
Transform your home with a custom room addition in as little as 4 months with Roomsmith—the Twin Cities’ one-stop-shop design and build contractor.
Roomsmith helps you create the exact space you need quickly, simply, and affordably with full-service design and build contracting services.
Get a quoteTake the guesswork out of building a room addition—consult with a Roomsmith design expert and get a 3D rendering of your new room addition.
Add-ons with Roomsmith are completely hassle free. We handle everything from permitting and prep work to building and clean up.
Since we have teams on staff for every single step of the process, we’re able to execute your dream space in as little as 4 months from initial consultation to ready-to-use.

These guys are outstanding and friendly people. The results are great and they are creative in their own ways planning out creative solutions to fix problems. My rental property was in good hands from the beginning and I have no regrets choosing these guys to take care of the place.
Entire basement remodel including bathroom. Also added a front porch and stairs to my home. Great quality and workmanship. The transformation in the basement is amazing. It took a lot of creative workmanship to get every inch out of the space in the basement. Especially with the challenge of getting every inch out of the ceiling height. The porch and stairs they put in transformed the use of that space and curb appeal. Exceeded my expectations and I highly recommend Room Smith.
RoomSmith came in, and demolished a deck and built a patio in a rapid pace. A very professional experience.They were very responsive to any questions we had via both phone or text.Overall, this was a wonderful experience and I will be recommending it to anybody I know who needs something done.
Excellent service and well done. I had a room added in the basement and completely remodeled. They did a great job at a reasonable price. Highly recommend.


With Roomsmith, creepy basements become in-law apartments, crawl-space attics become art studios, and cramped homes get spacious new rooms.
Get a quoteLet Roomsmith plan, design, and build a new room to your exact specifications and install it on your home, matching your existing siding, shingles, and exterior.
Roomsmith transforms dark basements with drippy sinks into fully-functional family rooms, movie theaters, and game rooms—allowing you to maximize your space.
Whether you need to add height to your attic or just make it a comfortable, inviting room, Roomsmith can help turn it into whatever kind of space you need.
No matter the type of room addition you need, with Roomsmith’s hassle-free design and build service you can completely transform your space in as little as 4 months.
Get a quote
Consult with a Roomsmith architect and get a detailed rendering of your room addition.
While we secure the necessary building permits, you secure project financing.
We handle every step of the build process from start to finish.

