Pour-day access planning for St Thomas terraces

Where the pump cannot reach the pour room directly, the liquid screed travels along a hose run that passes through hallways, existing rooms and doorways before reaching the area being poured. Each of those spaces along the route is a place where spillage, splashing or simple wear from dragging the hose across a finish can cause damage if it is not protected in advance.

Working out the route is a practical exercise best done on a site visit rather than from a floor plan alone. Door widths, tight turns near stairs, and any furniture or fittings that cannot be moved all affect how easily the hose can be manoeuvred, and in some cases the practical route is not the shortest one on paper.

Existing floor coverings on the hose route — tiles, timber, carpet — need protection that will withstand a moving hose being dragged and repositioned repeatedly over several hours, not just a light dust sheet. Board protection or heavy-duty sheeting is usually appropriate at pinch points such as doorway thresholds, where the hose changes direction and abrasion is greatest.

It is also worth agreeing in advance who is responsible for moving furniture and rugs out of the route, and confirming that protection stays in place until the screeded area has gone off enough that traffic through the house can safely resume.

Terraced houses of this era were rarely built or extended in one continuous phase, so it is common to find original suspended timber ground floors in the front rooms and solid concrete infill under a later rear extension, sometimes within the same room where an opening has been created. Each construction type calls for a different screed approach and depth.

Because the build-up is not always visible without lifting existing coverings, confirming it during survey — rather than assuming from the age or style of the house — avoids design decisions being made on incorrect information partway through the job.

Many St Thomas jobs are part of a wider renovation, with electricians, plumbers and joiners working around the same rear extension before and after the floor goes down. Underfloor heating pipework, service runs and any final joist checks generally need to be signed off before the screed is poured, since lifting a cured floor afterwards to fix an oversight is far more disruptive than a short delay beforehand.

Coordinating this sequence with whoever is managing the wider build, so trades are clear of the pour area and any first-fix work is genuinely complete, avoids a pour being rushed to hit a date that other parts of the job are not actually ready for.

A terrace pour usually happens while the household is still living in most of the property, so the crew needs a clear picture of which rooms remain in use during the pour and which are being handed over for the day. Agreeing this ahead of time, rather than negotiating room by room on the morning, keeps the pour moving and avoids the household feeling like the whole house has been taken over unnecessarily.

It also helps to agree roughly how long the poured area needs to stay closed off afterwards, since a rear kitchen extension is often the main route to a garden or bin store, and residents may need to plan an alternative way out of the house for a day or two while the floor cures enough to bear light traffic.