Professional ductwork services across all Durham Region communities, from Oshawa to Port Perry. Whether you need new ductwork installation, repairs to existing ducts, or complete system replacement, David Cassar provides expert solutions with upfront pricing and TSSA-certified workmanship.
From new installations to emergency repairs, we handle every aspect of residential ductwork with professional expertise and honest pricing.
Complete ductwork installation for new construction, additions, or system upgrades. We design and install properly sized ducts that maximize your HVAC system’s efficiency and comfort throughout your home.
Professional repair of leaky, damaged, or disconnected ductwork. We locate problems quickly and provide lasting repairs that restore proper airflow and eliminate energy waste in your home.
Complete ductwork replacement when repair isn’t cost-effective. We remove old, inefficient ducts and install new systems designed to work perfectly with your furnace and air conditioning.
Regular ductwork inspection and maintenance to catch problems early. We check for leaks, clean accessible sections, and ensure connections are secure to maintain peak system performance.
Same-day emergency repairs for urgent ductwork problems affecting your heating or cooling. Available across all Durham Region communities when you need immediate professional assistance.
Upgrade to high-performance ductwork with better insulation, sealed connections, and optimized design. Improve comfort, reduce energy costs, and enhance your home’s air quality with professional installation.
Contact David at (416) 508-4585 or use our online booking form. We’ll schedule a convenient time for assessment and provide immediate guidance for urgent issues.
Complete ductwork inspection to identify problems and recommend solutions. You’ll receive upfront, honest pricing with no surprises — repair or replacement advice you can trust.
Professional installation or repair using quality materials and TSSA-certified expertise. We work efficiently and keep your home clean throughout the entire process.
Final system testing to ensure proper airflow and performance. Your ductwork is working efficiently, your home is comfortable, and you have peace of mind with our service guarantee.
When your home’s ductwork needs professional attention, you want service you can trust. Here’s why Durham Region homeowners choose Cassar Heating & Air Conditioning for their ductwork needs.
David Cassar founded Cassar Heating & Air Conditioning to provide Durham Region homeowners with honest, professional HVAC service they can trust. With TSSA certification and years of experience, David has built a reputation for straight talk, fair pricing, and quality workmanship.
Unlike large companies with sales quotas and pushy tactics, David focuses on what’s right for your home and budget. Whether you need a simple duct repair or complete system replacement, you’ll get honest advice and professional installation at a fair price.
From Oshawa to Port Perry, Whitby to Clarington, David serves all Durham Region communities with the same commitment to excellence and customer satisfaction that has earned 5-star reviews from happy homeowners across the region.
“David replaced our entire ductwork system and what a difference! Our heating bills dropped significantly and every room is now comfortable. Professional work, fair price, and he explained everything clearly. Highly recommended for ductwork in Durham Region.”
“Called David about cold spots in our house and he found several duct leaks that were wasting energy. Sealed everything properly and now our furnace doesn’t run constantly. Honest guy who knows his stuff and charges fair prices.”
“Emergency ductwork repair when our main trunk disconnected in the basement. David came same day, fixed it properly, and checked the rest of our ducts to prevent future issues. Great service when we needed it most.”
Common questions Durham Region homeowners ask about ductwork installation, repair, and replacement. Get the facts before you buy.
Several signs indicate it’s time for ductwork replacement: age over 15-20 years, visible damage or collapsed sections, rooms that never reach comfortable temperatures, and dramatically high energy bills despite proper HVAC maintenance. You might also notice excessive dust, musty odors, or hear rattling sounds from the ducts. If multiple repairs are needed or your ducts are undersized for current equipment, replacement often makes more financial sense than ongoing repairs.
Ductwork replacement typically ranges from $2,500-6,000+ for most homes, while new installation can range from $3,500-8,000+ depending on size and complexity. However, every job is different, and Cassar works with a wide range of budgets with financing available. Factors affecting cost include home size, accessibility, material choice, and system complexity. The best way to know what your specific job will cost is to get a free quote from David — no pressure, no obligation.
Absolutely. Leaky ductwork can increase your energy bills by 20-30% or more by forcing your furnace and air conditioner to work harder to maintain comfortable temperatures. When conditioned air escapes through gaps and holes, your system runs longer cycles and struggles to reach thermostat settings. Properly sealed ductwork ensures that heated or cooled air actually reaches your living spaces instead of being wasted in crawl spaces, basements, or attics.
Rigid metal ductwork is more durable, provides better airflow, and lasts longer but costs more to install and requires more complex routing. Flexible ductwork is less expensive, easier to install around obstacles, but can sag over time and restrict airflow if not properly supported. The best choice depends on your home’s layout, budget, and performance requirements. David will recommend the right combination for your specific situation and explain the pros and cons of each option.
If your ductwork is structurally sound but has leakage issues, professional sealing can be very cost-effective and improve efficiency significantly. However, if ducts are damaged, undersized, improperly routed, or causing ongoing comfort problems, replacement is usually the better long-term investment. Age also matters — ducts over 20 years old often have multiple issues that make replacement more economical than extensive repairs and sealing.
Well-installed ductwork typically lasts 15-25 years in Ontario’s climate, though this varies significantly based on material quality, installation practices, and maintenance. Flexible ductwork may need replacement sooner than rigid metal ducts, especially if it wasn’t properly supported during installation. Regular maintenance and prompt repair of minor issues can extend ductwork life, while poor installation or neglect can shorten it considerably.
Yes, new ductwork can significantly improve indoor air quality by eliminating dust accumulation in old, leaky ducts and ensuring proper airflow for your filtration system. Old ductwork often harbors dust, allergens, and sometimes mold, while new systems provide clean pathways for conditioned air. Properly designed ductwork also ensures adequate ventilation and allows your HVAC system’s filtration to work effectively throughout your home.
Proper ductwork maintenance throughout the seasons helps prevent problems and ensures peak performance when you need it most.
Schedule ductwork inspection before heating season begins. Check accessible ducts for damage, ensure vents aren’t blocked by furniture or debris, and have any leaks sealed before your furnace starts working harder. Fall is also ideal for ductwork replacement projects before winter weather arrives.
Watch for warning signs like uneven heating, cold spots, or unusually high energy bills that could indicate duct problems. Check that vents remain unobstructed and listen for unusual sounds from the ductwork when your furnace runs. Emergency duct repair is available when heating problems can’t wait until spring.
Spring is the ideal time for major ductwork replacement or upgrades before air conditioning season begins. Mild weather makes installation more comfortable, and you’ll have efficient ducts ready for summer cooling needs. Schedule comprehensive ductwork assessment to plan any necessary improvements.
Monitor air conditioning performance for signs of duct problems like weak airflow or rooms that won’t cool properly. Summer is also excellent for preventive ductwork maintenance and repairs since heating isn’t critical. Take advantage of the off-season for non-emergency ductwork improvements at potentially better scheduling.
Professional ductwork installation, repair, and replacement services available in all Durham Region communities. Click your area for local information and service details.
Complete HVAC solutions for Durham Region homes.
Same-day service available across all of Durham Region. TSSA certified. Honest pricing. No surprises.
