Start with the rise at the entrance you use most. A safe ramp follows roughly a 1:12 slope, so a higher porch needs a longer run and often a switchback with a level landing to turn. Burnaby's hilly lots and split-level homes can complicate this. A raised front entry in Capitol Hill or a walk-out grade in South Burnaby changes the design entirely, so let an installer measure on site rather than guessing from photos.
The big call is modular versus permanent. In our experience, modular aluminum ramps are the smarter choice for most families here. They install quickly, don't rot in our damp climate, come apart and resell if needs change or a parent moves, and rarely need a permit. A permanent wood or concrete ramp can look more built-in and suit a long-term stay, but it's slower, costlier, and harder to undo. The honest trade-off with modular is looks. Aluminum won't blend into a heritage-style porch the way custom wood can, though a good installer can soften that with railings and colour.
Whatever you choose, insist on a non-slip surface, sturdy handrails on both sides, and flat landings at the door and any turn. Those details matter more in Burnaby, where autumn leaves and winter drizzle make surfaces slick. When comparing installers, prioritize real accessibility experience with seniors, proper licensing and liability insurance, a clear warranty, and a quick service response if a fastener or rail ever loosens.
Our recommendation: go modular from an installer who does accessibility work full time, not a general handyman adding ramps on the side. You'll pay a bit more than a basic build, but you get correct slope, weather-ready materials, and the freedom to remove or resell later. If your parent is settling in permanently and the look really matters, a custom ramp is a fair second choice.