Maintenance and 10-year longevity

Spring opening — the routine that prevents the big bills

The first warm weekend in March or April, before you put the patio furniture back out, run this routine. It takes about an hour on a 200 sq ft deck and catches roughly 90% of the issues that turn into expensive repairs if ignored.

1. Walk the deck barefoot.Anything that feels soft underfoot, anything that flexes more than it did last year, anything that creaks where it didn’t before — mark it. These are the early signs of joist or ledger issues, and they don’t get better on their own.
2. Inspect the ledger and flashing.Look at the junction where the deck meets the house. On DFW brick-veneer homes, you want to see clean flashing above the ledger and un-blocked weep holes below. Water staining on the brick face or rust streaks under the ledger fasteners is a sign water is getting behind the flashing — that’s a contractor call, not a DIY fix.
3. Check joist hangers and post bases. All galvanized hardware should look uniform; rust streaks or missing nails are flags. Post bases should still be tight to the pier; any movement at the base means soil has shifted beneath the pier.
4. Sweep between the boards. Debris that sits between boards stays wet, accelerates rot on wood decks, and stains composite. A garden hose and a soft-bristle brush along the gaps handles it.
5. Pressure-wash on a low setting.1200–1500 psi maximum. Higher pressure damages wood fibre and can mar composite caps. Use a manufacturer-approved cleaner for the deck material — don’t use chlorine bleach on composite (voids many warranties).
6. Tighten railing posts. A loose post will get looser through Texas heat cycles. Snug the lag bolts at the base while you have the tools out.

Pressure-treated maintenance schedule

Pressure-treated needs the most attention of the four materials, especially under Texas UV. The maintenance number on a PT deck in DFW is roughly $0.60–$1.50 per sq ft per year, assuming homeowner DIY labour and off-the-shelf cleaner and stain. The rough schedule:

• Year 1.Don’t seal yet — fresh PT lumber is still off-gassing and won’t absorb sealant properly. Wash but don’t treat.
• Year 2 onward. Wash annually in spring, re-seal every 12–18 months. Texas UV shortens the refinish cycle compared with northern markets; a deck that goes 24 months between coats in Minnesota will need re-coating at 14 months in DFW.
• Year 5. Full structural inspection. Look at every joist hanger, the ledger flashing, every stair stringer connection. PT framing has a longer service life than the decking, but year five is the natural moment to verify everything is still tight.
• Year 10–12. Expect to replace 5–10 boards on the most sun-exposed runs (typically the south-facing edge and the deck-to-stair transition). The board cost is small; the labour is what matters. A handyman call covers it.
• Year 18–22.Total replacement is on the horizon. Framing may still be sound; decking is usually past its useful life. The replacement deck doesn’t need new piers if the original ones were placed properly.

Cedar maintenance schedule

Cedar weathers visibly faster under Texas sun than under northern climates. The colour goes from honey to grey-silver over about 18–24 months if left untreated; some homeowners want that look, others fight it.

• Year 1.Apply oil-based or semi-transparent stain if you want to preserve the original colour. Skip if you’re happy with the natural silvering.
• Year 2–3. Re-stain every 18–24 months under DFW UV exposure. Most homeowners can run two stain cycles before the colour starts to look uneven; at that point a full strip and re-stain is needed (or accept the silver patina).
• Year 5. Structural inspection. Cedar fastener-holds are tighter than PT, but the same ledger and joist-hanger checks apply.
• Year 8–12. Selective board replacement on the most exposed cuts. Cedar boards weather end-grain first; the cuts that catch the most rain and sun go first.

Composite maintenance schedule

Composite decks are mostly low-attention, with one DFW-specific watch-out: heat cycling. Composite expands and contracts more than wood with temperature, and a south-facing DFW deck swings through a 60–80°F surface temperature range daily in summer. That movement works fasteners loose over time and can pull hidden clips out of alignment.

• Year 1–2. Wash twice a year (spring + fall). Manufacturer-approved cleaner only; bleach voids most warranties.
• Year 5. Inspect hidden clips at joist crossings — heat cycling sometimes loosens them. Confirm fastener torque on the substructure.
• Year 5–10. Watch for fade and pitting, especially on south-facing runs. Photograph any changes against the original colour samples; if the deck is still in warranty, document early.
• Year 10–15.Warranty review. Most Trex-tier composites are warrantied 25 years against rot and stain; the fade warranty is typically shorter. File any claims while you’re inside the window — DFW heat tends to surface fade issues earlier than the warranty assumes.
• Year 20+. Composite typically outlasts the original framing. Plan to evaluate substructure at year 20–25 even if the decking still looks good.

PVC maintenance schedule

PVC is the most stable of the four materials in Texas heat. The capped surface reflects more solar energy than composite, and the fully synthetic core doesn’t carry the moisture- cycling vulnerabilities of wood-containing materials. The practical maintenance burden is the lowest of the four.

• Year 1–5.Wash twice a year. That’s the entire active maintenance schedule. Surface scratches buff out with the manufacturer’s repair kit.
• Year 5. Inspect fastener torque — PVC moves more than composite with temperature and back-out is the most common issue.
• Year 10+. Substructure becomes the limiting factor, not the boards. Inspect framing at year 10 and again at year 15.
• Year 25+. Most PVC warranties run to 25–50 years. Boards typically outlast the original framing on any reasonable build.

The year-5 structural check

Every deck, regardless of material, deserves a real structural inspection at year five. The maintenance schedules above cover the decking surface; year five is when the framing underneath starts revealing whether the build was done right. What you’re looking for:

• Pier movement. Has any post base shifted off the pier centerline? Expansive-clay soils across DFW move with moisture cycles; a pier placed without proper bell-bottom can ride up an inch or two by year five.
• Ledger condition. Pull a board near the ledger if you can. The ledger should be dry, the flashing intact, and the fasteners free of rust. Water infiltration behind the ledger is the most expensive deck repair, and the symptoms are usually visible at year five if you look.
• Joist hanger fasteners. Every joist hanger has 6–10 small fasteners. A few back-outs are normal; a pattern of back-outs across multiple hangers means the framing is moving.
• Lateral connection. The hold-down hardware where the deck attaches to the house should still be tight to both surfaces. Movement here is rare but consequential.

A handyman can do this inspection in about 90 minutes. Worth doing once at year five, again at year ten, and after any major weather event (hailstorm, tornado-grade winds, an unprecedented freeze like 2021).

The year-10 decision — refinish, repair, or replace

Year 10 is the decision-relevant horizon for most DFW deck owners. Where the deck has landed by then depends almost entirely on material:

• Pressure-treated. Most PT decks at year 10 need their first round of board replacement on the worst cuts plus a full strip-and-refinish. Total cost typically $1,500–$3,500 for a 200 sq ft deck. If the framing is sound, that buys you another 6–10 years.
• Cedar. Cedar at year 10 has gone through 4–5 stain cycles or full silvering. Selective board replacement plus a fresh stain pass typically runs $1,800– $4,000. Cedar framing usually outlasts the decking.
• Composite.Most composite decks at year 10 look essentially new with normal washing. The substructure is where any issues show up, and they’re usually minor — fastener torque, clip alignment.
• PVC. Indistinguishable from a 1-year-old deck if maintained. The framing is typically the limiting factor, not the boards.

When to stop DIY-ing and call a contractor

Some failure signs are above the DIY threshold even if they look small. The ones that warrant a contractor call, not a Saturday afternoon:

• Soft spot near the ledger. Water infiltration behind the brick-veneer flashing. The repair is invasive and time-sensitive; the longer the water stays back there, the more framing has to be replaced.
• Wobble in a stair stringer. Bottom anchor or top hanger failure. Stair collapses are the most common serious deck injury; not worth DIY-ing.
• Rust streaks under structural fasteners. The fasteners holding the deck to the house are corroding. Not a cosmetic issue.
• Pattern of joist hanger nails backing out. Framing is moving with the expansive clay below. Often means a pier has shifted; sometimes means the framing needs re-tying.
• Any board flex underfoot that wasn’t there last year. New movement is structural until proven otherwise.

For the printable version of the maintenance schedule by material — pin it inside the garage door so you actually do it — download the deck maintenance schedule PDF. Same numbers, formatted for the wall.