How much does boiler installation cost?
Boiler Installation costs $4,500 to $11,000 for a typical project, averaging about $7,750. Installed pricing usually runs $4,500.00 to $11,000.00 per system, and scope, materials, access and local labor rates explain nearly all of the variation.
National average
$7,750
Typical low
$4,500
Typical high
$11,000
Per system
$4,500 – $11,000
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Estimated project cost
$10,499 – $14,394
Most homeowners pay around $12,446
Compare quality / material level
Cost by material
Installed pricing per system.
| Option | Installed cost |
|---|---|
| Standard efficiency gas boiler | $4,805 – $6,588 |
| High-efficiency condensing boiler | $6,588 – $8,680 |
| Combi boiler with domestic hot water | $8,680 – $11,238 |
| Cast iron / high-capacity boiler | $11,238 – $15,500 |
Boiler Installation cost by project size
Typical installed pricing before local adjustments.
| Project size | Budget | Average | Premium |
|---|---|---|---|
| 1 systems | $4,500 | $7,750 | $11,000 |
| 2 systems | $9,000 | $15,500 | $22,000 |
| 3 systems | $13,500 | $23,250 | $33,000 |
| 4 systems | $18,000 | $31,000 | $44,000 |
Boiler Installation cost by material or quality level
| Option | Price range | Best for |
|---|---|---|
| Standard efficiency gas boiler | $4,805.00 – $6,587.50 / system | Lowest upfront cost, shortest lifespan |
| High-efficiency condensing boiler | $6,587.50 – $8,680.00 / system | Best overall value for most homes |
| Combi boiler with domestic hot water | $8,680.00 – $11,237.50 / system | Longer warranty and better finish |
| Cast iron / high-capacity boiler | $11,237.50 – $15,500.00 / system | Top-tier materials and custom detailing |
Where the money goes
A typical project budget, broken down by line item.
- Labor0.45% · $35
- Materials0.38% · $29
- Permits & inspections0.05% · $4
- Overhead & profit0.12% · $9
Cost by region
Labor markets move the number more than any other single factor.
Northeast
$5,175 – $12,650
+15% vs. national average
West
$5,310 – $12,980
+18% vs. national average
Midwest
$4,320 – $10,560
-4% vs. national average
South
$4,230 – $10,340
-6% vs. national average
Common add-ons
Line items that show up on most quotes but rarely in the headline price.
New circulator pumps
Chimney liner
Zone valves and controls
Old boiler removal
DIY vs. hiring a pro
Hire a pro
$4,500 – $11,000
Do it yourself
$2,025 – $6,050
DIY saves labor but not materials, permits or rework. Only take it on if the job does not require a licensed trade or inspection.
Ways to save
Practical levers that lower the bill without cutting quality.
- 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.
Questions to ask your contractor
- 01Are you licensed and insured in my city, and can I see the certificate?
- 02Is this a fixed-price bid or an estimate that can change?
- 03What exactly is excluded from the quote?
- 04Who pulls the permit and who schedules inspections?
- 05What is the written workmanship warranty and how long does it last?
- 06What is the payment schedule, and how much is due up front?
- 07How long will the work take, and what could delay it?
Frequently asked questions
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Get free quotes from certified prosBoiler Installation cost by city
Local labor rates, permits and climate change the number. Pick your city for prices near you.
Boiler Installation cost in Los Angeles, CA
$5,580 – $13,640
Boiler Installation cost in San Diego, CA
$5,310 – $12,980
Boiler Installation cost in San Jose, CA
$6,210 – $15,180
Boiler Installation cost in San Francisco, CA
$6,525 – $15,950
Boiler Installation cost in Oakland, CA
$5,940 – $14,520
Boiler Installation cost in Sacramento, CA
$4,860 – $11,880
Boiler Installation cost in Fresno, CA
$4,410 – $10,780
Boiler Installation cost in Long Beach, CA
$5,490 – $13,420
Boiler Installation cost in Anaheim, CA
$5,400 – $13,200
Boiler Installation cost in Santa Ana, CA
$5,355 – $13,090
Boiler Installation cost in Irvine, CA
$5,670 – $13,860
Boiler Installation cost in Riverside, CA
$4,770 – $11,660
Boiler Installation cost in San Bernardino, CA
$4,635 – $11,330
Boiler Installation cost in Bakersfield, CA
$4,365 – $10,670
Boiler Installation cost in Stockton, CA
$4,590 – $11,220
Boiler Installation cost in Modesto, CA
$4,500 – $11,000
Boiler Installation cost in Chula Vista, CA
$5,175 – $12,650
Boiler Installation cost in Fremont, CA
$6,075 – $14,850
Boiler Installation cost in Pasadena, CA
$5,760 – $14,080
Boiler Installation cost in Glendale, CA
$5,625 – $13,750
Boiler Installation cost in Santa Clarita, CA
$5,220 – $12,760
Boiler Installation cost in Torrance, CA
$5,535 – $13,530
Boiler Installation cost in Oxnard, CA
$5,130 – $12,540
Boiler Installation cost in San Mateo, CA
$6,300 – $15,400