New Build Plumbing
Complete plumbing systems for new builds, extensions and renovations.
Working alongside builders, architects and self-builders throughout London & the South East.
New Build Plumbing & Heating Specialists
Whether you are a developer building multiple units, a self-builder managing your own project, or a homeowner extending your property, our experienced engineers provide a complete first and second fix plumbing and heating service. We work alongside builders, architects and project managers throughout London and the South East.
Involving a plumber at the design stage rather than after construction has begun can save significant time and money. We can advise on optimal pipe routes, boiler position, soil stack locations and heating system layout before a single wall is built, changes that are straightforward on paper become expensive once the structure is up.
New Build Project Stages
- 1
Design Consultation
We review your plans and provide input on optimal pipe routes, boiler placement, soil stack positions and heating system layout before construction begins.
- 2
First Fix
All rough-in pipework, waste runs and gas pipework installed before plasterboard goes up, neat, building-regulations-compliant routes that make second fix straightforward.
- 3
Second Fix
Sanitaryware, radiators, boiler, cylinder and all visible fittings installed and connected once the finishing trades are complete.
- 4
Commission & Test
Full system commissioning, hydraulic pressure testing and balanced flow rates confirmed before handover.
- 5
Certification & Handover
Building regulations certificates, Gas Safe documentation and all commissioning records issued for your building control sign-off.
New Build Plumbing Services
- First fix rough-in pipework
- Second fix & full commissioning
- Boiler & heating system design
- Underfloor heating installation
- Bathroom & en-suite fitting
- Soil, waste & vent stack installation
- Mains water connection coordination
- Building regulations compliance
- Snagging & defect rectification
First Fix vs. Second Fix Plumbing Explained
First fix refers to all the plumbing work carried out before plastering and boarding, laying pipes in walls and floors, installing soil and waste stacks, and running gas pipework to where appliances will eventually be positioned. Second fix is everything that happens after the finishing trades: connecting sanitaryware, fitting the boiler, installing radiators and commissioning the full system. Both stages require careful planning to ensure the second fix connects neatly to the first.
Underfloor Heating for New Builds
A new build is the ideal time to install wet underfloor heating. UFH is significantly more efficient than radiators when paired with a modern heat pump or condensing boiler, operating at lower flow temperatures and distributing heat evenly across the entire floor surface. It eliminates the visual clutter of radiators and frees up wall space. We design and install complete UFH systems and integrate them with your boiler or heat pump for optimal efficiency.
Building Regulations for New Build Plumbing
All new plumbing and heating work in new builds must comply with Part G (Sanitation, hot water safety and water efficiency), Part H (Drainage and waste disposal) and Part L (Conservation of fuel and power) of the Building Regulations. Our engineers are familiar with these requirements and all work is carried out and documented to meet building control sign-off standards.
New Build Plumbing FAQs
When should I get a plumber involved in a new build project?
Ideally at the planning stage, before the structural drawings are finalised. This allows us to flag any issues with the proposed layout, for example, a bathroom positioned far from a soil stack, or a boiler flue that would be difficult to route, before they are built in.
Do you work with builders and contractors?
Yes. We work regularly as a sub-contractor for building companies and project managers. We are used to working to site programmes and coordinating with other trades. References available on request.
Can you install a heat pump rather than a gas boiler?
Yes. We install air source heat pumps and integrate them with underfloor heating and hot water cylinders. For new builds in particular, a heat pump combined with UFH can be highly cost-effective and futureproofs the property as gas boilers are phased out of new builds.
Planning a New Build or Extension?
Get in touch early, involving us at the design stage saves time and money during the build.
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