Tankless water heaters are great when they’re maintained and set up correctly — but when something is off, you’ll notice: error codes, temperature swings, low flow, ignition issues, or a unit that shuts down mid-use. Tankless problems can be mechanical, electrical, gas-supply related, or water-side (scaling and restriction).
Peak Comfort HVAC provides tankless water heater repair across Ottawa and surrounding areas. We diagnose venting, gas supply, ignition sequence, sensors, and performance under real demand — not just “does it turn on.” We also look for water-side issues that cause nuisance faults and inconsistent temperature.
You’ll get a clear explanation of what failed, why it’s happening, and what the proper fix looks like.

Email: info@peakcomfort.ca
275 Montfort St
Ottawa, ON K1L 5N8
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• Real performance diagnosis: We check operation under load, not just at idle.
• Gas + venting + sensors: We troubleshoot the full system: ignition, venting, supply, and control logic.
• No band-aids: We don’t “reset and leave.” If a fault keeps happening, we find the reason.
• Clear options: Plain-English explanation and upfront pricing before work starts.
• Verified hot water: We confirm stable temperature and reliable operation after the repair.
What to expect:
Step 1 — Diagnose: Confirm whether the issue is gas, venting, sensor/control, or water-side.
Step 2 — Explain & quote: Clear options and pricing before work starts.
Step 3 — Repair & verify: Repair, then verify stable temperature and proper operation.

Email: info@peakcomfort.ca
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