Is Caulk the Same as Filler?

Caulk and filler do a similar job but are generally used in slightly different situations. Typically you would use filler to fill holes and small damaged areas on flat surfaces. Decorator's caulk is more commonly used on joints, corner and gaps to seal an area between two materials, ie. between walls and skirting boards.

Decorator's Caulk | Decorating Centre Online

Decorator's Caulk

As a specialist, flexible, acrylic filler, decorator's caulk part of the preparation stage of decorating. Used by both professional decorator's and home DIY experts, caulk is designed to seal gaps and cracks in walls. We offer caulks from different brands including Polycell, Red Devil and others.