Every furnace call starts with a combustion and carbon monoxide safety check, not just a symptom fix.
Heat exchanger cracks, ignitor failures, and gas valve issues all fall within our scope.
Furnace failures carry a safety dimension — carbon monoxide and gas leaks — that most other hvac repairs don't, so the diagnostic has to start there, which is exactly why furnace repair calls in Windham, NH get treated with urgency, not a next-available-Tuesday slot.

Waiting rarely saves money and often turns a same-day repair into a longer, more involved job.
AAA Pro HVAC built its furnace repair process around one idea: diagnose first, quote honestly, fix it right.
We're licensed, insured, and staffed with techs who've spent years specifically on furnace repair, not general handyman work with an HVAC certificate bolted on.

Cracked heat exchangers get flagged immediately as a safety issue, not just a repair line item.
Our crews are trained on standing pilot, hot surface ignition, and electric resistance furnace systems alike.
Diagnosis happens first, and the quoted flat rate reflects the actual confirmed fault.
We understand a dead furnace in winter is a pipe-freezing risk, not just a comfort issue.
Every job starts with a real diagnosis, not a guess — here's the full scope of what our furnace repair technicians handle across Windham, NH.
Standing pilot systems get checked for thermocouple failure, the most common cause of a pilot that won't hold. This is one of the most requested furnace repair calls we get across Windham, NH.
A gas valve that won't open or won't seal is tested with proper manometer readings, not just listened to. Techs handling gas valve diagnostics carry the specific parts and tools this job calls for, not a generic kit.
We use a combustion analyzer and visual borescope inspection, not guesswork. This is one of the most requested furnace repair calls we get across Windham, NH.
A furnace that runs but never blows warm air often traces to a blower motor or limit switch fault. This is one of the most requested furnace repair calls we get across Windham, NH.
We inspect the full flue run, not just the connection at the furnace. This is one of the most requested furnace repair calls we get across Windham, NH.
We test low-voltage circuits before condemning the board. This is one of the most requested furnace repair calls we get across Windham, NH.

Tell us the symptom — no ignition, cold air, gas smell, or error code — and we route accordingly.
We confirm your Windham address and a realistic arrival window.
Flat-rate quote follows the confirmed fault, before repair begins.
Most ignition and control repairs finish same-visit.

Tech tested the ignitor's resistance right in front of me and swapped it in under thirty minutes.
Old furnace was blowing cold air even though the blower ran fine.
Shut the furnace down immediately for safety and walked me through the options.
Thermocouple was the culprit, replaced and tested before the tech left.

Usually a failing ignitor or a fouled flame sensor — both are testable with the right equipment rather than replaced blind.
We'll walk you through options including repair versus replacement honestly.
Could be a delayed ignition fault, a failed gas valve, or a limit switch issue — a full diagnostic narrows it down.
Electric resistance furnaces fail differently than gas units, and we diagnose accordingly.
Immediately — leave the area and call, don't attempt to diagnose it yourself.
Call dispatch for a live arrival estimate based on current demand.

Our furnace repair crews are positioned throughout Windham, NH to keep response times realistic, not just promised.
☎ Call +1-866-805-8548 for Windham Service