Whole-house renovation on the North Shore

Do the kitchen this year and the baths next year, and you open the same walls twice, run new circuits back to a panel you'll replace anyway, and patch plaster that is about to come off. A whole-house plan avoids that. We start with the house as it stands: a measured 3D model, the condition of the structure and systems, and the zoning and energy-code rules that will apply. Then we design every room together in our Design Studio, so the layout, the structure and the mechanical routes agree before anything is priced.

The scope varies a great deal. In West Peabody we added a second level and renovated the whole house. In Wenham a whole-house project took in the kitchen, a garage converted to an office, laundry, mudroom, a half bath, a finished basement and a basement bath. In Hamilton we are reworking a first floor to open the kitchen and living room, add a bedroom and a full bath, and move the laundry. Each one started with the same question: what has to be true about the whole house for this room to work?

Before the design gets far, we also check what the town will allow. A second story on a nonconforming lot may need a zoning finding. An exterior change in a local historic district needs a commission certificate before the building permit. Work near wetlands goes to the conservation commission. A house on septic that gains bedrooms has to clear Title 5 and the board of health. Each of these runs on its own calendar, and it is far better to know about them before a design is drawn around something the town won't approve.

Moving out is the fastest and cleanest way to renovate a whole house. Water, power and heat can be shut off when the work needs it, lead-safe containment is simpler, and the crew can work every room at once. It also costs you a rental and a move.

Staying is possible when the house allows a clean split. We phase the work so one bathroom always works, set up a temporary kitchen, seal each work zone with dust walls and keep a protected route through the house. It takes longer, and it asks more patience of everyone, especially with young children, pets or someone working from home. We lay out both options during design, with the phases on the schedule in your private project portal, so you can decide with the trade-offs in front of you.

In older North Shore houses a whole-house renovation is the time to replace what has outlived its life. That can mean knob-and-tube or ungrounded wiring, a 60- or 100-amp service, galvanized supply lines, cast-iron drains, and an oil boiler or steam system at the end of its run.

Many clients use the project to move to heat pumps, ducted or ductless. The right size depends on the house after it has been air sealed and insulated, so we size the equipment from a load calculation for the finished house, not the leaky one. That often brings the electrical service into the plan as well: heat pumps, an induction range and an EV charger together may need a larger panel and service.

The energy code depends on your town and your scope. Massachusetts towns are on the Base, Stretch or Specialized code; Danvers, Essex, Lynnfield and Middleton are among the Base-code towns, and most of the North Shore is Stretch or Specialized. Renovations of existing houses generally follow the code's alteration rules. A HERS rating with a blower-door test comes into play when an addition, or a Level 3 or extensive alteration, exceeds 1,000 square feet or 100 percent of the existing conditioned floor area. We confirm which path applies during design, and we bring the rater in early when one is needed.

Most pre-war houses here were built with no insulation and plenty of air leaks. When walls are open, insulating them is straightforward. When the plaster is staying, dense-packed cellulose blown into the stud bays can work, but only after the old wiring is dealt with. The attic is often where the biggest gains are: sealing top plates, chimney chases, plumbing and wire penetrations, and old recessed lights before insulation goes on. That same air sealing is what stops most ice dams.

Old houses also need to dry. Wall assemblies have to handle moisture without trapping it against old sheathing, and a tighter house needs planned ventilation, from bath and kitchen exhaust to a whole-house system where it makes sense. We work these details out by assembly, wall by wall, rather than applying one product everywhere.

Every house over fifty years old has a few surprises. The usual ones are knob-and-tube wiring still live behind plaster, rot at sills and around windows, joists notched by generations of plumbers, undersized framing, and old additions sitting on piers or no footing at all. Painted surfaces in houses built before 1978 may contain lead, and work that disturbs them has to follow federal and state lead-safe rules.

We can't see through plaster, so we price what we can see, open up early where the risk is highest, and recommend a realistic contingency. When we find something that changes the scope, we stop, photograph it, post it to your project portal, and write a change order with the price and the reason before the work proceeds. Nothing gets added to your bill by phone call or hallway conversation.