Manchester’s Choice for
Smoke Chamber Repair & Parging
If smoke comes back into your home every time you light a fire in your fireplace, the problem could lie with the smoke chamber. This inverted funnel area sits above your firebox, providing a sloping pathway for fireplace byproducts to escape. Unfortunately, the smoke chamber can crack and spall over time, leaving the surface rough and full of gaps. Rely on us for smoke chamber repair and parging services, ensuring a smoother surface for smoke and fumes to travel on.
What Happens if I Have a Damaged Smoke Chamber?
The problem with a damaged smoke chamber is that rough surfaces, holes, and cracks cause resistance and slow down the passage of smoke and gases. The following issues can occur if the smoke chamber isn’t parged or smoothed out by a professional:
Soot & Creosote Buildup
Smoke and soot will settle into the cracks and crevices in the walls, encouraging creosote buildup.
Structural Decay
Corrosive byproducts in smoke can eat away at the mortar between the bricks in a damaged chamber.
Smoke Backdrafting
A corbeled design can push smoke and gases (like carbon monoxide) back into your home and air supply.
Heating Inefficiency
Rough surfaces push cold air back down into the firebox, making it harder to start fires and causing them to burn less efficiently.
How Does Ceaser Chimney Repair a Smoke Chamber?
Smoke chambers used to be built in a step-like pattern. Nowadays we know that this can cause resistance for exiting smoke and byproducts, causing them to linger in this area longer and trigger backdrafting and damage.
Building codes now require corbeled or damaged smoke chambers to be parged smooth using an insulating, high-temperature mortar. Here at Ceaser Chimney Service, we restore and repair damaged and corbeled smoke chambers using professional products from ChimneySaver.
Cerfractory Foam Smoke Chamber Sealant
This product is a spray-on sealant that expands to fill gaps and cracks, providing a smooth, insulated surface. The advantage of this is that it insulates and repairs smoke chambers that would otherwise be very difficult to access. This smoke chamber sealant is environmentally friendly, made from recycled and naturally occurring materials, and can withstand temperatures upwards of 2,900 degrees F. When professionally applied, the product carries a 20-year limited warranty.
Chamber Coat
This product is a refractory mortar that’s typically applied with a trowel, and is used to repair smoke chambers and provide a smooth, insulated surface – free of gaps, cracks, or holes. Chamber Coat resists temperatures up to 2,550 degrees F and is an excellent option for smoke chambers that need to be resized and reshaped.
Peace of Mind, One Flue at a Time
Are you looking for an experienced, certified, and reputable chimney chimney to perform your next chimney repair? Ceaser Chimney Service is proud to provide customers throughout the greater Manchester area with peace of mind – one flue at a time.
Call (603) 518-5773 or use our online appointment request form to get your next chimney or fireplace repair scheduled today!
Frequently Asked Questions
We’ve rounded up the most common inquiries to help you understand how important smoke chamber parging is for your fireplace system.
What is a smoke chamber, and what does it do?
The smoke chamber is the funnel-shaped cavity located directly above your fireplace’s firebox – just below the flue. Its job is to compress the byproducts of combustion (smoke, gases, and particulates) and guide them up to the chimney flue.
Think of it as a transition zone between your firebox and the flue. When it’s working properly, it improves draft and keeps harmful gases moving in the right direction – out of your home. When it’s damaged, corbeled, or porous, it can encourage buildup and allow heat and carbon monoxide to migrate into surrounding areas.
What does “parging” a smoke chamber mean?
Parging refers to the process of applying a smooth coat of high-temperature, insulating sealant to the interior surfaces of the smoke chamber. Many older smoke chambers were built with a corbeled design – meaning the bricks were stacked in rough, step-like layers – which creates an uneven, inefficient surface that’s prone to heat transfer and gas leakage.
Parging fills in those gaps, cracks, and rough edges to create a smooth, insulated, code-compliant surface. At Ceaser Chimney Service, we use professional-grade products from ChimneySaver to ensure the job is done right the first time.
Is smoke chamber parging required by building codes?
Yes. Current building codes require that corbeled or damaged smoke chambers be parged smooth using an insulating, high-temperature mortar. This requirement exists because an uneven or deteriorated smoke chamber poses real risks: it transfers excessive heat to nearby combustible materials, allows harmful gases to seep into the home, and reduces the overall efficiency and safety of your fireplace system. If your smoke chamber hasn’t been inspected or repaired to meet current standards, it may be out of compliance.
How do I know if my smoke chamber needs to be repaired or parged?
The most reliable way to know is through a professional chimney inspection. A certified chimney sweep can visually examine the smoke chamber for cracks, spalling mortar, corbeled construction, and deterioration. Warning signs you might notice yourself include poor draft, smoke backing up into the room, unusual odors, or visible damage around the damper area. If your home is older and has never had the smoke chamber professionally evaluated, it’s worth scheduling an inspection with Ceaser Chimney Service.
Can I use my fireplace if my smoke chamber is damaged?
We strongly advise against it. A cracked, corbeled, or deteriorated smoke chamber is a genuine fire and health hazard. Gaps and cracks in the smoke chamber walls allow heat to transfer to surrounding wood framing and other combustible materials, which can lead to a house fire – sometimes without any visible warning signs.
In addition, damaged smoke chambers can also allow carbon monoxide and other combustion gases to seep into your living space. If your smoke chamber has been flagged as damaged or out of compliance, the safest course of action is to have it repaired before your next fire. Ceaser Chimney Service can assess the damage and get it back to code-compliant condition.
Have more questions? We’re here to help!
Why Choose Ceaser Chimney Service & Repair?
When you invite us into your home, you’re choosing a team that values safety, quality, and customer satisfaction above all else.
Certified Technicians
We employ CSIA-certified technicians that complete regular training on best industry practices.
50+ Years in Business
The hearth store has been serving the area with care and dedication for over 50 years.
Fully Insured
We have full insurance coverage to ensure both the safety of our team and our customers.
Satisfaction Guarantee
We stand behind our work with a complete 100% satisfaction guarantee.
What Our Customers Say
See why homeowners trust Ceaser Chimney for their fireplace and chimney needs. Real reviews from real customers.
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Worried About the Condition of Your Smoke Chamber?
If you think your smoke chamber may be damaged, corbeled, or otherwise dangerous and ineffective, give us a call, and our certified chimney and venting specialists will inspect your the area, identify weaknesses and damage, and recommend the best repair and restoration solutions.
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Contact Information
Mon – Fri: 8am – 5pm
Sat & Sun: Closed
Our Service Area
We’re based in Manchester and proudly serve our neighbors in Exeter, Chester, Candia, Auburn, Goffstown, Merrimack, Bedford, Concord, Nashua, and the surrounding communities. Learn more about our full service area today.
Our chimney or fireplace repair services cover your whole system from the damper to the chimney cap.