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Verified record
Shawn M. Dahlen & Co. is a Duxbury builder and landscape company founded in 1970; Kevin Dahlen now owns and runs the second-generation business. It takes on new homes, remodels and additions, carpentry, waterfront improvements, landscape management, hardscaping, and pools. Recent Google reviews from 2023–2024 praise transparent communication, responsiveness, construction knowledge, and work on homes and landscapes. One 2023 reviewer reported a different experience: calls and emails went unanswered and a quote did not arrive promptly. The Massachusetts CSL record is marked “Null and Void,” so confirm the company’s current licensing before signing. The business is a fit for larger residential construction or landscape projects; request a current scope, schedule, and license documentation up front.
“Shawn Dahlen & Co. Inc. | (781) 934-2186 1500 Tremont St # 4, Duxbury, MA 02332”
“Project Type | New Construction Style | Greek Revival Year | 2018 Builder | Shawn Dahlen & Co. Inc.”
Top tier, when looking for the best, look no further.
Shawn Dahlen & Co is hands down the best GC I have ever worked with. Extraordinary knowledge of construction, local vendors, and a streamlined process. They are also kind, timely and build incredible homes!
I would recommend Shawn Dahlen & Co. to anyone and everyone who has new construction, home renovation/addition, or landscaping needs. I've known the family for 30 years and their work ethic, attention to detail, and expertise is second to none! They're also fantastic human beings, which is a huge plus!
Absolutely the best. Highest quality. Extraordinary service. Always. Every time.
Reliable, beautiful work
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1 change recorded — last scanned Sep 16, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Shawn Dahlen & Co. Inc.. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$23,000 – $35,000
Typical remodeling project around $29,000
Ownership
Certified attributes are verified against the public registry. Others are the business's own statement.
Ownership
Certified attributes are verified against the public registry. Others are the business's own statement.
Bathroom renovations4.9
Decks and basements4.1
Storm damage response3.4
Historic renovation experience3.3
Verified registrationNot yet rated
Building in Marshfield since the 1950s3.1
Custom cabinetry3.1
