Remodeling in Lexington, MA: A Planning Guide for Homeowners

The single best predictor of how a Lexington remodel will go is when the house was built. A kitchen remodel in a 1995 Colonial and one in an 1890s house on Meriam Hill can look identical on paper and play out very differently once demolition starts.

Meriam Hill, close to Lexington Center and the old depot, was divided into house lots in the 1870s and built up mostly in the late 1800s and early 1900s, with more houses added through the 20th century. The houses around the Battle Green and in East Lexington include some of the oldest in town. After World War II, Lexington filled in with capes, ranches, split-levels and Colonials, plus the planned mid-century modern neighborhoods the town is known for. Neighborhoods like Countryside, near the Winchester and Woburn lines, have many larger Colonials and contemporaries from later decades.

Before you call anyone, look up your year built on the town assessor records and note any past renovations you know about. That one fact changes the scope, the schedule and the contingency you should hold back.

Every era hides something. Knowing the common ones ahead of time keeps an unexpected discovery from turning into a budget crisis.

In houses from the late 1800s and early 1900s, expect plaster and lath walls, balloon framing with open cavities that run from the basement to the attic, and sometimes old knob-and-tube wiring still live in a wall or ceiling. Floors may be out of level, and past owners may have notched joists for plumbing. Lead paint is likely on trim, windows and doors in any home built before 1978, and work that disturbs it has to follow lead-safe practices.

Postwar capes and ranches from the 1950s and 1960s tend to have simpler framing but their own list: galvanized supply pipes nearing the end of their life, undersized electrical service for a modern kitchen, and older materials such as 9 by 9 inch floor tiles or pipe insulation that may contain asbestos and should be tested before anyone disturbs them. Bathrooms from that era often have tile set in a thick mortar bed, which is solid but heavy to remove.

Mid-century modern houses bring different questions: low-slope roofs, large glass, exposed post-and-beam framing and, in some homes, heating built into the floor slab. Cutting into a slab or a beam in those houses takes planning, not guesswork.

Newer Colonials usually open up clean, but check for builder-grade shortcuts: missing flashing at windows, thin subfloors under tile and bathroom fans that vent into the attic instead of outside.

In Massachusetts, structural changes, additions, roofing and most decks normally need a building permit, and plumbing and electrical work carry their own permits. Lexington also has local historic districts, and exterior changes that are visible from a public way inside those districts generally need review before a building permit moves forward. If you are not sure whether your address is in a district, the town can tell you, and it is worth asking before you finalize a design.

One thing that surprises many owners: Lexington has opted into the Massachusetts Specialized Opt-in Energy Code. It mainly affects new homes and major projects, so a large addition or a gut renovation may carry stricter energy requirements than the same job in a neighboring town. Ask your designer or contractor how it applies to your scope early, because it can affect insulation, mechanical systems and cost.

Permit review times depend on the town's workload and the complexity of the project, so build some slack into your schedule rather than planning demolition for the day after you apply.

Exterior work is weather driven. Roofing, siding, decks and porch rebuilds go best from late spring through fall, when materials seal properly and crews are not fighting snow and ice. Masonry and stone walls also prefer mild weather, since mortar needs to cure above freezing.

Kitchens, bathrooms, basements, flooring and finish carpentry run year round, which makes winter a smart time for interior projects. Many Lexington owners design in the fall, handle permits over the winter and start exterior work when the season opens.

If your project needs historic district review or involves an addition, start the design earlier than you think. Waiting until spring to begin drawings often pushes exterior work into late summer or the following year.

Remodeling costs in the Lexington area sit at the higher end for Massachusetts, driven by labor rates, older housing stock and the level of finish many owners choose. Ranges vary widely by source and scope, but for rough planning, many midrange kitchen remodels in Greater Boston typically land well into five figures and often past $50,000, while full bathroom remodels commonly run in the tens of thousands. Additions are usually priced per square foot and tend to be the biggest line item of all. Treat any published number as a starting point, not a quote.

What moves the price most: structural changes such as removing a bearing wall, relocating plumbing, electrical upgrades, the age of the house, cabinet and countertop choices, and whether the project triggers stricter code requirements.

Hold back a contingency. For newer homes, 10 percent is often enough. For houses from before World War II, many homeowners plan closer to 15 to 20 percent, because rot, old wiring and altered framing are common once walls are open. A clear written estimate that lists scope and materials line by line makes it easier to see where your money goes.

Get at least two or three written estimates for the same scope, so you are comparing like with like. Ask each contractor who will be on site day to day, who you call with questions and how changes are handled and documented.

In Massachusetts, you can look up a contractor on mass.gov: the Home Improvement Contractor (HIC) registration and, for structural work, the Construction Supervisor License (CSL). State law also requires a written contract for most residential home improvement work on owner-occupied homes of one to four units above a small dollar threshold, and it limits how much deposit a contractor can ask for up front, apart from special-order materials. Reading the contract carefully is part of protecting yourself.

Most Lexington homeowners stay in the house while work goes on. Plan a temporary kitchen with a microwave, a hot plate and a utility sink, or set up a small counter in the dining room. If you only have one full bath and it is being redone, ask about keeping a toilet working or sequencing the job so the gap is as short as possible.

Talk through dust protection, where the dumpster goes, parking for trucks and how the site is cleaned up at the end of each day. Clear expectations up front prevent most of the friction that makes remodeling stressful.

NC Construction is a general contractor based in Woburn, a short drive from Lexington on Route 128. Nathan, the owner, does the walkthrough, writes the estimate and is on the job while work is underway, so you have one point of contact from start to finish. We explain the permit process and help handle it, and if something unexpected turns up once a wall is open, we show you before going further.

If you are planning a kitchen, bath, addition, deck or exterior project in Lexington, request a free written estimate and we will walk the house with you.