How do I keep birds and animals from nesting in my fireplace vent or chimney?
Mars Hill runs two ways: university-area rentals that want an easy, sealed gas fireplace, and rural Spring Creek and Gabriels Creek homes on propane or wood. Wood flues draw the most nesting trouble — swifts and squirrels love a masonry chimney — so those need a mesh-sided stainless cap, while the sealed gas units rely on their factory vent screen.
Wood chimneys are the ones animals prefer
Out in the rural valleys around Mars Hill, wood heat is common, and an open wood-burning flue is the single most attractive target for nesting animals — warm, wide, and often uncapped on older properties. A stainless cap with mesh sides blocks swifts, starlings, and squirrels while still passing smoke and shedding rain, and it doubles as a spark arrestor over a real wood fire.
The propane cabins nearby carry a screened vent termination instead, and the university-area rentals lean on sealed gas whose factory screen just has to stay clear. Different fuels, same principle — the guard has to match the flue it's protecting.
One of the colder corners, Madison County
Mars Hill sits at a cold elevation with a long heating season, so a blocked flue isn't a minor annoyance — it's lost heat on a single-digit night when you're counting on the fire. Any propane or gas venting work is licensed and permitted with the Madison County office.
Spring nesting means a late-summer or fall inspection is the right time to clear the flue and confirm the cap before you depend on the fireplace. If something's nested, we remove it by hand — never a fire, which backs up carbon monoxide and harms protected birds. Call (828) 545-0525.
Fireplace help in Mars Hill
We install and service fireplaces throughout Mars Hill and the rest of Madison County — just 30 minutes north from our Asheville-area showroom.
Related questions
- Do chimney caps need to be inspected or replaced?
- What should I check on the outside vent cap of a direct vent fireplace?
- How often should the venting on a direct vent gas fireplace be inspected?
- Does an outdoor wood-burning fireplace chimney need sweeping too?
- How do I know when my chimney needs to be swept?

