Fireplace Repair & Chimney Services Fireplace, wood-burning stoves, gas or oil heating appliances all contribute to dirty chimneys. Burning wood produces a black, sticky combustible layer that requires regular cleaning. We sweep your chimney clean by brushing the inside to eliminate built-up soot. Depending on your usage, the damage can range from a light layer to heavy build-up of burnt solids. A yearly clean-up by Top Shield Construction eliminates your concerns and gives you peace of mind.