Your Trusted Garage Contractor in the Nashua, Milford and Lyndeborough, NH Areas

Rely on the experts at R. LaBonte Construction & Development

Expand Your Living Space

Offering Attached/Detached Garages and Accessory Dwelling Unit (ADU) addition services in Nashua, Milford, Lyndeborough, NH and surrounding areas

Your home may have been the perfect size when you first moved in, but life has a way of changing your needs in a hurry. If you’re outgrowing your home and need some extra space, turn to the pros at R. LaBonte Construction & Development. Our ADU contractors have over 42 years of experience building both attached and detached additions in the Nashua, Milford and Lyndeborough, NH areas.

Call 603-316-4146 today to learn more about our ADU addition services.

Think of us first for custom additions, attached and detached garages

With over four decades of experience in the industry, we can complete virtually any type of custom ADU or addition project for your home. Our services include: 



• Detached garage additions

• Attached garage remodeling 

• ADU construction 

• Barn and workshop construction

Whether you want a spacious garage with car lifts installed or a brand-new ADU for rental income, our skilled contractors can design and build your entire addition from scratch. 


Custom Additions Built to Fit Your Needs

 Receive a free estimate on your project today

Enjoy complete control over every detail

At R. LaBonte Construction & Development, we take on each and every project with an open mind and a fresh perspective. We don’t believe in cookie-cutter designs for any of our Accessory Dwelling Unit addition services. Our team will handle every step of the process, including the foundation and framing, as well as plumbing, electrical and HVAC work. 



If you can dream it, we can build it. Contact us today to receive a free estimate.