Boiler Service Near Me For Commercial Buildings

When Your Boiler Goes Down, Your Business Doesn't Have To

A boiler failure in January isn’t only uncomfortable, it’s also extremely problematic. It’s a liability. Tenants complain. Staff can’t work. Pipes freeze. Every minute that you delay will come at a cost. 


For over 2 decades BOS Plumbing Company and Drains has been repairing, servicing and installing commercial boilers throughout the GTA. 


We know these systems like most people know how to get to work, by feeling them out, by listening to them, by knowing what’s normal and what’s not. Call us if you require a commercial boiler service near me in Mississauga, Oakville, Hamilton, Milton, Niagara or Cambridge – we arrive the same day and solve the problem right away.

Complete Commercial Boiler Inspection & Service

Boiler services are NOT a ‘walking around inspection’. When our techs come into your home, they’re performing a complete inspection and tuning and not a clip board exercise. 


What’s included in every commercial boiler service:

  • Full combustion analysis and burner adjustment
  • Flue and heat exchanger inspection for cracks, corrosion, or blockages
  • Pressure and temperature testing across all zones
  • Safety valve, aquastat, and control checks
  • Water quality assessment and system flush if needed
  • Circulator pump inspection
  • Gas valve and ignition system testing
  • Written report with findings and recommendations


All major brands of commercial boilers are serviced including: Viessmann, Weil-McLain, Burnham, Lochinvar, Navien, IBC, Crown and more. Gas, oil or combination units.

Our Plumbing services

Expert solutions for all your residential & commercial plumbing needs

 

Service Areas

We serve the Greater Toronto Area and surrounding regions with local expertise

 

Types Of Commercial Boilers We Service 

BOS Plumbing and Drains provides all types of Commercial and Residential Boiler Services in the Greater Toronto Area. Our Engineers are trained on legacy systems as well as high efficiency systems.

We service and install:

  • Condensing boilers
  • Non-condensing boilers
  • Combi boiler systems
  • Combination boiler installations
  • Hydronic heating systems
  • Hot water boilers
  • Steam boilers
  • Wall-mounted commercial boilers
  • Floor-standing boiler systems
  • Multi-zone heating systems

If you’re looking for a routine boiler service, emergency boiler repair or a complete new boiler installation near you, we can service all the boiler systems found in office buildings, restaurants, apartment complexes and commercial facilities in Mississauga, Oakville, Hamilton, Milton, Niagara and Cambridge.

Boiler Repair Vs. Boiler Replacement: We’ll Tell You The Truth 

Some contractors are trying to promote replacement after the repair. Others repair a system that it was necessary to replace two seasons ago. We have the straight story!

If the problem is localized and your boiler is less than 15 years old, then a failed circulator or a malfunctioning gas valve, or a heat exchanger crack repair will likely be worthwhile. The most frequently used commercial parts are kept in our service vehicles and we can repair most of the problems the same day. We’re the plumbing company that shows up ready when you need a quick job done, such as a boiler repair near you.

If the unit has been around longer, it’s less efficient and you start getting recurring problems, we’ll explain your new boiler replacement options to you. We fit combi boiler installations, combination boiler systems and regular hot water boilers, to the actual heat load of your building, rather than what fits on a truck.

No pressure. Real numbers. You decide.

Signs Your Commercial Boiler Needs Service 

When a major boiler failure occurs, most commercial systems will give you some indication, like warning signs. These problems can be prevented from becoming more serious if they are found early.

If you see the following, give BOS Plumbing and Drains a call:

  • Uneven heating across zones
  • Loud banging or kettling noises
  • Water leaks around the boiler
  • Repeated pressure loss
  • Rising heating bills
  • Ignition or pilot light issues
  • Inconsistent hot water
  • Boiler short cycling
  • Strange smells or unusual noises

If you’re experiencing any of these symptoms, it’s best to have a boiler service near me in the early season to avoid a complete shutdown later on.

Professional Boiler Installation For Commercial Properties 

There’s more to installing a new commercial boiler than meets the eye. It’s not all about the equipment. You also require the correct sizing, venting, coding compliant gas connections and the correct plumbing balance in each zone.

BOS covers all of the above:

  • Heat load calculations for your building
  • Equipment selection and sourcing
  • Full installation including gas, venting, and controls
  • City permits and inspections (we pull them, you don’t have to)
  • System startup, testing, and walk-through with your building manager
  • Ongoing maintenance plans available

Combi Boiler installations, Combination Boiler systems and Dedicated Hot Water Heating Units for Commercial Properties of All Sizes from small office to multi-tenant residential, restaurants, schools and light industrial buildings. Looking for a combi boiler installation near me or a licensed combi boiler installation team for a complete combination boiler installation, BOS is available to provide a quote.

Why GTA Property Managers Call Bos First 

This is our 20th year in business in this market. It’s not a marketing statement, it’s the truth, for the reasons that we’re getting referrals from property managers who have previously tried 3 other contractors.

We are a complete plumbing company and HVAC services provider and our knowledge of boilers is just one of our skills that we apply to every job. Our licensed gas fitters and plumbers know how heating and cooling systems, plumbing and building operations relate – it’s reflected in the work.

Some things that make a difference to commercial clients:

We Show Up: It seems simple enough. It isn’t. Our schedule is true and our techs are on time! If there are changes made, we call.

We Document Everything: following each service visit, a written record is provided. It’s good for your records, it’s good for insurance purposes and it’s good if the next tech comes by and wants the unit for a service call.

We Work Around Your Tenants: Commercial properties don’t always allow a complete shutdown of the system during business hours. We organise around your schedule.

We’re Licensed And Insured: All of our technicians are licensed Gas fitters in Ontario and are insured. Our work fulfils TSSA standards. We do all of the permits if they are required for your municipality.

Areas We Serve For Commercial Boiler Service

BOS Plumbing and Drains provides commercial plumbing services to the entire greater Golden Horseshoe region:

  • Mississauga from Port Credit to Streetsville, we’ve serviced boilers in mid-rise residential, retail plazas, and light industrial buildings throughout the city. Looking for a plumber in Mississauga who handles commercial heating? That’s us.
  • Oakville residential stacked townhomes, commercial office buildings, medical facilities. We’re the plumber in Oakville Ontario that commercial clients call back.
  • Hamilton older commercial stock and industrial buildings, many running legacy boiler systems we know well.
  • Milton newer builds and fast-growing commercial corridors.
  • Niagara including St. Catharines, Niagara Falls, and Welland.
  • Cambridge commercial and industrial facilities, including multi-unit residential.

Look no further, if you are looking for boiler fitters near me, or plumbers near me in any of these areas, you’ve found them.

Commercial Properties We Service 

We can provide commercial boiler services to all types of properties within the GTA & Golden Horseshoe area.

Regularly work with:

  • Apartment buildings
  • Condo corporations
  • Restaurants
  • Retail plazas
  • Office buildings
  • Warehouses
  • Medical clinics
  • Schools
  • Hotels
  • Manufacturing facilities
  • Industrial units
  • Multi-tenant commercial properties

We have installed a wide range of heating systems from legacy boilers in Hamilton industrial buildings, to even newer high efficiency heating systems in Milton commercial developments, over the course of 20+ years in the industry.

Boiler Problems We See Most Often And Fix Fast 

Patterns emerge after 20 years of the commercial boiler business. These are the most common calls we receive:

No Heat At One Zone: Most likely the zone valve is stuck open or the circulator pump is not working. Usually can be resolved on the day of the incident.

Boiler Keeps Shutting Off: Condensate traps are clogged, pressure relief valves are malfunctioning or water level is low and resulting in a safety cutout. It is not diagnosed on a guess and check basis.

Strange Noises Banging, Kettling, Gurgling: Kettling is generally an indicator of limescale or flow. If there is banging in a steam system it is likely that water is accumulating in places it shouldn’t. Both are diagnosable.

Pilot Will Not Stay Lit / Ignition Failure: Gas valve, thermocouple or ignition board. Common parts are available for purchase.

Repeatedly Losing Pressure In The Boiler: A leak is present in the system or around the pressure relief valve or in the expansion tank. We found it.

Yellow Or Orange Flame: Combustion problem and a carbon monoxide hazard. Call us immediately.

Boiler Maintenance Plans For Commercial Properties 

The most costly boiler service is an emergency one that occurs at 11pm in February.

Our annual maintenance contracts for commercial buildings are designed to thwart that. Auto-tune-up performed in the fall and a system check during the season when needed, and priority emergency response when required.

Multiple buildings are scheduled and managed in one place, with a single contact for the property manager. A headache-free way to coordinate, and more peace of mind.

Talk to us about the costs of a maintenance plan.

What To Expect When You Call BOS 

  1. You call or fill out our contact form. Someone picks up or calls back within the hour during business hours.
  2. We schedule a same-day or next-day visit for most service calls.
  3. A licensed technician arrives, inspects the system, and gives you a clear diagnosis before any work starts.
  4. You approve the scope. We do the work.
  5. You get a written service record.

No surprise invoices. No upsells you didn’t ask for.

Emergency Commercial Boiler Repair In GTA 

In the winter months when an office’s commercial boiler breaks down, you typically can’t wait until tomorrow. Tenants won’t sit idly by while the loss of heat, pressure problems or ignition failures wreak havoc on your building operations.

BOS Plumbing and Drains is a quick response plumbing and drains company that offers emergency boiler repair service throughout the GTA. That’s when we the same day plumber and emergency plumber commercial properties come to work for you.

We help with:

  • No heat emergencies
  • Boiler shutdowns
  • Ignition and pilot failures
  • Leaking boiler systems
  • Pressure loss problems
  • Circulator pump failures
  • Frozen heating lines
  • Emergency heating diagnostics

When you call for a boiler repair near me, a 24-hour plumber or emergency commercial heating support, you can expect a quick response from our licensed technicians who will be able to effectively diagnose the problem.

Why Regular Boiler Maintenance Matters

Commercial properties can reduce heating failures, unexpected maintenance costs and other issues during busy winter periods by having their boilers regularly serviced.

There is help to be found by regular servicing:

  • Reduce emergency plumbing repairs
  • Improve heating efficiency
  • Lower energy costs
  • Extend boiler lifespan
  • Improve system reliability
  • Catch small issues early
  • Reduce tenant complaints and downtime

Our commercial boiler service will involve a complete check-up, testing, cleaning and system checks to ensure your heating system is safe and efficient throughout the year.

Why Commercial Property Owners Choose BOS Plumbing And Drains 

A quick fix for the next day isn’t enough for commercial heating issues. Boiler technicians must know how the boiler system operates, as well as plumbing, gas connections and building operations.

BOS Plumbing and Drains has been offering quality commercial boiler service, commercial boiler repair and commercial boiler installation to the GTA for over 20 years. As a full-service plumbing company as well as HVAC company, our licensed plumbers, gas fitters and HVACR technicians can take care of the boiler itself and all the plumbing connected to it.

We have a licensed team who can install older heating systems in Hamilton’s industrial properties or install a modern, high efficiency boiler system in the office buildings from Mississauga all the way to Oakville multi-unit developments.

If you’re a plumber looking for a referral partner, a commercial plumber who needs support on a large scale installation, or a property manager who is looking for reliable plumbers services across the GTA then BOS delivers.

What makes clients stay with BOS:

  • Same-day service available for many boiler emergencies
  • Licensed plumbers and gas fitters
  • Experience with commercial and multi-unit properties
  • Honest repair vs. replacement recommendations
  • Written service documentation after every visit
  • Preventative maintenance programs available
  • Full plumbing repair and HVAC service capability
  • Service across Mississauga, Oakville, Hamilton, Milton, Niagara, and Cambridge

The boiler service near me, boiler fitters near me, and trusted plumbers GTA want a company that arrives on time, provides clear communication and gets the job done right the first time.

    GET A PLUMBER NOW





    FAQs

    Central air conditioner installation on a home with existing ductwork is typically completed in one day. Mini split installation for a single zone takes 3–5 hours. Multi-zone ductless ac installation may require a full day depending on the number of indoor units and complexity of line set routing.

    For most central air conditioner installation work involving electrical connections, a permit is required. BOS manages permit requirements as part of our service, keeping you fully code-compliant without the administrative headache.

    Home depot ac installation services are typically coordinated through third-party subcontractors. BOS is a direct-service, licensed HVAC and plumbing company with 20+ years of GTA experience and full accountability for every job. You work with us from quote to completion.

    Mini splits AC don’t require ductwork and allow room-level temperature control. Central air conditioner installation delivers whole-home cooling through existing ducts from a single system. The right choice depends on your home’s layout, existing infrastructure, and how you want to manage cooling across different spaces. 

    Sometimes, system components need to be matched properly for efficiency and reliability. Our technicians will assess compatibility between existing indoor components and a new outdoor unit before recommending partial versus full system replacement.

    We cover our installations with a workmanship warranty. If an issue develops that’s related to the installation, we return and resolve it at no charge. Call us directly, no third-party warranty service centres, no runaround.