Builder Costs in Invercargill — How Much in 2026?

Job Type	Typical Cost (NZD incl. GST)	Unit
Deck (timber)	$2,700 – $13,500	depends on size
Pergola	$2,700 – $9,000	depends on size
Fence (timber)	$70 – $180	per metre
Retaining wall	$180 – $540	per m²
Kitchen renovation	$18,000 – $54,000	full reno
Bathroom renovation	$13,500 – $36,000	full reno
Sleepout / granny flat	$45,000 – $135,000	depends on size
House extension	$2,250 – $4,050	per m²
Window replacement	$450 – $1,350	per window

Indicative prices only. These ranges are based on typical NZ market rates in Invercargill and may vary depending on job complexity, access, materials, and your specific requirements. The best way to get an accurate price is to get quotes from local tradies.

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