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Boiler Repair in Calgary — 24/7 Emergency Service

Licensed boiler repair across all Calgary quadrants. All major brands serviced. Repairs from $129 + parts with upfront pricing — no hidden fees.

Technician repairing using a drill machine
4.9
220+ Google Reviews
30+ Years
Serving Calgary since 1995
Certified Technicians
Red Seal & Gas Fitting Licensed
24/7
Emergency Response
What We Fix

Our Boiler Repair Services in Calgary

Comfort Union repairs all types of residential boilers across Calgary — from older hydronic heating systems to modern high-efficiency condensing units. Our licensed technicians diagnose the root cause accurately so you’re not paying for guesswork.

When your boiler stops producing heat or hot water, the cause is often a failed ignition system, faulty thermostat, or circulator pump failure. We diagnose fast and restore comfort the same day in most cases.

A leaking boiler or pressure that keeps dropping signals a failed pressure relief valve, corroded pipe joint, or expansion tank issue. We locate and seal the source correctly — not just patch it temporarily.

If your boiler won’t ignite or keeps shutting down on a fault code, the cause is typically a faulty igniter, dirty flame sensor, or gas valve issue. Our techs carry common ignition components on the van.

Banging, whistling, or persistent gurgling usually indicates trapped air in the system, limescale buildup in the heat exchanger, or a failing pump. We bleed, flush, or replace components as needed.

For hydronic heating systems, failed zone valves mean uneven heat across zones, while a seized circulator pump leaves your system unable to distribute heat. We service radiant in-floor and baseboard hydronic systems.

Annual boiler service in Calgary extends system life and prevents emergency breakdowns. We inspect combustion efficiency, check pressure, clean the heat exchanger, and verify all safety controls — keeping your boiler running at peak performance all winter.

Available 24 Hours, 7 Days a Week

Emergency Boiler Repair in Calgary — Same-Day Service

When Calgary temperatures drop below –30°C, a broken boiler is more than an inconvenience — it’s a safety risk. Comfort Union offers 24/7 emergency boiler repair across all Calgary quadrants. When you call, we dispatch a licensed technician fast — often the same day.

All Makes & Models

We Repair All Major Boiler Brands in Calgary

Our boiler repair technicians are trained and experienced with all major residential boiler brands found in Calgary homes. We carry brand-specific parts on the van and can diagnose error codes on-site.

ibc logo

IBC Boiler

As an authorized IBC installer, Comfort Union has deep hands-on experience with IBC SFT and SFC series boilers. We stock common IBC-specific parts and can diagnose IBC error codes on-site without waiting for a service bulletin. Whether it's a heat exchanger alert or a pressure fault, we know these systems inside and out.

Navien Brand logo

Navien Boilers

Navien NCB-H combi-boilers and NHB heating-only systems are among the most common we service in Calgary. Our technicians are trained on Navien diagnostic systems and error code troubleshooting — E003, E012, E016 and others. We carry Navien ignition components, sensors, and circulation parts on the van.

viessmann logo

Viessmann Boilers

Many Calgary homes still operate Viessmann Vitodens and older Vitogas models. We service both current high-efficiency condensing models and legacy units where parts remain available. When repair frequency increases on aging Viessmann systems, we provide an honest cost-benefit analysis on repair vs. replacement.

nti

NTI Boilers

NTI Trinity and TFT series boilers are popular in Calgary hydronic and radiant in-floor systems. We carry common NTI parts and provide genuine repair vs. replacement assessments — particularly for aging TFT units where repairs may no longer be cost-effective.

Bosch Logo

Bosch / Buderus

Bosch and Buderus boilers appear in many older Calgary homes. Our technicians are experienced with these European systems and their specific wiring and venting configurations. We service Bosch Greenstar and Buderus GB series units.

Bradford White Brand Logo

Bradford White & Others

We also service Bradford White combination systems, older Weil-McLain units, and most other residential boiler brands found in Calgary homes. If you're unsure whether we service your brand, call us — chances are we do and we'll tell you upfront.

Transparent Pricing

Boiler Repair Cost in Calgary

We believe you should know what a repair will cost before we start. Comfort Union provides upfront pricing on-site after diagnosis — no hidden fees, no pressure.

Repair Type Typical Range (incl. parts)
Diagnostic / Service Call From $129
Pressure Issue / System Bleeding $129 – $250
Ignition System / Flame Sensor $150 – $350
Zone Valve Replacement $250 – $500
Circulator Pump Replacement $300 – $600
Expansion Tank Replacement $200 – $400
Gas Valve or Control Board $350 – $700+
Heat Exchanger Assessment Quote required on-site
Prices are estimates for Calgary residential boiler repairs and may vary based on system age, parts availability, and complexity. All pricing confirmed before work begins. GST additional.
Honest Advice

Should You Repair or Replace Your Boiler?

Not every boiler problem means you need a new system. We give you a straight answer based on your boiler’s actual condition — not what earns us more money.

Repair Makes Sense When…

Replacement Makes Sense When…

Not sure which way to go? 

If your assessment leans toward replacement, we can discuss your options. View our boiler installation page for pricing, brands, and what to expect from a new system installation in Calgary.

How It Works

What to Expect from a Comfort Union Boiler Repair

No surprises, no confusion. Here’s exactly what happens from the moment you call our Calgary boiler repair team.

Call or Book — Same-Day Dispatch Available

Call (403) 399-7903 anytime — including evenings and weekends. For emergency boiler repairs in Calgary, we prioritize same-day dispatch. You'll receive a confirmed appointment window and a call when the technician is en route.

On-Site Diagnosis by a Licensed Technician

Our Red Seal certified technician inspects your boiler system thoroughly: pressure levels, combustion performance, gas connections, venting, circulator pump, zone valves, and electronic controls. We check for error codes and run the system through a diagnostic sequence.

Upfront Pricing — You Approve Before We Start

We explain exactly what's wrong, what caused it, and what it will cost to fix. You approve the repair before we touch anything. No hidden charges, no add-ons. If the repair cost raises questions, we discuss the repair vs. replacement picture honestly.

Repair Completed + Full System Test

We complete the repair using quality parts — genuine OEM where available. After the repair, we run a full system test including pressure check, combustion verification, and zone function testing. We don't leave until your boiler is heating properly and safely.

Why Choose Us

Why Calgary Homeowners Choose Comfort Union

No surprises, no confusion. Here’s exactly what happens from the moment you call our Calgary boiler repair team.

Local Calgary Expertise Since 1995

Comfort Union has been repairing boilers in Calgary homes for 30 years. We understand how Calgary's climate — from –40°C winters to spring pressure swings — affects hydronic heating systems and what Calgary homeowners actually need.

Red Seal Certified Technicians

Every boiler repair is performed by technicians holding Red Seal HVAC/R certification and Gas Fitting tickets. All work meets Alberta TSSA safety codes. We're licensed — and we can prove it.

4.9★ — 220+ Google Reviews

Over 500 Calgary families have trusted Comfort Union with their home heating. Our reviews consistently highlight honest communication, technical knowledge, and not being pushed into unnecessary purchases. Read them on Google.

Frequently Asked Questions

Boiler Repair FAQ

Questions Calgary homeowners ask us most often about boiler repairs, costs, and service.

Most boiler repairs in Calgary range from $129 to $600+ depending on the fault type and parts required. A service call and diagnosis starts from $129. Common repairs like ignition issues or pressure problems typically fall in the $150–$350 range, while major component replacements like a circulator pump run $300–$600+. We provide upfront pricing on-site after diagnosis — so there are no surprise charges.

Comfort Union offers 24/7 emergency boiler repair in Calgary. For urgent situations — no heat during a cold snap, major leaks, or a complete system shutdown — we aim to dispatch a licensed technician the same day. Call (403) 399-7903 anytime, including evenings and weekends.

Yes. We service IBC, Navien, Viessmann, NTI, Bosch, Bradford White, and most other residential boiler brands found in Calgary homes. Our technicians are trained on multiple systems and carry common parts on the service van — completing most repairs in a single visit.

If your boiler is under 15 years old and the repair cost is less than 40–50% of a new system, repair usually makes financial sense. Frequent breakdowns, a cracked heat exchanger, or a system over 20 years old typically signals that replacement is the smarter long-term choice. Comfort Union provides honest assessments — if replacement makes more sense, we’ll tell you clearly rather than keep billing you for repairs.

Comfort Union serves all four Calgary quadrants — NW, NE, SW, and SE. We also service nearby communities including Springbank and Bearspaw, AB. We do not service Airdrie, Cochrane, Chestermere, or Okotoks.

Yes. Annual boiler maintenance is the best way to prevent emergency breakdowns, maintain heating efficiency, and extend system life. A Comfort Union boiler service includes combustion testing, heat exchanger inspection, pressure verification, venting checks, and safety control testing. Book your annual service before the heating season starts

Real Customer Reviews

Real Reviews from Real Calgary Homes

4.9 star Google rating — Comfort Union Calgary
Shanaz
Shanaz L
Verified Google review

Comfort Union did an excellent job repairing our boiler. It stopped working in the middle of a cold day, and they responded quickly. The technician was knowledgeable, diagnosed the issue right away, and had everything running smoothly again. Truly reliable service!

Dec 2025
Harris
Harris R
Verified Google review

Very impressed with Comfort Union’s boiler repair service. They arrived on time, explained the problem in simple terms, and completed the repair efficiently. No hidden costs, just honest and professional work. Highly recommended!

Jan 2025
Abdul
Abdul J
Verified Google review

Our boiler had been acting up for weeks, and Comfort Union finally fixed it properly. The team was friendly, professional, and took the time to ensure everything was working perfectly before leaving. Great service and great experience overall.

Oct 2025
Service Areas

Boiler Repair Service Across All of Calgary

Boiler Repair NW Calgary

Tuscany, Royal Oak, Scenic Acres, Hawkwood, Edgemont, Varsity, Dalhousie, Montgomery, Bowness and all NW communities.

Boiler Repair NE Calgary

Skyview Ranch, Saddle Ridge, Martindale, Taradale, Temple, Pineridge, Rundle, Marlborough and all NE communities.

Boiler Repair SW Calgary

Signal Hill, West Springs, Aspen Woods, Cougar Ridge, Springbank Hill, Pump Hill, Lakeview, Glamorgan and all SW communities.

Boiler Repair SE Calgary

Auburn Bay, Mahogany, Cranston, McKenzie Towne, Copperfield, New Brighton, Douglasdale, Riverbend and all SE communities.

Boiler Not Working? Call Calgary's Trusted Repair Team.

(403) 399 - 7903

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