What a full siding replacement actually involves
Replacement is more than swapping old panels for new ones. Once the existing siding comes off, we can see the sheathing and house wrap underneath, which older Ottawa homes often haven’t had exposed since they were built. Any water-damaged sheathing, gaps in the moisture barrier, or missing insulation get flagged before new siding goes on, since covering a problem instead of fixing it just moves the repair down the road. A full replacement is also the point where most homeowners switch materials, commonly moving from aging aluminum or early-generation vinyl to a modern insulated or fiber cement product.