Whether you’re building a brand-new home, extending your property, or undergoing a major refurbishment, a properly installed plumbing system is absolutely essential. At Citywide Plumbers, we specialise in new plumbing installations throughout London – delivering safe, efficient, and regulation-compliant systems for both domestic and commercial clients.
Installing a new plumbing system isn’t just about connecting pipes – it requires careful planning, skilled execution, and precise testing. In this article, we walk you through the three essential stages of a successful plumbing installation.
Stage 1: Planning and Groundwork
Overview
Before a single pipe is laid, detailed planning is required. This first stage involves careful design, mapping, and preparation to ensure your plumbing system will meet your property’s needs both now and in the future.
Key Tasks in Stage 1:
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Designing the System Layout: Our team works alongside architects or builders to design pipe routes, connection points, fixture placements, and flow direction.
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Assessing Water Pressure and Flow Needs: We calculate demand based on the number of bathrooms, kitchens, and appliances.
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Soil Stack and Drainage Planning: Drainage slope, venting, and access points are designed in accordance with building regulations.
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Site Clearance and Excavation: For new builds or ground-level changes, trenching and floor penetration are completed safely and professionally.
Why it Matters
Mistakes at the planning stage can be costly later. Our experienced plumbers ensure every aspect is mapped out correctly before a single pipe is installed.
Stage 2: First Fix – Pipework and Rough-In
Overview
This is the “hidden” phase where most of the piping is installed within walls, floors, and ceilings before plastering or tiling is completed. It’s one of the most crucial stages.
Key Tasks in Stage 2:
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Laying Pipework: We install the hot, cold, waste, and vent lines throughout the structure.
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Positioning Water and Waste Lines: Pipes are fitted to serve all taps, toilets, showers, and appliances according to the layout.
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Fixing Soil and Waste Systems: Soil stacks, vent pipes, and traps are installed to ensure smooth waste disposal and prevent odours.
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Isolation Valves and Stop Taps: Key control components are placed strategically for future maintenance.
Why it Matters
Everything must be correctly positioned, securely fixed, and pressure-tested before walls and floors are sealed. At Citywide Plumbers, we guarantee the highest-quality pipework using WRAS-approved materials for long-term performance.
Stage 3: Second Fix – Fixtures and Final Testing
Overview
Once walls and floors are finished, the visible parts of the plumbing are installed – including sinks, taps, toilets, showers, and appliances.
Key Tasks in Stage 3:
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Installing Fixtures: Baths, basins, kitchen sinks, WCs, showers, and washing machines are fitted precisely.
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Connecting Boilers and Water Heaters: Hot water systems and their controls are installed and tested.
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Sealing and Aesthetic Finishing: Silicon sealing, trim installation, and pressure balancing are completed with precision.
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Final Testing and Commissioning: We check for leaks, verify flow rates, and ensure compliance with local water regulations.
Why it Matters
At this stage, poor workmanship becomes visible. Citywide Plumbers ensures every fitting is both functional and perfectly presented. Our work is tidy, tested, and guaranteed.
Benefits of Professional Installation by Citywide Plumbers
Experienced Installers: Our plumbers are fully qualified, insured, and trained in current UK building regulations.
Tailored Designs: We customise systems based on your needs, budget, and property layout.
Reliable Timelines: We coordinate seamlessly with other trades to stay on schedule.
Regulation-Compliant: We meet all Building Control and WaterSafe standards.
Aftercare and Support: We remain available after the job for any questions, snags, or changes.
Need a New Plumbing System Installed in London?
Whether it's a loft conversion, an entire home renovation, or a commercial project – we’re ready to help. Citywide Plumbers offers comprehensive new plumbing installations across Greater London.
Call us today on 02038928545
Email: info@citywideplumbers.co.uk
Our work is efficient, clean, and built to last – the Citywide way.