What this work covers
Pre-inspection and measurement compares the drawings with the actual property. It records dimensions, utility positions, retained and removed work, and existing defects so the quote, orders, and every later trade use the same site reference.
When this work is needed
The survey matters in a full renovation and in any partial project where windows, cabinets, tile, plumbing, or electrical positions drive an order. Even an accurate completion drawing may omit later alterations or existing damage. Define what must be verified on site before releasing anything for manufacture.
Decide before work starts
Set the investigation boundary and recording method before the site visit begins.
- Which finishes, cabinets, and services are removed and which remain
- Window, wall, ceiling, and other dimensions needed for manufactured orders
- Locations of breakers, water and gas meters, access panels, pipework, and drains
- The extent of checks for leaks, condensation, mould, and cracking
- Photo naming, location marking, and responsibility for drawing revisions
Check in the quote
Use these questions when you review the quote.
- Who completes and approves the final measurement before manufacture?
- Does the survey include opening access panels to locate plumbing and electrical services?
- Are moisture checks included where leaks or condensation are suspected?
- When drawings and site conditions differ, how are cost and programme changes approved?
- Will the measured schedule and defect photos be shared with each relevant trade?
If you have the drawings, measured schedule, or photos of existing damage, I can help you identify the dimensions and additional checks needed before ordering.
What to check on site
This survey creates the baseline that separates existing conditions from construction changes. Begin where the drawing and the property disagree, then connect every measurement and defect to a clear location.
- Organize inspection criteria
Review the latest drawing and quote together, separating work to be removed, work to be retained, and access points that must remain available. If their scopes differ, decide which document governs before measurements are taken. - Measure dimensions and utility positions
Measure window openings, wall lengths, ceiling heights, and plumbing and electrical positions, marking every difference by room. For cabinets and windows that cannot be adjusted easily on site, use these measurements to confirm whether manufacture can proceed. - Record existing defects and weak points
Photograph leak marks, condensation, cracks, and impact damage with both a room view and a close-up. Link the date and position to the drawing or inspection schedule so damage exposed during demolition can be distinguished from the original condition.
Where problems usually start
- Existing leak evidence If the location and possible cause are not recorded before work, the same symptom may reappear behind the new finish.
- Structural and service constraints Ordering without locating structural walls, access panels, pipework, and wiring can expand both demolition and cost.
- Distribution-board capacity New high-load equipment can trip breakers and delay installation when the proposed load has not been checked against the available capacity.
A damp mark does not prove that waterproofing is the cause. Set additional checks that can separate plumbing, exterior-wall water, and condensation before the affected finish is specified.
If a site dimension differs from the drawing, do not leave a worker to improvise. Revise and approve the drawing and quote before manufacture or layout marking begins.
Timing and records
Allow roughly four to eight hours for inspection, but opening access panels, tracing moisture, and further service checks are additional. Leave time to issue the results before demolition or manufactured orders are released.
Keep the measured schedule, marked drawing discrepancies, photos of the distribution board and meters, and wide and close-up views of every existing defect. These records become the baseline for conditions exposed later during demolition.
The survey follows administrative approval and supplies the dimensions used for site setup and layout marking. Reading those stages together keeps ordered work and site positions on the same baseline.