Carpenter in Cambridge, MA
CB Carpentry: Carpentry for Cambridge homes and condos
Finish trim, stairs, built-ins, cabinetry and framing for Cambridge triple-deckers, Victorians and condos.
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- Licensed in MA
- Bonded & Insured
- Local MA Carpenters
- Start in 1-2 Weeks
- 3 Years in Business
Cambridge, MA Carpentry Services
Cambridge packs a lot of housing into a small city: triple-deckers and two-families in North Cambridge and Cambridgeport, Victorians and older single-families in Mid-Cambridge and West Cambridge, and condos carved out of older buildings near Porter, Inman and Central Squares. Many of these homes are more than a century old. CB Carpentry provides rough carpentry, finish trim, cabinetry and built-ins, exterior carpentry, doors and windows and flooring for Cambridge homeowners and condo owners. We work carefully in older buildings and plan around parking and neighbors in dense neighborhoods.
What we build in Cambridge
Rough Carpentry
Renovations in older Cambridge homes often uncover joists cut for old plumbing, walls removed without proper beams and porch framing that has deteriorated. We sister joists, install beams, frame new layouts for condo renovations and repair rot. Cambridge requires permits for structural work, and some projects involving older buildings may need review by the Cambridge Historical Commission, which we help you check.
Where single-family homes in West Cambridge or Huron Village are being expanded, we frame additions and dormers built to fit the scale of the neighborhood. Work areas are sealed and cleaned daily, which matters when neighbors share the building.
Rough Carpentry detailsFinish Carpentry
Cambridge homes often have original trim, staircases and paneling worth preserving. We match profiles, repair stairs and railings and install new crown, wainscoting, shiplap and casing. In condo units where earlier renovations stripped out character, new finish carpentry can bring it back.
Many Cambridge homes have stairways shared between units, with railings and balusters that have loosened over a century of use. We tighten or rebuild railings, replace worn treads and add handrails where they are missing. Inside units, we install picture rails and wainscoting suited to older plaster rooms. New trim is primed and nailed off so your painter can finish quickly.
Finish Carpentry detailsCabinetry & Storage
Small Cambridge kitchens and condos need every inch to work. We install kitchen and bath cabinets set level on uneven floors, and build built-in bookshelves, window seats, closet systems and storage under stairs and eaves. Built-ins are a great way to add storage in rooms without closets, which are common in older homes.
Many Cambridge households include academics and readers with large book collections, and floor-to-ceiling bookshelves are one of the most requested built-ins we see. We build them with short spans and solid shelves so they will not sag, and trim them to match the room. Every shelf is fastened into the framing.
Cabinetry & Storage detailsExterior Carpentry
We rebuild porches, decks and stairs on triple-deckers and two-families, replace rotted trim, soffits and fascia, and build fences and small backyard structures sized for city lots. Porches on multi-family homes need to meet building code for structure and railings.
Many Cambridge two-families and triple-deckers have stacked back porches that serve as a second exit. When porch framing fails, we rebuild it with new posts, beams, joists, decking, stairs and railings, built to carry the loads the code requires. We also replace rotted clapboard trim, corner boards and window casing. Rot-resistant materials and proper flashing help the new work last through New England winters.
Exterior Carpentry detailsDoors & Windows
We hang and adjust interior doors in older homes, install new entry and back doors with proper flashing and secure hardware, and repair rotted window sills and jambs. Doors in older Cambridge buildings often need to be scribed to fit openings that are no longer square.
In multi-family buildings, we also install sturdy unit entry doors and back doors with good locks. When new windows go into older Cambridge homes, we add extension jambs and new interior trim so they look finished, and repair rotted sills and framing found when the old windows come out. Every door is adjusted before we leave.
Doors & Windows detailsFlooring
Many Cambridge homes have original hardwood floors. We install new solid and engineered hardwood, weave new boards into old floors where walls moved, level old subfloors and match stair parts. Engineered hardwood is a good fit for condo units.
Older Cambridge floors often slope where the building has settled, so we flatten the subfloor where practical before new flooring goes down. We also follow condo association rules for underlayment and sound control in multi-unit buildings, and finish thresholds and stair nosing so each unit looks complete. Engineered hardwood is often the best fit over concrete or radiant heat in lower-level units.
Flooring detailsResidential Carpentry Contractor in Cambridge, MA
Much of Cambridge's housing dates to the late 1800s and early 1900s: triple-deckers and two-families built for working families, workers' cottages and larger Victorians. Many have been converted into condominiums. These older wood-frame buildings have settled and been renovated many times, so carpentry in Cambridge means working with what is there, correcting past shortcuts and matching original details. We bring that patience to every job.
In Cambridge, small improvements often make the biggest difference: a built-in wardrobe in a closetless bedroom, bookshelves around a window, a rebuilt back porch or new trim that restores a room's original character. We are happy to take on these focused projects as well as larger renovations and condo conversions.

Cambridge's Local Carpenter
We serve Cambridge neighborhoods including North Cambridge, Porter Square, Inman Square, Cambridgeport, Mid-Cambridge and West Cambridge, along with neighboring Somerville and Boston. Most projects can start within a week or two, or once permits are in place. Call or text Monday through Friday 8am to 6pm or Saturday 10am to 4pm to set up a visit and get a quote.
Working in a dense city takes planning. We arrange parking and deliveries in advance, keep noise and dust under control, and respect neighbors in shared buildings, so your project moves forward without unnecessary friction.

Cambridge Carpentry Questions
Do you work in Cambridge condos?
Yes. We work in condo units and follow building rules for hours, access and common areas.
Do carpentry projects in Cambridge need approval?
Structural work needs a building permit. Some projects on older buildings or in historic districts may also involve the Cambridge Historical Commission. We help you check.
Can you add built-in storage to a room without closets?
Yes. Built-in wardrobes, bookshelves and window seats are great ways to add storage in older rooms.
Serving Cambridge, MA and Nearby Towns
Here is the Cambridge area on the map. We also work in these other Massachusetts communities:
Ready to Book a Carpenter in Cambridge?
Call CB Carpentry during business hours or send your project details and we will get back to you with next steps.
