Make Your Dream
Home Reality
Serving residential and commercial
properties in the Hudson Valley, New York
Make Your Dream Home Reality
Serving residential and commercial
properties in the Hudson Valley, New York
Add Cornerstone Carpentry to your
Approved Contractor List
In business for over 20 years, building lasting relationships and turning houses into homes.
Add Cornerstone Carpentry to your
Approved Contractor List
In business for over 20 years, building relationships and turning houses into homes.
Considering a closet makeover? How about a new window seat? We can help with any type of custom cabinet project you can imagine.
From crown molding and historical millwork to furniture building and restoration, if it involves wood and a vision we can help.
Combining your ideas with our experience and craftsmanship to produce beautiful and timeless results.
If you're looking for a new toilet, sink, or a complete renovation, we can help transform your old bathroom into a dream-come-true.
A new or revived deck can magically extend the living space of your home. An upgrade to your porch can make your home the jewel of the neighborhood.

Truly Impressed

"We were truly impressed with Tim from the first moment we met him. He is EXTREMELY knowledgeable, professional, and his work is meticulous! We never thought we would find a “perfect” contractor, but we certainly did. Tim made our new kitchen even more beautiful than we could ever imagine. We were thrilled with Tim’s work throughout every part of the process, from start to finish. 
We could never give him enough praise.
There is no doubt that we would hire Tim again for other projects that we have in mind!!"

Carol H. | Poughkeepsie, NY

Very Pleased

"Having been very pleased with a bathroom re do, we recently again hired Cornerstone Carpentry for a kitchen renovation project. 
Tim Mummert, the owner, is very easy to work with, patient, helpful and neat. He is a skilled and knowledgeable craftsman."

Rita & Bob Lewis | Poughkeepsie, NY

Unparalleled

"Tim Mummert, of Cornerstone Carpentry, has been my contractor for ten years. Tim's experience, reliability, honesty, and talent is unparalleled. He has tackled large complicated projects and smaller ones that most contractors wouldn't bother entertaining. As a single mom, I can not begin to describe the peace I have knowing Tim is available. He always goes out of his way to make sure I am getting the best price without sacrificing quality. He is also meticulous, with his dropcloths always smelling fresh and laundered. I mean, what contractor does that? Tim Mummert does, that's who."

M.H. | Poughkeepsie, NY

Truly Impressed

"We were truly impressed with Tim from the first moment we met him. He is EXTREMELY knowledgeable, professional, and his work is meticulous! We never thought we would find a “perfect” contractor, but we certainly did. Tim made our new kitchen even more beautiful than we could ever imagine. We were thrilled with Tim’s work throughout every part of the process, from start to finish. 
We could never give him enough praise.
There is no doubt that we would hire Tim again for other projects that we have in mind!!"

Carol H. | Poughkeepsie, NY

Unparalleled

"Tim Mummert, of Cornerstone Carpentry, has been my contractor for ten years. Tim's experience, reliability, honesty, and talent is unparalleled. He has tackled large complicated projects and smaller ones that most contractors wouldn't bother entertaining. As a single mom, I can not begin to describe the peace I have knowing Tim is available. He always goes out of his way to make sure I am getting the best price without sacrificing quality. He is also meticulous, with his dropcloths always smelling fresh and laundered. I mean, what contractor does that? Tim Mummert does, that's who."

M.H. | Poughkeepsie, NY

Very Pleased

"Having been very pleased with a bathroom re do, we recently again hired Cornerstone Carpentry for a kitchen renovation project. 
Tim Mummert, the owner, is very easy to work with, patient, helpful and neat. He is a skilled and knowledgeable craftsman."

Rita & Bob Lewis | Poughkeepsie, NY