⚠ Boiler down? Same-day emergency service — call 647-699-2474 now
Boiler Experts › Boiler Repair Newmarket

Boiler Repair
Newmarket, Ontario

Based right here in Newmarket, Mazgan Inc. is your local G1-licensed boiler specialist. When your boiler stops working in Stonehaven, Glenway, or anywhere across Newmarket, we're typically on-site within 1–2 hours. Navien and NTI certified, owner-operated, 20+ years experience.

G1 Licensed Navien Certified NTI Certified Same-Day Service Owner-Operated
📞 647-699-2474 Free Quote →
Local Boiler Service

Newmarket's Own Boiler Specialist

Mazgan Inc. is based at 128 Warwick Crescent, Newmarket — which means you're calling a neighbour, not a call centre. We know Newmarket's housing stock well: the older bungalows near Main St. with cast iron radiators, the 1990s builds in Armitage and Piper's Heath with mid-efficiency furnaces or early hydronic systems, and the newer custom homes in Stonehaven and Glenway with high-efficiency Navien combi boilers and multi-zone radiant heat.

Whether your Navien is showing an error code, your radiant floor zone won't heat, or your older boiler just won't fire, we diagnose it accurately and fix it right the first time. No subcontractors. No upselling. The owner shows up.

  • Boiler repair — no heat, ignition failure, lockout codes Details →
  • Combi boiler repair — no heat, no hot water, diverter valve Details →
  • Navien boiler repair — all error codes, certified technician Details →
  • Radiant floor heat — zone failure, pump, zone valve Details →
  • Glycol testing & flush — protect your heat exchanger Details →
  • Annual maintenance — combustion analysis, full inspection Details →
  • Boiler replacement — all brands, full installation

Neighbourhoods We Service in Newmarket

We cover every neighbourhood in Newmarket — from the waterfront trails area to the newer subdivisions expanding toward Green Lane.

StonehavenGlenwaySummerhill EstatesPiper's HeathArmitageRogers ReservoirWoodland HillHistoric DowntownBayview WellingtonLeslie Valley
👤
Owner Does the Work
No subs. The licensed tech who answers is the one who shows up.
⚡
Same-Day Response
No-heat calls get priority. We carry parts for same-visit repairs.
🔬
Navien & NTI Certified
Factory-trained — not just general HVAC experience.

Boiler Emergency in Newmarket?

Same-day response. G1 licensed. Parts on the truck. Call now and we'll give you an honest ETA.

📞 647-699-2474
FAQ — Newmarket Boiler Repair

Common Questions from Newmarket Homeowners

We're based in Newmarket, so response times are typically 1–2 hours for urgent calls anywhere in town. We prioritize no-heat calls and stock the most common parts — Navien ignitors and sensors, circulator pumps, zone valves — for same-visit repairs. Call us at 647-699-2474 for an honest ETA.
Yes — Navien is one of the most common boiler brands in Newmarket's newer builds, and we're factory-certified Navien service technicians. We diagnose Navien error codes (E003, E012, E110, E407 and more), carry Navien-specific parts, and follow Navien's service procedures for all repairs and annual maintenance.
Absolutely. Radiant floor heat is common in Newmarket's larger custom builds in Stonehaven and Glenway, and we specialize in it. Zone not heating, cold floor in one area, circulator pump failure, zone valve issues — we diagnose and repair all hydronic and radiant floor heating systems.
Yes — the older neighbourhoods near historic downtown Newmarket have original or early-replacement boilers, some with cast iron radiators. We service all ages and generations of gas boilers — from older standing pilot units to modern condensing boilers. If it's gas-fired and it heats your home, we work on it.
All of them — Navien, NTI, Viessmann, Weil-McLain, IBC, Slant/Fin, Burnham, Peerless, Triangle Tube, and any other residential gas boiler brand. For Navien and NTI specifically, we hold factory certifications.
Free Quote

Get a Quote for Boiler Repair in Newmarket

Fill out the form and we'll get back to you fast — usually within the hour during business hours. For emergencies, always call directly at 647-699-2474.

  • ✓ G1 Licensed — all gas boiler work in Ontario
  • ✓ Navien & NTI factory certified
  • ✓ All brands — Navien, NTI, Viessmann, Weil-McLain, IBC
  • ✓ Radiant floor, baseboard, combi, multi-zone
  • ✓ Upfront pricing — no surprises

Request Boiler Service

Free estimate — Newmarket, Ontario
✓ Got it! We'll be in touch shortly.
More Services

Boiler Services Available in Newmarket

🔥
Combi Boiler Repair
No heat, no hot water, diverter valve, pressure issues — all combi brands.
⚙️
Navien Boiler Repair
Factory-certified Navien service — error codes, sensors, heat exchangers.
🌡️
Radiant Heating Repair
Zone failures, circulator pumps, zone valves, glycol — all hydronic systems.
⚡
Ignition Failure Repair
Boiler won't fire? Lockout codes? Full ignition system diagnosis.
🧪
Glycol Testing & Flush
Protect your heat exchanger from corrosion — annual glycol service.
📋
Annual Maintenance
Full pre-season tune-up — combustion analysis, inspection, glycol test.