Plumbing Company Sale Price Benchmarks 2025
What are plumbing businesses selling for in 2025? A data-driven breakdown of plumbing company valuations by size, geography, and revenue quality.
Read Article →Valuation BenchmarksMay 2025 · 5 min read
Plumbing Business Valuation in Idaho: Boise & Coeur d'Alene Market Data 2025
Idaho plumbing businesses benefit from Boise's explosive population growth, Sun Valley luxury resort plumbing, Lake Coeur d'Alene lakefront estate market, and Idaho's flat 5.8% income tax.
JT
Jason Taken
HedgeStone Business Advisors
Idaho has been one of the fastest-growing states in the U.S. for five consecutive years — Boise metro's population growth consistently ranks in the top five nationally. This growth creates exceptional plumbing demand: new residential construction, commercial build-out, and infrastructure expansion drive strong revenue for Idaho plumbing businesses. Idaho's flat 5.8% income tax creates solid exit economics.
Idaho Plumbing Multiples
Idaho plumbing businesses sell for 2.5x–4.5x SDE. Boise metro (Ada and Canyon Counties) commands the strongest multiples — sustained population growth (Boise ranks among the top 10 fastest-growing metros nationally) drives continuous new residential construction plumbing (rough-in, trim-out, fixture installation) and commercial build-out. Major corporate relocations to Boise (Micron Technology, HP, Clearwater Paper, and Amazon distribution) have added commercial plumbing demand for manufacturing facilities, distribution centers, and corporate campuses. Plumbing businesses with both new construction relationships with the Treasure Valley's top homebuilders (Woodside Homes, D.R. Horton, Toll Brothers) and strong service-and-repair recurring revenue command the highest multiples.
Boise New Construction Market
Boise's housing market — driven by California, Washington, and Oregon transplants — has sustained homebuilding activity even through national construction slowdowns. The Treasure Valley's master-planned communities (Harris Ranch in Boise, Paramount in Meridian, and the Star, Kuna, Nampa, and Caldwell growth corridors) generate large-volume residential plumbing contracts. New construction plumbing in Boise's tract home corridor runs $12,000–$25,000 per home (rough-in plus trim-out), with the largest Treasure Valley plumbing contractors completing 300–800 new home plumbing installations per year. Plumbing businesses with established homebuilder relationships and the crew capacity to sustain high-volume new construction are the most acquisitive targets for private equity-backed national plumbing platforms expanding into the Intermountain West.
Sun Valley & Coeur d'Alene Luxury Market
Idaho has two distinct luxury resort plumbing markets — Sun Valley (Blaine County) in south-central Idaho and Lake Coeur d'Alene (Kootenai County) in the Idaho Panhandle — both generating premium residential plumbing revenue. Sun Valley's celebrity and ultra-high-net-worth seasonal residents commission complete plumbing systems for new lodge construction ($80,000–$250,000 per residence) and full bathroom renovation projects ($40,000–$120,000 per bath). Lake Coeur d'Alene's lakefront estates — second homes for Pacific Northwest tech executives and California transplants — require comparable luxury plumbing services. Plumbing businesses serving either market command billing rates 40–70% above Boise market rates for equivalent work.
Idaho at 5.8% — Favorable Mountain West Exit Tax
Idaho's flat 5.8% income tax (reduced from a graduated top rate to flat 5.8% effective 2023) creates favorable exit economics by Mountain West standards — better than Montana (6.75% top rate), Oregon (9.9%), and California (13.3%), and competitive with Utah (4.55%) and Nevada (0%). On a $1.5M plumbing exit, Idaho sellers pay $87,000 in state income taxes — versus $0 in Nevada or $148,500 in Oregon. Total effective rate in Idaho is approximately 28–29%. Idaho plumbing business owners with strong Boise metro homebuilder relationships, Sun Valley or Coeur d'Alene luxury resort credentials, or service-and-repair recurring revenue should engage a broker who can market these specific assets to national plumbing acquirers expanding into the Intermountain West.
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