HeatShield Chimney Liner Repair & Relining
Chimney liners are essential safety components in chimney systems. While stainless-steel flue liners are now popular, many chimneys in the Cleveland area still use clay tile liners. When these clay liners crack or fail, it can lead to serious issues. Riaz Chimney and Masonry offers comprehensive HeatShield liner repair and relining services, supervised by our National Chimney Sweep Guild Certified Chimney Reliner. Here’s what you need to know about this important service.
How HeatShield Works
Mortar Joint Repair
For mortar joint repair, HeatShield is applied with a foam blade that pushes the sealant into gaps within the joints. When done correctly, this completely fills in and smooths out the affected mortar joints.
Complete Relining
For relining the entire flue, a plug is placed at the bottom of the flue and attached to a winch at the top. Sealant is poured in, and the plug is drawn up, evenly coating the flue surfaces. A ceramic insulation sleeve is then added on top of the sealant. Finally, a second coating of sealant is applied over the sleeve.
Chimney Liner Inspection
A video inspection of the chimney liner should be performed if you notice any of the following:
- Chunks of tiles in your firebox
- The chimney is drafting sluggishly
- Smoke is backing up into the home
If pieces of flue tiles are in the firebox, there’s definitely a problem with your liner. Sluggish drafting and smoke backups could point to a liner issue, but there can be other causes, such as obstructive debris and creosote buildup in the flue. A proper inspection will tell us what we’re dealing with.
Video Inspection Before & After HeatShield
The Danger of a Damaged Clay Tile Chimney Liner
After years of intense heat and possibly a number of small chimney fires, clay tile chimney liners can begin to crack, split and fall apart. This can lead to big problems, including:
- Deadly carbon monoxide – This gas will easily escape from a compromised liner and move into the air within your home.
- Heat and flames – A liner with breaks and gaps will allow heat and flames to come into contact with the chimney’s interior masonry surfaces and adjacent home building materials.
- Acids – Creosote and certain combustion gases, which are all highly acidic, can also escape a damaged liner and harm the chimney masonry and parts of the home.
- Rough surfaces – Compromised clay tile liners often have rough surface areas that can cause smoke to draft inefficiently and back up into the home.
The Solution is HeatShield
Riaz Chimney and Masonry has had phenomenal success with HeatShield Cerfractory Flue Sealant for repairing clay tile liners and relining entire systems. HeatShield has become the industry standard for addressing mortar joint damage as well as system-wide deterioration of clay liners.
CORE SERVICES

Chimney Sweep
Ensure optimal draft and safe combustion with our precision cleaning process that removes loose soot and debris from your flue.

Chimney Cap Cleaning
An intensive cleaning protocol targeting heavy deposits in frequently used systems to maintain structural integrity.

Chemical Creosote Removal
Eliminate highly flammable glazed creosote that poses a critical fire risk using specialized chemical and mechanical treatments.

Chimney Inspections
Advanced Level 2 scans utilize HD cameras to detect hidden cracks, leaks, or structural vulnerabilities.

Stove & Fireplace Cleaning
Detailed maintenance for stoves and fireplace inserts to ensure maximum heat output and smoke-free operation.

Annual Maintenance
Scheduled care packages including priority booking and recurring evaluations for year-round safety insurance.
SAFETY FIRST
FIRE PREVENTION
Removing flammable creosote is the single most effective way to prevent chimney fires. Professional sweeping eliminates corrosive fuel buildup before it compromises your home’s integrity.
CARBON MONOXIDE PROTECTION
Our meticulous cleaning ensures that lethal carbon monoxide and other invisible combustion byproducts are safely vented away from your living space, protecting your family from inhalation risks.
BETTER DRAFT
Clear chimney flues create superior draft, allowing your wood stove or fireplace to burn more efficiently, providing more heat with less fuel while ensuring smoke doesn’t enter the room.
SYSTEM LIFE
Regular removal of acidic soot and moisture-trapping debris prevents long-term erosion and structural deterioration, extending the life of your chimney liner and architectural masonry.
The Riaz Advantage
Available 'round the Clock
Emergency Assistance Available: Our rapid response team handles urgent obstructions and structural issues, ensuring your safety and peace of mind.
100% Satisfaction Guaranteed
Satisfaction Guarantee: We ensure that every chimney is safe, efficient, and consistently exceeds customer expectations for quality and performance.
Free Consultations
We offer free consultations to assess your chimney and masonry needs. Contact us today for expert advice and solutions!
Is it Time for HeatShield Liner Service?
If you have any questions or would like to schedule expert service, please feel free to give us a call at (440) 384-7200, or get in touch with our contact form.
Masonry
