Boiler Installation cost in Renton, WA
Renton homeowners typically pay $5,400 – $13,200 for boiler installation. Local labor and materials price 20% above the national average.
Renton average
$9,300
Typical low
$5,400
Typical high
$13,200
Per system
$5,400 – $13,200
Sample ZIP
98055
What drives Renton pricing
Local labor
Renton follows the King County labor market.
Permits & code
City permits with critical-areas review in some neighborhoods.
Climate & conditions
Rain and moss make maintenance a recurring cost.
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Estimated project cost
$10,925 – $15,010
Most homeowners pay around $12,968
Compare quality / material level
Cost by material in Renton
Installed Renton pricing per system.
| Option | Installed cost |
|---|---|
| Standard efficiency gas boiler | $5,750 – $7,900 |
| High-efficiency condensing boiler | $7,900 – $10,400 |
| Combi boiler with domestic hot water | $10,400 – $13,500 |
| Cast iron / high-capacity boiler | $13,500 – $18,600 |
Where the money goes in Renton
A typical $9,300 Renton project, broken down by line item.
- Labor0.45% · $42
- Materials0.38% · $35
- Permits & inspections0.05% · $5
- Overhead & profit0.12% · $11
Common add-ons
Extras that show up on Renton quotes but rarely in the headline price.
New circulator pumps
Chimney liner
Zone valves and controls
Old boiler removal
Ways to save in Renton
- Look for high-efficiency rebates from your gas utility.
- Replace in summer when boiler installers have open schedules.
- Collect three written bids on an identical scope — spreads of 20–40% are normal.
- Book in the off-season and stay flexible on the start date to save 5–15%.
- Bundle nearby work into one mobilization so you only pay setup and travel once.
- Ask what the contractor would change to cut 10% without hurting durability.
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