Opening a plumbing business in Fremantle, WA: Market & Competitor Analysis (2026)

Five plumbers currently operate in Fremantle. That's a competitive density score of 46 out of 100, meaning the market isn't saturated but has established operators. With a population of 16,720, you'd be looking at roughly one plumber per 3,344 residents—low enough to suggest room for new entrants, but high enough that you'd be entering an active market.

The data suggests it's worth serious consideration. Fremantle scores 72 out of 100 on market opportunity and 60 out of 100 overall. The effective density—how thinly operators are actually spread across the area—sits at just 17 out of 100, indicating weak ground coverage. Competitor strength is modest at 37 out of 100, so existing firms aren't dominant.

Youngs Plumbing & Gas leads with 4.9 stars across 279 customer reviews, followed by Urban Hot Water, Plumbing and Gas, also at 4.9 stars but with only 56 reviews. Pirate Plumbing holds a perfect 5-star rating but from just 6 reviews. None has overwhelming market dominance based on review volume.

Weekly household income averages $1,952 in Fremantle. That's modest middle-income territory. Residents can afford regular plumbing maintenance and repairs, but may be price-sensitive. Your pricing strategy needs to sit between affordability for locals and viability for your business—standard rates won't automatically work here.

Beyond licensing and registration (standard across WA), focus on three things specific to this market: contact the five existing operators to understand their service gaps and territory coverage; identify the Fremantle suburbs they neglect or underserve; and study why Youngs dominates on review volume—their customer communication model is clearly working and sets the local standard.