Siding 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.
Siding replacement cost in Boston
Based on a 1,800 sq ft siding replacement 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 siding replacement | Low | Likely | High |
|---|---|---|---|
| Basic finishEntry-level materials, no layout change | $61k | $109k | $169k |
| Mid-range finishThe most common scope | $109k | $182k | $291k |
| High-end finishCustom materials and detail | $291k | $436k | $666k |
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 |
|---|---|---|---|
| Decking / paving materials | $32k | $53k | $85k |
| Structural framing | $18k | $30k | $48k |
| Railings & stairs | $9.9k | $17k | $26k |
| Footings | $9.9k | $17k | $26k |
| Labor | $26k | $43k | $69k |
| Permits | $4.0k | $6.6k | $11k |
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.
- What is underneath
- Strip-off jobs reveal sheathing condition. On pre-1960 homes, plan a repair allowance; a bid with no unit price for sheathing replacement is pricing luck.
- Product class
- Vinyl, fiber cement, engineered wood, and cedar each carry different installed costs and maintenance profiles. Fiber cement's installed price includes the cutting and handling labor that makes it slower to hang.
- Window and trim integration
- New siding against old windows is where leaks come from. Whether the bid includes new flashing tapes and integrated trim, or just butts siding to existing trim, is a major quality and price divider.
- Stories and access
- Three-story work needs staging or a lift, and tight lot lines slow everything. Access is a real cost line on dense New England lots.
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: 1–3 weeks on site for a typical single-family.
- 1Measurement and quote · 1 week
Wall area, openings, and a teardown assessment of the existing cladding layers.
- 2Material order · 1–6 weeks
Fiber cement and special-order colors carry lead times; confirm before teardown.
- 3Strip and repair · 2–5 days
Old siding off, sheathing inspected, repairs at the stated unit price.
- 4Weather barrier and flashing · 1–3 days
The phase that decides whether the job lasts. Housewrap, tapes, pan flashing at openings.
- 5Siding and trim · 1–3 weeks
Product installation with proper clearances at roofs, decks, and grade.
What's included — and what usually isn't
Siding is a weather-barrier job wearing a cosmetic costume. The product line on the bid matters less than the flashing, housewrap, and window-integration details underneath — and those are exactly the lines that disappear from the cheapest quote.
Typically included
- • Removal and disposal of existing siding where specified
- • Inspection of sheathing and repair at a stated unit price
- • Housewrap or integrated weather barrier, taped and detailed
- • Flashing at windows, doors, roofs, and penetrations
- • New siding in the specified product, with trim and corners
- • Site protection and daily cleanup
Usually excluded
- • Rotted sheathing or framing repair beyond a stated allowance
- • Window replacement, even where the work exposes window problems
- • Painting, when the product is unfinished
- • Gutter removal and reinstallation, unless listed
What a complete Boston estimate spells out
- • Whether existing siding is stripped or covered — and if covered, why that is acceptable
- • Weather-barrier product by name and how openings are flashed
- • A per-sheet or per-square-foot unit price for sheathing repair
- • Siding manufacturer, product line, and warranty type
- • How the work integrates with existing windows and trim
Full checklist: what should be in a contractor's estimate.
Looking for a siding replacement 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 quoteSiding replacement in Boston — common questions
Can new siding go over the old siding?
Sometimes — over one sound layer of flat siding, with the right preparation, it is legal and can be reasonable. Over multiple layers, over rot, or where window flanges need re-flashing, strip it. Any honest answer requires looking at what is on the house now.
How long does new siding last in this climate?
Quality vinyl and fiber cement are routinely rated for decades, and both handle freeze-thaw well when the weather barrier underneath is detailed correctly. Cedar performs beautifully but wants a maintenance cycle. The failure mode in New England is almost never the product — it is the flashing.