How long does boiler replacement take?

Timeline depends on boiler size, number of units, and whether piping modifications are needed. Typical single-boiler replacements take 1-2 weeks. Multi-boiler plant replacements may take 4-8 weeks when staged to maintain heat during the project.

What are the benefits of a high-efficiency boiler?

Modern condensing boilers achieve 90-98% efficiency compared to 75-85% for older atmospheric units. This translates to 15-25% natural gas savings. They also offer better modulation, lower emissions, and improved controls integration.

Do you handle gas permits and inspections?

Yes. All boiler work is performed by TSSA-licensed gas technicians. We obtain required permits, schedule inspections, and provide complete documentation. Your building receives all necessary compliance certificates for insurance and regulatory purposes.

Boiler Replacement: Reliable Building Heat

Boilers are the heart of your building's heating system. When they age beyond reliable operation, replacement isn't just about comfort—it's about safety, efficiency, and avoiding mid-winter emergencies.

We manage complete boiler replacement projects from equipment selection through commissioning. Whether you're upgrading a single atmospheric boiler to high-efficiency condensing technology or replacing an entire multi-boiler plant, our team ensures minimal downtime and optimal performance.

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Energy savings

Modern condensing boilers achieve 90-98% efficiency versus 75-85% for older units. This translates to 15-25% lower natural gas bills—savings of $10,000-50,000+ annually for typical condos.

Improved reliability

New boilers with modern controls, redundant components, and proper sizing eliminate the mid-winter breakdowns that put residents at risk and require emergency repairs.

Lower emissions

High-efficiency boilers produce significantly less CO2 and NOx emissions. Many municipalities offer incentives for low-emission equipment to support climate goals.

Types of boilers we install

Different buildings have different heating requirements. We work with all common boiler configurations and can recommend the best approach for your building's needs.

Condensing Boilers

90-98% efficiency by recovering heat from flue gases. The modern standard for new installations.

Modular Systems

Multiple smaller boilers that stage on/off based on demand. Excellent redundancy and efficiency.

Fire-Tube

Traditional design with proven reliability. Good for larger capacity requirements.

Water-Tube

Compact design with quick response. Common in space-constrained mechanical rooms.

Cast Iron Sectional

Individual sections can be replaced. Good longevity but lower efficiency than condensing.

Combination Systems

Heating and domestic hot water from one system. Efficient for smaller buildings.

Why proactive boiler replacement?

A boiler failure in January is a building emergency. Proactive replacement on your schedule is far better than reactive replacement on the boiler's schedule.

Avoid emergencies: Old boilers fail without warning, often during cold snaps when they're working hardest. Emergency replacement costs 30-50% more and may leave residents cold for days.
Efficiency gains: Replacing a 30-year-old atmospheric boiler with modern condensing technology can cut gas consumption by 20-30%. At current gas prices, payback is often 5-8 years.
Parts availability: Parts for old boilers become scarce and expensive. Eventually, even routine repairs become impossible as components are discontinued.
Insurance requirements: Insurers increasingly require documentation of boiler age and condition. Old, poorly maintained equipment can affect coverage and premiums.

Our replacement process

Boiler replacement requires careful planning to maintain heat during the project and ensure proper integration with existing systems.

Assessment

Existing equipment evaluation
Heating load calculation
Mechanical room assessment
Gas supply verification
Venting requirements

Engineering

Equipment selection
Piping design
Controls integration
Venting design
Permit applications

Procurement

Equipment ordering
Lead time management
Rigging coordination
Utility rebate applications
Material staging

Demolition

System isolation
Piping disconnection
Old boiler removal
Asbestos abatement (if needed)
Area preparation

Installation

Boiler placement
Piping connections
Gas hookup
Venting installation
Controls wiring

Commissioning

System startup
Combustion analysis
Safety testing
BAS integration
Documentation

Boiler manufacturers we install

We work with leading commercial boiler manufacturers and can recommend the best fit for your building's requirements and budget.

Aerco

High-efficiency condensing

Lochinvar

Condensing & modular

Viessmann

German engineering

Weil-McLain

Cast iron & condensing

Cleaver-Brooks

Commercial fire-tube

Fulton

Vertical water-tube

Patterson-Kelley

MACH condensing

IBC

Modular systems

Also installing: Burnham, Buderus, NTI, Laars, Raypak, HTP, and other commercial boiler manufacturers. We help select equipment based on your building's heating load, efficiency targets, space constraints, and total cost of ownership.

Compliance & safety

Boiler replacement involves gas work, which is heavily regulated for safety. We handle all compliance requirements so you can focus on building operations.

TSSA Certification

All work performed by TSSA-licensed gas technicians (G1/G2). Proper permits obtained, inspections scheduled, and compliance certificates provided for your records.

Gas Code Compliance

All installations meet current Ontario gas code requirements including proper venting, combustion air, and safety devices. Documentation provided for insurance purposes.

Asbestos Handling

Older boilers often have asbestos insulation. We coordinate proper testing and, if needed, licensed abatement before removal. Full documentation for your building records.

For property managers & boards

Boiler replacement is a significant capital project that directly affects resident comfort and building safety. We understand the importance of proper planning, transparent communication, and reliable execution.

Board presentations: We present options clearly, explaining trade-offs between equipment types, efficiency levels, and costs. We're available for AGMs and board meetings.
Reserve fund alignment: Projects can be timed to match funding availability, with documentation supporting reserve fund study updates.
Utility rebates: High-efficiency boilers often qualify for significant utility incentives. We identify and apply for applicable programs to offset project costs.
No-heat contingency: For buildings with limited redundancy, we have contingency plans including temporary heating to ensure resident safety during the project.

Boiler Projects Across Toronto

We've completed boiler replacements in buildings across the GTA—from single-boiler mid-rises to multi-boiler high-rise plants. See our project portfolio for examples.

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FAQs

Equipment lead times currently range from 8-16 weeks depending on manufacturer and specifications. Once equipment arrives, on-site work typically takes 1-2 weeks for single-boiler replacement, or 4-8 weeks for multi-boiler plants when staged to maintain heat. We schedule work during shoulder seasons when possible and work quickly to minimize any heating interruption.

Modern condensing boilers achieve 90-98% efficiency versus 75-85% for older atmospheric units. This typically translates to 15-25% lower natural gas consumption. For a mid-rise condo spending $50,000/year on heating gas, this can mean $7,500-12,500 in annual savings—often paying back the efficiency premium within 5-8 years.

For buildings with multiple boilers, we stage replacement to maintain heating capacity throughout the project. For single-boiler buildings, we schedule during shoulder seasons (spring/fall) and work quickly—typically 3-5 days of actual boiler downtime. For critical situations, we can arrange temporary heating equipment to ensure resident safety.

Many boilers installed before the 1990s have asbestos-containing insulation on piping, boiler jackets, or ductwork. We coordinate proper testing before any demolition and, if asbestos is present, arrange for licensed abatement. This is included in our project scope with proper documentation for your building records.

Yes, high-efficiency boiler installations often qualify for utility incentive programs. Rebates can range from $5,000 to $50,000+ depending on equipment size and efficiency level. We identify applicable programs during the proposal phase and handle rebate applications as part of our project scope to maximize your recovery.

Costs depend on boiler capacity, type (condensing vs. non-condensing), number of units, and required modifications. Typical projects range from $50,000 for smaller condensing boilers to $500,000+ for large multi-boiler plant replacements. High-efficiency condensing equipment costs more initially but often qualifies for rebates and pays back through energy savings. We provide detailed proposals after site assessment.

Ready to upgrade your heating plant?

Request a site assessment and detailed proposal. We'll help you understand your options, timeline, and budget requirements for a successful boiler replacement.

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