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Answers to Your Heating, Cooling and Gas Service Questions

HVAC and Gas Services FAQs

General HVAC Questions
HVAC Maintenance Questions
HVAC Repair Questions
Furnace Questions
Air Conditioning Questions
Boiler & Water Heater
Gas & Red Tag Questions
Booking & Pricing

Still Have Questions?

Every heating and cooling system is different. If your question is not answered here, contact Extel Gas Services for personalized assistance.

Whether you need an HVAC inspection, furnace repair, air conditioner service, boiler maintenance, water heater installation, gas connection or red tag clearance, our team is ready to discuss your requirements.

Speak With an HVAC and Gas Service Professional

General HVAC Questions

What HVAC services does Extel Gas Services provide?

Extel Gas Services provides a comprehensive selection of residential and commercial HVAC and gas services, including:

  • Air conditioner installation
  • Furnace installation
  • Boiler installation
  • Combi boiler installation
  • Hot water tank installation
  • Tankless water heater installation
  • Humidifier installation
  • HVAC maintenance
  • Heating and cooling repairs
  • New gas connections
  • Gas red tag clearance
  • Residential HVAC services
  • Commercial HVAC services
  • Emergency heating and cooling services

Our team can inspect your existing equipment, identify potential problems and recommend a suitable repair, replacement or maintenance solution.

Which areas does Extel Gas Services serve?

Extel Gas Services is based in Scarborough and serves customers throughout Toronto and surrounding communities in the Greater Toronto Area.

When requesting service, provide your address or postal code so our team can confirm availability in your location.

How do I know which HVAC system is right for my property?

The right system depends on several factors, including:

  • The size and layout of the property
  • Existing ductwork or hydronic heating system
  • Insulation and air leakage
  • Number of occupants
  • Heating and cooling requirements
  • Energy-efficiency goals
  • Available installation space
  • Budget
  • Existing gas, electrical and ventilation connections

Choosing equipment based only on price or square footage can lead to poor performance. A professional assessment helps determine the appropriate equipment type and capacity for the property.

Why is correct HVAC sizing important?

An HVAC system that is too small may struggle to maintain the desired indoor temperature. A system that is too large may turn on and off too frequently, resulting in uneven comfort, unnecessary wear and inefficient operation.

Proper sizing helps improve:

  • Temperature consistency
  • Energy efficiency
  • Humidity control
  • Equipment lifespan
  • Indoor comfort
  • Overall system performance

A qualified technician should assess the property before recommending new heating or cooling equipment.

HVAC Maintenance Questions

How often should an HVAC system be serviced?

Most heating and cooling equipment should be professionally inspected at least once a year.

Air conditioning systems are commonly serviced before the cooling season, while furnaces and boilers are typically inspected before the heating season. Properties with older equipment, heavy system usage or recurring problems may require more frequent attention.

Regular maintenance can identify worn components, restricted airflow, drainage problems and other issues before they cause a larger breakdown.

What is included in an HVAC maintenance appointment?

The exact work depends on the system being serviced. A maintenance appointment may include:

  • Visual equipment inspection
  • Thermostat testing
  • Filter inspection
  • Electrical connection inspection
  • Burner and ignition inspection
  • Airflow assessment
  • Venting inspection
  • Condensate drain inspection
  • Safety control testing
  • Operational testing
  • Identification of damaged or worn components

If the technician identifies a problem, the customer should receive an explanation and recommended next steps.

Can HVAC maintenance lower my energy bills?

Maintenance cannot guarantee a specific reduction in energy costs, but it can help equipment operate more effectively.

Dirty filters, restricted airflow, worn components and poorly performing controls may cause a system to work harder than necessary. Servicing these areas may improve performance and prevent energy waste.

Energy use is also influenced by insulation, thermostat settings, weather, equipment age and household usage.

How often should I change my HVAC filter?

Many standard HVAC filters should be inspected every one to three months. However, the correct schedule depends on:

  • Filter type
  • Number of people in the home
  • Pets
  • Smoking
  • Dust levels
  • Renovation activity
  • Allergy concerns
  • Frequency of system operation

A visibly dirty or restricted filter should be replaced. Always use a filter that is compatible with the equipment.

What happens if HVAC maintenance is neglected?

Neglecting maintenance may contribute to:

  • Reduced heating or cooling performance
  • Higher energy consumption
  • Poor airflow
  • Unusual noises
  • Unexpected breakdowns
  • Increased wear on components
  • Shorter equipment lifespan
  • Potential safety concerns

Routine inspection does not eliminate every possible breakdown, but it can help identify developing issues earlier.

HVAC Repair Questions

What are the signs that my HVAC system needs repair?

Arrange an inspection when you notice:

  • Unusual banging, rattling, grinding or buzzing
  • Weak airflow
  • Uneven room temperatures
  • Frequent cycling
  • Unexpected increases in energy use
  • Unusual odours
  • Water leaking around the equipment
  • The system not reaching the thermostat setting
  • Furnace or boiler ignition problems
  • Air conditioner blowing warm air
  • Heating system blowing cool air
  • Equipment shutting down unexpectedly

Continuing to operate malfunctioning equipment can sometimes worsen the problem.

Should I repair or replace my HVAC system?

Repair may be appropriate when the equipment is relatively new, the issue is limited and the rest of the system remains in good condition.

Replacement may deserve consideration when:

  • The equipment is approaching the end of its expected service life
  • Repairs are becoming frequent
  • Important components have failed
  • Replacement parts are difficult to obtain
  • The system no longer heats or cools effectively
  • Energy costs continue to rise
  • The equipment does not meet the property’s needs
  • Repair costs are high compared with replacement

A professional inspection can help compare the likely repair cost with the benefits of installing new equipment.

Why does my HVAC system keep turning on and off?

Frequent cycling may be related to:

  • A dirty filter
  • Restricted airflow
  • Incorrect thermostat operation
  • Oversized equipment
  • Electrical problems
  • Overheating
  • Refrigeration issues
  • Dirty components
  • Faulty sensors or controls

Because several problems can cause this symptom, the system should be inspected before replacing parts.

Why are some rooms hotter or colder than others?

Uneven temperatures can result from:

  • Restricted supply or return vents
  • Ductwork problems
  • Poor insulation
  • Air leakage
  • Incorrect equipment sizing
  • Thermostat location
  • Sun exposure
  • An unbalanced duct system
  • Insufficient airflow

A technician can inspect the system and help determine whether the issue originates from the equipment, ductwork or building itself.

Do you provide emergency HVAC repairs?

Extel Gas Services offers emergency service for urgent heating, cooling and gas-related problems, subject to technician availability.

When contacting the company, explain:

  • Which system has stopped working
  • Any noises or smells
  • Whether there is water leakage
  • Whether the equipment has completely shut down
  • Whether a gas appliance is involved
  • The property address

If you suspect a gas leak or immediate danger, leave the affected area and contact the appropriate emergency or utility service before arranging routine HVAC repair.

Furnace Questions

How do I know whether my furnace needs repair?

Common warning signs include:

  • The furnace does not start
  • The furnace runs but produces insufficient heat
  • The burner does not ignite properly
  • The system shuts off unexpectedly
  • The blower runs continuously
  • Airflow is weak
  • Unusual noises or odours are present
  • The thermostat setting is not maintained
  • Energy consumption increases unexpectedly

A technician should diagnose the underlying cause before repairs are authorized.

When should I replace my furnace?

Consider replacing a furnace when it requires frequent repairs, has major component problems, no longer heats the property evenly or has become costly to operate.

Age is only one factor. A professional assessment should also consider the condition of the heat exchanger, blower, controls, venting and other critical components.

Why is my furnace blowing cold air?

Possible causes include:

  • Incorrect thermostat settings
  • A dirty filter
  • Ignition or flame-sensing problems
  • Restricted airflow
  • Overheating
  • A control board issue
  • Fuel supply problems
  • A mechanical fault

Turn the system off if you notice burning smells, repeated shutdowns or other signs of unsafe operation.

Air Conditioning Questions

Why is my air conditioner running but not cooling?

Possible causes include:

  • A dirty filter
  • Restricted airflow
  • Incorrect thermostat settings
  • Dirty indoor or outdoor coils
  • Refrigerant-related issues
  • Electrical problems
  • A failing compressor or fan
  • Equipment that is incorrectly sized
  • Excessive heat entering the property

An inspection is required to identify the exact cause.

When should I schedule air conditioner maintenance?

Air conditioning maintenance is best scheduled before periods of heavy summer use. This provides an opportunity to inspect the system, test its operation and address developing problems before the hottest weather arrives.

Why is water leaking from my air conditioner?

Water leakage may be caused by:

  • A blocked condensate drain
  • A damaged drain pan
  • Improper drainage
  • Frozen coils
  • Restricted airflow
  • Installation problems

Turn off the system if water is approaching electrical components or causing property damage.

Boiler and Water Heater Questions

How often should a boiler be serviced?

A boiler should generally receive a professional inspection at least once a year, preferably before the heating season.

Regular boiler maintenance may include inspection of:

  • Burners
  • Ignition components
  • Venting
  • Safety controls
  • Pumps
  • Pressure
  • Expansion components
  • Visible leaks
  • Overall operation
What is the difference between a conventional boiler and a combi boiler?

A conventional boiler works as part of a heating system and may use separate equipment or storage for domestic hot water.

A combi boiler combines space heating and domestic hot water functions within one unit. Whether a combi system is appropriate depends on the property, hot-water demand, existing infrastructure and installation requirements.

Should I install a tank or tankless water heater?

A storage-tank water heater keeps a supply of heated water available. A tankless system heats water as it is required.

The better option depends on:

  • Household hot-water demand
  • Available space
  • Existing connections
  • Venting requirements
  • Upfront budget
  • Long-term usage expectations
  • Simultaneous hot-water requirements

A site assessment can help determine which system is more practical.

Why is my water heater not producing enough hot water?

Possible causes include:

  • Incorrect temperature settings
  • Sediment accumulation
  • Burner or ignition problems
  • Faulty controls
  • A damaged heating component
  • A tank that is too small
  • Excessive simultaneous demand
  • Equipment deterioration

A technician can inspect the water heater and advise whether servicing, repair or replacement is appropriate.

Gas Service and Red Tag Questions

What is a gas red tag?

A gas red tag may be issued when a gas appliance or installation is identified as unsafe or not compliant with applicable requirements.

The appliance may need to be repaired, replaced or disconnected depending on the nature of the issue. A qualified gas technician must inspect the problem and complete the necessary corrective work.

Can Extel Gas help clear a gas red tag?

Extel Gas Services provides red tag clearance services. The process may involve:

  1. Reviewing the red tag notice
  2. Inspecting the affected appliance or installation
  3. Identifying the required corrective work
  4. Completing approved repairs or replacement
  5. Testing the equipment
  6. Completing the applicable clearance process

Keep the original red tag information available when booking service.

Do I need a professional for a new gas connection?

Gas connections should be installed, altered and tested by an appropriately qualified professional.

Gas work may involve piping, shutoff valves, venting, combustion air, appliance connections, pressure testing and safety verification. Incorrect work can create serious safety risks.

What should I do if I smell gas?

Do not operate switches, appliances, phones or ignition sources near the suspected leak. Leave the area and contact the appropriate emergency or gas utility service from a safe location.

Do not attempt to locate or repair a gas leak yourself.

Booking and Pricing Questions

How much does HVAC repair cost?

Repair costs depend on:

  • Type of equipment
  • Cause of the problem
  • Required replacement parts
  • Accessibility
  • Labour involved
  • System age
  • Whether emergency service is required

A technician usually needs to diagnose the equipment before providing an accurate repair recommendation.

How can I request a quote?

Call Extel Gas Services at (416) 849-7997 or submit the website contact form.

Provide:

  • Your name and contact information
  • Property location
  • Type of equipment
  • Description of the issue
  • Age of the system, if known
  • Preferred appointment time

Photographs, equipment model information and details of previous repairs may also be helpful.

Do you provide residential and commercial HVAC services?

Yes. Extel Gas Services provides heating, cooling and gas-related services for residential and commercial properties.

Commercial projects may require additional information about equipment capacity, building access, operating hours and business requirements.

Still Have Questions?

Every heating and cooling system is different. If your question is not answered here, contact Extel Gas Services for personalized assistance.

Whether you need an HVAC inspection, furnace repair, air conditioner service, boiler maintenance, water heater installation, gas connection or red tag clearance, our team is ready to discuss your requirements.

Speak With an HVAC and Gas Service Professional

Extel_Logo_company_logo

Call Us

(416) 849-7997

Email Us

info@extelgas.com

Call Extel Gas today or request a service quote online.

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Call Us

(416) 849-7997

Email Us

info@extelgas.com

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