Every service starts with a safety-first diagnosis. Here's how we help you restore comfort — clearly, and without guesswork.
Furnace Repair
We diagnose no-heat calls, ignition faults, airflow problems, and winter safety issues — starting with the checks that keep your family safe.
AC Repair
Weak cooling, frozen coils, airflow restrictions, and moisture problems solved by measuring real performance, not assumptions.
Heat Pump Service
We inspect heating and cooling performance, controls, and defrost-related issues so your system works in every season.
Ductless Mini-Splits
Troubleshoot room-by-room comfort issues, controls, and refrigerant performance on ductless systems.
Maintenance & Tune-Ups
Catch worn components early and reduce the chance of a seasonal breakdown when you need the system most.
Thermostat Service
We test the full control path so you know whether the issue is the thermostat or the equipment behind it.
Every service, in depth
What each service actually covers
For every system, we start with the safety-critical checks, measure real performance, and explain the most likely root cause before any repair begins.
Furnace Repair
When a furnace fails in an Inland Northwest winter, it stops being an inconvenience and becomes a safety issue fast. We trace no-heat calls, ignition faults, and safety shutdowns back to the real source — and inspect safety-critical combustion components on every visit.
What we check
Heating failure diagnosis — no-heat, ignition faults, and lockouts
Heat exchanger inspection and combustion safety
Gas valve, ignitor, and flame sensor service
Blower motor, capacitor, and airflow troubleshooting
Common calls we see
No heatWon't turn onBurning or gas smellYellow burner flameHot & cold roomsHigh energy bills
AC Repair
Weak cooling, frozen coils, airflow restrictions, and moisture problems get solved by measuring actual performance — not by guessing. We identify the root cause before recommending any repair so the same issue doesn't come back.
What we check
Cooling failure, refrigerant, and electrical fault diagnosis
Airflow and coil performance testing
Compressor, capacitor, and condenser checks
Full condensate drain path and thermostat review
Common calls we see
Weak or warm airLow or no airflowShort cyclingLoud noisesWater or ice at the unitBad smells
Heat Pump Service
A heat pump heats and cools with the same equipment, so a winter complaint and a summer complaint can trace back to the same control, airflow, or outdoor-unit issue. We confirm the operating mode first, then test the system the way it's actually being used.
What we check
Heating and cooling performance in the active mode
Controls and thermostat setup
Defrost-related issues at the outdoor unit
Airflow and refrigerant performance
Common calls we see
Weak heating or coolingFrost & ice / defrostBackup heat runs too oftenThermostat / setup issues
Ductless Mini-Splits
Mini-splits are built for room-by-room comfort, so the problem usually shows up as one zone that feels off while the rest of the home seems fine. We follow the room, the indoor head, and the outdoor unit together so the fix matches the actual complaint.
What we check
Room-by-room comfort and zone balancing
Indoor head airflow and filter condition
Remote and wall-control signal and settings
Drainage and refrigerant performance
Common calls we see
One room too warm/coolWater or drainageRemote / control issuesUnits out of sync
Maintenance & Tune-Ups
A tune-up is a checkup, not a sales pitch. We look for friction, dirt, loosened connections, and operating changes that are easy to miss until they become a breakdown — so you have a clearer read on the system before the season changes.
A thermostat issue can look like an equipment failure from the outside. Blank displays, short cycling, or a system that won't settle can point to the thermostat, the wiring, the setup, or the equipment. We test the whole control path before making a recommendation.
What we check
Blank screen and no-response diagnosis
Compatibility and wiring
Setup and calibration
Scheduling, comfort control, and smart-thermostat fit
Common calls we see
Blank screen / no responseNever reaches target tempShort cyclingSmart-thermostat compatibility
Decision guide
Repair or replace?
The right decision starts with the real cause. We diagnose first, then show you the reasoning — safety, repeat failures, and total ownership cost matter more than guesswork or age alone.
Signals that point toward repair
The issue is isolatedOne failed component doesn't automatically mean the whole system is declining.
The system is still operating safelyIf the safety checks pass, repair usually stays on the table.
Major failures are not repeatingA short repair history points toward fixing the current issue instead of replacing early.
Signals that point toward replacement
Safety-related failures are presentCracked components or combustion concerns change the conversation fast.
Core parts are failing repeatedlyWhen the same major systems keep failing, repair costs and downtime stack up.
Ownership cost keeps climbingRepeated repairs, performance loss, and higher utility bills can make replacement the cleaner path.
Symptom guide
Not sure what's wrong? Start with the symptom.
Match what your system is doing to the problems we see most often. Anything that feels urgent or safety-related — gas odor, a yellow burner flame, fast-dropping comfort — is a reason to call right away.
Heating symptoms
Most heating calls trace back to ignition, airflow, controls, or a safety-critical combustion issue.
No heatFurnace won't turn onBurning or gas smellYellow burner flameHot & cold roomsSudden high energy bills
Cooling symptoms
Cooling complaints usually point to refrigerant, airflow, a coil restriction, or the condensate drain path.
Weak or warm airLow or no airflowShort cyclingLoud noisesWater or ice around unitBad smells from vents
A full safety-first diagnosis before any work begins. The fee covers the technician's time, travel, and a complete system evaluation — with no surprise charges and no pressure to approve work on the spot.
$220
• Airflow testing
Measure actual airflow instead of assuming the restriction is obvious.
• Performance checks
Confirm how the system is operating before recommending parts.
• Root-cause review
Trace the failure back to the real cause so the issue doesn't return.
• Options before work
Review the practical paths forward with no surprise charges.
Good to know
Frequently asked questions
How much does a service call cost?
Every visit starts with a $220 diagnostic that covers the technician's time, travel, and a complete safety-first system evaluation. You get a clear explanation of what we found before any repair work begins. If a repair is needed, it's quoted separately after the diagnosis — no hidden fees and no pressure to approve work on the spot.
What areas do you serve?
We serve homeowners on both sides of the state line — Spokane County in Washington and Kootenai, Bonner, and Shoshone Counties in North Idaho. See our Service Areas page for the full city list.
Do you offer emergency service?
Yes. We offer 24/7 emergency service — call any time for urgent heating or cooling issues. If a problem feels urgent or safety-related, such as a gas odor or comfort dropping fast in harsh weather, calling is the fastest option.
Do heat pumps really work in cold Idaho and Eastern Washington winters?
Modern heat pumps are designed to perform in cold climates. At very low temperatures, the system may rely on auxiliary or backup heat to maintain comfort. During a diagnostic visit, we check both heating and cooling modes so the system is ready for the conditions it will actually face.
Can a thermostat problem look like an equipment failure?
Yes. Heating and cooling systems depend on a correct control signal. If the thermostat setup or wiring is wrong, the system can behave like the equipment is failing even when the root problem starts at the controls. That's why we test the full control path before recommending a larger repair.
Are you licensed and insured?
Yes — CDA Heating & Cooling is licensed, bonded, and insured in both Idaho and Washington, with 20+ years of HVAC experience across residential and commercial systems. Owner Eddie Proulx personally oversees diagnostic quality.
Not sure what's wrong?
That's exactly what the diagnostic is for. Call and we'll find the root cause and explain your options in plain language.
