Residential Boiler Services | Repair & Install | Calgary, AB
Calgary's Boiler Repair & Installation Experts
Licensed technicians specializing in residential and commercial boiler systems. Same-day emergency repairs. Serving Calgary and surrounding areas.
Why Calgary Trusts DHL
Your Boiler Stopped Working in -30°C. Now What?
Calgary winters don't wait, and neither should your boiler repair. When your heating system fails, frozen pipes, property damage, and an unlivable home can follow within hours. DHL Mechanical responds to emergency boiler calls across Calgary with the parts, tools, and expertise to restore your heat the same day.
We don't send general HVAC technicians who dabble in boilers. Every technician on our team specializes in hydronic heating systems — from high-efficiency condensing units to legacy cast-iron boilers. That focus means faster diagnostics, accurate repairs, and systems that stay fixed.
Boiler-Only Focus
Not a furnace company that also "does boilers." Hydronic heating is all we do.
Same-Day Response
After-hours and weekend calls dispatched directly to a licensed technician.
Parts in Stock
Common parts for IBC, NTI, Viessmann and other major brands carried on our trucks.
Flat-Rate Pricing
You approve the price before work begins. No surprise charges, ever.
Boiler Services for Every Calgary Home & Business
From emergency repairs at 2 AM to planned high-efficiency installations, DHL Mechanical handles every aspect of boiler and hydronic heating service.
Boiler Repair
Diagnostics and repair for all residential and commercial boiler makes and models. We fix it right the first time.
Learn moreBoiler Installation
New high-efficiency boiler installations sized and configured for Calgary's extreme winters. Includes permits and commissioning.
Learn moreRadiant Floor Heating
In-floor hydronic heating design, installation, and repair. Even heat distribution with zero cold spots.
Learn moreCombi Boilers
Space-saving combination boilers that deliver hot water and heating from a single compact unit. Ideal for condos and smaller homes.
Learn moreCommercial Boiler Services
Scheduled maintenance, emergency repair, and system upgrades for commercial and multi-unit residential properties.
Learn moreTankless Water Heating
On-demand hot water systems that eliminate standby heat loss. Professional sizing ensures consistent performance year-round.
Learn moreBoiler Maintenance & Cleaning
Annual maintenance programs that protect your warranty, prevent breakdowns, and maintain peak efficiency through Calgary's long winters.
Learn morePool & Hot Tub Boilers
Repair and installation of swimming pool and hot tub heating boilers. Extend your swim season with reliable hydronic pool heating.
Learn moreEmergency Boiler Service
After-hours dispatch for heating emergencies. A licensed technician — not an answering service — takes your call. Available 365 days a year.
Call nowBoiler Brands We Service and Install in Calgary
Don't see your brand? We service all makes and models. Call us.
The Boiler Experts Calgary Calls First
DHL Mechanical isn't a general HVAC company that lists boilers as an afterthought. We built this company around one thing: keeping Calgary's hydronic heating systems running through the coldest months in Canada.
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Boiler specialists, not generalists Every technician is trained exclusively in boiler and radiant heating systems.
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Parts in stock, not on order Common parts for IBC, NTI, Viessmann, and other major brands are on our trucks.
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Upfront pricing, no surprises We quote the job before we start. The price you approve is the price you pay.
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Emergency response when it matters After-hours calls go directly to a technician, not a voicemail box.
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Full service — install to maintenance New installations, annual servicing, emergency repairs, and system upgrades.
"Called at 9 PM on a -35 night when our boiler quit. A technician was at our door within 90 minutes and had heat running before midnight. Absolute lifesavers."
— Calgary Homeowner, SE Calgary"DHL installed our new IBC boiler and radiant floor system. The difference in comfort is night and day. Professional crew, clean work, fair price."
— Calgary Homeowner, SW Calgary"Finally found a company that actually understands boilers. No more being told 'just replace it with a furnace.' They diagnosed and fixed the issue in under an hour."
— Calgary Homeowner, NW CalgaryBoiler Service Across Calgary & Surrounding Communities
DHL Mechanical serves residential and commercial clients throughout Calgary and the surrounding area with the same fast response times and expert boiler service.
Surrounding Communities: Airdrie, Cochrane, Okotoks, Chestermere, Langdon, Strathmore, High River, and Bragg Creek.
Boiler Questions? We've Got Answers.
The most common questions Calgary homeowners ask about boiler repair, installation, and maintenance.
Residential boiler replacement in Calgary typically ranges from $6,500 to $14,000+, depending on system type and installation complexity. A standard high-efficiency condensing combi boiler runs $7,500–$10,500, while a system boiler with an indirect tank for larger homes runs $9,000–$14,000+. Every DHL Mechanical quote includes the unit, removal of the old system, new venting, gas piping modifications, a magnetic filter, and all required permits.
Choose a combi boiler if you have a smaller home (under 2,000 sq. ft.) and rarely run two hot water fixtures simultaneously. Choose a system boiler with an indirect tank if you have a larger home, a soaker tub, or a busy family that showers at the same time. In Calgary, groundwater drops to near freezing in winter (approximately 3–4°C), making a stored tank the more reliable choice for high-demand households.
All major manufacturers — Viessmann, NTI, IBC — require annual maintenance to keep the warranty valid. In Calgary, annual servicing should include heat exchanger cleaning, condensate trap inspection, water pH testing for glycol systems (common in radiant floor setups), and a full combustion analysis. Skipping annual service is the single fastest way to void your warranty and shorten your boiler's lifespan.
Before calling for emergency service, check three things: (1) Go outside and inspect the white PVC exhaust vent for ice buildup — in extreme cold, steam freezes and blocks the exhaust; (2) Check the boiler pressure gauge, which should read 12–20 PSI; if it's near zero, use the filling loop to add water; (3) Check the condensate drain line for freezing, especially if it runs through a cold garage or outside. If the issue persists, call (403) 863-8246 for same-day emergency dispatch.
For Calgary's climate, we recommend IBC (Canadian-designed with excellent local support), Viessmann (premium stainless steel heat exchangers that resist hard water), and NTI (reliable mid-range units with readily available parts across Alberta). We generally advise against "budget" brands for primary heating in -30°C weather — the initial savings are often lost in the first emergency service call. The best brand for your home depends on your heating load, water demands, and budget, and we size every installation individually.
The federal Canada Greener Homes Grant is closed to new applicants, but the Canada Greener Homes Affordability Program remains available for low-to-median income households. Calgary homeowners can also access the Clean Energy Improvement Program (CEIP), which finances energy upgrades through property taxes at competitive interest rates with long repayment terms. Ask our team about current incentive options when we quote your project.
Yes. Calgary has hard water at approximately 11–15 grains per gallon. This causes scale buildup inside the heat exchanger, leading to "kettling" (banging noises), reduced efficiency, and premature failure. We install a scale inhibitor and magnetic dirt filter (such as Fernox or Adey MagnaClean) on the return line of every new installation. For existing systems, adding these components is one of the highest-ROI upgrades available to extend boiler lifespan significantly.
Ready to Fix Your Boiler or Upgrade Your Heating?
Whether it's an emergency repair at 2 AM or a planned high-efficiency boiler installation, DHL Mechanical is Calgary's go-to boiler specialist. Call us directly or request a free, no-obligation quote.
