Boiler Maintenance Contract Cost Calculator

Boiler maintenance contracts protect against heating failures in multifamily/commercial.

Boiler count

Boiler size (BHP)

Annual contract / boiler

Emergency events / yr

Emergency cost / ea

Annual cost

$8,500

Contract base

$6,000

Emergency cost

$2,500

How the math works

Contract = boilers × annual. Total = contract + emergency events.

2 × $3,000 + 1 × $2,500 = $8,500 annual cost.

How to Use

Enter boiler count.
Enter boiler size (BHP).
Enter contract level (basic/PM/full).
Enter per-visit service cost.
Enter emergency events per year.
Read annual cost.

Frequently Asked Questions

Contract types?

Basic inspection-only: 1-2 visits/year, $400-1,200/boiler/year. Preventive maintenance (PM): 4-6 visits + standard repairs, $1,500-4,000/boiler/year. Full service (including parts, emergency): $2,500-8,000/boiler/year. Boiler size matters: small residential boilers (<2M BTU): cheaper. Commercial (5M+ BTU): expensive. Very large (high-rise 10M+ BTU): $5-15k/year.

What boilers need?

Annual combustion tune-up: adjust air/fuel ratio for efficiency + low emissions. Annual inspection: burner, heat exchanger, safety controls, relief valves. 5-year ultrasonic inspection (pressure vessels). Boiler water treatment: prevents scale buildup, corrosion. Blow-down valves, low-water cutoff testing. Steam boilers require more rigorous testing than hot-water.

Risks of skipping maintenance?

Efficiency loss: 5-15% fuel efficiency decline per year without tuning. Safety: carbon monoxide risk, explosion (rare but catastrophic). Boiler life: 15-25 years with good maintenance, 10-15 years without. Emergency repairs: $2-15k per event. Outages: tenant complaints, potential displacement costs. Insurance: boiler explosion rider may require proof of maintenance.

Owned vs vendor boiler?

Owned boiler: landlord capex + maintenance. Typical in larger multifamily (central plant). Owner pays: $3-15k annual maintenance, $50-300k capex every 20-25 years. Vendor-owned (boiler leasing): common in office/hotel. Landlord pays monthly fee $1-5k, vendor covers all maintenance + replacement. Simple cost but 20-30% more over long term. Consider: capex available, in-house expertise, risk tolerance.