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

Find a professional hot water system contractor in Central London

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4.0

Great rating - 4/5 (13330+ reviews)

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Recent Hot Water System Installation & Repair reviews in Central London

Airlock diagnosed and cleared.

Hot water stopped coming from Taps n showers

£60

Tony was great, super helpful

Hot water not working

£60

excellent job. quick and clean. couldn't have asked for more.

Stiff hot water handle on kitchen tap, loosen or replace it.

£50

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

Very efficient and friendly.

Plumber to fix hot water issue

£30

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

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

£90 - £150

low

£90

median

£120

high

£150

Low, median and high bar chart distribuiton

Average reviews for Hot Water System Installation & Repair Services in Central London

based on 36 reviews

4.83

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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. 


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 in Central London

Vailant water heater F.75 error

£250

Highbury, Greater London, N5

6th Mar 2026

Water heater issue as outlined

Water heater vaillant f75 error

£200

Canonbury, Greater London

6th Mar 2026

Water heater Vailant ecoFIT Pure has issues, water pressure went down, and now F.75 error I need someone to fix

Bathroom hot water not coming

£60

Ratcliff, Greater London

17th Feb 2026

My bathroom hot water is very low

Bathroom heater and hot water tap not working

£200

Nag's Head, Greater London

17th Feb 2026

Hot water tap dripping, and the radiator valve is faulty.

My water pump hot water is very low

£60

Ratcliff, Greater London

9th Feb 2026

I have a water pump, but the hot water is very low, doesn’t even fill up a bath

Water heater repair

£500

Marylebone, Greater London

4th Feb 2026

The elements are leaking with the water touching the electrics it’s cause the mcb to trip, the spur switch is burn out, ( please see picture ) The 210 litre cylinder will need draining down to replace the elements due to the rust build up this has welded the elements which will prove hard to remove

Electric water heater pipe repair

£150

Nine Elms, Greater London, SW8

2nd Feb 2026

Hot water pipe and coupling to be installed on electrical water heater. New plastic Leakage Firewall needed to be installed and the old one removed

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.

We got it sorted in the end

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.

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

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.

He did a good job. Would recommend

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.

Install a small Ariston Aures 9.5 kW instant water heater

£80

St Luke's, Greater London

11th Dec 2025

Install an Ariston Aures 9.5 kW instant water heater to supply hot water to two adjacent toilets, each equipped with a single hand-wash basin. The toilets are located next to each other, with minimal distance to the points of use. • Hot water is required only for hand-washing. • Simultaneous use of both basins by two people is possible. • The installer should connect the water heater so that it provides hot water to both outlets.

Mixer tap needs changing for hot water to work

£100

Notting Hill, Greater London, W11

7th Dec 2025

Mixer tap in bath needs changing for hot water to flow..i have already bought a mixer

Hiu not circulating hot water to rads

£120

Peckham, Greater London, SE15

27th Nov 2025

Need a hiu speaclist not PLUMBER Rads not working need hiu engineer its not an airlock and all lockshields are open plumber said its hiu problem he checked everything already the hot flow pipe is hot but hot reuturn pipe is cold theres 5 rads in total only 1 is hot but not fully

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.