Inspection, Repair & Maintenance Programs for Chimneys & Stacks
Chimneys and stacks are critical to the safe and efficient operation of power plants and industrial facilities. Over time, environmental and operational factors can cause deterioration, making regular inspection and maintenance essential to prevent safety incidents and costly unplanned downtime.
PULLMAN delivers comprehensive chimney and stack services designed to inspect, repair, and extend the service life of these vital structures.
Inspection
As a licensed partner of STRUCTURAL TECHNOLOGIES, PULLMAN provides customized inspection programs for industrial chimneys and stacks. Our inspections identify the root causes of deterioration, evaluate structural integrity, and recommend targeted repairs to restore performance and reliability.
Our industrial chimney inspection services include:
- Visual and drone-based inspections
- Non-destructive testing (NDT) and core sampling
- Flue liner and refractory evaluations
- Structural condition assessments and reporting
- Root cause analysis for corrosion or cracking
Regular inspections help facility operators detect issues early, schedule proactive maintenance, and prevent unexpected outages.
Repair & Maintenance Programs
Supported by advanced engineering from STRUCTURAL TECHNOLOGIES, PULLMAN delivers turnkey repair and maintenance solutions for industrial chimneys and stacks. Our teams provide both internal and external repairs to improve reliability and extend service life.
Chimney repair and maintenance capabilities include:
- Structural concrete and steel repairs
- Liner and flue replacement or rehabilitation
- Design and fabrication of custom access systems
- Installation of corrosion-resistant coatings and materials
- Chimney modernization and retrofit design for extended service life
All work is performed safely and efficiently, with minimal disruption to facility operations.
Turnkey Solutions
PULLMAN and STRUCTURAL TECHNOLOGIES offer a full-service Investigate–Design–Build (IDB) approach. From initial condition assessment to engineering and installation, clients benefit from a single-source solution for industrial chimney and stack projects. This integrated model helps operators reduce downtime, control costs, and ensure high-quality results.
Chimney Inspection Services
Chimney Field Inspections
PULLMAN offers specialized chimney and stack assessment services to help plan and prioritize repair programs in a manner that maximizes plant safety and efficiency. We provide one-time or ongoing inspections of all chimney components, including:
Inspection Reporting
When PULLMAN performs a comprehensive chimney assessment, our typical report includes:
Enhanced Inspection Services
PULLMAN now offers enhanced chimney inspections – a safe, rapid approach that provides full coverage visual inspections. Utilizing advanced cameras mounted to unmanned aerial vehicles or tethered, our team can provide rapid, total assessment of chimneys and stacks.
The data acquired allows our chimney experts to analyze the entire chimney structure and provide a full report, and to monitor specific conditions and identified issues on future inspections. Additionally, our team builds a digital model of the chimney which may be used to precisely identify locations and tests to perform additional if a more thorough, manned investigation is required.
Repair & Maintenance Programs for Existing Chimneys
Our team designs and implements efficient solutions to fix identified problems, improve safety or extend the service life of chimney and stack components, including:
Liner Upgrades & Replacement
Many chimneys, ducts and flue gas path systems were not designed to meet today’s operating conditions or stringent safety requirements. Upgrades or alterations to the liner systems can help meet these changing demands. Our team partners with owners, builders and designers of unit and plant modifications to work through all project details, including:
Ductwork Alterations & Replacement
As new units are added to existing facilities, PULLMAN provides comprehensive design-build delivery of new ductwork systems.
Our team address the complexities of working in operational facilities and incorporate all project aspects into our designs, including:
Support Infrastructure
PULLMAN designs, builds, repairs and maintains a wide variety of civil infrastructure for flue gas path systems, including:
Maintenance Planning
Our team designs efficient solutions to fix identified problems, improve safety or extend the service life of chimney and stack components, including:
Decommissioning
Chimneys and stacks that are no longer in service require ongoing maintenance programs to ensure they don’t become a hazard to safety and plant operations. In addition to regular inspections and repairs, our team offers long-term planning and modifications to chimneys and stacks removed from service, including:
Our Commitment to Safety & Preplanning
Throughout our history, PULLMAN has been the leading designer and builder of reinforced concrete chimneys, stacks, building cores, observation towers, silos, and more. Whether you are building a new structure, or planning to modify or repair an existing one, PULLMAN’s track record and experience provides you with a reliable source for turnkey engineering and construction services.
PULLMAN’s project management and field personnel carefully preplan every project. Our crews address all areas of concern during project pre-planning, including safety, constructability, budgeting, scheduling, and phasing as it relates to optimizing efficiency and potential disruption to ongoing operations.
PULLMAN crews have the manpower to complete projects under the tightest schedules or adjust and phase work to create work schedules that minimize disruption.