Average Lifespan by Material
| Material | Lifespan | Warranty | Maintenance Required |
|---|---|---|---|
| Pressure-Treated Wood | 10–15 years | None | Stain/seal every 1-2 yrs, sand, replace rotted boards |
| Cedar | 15–20 years | None | Stain/seal every 1-2 yrs, annual inspection |
| Trex Enhance | 25+ years | 25 years | Occasional soap & water wash |
| Trex Transcend | 25–30+ years | 25 years | Occasional wash |
| TimberTech PRO | 25–30+ years | 30 years | Occasional wash |
| TimberTech AZEK | 30–50 years | 50 years | Occasional wash |
What Kills a Deck in Virginia
Freeze-thaw cycles (50–80 per winter): Water enters wood grain, freezes, expands, splits the board. Repeat 50+ times per winter and boards crack within 3–5 years without sealing. Capped composite is impervious — no water entry.
Humidity (70–90% in summer): Sustained moisture breeds mold, mildew, and rot in wood. Even sealed wood eventually absorbs moisture through end cuts and fastener holes. Composite's plastic cap prevents penetration.
UV exposure (200+ sunny days/year): Bleaches wood to gray within 12 months. Stain helps but must be reapplied every 1–2 years. Composite uses UV-stabilized pigments that fade minimally and stabilize.
Insect damage: Carpenter bees, termites, and wood-boring beetles target untreated wood in Virginia. Composite has no organic food source for insects.
Signs Your Deck Is Aging
- Boards feel soft or spongy when you walk on them
- Visible rot at post bases, where boards meet the house, or around fasteners
- Boards are splintering — especially on stairs and railings
- Deck feels bouncy or unstable (structural concern — inspect immediately)
- Railing posts wobble when pushed
- Stain/seal peels within months of application (wood is saturated)
- Visible mold or fungus that returns within weeks of cleaning
When to Resurface vs Replace
Resurface ✓
- Frame/joists are solid (poke test — screwdriver shouldn't sink in)
- Only surface boards are worn, faded, or splintering
- Footings are stable (no shifting or heaving)
- Ledger board connection is solid
Cost: 40–60% of a full rebuild
Full Replace ✗
- Joists are soft, cracked, or visibly rotting
- Posts are rotting at the base
- Footings have shifted or heaved
- Deck feels bouncy or unstable
- Ledger board is pulling away from house
Cost: Full rebuild price
Not sure which you need? We offer free deck inspections. We'll check every component and tell you honestly whether resurfacing will work or if a rebuild is the smarter investment.
Frequently Asked Questions
How long does a Trex deck last?
25-30+ years with minimal maintenance. Trex offers a 25-year warranty against structural failure.
How long does a wood deck last in Virginia?
PT wood: 10-15 years with annual staining, 5-8 without. Cedar: 15-20 years. Virginia's freeze-thaw and humidity accelerate deterioration.
When to resurface vs replace?
Resurface if the frame is solid and only boards are worn. Replace if joists are soft, posts rotting, or footings shifting. Free inspection to determine.