How Much Does Deck Board Replacement Cost?

The average cost to replace deck boards in Naperville and the Chicago suburbs in 2026 is $8 to $22 per square foot of replaced area. This includes removal of old boards, disposal, new material, and installation labor.

For a typical residential deck needing partial board replacement (about 25% of the deck surface), expect to pay between $600 and $2,500. Full deck board replacement on a standard 300 sq ft deck ranges from $2,400 to $6,600.

These prices assume the underlying joists and framing are in good condition. If rot has spread to the structure beneath, structural repairs add $500-$3,000 to the total cost depending on the extent of damage.

Pressure-Treated Lumber: $8-$14 per sq ft. The most affordable and common option. Lasts 10-15 years with proper maintenance. Requires staining every 2-3 years.

Cedar: $12-$18 per sq ft. Naturally resistant to rot and insects. Has a beautiful natural color but still needs sealing. Lasts 15-20 years.

Redwood: $15-$22 per sq ft. Premium appearance with excellent durability. Naturally resistant to moisture and insects. Requires less maintenance than treated lumber.

Composite Decking: $18-$28 per sq ft. Higher upfront cost but virtually maintenance-free. No staining or sealing needed. Lasts 25-30 years. Best long-term value for many homeowners.

PVC Decking: $20-$32 per sq ft. The most expensive option but completely waterproof and immune to rot, mold, and insects. Ideal for ground-level decks or wet environments.

Extent of damage. Replacing 5 boards is straightforward. Replacing 50 boards plus joists requires more labor, materials, and time. The more damage, the higher the cost.

Board accessibility. Ground-level decks are easier to work on. Elevated decks or decks built against houses require scaffolding or special equipment, adding labor costs.

Matching existing deck. If your deck has a specific stain color or custom board pattern, matching new boards to old ones requires extra care and sometimes premium materials.

Fastener type. Hidden fasteners create a cleaner look but cost more in labor. Face-screwing is faster and cheaper but shows screw heads.

Railing and stairs. If boards on stairs or landings need replacement, these areas are more complex to work on and may cost 20-30% more than flat deck areas.

Disposal fees. Old deck boards must be hauled away. Some contractors include this in their quote, others charge separately ($100-$300 for typical loads).

DIY deck board replacement can save 40-50% on labor costs. Material costs remain the same. For a 300 sq ft deck, DIY saves approximately $800-$1,500 in labor.

However, DIY has hidden costs and risks. You need proper tools (circular saw, impact driver, pry bar, level) which may cost $200-$400 if you do not own them. Mistakes like improper board spacing or uneven cuts can cause drainage problems and premature failure.

Professional contractors also spot hidden issues that homeowners miss — rotted joists, inadequate ledger flashing, or improper structural connections. Fixing these during board replacement prevents costly repairs later.

For most Naperville homeowners, professional board replacement is the better value. The labor cost is offset by proper installation, warranty protection, and the peace of mind that the job is done right.

Act early. Replacing a few boards at the first sign of rot costs $300-$600. Waiting until rot spreads to joists turns a small repair into a $2,000+ project.

Bundle with staining. If you need board replacement AND the rest of your deck needs staining, doing both at once saves on mobilization costs. Contractors charge less for combined projects.

Choose the right material. Pressure-treated lumber is perfectly adequate for most Naperville decks. Only upgrade to composite or PVC if you specifically want low maintenance or have recurring rot issues.

Get multiple quotes. Prices vary significantly between contractors. Get 2-3 quotes from licensed, insured deck repair companies in the Naperville area.

Ask about off-season discounts. Some contractors offer 10-15% discounts during slower months (November through February) when demand is lower.