Boiler Installation London

Need a new or replacement domestic natural-gas boiler in London? Plumbing 4 London assesses the existing system, hot-water demand, controls, pipework and installation access before recommending a suitable route.

Boiler installation based on the property

Existing-system assessment

We review the current boiler, cylinder where present, controls, flue route, pipework and hot-water demand.

Suitable boiler specification

The proposed type and output are considered against the property and household requirements.

Verified Gas Safe scope

Applicable domestic natural-gas boiler work is handled within the verified Gas Safe registration scope.

Transparent pricing

The installation scope and price are explained before work starts, with no hidden costs.

Guaranteed workmanship

Our installation workmanship is guaranteed; the applicable terms are explained with the proposal.

Boiler types considered during assessment

Combi boilers

A compact option providing heating and hot water without a separate hot-water cylinder; suitability depends on demand and water performance.

System boilers

Used with a hot-water cylinder and often considered where stored hot water and multiple outlets are required.

Regular boiler arrangements

A potential replacement route for compatible traditional systems, subject to assessment of tanks, cylinder and pipework.

ATAG boiler options and manufacturer cover

ATAG is one manufacturer option that may be considered after the property and system have been assessed. Product availability, model suitability, efficiency data and manufacturer cover can change, so the current specification and registration conditions are confirmed in the written proposal.

Model selected for the property

The boiler must suit the heating load, hot-water demand, available space and existing system.

Current manufacturer terms checked

Any manufacturer guarantee is confirmed for the exact model and its registration and servicing conditions.

Compatible controls

Control options are considered as part of the installation so the system can be used appropriately.

System preparation

The existing system condition is reviewed and any cleaning, protection or alteration requirement is explained.

Handover and documentation

Controls, operating information and applicable registration or guarantee steps are covered at handover.

The final recommendation is based on the property, not a brand headline. We explain the proposed model, installation scope, current manufacturer terms and ongoing servicing requirements before work is booked.

What our clients say

We take pride in providing top-tier property maintenance services to clients throughout London.

    
 
 
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   Hannah 
 
 
 
 Trustindex verifies that the original source of the review is Google. Used Alex as a local based plumber to fix an issue with the taps. He knew what the issue was likely to be and came prepped on the first visit, but sadly after opening the taps up it was a full replacement required, but Alex ordered the replacements and fitted the new taps a week later quickly and to a high standard.
  
 
      Posted on Google  
   
   D J 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent job, very professional, comes quickly to fix the issue and is transparent on price and expectations.
  
 
      Posted on Google  
   
   Domas Dregva 
 
 
 
 Trustindex verifies that the original source of the review is Google. Fast, professional, highly recommend
  
 
      Posted on Google  
   
   Sarah Shaw 
 
 
 
 Trustindex verifies that the original source of the review is Google. Alex was extremely knowledgeable, professional and helpful. He fitted my washer/dryer with ease. I would highly recommend.
  
 
      Posted on Google  
   
   Walter Brown 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very efficient. Our boiler was v old and basically about to go bust. Previously used British Gas, who were useless - signed off the boiler without even looking at it, whereas Alex was fully and transparent, came originally and realised it was a much larger job, didn't charge came back and spent hours fully fixing and repairing. Saved us having to buying a new boiler. Would highly reccommend
  
 
      Posted on Google  
   
   Gech Negn 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thank you for your good service
  
 
      Posted on Google  
   
   Hannah Valentien-Barnes 
 
 
 
 Trustindex verifies that the original source of the review is Google. Alex did an incredible job fixing a leak and also took time explain what’s wrong etc, would highly recommend calling him out. He is super responsive. Thanks Alex!
  
 
      Posted on Google  
   
   Ana Trofin 
 
 
 
 Trustindex verifies that the original source of the review is Google. I've used Plumbing 4 London multiple times over the years, and I honestly can't recommend them highly enough. They really proved their worth on a major project where another plumber had completely let me down. They stepped in, quickly identified the issues, and got everything back on track with professionalism and expertise.

They're always on time, provide honest and accurate advice, and never try to upsell unnecessary work. It's refreshing to deal with someone who's genuinely reliable, trustworthy, and takes pride in doing the job properly.

If you're looking for a plumber who turns up when they say they will, gives the right information, and delivers quality work every time, Plumbing 4 London is an outstanding choice. A genuine, dependable chap who I'll continue to use and happily recommend to anyone.
  
 
      Posted on Google  
   
   Harry 
 
 
 
 Trustindex verifies that the original source of the review is Google. Our boiler suddenly stopped working on a freezing morning. I contacted UK Gas Engineer Ltd  and they had an engineer out the same day. He quickly found the fault explained everything in simple terms and had the heating back on within the hour. Fantastic service.

Boiler Installation FAQs

How do I know if I need a new boiler installation?

Frequent breakdowns, unreliable heating or hot water, recurring repair costs, parts availability and an older inefficient setup can justify an assessment. Age alone does not decide the outcome; the existing boiler and system should be checked.

What types of boilers do you install?

Depending on the property and existing system, options can include combi, system or regular boiler arrangements. Suitability is assessed from hot-water demand, space, pipework, flue route and controls.

How long does it take to install a boiler?

The programme depends on whether it is a like-for-like replacement or a system change, and on pipework, flue, controls and access. We confirm the expected duration and disruption after assessment.

Can you install energy-efficient boilers?

We can assess current energy-efficient domestic boiler options. Actual energy use depends on the property, system condition, controls, settings and household use, so savings are not guaranteed.

Do you provide a warranty for new boiler installations?

Manufacturer cover varies by brand and model and may require registration and ongoing servicing. We confirm the current terms for the proposed boiler. Our workmanship is covered by a separate workmanship guarantee.

What areas in London do you cover?

We serve London as a service-area business. Provide the postcode and property details so availability and the installation assessment can be confirmed.

How much does a new boiler installation cost?

Cost depends on the boiler, system configuration, flue, controls, pipework and any remedial work. We provide transparent pricing for the agreed scope, with no hidden costs.

Can you remove my old boiler during installation?

Removal of the existing boiler can be included in the agreed installation scope. We confirm what will be disconnected, removed and disposed of before work starts.

Do I need to upgrade my central heating system with a new boiler?

In some cases, upgrading parts of your central heating system, like radiators or thermostats, may be recommended to ensure optimal performance with your new boiler. We’ll advise you during the consultation.

How can I maintain my boiler after installation?

Regular maintenance is essential to keep your boiler running efficiently. We recommend annual servicing and offer service plans to ensure your system stays in top condition.

Expert Boiler Installation services near you. We cover all major areas

Plumbing 4 London serves customers across London. Send the postcode, current boiler details and a short description of the heating and hot-water requirements to arrange an assessment.

What we cover
Boiler Installation Services

For a fault rather than a planned replacement, visit emergency boiler repair or central heating repairs. See the heating services hub for other routes.

Boiler Installation London

Boiler installation based on the property

Existing-system assessment

Suitable boiler specification

Verified Gas Safe scope

Transparent pricing

Guaranteed workmanship

Boiler types considered during assessment

Combi boilers

System boilers

Regular boiler arrangements

ATAG boiler options and manufacturer cover

Model selected for the property

Current manufacturer terms checked

Compatible controls

System preparation

Handover and documentation

What our clients say

Boiler Installation FAQs

Expert Boiler Installation services near you. We cover all major areas

Westminster

Chelsea

Vauxhall

Camberwell

Brixton

Clapham

Croydon

Lewisham

Morden

Mitcham

Crystal Palace

Thornton Heath

What we cover
Boiler Installation Services

Boiler Installation London

Boiler installation based on the property

Existing-system assessment

Suitable boiler specification

Verified Gas Safe scope

Transparent pricing

Guaranteed workmanship

Boiler types considered during assessment

Combi boilers

System boilers

Regular boiler arrangements

ATAG boiler options and manufacturer cover

Model selected for the property

Current manufacturer terms checked

Compatible controls

System preparation

Handover and documentation

What our clients say

Boiler Installation FAQs

Expert Boiler Installation services near you. We cover all major areas

What we cover Boiler Installation Services

Make a Booking

What we cover
Boiler Installation Services