First-Fix Pipework
First-fix is the foundation. Hot and cold supply pipes, waste lines and soil connections are installed and pressure-tested before any walls or floors are closed. We map the new layout against existing services, choose the right pipe material (copper or PPR), set correct falls on every waste run, and fit isolation valves so future maintenance does not require shutting off the whole house.
Once this stage is tested and signed off, the builder can safely board and tile. Skipping or rushing first-fix is the most common reason renovations develop leaks or slow drainage months later.
- Supply routes planned for every new fixture position
- Waste and soil pipes installed with continuous correct fall
- Full pressure test completed before concealment
- Isolation valves placed for long-term serviceability





