Building envelope / Office buildings
Below-grade water ingress investigation for offices
Prepare an investigation of water entering below-grade walls, parking or service spaces. Connect indoor observations with the site, drainage and earlier repair history so a qualified provider can define a useful assessment.
The decision this helps you make
What to aim for.
A documented understanding of the observed entry paths, investigation limits and options for further assessment or corrective work.
Office envelope work may affect exterior access and business activity inside perimeter suites. Bring together the exterior observations and tenant reports so the provider can assess their locations and propose a coordinated investigation.
Define the scope.
- Identify affected walls, slabs or spaces and describe when water entry occurs.
- List nearby site features and known drainage or waterproofing work for review.
- Ask the provider to separate investigation, temporary measures and permanent corrective options.
Put these records together.
- Collect available below-grade drawings, drainage plans and earlier waterproofing or repair reports.
- Provide dated photographs and observations associated with rainfall or other site conditions.
- Identify access restrictions, adjoining property contacts and any occupied operations affected by investigation.
For offices
Fit the work around the property.
An office project works best when the brief distinguishes the shared building systems from the spaces operated by individual tenants. Identify the asset, floor or suite involved and provide the existing drawings and service history that help define the starting point. The owner or asset manager may approve the investment while a property manager coordinates delivery and tenant contacts explain their operating needs. Record those roles before requesting comparable proposals. Occupancy patterns, meetings and business-critical activities can influence when investigation or disruptive work is practical.
Discuss access through reception, loading areas and secure suites, including who can escort visiting contractors. If a project touches both shared and tenant-controlled assets, flag that boundary for review instead of allowing each bidder to assume a different scope. Ask how the contractor will communicate proposed interruptions, new findings and changes requiring approval. At handover, collect asset records, updated information and the remaining action list. The goal is a project record that the facilities team can use while tenants receive a clear account of the work affecting their space.
Decisions and responsibilities
- Owner or asset manager approving investment and project scope
- Property or facilities manager coordinating shared building systems
- Tenant representatives confirming suite access and business operating needs
Service-specific scope
- Mark reported water entry, window concerns and visible exterior observations by floor.
- Identify affected tenants and secure spaces needing appointments or escorts.
- Discuss staging around entrances, loading areas and the building’s normal pedestrian routes.
Access and operations
- Reception sign-in, secure suite access and contractor escort arrangements
- Loading dock bookings, freight elevator use and material storage
- Work windows coordinated with affected tenant representatives
Questions for the provider
- How will the proposed sequence limit repeated disruption to the same tenant spaces?
- What record will distinguish completed repairs from areas needing further investigation?
Ask for a comparable proposal.
- Define the assessment areas and the assumptions about access to concealed construction.
- Separate testing, opening-up, excavation or specialist input from the initial investigation.
- Ask the report to explain findings, unresolved questions and the basis of each proposed option.
Understand what affects the cost.
Ask providers to price the same scope and explain the assumptions behind these items.
- The depth and accessibility of the affected construction and surrounding site areas.
- The investigation needed to distinguish possible entry paths or connected drainage issues.
- Parking, tenant or neighboring-property coordination and restoration after investigative work.
Working checklist
Build your project brief.
Use this page as a working checklist. Print the completed view for your records. These entries are separate from the introduction request.
Project: Below-grade water ingress investigation · Property: Office buildings
Agree on the handover.
- Keep a marked location record and photographs documenting the investigation findings.
- Record temporary measures and any monitoring requested by the responsible professional.
- Obtain a separate corrective-work brief with access, restoration and verification responsibilities.
- Asset-level service records and updated project drawings
- Tenant-specific completion notes where work enters leased space
Questions before you begin.
Should we request excavation as the first step?
Describe the observations and ask the provider to explain an appropriate investigation sequence. Have the proposal distinguish what can be assessed initially and what further access may be needed.
What makes a waterproofing repair proposal easier to compare?
Start with the same investigation findings and affected areas. Ask providers to explain repair boundaries, access, reinstatement, assumptions and verification so the options can be assessed against the same problem.
Who should coordinate below-grade water ingress investigation for offices?
Confirm the responsible contact among Owner or asset manager approving investment and project scope; Property or facilities manager coordinating shared building systems; Tenant representatives confirming suite access and business operating needs. Give the provider one person who can supply records, arrange access and take questions back to the decision-maker.
Continue planning.
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About this guide.
Prepared by Booked Intros. These project checklists help owners, boards and managers organize a scope and compare proposals. Your provider confirms the technical approach, local requirements and site-specific conditions.
Content updated: . How our guides are prepared.
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