Transform Your Outdoor Space with Custom Composite Deck Solutions

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GM Home Improvements is now M2 Decks & Enclosures!

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Premier Custom Composite Deck Builder in Southeastern WI

M2 Decks & Enclosures is a trusted composite deck builder in Mukwonago, WI, specializing in TimberTech custom decks, Betterliving sunrooms, patio rooms, screen rooms, enclosed porches, awnings, canopies, solar shades, railings & decks, and outdoor living spaces across Pewaukee, Delafield, Hartland, Oconomowoc, and the surrounding areas of Southeastern, Wisconsin. We design and build low-maintenance, long-lasting decks tailored to your home and lifestyle.

Our under-deck drainage systems are designed to keep the area beneath your deck dry and usable year-round.

Enhance Your Home with Custom Decks Built for Wisconsin Living

We specialize in turning your outdoor spaces into extraordinary extensions of your home. With our expertise in custom deck building, we are dedicated to delivering not just a deck but a lifestyle enhancement tailored to your needs. We serve Waukesha, Washington, Walworth, Milwaukee, and Racine counties, as well as the surrounding areas.

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Our Services

At M2 Decks & Enclosures, we specialize in custom composite deck design and installation across Waukesha, Racine, Milwaukee, and the surrounding SE Wisconsin area. As a Platinum TimberTech installer, our blog covers everything from maintenance tips and color trends to design upgrades to make your outdoor space last longer and look better year-round.

Additional Services

In addition to our primary services, we also specialize in decks with lighting, LP/Miratech wrapping of below-deck support posts, specialized railings (cable, glass, drink rail) & referrals for trusted concrete and paver contractors.

Satisfied Customers

Financing Available

We understand that financing your dream deck should be as flexible and straightforward as possible. That’s why we offer a range of financing options tailored to meet your needs. Benefit from 0% promotional APR offers and get financing approval within just 2-3 business days. M2 Decks & Enclosures makes it easier than ever to fund your project and bring your vision to life!

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Why Choose Us

Tailored Design

Each deck is uniquely crafted to match your vision and home architecture.

Customer Satisfaction

Your happiness is our priority. We collaborate with you at every step to guarantee your deck exceeds expectations.

Quality Craftsmanship

Our builders are skilled artisans who take pride in every project, ensuring impeccable finishes and lasting durability.

Local Integrity

Being locally owned, we’re not just builders; we’re your neighbors committed to enhancing our community, one home at a time.

Certified Deck & Enclosures Builder

At M2 Decks & Enclosures, we take pride in elevating outdoor living spaces to new heights of beauty, functionality, and durability. We are a Platinum TimberTech PRO installer.

As a certified installer of TimberTech decking, the leaders in the composite decking industry, we harness the finest materials to transform your vision into reality. Our commitment to excellence is reflected in our choice of partners; TimberTech is renowned for its high-quality, low-maintenance decking solutions that not only look stunning but are built to last.

When you use a platinum installer, you receive an extended warranty on everything we install!

We are an authorized dealer of Betterliving Sunrooms, Patio Rooms, Screen Rooms, Enclosed Porches, Awnings, Canopies, Solar Shades, Railings, and Decks for homes and businesses.

Our commitment to excellence is reflected in our choice of partners; TimberTech is renowned for their high-quality, low-maintenance decking solutions that not only look stunning but are built to last.
Betterliving Sunrooms & Awnings is famous for sturdy, maintenance-free sunrooms to help you enjoy the outdoors in comfort.
We use durable and reliable Screeneze Porch Systems for our screen porch installations.

Expert Tips, Design Ideas & Outdoor Living Inspiration

At M2 Decks & Enclosures, we specialize in custom composite deck design and installation across Waukesha, Racine, Milwaukee, and the surrounding SE Wisconsin area. As a Platinum TimberTech installer, our blog covers everything from maintenance tips and color trends to design upgrades to make your outdoor space last longer and look better year-round.

At M2 Decks & Enclosures, we specialize in turning your outdoor spaces into extraordinary extensions of your home.

Transform Your Outdoor Space with Southeastern Wisconsin’s Trusted Custom Deck Builder

Ready to transform your outdoor space with a custom deck that reflects your style and meets your needs? M2 Decks & Enclosures, Southeastern Wisconsin’s premier custom deck builder, is here to bring your vision to life. Don’t wait any longer to start enjoying your dream deck. Contact us today to request a quote for your project and take the first step toward your ideal outdoor living space!

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Frequently Asked Questions

Yes. M2 Decks & Enclosures is a fully licensed and insured deck contractor in Southeastern Wisconsin, ensuring code-compliant construction and safe, professional installation.

Yes, M2 Decks & Enclosures offers composite deck repair, resurfacing, and maintenance services, including board replacement, railing upgrades, structural reinforcement, and surface cleaning. We’re happy to evaluate whether repair or replacement is the best long-term option.

Yes. Every project starts with a personalized design consultation to understand your space, lifestyle, and goals. We create custom layouts with features such as multi-level platforms, under-deck drainage, built-in seating, lighting, aluminum railings, and Cabana X pergola systems. Our team will help guide color selections, materials, and finishes to ensure a cohesive, high-end outdoor living space.

Yes. We provide flexible financing options to help make high-quality outdoor improvements more affordable. Ask us during your consultation for details and available plans.

Yes, we are known for large-scale composite deck builds and backyard transformations, including walk-out decks, multi-tier designs, and integrated outdoor living features. If you’re planning a premium remodel or full redesign, our team has the expertise to manage engineering, permitting, installation, and finishing details with precision.

Absolutely. M2 Decks & Enclosures provides strong manufacturer warranties from brands like TimberTech, along with workmanship warranties to protect your investment. Our goal is peace of mind, knowing your deck is built to perform and built to last.

Visit our online portfolio and project gallery to explore completed composite decks throughout Lake Country and Southeastern Wisconsin.  We also regularly update our Facebook page with recent projects. You can also read homeowner reviews to see why we’re one of the best-reviewed composite deck builders for residential homes in the region.

Choosing the right builder is key to ensuring long-term performance and value. Look for a deck contractor with proven experience, strong customer reviews, professional licensing and insurance, and a portfolio of completed composite deck projects. At M2 Decks & Enclosures, we’re a trusted local builder serving Waukesha, Oconomowoc, Pewaukee, Delafield, Hartland, Muskego, New Berlin, and surrounding areas in Southeastern Wisconsin, delivering premium craftsmanship and high-quality materials built to last in Wisconsin’s climate.

While composite decking has a higher upfront cost, it delivers significant long-term savings thanks to minimal maintenance and exceptional durability. No staining, sealing, sanding, or replacing warped boards—just long-lasting beauty and value.

Our process includes consultation, custom 3D design planning, permitting, framing and structural preparation, decking and railing installation, finishing details, and final walkthrough. We handle every detail so your project stays on schedule and stress-free.

We proudly install TimberTech composite decking, made from recycled materials that reduce environmental impact without compromising performance. TimberTech is fade-resistant, moisture-resistant, and delivers natural wood aesthetics without the upkeep of traditional lumber.

We specialize exclusively in custom composite, large-scale outdoor living environments and turn-key builds that elevate your home. As a TimberTech-certified installer and experienced composite deck contractor, we provide detailed design planning, structural engineering expertise, and transparent communication from start to finish, so you can enjoy the process and love the results.