Whole-home renovation contractors in Boston, MA
Boston is one of the most expensive renovation markets in the country. Dense parcels, narrow streets, permit parking for dumpsters and deliveries, and a deep bench of union-scale trades all push labor above the Massachusetts average — often before a single material decision is made.
Our Haus isn't a contractor directory. We give you the local cost math, the permit reality, and the paperwork tools — the scope, the proposal comparison, and the vault your records live in.
Whole-home renovation cost in Boston
Based on a 1,600 sq ft whole-home renovation scope, adjusted by the Massachusetts regional cost index and a Boston metro multiplier of 1.12×. A 10% contingency reserve is included. These are budgeting estimates, not quotes.
| Boston whole-home renovation | Low | Likely | High |
|---|---|---|---|
| Basic finishEntry-level materials, no layout change | $155k | $232k | $336k |
| Mid-range finishThe most common scope | $336k | $465k | $646k |
| High-end finishCustom materials and detail | $646k | $904k | $1.29M |
Source: Our Haus cost engine — per-square-foot bands from public industry data (Cost vs. Value, NAHB, RSMeans-derived regional indices), adjusted for Massachusetts and the Boston metro.
Estimated range — based on BLS OEWS national average wages and BLS PPI material indexes applied to Our Haus baseline unit costs, as of June 2026. Estimates are shown as a range and help set expectations. They are not a quote, a verified price, or an appraisal of what a contractor will charge.
Where the money goes (mid-range finish)
| Line item | Low | Likely | High |
|---|---|---|---|
| Kitchens & baths | $92k | $127k | $176k |
| Flooring & paint | $43k | $59k | $82k |
| HVAC / plumbing / electrical | $61k | $85k | $117k |
| Doors, windows, trim | $31k | $42k | $59k |
| Labor (general) | $67k | $93k | $129k |
| Permits & design | $12k | $17k | $23k |
Estimated range — based on BLS OEWS national average wages and BLS PPI material indexes applied to Our Haus baseline unit costs, as of June 2026. Estimates are shown as a range and help set expectations. They are not a quote, a verified price, or an appraisal of what a contractor will charge.
What drives the price in Boston
Much of the city's housing predates 1940: South End and Back Bay brownstones, Dorchester and Jamaica Plain triple-deckers, and Victorians in Roslindale and West Roxbury. Expect knob-and-tube remnants, balloon framing, plaster-and-lath walls, cast-iron waste stacks, and lead paint in anything built before 1978 — all of which add scope that a per-square-foot average never captures.
- Systems replacement
- Whether the project includes a new panel, new heating plant, and re-piping is the single biggest spread between whole-home bids. Two quotes can differ by six figures on systems scope alone.
- Occupancy
- Working around an occupied house adds protection, phasing, and daily cleanup. Vacant houses run faster and cheaper — factor temporary housing into the real comparison.
- Structure discovered at demo
- In pre-1940 housing, a whole-home scope almost always finds framing, sill, or masonry repairs. Good bids carry an explicit allowance; thin bids carry a change-order machine.
- Sequencing discipline
- The schedule is the product on a whole-home job. A bid without a real phase plan and named supervision is not comparable to one that has both.
Common Boston neighborhoods where this work comes up: Back Bay, South End, Jamaica Plain, Dorchester, Charlestown, South Boston.
Permits and rules in Boston
Authority: City of Boston Inspectional Services Department (ISD)
Long-form building permits are required for structural work, additions, and most layout changes; short-form permits cover like-for-like interior work. Electrical and plumbing permits are pulled separately by the licensed trade. Landmark districts (Back Bay, Beacon Hill, South End, Bay Village, Mission Hill Triangle) add a Boston Landmarks Commission or district-commission review before exterior work, which routinely adds weeks to the front of a schedule.
Massachusetts contract and licensing rules
Massachusetts requires a written contract for residential work over $1,000, and the contractor must be registered under the Home Improvement Contractor (HIC) program. The contract must state the total price, a payment schedule, start and completion dates, and the contractor's HIC registration number. Deposits are capped at one third of the total price (or the cost of special-order materials, whichever is greater).
Timeline and season in Boston
Exterior work concentrates between April and November. Roofing shingles need surface temperatures above roughly 40°F to seal properly, so late-fall installs often run a hand-sealing step. Foundation and excavation work slows once the ground freezes, and spring is the busiest booking window — quotes issued in January are usually cheaper than the same scope quoted in May.
Typical duration: 4–9 months on site for a typical single-family.
- 1Design and scope · 6–16 weeks
Room-by-room scope, systems assessment, and a real budget. Skimping here is the most expensive mistake on this project type.
- 2Permitting · 3–8 weeks
Building, electrical, plumbing, and mechanical permits; longer with structural changes or historic review.
- 3Demolition · 1–3 weeks
Phased teardown; hazardous-material surveys clear first.
- 4Structural and rough systems · 4–10 weeks
Framing repairs, then plumbing, electrical, and HVAC rough with inspections before close-up.
- 5Insulation and drywall · 2–4 weeks
Whole-house board, tape, and prime.
- 6Kitchens, baths, and finishes · 6–12 weeks
Cabinet and tile lead times drive this phase; finishes follow room by room.
What's included — and what usually isn't
A whole-home renovation is several projects run as one: kitchen, baths, systems, and finishes under a single schedule and a single contract. The savings versus doing rooms one at a time are real — but so is the planning burden, and the bid comparison problem is harder than for any single-room job.
Typically included
- • Design and scope development across all rooms and systems
- • Demolition in phases, with the house often unoccupied
- • Structural repairs and layout changes
- • Full or partial replacement of electrical, plumbing, and HVAC
- • Kitchen and bathroom remodels within the larger scope
- • Insulation, windows, and air sealing where walls are open
- • Flooring, trim, paint, and fixtures throughout
- • Permits, inspections, and a sequenced trade schedule
Usually excluded
- • Temporary housing during the work, which most whole-home projects require
- • Furniture storage and moving
- • Landscape and exterior hardscape unless listed
- • Asbestos or lead abatement discovered at demolition — usually an allowance or unit-price line
What a complete Boston estimate spells out
- • A room-by-room scope document, not a lump sum with a paragraph
- • Systems scope stated explicitly: panel size, heating plant, re-pipe or not
- • Allowances listed by line with dollar figures
- • A phase schedule and a named site supervisor
- • The change-order process and markup, in writing
- • A payment schedule tied to inspected milestones
Full checklist: what should be in a contractor's estimate.
Looking for a whole-home renovation contractor in Boston?
We don't keep a contractor directory, and we won't pretend to. The dependable process is to gather two or three referrals locally, check the Massachusetts registration or license rules above, confirm general liability and workers' compensation directly with each carrier, then compare the written proposals side by side against the ranges on this page.
Run a Boston contractor's business? You can publish a free Our Haus profile with your license, insurance dates, service area, and work photos, and share it by link or QR code.
Have a Boston quote in hand?
Run it through the quote range checker. We compare it against the Massachusetts cost index, flag line items that look high, and review the contract against Massachusetts home-improvement rules.
Check my quoteWhole-home renovation in Boston — common questions
Is it cheaper to renovate the whole house at once?
Usually yes per room — mobilization, permits, and trade setup are shared, and systems work done with walls open is far cheaper than opening finished walls later. The tradeoff is that you need the full budget and temporary housing at once.
How do I compare whole-home bids?
Line by line, on scope — never on the total. Align the systems scope, allowances, and what's excluded first. A bid that is twenty percent lower almost always has twenty percent less in it, and the missing scope returns as change orders.