Free ADU Consultation & Quote
We design and build accessory dwelling units (ADUs) that are functional, durable, and tailored to your property and goals.
We are not the cheapest option and not the fastest and that’s intentional.
ADUs require proper planning, permits, and construction to ensure safety, durability, and long-term value.
We focus on building high-quality units that are done right the first time.
Building an ADU is a major investment. We focus on doing it right the first time.
We discuss your goals, property, and ADU options.
We guide you through design considerations and approvals.
Our in-house team builds your ADU with precision and care.
We ensure everything meets our standards and your expectations.
Homeowners choose us because we deliver high-quality work and stand behind every project.
"Definitely recommend Tyler and his guys! Did really good work, showed up and even cleaned up really well daily! But what really stood out to me was the way him and his guys were great about explaining everything they were doing in a way I could understand it, which made me feel so much better about the whole project from start to finish. Can't say enough about these guys! Wish I found them sooner!"
"Tyler and his crew were awesome to work with. They were efficient with all their work and materials and left a fantastic finished product. I would highly recommend them to any family or friends for any of their projects."
"I had a fantastic experience working with Tyler McCarthy from McCarthy Exteriors. Tyler maintained excellent communication throughout the entire project, always keeping me informed and promptly addressing any changes that arose. His attention to pricing was impressive, and he consistently provided me with options to manage costs effectively."
Whether you’re building for rental income, family, or extra space, we’re here to help.
Schedule Your Free ADU Consultation!
Proudly Serving Southern New Hampshire
©2026 McCarthy Exteriors, LLC
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