The Thermowood cladding we use in our Echo is maintenance free. Likewise, the Siberian Larch cladding that we use in our Echo+ can be left to weather without a finish. If you choose not to treat/stain your garden room every couple of years, it will weather to a silvery grey colour. If you'd prefer to retain the original finish, this will need staining.
However, if you want to add some colour to your Echo+, that’s absolutely fine; the world of paint is your oyster! We have alternative cladding options available if larch, or even timber, doesn’t fit your aesthetic. Just let us know and we’ll see what we can do!