HVAC Business Valuation Multiples 2025: What Buyers Are Paying
HVAC companies are commanding 2.5x–5.0x SDE in today's market. Here's exactly what's driving those multiples up — and what's dragging them down.
Read Article →Valuation BenchmarksMay 2025 · 5 min read
HVAC Business Valuation in New Hampshire: Manchester & Portsmouth Market Data 2025
New Hampshire HVAC businesses benefit from Manchester's corporate and healthcare complex, Portsmouth's historic district and naval shipyard accounts, and New Hampshire's 0% income tax on wages — among the best exit economics in New England.
JT
Jason Taken
HedgeStone Business Advisors
New Hampshire occupies a unique position in New England — a state with no income tax on wages and no sales tax, creating the most seller-friendly exit environment in the region. Manchester's growing tech and healthcare corridor, Portsmouth's naval shipyard and luxury coastal market, and the state's position as a Boston suburb with lower costs of living create a strong HVAC market. New Hampshire's interest and dividend tax (4% in 2023, declining to 0% by 2027) further improves the exit outlook.
New Hampshire HVAC Multiples
New Hampshire HVAC businesses sell for 2.5x–5.0x SDE. Manchester (Hillsborough County) is the primary market — New Hampshire's largest city with Elliot Hospital and Catholic Medical Center (the city's two major hospital systems), Southern New Hampshire University (SNHU — one of the nation's largest online universities with a large Manchester campus), and a growing tech startup and financial services corridor. Nashua (Hillsborough County) adds the Nashua-to-Boston commuter corridor's affluent residential market, BAE Systems' Nashua facilities, and New Hampshire's Route 3 commercial corridor. Portsmouth (Rockingham County) adds the Portsmouth Naval Shipyard (across the river in Kittery, Maine but served by NH contractors), Pease International Tradeport's commercial complex, and Portsmouth's thriving historic district.
Portsmouth Naval Shipyard and Defense HVAC
Portsmouth Naval Shipyard — located across the Piscataqua River in Kittery, Maine but the largest employer in the Portsmouth-Dover-Rochester NH metro area (employing 7,000+) — is one of four active submarine repair shipyards in the U.S. The shipyard's complex of dry docks, submarine maintenance facilities, and support buildings requires specialized HVAC: nuclear submarine maintenance facility HVAC must control humidity to prevent corrosion of precision electronics, dry dock environments require industrial ventilation for confined space safety, and office and support buildings require standard commercial HVAC. HVAC businesses with Naval Shipyard security access credentials and federal facility contracting experience (NAVSEA and Department of Navy contracting requirements) generate recurring federal maintenance contract revenue at the highest billing rates in New Hampshire.
Boston Suburb New Construction and Residential Market
Southern New Hampshire — the Nashua, Hudson, Londonderry, Bedford, and Derry corridor — functions as a Boston suburb, with homeowners choosing New Hampshire's lower taxes while commuting to Massachusetts jobs. This market drives strong residential new construction and high-end residential replacement HVAC. Luxury new home construction in Bedford and Londonderry (two of New Hampshire's highest-income towns) generates $20,000–$45,000 per HVAC system installation. HVAC businesses that serve both the Nashua residential replacement market (New Hampshire's oldest suburbs with aging HVAC systems) and the new construction market in Bedford, Hollis, and Amherst command the strongest residential HVAC recurring revenue in the state. The Massachusetts transplant demographic creates high demand for central air conditioning — historically less common in New Hampshire but increasingly expected by Boston-area transplants.
New Hampshire at 0% — New England's Best Exit Economics
New Hampshire has no income tax on wages or business income — only a tax on interest and dividends (4% in 2023, declining to 0% by 2027 under HB 2). Business sale proceeds — classified as capital gains, not interest or dividends — are generally not subject to New Hampshire's interest and dividend tax, making New Hampshire effectively a 0% income tax state for business exits. On a $1.5M HVAC exit, New Hampshire sellers pay $0 in state income taxes — versus $107,250 in Maine (7.15%), $131,250 in Vermont (8.75%), or $89,850 in Rhode Island (5.99%). Total effective federal rate in New Hampshire is approximately 20–23% for qualified business income. New Hampshire HVAC business owners with Portsmouth Naval Shipyard credentials, Elliott or CMC hospital HVAC accounts, or Nashua commercial preventive maintenance agreement portfolios should engage a broker who can market New Hampshire's exceptional tax profile to national acquirers.
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