Over 50 years of experience

Since 1967, we’ve delivered trusted geotechnical engineering and materials testing services across the Okanagan and Central Interior region. Our team provides the data and expertise to build with confidence.

Call 250-860-6540
our services
our Services

For all your project needs

Expert consulting, precision testing, and proven solutions to keep your projects moving forward.

All Services
Geotechnical engineering

Our expert geotechnical engineering services are tailored to meet your project’s needs big or small.

material testing services

Our laboratory is equipped with specialized equipment and qualified personnel for precise results.

50+

Years Of Experience

Your trusted local partner since 1967.

our experience

Proven Expertise.
Trusted Results.

Interior Testing Services combines deep technical knowledge with reliable, responsive service. Since 1967, we’ve supported countless successful projects across the Okanagan and Central Interior region, from residential developments to major infrastructure initiatives.

  • CCIL-certified laboratory delivering precise soil and materials testing
  • Comprehensive geotechnical services backed by decades of expertise
  • Trusted partner to communities, developers, and government agencies
about our company

Serving the Okanagan & Central Interior regions For More
Than 50 Years

Interior Testing Services Ltd. (ITSL) is a company located in Kelowna, serving the Okanagan and Central Interior regions since 1967. We specialize in materials testing and geotechnical engineering. Our range of services includes consultation, design, and construction related services within these fields. Additionally, we have a materials testing laboratory certified by CCIL, enabling us to carry out tests on soil, concrete, and asphalt. Our laboratory is staffed by qualified personnel and equipped with specialized equipment.

Questions? Call Us:

250-860-6540

Trusted Geotechnical Solutions Engineered for Your Project Success

Services

Services we offer

Geotechnical Engineering Services
  • Field investigations
  • Foundation design and bearing surface inspections
  • Slope evaluation and stability
  • Ground improvement
  • Seismic analysis
  • Piling design and field reviews
  • Expert witness services
  • Block wall (mechanically stabilized earth) designs and reviews
  • Pavement structure design
  • Field reviews of engineered fills
Material Testing Services
  • Compaction testing, based on standard or modified proctor densities
  • Grain size and gradation
  • Evaluation of recycled concrete or asphalt as aggregate
  • Atterberg Limits
  • Concrete spot checks for quality
  • Compression testing
  • Concrete mix design review
  • CCIL certified asphalt checks for quality
  • Sieve analysis
  • And much more
our Projects

Making Impact from the Ground Up

Decades of successful projects across British Columbia’s Interior, serving communities and driving development forward.

ENGINEERING SERVICES

  • Ellis Street Parkade and Library Parkade Expansion
    Location | Kelowna
  • Kelowna Yacht Club Building
    Location |  Kelowna
  • Satikw Channel Crossing
    Second bridge crossing over Penticton Channel
    Location | Penticton
  • Okanagan College, Trades Building
    Location | Kelowna Campus
  • Okanagan Lake Landing Shopping Centreg
    Location | West Kelowna
  • Okanagan College, Centre of Excellence
    Project striving for LEED Platinum and Living Building Challenge    Location | Penticton Campus

MATERIALS TESTING

  • Subdivision Development
    Structural fills and roadway pavement structures
    Location | Salmon Arm & Revelstoke south through to Osoyoos
  • Osoyoos Cottages Subdivision
    Location | 2450 Radio Tower Road, Oliver, BC
  • Skaha Hills Subdivision
    Location | Penticton
  • Road Construction Projects
    Location | Kelowna, Penticton & Vernon
  • Highway 6 Realignment
    Location | Coldstream
  • Highway 97 Realignment
    Location | Winfield to Oyama
Contact us

Have a Question?
Contact Us!

Our team of geotechnical engineers and materials testing experts is here to support your next project. Whether you need soil testing, foundation design, or comprehensive engineering services, we’ll provide the expertise and solutions you need. Contact us today to discuss how we can help ensure your project’s success.

Call: 250-860-6540 Email: info@interiortesting.com
Contact us

Have questions?

Call

250-860-6540

Email

info@interiortesting.com