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Tri-State Window & Siding Co. Inc. is proud to serve the New Hampshire community as a high-quality home improvement contractor. Tri-State has been in the home improvement business for over 30 years. We strive to ensure 100% satisfaction by providing our New Hampshire customers professional, affordable high quality service. Learn more about what we can do for all of your home remodeling & construction needs. Home remodeling can be the second largest investment you will make besides your original purchase.
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Tri-State Window & Siding Co. Inc. is proud to serve the New Hampshire community as a high-quality home improvement contractor. We believe in providing quality products and services to our customers, many of whom have returned for project after project over the years. We do not offer Cash Back, we have no Special Coupons for $$$ off your project.
Additions - An addition of any size and shape is an exciting way to breathe new life into your home. Whether it's a 3 car garage to keep big boy's toys out of the elements, A family room with cathedral ceilings and warming fireplace for those cold winter nights, An In-Law apartment for aging parents or a new in home office for the work at home professional we can design and build it for you.
Finding a qualified, professional remodeling contractor need not be a difficult or unpleasant task. By following these basic guidelines, you will not only make the selection process easier, but also you will be more prepared to make an informed decision that best suits your needs. Selecting a Qualified Remodeler - Employ a contractor with an established business in your local area.
There is a lifetime warranty against any manufacturer's defects for the original homeowner. Upon transfer of the property, the siding is warranteed from the date of installation for a period of 50 years. Yes, Soft Coat Low-E Glass with Argon blocks 64% of harmful ultraviolet rays that can cause furniture and carpet fading.
Reviews (4)
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Jim Fenton
Nov 08, 2021
When we were looking at contractors for our house to be sided, we acquired three quotes. Tri-State was in the middle with a better warranty than the other two competitors. We have a 3000 sq ft home with 19 windows. Due to material shortages, we had to wait quite some time, but we are glad we did. When the siding was delivered, they were very careful about placement of the trailer and took extra care not to damage our driveway when placing the dumpster.

Mark was our carpenter / sider and boy did he do a great job! Very meticulous and took his time to make sure everything lined up and looked as good as it could. He had a pleasant demeanor and was willing to talk with us about how it was going and helped with options we may have had to decide on. The job took a little longer than what was first thought, but it was worth it in the long run! We would HIGHLY recommend Tristate for you siding needs. Just remember, you get what you pay for and in this instance, we got a quality job at a fair price.
Larry Bedell
May 12, 2020
Tri- State just finished a big project for us and we are extremely happy. New siding, windows and front entryway. Excellent work, very fair price and the communication and responsiveness was top notch. I highly recommend them! Thank you Loren, Devin and Kelly!
Michelle Gile
Apr 21, 2020
I'm about 5 months late on posting my review because that's when John and Mike finished the job. We love our house it looks brand new, the guys did an excellent job. Especially for putting siding up in January with it being cold, windy, and snowy. They were professional, and friendly sharing high fives with my toddler and showing her how the tools work.

The job took longer than expected through no fault of the company or the guys on the job. It was January after all. 5 stars all around, will definitely hire them again for other jobs in the future!
Paul Andrews
May 11, 2015
It was a terrific experience working with Loren and his crew! We were quoted $15k for basic windows + flat picture from over-aggressive pitchmen at NewPro and Andersen. With Tri-State's $10k quote, we got Prairie grid windows, Bay window, and shutters! The crew was friendly, paid attention to detail, and very motivated. We are very pleased with our home's new appearance!