New siding is a big investment—and like anything on your home’s exterior, it takes a little care to keep it looking and performing its best.
Fortunately, LP® SmartSide® and Diamond Kote® finishes are designed to be low-maintenance and long-lasting. But a little routine upkeep goes a long way when it comes to protecting curb appeal and maximizing lifespan.
Here are our top siding maintenance tips to keep your home looking fresh year after year—especially in Montana’s rugged climate.
🧽 1. Clean Once a Year (or As Needed)
Just like windows, siding needs an occasional wash to remove dirt, dust, and pollen. You don’t need harsh chemicals or power tools—just a few simple supplies:
- Garden hose with spray nozzle
- Soft-bristled brush or sponge mop
- Bucket with a mix of water and mild dish soap
Avoid pressure washing, especially if you have a Diamond Kote finish. High pressure can damage the protective coating.
💡 Pro Tip: Start from the bottom up and rinse from the top down to avoid streaking.
🕵️ 2. Do a Seasonal Inspection
Walk around your home at least twice a year—spring and fall are ideal. Look for:
- Cracked or warped boards
- Loose nails or trim
- Gaps around windows and doors
- Signs of pest activity
- Mold or mildew, especially in shady areas
Early detection of small issues can prevent big repairs later on.
💨 3. Clear Away Landscaping & Debris
Make sure trees, shrubs, and vines are trimmed away from your siding. When vegetation sits too close, it traps moisture and invites insects, both of which can shorten the life of your siding.
Also be sure to:
- Clean out gutters and downspouts
- Avoid leaning ladders, grills, or tools directly on your siding
- Keep sprinklers from soaking the base of the walls
🔧 4. Re-Caulk as Needed
If you notice shrinking, cracking, or gaps in caulking—especially around windows, doors, or corners—it’s time for a touch-up. Proper caulking helps keep water out and prevents air leaks.
Use a paintable, exterior-grade sealant and smooth it out with a finger or tool for a clean finish.
Not comfortable doing it yourself? MCLC can inspect and reseal problem areas as part of a siding tune-up.
🪵 5. Watch for Water Warnings
Even the best siding can be undermined by water if not properly protected. Look for:
- Discoloration
- Soft spots
- Stains near joints or at the bottom of the wall
If you see these signs, your siding may be absorbing moisture—and that means it’s time to take a closer look.
💡 Bonus Tip: Choose Low-Maintenance Materials from the Start
When you choose LP SmartSide with a Diamond Kote finish, you’re already ahead of the curve. These products are:
✅ Pre-finished with a 30-year no-fade warranty
✅ Engineered to resist hail, rot, and insects
✅ Designed for easy cleaning with no repainting required
That means fewer weekends on a ladder—and more peace of mind.
Let’s Keep Your Home Looking Its Best
Whether your siding is brand new or you’ve had it for years, our team is here to help you protect it. We offer:
✔ Full siding replacements
✔ Siding repairs and touch-ups
✔ Annual maintenance support
✔ Design upgrades and trim refreshes
📞 Call MCLC Contracting at (406) 412-2036
🌐 Visit www.mclccontracting.com
📍 Proudly serving Deer Lodge, Butte, Missoula & Western Montana

