Town report through 2026-10-15. Marlborough gives us its permits as a dated report, not a live feed: the figures here cover the town’s own report up to 2026-10-15 and change only when the next report is added.
What Marlborough owners actually declared on 29 recent insulation building permits in our dataset — public-record values, not quotes.
Owner-declared values from public building-permit records, residential-scale projects only (commercial and out-of-scale outliers excluded) — a benchmark, not a substitute for a contractor quote.
Exact addresses, the permit holder where the town lists one, and a sortable file — plus a free sample so you can see the quality first.
Weekly feed $99/mo, delivered every Monday
Insulation & Weatherization leads in Marlborough → · all Marlborough permits · insulation costs statewide
A Monday roundup of recent building-permit activity across Massachusetts — busiest towns, trades filing, biggest projects. Free, no card. Unsubscribe in one click.
Want exact addresses, plus the permit holder where the town lists one? See the full feed →
Across 29 recent Marlborough building permits that declared a value, the median insulation project value is $18,315, with a typical range of $5,571 to $32,998. These are owner-declared values from public permit records, not quotes.
Every figure is the declared project value on a real building permit filed with the Marlborough building department — public records MassPermits aggregates, not estimates.