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

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

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

Awesome service can't reccomend highly enough!

Hot water isn't working

£50

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

£83 - £150

low

£83

median

£120

high

£150

Low, median and high bar chart distribuiton

Average reviews for Hot Water System Installation & Repair Services

based on 75 reviews

4.84

68
4
2
0
1

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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

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Local, skilled pros

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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

Diagnose and repair boiler — no heating or hot water

£60

Stanmore, Greater London, HA7

16th Sep 2026

We have had no hot water or central heating for several weeks and need someone to diagnose and repair the system. We have: Baxi boiler Elson Zircon 210i, 210-litre indirect unvented hot-water cylinder Google Nest controlling the heating and hot water Please only respond if you are experienced with Baxi boilers, unvented hot-water cylinders and motorised valves/central-heating controls. Will provide any pictures required.

Hot water stopped working. No light or writings legible

£80

St Paul's Cray, Greater London

16th Sep 2026

Hot water not working. Display unit on boiler is off. Can’t see light or writings on it

Check and fix boiler – hot water not working

£80

New Barnet, Greater London, EN5

15th Sep 2026

I need a qualified boiler/heating engineer to check and fix my boiler, as the hot water is currently not working. Ideally, I’d like the problem diagnosed and repaired during the visit if possible. If parts are needed or there will be additional costs, please let me know before carrying out the work.

Kitchen tap no hot water

£50

Hednesford, Staffordshire

14th Sep 2026

I have no hot water coming from my kitchen tap

Replace hot water tap with Quooker

£150

Longlands, Greater London

14th Sep 2026

Removal of the current hot water tap - unsure of the brand and installation of Quooker tap - used at our previous property

Plumbing 2 sinks + 10L water heater + waste in shed

£200

Old Coulsdon, Greater London

11th Sep 2026

I’m fitting out a small garden prep kitchen in Coulsdon and need an experienced plumber to complete the water and waste connections. Everything is located very close together, so pipe runs are short. Scope: * connect incoming cold water supply * install hot/cold feeds to 2 sinks * connect a Flomasta 10L undersink stored water heater * fit suitable isolation valves * install the supplied pressure-relief valve and discharge arrangement in accordance with the manufacturer’s instructions * connect sink wastes and traps * connect both sink wastes into the existing waste outlet * surface-mount pipework neatly to the wall * pressure-test and check all joints for leaks The electrical connection to the water heater will be carried out separately by an electrician. I’m happy for the plumber either to supply the small plumbing materials or tell me exactly what to purchase beforehand. Please only respond if you have experience installing small unvented/stored water heaters and pressure-relief discharge pipework. Please quote a fixed labour price and indicate estimated material cost separately

Water heater doesn’t turn on

£50

Maze Hill, Greater London

11th Sep 2026

My water heater doesn’t turn on anymore not sure what’s the cause

Fix Boiler. No display. No hot water or heating. Fan sound on

£30

Forest Gate, Greater London, E7

9th Sep 2026

Hi. My baxi boiler needs fixing. The boiler doesn’t come on. No display and makes fan noise.

Fix my boiler-No hot water

£75

Penge, Greater London

9th Sep 2026

No hot water since this morning. Resetting not working. Flashing red light.Gas service is active. Needed to find issue and repair. Need someone who can provide a job statement

Showed up as expected, quick assessment and fix. Hopefully won't require a call back.

Install water heater downstairs bathroom

£50

Black Friars, Leicestershire

6th Sep 2026

install a Redring RAHW3 3kW instantaneous handwash water heater in my downstairs WC

Plumber needed – leaking Ariston water heater

£50

Braintree, Essex

1st Sep 2026

My Ariston water heater is leaking a small amount of water from the front of the unit. I have isolated it by turning off both valves. I need a qualified plumber/heating engineer to diagnose the source of the leak and repair it if possible. Please assess whether the unit can be repaired or needs replacement and advise on the likely cost. Timing is flexible and I am open to offers.

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

No hot water from kitchen tap

£45

Hednesford, Staffordshire

26th Aug 2026

No hot water from kitchen tap

Boiler needs pressure no hot water

£30

Collier Row, Greater London

23rd Aug 2026

My boiler needs pressure top up, there is no hot water

Came out to us out of hours on a sunday morning, great service very professional and speedy service, highly recommend and will use again if i need a plumber !

Install a hot water tap

£75

Northolt, Greater London, UB5

22nd Aug 2026

I need a hot water tap installed. If you can also do any other odd jobs like hanging things that would also be useful. Thanks

Fit a 4 in 1 hot water tap

£100

St Pancras, Greater London

22nd Aug 2026

Replace exiting regular tap with a new Wodar 4 in 1 hot water tap. Electric socket in place Fit new door seal to Siemens washer dryer. Old seal has already been removed. New gasket on site Replace 1 x back box to switch.

Excellent. By far the best tasker/plumber I have booked. Very quick, efficient and charming.

Shower fittings not producing hot water

£100

Petts Wood, Greater London

14th Aug 2026

Shower fitted 4 years ago. Not used heavily. Water doesn’t get very hot

Repair a shower that is not mixing hot water with cold water

£120

Erith, Greater London, DA8

13th Aug 2026

The shower mixer is not working properly, hot water coming out and not sure if the cold water has been switched off or it is the shower mechanism

Leaky radiator and no hot water F75

£200

Southborough, Greater London

8th Aug 2026

Leaky radiator in bathroom Boiler pressure has dropped F75 error No hot water

What a great guy, quick response to my initial task, transparent. Came out on a Sunday morning when we had no hot water and extremely professional! 5 stars!

Thermostatic bath mixer tape and shower only bring out hot water

£50

Southbury, Greater London

1st Aug 2026

Bath decked thermostatic mixer tap and shower only bring out very hot water so not mixing to desired temperature