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We are a Certified GAF lifetime roofing contractor, and we can offer better warranties than our competition.

Les Grumdahl Window & Siding - Logo
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Decks

Duluth Deck Services

Limited Lifetime Warranty | Free Estimates | Certified Installation

Limited Lifetime Warranty

Free Estimates

Certified Installation

Hours:

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Choose Quality Custom Decks by Azek and Trex

A deck is an excellent addition to any home. These outdoor structures add quality living space to your home for cooking, entertaining, relaxing, and more!


When you choose Les Grumdahl Window & Siding, we can help you with new deck installations from Trex or AZEK. We offer treated decking, cedar decking, PVC decking by Azek and Trex, along with matching options in railings. We also offer powder coated aluminum railings from Westbury railing. Westbury has a multitude of options including metal spindles, vertical and horizontal cable railing, and glass panel options. Our experts will start by designing your deck with your ideal color combinations. You can pick the main deck color, accent deck color, and the railing too!


Then, you can count on our certified installation crews to complete the project to perfection. We've been producing quality results for customers since 1947.


Plus, you won't find better brands. Trex is the world's top decking brand! Trex was the first company to combine the durability of recycled plastic with the natural beauty of reclaimed wood to create a high-performance decking product that is popular worldwide. With Trex, you'll get a low-maintenance deck that looks luxurious.


AZEK decks are just as impressive. When you let Les Grumdahl Window & Siding install AZEK decking, you'll get a beautiful, low-maintenance solution that is environmentally sustainable. AZEK is gaining traction in the market, and it's not hard to see why!


Like most of our products, we offer a limited lifetime warranty on our decking options. Be sure to visit us to learn more and ask for a free same-day estimate!

Your Local, Family-Owned Exterior Experts

You can trust Les Grumdahl Window & Siding for all your exterior projects. We're a local, family-owned company, and we've been working with residential and commercial customers for four generations.


Visit our beautiful showroom in Duluth, MN today! We respond to your needs as soon as possible, and we offer special discounts.

Enjoy Outdoor Living With a New Deck

Visit us to get a free estimate on a new deck

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I want you to know I love my house. Very happy! Tell Doug and crew they did a great job. Thanks again!

- H.S.J.

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