What to look for
A reputable contractor will arrive in a marked vehicle. They should also have a full set of credentials, including an I.D. badge for every employee. Finally, you should read some online reviews to get a better idea of what others think of the company.
In terms of what is considered the highest-level quality, you should look into whether the company has a good standing with the Better Business Bureau. This means that the company is well-known in the community and has a reputation for providing quality service.
Aside from a good rating with the Better Business Bureau, you should ask about the quality of their work. While you are at it, you should check to see if the company is a member of the National Chimney Sweep Guild. Call Stone restoration NYC if you need stone work done for your home. This is not an official certification, but it does indicate that the company is up on the latest technologies and practices.
One of the easiest ways to find a reputable chimney company is to use the CSIA Certified Professional Locator. You can also ask your friends and neighbors if they have any recommendations.