Windsor's Outdoor Living Build Specialists
At Kingsway Mastercraft, every outdoor living build starts with the same question: what material is actually built for this environment? For us, the answer is always Polywood — a high-density polyethylene sheet product used by boat and yacht manufacturers since 1988. It never needs painting, staining, or refinishing. It doesn’t rot, warp, crack, or fade. It holds up to Windsor winters, summer humidity, and everything in between without losing its finish or requiring a single hour of maintenance. Whether we’re building an outdoor kitchen, a backyard sauna, a poolhouse, or a custom shed, Polywood is the material that makes the build worth making.
Behind Every Kingsway Build

King's Guard is the structural backbone of the Dynasty System — an eco-friendly, all-weather marine-grade plywood engineered to perform in environments where standard building materials fail. Unlike conventional plywood that delaminates, swells, and deteriorates under moisture and seasonal stress, King's Guard is specifically selected for its long-lasting resistance to fungi, insects, and structural breakdown over time.

King's Shield is Kingsway's proprietary urethane coating system — developed after 12 months of testing seven different specialty plywoods and six different coating systems, culminating in a partnership with a world leader in cutting-edge urethane coating technology. The result is an eco-friendly, waterproof, and antimicrobial finish that bonds to the substrate and protects it from chemical exposure, impact, UV degradation, and microbial growth.

King's Armour is the high-density polyethylene component of the Dynasty System — an eco-friendly, lifetime-finished HDPE material used for doors, drawers, gables, toekicks, and exterior surfaces across Kingsway's full product range. It will not fade, rust, rot, or delaminate. It's chip and dent resistant, maintenance-free, and carries the kind of surface integrity that allows it to look as sharp in fifteen years as it does on installation day.
What We Build
Every project is designed around how you want to use your space and built from Polywood, the only outdoor material that genuinely holds up to Canadian seasons without demanding anything back.
Backyard Structures Built Different
A backyard shed or poolhouse built from wood looks great for a few years — until the paint starts peeling, the boards start warping, and the maintenance schedule starts feeling like a second job. Kingsway builds all outdoor storage structures from Polywood, which means the structure you invest in today looks and performs exactly the same in fifteen years.
Recovery. Relaxation. Right in Your Backyard.

Recovery is no longer something that happens only at the gym or the spa — more Windsor homeowners are investing in dedicated backyard wellness spaces that bring that same level of recovery home. Kingsway designs and builds custom outdoor recovery spaces that can incorporate saunas, cold plunge installations, rest areas, and storage.

Cold plunge therapy has moved from elite athletic facilities into Windsor backyards — and Kingsway builds the outdoor installations to support it properly. A cold plunge integrated into your backyard wellness space needs to be built for outdoor exposure, temperature variance, and consistent use through every season Ontario delivers.

A backyard sauna is one of the highest-value wellness investments a Windsor homeowner can make. Our outdoor sauna installations are custom-designed around your backyard space, properly insulated for Ontario winters, and housed in Polywood exterior structures that stand up to snow, humidity, and UV exposure without warping, or requiring refinishing.
Client Testimonials
We walk your backyard, assess the space, and talk through your vision — what you want to build, how you want to use it, and what your budget looks like.
We develop a detailed design plan and a transparent, itemized quote based on your space and goals. You'll see exactly what's included, what materials are being used, and what the total investment looks like.
Once the design and quote are approved, we finalize your Polywood colour selections and any remaining customization details. Polywood is available in a range of standard and custom colours, finishes, and sizes.
We execute the build on schedule, with the same precision and care we bring to every Kingsway project. When it's complete, we walk you through every element of the finished space.
Polywood is a high-density polyethylene sheet product that has been used by boat and yacht manufacturers since 1988. It’s waterproof, UV stable, mold and mildew resistant, and built to hold up in harsh outdoor environments — which is exactly why we use it for every outdoor living structure we build. Unlike wood that rots and needs regular staining or composite that fades and cracks over time, Polywood requires zero maintenance over its lifetime.
Yes — this is one of Polywood’s core strengths and the primary reason we use it for outdoor builds in Windsor-Essex. Polywood is fully weatherproof and designed to handle the full range of Canadian seasonal conditions, including freeze-thaw cycles, heavy snow loads, road salt exposure, and summer humidity. It won’t crack, warp, rot, or lose its finish under any of these conditions. It can be left outdoors year-round without any protective covering or seasonal maintenance.
Yes. Many of our outdoor kitchen builds are installed on existing decks, patios, or concrete pads. During the on-site consultation we assess the existing structure to confirm it can support the build, and we design the kitchen layout to work within the footprint and features of your current space. If modifications are needed to properly support the installation, we’ll identify those during the consultation and factor them into the project plan.
Yes — with the right design and installation approach. A cold plunge intended for year-round outdoor use in Windsor needs proper insulation, freeze protection, and a housing structure built for Ontario’s seasonal temperature range. We design cold plunge installations with all of these factors in mind, ensuring the setup performs reliably in every season.