Architectural Design
9 Years
Serving Southern New Hampshire with design-build expertise
150+
Beautifully crafted remodels and new construction projects
90%
Clients who return or refer after their first project
1 Year
Warranty backed by our commitment to quality and care
5 Star Reviews
We specialize in residential architectural design that bridges imagination and reality.
Our team creates detailed, build-ready plans for new homes, additions, and remodels - balancing function, aesthetics, and budget from the start. By integrating design with construction expertise, we streamline the process, minimize costly changes, and deliver homes that are beautiful, practical, and tailored to your lifestyle.
Future spaces, fully visualized
See your remodel come to life before construction begins. Through detailed 3D design, we transform ideas into plans you can explore, refine, and move forward with confidence.
Design, Fully Realized
Step inside your future home before construction even begins.
Step inside your future home before construction even begins.
Informed Decisions
Explore finish, layout, and material options with complete clarity.
Explore finish, layout, and material options with complete clarity.
Seamless Collaboration
Design and construction work in close alignment, refining ideas in real time.
Design and construction work in close alignment, refining ideas in real time.
Peace of Mind
Approve your design confidently, knowing exactly what to expect.
Approve your design confidently, knowing exactly what to expect.
What Our Clients Are Saying
Homeowners trust us to make complex renovations
feel simple and stress-free.
feel simple and stress-free.
Oak Hill’s craftsmanship truly impressed us. They went above and beyond to ensure every detail was perfect, often coming back to touch up areas that needed extra care. Their dedication to quality and use of high-end materials made all the difference in our remodel.
Lisa M.
Chris and his team did outstanding work remodeling our basement, completing the project in under two months while maintaining daily communication and consistently going the extra mile, and we will definitely be working with him again.
Adam S.
We just had a bathroom renovation with Oak Hill, and Chris Guay is an amazing designer and builder. His vision, passion, and work ethic kept my wife and me fully involved, and the use of his client portal to track every step made the process clear and organized. With Chris at the wheel, we felt confident we would reach the finish line completely happy.
Frank K.
Chris completely transformed our awkward, inefficient home into a modern, beautifully functional space, and his 3D renderings and walkthroughs captured our style so perfectly that we never needed an interior decorator. Working with Chris was a pleasure from start to finish, and we would recommend him without hesitation.
Stephanie M.
We worked with Chris on three phases of a challenging, multi-part renovation, and he transformed a disjointed, irregular home into a contemporary, functional space while being a pleasure to work with throughout, which is why we recommend him without hesitation and look forward to working with him again.
Rob M.
Built on clarity,
delivered with care
Featured Work
We’re not just designers or builders—we’re both
Design & Project Planning
Every successful project starts with clear direction. We define your goals, explore feasibility, and shape a roadmap for renovations, additions, or new builds with practical insights and guided expertise.
Preconstruction & Construction
With full-service project management and trusted craftsmanship, we bring designs to life with precision. Seamless coordination ensures every remodel or new build is delivered with lasting quality and care.
