How to Maintain Your Deck & Keep It Looking New
A well-designed deck adds warmth, functionality, and style to any outdoor living space—but exposure to sun, rain, snow, and heavy foot traffic can take its toll. Whether you’ve invested in a new deck or want to preserve an older one, routine maintenance is key to maximizing its beauty and lifespan.
At Gorilla Exterior Co., we not only build high-quality decks throughout Pennsylvania, but we also help homeowners protect their investment with expert guidance and deck maintenance services. In this guide, we’ll show you how to clean, seal, inspect, and care for your deck to keep it looking like new year after year.
Why Deck Maintenance Matters.


Your deck is constantly exposed to the elements. Without proper care, even the highest-quality wood or composite decking can become weathered, stained, or structurally compromised. Regular maintenance:
- Prevents wood rot and mold growth
- Protects from UV and moisture damage
- Extends the life of your deck materials
- Preserves color and aesthetic appeal
- Increases safety and resale value
Step-by-Step Deck Maintenance Tips
1. Clean Your Deck Thoroughly
Over time, dirt, mildew, pollen, and stains can build up, causing your deck to look dull and deteriorate faster. For most decks, a pressure washer or stiff brush with deck cleaner will do the job.
Gorilla Exterior Co. recommends professional cleaning at least once a year, especially before sealing or staining. This ensures proper adhesion and revitalizes your deck’s surface.
Cleaning Tips by Material
- Wood decks: Use a wood-safe deck cleaner and scrub with the grain
- Composite decks: Avoid bleach; use a manufacturer-approved cleaner
- Painted/stained decks: Use gentle pressure to prevent surface damage
2. Inspect for Damage or Rot
After cleaning, do a full inspection. Check for:
- Loose or rusted fasteners
- Cracked, warped, or splintering boards
- Signs of mold, mildew, or dry rot
- Wobbly railings or stairs
Gorilla Exterior Co. offers professional deck repair services, addressing structural or cosmetic issues before they become costly problems.
3. Seal or Stain for Protection
Sealing or staining helps protect your deck from moisture, UV rays, and temperature extremes. The right product depends on your deck’s material and the local climate.
- Sealer: Clear coat for moisture protection
- Stain: Adds color and enhances wood grain
- Paint: Full coverage but requires more upkeep
How Often Should You Seal or Stain?
- Every 1–2 years for wood decks
- Composite decks may not need sealing but benefit from UV-protective washes
Gorilla Exterior Co. uses premium sealants and stains formulated for Pennsylvania’s climate to ensure long-lasting protection.
4. Trim Vegetation and Control Moisture
Keep bushes, trees, and vines away from your deck to reduce moisture retention and prevent mold growth. Clean between deck boards to ensure proper drainage.
A well-ventilated, dry deck lasts longer and stays healthier.
5. Seasonal Deck Maintenance Checklist
Spring
- Inspect for winter damage
- Clean and prepare for stain or sealant
- Tighten hardware
Summer
- Deep clean deck surface
- Monitor high-traffic wear areas
- Shade to prevent UV fading
Fall
- Sweep leaves and debris
- Trim back vegetation
- Apply a final coat of sealer
Winter
- Remove snow with a plastic shovel
- Avoid salt-based deicers
- Cover furniture and grills
Why Trust Gorilla Exterior Co. With Your Deck?
From deck construction and repairs to long-term maintenance, Gorilla Exterior Co. is your all-season deck specialist in Pennsylvania. We bring unmatched attention to detail, high-quality materials, and expert craftsmanship to every project.
Our Deck Services Include:
- Custom wood and composite deck builds
- Deck restoration and refinishing
- Routine maintenance plans
- Waterproofing and sealing
- Pergolas, stairs, and railing upgrades
- Full-service roofing and exterior solutions
Whether you’re maintaining an older deck or planning a brand-new one, we help you protect and enjoy your outdoor living space for decades to come.
FAQs About Deck Maintenance
1. How often should I clean my deck?
We recommend deep cleaning your deck once or twice a year, especially in spring and fall.
2. Do I need to seal or stain a composite deck?
Most composite decks don’t need sealing, but UV-protective cleaners help preserve color and surface quality.
3. What are the signs my deck needs repairs?
Loose boards, splinters, mold growth, and soft spots are all signs that your deck may need professional attention.
4. Can Gorilla Exterior Co. repair an existing deck?
Yes. We provide full deck repair and restoration services, including replacing boards, supports, and railings.
5. Is deck maintenance worth it if my deck is a few years old?
Absolutely. Regular maintenance prevents long-term damage, extends your deck’s life, and enhances your home’s resale value.