Looking at replacing kitchen worktops and sink -what are the pros and cons of going for work top overlay ?

Thanks, but there isn´t really a windo sill. All there is is the thickness of the widow surround, which is a couple of millimeters. I really would like to find something htat will just go along the join where the walls meet the worktop. I´m sure there must be some kind of trim that is commonly used.

Hi Mark, Firstly do the carcasses really need replacing? i.e. are they breaking inside? Reason I ask is because carcasses are generally the same size from brand to brand unless you have had a very bespoke kitchen. It will be harder to replace the carcasses as the base units will be siliconed to the worktops underneath. Naked doors is a great brand which specialises in changing just the front doors: https://www.nakedkitchens.com/doors?gclid=EAIaIQobChMI1MSGq7aR5QIViaztCh3yYAZJEAAYASAAEgKJnvD_BwE If however you really do want to change the internals first thing I would do is speak to several builders and find one that is willing to change them for you. Some might tell you they can't do it, some might be able to do it. Good luck! Hope that helps Rukmini

A 20mm gap is far to much to have as the upstands are only 20mm thick, if the fitters tried to fit the upstands to the walls then it would slip down the back. The overhang of the worktop to the front of the cabinets, depending on the depth of the cabinets, should be between 30-40mm all round, be worthwhile checking this out. When you say the tap doesn't fit easily, is it that the hole is to small (35mm) or does the tap hit the upstand. I assume the kitchen (base units at least) were all in place and fitted before templating and haven't moved between template and worktop installation. I think the fitters have tried to make the best out of a bad job and something went wrong in either templating or fabrication. Your supplier should still have the physical templates so I'd definitely go back to them. There's always a bit of filling to be done between the upstands and the wall with decorators caulk as no wall is flat and upstands don't bend. Modern dob and dab walls are some of the worst i've seen. Hopefully its decorators caulk and not silicon thats been used.