Everyone wants their renovation to "look like it was always here." They want it to be "seamless." I love hearing that, because it’s the hardest and most rewarding part of the job. But "seamless" is a high-craft, time-consuming, and deliberate act. It never happens by accident.
We did a whole-home renovation on a 1990s house that had incredible, custom-milled crown molding and baseboards. The new office addition, however, needed to have exactly the same profile. You can't just go to a big-box store and buy it.
Our initial search came up empty; the company that made it was long gone. So, we had to recreate it. This meant our trim carpenter had to carefully remove a piece of the original, send it to a specialty millwork shop, and pay to have a custom knife ground—a unique blade that only cuts this one profile. Then, they ran the new stock, and our painter had to use a complex, multi-step process to match the 30-year-old patina.
It's an incredible amount of work for something that, if we do our job right, nobody will ever notice.
My professional recommendation: When you're vetting a contractor for a renovation, don't just look at their "before and after" photos. Ask them to point out where the old meets the new. Ask them how they handled matching an "un-matchable" material, whether it was flooring, trim, or roof tile. If they can't give you a specific, detailed story, they're not a true renovation expert.