About Inland Technical Services
BC’s Specialist Commissioning and TAB Firm Since 1986.
Nearly four decades of independent commissioning, testing and balancing, and O&M documentation — built on a single principle: the people who verify a building’s systems should answer to the owner, not the contractor who installed them.
1986
Founded in Kamloops, BC
38+
Years of specialist field experience
10+
Full hospital towers commissioned
2
BC Interior offices — Kamloops & Kelowna
Our Story
Built in the Interior. Trusted Across BC.
Inland Technical Services was founded in Kamloops in 1986 by Henry and Vickie Pejril. What began as a testing and balancing firm serving the Thompson-Okanagan has grown into one of BC’s most experienced independent commissioning, TAB, integrated systems testing, and O&M documentation practices — with offices in Kamloops and Kelowna serving projects from Vancouver Island to the Yukon.
In 2020, Luke Buis took ownership of the firm, continuing the commitment to independent, technically rigorous building systems verification that has defined ITSL for nearly four decades. Under Luke’s leadership, ITSL has expanded its commissioning practice, deepened its healthcare expertise, and added integrated systems testing to its service offering.
Independence is the foundation of everything we do. Our technicians and commissioning providers report to the owner and engineer of record — not to the mechanical contractor who installed the systems we’re verifying. That independence is why healthcare authorities, engineers, and developers across BC specify ITSL by name.
Today, ITSL carries LEED AP BD+C credentials, AScT registrations, ACP designation, and membership in the Building Commissioning Association — and our owner serves as BCxA Western Canadian Chapter President. The firm is a BC Hydro Continuous Optimization Program approved vendor and a UL-certified body for CAN/ULC S1001 integrated systems testing.
1986
Founded in Kamloops
Henry and Vickie Pejril establish Inland Technical Services as a testing and balancing firm serving the BC Interior.
2009
Commissioning Practice Grows
Luke Buis and Stephan Neu join the firm, expanding commissioning capability alongside the established TAB practice.
2011
First Major LEED Gold
UBCO Health Sciences Building commissioning and TAB completed — establishing ITSL as a specialist LEED cx provider in the Okanagan.
2019
IST & O&M Divisions Added
Logan Wriglesworth and Sarah Loutfi join, building out integrated systems testing (CAN/ULC S1001) and O&M manual capabilities.
2020
New Ownership
Luke Buis acquires the firm from founders Henry and Vickie Pejril, continuing 34 years of established practice and client relationships.
2023
Royal Inland Hospital — LEED Gold
Completion of the Royal Inland Hospital Patient Care Tower — ITSL’s largest single-project commissioning and TAB scope to date.
How We Work
What Drives Every Engagement
Independence
We report to the owner and engineer — never the mechanical contractor. Our obligation is to the building, not the subcontract chain.
Technical Rigour
Every reading is documented. Every deficiency is tracked to resolution. Our reports are complete, defensible, and accepted without revision.
Field Presence
We’re based in the Interior and on-site throughout construction — not flying in for milestone visits and billing travel days.
Energy Responsibility
Buildings are among BC’s largest energy consumers. Well-commissioned and balanced buildings consume less — and that matters to us and to our clients.
Our Team
The People Behind the Work
Senior technicians, commissioning providers, project managers, and O&M specialists — most with a decade or more at ITSL.
Luke Buis
Owner & Senior Cx Provider
Owner since 2020, with ITSL since 2009. BCxA Western Canadian Chapter President. CSA Z5000/Z5001 contributor.
AScT
ACP
BCxA
Stephan Neu
General Manager & Senior Estimator
With ITSL since 2009. Leads project estimating, client relationships, and overall operations across both offices.
AScT
Shevaun Barrie
Office & Project Manager
With ITSL since 2009. Manages project administration, scheduling, and client coordination. LEED AP BD+C.
AScT
LEED AP
Sarah Loutfi
O&M Manual Division Manager
With ITSL since 2019. Leads the O&M manual division across healthcare, institutional, and commercial projects province-wide.
AScT
Logan Wriglesworth
Electrical & IMIT Cx / IST Lead
With ITSL since 2019. Leads CAN/ULC S1001 IST and electrical/IMIT commissioning with a mechanical engineering background.
B.A.Sc Mech
IST
Mike Beauchesne
Senior TAB Technician & Cx Provider
Multiple stints with ITSL since 1988. One of BC’s most experienced TAB technicians, with extensive healthcare and institutional project history.
AScT
Mike Starhiem
Senior TAB Technician & Cx Provider
With ITSL since 1987. Among the firm’s longest-serving field technicians with deep expertise in complex HVAC balancing for healthcare and institutional buildings.
AScT
Jamie Doerksen
TAB Technician & Cx Provider
Kelowna-based field technician specializing in air and hydronic balancing for commercial and healthcare projects throughout the Okanagan and Kootenay regions.
TAB
Ryan Thorburn
TAB Technician
Kamloops-based TAB technician with experience across education, healthcare, and municipal facilities. Skilled in VAV system calibration and fan performance verification.
TAB
Kelsey MacPherson
Commissioning Provider
Focused on LEED and institutional new construction. Experienced in OPR development, commissioning plan preparation, and functional performance testing.
Cx
LEED
David Lam
Commissioning Provider
Specializes in mechanical and electrical commissioning for healthcare facilities. Experienced in CSA Z8001 processes and BC Health Authority documentation requirements.
Cx
Healthcare
Tyler Crane
TAB Technician & Cx Provider
Dual-qualified in TAB and commissioning, working across both scopes on projects where ITSL is engaged for integrated delivery. Extensive LEED multi-unit residential experience.
TAB
Cx
Alicia Hennessey
O&M Manual Coordinator
Coordinates O&M manual production across multiple concurrent projects, working with contractors, suppliers, and engineers to compile compliant documentation packages.
O&M
Brett Fontaine
IST Technician
IST technician specializing in life safety — fire alarm, suppression, emergency lighting, and smoke control verification to CAN/ULC S1001. Kelowna-based.
IST
S1001
Natasha Reeves
Project Coordinator
Manages project scheduling, subcontract coordination, and client communication for the Kamloops office across active TAB and commissioning scopes.
PM
Greg Walton
Senior TAB Technician
Kamloops-based senior technician with particular expertise in healthcare pressurization and hydronic balancing across every major Interior Health facility in the Thompson region.
AScT
TAB
Priya Osei
Commissioning Provider
Kelowna-based commissioning provider on LEED residential and educational projects. Mechanical engineering knowledge applied to OPR review and FPT development.
Cx
LEED
Chris Mulligan
TAB Technician
Field technician specializing in air balancing on large commercial and institutional projects. Skilled in traversal methods, duct leakage testing, and VAV terminal calibration.
TAB
Ellen Kowalski
O&M Manual Specialist
O&M documentation specialist focused on healthcare facility manuals. Works with facilities management teams to ensure handover documentation meets operational and accreditation requirements.
O&M
Healthcare
Jordan Seto
TAB Technician & IST Support
Versatile field technician supporting both TAB and IST scopes, with experience in mechanical and life safety system verification on complex institutional projects across BC.
TAB
IST
Work With Us
A Specialist Team for Your Next BC Project.
Whether you need independent TAB, commissioning, integrated systems testing, or O&M documentation — ITSL has the credentials, the field presence, and the project history to deliver.