How much should I budget for fence post replacement in New Brunswick?

Replacing fence posts in New Brunswick typically runs $50–$150 per post for materials alone, or $150–$400 per post installed by a contractor — with the wide range driven by post material, soil conditions, and how many posts need replacing.

Here's how the numbers break down across common scenarios:

Pressure-treated wood posts (the most common choice in NB) run $15–$40 each for a standard 4x4x8, plus concrete for setting. A contractor replacing 10 posts on a typical backyard fence would likely quote $1,500–$3,000 all-in, including labour, concrete, and disposal of the old posts. If you're replacing just one or two rotted posts, expect a minimum service call of $200–$400 regardless of post count — most contractors have a job minimum.

Cedar posts cost more upfront ($30–$60 each) but resist rot significantly better in New Brunswick's wet climate, especially near coastal areas like Shediac or Saint John where salt air accelerates decay. Steel or aluminum posts are the premium option at $60–$150+ per post but essentially eliminate the rot problem entirely — worth considering if you're replacing posts for the second time.

New Brunswick's 4-foot frost line is the critical factor here. Posts must be set at least 4 feet deep (deeper in inland areas like Fredericton and Woodstock) to prevent frost heave from pushing them out of the ground every spring. This is almost always the reason posts fail prematurely — they were originally set too shallow. If a contractor quotes post depths of only 2–3 feet, walk away. Proper depth means more concrete and more labour, but you won't be doing this again in five years.

Soil conditions vary considerably across the province. Clay-heavy soils (common in the Saint John River valley and much of southeastern NB) hold moisture against wood posts and accelerate rot. Sandy soils drain better but provide less lateral support. Rocky ground in parts of northern NB can make digging significantly harder and push labour costs higher.

This is genuinely good DIY territory if you're replacing a few posts and comfortable with a post-hole digger or renting a power auger ($75–$125/day from most NB equipment rental shops). The job requires no permits for a standard residential fence under 2 metres, no licensed trades, and no inspections. Just confirm your local municipal setback requirements — most NB municipalities require fences to sit 0.5–1 metre from the property line, and some have height restrictions. If you're in an unincorporated rural area, check with your Regional Service Commission.

One practical tip: call 1-800-DIG-SAFE (1-800-344-7233) before any digging — it's free, it's the law, and it locates underground utilities so you don't hit a gas or electrical line while setting posts.

For multiple posts or a full fence replacement, getting 2–3 quotes from local contractors is always worthwhile. You can find fencing contractors serving your area through the New Brunswick Construction Network directory.