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    Public Health Engineering Consultancy

    Water, drainage and pipework advice for better coordinated building projects.

    Scoped

    the instruction and exclusions are agreed in writing

    Evidence-led

    unknowns and access limits stay visible

    Actionable

    the output supports a defined project decision

    Consultancy, not installation

    Public health engineering covers the water services, drainage and pipework within a building. This service provides consultancy: defining requirements, reviewing design information and coordinating interfaces with the wider design team.

    The scope of each appointment is agreed in writing. Calculations, drawings, specifications, BIM models and site visits are included only where they are explicitly appointed as deliverables.

    Pipe routes, risers and service penetrations interact with compartmentation and the fire strategy, so those interfaces are coordinated as part of the review rather than left to site resolution.

    Typical scope, subject to the agreed appointment: domestic hot and cold water distribution advice, including the demand, pressure and storage inputs the design needs; above-ground foul, soil, waste and rainwater drainage advice; pipe routes, riser space, access and maintainability; and water-efficiency options where the brief asks for them.

    When this service is useful

    Water, drainage and pipework decisions affect risers, plant space, penetrations and compartmentation; unresolved interfaces tend to surface late in design or on site.

    Magnus Opifex Seven provides consultancy for building water services, drainage and pipework coordination. We help architects, developers, building owners and project teams define requirements, review design information and resolve interfaces with the wider building design.

    Primary outcome

    A written consultancy output for the agreed appointment, with requirements, information gaps, options and coordination actions clearly recorded.

    Design information for water or drainage needs an independent review

    Risers, plant space or pipe routes conflict with other disciplines

    An existing building's water services or drainage need assessing before alterations

    Service penetrations need coordinating with compartmentation and the fire strategy

    The project team needs requirements defined before detailed design

    What you receive

    Clear outputs you can act on.

    Typical outputs for this service are listed below. The exact format — report, review notes, survey record or technical position — is confirmed in the agreed appointment, and each records the information supplied, the assumptions used and the limitations that apply.

    Written design review

    Information gap schedule

    Options appraisal

    Coordination register

    Defined design documentation where appointed

    How we scope and coordinate the work

    The service is defined before the fee is quoted.

    The scope is set from the building facts, drawings, jurisdiction, project stage and the question the written output needs to answer.

    Scope point 01

    Scope stated first

    What is reviewed, designed or excluded is agreed in writing before work starts.

    Scope point 02

    Interfaces made visible

    Penetrations, risers and plant interfaces are recorded against the fire strategy and compartmentation.

    Scope point 03

    Gaps recorded, not assumed

    Missing information is listed in a gap schedule rather than filled with assumptions.

    From enquiry to written report

    A clear sequence from information request to issued output.

    Every stage records what has been supplied, what remains open and what the report can and cannot conclude.

    01

    Define the brief

    Agree the question, project stage, information held and required output.

    02

    Review information

    Review drawings and design information against the agreed scope.

    03

    Coordinate

    Identify interfaces with structure, architecture, other services and the fire strategy.

    04

    Appraise

    Set out options and the information still needed.

    05

    Issue

    Provide the agreed written output and coordination register.

    How the evidence becomes a written output

    A simplified view of the sequence described above. The actual steps, inputs and outputs are confirmed in the written scope for your project.

    Three-step diagram: water and drainage routes, interfaces with fire strategy, structure and plant, agreed design responsibilities
    Illustrative process for public health engineering consultancy, not a project drawing. Magnus explanatory illustration.

    Recorded basis

    A scoped, documented technical process

    The question, available evidence, access and required output are agreed before a quotation is issued.

    Scope and exclusions agreed
    Evidence and limitations recorded
    Written output issued

    Result

    This is a scope and process record, not a completed project: the output follows the agreed appointment and records exclusions and information gaps.

    Prepare your project brief

    What we need from you to scope the work.

    Public Health Engineering Consultancy

    Use this as a checklist before you ask for a quotation. Tick what you hold; unknown items can be listed as unknown. Nothing here is saved.

    Request a scoped quotation
    Scope boundaries

    What this service does not include.

    • Consultancy only: no installation, maintenance or emergency plumbing work.
    • Automatic sprinkler design, medical gases, HVAC and electrical services are excluded.
    • No SuDS or flood-risk consultancy is offered under this service.
    • Below-ground and external drainage responsibility is stated explicitly in each scope and is not assumed.
    • Calculations, drawings, specifications, BIM and site visits are provided only where explicitly appointed.
    • Fees and programme are confirmed in a written quotation once the brief is reviewed.
    Client needs

    How this service supports project and building teams.

    Architects
    Water, drainage and riser requirements defined early enough to coordinate with layouts and the fire strategy.
    Developers
    A clear scope of what PHE input is needed at the current stage, and what is excluded.
    Property managers
    Advice on existing water services or drainage before alterations, with gaps recorded.
    Building engineers and surveyors
    Independent review of design information and the interfaces with other disciplines.

    Questions about this service

    What does public health engineering cover?

    Building water services, above-ground foul, soil, waste and rainwater drainage, and the pipework, routes and risers that serve them. Below-ground and external drainage responsibility is defined in each scope.

    Is this consultancy or installation?

    Consultancy. We review, advise and, where appointed, prepare defined design documentation. We do not install, maintain or repair plumbing systems.

    Can you review an existing building?

    Yes, where the scope is agreed. The review is based on the information supplied and, if appointed, a site visit; limitations are recorded.

    How does this coordinate with the fire strategy?

    Pipe routes, risers and penetrations are checked against compartmentation and fire-strategy interfaces, and coordination actions are recorded in the register.

    Do you provide BIM models?

    Only where BIM deliverables are explicitly agreed in the appointment. It is scope-dependent and not a default output.

    How is the fee set?

    The fee depends on the brief, project stage, information available and required output. It is confirmed in a written quotation.

    Request a written scope

    Request a scoped quotation

    Send the project location, building use, stage, the problem to resolve, the output needed, available drawings and your timeframe.

    MO7

    Magnus Opifex SEVEN LTD

    Fire Safety & Fire Engineering Consultancy — London, UK

    Ready to Protect Your Next Project?

    From concept design to regulatory compliance, our fire engineering scope covers fire strategy, fire risk assessment, CFD smoke modelling and Building Safety Act 2022 support. Send project details for a scoped quotation.

    Founders & Leadership

    NS

    Nicoleta Vasile, Baroness of Brattleby

    Founder & CEO · Chief Legal Officer · Romanian-qualified Lawyer

    AS

    Alina Scarlat

    Technical Director & Fire Engineer (BEng)

    RV

    Răzvan Vasile

    Co-Founder & Chief Financial and Strategy Officer

    Head Office: 167-169 Great Portland Street, 5th Floor, London W1W 5PF
    © 2026 Magnus Opifex SEVEN LTD. All rights reserved.

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