Customer Satisfaction
Built on tailored solutions and long-term support.
Every home and building has its own wind exposure, orientation, noise levels, and design intent — which is why we treat each project as its own brief rather than a catalogue order. TOSTEM's engineering team accounts for a site's specific wind-load and weather conditions before a single unit is fabricated, and we carry that same tailored approach into every conversation with our clients.
TOSTEM operates a state-of-the-art testing facility for doors and windows and, as part of its transparency policy, invites clients to see that testing for themselves — water tightness, air tightness, and sound insulation, all measured on full-size samples rather than small swatches. We believe in that same transparency: what we quote, engineer, and install is what you should expect to live with for decades.
Long after installation, our relationship with a client doesn't end at handover — from adjustments and servicing to guidance on care, we remain the same point of contact you started with.
What this looks like on site.
Every recommendation shaped by how you actually live in the space.
Long-term support that continues well past installation day.
Solutions tailored to the site, not a fixed catalogue order.
How we deliver it.
Tailored to the site
Recommendations are based on your building's actual wind, weather, and noise exposure — not a one-size-fits-all product line.
Transparent testing
TOSTEM tests full-size samples for water tightness, air tightness, and sound insulation, and welcomes clients to see the process.
Responsive after-sales support
Questions or adjustments after installation are handled by the same team that installed your project, not a separate helpdesk.
Built for the long term
TEXGUARD-coated finishes and EPDM gaskets are engineered to hold their colour, seal, and function for decades, not just through the warranty period.