Idea

Since our establishment, 13 Renovation Co., Ltd. has been dedicated to enhancing the lifestyles of residents in this Shinshu region.

Having grown up surrounded by the rich nature here and honing my skills as a carpenter, I’m confident in my deep understanding of the local climate, culture, and, most importantly, the desires of the people who live here.

We believe that a house is more than just a structure—it’s a place that nurtures your life and creates cherished memories. That’s why we take the time to listen carefully to each of our clients’ dreams, aspirations, and even their small anxieties. From restoring traditional homes and renovating to preserve memories to creating a new life in a vacation home, our skilled craftsmen will respond to any request with their accumulated expertise, knowledge, and, above all, their wholehearted dedication.

Unlike larger companies, we pride ourselves on our ability to respond to our clients’ precise and detailed needs. We want to be your trusted partner in creating your future by offering flexible proposals that adapt to your family’s growth and changing lifestyle.

Please, share your dreams for your home with us. We are sincerely looking forward to hearing from you.

Junya Kanai, President

13 Renovation WB Showroom
320-78 Komiyama, Saku-shi, Nagano, 385-0047, Japan

13 Renovation Single-Story Renovation Showroom
1673-1 Seto, Saku-shi, Nagano, 385-0035, Japan

13 Renovation Karuizawa Branch
23-2 Karuizawa Higashi, Karuizawa-machi, Nagano, 389-0104, Japan


Please let the majestic nature of Shinshu heal your heart.

The breathtaking mountains, the abundant scenery that changes with each season, and the fresh, delicious food nurtured here. More than anything, the clear water and transparent air will gently embrace your heart, tired from the city’s hustle. Shinshu is like a second home that warmly welcomes everyone who visits.