“HeatShield” by SaverSystems is a chimney repair / restoration system / product line that helps restore and seal damaged flue liners, fill cracks, gaps, or deteriorated mortar, and resurface the interior of chimneys.
⚠ This service requires a minimum of four separate site visits spread over approximately 10–14 days.
The wait times between visits are not scheduling delays — they are a required part of the process.
The Four-Visit Process
Day 1 — Chemical Application
- Full setup of roof access and specialized chimney equipment
- Application of Poultice Creosote Remover (PCR) — a powerful chemical agent that penetrates and breaks down hardened, glazed, or third-degree creosote deposits bonded to the flue walls
- Controlled application throughout the length of the flue
- Safe handling and containment of industrial-grade chemical agents
- Equipment cleanup and breakdown
Labor: 2 technicians · 6–8 hours per visit
After this visit, the PCR must remain in contact with the creosote for 2–5 days to fully react. The chemistry works slowly and deeply — cutting this short produces incomplete breakdown and compromises adhesion in later phases. Visit 2 is typically scheduled 4–5 days after Visit 1.
~4–5 Days After Visit 1
- Re-mobilization and full equipment setup
- Removal of all loosened and chemically broken-down creosote from the flue interior
- Application of etching agents to prepare the flue surface for maximum bonding
- Final inspection of the prepared surface before coating begins
- Equipment cleaning and breakdown
Labor: 2 technicians · 6–8 hours per visit
Visit 3 (the first refractory coat) can be performed immediately after Visit 2 — the same day or the following day — once the etching agent has dried. No multi-day wait is required between Visits 2 and 3.
Same Day or Day After Visit 2
- Setup of application equipment and ceramic refractory materials
- Application of the first refractory coat — a ceramic-based cement that bonds directly to the etched flue surface
- Controlled installation to ensure proper, uniform thickness throughout the flue
- This “scratch coat” creates the mechanical bond that anchors the final coat
- Equipment cleaning and breakdown
Labor: 2 technicians · 6–8 hours per visit
The scratch coat must cure fully before the final coat is applied — typically 2–4 days. Applying the second coat too early will prevent proper bonding and can cause the finish coat to separate or crack over time. This cure period is not optional.
2–4 Days After Visit 3
- Final mobilization and equipment setup
- Application of the second refractory coat to achieve the finished flue diameter, smooth surface, and final fire-rated thickness
- Full cleanup of the chimney system and jobsite
- Final inspection and documentation
- System is ready for use after the final coat fully cures
Labor: 2 technicians · 6–8 hours per visit
Total Labor Investment
4 site visits · 2 technicians per visit · 6–8 hours per visit · Total: ~24–32 technician hours
Each visit requires full equipment mobilization to the roof, manual transport of materials, careful chemical handling, and complete cleanup. The multiple mobilizations are inherent to the process — the system cannot be applied in a single visit.
Key Factors That Influence Labor & Timing
- Multiple separate roof and chimney mobilizations required
- Manual transport of equipment and materials at each visit
- Industrial-grade chemical agents require proper PPE and handling procedures
- Mandatory reaction and cure times between phases — cannot be accelerated
- Precision application required for fire-safety compliance and long-term durability
- Flue length, diameter, and degree of creosote buildup can affect time on-site
