A professional helping with water heater installation and repair.
A professional helping with water heater installation and repair.

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4.0

Great rating - 4/5 (13330+ reviews)

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Recent Hot Water System Installation & Repair reviews

Anthony came at short notice on a Sunday. He managed to drain the leaking hot water tank at least, no spare parts so it’s not q. fixed but it’s made safe. Thank you!

Help drain (&/or Fix) leaking hot water tank

£80

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

Tony was great, super helpful

Hot water not working

£60

Jack got the job done quickly and was professional and courteous. I would hire him again.

Fix stiff hot water tap in bathtub

£100

Airlock diagnosed and cleared.

Hot water stopped coming from Taps n showers

£60

What's the average cost of a Hot Water System Installer

£80 - £145

low

£80

median

£120

high

£145

Low, median and high bar chart distribuiton

Average reviews for Hot Water System Installation & Repair Services

based on 73 reviews

4.82

66
3
3
0
1

What is Airtasker?

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Tasks successfully completed

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Average amount of offers per task

49

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Average time to receive offers

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

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Local, skilled pros

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Real reviews

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Flexible pricing

Choose the offer that’s right for you.

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.

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. 


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

Fit a outdoor hot water tap in garden

£100

Halewood, Merseyside

28th Apr 2026

fit a outdoor hot water in my garden

Hot water tap in bathroom has come unloose or broken

£50

Killamarsh, Derbyshire

21st Apr 2026

The hot water tap handle has come off not sure how much more to explain

Service and consultation for unvented electric hot water cylinder

£100

Spring Grove, Greater London

21st Apr 2026

I need a G3-qualified engineer to inspect and service an unvented hot water cylinder in an all-electric flat. The unit is underperforming and running out of hot water very quickly (after one sink of dishes and two showers). We installed a water softener a year ago, but performance has not improved. I need to know if the unit can be salvaged with a service or part replacement, or if a full replacement is necessary. If it needs replacing, I'd like a consultation on whether to stick with a cylinder or switch to an electric instantaneous heater for the kitchen and bathroom.

Hot water is not working

£100

Park Royal, Greater London, NW10

21st Apr 2026

we need to fix the boiler that has these issues flue corroded, flue terminal broken, boiler has leaking hardware, corrosion internally, pump leaking, aav leaking. I need to know before how much this will cost to be fixed.

Descale, Removing Sediment, Cleaning Hot Water Tank

£100

Isle Of Dogs, Greater London

18th Apr 2026

I can see some water colour changes in the hot water, it may be a bacteria or rust inside the water tank. I want it to be serviced, cleaned properly witch checmicals as much as possible

Central heating issue. Hot water works but no heating.

£150

Glenfield, Leicestershire

18th Apr 2026

Heat only boiler. Pump works. Actuator changed. Hot water works fine, central heating will not come on.

Urgent: Boiler issue. No hot water. No heating.

£85

Lower Holloway, Greater London, N7

17th Apr 2026

Hi, I need an urgent visit from a Gas Safe Registered engineer to fix my Vaillant ecoTEC Plus boiler. ㅤ Currently, we have no hot water. The boiler display is showing a pressure of 2.8 bar, which is in the warning zone. I have tried to reset the unit, but it is not firing up. ㅤ Requirements: • Must be Gas Safe Registered (please provide your ID number in the offer). • Experience with Vaillant ecoTEC models. • Task involves: Safely reducing system pressure, checking for a faulty filling loop or expansion vessel issue, and ensuring the boiler restarts correctly.

Hot water mixer in shower has gone

£70

Ashford, Surrey

12th Apr 2026

My boiler works fine, however the hot water temp fluctuates now and it's either really hot or extremely cold. It's frustrating and hard to guage the right temp to use the shower etc

Fix low hot water pressure (electric system) – kitchen tap only

£75

Furzedown, Greater London, SW17

11th Apr 2026

Fix low hot water pressure (electric system) – kitchen tap only Description: I need someone experienced with plumbing / electric hot water systems to fix low hot water pressure in my kitchen tap. Details: Property: Flat in Tooting Issue: Hot water pressure is low in the kitchen only Cold water pressure is fine Bathroom hot water appears normal System is electric (not gas) What I need: Diagnose the cause Fix the issue if possible during visit Requirements: Experience with electric water heaters / plumbing Must bring own tools Please mention relevant experience in your reply Flexible on timing but ideally ASAP. Please quote for labour and mention if parts would be extra.

Hot water in the en suite shower isn’t getting hot

£100

Temple Mills, Greater London

11th Apr 2026

Hot water dial is a bit broken but even before that the hot water wasn’t getting hot. Other taps in the property are fine

Fix extractor fan in bathroom & manage hot water for shower

£150

Nag's Head, Greater London

11th Apr 2026

The extractor fan for the bathroom doesn’t seem to be working which’s causing humidity to form in the adjacent bedroom (mould spores under mattress as a result). Need the extractor fan to be functional & to turn off with a timer. I’m not sure exactly where it’s located though. (Flat is currently tenanted- so sadly I can’t be there to assist). Hot water temperature needs to be adjusted in the shower… Tenants are saying that the water is scolding hot.

Install a hot water tap under kitchen sink

£80

North Kensington, Greater London, W10

8th Apr 2026

Install new hot water tap to replace old one - under kitchen sink -should take 15/20 mins

Hot water is not coming from the boiler

£80

Miles Platting, Greater Manchester

4th Apr 2026

When you switch to the boiler no hot water is coming from the tap

No hot water

£100

Oak Hill, Hampshire

3rd Apr 2026

Glow worm lexicon GC showing error message F22

No hot water in shower head

£20

South Bromley, Greater London

30th Mar 2026

Bath tap gets fully hot, but shower stays only lukewarm even with the shower head removed. Likely fault with the concealed mixer diverter or thermostatic cartridge. Looking for diagnosis and front-access repair/replacement.

Fix Boiler - No Hot Water

£40

Brockhurst, Hampshire

30th Mar 2026

Water Inlet valve on the boiler Has seized shut / stuck off, so water isn’t getting into the boiler, so no hot water currently.

Increase pressure for hot water

£30

Cranbrook, Greater London

29th Mar 2026

Adjust a water pipe to increase water pressure

Mira electric shower hot water fix

£40

Hitchin Square, Greater London

19th Feb 2026

Our electric shower has just randomly stopped working and need someone to come and take a look at it urgently. I’ve bought a new shower head as I initially thought the issue might have been he hose but after installing it stiill issues - need someone to coome asap - thank you

Had an issue with our electric shower and needed someone to come asap, posted the job and in less than an hour managed to book Gulzar to come the same evening, very polite, punctual and really knew what he was doing, immediately knew what was wrong but doouble confirmed the issue through testing. Highly recommend him - thank you

Fix hot water shower tap

£60

Isle Of Dogs, Greater London

5th Feb 2026

The hot water tap on my shower has stopped working properly. When I twist the hot water handle, only a very small amount of water comes out. Cold water still works normally. This started recently 2 days ago, no visible leaks. Looking for someone to inspect, repair/replace the tap or internal valve if needed.

great work and very friendly

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