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Insulation & Weatherization Project Costs in Cambridge, MA

What Cambridge owners actually declared on 88 recent insulation building permits in our dataset — public-record values, not quotes.

$15,422
Median project value
$5,800–$40,000
Typical range
88
Permits analyzed

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.

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FAQ

How much does a insulation project cost in Cambridge, MA?

Across 88 recent Cambridge building permits that declared a value, the median insulation project value is $15,422, with a typical range of $5,800 to $40,000. These are owner-declared values from public permit records, not quotes.

Where does this cost data come from?

Every figure is the declared project value on a real building permit filed with the Cambridge building department — public records MassPermits aggregates, not estimates.