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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Best rated Hot Water System Installers near me

Recent Hot Water System Installation & Repair reviews in Central London

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

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

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

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

£90 - £170

low

£90

median

£125

high

£170

Low, median and high bar chart distribuiton

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

based on 37 reviews

4.84

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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

Shawer pump not working on hot water

£50

Lower Holloway, Greater London, N7

4th Jun 2026

When you switch the hot water in the shower, the shower pump does not kick in it works fine when the cold water is on Salamander Pumps

Repair shower as not getting hot water

£25

Haggerston, Greater London, E2

3rd Jun 2026

Shower is not getting hot water but everywhere else is. It's probably a valve issue. Can someone have a look and help fix.

Electric hot water cylinder installed

£500

Shacklewell, Greater London

25th May 2026

Looking for someone who can install and self-certify a hot water cylinder in our garden room. As this is for secondary use we're looking for around 100 litre tank. Nothing fancy as we're keen to keep costs low due to it being a garden room. The electrician has already set up the fuses and wiring ready to be connected. We are working on the pipework for the bathroom setup over the next couple of weeks so can also build the waste for the hot water cylinder if that is helpful.

Fix water heater

£100

Westminster, Greater London, SW1A

20th May 2026

Fix water heater damaged

Install a hot water tap under kitchen sink + replace garden hose pipe

£160

North Kensington, Greater London, W10

18th May 2026

Two tasks 1. Install new hot water tap to replace old one - under kitchen sink -should take 15/20 mins 2. Source and replace garden water tap thats been leaking - 1-2 hours

Really friendly, efficient, & competent!

Fix leaking Ariston hot water cylinder

£230

Barnsbury, Greater London, N1

7th May 2026

Job: Fix leaking Ariston hot water cylinder + other repairs: Need a reliable tradesperson to: • Replace the immersion heater element and gasket on our Ariston unvented cylinder (clearly leaking from the flange) • Fix the water temperature — it’s coming out too hot from the taps. • Check and repair a noisy washing machine (loud noise, possibly stuck drum) Location: Utility Cupboard. Power isolator and water valves are easy to access. Price includes all labour and parts. Please only apply if you’re comfortable with unvented cylinders. Ready for someone this week — let me know your availability.

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.

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.

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.

Water heater removal and move in small apartment

£750

Wapping, Greater London, E1W

25th Mar 2026

Remove old electric water heater, install new(relocated)

Great guys, very efficient and great plumbers.

No hot water - plumber available tomorrow?

£70

Lea Bridge, Greater London

23rd Mar 2026

No hot water in flat. All taps - cold water running just fine

Fix Leaking Hot Water Cylinder Pipe & Wall Damp

£130

South Hampstead, Greater London, NW6

21st Mar 2026

Experienced plumber needed for unvented/mains-fed hot water cylinder leak (white tall model in airing cupboard). White plastic overflow/vent pipe on outside wall leaking, causing damp patches and moss growth. Tasks: inspect/diagnose source (valve/immersion/seal); repair/replace parts; check system pressure, fix minor wall damage, tidy up; test hot water/immersion.

Great professional, excellent communication all along the job with a good work ethic. He came on time and updated me on every single step. Job was done in the end and I thank him for that !

Boiler man mains boiler hot water on and off

£100

Leyton Marshes, Greater London

11th Mar 2026

Main boiler water hot and cold

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

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