When do I need a permit for mechanical work?
A permit is required to do the following:

Install or change any part of a heating or cooling system that must be vented into any kind of chimney, including unvented decorative appliances

Install a woodstove, fireplace insert, pellet stove, or related venting

Install, alter, or repair gas piping between the meter and an appliance (indoors or outdoors)

Install bath fans, dryer exhausts, kitchen range exhausts, and appliances that are required to be vented

Show All Answers

1. When does my permit expire?
2. When are permits required and who is responsible?
3. Do I need a permit to build a playhouse or a garden/storage shed?
4. When do I need a building (structural) permit?
5. What structural work can I do without a permit?
6. When do I need an electrical permit?
7. What electrical work can I do without a permit?
8. When do I need a plumbing permit?
9. What plumbing can I do without a permit?
10. When do I need a permit for mechanical work?
11. What is mechanical work?
12. Why do I have to buy a permit to build on my own property?
13. How can I see if my contractor is licensed?