work with great professionalism. Everything was completed safely, neatly, and with minimal disruption. I highly recommend this company to anyone in need of reliable and hassle-free cylinder disposal.