Fireplace Installation, Repair & Maintenance — Durham Region

Cassar Heating & Air Conditioning provides professional fireplace services across all of Durham Region, from installation to emergency repairs. Our TSSA certified technicians ensure your gas fireplace operates safely and efficiently throughout Ontario’s heating season.


TSSA Certified

Same-Day & Emergency

5-Star Google Reviews

All of Durham Region


Our Services

Complete Fireplace Services

Fireplace Installation

Professional gas fireplace installation with proper venting and gas line connections. We handle permits, inspections, and ensure code-compliant installation for safe, efficient operation.

Fireplace Repair

Expert repair of gas fireplace components including burners, pilot lights, thermocouples, and control valves. Same-day emergency service available when your fireplace won’t light or operates unsafely.

Fireplace Replacement

Complete fireplace replacement when repairs aren’t cost-effective. We’ll help you choose the right high-efficiency model and handle removal of your old unit plus installation of the new system.

Annual Tune-Up & Maintenance

Comprehensive annual service including cleaning, safety inspection, and performance optimization. Regular maintenance prevents breakdowns, ensures safe operation, and maintains manufacturer warranty coverage.

Emergency Fireplace Service

24/7 emergency service for gas leaks, pilot light failures, and other urgent fireplace issues. Our certified technicians respond quickly to restore safe heating when you need it most.

High-Efficiency / Premium Upgrade

Upgrade to modern high-efficiency gas fireplace units with advanced features like remote controls, variable flame height, and improved heat output for better comfort and energy savings.

Our Process

How Fireplace Service Works

1

Call or Book Online

Contact David directly at (416) 508-4585 or use our online booking system. We’ll schedule your fireplace service at a convenient time and provide upfront pricing information.

2

Diagnosis & Quote

Our TSSA certified technician arrives on time, diagnoses your fireplace issue, and provides a detailed written quote before any work begins. No hidden fees or surprises.

3

Work Completed

Once approved, we complete the fireplace repair, installation, or maintenance service efficiently and cleanly. All work meets TSSA standards and local building codes.

4

Done & Comfortable

We test your fireplace thoroughly, clean up our work area, and ensure you’re completely satisfied. You’ll have reliable, safe fireplace operation and peace of mind.

Why Choose Cassar

Durham Region’s Trusted Fireplace Experts

When you choose Cassar Heating & Air Conditioning for your fireplace needs, you’re working with experienced professionals who put your safety and satisfaction first.

  • TSSA Certified & Fully Insured — Licence #000398183
    All fireplace work performed by certified technicians who meet Ontario’s strict safety standards
  • Upfront, Honest Pricing — you know the cost before work begins
    Written quotes with no hidden fees, so you can make informed decisions about your fireplace service
  • Same-Day & Emergency Response across Durham Region
    Available when you need us most, including emergency service for urgent fireplace safety issues
  • Honest Repair vs Replace Advice — we won’t push unnecessary replacements
    David will tell you honestly when a repair makes sense or when replacement is the better investment
  • All Brands Serviced — independent advice always in your best interest
    We service every major fireplace brand and recommend solutions based on your needs, not sales quotas
About Cassar

Local Durham Region Company

David Cassar started Cassar Heating & Air Conditioning to provide honest, professional HVAC services to Durham Region homeowners. As a TSSA certified technician, David has seen too many homeowners get taken advantage of by high-pressure sales tactics and inflated pricing.

That’s why Cassar operates differently. We provide upfront pricing, honest recommendations about repair versus replacement, and never pressure you into services you don’t need. When David arrives at your home, you’re getting an experienced professional who genuinely cares about solving your heating and cooling problems.

Based right here in Durham Region, we understand local climate challenges and building requirements. Our goal is simple: keep your family comfortable while treating you fairly and honestly.

By the Numbers
5★
Google Reviews

13
Communities

1
Call to David

TSSA
#000398183

Customer Reviews

What Durham Region Homeowners Say

★★★★★

“David installed our new gas fireplace and the whole experience was fantastic. Professional installation, clean work, and fair pricing. We’re enjoying cozy evenings by the fire all winter long.”

Lauren Bull
Google Review · Durham Region

★★★★★

“Called David when our fireplace wouldn’t light before a family gathering. He came same day, fixed the pilot light issue quickly, and had us up and running for the evening. Saved our dinner party!”

Mike Micevski
Google Review · Durham Region

★★★★★

“Honest service and fair prices. David could have sold me a new fireplace but instead fixed my existing unit for a fraction of the cost. You don’t find integrity like this anymore.”

James S.
Google Review · Durham Region

Buying Guide

Fireplace Installation & Service Guide

Essential information to help you make informed decisions about your fireplace needs in Durham Region.

What types of gas fireplaces are available in Ontario?

Ontario homeowners can choose from direct-vent, ventless (vent-free), and traditional vented gas fireplaces. Direct-vent units are most popular because they vent directly through an exterior wall and offer excellent efficiency. Ventless fireplaces don’t require venting but have specific room size and ventilation requirements. Traditional vented fireplaces use existing chimneys but are less efficient. Each type has different installation requirements, costs, and heat output capabilities.

How much does gas fireplace installation cost in Ontario?

Gas fireplace installation typically ranges from $2,500 to $8,000 depending on the unit type, venting requirements, and installation complexity. Direct-vent units are generally less expensive to install than traditional chimney systems. Additional costs may include gas line modifications, electrical work for electronic ignition, and finishing materials around the fireplace. Cassar works with all budgets and offers financing options to make your fireplace project affordable. The best way to know what your specific job will cost is to get a free quote from David — no pressure, no obligation.

Do I need a chimney for a gas fireplace?

Most modern gas fireplaces don’t require a traditional chimney. Direct-vent units use specialized venting that goes directly through an exterior wall, making them suitable for homes without chimneys. These systems bring in outside air for combustion and vent exhaust gases directly outside. Ventless gas fireplaces require no venting at all but must meet specific room size and ventilation requirements. Only traditional gas fireplace inserts require existing chimney systems, which limits where they can be installed.

How efficient are gas fireplaces compared to wood burning?

Gas fireplaces are significantly more efficient than wood-burning fireplaces. High-efficiency gas units can achieve 70-90% efficiency ratings, while traditional wood fireplaces typically operate at 10-20% efficiency. Gas fireplaces provide instant heat with consistent output, require no wood storage or ash cleanup, and produce minimal emissions. They also offer convenient operation with remote controls and thermostats. The clean burning nature of natural gas means more heat stays in your home rather than escaping up the chimney.

Can a gas fireplace heat a room or whole home?

Gas fireplaces are excellent for zone heating and can effectively warm 1,000-2,000 square feet depending on the unit size and home layout. While they provide valuable supplemental heat and can significantly reduce your main heating costs, most aren’t designed as primary heat sources for Ontario’s winter climate. High-efficiency fireplace inserts and larger direct-vent units offer the best heating capacity. For whole-home heating in Durham Region, gas fireplaces work best alongside your main HVAC system to provide comfort and energy savings.

How often does a gas fireplace need servicing?

Gas fireplaces should receive professional service annually, ideally in early fall before heating season begins. Annual maintenance includes cleaning the burner assembly, checking gas connections for leaks, inspecting and cleaning the venting system, testing safety controls and sensors, and verifying proper operation of the pilot light and ignition system. Regular maintenance ensures safe operation, maintains optimal efficiency, prevents costly emergency repairs, and keeps manufacturer warranties valid. Signs you need immediate service include unusual odors, yellow flames, or difficulty lighting.

Are there rebates available for gas fireplace installation in Ontario?

Ontario occasionally offers rebates for high-efficiency heating appliances through various programs, though specific fireplace rebates vary by year and program availability. Some utility companies may offer incentives for natural gas conversions or high-efficiency installations. Federal tax credits may also apply to qualifying high-efficiency units. Additionally, financing programs through manufacturers or contractors can make installation more affordable. Cassar stays current on available rebates and can help you identify potential savings for your fireplace project.

Still not sure? Call David at (416) 508-4585 for honest advice about your specific fireplace needs.

Seasonal Care

Year-Round Fireplace Maintenance

🍂

Fall Preparation

Schedule annual service before heating season begins. Fall is the ideal time for fireplace tune-ups, safety inspections, and any needed repairs. Book early to ensure availability before cold weather arrives and you need your fireplace most.

❄️

Winter Operation

Watch for warning signs like yellow flames, unusual odors, or difficulty lighting during peak usage months. Keep venting areas clear of snow and ice. If you smell gas or notice any safety concerns, turn off your fireplace immediately and call for emergency service.

🌱

Spring Planning

Spring is the perfect time for fireplace replacement or upgrade projects. With heating season over, you have time to research options and schedule installation without rushing. Take advantage of off-season pricing and ensure your new system is ready for next winter.

☀️

Summer Maintenance

Use the off-season for major maintenance or installations. Summer is ideal for venting system cleaning, gas line modifications, and comprehensive fireplace upgrades. Scheduling summer work often means better availability and competitive pricing.

Common Questions

Fireplace FAQ

How much does gas fireplace installation cost in Durham Region?

Gas fireplace installation typically ranges from $2,500 to $8,000 depending on the unit type, venting requirements, and installation complexity. Direct-vent units are generally less expensive to install than traditional chimney systems. The final cost depends on factors like gas line modifications, electrical work, and finishing materials. Cassar works with all budgets and offers financing options to make your fireplace project affordable.

Do I need a chimney or special venting for a gas fireplace?

Most modern gas fireplaces use direct-vent systems that don’t require a traditional chimney. These units vent directly through an exterior wall using a specialized pipe system. Ventless gas fireplaces are also available but have specific installation requirements. Only traditional gas fireplaces require existing chimney systems, making gas fireplaces a flexible heating option for most homes.

Can a gas fireplace be my primary heat source in Durham Region?

While gas fireplaces provide excellent supplemental heat, most models aren’t designed as primary heat sources for Ontario winters. High-efficiency gas fireplace inserts can heat 1,000-2,000 square feet effectively. For whole-home heating in Durham Region’s climate, gas fireplaces work best alongside your main HVAC system to reduce overall heating costs and provide zone heating.

How often should a gas fireplace be serviced in Ontario?

Gas fireplaces should be professionally serviced annually, ideally in early fall before heating season begins. Annual service includes cleaning the burner, checking gas connections, inspecting the venting system, and testing safety controls. Regular maintenance ensures safe operation, optimal efficiency, and extends your fireplace’s lifespan while preventing costly emergency repairs during peak winter months.

My gas fireplace won’t light — what should I check?

First, ensure the gas valve is fully open and the pilot light is lit. Check that your fireplace’s wall switch or remote control has working batteries. Verify the manual gas shut-off valve near the fireplace is open. If these basic checks don’t resolve the issue, or if you smell gas, turn off the system immediately and call a certified technician. Never attempt to repair gas fireplace components yourself.

Service Areas

Fireplace Services Across Durham Region

Cassar provides professional fireplace installation, repair, and maintenance services throughout Durham Region. Click your community below for local fireplace service information and customer reviews.


Fireplaces in Durham RegionAll Communities



Fireplaces in OshawaCity of Oshawa



Fireplaces in WhitbyTown of Whitby



Fireplaces in AjaxTown of Ajax



Fireplaces in PickeringCity of Pickering


Fireplaces in Clarington Municipality of Clarington →
Fireplaces in Bowmanville Clarington →
Fireplaces in Newcastle Clarington →
Fireplaces in Courtice Clarington →
Fireplaces in Orono Clarington →
Fireplaces in Port Perry Township of Scugog →
Fireplaces in Uxbridge Township of Uxbridge →
Fireplaces in Brock Township of Brock →

Ready to Book a Fireplace Repair or Installation?

Same-day service available across all of Durham Region. TSSA certified. Honest pricing. No surprises.