If you are experiencing a blocked sink in your kitchen located in Longridge, Gloucestershire then the first step is to identify what type of blockage it is. If the signs indicate an internal blockage deep within the pipe work such as food particles and limescale build-up, then use some drain unblocking products or chemicals available from local hardware stores. A different solution may be needed if dealing with tree roots blocking pipes outside your property. In this instance using a power jet wash could help dislodge any stubborn obstructions before snaking public drains further down below ground level which can sometimes cause problems for homeowners when pipes become overgrown due to shrubbery growth that has grown too close just above ground level near manhole covers on private properties themselves. Finally, another option worth trying out would be pouring small amounts of soda crystals into buckets/bins filled up with warm water poured straight down sinks prior to maybe leaving overnight, so they dissolve whatevers causing stickiness hardening up around piping walls not allowing normal flow access any more through them - ultimately leading onto trouble downstream away from where issue originated stemming off, thanks!