Local business · Eastham, MALocal business · 35 Salt Pond Rd, Eastham, MA 02642
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Cornerstone Dynamics pulled eight building permits on residential streets in Orleans between 2009 and 2016 — windows, doors and siding, plus alteration and repair jobs — with the listed valuations around $9,000 to $10,000 apiece. The Eastham company is owned by Luke Nowack, per its BuildZoom profile, and the licensing lines up behind him: his Massachusetts construction supervisor licence, CS-096535, is active, and the company's own home improvement contractor registration, #154519, is active as well. Boston Magazine has mentioned Nowack in a piece about new construction on the Cape. For a window-and-door package, siding, or a remodel inside an existing Outer Cape house, this is the trade. Ask which of their recent jobs come closest to yours and for references from them, and get the scope, the schedule and proof of insurance in writing before work starts.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Cornerstone Dynamics LLC. Use it to sanity-check bids, then get the real number in writing.
A typical single-level deck is 12×16 — about 200 sq ft.
Estimated range
$7,750 – $14,500
Typical carpentry project around $11,100
“incetown Can Exhale See all » The Cape is known for its beaches, occasional sharp-toothed visitors, and general summertime appeal—plus a shortage of housing. So when there’s new construction like this, it’s worth celebrating, especially when you consider that Luke Nowack, the master carpenter and builder behind it, used mostly Cape Cod-based artisans when pulling together this home. Nowack himself has always been a fan of the Cape: He grew up vacationing in the area and worked as a lifeguard on the beaches before deciding to move here permanently in 2001. Now settled in Eastham, Nowack previou”
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2 changes recorded — last scanned Aug 20, 2026.
LEED Gold builder3.8
Window replacement3.6
A repeat client left them a house key3.4
Precise, respectful antique-home window work2.7
Decks and beach stairsNot yet rated
Regular text and video progress updates5.0
Restored Frank Lloyd Wright's Buehler House3.5
