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Since 1979.

Chasco Inc. is a family owned and operated construction services company located in historic Portsmouth, New Hampshire.

We specialize in commercial and  residential construction projects. We are highly experienced at new building and home construction; renovation and restorations; and the installations of fences and gates, sound walls, sports netting and athletic field components, and miscellaneous metals. We can also fabricate and install a wide variety of other specialty products. Our seasoned team of craftsmen have the skills and vision to design, build, and manage any project. 


Years in Business


Projects Completed


Industries Served

Built to Last.

Chasco planted its roots in the construction services industry over 43 years ago.

We started as two men in a truck, constructing high-end cedar fences and decks for homeowners in the NH Seacoast area in 1979. In the years since, we’ve grown our skills and team to become one of New England’s most trusted builders, installers, and problem-solvers in the construction business – known for continually meeting complex construction needs and exceeding the expectations of our commercial and residential customers alike.

You Can Count on Chasco

Expertise in value

Timely and accurate

Superior products
and building


craftsmanship and

What Others Are Saying…

Commercial Construction

David S. 
Site Furnishings
Schools & Universities

“Dear Charlie, The seats are terrific. I am certain that the students in the years to come will enjoy them tremendously. On behalf of the Mitchell School community, we thank you for your time and efforts. Please extend our appreciation to Chris as well.”

Residential Construction

Al D.
Pool Enclosure

“Charlie, Thanks for an excellent job and premium quality products. Your workers were professional and courteous and made sure that the work was done correctly and to my satisfaction. Thanks again. ”

Read All Construction Testimonials

Because It Matters.

Chasco is committed to helping our community thrive on a local and global scale.

We believe in giving back to our neighbors and treating our planet with the most respect possible. We contribute to a number of amazing 501(c)(3) organizations in our area (as partners and sponsors); we source sustainable and American-made building materials whenever possible; and we prioritize bidding on eco-friendly projects at every opportunity. 

Wounded Warriors

Kittery Public Schools

Clipper Foundation

Friends of UNH Hockey

Bob Feller Act of Valor Foundation

Gundalow Company

Prescott Park Arts Festival

Warner House History Museum

Start Your Construction Project Today!
Call: 603.436.2141