Navien high-efficiency wall-hung boiler installed by FlameTech
5-star Google rated

Calgary Boilers — Expert Installation, Repair & Service

5.0· 94 Google reviewsRed SealAlberta LicensedBBB Accredited

When the Calgary chill sets in, a reliable and efficient boiler is essential for keeping your home or business comfortable. FlameTech handles the full lifecycle: boiler installation, boiler repair, and annual boiler service — one team, one number, every part of the job.

Whether you're upgrading an aging cast iron boiler in a Mount Royal heritage home or specifying a new condensing system for a Cranston build, we handle every part of the job — heat-loss calc, gas + venting + condensate, install, commissioning, and warranty registration.

Locally owned and operated. Alberta-licensed gas fitters and Red Seal plumbers on every job. We install Navien, IBC, Viessmann, and Triangle Tube — registered with manufacturer warranties. Also serving boilers in Airdrie and boiler installation Airdrie.

Calgary's Boiler Specialists
15-25yr
Boiler lifespan
5.0★
Google rated
98%
Max AFUE
Red Seal
Plumbers + gas fitters

Boiler down in a cold snap, kettling, or losing pressure? Call 587-834-3668 — priority dispatch with parts on the truck.

Call 587-834-3668
via Google

My boiler stopped working at my house. Service was very timely (same day service), professional, and well priced. I’d highly recommend FlameTech

Michael Ciaramella — verified Google review for FlameTech

Michael Ciaramella

Calgary · 8 months ago

Why Choose FlameTech for Calgary Boilers

Boilers aren't a swap-and-go appliance — sized wrong or vented wrong, they cost you for the next 20 years. We've installed and serviced a lot of boilers across Calgary, from old cast iron units in heritage homes to modern condensing combis in new builds.

Local Calgary Experts

Our technicians live and work in Calgary. We know how Alberta's climate, hard water, and freeze-thaw cycles affect boiler systems — and we install accordingly.

Licensed & Insured

Alberta-licensed gas fitters and Red Seal plumbers on every job, plus current insurance. Permits pulled, inspections passed, work warrantied.

Every major brand

We work on every major boiler brand sold in Calgary — install, troubleshooting, and warranty paperwork done to manufacturer spec.

Emergency Response

Real person answers the phone, priority dispatch for no-heat calls, and common parts stocked on every truck so most repairs finish in a single visit.

Types of Boilers We Install & Service

High-Efficiency Condensing Boilers

Modern condensing technology recovers heat from exhaust gases that conventional boilers waste, achieving up to 98% AFUE. Big savings during Calgary's seven-month heating season.

Conventional Boilers

Traditional atmospheric and power-vent boilers remain a practical choice for many Calgary homes — proven, simple, and cost-effective when condensing isn't a fit.

Combi Boilers

Combination units deliver radiant heating and endless domestic hot water from a single compact appliance. Space-efficient — no separate water heater needed.

Hydronic + Radiant Floor

We design and install hydronic systems including in-floor radiant — the most comfortable heat available, and quiet enough you forget it's running.

Trusted Boiler Brands We Install

Navien

Industry-leading efficiency — Navien condensing boilers reach 95%+ AFUE with stainless steel heat exchangers that resist Calgary's mineral-heavy water. Wall-hung designs save mechanical room space and start dependably even at −35°C.

IBC Technologies

Canadian-engineered boilers built specifically for prairie climates. Premium-grade materials selected to handle Alberta's challenging water chemistry and seasonal temperature swings. Properly maintained IBC systems routinely deliver 20-25 years.

Viessmann

Premium German engineering with stainless steel heat exchangers and modulating burners. The systems we recommend when budget allows for the best long-term efficiency and longevity.

Triangle Tube

American-made stainless steel construction with industry-leading warranties. Particularly strong on combi and indirect-tank pairings for whole-home heating + DHW.

Why Boilers Are a Smart Choice for Calgary Homes

  • 01Energy efficiency — high-efficiency models can save 20-40% on heating bills compared to old atmospheric units.
  • 02Reliable, even heat through Calgary's coldest cold snaps with no temperature stratification or cold spots.
  • 03Whisper-quiet operation — no blower noise, no air rush. Most homeowners forget the system is running.
  • 04Better for allergies — no forced air means no recirculating dust, dander, or pollen.
  • 05Excellent for zoning — heat only the rooms you're using, with multi-zone valves and individual thermostats.
  • 06Long lifespan with proper maintenance — 20-25 years on premium units vs. 15-20 for forced-air furnaces.

Frequently Asked Questions About Calgary Boilers

How much does a new boiler cost in Calgary?

Installation typically ranges from $8,000 to $15,000 depending on unit size, efficiency rating, and any required gas line, venting, or condensate work. Combi boilers and hydronic conversions sit at the higher end. Financing is available through Financeit with flexible monthly payments — we provide a written quote with all-in pricing before any work starts.

What size boiler do I need for my Calgary home?

Sizing depends on square footage, insulation quality, window quality, ceiling heights, and Calgary's −35°C design temperature. We perform a Manual J heat-loss calculation on every install instead of matching the old unit's BTU — old units were often oversized and cost you in efficiency for decades.

How do I know if my boiler needs repair?

Watch for kettling, whistling, or gurgling noises (limescale + air), pressure dropping below 12 PSI, visible water seepage near components, inconsistent room-to-room heating, frequent cycling, climbing gas bills, or display error codes. Yellow burner flames instead of blue indicate dangerous combustion issues — shut the unit down and call us.

When is it time to replace rather than repair?

Replacement makes sense once a boiler reaches 15-20+ years, when repair costs exceed half the replacement value, when AFUE is below 80% (modern units run 95%+), or when visible rust, corrosion, or heat exchanger cracks are present. We'll give you an honest comparison with the numbers — not a sales pitch.

How often should I schedule boiler maintenance?

Once a year, in late summer or early fall before heating season. A real annual service includes heat exchanger inspection + flush, combustion analysis with a calibrated analyzer, safety control checks (pressure relief, low-water cutoff, flame sensor), and gas leak testing on connections.

Are there rebates for high-efficiency boilers in Alberta?

Federal and provincial programs periodically offer incentives — the Canada Greener Homes Grant has historically provided up to $5,000 for qualifying heating upgrades. Eligibility usually requires 95%+ AFUE and professional installation with documentation. Our team stays current on what's available and helps with applications.

What's the difference between a boiler and a water heater?

Boilers heat water that circulates through radiators, baseboards, or in-floor tubing to warm your living spaces — a closed loop. Water heaters provide potable hot water for showers, dishes, and laundry. Combi boilers do both functions from one unit.

Why is my boiler losing pressure?

Persistent pressure loss usually means small leaks at pipe joints, radiator valves, or connections that may not be visible. Other causes: defective pressure relief valves, failed expansion tanks, malfunctioning automatic fill valves, or excessive bleeding from radiators. Rapid pressure drops or pooling water needs immediate professional attention.

Can I convert from forced air to a boiler system?

Yes, but it's a substantial investment — typically $15,000-$30,000 depending on home size and chosen heat distribution (radiators, baseboards, or in-floor radiant). Most Calgary homeowners pursue conversions during major renovations to gain zone control, eliminate allergen circulation, and enjoy quieter, more luxurious heat.

Financeit

Monthly Financing Available

Spread the cost into manageable monthly payments.

Spread the cost of a new boiler into flexible monthly payments via our Financeit partner.

See details
How we work

Simple, honest, on your schedule.

01

Call or request a quote

Tell us what's going on. We listen first and ask the right questions before we schedule anything.

02

Free written estimate

We assess the job and give you an all-in price in writing. No pressure, no surprise add-ons.

03

Schedule at your convenience

Pick a day and window that works for your home — we'll confirm dispatch and arrival time.

04

Clean, code-compliant service

Licensed technicians complete the work to Alberta code, clean up, and walk you through what we did.

Service Area

Where we cover Calgary.

Same-day dispatch across Calgary and Airdrie. Find your neighbourhood for area-specific notes on common builds, hard-water patterns, and the systems we see most.

Request Service

Get a free boiler quote.

Tell us what's going on and our dispatch team will call you back with pricing and availability.

Real person calls back within 1 hourWe never share or sell your info

Or call 587-834-3668 for immediate service

Ready when you are

Book a Red Seal plumber in Calgary.

Free estimates, upfront pricing, and a satisfaction guarantee — local technicians who treat your home like their own.

Free estimate · No service charge for quotes · BBB Accredited