New Build Plumbing & Extensions in North West & West London
From new residential developments to home extensions and major renovations, KV Heating & Plumbing provides professional plumbing and heating installations tailored to your project. With careful planning, experienced engineers and quality workmanship, we deliver reliable installations from first fix through to final connections and testing.
Professional Plumbing & Heating for Your Building Project
Every successful new build or home extension starts with the right foundations, and that includes properly planned plumbing and heating systems. At KV Heating & Plumbing, we provide professional new build plumbing and extension plumbing services across North West and West London, delivering practical, reliable installations tailored to each property's requirements.
Whether you're building a new home, extending your kitchen, adding a bathroom or undertaking a major renovation, we handle everything from essential pipework and first fix installations to heating systems, plumbing fixtures and final connections.
Working with homeowners, builders and other trades, we focus on careful planning, clear communication and quality workmanship, helping your project progress smoothly while ensuring your plumbing and heating installations are built for long-term reliability.
Plumbing Through Every Stage of Your Build
How our work fits into the construction process.
First Fix
Installed before walls, floors and finishes are completed.
Second Fix
Carried out once the finishes are in place.
Testing & Completion
The last checks before we hand the installation over.
The scope of work depends on your project. Not every service is included in every job.
Our New Build & Extension Plumbing Services
Plumbing and heating installation for new homes, extensions and renovations.
New Build Plumbing Installations
Plumbing installations for new residential properties, including hot and cold water distribution and waste connections.
Plumbing for Home Extensions
Installing and extending plumbing for rear and side extensions, loft conversions and other suitable projects.
First Fix Plumbing
Pipework, water supplies and waste connections installed before walls and floors are finished.
Second Fix Plumbing
Connecting sanitaryware, taps, toilets, basins, showers and other fixtures.
Central Heating Installation
Central heating pipework, radiators and heating distribution for new builds and extensions.
Underfloor Heating Installation
Suitable water-based underfloor heating for new extensions, renovations and new builds.
Bathroom & Kitchen Plumbing
Plumbing connections for new bathrooms, kitchens, utility rooms and additional facilities.
Boiler & Heating System Installations
Appropriate boilers and heating components where the system design calls for them.
Plumbing for Home Extensions
Extending a property often means altering or adding to the existing plumbing and heating. Before we extend or modify anything, we assess the existing installation to see what it can support.
Whether you are planning a kitchen extension, an additional bathroom or a major home improvement, we help you plan the pipework routes, water supply, waste connections and heating from the start.
Water supply
Planning hot and cold supplies for the new space.
Waste connections
Working out where waste will connect and run.
Heating requirements
Checking whether the existing heating can serve the extension.
Pipework routes
Planning routes with the builder before walls and floors close up.
First Fix & Second Fix Plumbing
How plumbing work fits into a building project.
First Fix Plumbing
Installing the essential pipework and plumbing infrastructure before walls, floors and finishes are completed.
Second Fix Plumbing
Installing and connecting bathroom fixtures, taps, sanitaryware and other final plumbing fittings.
Getting first fix right makes second fix smoother. That is why we like to be involved early.
Heating Solutions for New Builds & Extensions
Heating is assessed as part of the overall project, not added as an afterthought.
Central heating installations
Planned for the layout and use of the property. See central heating.
Heating pipework & distribution
Pipework routed and installed at the right construction stage.
Radiator installation
Radiators sized and positioned for each room. See radiator installation.
Wet underfloor heating
Water-based systems for suitable new floors. See underfloor heating.
Boiler installation where required
Fitted where the system design and project call for it. See boiler installation.
Suitable heating controls
Controls chosen to suit the system and the way you use your home.
Heating requirements are worth assessing early. Gas work is carried out by Gas Safe registered engineers.
Our Approach to Your Project
Planned, coordinated and clearly communicated.
Initial Consultation
Discuss the project, requirements and proposed building work.
Property & Project Assessment
Review plans, existing services and plumbing or heating requirements.
Planning & Quotation
Establish the agreed scope and provide clear pricing information.
First Fix Installation
Install the required plumbing and heating infrastructure at the appropriate construction stage.
Second Fix & Final Connections
Complete the relevant fixture installations and plumbing connections.
Testing & Handover
Carry out appropriate checks and explain the completed installation.
Why Choose KV Heating & Plumbing?
Careful planning and quality workmanship from first fix to handover.
Experienced plumbing and heating engineers
Professional first fix and second fix installations
Gas Safe registered engineers for relevant gas work
Careful planning and attention to detail
Clear communication
Quality workmanship
Practical recommendations
Transparent quotations
KV Heating & Plumbing is Gas Safe registered, No. 949238. This applies to gas work, not to plumbing generally.
What our customers say
“Fantastic job from start to finish. Very responsive and open with quote and work required, most competitive price in the area after multiple other quotes. …”
“Wonderful service, called on Saturday and the engineer came within couple of hours and sorted the issue on the day! Very pleasant, efficient and friendly, would highly recommend!”
“This service was excellent - they were on time for the scheduled appointment, completed the task needed and was friendly but completely professional throughout. Would highly recommend this service.”
“Highly recommended company. Fast, efficient and polite and they cleaned up any mess that was made. They clearly knew their trade thoroughly.”
“Job has been done perfectly and really I'm very satisfied for the whole work and wouldn't be hesitate to have this engineer tame again and again to do whatever is needed”
More plumbing & heating services
Related help from the same local team.
General Plumbing
Reliable repairs and installations for taps, toilets, valves and other household plumbing, completed efficiently and to a professional standard.
Bathroom Installations
Complete plumbing for new bathrooms and refits, including showers, baths, toilets and basins, installed to a high standard.
Boiler Installation
Supply and installation of combi and system boilers. We recommend the right model for your home, fit it to a high standard.
Radiator Installation
Supply and fitting of new radiators, including replacement of old or leaking units. Each radiator is balanced to provide even heat in every room.
Where we work across North West & West London
Plumbers and heating engineers for homes across 20 London neighbourhoods
New build & extension FAQs
Can't see yours? Call or message us and we'll happily help.
Do you provide plumbing installations for new build properties?
Yes. We provide plumbing and heating installations for new residential properties, working as part of the wider building project.
Can you install plumbing for a house extension?
Yes. We install and extend plumbing and heating for extensions, including kitchen extensions, additional bathrooms and loft conversions where suitable. We assess the existing installation first.
What is the difference between first fix and second fix plumbing?
First fix is the essential pipework installed before walls, floors and finishes are completed. Second fix happens once finishes are in place and covers connecting fixtures such as toilets, basins, taps and showers.
Can you extend an existing central heating system?
Often, yes. We check what the existing boiler and pipework can support before extending, and advise honestly if the system needs changes.
Can underfloor heating be installed in a new extension?
Yes, we can install suitable water-based underfloor heating in new extensions, renovations and new builds. It is best planned early, as it affects floor build-up.
Do you work alongside builders and other trades?
Yes. We work with homeowners, builders and other trades, and focus on clear communication so the plumbing fits the project programme.
How much does plumbing for an extension cost?
It depends on the size and layout of the project, the number of fixtures and the heating required. We review your plans, agree the scope and give you a clear quotation before work starts.
When should a plumber become involved in a new build project?
As early as possible. Planning pipework routes, waste positions and heating before walls and floors are built avoids problems later.
Do you cover North West and West London?
Yes. We work across both North West and West London. See the areas list on this page, or get in touch if you are unsure whether we cover your address.
Planning a New Build or Extension? Let's Get the Plumbing Right.
Homeowners, builders and property developers are welcome to discuss their plumbing and heating requirements with us early in the project.