Boiler Replacement Cost Calculator
2026 U.S. boiler replacement planning ranges scale with unit count and type (atmospheric, condensing, combi). Venting, radiators vs hydronic distribution, and gas/electrical upgrades often dominate change orders; this generic model is a planning band only until a dedicated hydronic engine ships. Hydronic boiler swap for homes with radiators or radiant floors. Modeled ranges cover equipment and standard changeout, not full piping redesign.
Estimated boiler replacement cost cost
Enter your project details and calculate to see a planning estimate.
This is a planning estimate, not a contractor quote. Actual costs vary by location, home condition, material availability, permits, and project complexity.
Planning rates for cost year 2026 (national baselines × state regional factors). Not a contractor quote.
National planning ranges
| Item | Low | Typical | High |
|---|---|---|---|
| Boiler Replacement (national planning range)per unit | $4,500 | $8,500 | $14,000 |
About this project
Hydronic boiler swap for homes with radiators or radiant floors. Modeled ranges cover equipment and standard changeout, not full piping redesign.
Browse more in Heating & Cooling.
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Frequently asked questions
How should I use this estimate?
- Treat the result as a planning range, not a contractor quote. Collect multiple written bids with matching scope before committing.
What does this estimate include?
- The model applies 2026 U.S. national planning baselines with regional and complexity adjustments. Treat it as a budget range, then compare written bids.
Why can two bids differ so much from this range?
- Access, material tier, permits, hidden damage, and labor markets move totals. Use the calculator to set a budget band, then compare like-for-like written scopes.
Methodology & estimate disclaimer
2026 U.S. boiler replacement planning ranges scale with unit count and type (atmospheric, condensing, combi). Venting, radiators vs hydronic distribution, and gas/electrical upgrades often dominate change orders; this generic model is a planning band only until a dedicated hydronic engine ships.
Actual costs vary by location, home condition, material availability, permits, and project complexity. Read our methodology, the national cost bands table, editorial policy, and disclaimer. Planning provenance uses the internal model and, where listed, public datasets for context—not invented third-party bid averages.
Planning sources
- Home Cost Atlas national planning model v1 (version: v1) — Modeled national planning ranges used for cost guides and seed CostRecords. Values are planning estimates synthesized for budgeting context, not observed contractor invoices or bid samples.
- Home Cost Atlas planning baselines v1 (version: v1) — Internal baseline spreads (low / typical / high) by project category. Intended for calculator scaffolds and aggregation fallbacks; not a dataset of paid jobs.
- EIA Residential Energy Consumption Survey (RECS) / residential energy data (version: RECS / residential energy public tables) — Equipment stock and energy-use context for HVAC and envelope planning scopes. Does not provide contractor install invoices.
- DOE Energy Saver — home heating systems — System types and efficiency context for HVAC / heat-pump planning.
Public datasets supply labor and market context for the planning model. They are not aggregated contractor invoices or bid samples.
Cost year: 2026 rate book · Data version: hca-national-model-v1+cluster-context-2026 · Last reviewed: July 24, 2026