I had Bytown install a large vinyl fence in my yard in 2007. I was told it was warrantied for 20 years. During installation they cut through an underground power line disrupting power to my house. They also hand dug several post holes, (at a premium cost), to avoid hitting other utilities. They had a lot of difficulty installing one particular post due to an obstruction in the ground and shortened the post length.
For nine winters I have watched the post heave and almost spectate from the adjoining fence section. The fence section broke off the post this past winter.
I called Bytown and they confirmed the warranty was still in effect and would be in touch. They didn't return calls and I let it slide until September. With the thought of another winter coming I have called them frequently for two months now looking for resolution. After two months of promises they still haven't looked at or fixed the problem.
Needless to say, I would not recommend this company based on their poor warranty performance.