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New England Gypsum & Robert N. Karpp Company

Quality Construction Supplies in CT, MA, ME, and NH

As of 2020, two of New England’s top construction materials suppliers have joined forces to serve the full needs of commercial and residential builders, contractors, and construction professionals across Connecticut, Massachusetts, Maine, and New Hampshire.

New England Gypsum (NEG) and Robert N. Karpp Company (Karpp) are experts, with decades of experience in their respective local markets. As fellow GMS companies, they share a common passion for "safety-first" customer service.

Together, the considerable resources and reach of New England Gypsum and Robert Karpp create a single, reliable, go-to source you can trust for the best construction products in New England.

Top Building Products in NE

Contractors and builders know where to find the best construction supplies in the NE. Together, New England Gypsum and Robert N. Karpp offer complete lines of top-brand offerings in:

Your New England Construction Supply Experts

Karpp and NEG are here, ready to help with your commercial or residential construction projects in CT, MA, ME, and NH. Stop by any of our yard locations and let us help you with specialty product orders and free expert advice.

Customer service is our number one priority. That’s why we proudly provide:

About NEG

Opened only in 2018, New England Gypsum has grown quickly and steadily, on the strength of exceptional customer service and unmatched construction supply product expertise.

Today, a lean and committed team of employees work hard to maintain and improve the reputation NEG had developed as a premier supplier of building products and accessories across New England.

NEG serves residential and commercial construction customers from three building supply yards in:

Connecticut: Hartford

Maine: South Portland

New Hampshire: Manchester

About Robert N. Karpp Company

In 1979, Bob Karpp would open a small warehouse devoted to providing superior customer service to drywall contractors around South Boston. Today, the company which bears his name – the Robert N. Karpp Company – is the largest independent drywall supply yard in the Boston area.

Now, with three generations of Karpps working together in the business, and as part of the GMS family of companies, the Robert N. Karpp Company provides a range of quality building products and supplies to construction professionals throughout MA, RI, and NH.

Robert Karpp serves residential and commercial building customers from three strategically located building supply yards in:

Massachusetts: Abington | Attleboro | South Boston

From Our Yard to Your Job

We offer on-time delivery service (after-hours and weekends, too), generally within a 100-mile radius of our construction supply yards across New England. Call or visit us today for all your building supply needs.

Need to talk to an expert to help with your next project?

Experienced and helpful customer service representatives are standing by ready to help.
About Us

We have one simple pledge: to get the right products into customers' hands all across New England, as quickly and safely as possible.

Our Services

NEG and Karpp carry and deliver a full range of commercial and residential construction supplies from the best brands in the business.

Our Locations

Our delivery fleet is dispatched several New England construction yard locations including Hartford, CT; South Portland, ME; Manchester, NH; and Abington, Attleboro, and South Boston, MA.

Contact Us

For more information about how to contact us, visit our Find a Yard page. Or click the Contact Us tab to send us an email.