Materials
Diamond Kote
Prefinished engineered wood siding with a 30-year no-fade warranty

Diamond Kote
Est. 2006Prefinished engineered wood siding with a 30-year no-fade warranty
Headquartered in Prairie du Sac, Wisconsin
Diamond Kote is a factory-finishing system built on LP SmartSide engineered wood — combining the impact resistance and SmartGuard protection of engineered wood with a proprietary prefinish made from metal oxide pigments. The result is siding backed by a 30-year no-fade warranty and a 50-year substrate warranty, so Missouri homeowners get rich, lasting color without the repaint cycle.
Why homeowners choose it
30-year no-fade finish
Metal oxide pigments are factory-applied in a controlled environment, keeping colors sharp for decades — backed by a written 30-year no-fade warranty.
Real engineered wood
Built on LP SmartSide substrate treated with the SmartGuard process for resistance to termites, rot, and fungal decay.
Hail & impact toughness
Engineered wood absorbs impact far better than fiber cement or vinyl — a practical choice for St. Louis-area storm season.
RigidStack™ technology
Patented rigid stacking system creates deeper shadow lines and added strength — the architectural look of a custom build.
Low maintenance
The proprietary finish resists dirt, grime, and impact from debris — rinse it down occasionally instead of repainting every few years.
Any color you can imagine
Choose from curated collections, DuoBlend stain looks, WoodMark woodgrain finishes, or send a sample for a true custom color match.
Product Lines
Lap Siding
Most PopularClassic horizontal lap with RigidStack™ for deep shadow lines — clean, timeless curb appeal in any color.
Board & Batten
ModernBold vertical design with sophisticated dimension — the go-to look for modern farmhouse exteriors.
Panel Siding
ContemporarySleek, smooth panels for a refined, modern canvas on full walls or accent sections.
Shakes & Shingles
AccentRich texture and depth for gables and accent walls — straight-edge or staggered-edge profiles.
Nickel Gap
DesignerPrecision spacing and crisp shadow lines for a polished, tailored modern aesthetic.
Trim & Accessories
FinishingMatching prefinished trim, RigidMount utility blocks, corners, and weatherproofing — one coordinated system in one color.
Beyond the surface
A complete system
Long-term performance depends on the materials behind the visible roof or siding, plus careful installation at every opening, edge, and transition.
Engineered substrate
LP SmartSide boards treated with zinc borate, waxes, and resins resist moisture, termites, and decay from the inside out.
Factory-applied finish
Multiple coats of metal oxide pigment finish are applied under controlled conditions — no weather delays, no thin field-applied coats.
RigidStack™ strength
The patented stacking profile locks boards together for added rigidity and pronounced shadow lines.
Weatherproofing layer
A moisture-management system behind the siding prevents warp and rot in the wall assembly.
Matched trim package
Corners, trim, vents, and utility blocks arrive prefinished in the same color for a cohesive exterior.
Correct installation
Clearances, fastening, flashing, and joint details follow manufacturer specifications to keep the full warranty valid.
Warranties
30-Year No-Fade Warranty
The factory finish is warranted against fading for 30 years — among the strongest finish warranties in the siding industry.
50-Year Substrate Warranty
The engineered wood substrate carries a 5/50-year limited warranty against manufacturing defects.
Technology & Certifications
Metal Oxide Pigment Finish
Proprietary pigments resist UV breakdown, dirt buildup, and impact — the technology behind the 30-year no-fade warranty.
Built on LP SmartSide
SmartGuard-treated engineered wood delivers impact, termite, and rot resistance as the foundation of every board.
Custom Color Matching
Send a 2" x 2" sample of any color and Diamond Kote will match it — a signature look no stock palette can offer.
Colors & Finishes
Solid Color Collection
Carefully crafted solid hues from Arctic White to Midnight and Onyx — timeless or bold, your call.
DuoBlend Collection
The warmth of a stained-wood look without stain maintenance — Denali, Chestnut, Honeycomb, and more.
WoodMark Collection
Authentic woodgrain textures in non-repeating patterns modeled on walnut, teak, oak, pine, and ash.
Mixed-profile design
Pair lap siding with board & batten gables or shake accents — all color-matched from the factory.
Interactive design suite
Explore Diamond Kote® colors on your home
Open the official Diamond Kote® Color Studio & Home Visualizer to experiment with siding styles, textures, and curated color palettes — then bring your favorites to your free estimate.
Common Questions
How is Diamond Kote different from painting siding myself?
Diamond Kote's finish is factory-applied with metal oxide pigments in controlled conditions — consistent coverage, no weather delays, and a 30-year no-fade warranty. Field-applied paint typically needs recoating every 7–10 years and carries no comparable fade warranty.
Is Diamond Kote real wood?
It's engineered wood — real wood strands treated with the SmartGuard process (zinc borate, waxes, resins) for termite, rot, and fungal resistance, built on the LP SmartSide substrate.
What does the 30-year no-fade warranty cover?
It warrants the factory finish against fading for 30 years, and the substrate carries a separate 5/50-year limited warranty. Coverage is subject to Diamond Kote's current written warranty and proper installation.
Can I get a custom color?
Yes — send a sample (2" x 2" minimum) of any color and Diamond Kote will create a custom match. We can also review the curated Solid, DuoBlend, and WoodMark collections at your estimate.
How does it hold up to Missouri hail?
Engineered wood is significantly more impact-resistant than fiber cement or vinyl, and the proprietary finish resists damage from flying debris — a strong combination for St. Louis storm season.
Ready to upgrade with Diamond Kote?
We'll help you choose the right Diamond Kote product for your home and budget — no pressure, no upsell.
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