Why do chimney sweeps work alone?   

1. Most chimney sweeps work alone unless they're training staff.
    
2. Chimney sweeps rely on their experiences and judgement during everyday work. The learning process never ends for a chimney sweep.
    
3. Each sweep develops a particular set of tools and procedures after being in the business for a short time. Some sweeps develop  particulars above and beyond the regular routine when working for a company or self employed.
    
4. Most sweeps work alone due to their role as maintenance experts identifying problems and giving valuable advice to homeowners without wondering what the other guy is doing and not feeling rushed.
    
5. Many sweeps work alone to keep costs down because of the competitive market.