Deck Repair Cost: Boards, Railings, Stairs, and When to Replace (3 References)

Deck repair costs $750 to $2,500 for a typical job, with small fixes from $100 and structural work past $10,000.² Angi’s average is $2,247 and Fixr’s is $1,500.¹³ Labor runs $50 to $100 per hour, and most repairs take two to five hours.¹ Prices below are national averages* for 2026.

*National averages, not local quotes. Your price depends on the damage type, deck material, how much of the structure is involved, and local labor rates.

$750 – $2,500

typical repair, HomeGuide

$50 – $100/hr

labor, Angi

$1,500

average repair, Fixr

$10 – $55

per sq. ft., Fixr

Quick math: labor is the predictable part: 2 to 5 hours at $50 to $100 = $100 to $500, our arithmetic on Angi’s figures¹ — which is why a popped-nail job costs $150 total while board replacement with materials reaches thousands. Materials, not time, drive the top of the range.

Cost by repair type

Repair	Angi	HomeGuide	Fixr
Board replacement	$500 – $4,000 (job)	$175 – $875 per board	—
Railing repair	$500 – $4,000	$150 – $5,000	—
Loose stairs	$25 – $50 per stair	$150 – $300 per stair	—
Mold and rot	$200 – $500	—	—
Popped nails / fasteners	$0.30 per sq. ft.	$50 – $200	—
Post replacement	—	$150 – $500 per post	—

The stairs row is a genuine 6x disagreement: Angi’s $25 to $50 per stair prices tightening and re-fastening, while HomeGuide’s $150 to $300 covers damaged stringers and treads — same line item, different severity.¹² On boards, note HomeGuide lists both $125 to $625 and $175 to $875 per board on the same page (text versus table); the installed per-foot rate of $25 to $125 is the figure to quote from.²

Cost by material

Deck material	Repair cost per sq. ft.	Source
Vinyl	$10 – $30	Fixr
Metal (steel, aluminum)	$10 – $40	Fixr
Wood, composite, any	$10 – $55	Fixr
Replacement boards, installed	$25 – $125	HomeGuide
Repair materials only	$3 – $45	Angi

The three per-foot rows measure different things — Fixr prices the whole repair, HomeGuide prices board replacement installed, and Angi’s is materials alone — which is why they do not line up.¹²³ Cedar and pressure-treated lumber keep material costs low; ipe and composite sit at the top.¹

When repair stops making sense

Full deck replacement averages $8,000 (Angi)¹ and building new runs $4,500 to $18,000 at $30 to $60 per square foot.¹ Fixr’s high-end example — extensive termite damage on a 500 sq. ft. hardwood deck — is $10,000, past the cost of rebuilding.³ Permits for structural work run $225 to $500.¹ Widespread rot in posts and framing, not surface boards, is the usual tipping point.

Worked examples

Example 1 — popped nails on a 300 sq. ft. deck. Angi’s $0.30 per sq. ft. = $90, our arithmetic¹ — Fixr prices the same 300 sq. ft. nail job at $150 flat.³ Either way, this is the cheapest deck repair there is.

Example 2 — replacing five boards. HomeGuide’s $175 to $875 per board installed: $875 to $4,375, our arithmetic² — Angi’s whole-job board replacement range of $500 to $4,000 sits just under it.¹ Matching aged boards matters: new pressure-treated boards next to weathered gray ones will look wrong until they season.

Example 3 — four loose stairs. Tightening only (Angi): 4 x $25 to $50 = $100 to $200, our arithmetic.¹ Stringer damage (HomeGuide): 4 x $150 to $300 = $600 to $1,200, our arithmetic.² The inspection determines which quote you get — wobble is cheap, rot is not.

FAQ

Repair or replace the deck? Repair when damage is limited to boards, railings, or fasteners; replace when posts, joists, or the ledger are rotting — structural replacement averages $8,000.¹

Can I repair a deck myself? Re-setting popped nails, swapping a few boards, and tightening railings are realistic DIY; ledger, post, and stair-stringer work affects safety and often needs a permit.¹²

Do deck repairs need permits? Structural repairs can — budget $225 to $500 where required; cosmetic board swaps usually do not.¹

How do I make repairs last? Clean and seal after repair — decks fail early from moisture and UV, and sealing is the cheapest life-extender there is.

What does a wobbly railing cost? Tightening fasteners: $50 to $200.² Full railing replacement: $20 to $250 per linear foot by material.²

DIY shopping: exterior-rated deck screws are the fix for popped nails — replace, never re-hammer (plain link, no affiliate relationship).

Sources

Angi, How Much Does Deck Replacement or Repair Cost? (2026 data).
HomeGuide, How Much Does Deck Repair Cost? (2026).
Fixr, How Much Does It Cost to Repair a Deck?.