Cost to Boiler Replacement in Denver, CO

$6,496–$13,440 in Denver

12% above the national average · 1.12x cost multiplier

Expect to pay $6,496–$13,440 for a boiler replacement in Denver, about 12% above the national benchmark. The Mountain West region's contractor market and material costs account for most of this difference. The detailed breakdown below shows how budget, mid-range, and premium projects compare at Denver prices.

Cost Breakdown in Denver

Line Item	Low	Mid	High
Materials	$2,464	$5,040	$9,520
Labor	$2,016	$3,136	$4,480
Permits	$280	$392	$560
Total	$4,760+12% vs. national avg	$8,568+12% vs. national avg	$15,120+12% vs. national avg

Budget

Standard-efficiency gas boiler (80-85% AFUE), basic installation with existing connections

Mid-Range

High-efficiency condensing gas boiler (90-95% AFUE), new venting, updated controls

Premium

Top-tier condensing boiler (95%+ AFUE), zoned system with smart controls, new piping, indirect water heater

Material Options

Material prices below are national averages; availability in Denver may shift costs slightly.

Material	Cost/Unit	Pros	Cons	Best For
Standard Gas Boiler (80-85% AFUE)	$2,000-$4,000	Lowest upfront cost, simple installation, widely available parts	Higher fuel bills, less efficient, may not qualify for rebates	Budget-conscious replacements where the existing venting worksLowest upfront cost, simple installation, widely available parts
Condensing Gas Boiler (90-98% AFUE)	$3,500-$8,000	Lowest operating costs, qualifies for utility rebates, smaller footprint	Higher upfront cost, needs condensate drain, acidic condensate requires handling	Homeowners planning to stay 5+ years who want long-term savingsLowest operating costs, qualifies for utility rebates, smaller footprint
Oil Boiler	$3,000-$7,000	High heat output, works without gas line, reliable in cold climates	Requires oil tank and deliveries, higher maintenance, fuel price volatility	Rural homes without natural gas accessHigh heat output, works without gas line, reliable in cold climates
Electric Boiler	$1,500-$5,000	No combustion venting needed, compact, zero on-site emissions, quiet	High electricity costs in most markets, may need panel upgrade	Small homes, mild climates, or areas with cheap electricityNo combustion venting needed, compact, zero on-site emissions, quiet
Combi Boiler (Heat + Hot Water)	$3,000-$7,500	Eliminates separate water heater, saves space, on-demand hot water	Limited hot water flow for large homes, higher repair costs	Small to mid-size homes wanting to free up mechanical room spaceEliminates separate water heater, saves space, on-demand hot water

Other Projects in Denver

Full Kitchen Remodel

Full Bathroom Remodel

Basement Finishing

Back to national average for Boiler Replacement

Denver Estimate

Typical Range

$6,496–$13,440

vs. National Average

12% above national

Cost Multiplier

1.12x

Estimates apply Denver's 1.12x regional cost multiplier to national averages. Actual bids vary by contractor, project scope, and timing.

See national average costs →