Worktop replacement in Liverpool Street

Yes. Liverpool Street is on the patch, and the postcodes we work here are EC2M. It is worked on our the City run, along with the rest of the Square Mile. The realistic answer on a main road is an early slot, a spotter on the van and pieces staged in one movement rather than several trips. We stage the strip-out so the old tops leave in one trip rather than trickling out across the afternoon. Old tops out and new stone in, both through the same gap. We template in your kitchen and fit in your kitchen, so there is nothing to visit and nothing to collect.

External walls are thick and the run under the window sits in a deep reveal that has to be templated rather than assumed square. A mansion block is a logistics job before it is a stone job. Units kept, surface changed, one day. Long thin kitchens in narrow buildings mean the run is easy and the stair is not - build the joints around the landing pivot, not the wall length.

Station-side streets carry very heavy pedestrian flow all day and several approach lanes are pedestrianised or too narrow for a Luton, so the van stops further out than you would like. Entrances are frequently a single door in a narrow court with a straight steep stair and no lift, which caps piece length hard at what two people can pivot on a landing. Weight tells on a staircase more than anywhere else, because there is nowhere to set a piece down mid-flight and no way to change your grip once it is moving. Worth remembering that the old tops have to come out the way the new ones come in, and a laminate run is easier to remove in one length than to carry in one. That is agreed before a plumber is booked.

Yes. On the research for this patch it is the first of the three jobs listed, ahead of worktop templating and worktop installation. A kitchen carved out of a larger room sits under whatever the original plan left behind, so the run frequently ends at a blocked doorway or a boxed-in service. The carcasses have to be sound, because stone is several times the weight of what is coming off. A day, not a project. Conversions put kitchens where the services could be made to reach rather than where they belong, so runs are short and interrupted. The units stay and only the surface changes, so the whole job is one day rather than a kitchen refit. A day, not a project.

Two parallel runs with a walkway between them is the most efficient shape there is on a slab, because both pieces nest as straight lengths with almost no waste. The existing layout is being kept, so the question is whether the old carcasses will take stone in that shape without more support. The units stay, the surface changes. Material is £110-£550 per square metre supply only, and templating, fabrication and fitting are quoted on their own lines.

Anything that has to stay accessible, a stopcock, a gas meter, a riser panel, is marked on the template so the stone is cut around it instead of over it. The old top has been hiding it, so the first honest look at it happens when the laminate comes off. The laminate has been covering it up. Get the managing agent's or freeholder's approval and the permitted hours confirmed beforehand, and agree with the porter who protects the communal carpet, stonework and lift. Mixed ownership means the decision-maker is not always the person who lets us in, so it is worth being clear early about who signs the quote off. A replacement keeps the units and changes the surface, which is the least disruptive way to do this in an occupied property. Units kept, surface changed.