Service
Damper & Firebox Repair
Damper replacement and firebox rebuilds so the fireplace seals tight and burns without cracking.
A throat damper that has rusted open sends heated air up the stack all winter and lets humid summer air pour back down into the room, while a firebox with crumbling refractory joints can let a hot fire reach the framing behind it. We replace worn throat dampers, install top-sealing dampers that close the flue at the cap, rebuild fireboxes with firebrick and refractory mortar, and swap cracked panels in the factory-built units common in newer neighborhoods.
What's included
- 01Top-sealing damper installation with a chain-operated seal at the cap
- 02Throat damper plate and frame replacement
- 03Firebox rebuilds with firebrick laid in refractory mortar
- 04Refractory panel replacement for factory-built fireplaces
- 05Lintel and smoke shelf repair
Available at every location
Call or contact any of our Tennessee locations for damper & firebox repair, Monday–Saturday, 9 AM–5 PM:
Why choose National Chimney Pros
The speed of a large company with the accountability of a local team.
- 01
Family-owned since 2011
Founded by a second-generation mason, we still answer our own phones at every location and stand behind each job with our name.
- 02
CSIA-trained technicians
Every sweep on our staff is trained to current safety standards and works from the same inspection checklist.
- 03
Masonry built for winters
We rebuild crowns, caps, and flues with mortar mixes chosen for East Tennessee's freeze-thaw cycles, not generic patch products.
- 04
Clean-home promise
Drop cloths, HEPA vacuums, and a walkthrough before we leave, so your living room looks the way we found it.
- 05
Local Tennessee teams
Dedicated technicians in 10 cities means faster arrival and people who know your area.
- 06
Root-cause repairs
We fix what actually failed on your chimney and explain it plainly, so the same problem does not come back next month.
Ready for a safer, cleaner chimney?
Call your nearest location Monday–Saturday, 9 AM–5 PM, or send us a message and we will get right back to you.