New-build plumbing packages for housing developments, apartment blocks and mixed-use schemes
PipeSaxis Mechanical delivers development plumbing packages for new-build housing estates, apartment blocks and mixed-use residential schemes across England. We work as a subcontractor to developers and main contractors, installing first and second fix pipework, risers, bathrooms, HIU systems, boosted cold water and plant rooms. Every package is supervisor-led, QA-controlled and document-supported, from RAMS approval through pressure testing to a complete handover pack.
New-build programmes succeed on coordination, and that is how our site teams are organised. We attend pre-start and progress meetings, sequence our works around other trades, report progress against your programme and flag design or builders-work issues early. Toolbox talks, COSHH assessments and signed RAMS sit behind every visit, and photo evidence is logged plot by plot so your QA trail keeps pace with the build. We provide nationwide subcontracting for planned commercial and development works.
SVC-02 / Scope
What this package covers
01
First and second fix
Hot, cold and heating pipework installed plot by plot, sequenced with other trades and inspected before boarding so nothing is buried untested.
02
Risers and laterals
Vertical risers and lateral distribution across apartment blocks, set out to coordinated drawings with fire-stopping interfaces and valve positions agreed before installation begins.
03
Bathroom installation
Complete bathroom and en-suite fit-out, from carcassing to sanitaryware, delivered to a repeatable plot standard with snagging closed out before plot handover.
04
Plant rooms
Plant room pipework, pumps, vessels and manifolds installed to drawing, labelled, insulated and prepared for commissioning and O&M documentation at completion.
05
HIU installation
Heat interface units installed and flushed across apartment schemes, with consistent connection details, commissioning records and per-plot photo evidence for the handover pack.
06
Boosted cold water
Booster sets, break tanks and pressurised distribution for multi-storey blocks, sized for storey heights and demand so top-floor plots perform correctly.
07
Testing and commissioning
Pressure testing, flushing, chlorination and balancing carried out to an agreed inspection and test plan, with witnessed tests recorded and certificates issued.
08
Programme support
Supervisor-led site teams scaled to your build sequence, attending coordination meetings, reporting progress weekly and adjusting labour as the programme moves.
Built for
- Main contractors delivering multi-storey residential and apartment schemes
- Residential developers building housing estates and phased developments
- M&E contractors needing a plumbing package partner on larger schemes
- Build-to-rent and student accommodation developers with repeatable plot specifications
- Housing associations procuring new-build plumbing packages through their contractors
QA & Documentation
- Site-specific RAMS and COSHH assessments issued and approved before mobilisation
- Plot-by-plot photo evidence of first fix pipework before boarding and screeding
- Pressure test records and flushing certificates logged against each plot and riser
- Toolbox talks and supervisor inspections recorded throughout the installation phase
- Snagging tracked and closed out per plot ahead of plot handover dates
- Handover packs with certificates, commissioning records and O&M information at completion
SVC-02 / Delivery
How the package is delivered
Stage 01
Scope and pricing
We review drawings, specifications and your programme, then return a priced package with attendances, exclusions and labour assumptions clearly stated, so procurement can compare like for like.
Stage 02
RAMS and mobilisation
Site-specific RAMS and COSHH assessments are submitted for approval, supervisors appointed, operatives inducted and materials called off against the build sequence before we start on site.
Stage 03
Phased installation
Supervisor-led teams deliver first fix, risers, second fix and bathroom fit-out plot by plot, coordinated with other trades and inspected at each QA hold point.
Stage 04
Testing and evidence
Pipework is pressure tested and systems flushed and commissioned to the inspection and test plan, with witnessed tests, certificates and photo evidence recorded as the build progresses.
Stage 05
Handover and snagging
We close out snagging per plot and phase, then issue handover packs with test records, commissioning sheets and O&M information ready for building control and your client.
SVC-02 / FAQ
Direct answers for commercial buyers
Yes. We are set up as a subcontractor: we price from your drawings and specification, submit site-specific RAMS for approval, attend pre-start and progress meetings, and report against your programme. Our supervisors manage day-to-day coordination with your site team, and our paperwork — test records, photo evidence and handover documentation — is structured to feed your QA system. Certification and insurance details available on request.
Yes. We install heat interface units across apartment schemes to a consistent connection detail, then flush and commission each unit with records retained per plot. For boosted cold water, we install booster sets, break tanks and pressurised distribution sized for the block, and test the system through to the highest outlets. Both packages are delivered with photo evidence and commissioning sheets for the handover pack.
We plan labour against your build sequence rather than a fixed gang size, scaling teams up for first fix peaks and back for fit-out. Supervisors attend progress meetings, track plots through each QA stage and flag builders-work or design issues early, before they cost time. Materials are called off ahead of need so deliveries match the programme, not the other way round.
Each plot and phase is handed over with pressure test records, flushing and chlorination certificates, commissioning sheets for HIUs, pumps and booster sets, and photo evidence of concealed pipework taken before boarding. We compile these into handover packs alongside O&M information, so building control sign-off and your client handover are document-supported rather than dependent on chasing paperwork after completion.
We provide nationwide subcontracting for planned commercial and development works across England, mobilising site teams to suit each scheme's location and duration. Where gas works are undertaken, such as boiler installations or plant room gas pipework, we are Gas Safe registered for that scope. Tell us the site location, programme dates and package scope, and we will confirm coverage and lead times at tender stage.
Send us your scope and drawings
Share drawings, specifications and programme dates for your development and we will return a priced, comparable plumbing package with attendances and exclusions clearly set out. We can also attend a pre-tender site visit or coordination meeting where that helps.