Repiping a historic peninsula house is a different discipline from repiping a suburban one, and the difference is everything you are trying not to damage.
Galvanised supply, closing from the inside
Original galvanised steel corrodes inward. Pressure drops gradually over years, water runs discoloured first thing, and two fixtures cannot run at once. Patching one section usually moves the failure a few feet along.
Routed around what matters
The skill is running new PEX or copper through existing chases, closets, and attic space so plaster, panelling and heart pine stay intact. That takes longer to plan and less time to repair afterwards. A quote that assumes opening every wall is quoting a different job from the one worth doing.
BAR and permitting
Interior repiping generally does not require Board of Architectural Review approval, but anything affecting the exterior envelope can. We will tell you where that line falls for your property before work starts rather than discovering it midway.
Phased is often sensible
On a large historic house, doing it floor by floor spreads cost and disruption. We can plan it that way if that suits you better.