THOMPSON BOILER WORKS INC

Address:
5678 POWER RD
GLOUCESTER
Canada
K1G 3N4
TSSA BPV Certification Number Certificate Type Scope Description Expiry Date
QA-01951

Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)

Repair and alteration of boilers, pressure vessels, piping and category A, B, C, D, E, F & H fittings at the above location and for repairs and alterations at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.

09-15-2026

QA-01949

Power Piping Installation ASME B31.1 (SHOP & FIELD)

Fabrication, assembly and repair of power piping at the above location and fabrication, assembly, erection and repair of power piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.1 Power Piping.

09-15-2026

QA-05593

ASME A-1-Section I Boiler Assembly (FIELD ONLY)

Assembly of power boilers at field sites controlled by the above location only in accordance with ASME Boiler and Pressure Vessel Code, Section I, and CSA Standard B51, Boiler, Pressure Vessel, and Pressure Piping Code.

09-15-2026

QA-01950

Process Piping Installation ASME B31.3 (SHOP & FIELD)

Fabrication, assembly and repair of process piping at the above location and fabrication, assembly, erection and repair of process piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.3 Process Piping.

09-15-2026

QA-06144

ASME H-6-Section IV Boiler Assembly (FIELD ONLY)

Assembly of heating boilers including cast iron and cast aluminium at field sites controlled by the above location only in accordance with ASME Boiler and Pressure Vessel Code, Section IV and CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.

09-15-2026

THOMPSON BOILER WORKS INC

Address:
5678 POWER RD
GLOUCESTER
Canada
K1G 3N4
TSSA BPV Certification Number Certificate Type Scope Description Expiry Date
QA-01951

Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)

Repair and alteration of boilers, pressure vessels, piping and category A, B, C, D, E, F & H fittings at the above location and for repairs and alterations at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.

09-15-2026

QA-01949

Power Piping Installation ASME B31.1 (SHOP & FIELD)

Fabrication, assembly and repair of power piping at the above location and fabrication, assembly, erection and repair of power piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.1 Power Piping.

09-15-2026

QA-05593

ASME A-1-Section I Boiler Assembly (FIELD ONLY)

Assembly of power boilers at field sites controlled by the above location only in accordance with ASME Boiler and Pressure Vessel Code, Section I, and CSA Standard B51, Boiler, Pressure Vessel, and Pressure Piping Code.

09-15-2026

QA-01950

Process Piping Installation ASME B31.3 (SHOP & FIELD)

Fabrication, assembly and repair of process piping at the above location and fabrication, assembly, erection and repair of process piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.3 Process Piping.

09-15-2026

QA-06144

ASME H-6-Section IV Boiler Assembly (FIELD ONLY)

Assembly of heating boilers including cast iron and cast aluminium at field sites controlled by the above location only in accordance with ASME Boiler and Pressure Vessel Code, Section IV and CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.

09-15-2026

THOMAS MAINS LIMITED

Address:
117 MAIN ST E
DUNNVILLE
Canada
N1A 1J8
TSSA BPV Certification Number Certificate Type Scope Description Expiry Date
QA-03944

Power Piping Installation ASME B31.1 (SHOP & FIELD)

Fabrication, assembly and repair of power piping at the above location and fabrication, assembly, erection and repair of power piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.1 Power Piping.

08-29-2026

QA-03945

Process Piping Installation ASME B31.3 (SHOP & FIELD)

Fabrication, assembly and repair of process piping at the above location and fabrication, assembly, erection and repair of process piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.3 Process Piping.

08-29-2026

QA-03946

Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)

Repair and alteration of boilers, pressure vessels, piping and Category A, B, E and H type fittings at the above location and for repairs and alterations at field sites controlled by this location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.

08-29-2026

THOMAS MAINS LIMITED

Address:
117 MAIN ST E
DUNNVILLE
Canada
N1A 1J8
TSSA BPV Certification Number Certificate Type Scope Description Expiry Date
QA-03944

Power Piping Installation ASME B31.1 (SHOP & FIELD)

Fabrication, assembly and repair of power piping at the above location and fabrication, assembly, erection and repair of power piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.1 Power Piping.

08-29-2026

QA-03945

Process Piping Installation ASME B31.3 (SHOP & FIELD)

Fabrication, assembly and repair of process piping at the above location and fabrication, assembly, erection and repair of process piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.3 Process Piping.

08-29-2026

QA-03946

Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)

Repair and alteration of boilers, pressure vessels, piping and Category A, B, E and H type fittings at the above location and for repairs and alterations at field sites controlled by this location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.

08-29-2026

THOMAS MAINS LIMITED

Address:
117 MAIN ST E
DUNNVILLE
Canada
N1A 1J8
TSSA BPV Certification Number Certificate Type Scope Description Expiry Date
QA-03944

Power Piping Installation ASME B31.1 (SHOP & FIELD)

Fabrication, assembly and repair of power piping at the above location and fabrication, assembly, erection and repair of power piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.1 Power Piping.

08-29-2026

QA-03945

Process Piping Installation ASME B31.3 (SHOP & FIELD)

Fabrication, assembly and repair of process piping at the above location and fabrication, assembly, erection and repair of process piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.3 Process Piping.

08-29-2026

QA-03946

Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)

Repair and alteration of boilers, pressure vessels, piping and Category A, B, E and H type fittings at the above location and for repairs and alterations at field sites controlled by this location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.

08-29-2026

THOMAS LEMMON & SONS ( 1973 ) LTD

Address:
765 MONTREAL ST
KINGSTON
Canada
K7K 3J6
TSSA BPV Certification Number Certificate Type Scope Description Expiry Date
QA-05528

Power Piping Installation ASME B31.1 (SHOP & FIELD)

Fabrication, assembly and repair of power piping at the above location and fabrication, assembly, erection and repair of power piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.1 Power Piping.

08-01-2026

QA-05529

Process Piping Installation ASME B31.3 (SHOP & FIELD)

Fabrication, assembly and repair of process piping at the above location and fabrication, assembly, erection and repair of process piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.3 Process Piping.

08-01-2026

QA-05530

Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)

Fabrication, assembly and repair of refrigeration piping at the above location and fabrication, assembly, erection and repair of refrigeration piping at field sites controlled by the above location in accordance with CSA Standard B52, Mechanical Refrigeration Code and ASME B31.5 Refrigeration Piping.

08-01-2026

QA-05531

Medical Gas Piping Installation CSA-Z7396.1 (SHOP & FIELD)

Fabrication, assembly and repair of medical gas piping at the above location and fabrication, assembly, erection and repair of medical gas piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and CSA-Z7396.1 Medical Gas Pipeline Systems.

08-01-2026

THOMAS LEMMON & SONS ( 1973 ) LTD

Address:
765 MONTREAL ST
KINGSTON
Canada
K7K 3J6
TSSA BPV Certification Number Certificate Type Scope Description Expiry Date
QA-05528

Power Piping Installation ASME B31.1 (SHOP & FIELD)

Fabrication, assembly and repair of power piping at the above location and fabrication, assembly, erection and repair of power piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.1 Power Piping.

08-01-2026

QA-05529

Process Piping Installation ASME B31.3 (SHOP & FIELD)

Fabrication, assembly and repair of process piping at the above location and fabrication, assembly, erection and repair of process piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.3 Process Piping.

08-01-2026

QA-05530

Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)

Fabrication, assembly and repair of refrigeration piping at the above location and fabrication, assembly, erection and repair of refrigeration piping at field sites controlled by the above location in accordance with CSA Standard B52, Mechanical Refrigeration Code and ASME B31.5 Refrigeration Piping.

08-01-2026

QA-05531

Medical Gas Piping Installation CSA-Z7396.1 (SHOP & FIELD)

Fabrication, assembly and repair of medical gas piping at the above location and fabrication, assembly, erection and repair of medical gas piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and CSA-Z7396.1 Medical Gas Pipeline Systems.

08-01-2026

THOMAS LEMMON & SONS ( 1973 ) LTD

Address:
765 MONTREAL ST
KINGSTON
Canada
K7K 3J6
TSSA BPV Certification Number Certificate Type Scope Description Expiry Date
QA-05528

Power Piping Installation ASME B31.1 (SHOP & FIELD)

Fabrication, assembly and repair of power piping at the above location and fabrication, assembly, erection and repair of power piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.1 Power Piping.

08-01-2026

QA-05529

Process Piping Installation ASME B31.3 (SHOP & FIELD)

Fabrication, assembly and repair of process piping at the above location and fabrication, assembly, erection and repair of process piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.3 Process Piping.

08-01-2026

QA-05530

Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)

Fabrication, assembly and repair of refrigeration piping at the above location and fabrication, assembly, erection and repair of refrigeration piping at field sites controlled by the above location in accordance with CSA Standard B52, Mechanical Refrigeration Code and ASME B31.5 Refrigeration Piping.

08-01-2026

QA-05531

Medical Gas Piping Installation CSA-Z7396.1 (SHOP & FIELD)

Fabrication, assembly and repair of medical gas piping at the above location and fabrication, assembly, erection and repair of medical gas piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and CSA-Z7396.1 Medical Gas Pipeline Systems.

08-01-2026

THOMAS LEMMON & SONS ( 1973 ) LTD

Address:
765 MONTREAL ST
KINGSTON
Canada
K7K 3J6
TSSA BPV Certification Number Certificate Type Scope Description Expiry Date
QA-05528

Power Piping Installation ASME B31.1 (SHOP & FIELD)

Fabrication, assembly and repair of power piping at the above location and fabrication, assembly, erection and repair of power piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.1 Power Piping.

08-01-2026

QA-05529

Process Piping Installation ASME B31.3 (SHOP & FIELD)

Fabrication, assembly and repair of process piping at the above location and fabrication, assembly, erection and repair of process piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.3 Process Piping.

08-01-2026

QA-05530

Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)

Fabrication, assembly and repair of refrigeration piping at the above location and fabrication, assembly, erection and repair of refrigeration piping at field sites controlled by the above location in accordance with CSA Standard B52, Mechanical Refrigeration Code and ASME B31.5 Refrigeration Piping.

08-01-2026

QA-05531

Medical Gas Piping Installation CSA-Z7396.1 (SHOP & FIELD)

Fabrication, assembly and repair of medical gas piping at the above location and fabrication, assembly, erection and repair of medical gas piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and CSA-Z7396.1 Medical Gas Pipeline Systems.

08-01-2026

THERMON CANADA INC.

Address:
2721 PLYMOUTH DR
OAKVILLE
Canada
L6H 5R5
TSSA BPV Certification Number Certificate Type Scope Description Expiry Date
QA-03538

CSA-N285.0 Nuclear Fittings (SHOP ONLY)

Fabrication of Class 1, 2, 3 and 4 Welded and Non-Welded Category A, B, E and H type Fittings only at the above location only. In accordance with CSA Standard N285.0, General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants.

08-15-2027

QA-05091

CSA-N285.0 Nuclear Fitting Repair or Modification (SHOP ONLY)

Repair or Modification of Class 1, 2 and 3 Items and Welded and Non-Welded Category A, B, E and H type Fittings at the above location only. In accordance with CSA Standard N285.0, General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants.

08-15-2027

QA-181

Vessels, Pumps, Valves, Piping & Containment (N with NA)

Construction of Class 1, 2, 3 and 4 vessels; Class 1, 2, & 3 line valves and piping systems; Class 2 and 3 Storage Tanks; and Class 1, 2 and 3 Shop Assembly. At the above location only; With supporting code activities as described in the Quality Assurance Manual at (shop address). In accordance with CSA Standard N285.0, General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants.

08-15-2027

QA-04487

Parts, Appurtenances, Piping Sub’s & Tubular Prod’s (NPT with NA)

Fabrication of Class 1, 2 and 3 parts, appurtenances, piping subassemblies at the above location only. With and without design responsibility; With supporting code activities as described in the Quality Assurance Manual at (shop address); In accordance with CSA Standard N285.0, General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants.

08-15-2027

QA-03573

Power Piping Installation ASME B31.1 (SHOP & FIELD)

Fabrication, assembly and repair of power piping at the above location and fabrication, assembly, erection and repair of power piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.1 Power Piping.

10-30-2026

QA-02216

ASME U-1-Mfr. of Sec. VIII, Div 1 Pressure Vessels (SHOP ONLY)

Manufacture of pressure vessels at the above location only in accordance with ASME Boiler and Pressure Vessel Code, Section VIII, Division 1 and CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.

10-30-2026

QA-03574

Process Piping Installation ASME B31.3 (SHOP & FIELD)

Fabrication, assembly and repair of process piping at the above location and fabrication, assembly, erection and repair of process piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.3 Process Piping.

10-30-2026

QA-05067

ASME U2-1-Sec. VIII, Div 2 Pressure Vessel Mfr. (SHOP ONLY)

Manufacture of class 1 and class 2 pressure vessels at the above location only in accordance with ASME Boiler and Pressure Vessel Code, Section VIII, Division 2 and CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.

10-30-2026

QA-05198

Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)

Repair and alteration of boilers, pressure vessels, piping and A, B, C, D, E, F and H type fittings at the above location and for repairs and alterations at field sites controlled by this location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.

10-30-2026

QA-126

ASME S-1-Section I Boiler Manufacture (SHOP ONLY)

Manufacture and assembly of power boilers at the above location only in accordance with ASME Boiler and Pressure Vessel Code, Section I, and CSA Standard B51, Boiler, Pressure Vessel, and Pressure Piping Code.

10-30-2026

QA-02215

ASME H-1-Section IV Boiler Manufacture (SHOP ONLY)

Heating boilers except cast iron and cast aluminium at the above location only in accordance with ASME Boiler and Pressure Vessel Code, Section IV and CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.

10-30-2026

Address:
1 HUNTER VALLEY RD
ORILLIA
Canada
L3V 6H2
TSSA BPV Certification Number Certificate Type Scope Description Expiry Date
QA-04679

CSA-B51 Fittings

Fabrication of Welded and Non-Welded Category H type Fittings only at the Above Location Only. In accordance with CSA Standard B51 Boiler, Pressure Vessel and Pressure Piping Code.

06-13-2026