HVAC · Seattle, WA

HVAC Repair Costs

Heating, cooling, and ventilation equipment. Estimates below are localized to labor and material rates in the Seattle, WA area (zip prefix 981). Enter your exact zip to refine.

Showing local estimates for Seattle, WA (98101)

Major$4,561 – $13,683

Boiler - end of life

Replace boiler

Major$4,561 – $11,403

Heat pump - end of life

Replace heat pump

Major$3,421 – $9,122

Furnace - end of life

Replace furnace

Major$3,421 – $9,122

Furnace - cracked heat exchanger

Replace furnace (not repairable)

Major$2,851 – $7,982

AC condenser - end of life

Replace AC condenser unit

Moderate$242 – $1,819

Ductwork leaking/disconnected

Seal or reconnect ductwork

Moderate$182 – $1,819

AC not cooling properly

Diagnose and repair (refrigerant/coil/etc.)

Minor$231 – $1,153

Ductwork not insulated (in uncond. space)

Insulate accessible ductwork

Major$242 – $970

Flue/vent pipe improper installation

Correct flue pipe installation

Minor$115 – $576

Baseboard heater damage/not working

Repair or replace baseboard heaters

Moderate$120 – $600

Combustion air supply inadequate

Add combustion air vent

Minor$120 – $480

Fireplace damper not working

Repair or replace fireplace damper

Minor$124 – $371

Gas fireplace - service needed

Professional gas fireplace service

Minor$57 – $342

Thermostat not working properly

Replace thermostat

Major$93 – $371

Gas line not capped/improper connection

Cap or repair gas line

Minor$61 – $306

Condensate drain line clogged/missing

Clear or install condensate drain

Minor$30 – $120

AC refrigerant line insulation missing

Re-insulate refrigerant lines

Minor$6 – $33

Furnace - dirty/clogged filter

Replace furnace filter

About These Estimates

These estimates are based on national averages adjusted for local labor and material costs using BLS and BEA data. Actual costs vary based on specific conditions, contractor availability, and project complexity. Always obtain multiple quotes from licensed local contractors.