Transform your home's exterior with professional siding installation from Mass & Mass. We install James Hardie, vinyl, LP SmartSide, and cedar siding across Seattle, Bellevue, and all of King County — with expert craftsmanship and a focus on lasting moisture protection.
Your home's siding is its first line of defense against the elements — and in Seattle, those elements are relentless. With an average of 152 rainy days per year, constant moisture exposure, and winter temperatures that hover around freezing in the eastern suburbs, siding in King County has to work harder than almost anywhere else in the country. Failed siding does not just look bad. It allows moisture to penetrate your walls, leading to rot, mold growth, insulation degradation, and structural damage that costs far more to repair than a proactive siding replacement would.
At Mass & Mass LLC, we have been installing and replacing siding across Seattle, Bellevue, Kirkland, Redmond, Renton, and Sammamish since 2016. We understand the specific demands the PNW climate places on exterior cladding, and we install every project with moisture management as the top priority — because in this region, that is what determines whether your siding lasts 15 years or 50.
James Hardie is the gold standard for siding in the Pacific Northwest, and for good reason. Hardie fiber cement is engineered specifically for high-moisture climates. It will not rot, warp, or swell when exposed to Seattle's constant rain. It resists moss and algae growth. It is non-combustible, which provides an added safety margin. And the ColorPlus factory-applied finish holds up dramatically better than field-painted alternatives, resisting fading and peeling for 15+ years before a repaint is needed.
We install HardiePlank lap siding, HardieShingle panels for accent areas, HardiePanel vertical siding, and HardieTrim for clean, finished edges. Available in over 700 ColorPlus colors, Hardie fiber cement lets you achieve virtually any aesthetic — from modern farmhouse to classic Craftsman — while getting unmatched durability in our climate.
LP SmartSide offers the authentic look and feel of real wood siding with significantly improved durability. Made from engineered wood treated with SmartGuard technology — a zinc borate-based process that resists fungal decay, termites, and moisture — LP SmartSide is a strong mid-range option for homeowners who want a natural wood appearance without the maintenance burden of natural cedar. It comes in lap, panel, and trim profiles, and can be painted any color you choose.
Modern vinyl siding is a far cry from the thin, easily-damaged products of decades past. Today's premium insulated vinyl siding provides excellent moisture resistance, never needs painting, and adds a measurable R-value to your wall assembly. For homeowners focused on budget efficiency without sacrificing curb appeal, vinyl is a smart choice. We install CertainTeed and Ply Gem vinyl siding products that are backed by strong manufacturer warranties and offer a wide range of colors and profiles including Dutch lap, beaded, and board-and-batten styles.
Western red cedar has been a Pacific Northwest siding staple for over a century, and its natural beauty is undeniable. Cedar contains natural oils that resist rot and insect damage, and when properly maintained, a cedar-sided home has a warmth and character that no manufactured product can fully replicate. We install cedar in horizontal lap, vertical board-and-batten, and shingle patterns. The trade-off is maintenance: cedar requires staining or painting every 3 to 5 years in our climate to maintain its protective finish and appearance.
Board and batten is one of the most popular exterior design trends in the Seattle area right now, especially for modern farmhouse and contemporary styles. We install board and batten in Hardie fiber cement, LP SmartSide, and cedar — depending on your budget and maintenance preferences. The vertical lines of board and batten create a striking visual effect that can make even modest homes look architecturally distinctive.
Not sure which siding material is right for your home? Our free exterior assessment includes a material recommendation based on your home's specific exposure, your aesthetic goals, and your budget. We will bring samples and help you visualize the finished product before you commit. Call (425) 435-5800 to schedule yours.
Siding does not always fail dramatically. Often, it deteriorates gradually, and homeowners do not realize the extent of the problem until moisture has already caused significant hidden damage. Watch for these warning signs:
In the Pacific Northwest, siding is only as good as the moisture management system behind it. Every siding installation we perform includes proper house wrap — a weather-resistant barrier that prevents bulk water from reaching your wall sheathing while still allowing moisture vapor to escape from inside the wall cavity. We use premium house wrap products from Tyvek or equivalent manufacturers, and we install them with careful attention to lapping, seaming, and integration with window and door flashings.
We also install rain screen systems when appropriate. A rain screen creates a narrow air gap between the siding and the house wrap, allowing any moisture that gets behind the siding to drain and dry rather than sitting against your wall. For areas with heavy rain exposure — which is most of King County — a rain screen dramatically extends the life of both the siding and the wall structure behind it.
According to the National Association of Realtors, new siding consistently ranks as one of the highest-ROI exterior improvements a homeowner can make. In the Seattle metro area, where curb appeal matters immensely in a competitive real estate market, the return is even stronger. James Hardie fiber cement siding replacement recoups approximately 80-90% of its cost at resale, and the improvement in marketability — how quickly your home sells and how many offers you attract — is significant. Buyers in Bellevue, Kirkland, and Redmond particularly value low-maintenance, high-durability siding that they know will not require major work for decades after purchase.
Typical price ranges for siding installation in the Seattle and King County area. Costs include removal of existing siding, house wrap, and professional installation.
| Material | Cost per Sq Ft (Installed) | Estimated Lifespan |
|---|---|---|
| Vinyl Siding | $6 – $9 | 25 – 40 years |
| LP SmartSide | $8 – $11 | 25 – 35 years |
| James Hardie Fiber Cement | $10 – $15 | 40 – 50+ years |
| Natural Cedar | $10 – $14 | 20 – 30 years |
| Board & Batten (Hardie) | $12 – $16 | 40 – 50+ years |
* Prices are estimates for typical residential installations. Your actual cost depends on home size, number of stories, trim complexity, and material selection. We provide exact pricing in your free written estimate.
We inspect your current siding, check for hidden moisture damage, evaluate the sheathing condition, and discuss your goals for the project — all at no cost.
Based on your home's exposure, your aesthetic preferences, and your budget, we recommend the ideal siding material and bring physical samples for you to see and touch.
We help you select colors that complement your roof, trim, and landscaping. For Hardie Board, we use the ColorPlus palette to show exactly how factory-finished colors will look on your home.
Our crew removes old siding, repairs any damaged sheathing, installs house wrap and flashing, and applies your new siding to manufacturer specifications. We work clean and protect your landscaping.
We walk every inch of the project with you, ensure every detail meets your expectations, review warranty coverage, and clean up completely before we leave.
New siding is the single biggest impact you can make on your home's curb appeal, energy efficiency, and weather protection. Get a free assessment from Mass & Mass today.