BoilerCosts2026-02-22
The Hidden Costs of a Cheap Boiler Install
Cut-rate installs often skip sizing, permits and commissioning — costing more long-term.
The cheapest boiler quote can become the most expensive. Here's what corners get cut.
What's skipped
Low quotes often skip heat-loss sizing, permits, proper venting, system flushing and full commissioning — leading to faults and voided warranties.
The real cost
Poor sizing causes short-cycling and breakdowns; skipped permits create resale and safety issues; the savings vanish quickly.
Key takeaways
- Insist on heat-loss sizing
- Permits and commissioning protect you
- System flushing prevents early faults
- Cheapest quote is rarely cheapest long-term
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