Composite decking materials and vinyl rail systems have come a long way in the last few years, and are no longer limited to a couple of basic colors. Let Interstate Contracting show you the wide variety of options that are now available and put an end to the maintenance headaches with traditional wood decks and rails. We offer only the best materials from manufacturers like Weatherbest, Trademark, Procell, Oasis, Tamco and Trex, and our expert installers will give your property a new and permanent face lift.


Maybe you are considering upgrading that old deck to a three season room. Interstate Contracting can custom build your special room that lets you enjoy the outdoors no mater what the weather brings. A new three season room from Interstate Contracting can add beauty, versatility and value to your home.




There’s no better way to protect your home than by keeping a good roof over your head. At Interstate Contracting, we’ve been professionally installing and repairing roofs Southern NH, and Northern MA. A correctly installed roofing system will keep out wind and water that might damage your eaves, walls, and more.


Usually the first question that we're asked about our roofing services is, “how much will this cost?" There are so many features of your roof that make it unique from any other roof that we recommend having a thorough inspection and estimate first. The choices available to you and your roof may vary according to your
Homeowner's Associations, house style, roof pitch, etc., so once an inspection and estimate have been made, you can safely balance your budget for your home's needs.



Seamless Gutters

Interstate Contracting seamless gutters are custom designed on location to eliminate leaky joints and to ensure a perfect fit. A proper fit and professional gutter installation can help protect your home from erosion and damaged caused by runoff water, and can eliminate expensive future repairs. We are highly experienced in southern New Hampshire at expert gutter installation, older gutter repair services, rain gutters and roofing. Whether you need to newly install gutters or eaves, rain gutter repair services, or metal roofing, we offer a gutter service to meet your needs.


Brick Walkways, Retaining Walls, and Patios

Did you know that retaining walls have been proven to increase property value by as much as 15%? That's because they are a great way to gain space where land would otherwise be unusable. However, retaining walls are quite possibly the most complex and difficult component of any landscape installation. By definition, a retaining wall is a structure that is intended to hold back, or retain soil and earth. It is therefore imperative to properly plan, design, and execute the construction to ensure the wall will function properly, safely, and remain intact for a lifetime. Our staff is well trained and experienced in the construction of many different styles of retaining walls, walkways and patios.

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