
CSA B139 & TSSA Compliance Upgrades
Bringing older systems up to current code.
Fuel systems installed decades ago were built to the requirements of their time. When an inspection identifies deficiencies, the owner needs a contractor who understands how one correction affects the rest of the system. Premier Mechanical evaluates the findings, proposes practical corrective work, completes it, and provides documentation so the deficiencies can be closed.
Who This Service Is For
- Owners who have received a deficiency or distributor inspection report
- Property managers planning ahead of a ten-year inspection
- Consultants preparing upgrade specifications for older systems
Situations We Resolve
- Missing or inadequate secondary containment for tanks or piping
- Venting that is undersized, poorly routed or improperly terminated
- Missing valves or safety devices expected in a current installation
- Obsolete transfer pumps, controls or alarms
- Tanks or piping showing corrosion or physical damage
What the Work Includes
Evaluation of findings
Each cited deficiency is reviewed on site so the correction addresses the actual condition.
Corrective work
Replacement or modification of tanks, piping, venting, valves, containment and controls as required.
Engineering and variances
Where a correction needs engineering input or a variance, we identify it early and coordinate it.
Close-out documentation
Records of the completed work for the owner, the fuel distributor and the inspection file.

How a Project Proceeds
Report review
We review the inspection or deficiency report and any compliance deadline it sets.
Site evaluation
We confirm each finding on site and check for related conditions the report may not mention.
Corrective plan
We propose a scope that corrects the deficiencies without creating new ones elsewhere in the system.
Completion
Work is scheduled around the building's operations and the deadline, then completed and checked.
Documentation
We provide documentation describing the corrected items so the file can be closed.
Working in Occupied Facilities
Compliance work is usually done in buildings that stay open. We plan any generator or fire-pump outage with the facility team and arrange temporary measures where the equipment must remain available.
Related Projects
Related Guides
- What Happens During a Ten-Year Fuel-Oil System Inspection?Understanding the regulatory requirements and what inspectors look for in emergency power fuel systems.Read more
- Common Deficiencies in Older Emergency-Generator Fuel SystemsFrom lack of containment to improper venting, here is where legacy systems most often fail compliance.Read more
- What a CSA B139 Fuel-System Upgrade InvolvesA practical guide to bringing an aging generator or fire pump fuel system up to current code standards.Read more
Discuss This Service
Ready to review a project or schedule an assessment for your facility?
Helpful to Include in Your Inquiry
- Site address and facility type
- Equipment served (generator, fire pump or both) and approximate tank sizes
- Any inspection, deficiency or distributor report you have received
- Photos of the tanks, piping, pumps and controls, if available
- Required completion date or any deadline from an order or inspection
- Known access restrictions, shutdown windows or occupancy constraints
