Preventing Breakdowns Before They Happen
From freezing winters to hot summer days, DeMarco Mechanical Services keeps your HVAC systems running strong exactly when you need them most. With licensed experts, proactive annual inspections, and precision boiler installations, we help prevent costly breakdowns before they start. As units age, our preventative care makes sure you’re never left waiting on a furnace part in the middle of -25 °C weather. Count on lasting performance, safe operation, and year-round comfort without the stress.
Complete HVAC Services
Heating Services
Stay warm with efficient heating solutions tailored to your space. We handle installations, HVAC repairs, and replacements of furnaces, boilers, heat pumps, and hydronic systems keeping comfort consistent all winter long.
Cooling Services
When the heat rises, our cooling services bring instant relief. From central AC to ductless systems and heat pumps, we install and maintain cooling solutions built for Toronto’s summer demands.
Indoor Air Quality
Breathe better with advanced air purification systems. Our services include medical grade air purifiers, humidifiers, and complete IAQ setups to reduce allergens, pollutants, and dryness in your home.
Gas Line Services
From new installations to urgent repairs, our certified team ensures your gas system runs safely and smoothly. Trust us for secure setups and timely replacements, all done to code.
Air Conditioner Installation
Upgrade your cooling with our expert AC installation services. We offer energy-efficient systems, custom sizing, and seamless setups ensuring comfort, value, and long-term performance.
Air Conditioner Repair
Get fast, dependable AC repairs when you need them most. We diagnose and fix issues quickly, restoring cool air and peace of mind without the wait.
Comfort That Goes the Distance
Built to Last
Enjoy long lasting comfort with systems designed for durability, minimal issues, and year-round efficiency.
Owner Operated Reliability
Work directly with a trusted expert who delivers fast, reliable solutions tailored to your home.
Personalized Service That Listens
Your needs matter. Get hands on support from someone who understands and cares about your comfort.
Worry Free Maintenance
Stay ahead of costly repairs with proactive, stress free maintenance that keeps your system running strong.
Heating Services
Whether it's a new installation or proactive maintenance, we tailor every service to match your unique comfort needs. Say goodbye to the cold and hello to consistent, worry-free warmth.
Built for Canadian Winters
Our products are designed for maximum efficiency and long-term performance.
Gas Furnace: Efficient heating to keep your home consistently warm.
Heat Pump: All in one system offering both heating and cooling.
Condensing Boiler: Energy solution that lowers utility costs.
Water Heater: Reliable supply of hot water for everyday comfort.
Full Scope Furnace Services
We handle everything from first-time installations to fast repairs.
Furnace Installation: Seamless setup for dependable winter comfort.
Furnace Repair: Quick, professional repairs to restore heat fast.
Furnace Replacement: Upgrade to modern systems for better efficiency.
Boiler and Water Heating Services
Trusted service for essential heating systems in every home.
Boiler Installation: Precision installs built for long-term performance.
Boiler Service: Preventative maintenance to avoid costly repairs.
Boiler Replacement: Safe, expert upgrades when it’s time to switch.
Hydronic Heating System: Energy efficient, quiet warmth with full-home coverage.
Water Heater Services: Installation, repair, and maintenance all under one roof.
Radiant Floor Heating
Even heating that feels great from the ground up.
Radiant Floor Heating: Delivers gentle, consistent heat across your space.
Cooling Services
Whether you're installing a new unit, replacing an outdated system, or fixing a faulty one our cooling services are built to keep your space comfortable and your energy bills in check. Stay cool. Stay stress-free.
Cooling Systems Built for Every Home
Central Air Conditioner: Powerful and reliable cooling for consistent indoor temperatures.
Ductless Mini Split: Zoned comfort and modern design with no ductwork required.
Heat Pump: Dual purpose system offering both efficient cooling and heating.
Smart Thermostats: Advanced control options to help manage comfort and energy usage.
Full Service Air Conditioning Support
From expert installations to fast response repairs, we handle it all from start to finish.
Air Conditioner Installation: Seamless setup of high-performance systems that match your space and cooling needs.
Air Conditioner Repair: Quick diagnostics and repairs to get your AC running smoothly again.
Air Conditioner Replacement: Energy efficient upgrades with long-term savings and improved performance.
Ductless Air Conditioning Solutions
Flexible, efficient, and ideal for homes without ductwork.
Ductless Installation: Clean, fast installations that bring comfort to every room.
Zoned Comfort: Individual temperature control to reduce energy waste and increase satisfaction.
Low-Impact Design: Modern, quiet, and compact units that blend into your space.
Maintenance and Efficiency Plans
Protect your system and avoid costly breakdowns with preventative care.
AC Tune Ups: Seasonal checkups to keep your system running at peak performance.
Filter Changes & Cleaning: Improve indoor air quality and airflow.
System Inspections: Catch issues early and avoid unexpected repairs.
What Sets Us Apart
Solutions built around your lifestyle and budget.
High efficiency equipment from trusted brands.
Licensed technicians delivering quality you can count on.
Transparent pricing, prompt scheduling, and no surprises.
Ongoing support long after installation.
Indoor Air Quality Services
DeMarco Mechanical Services brings you smart indoor air quality solutions that protect your health and enhance your comfort. Whether it's allergens, dry air, or hidden pollutants we install systems that make your air noticeably fresher and safer.
Clean Air Solutions We Offer
Medical Grade Air Purifiers
Remove dust, allergens, bacteria, and harmful particles with high efficiency purifiers designed to improve the air you breathe every day.
Whole-Home Air Purification Systems
Combat odours, airborne contaminants, and indoor toxins with powerful purification systems tailored to your home or office.
Humidifier Installation
Say goodbye to dry air, irritated skin, and static. Our humidifiers restore ideal moisture levels for a more comfortable and healthier space.
Why Indoor Air Quality Matters
Supports better breathing, sleep, and focus.
Reduces allergy and asthma triggers.
Protects your furniture, floors, and overall indoor comfort.
Gas Line Services
A reliable gas system is essential for daily comfort and peace of mind. At DeMarco Mechanical Services, we offer expert gas line solutions that prioritize your safety and efficiency. Whether you're installing new lines, fixing an issue, or upgrading an aging setup, we’ve got you covered.
Expert Care for Your Systems
Installation
We handle everything from new setups to system expansions. Our team ensures your installation is seamless, safe, and suited to your exact needs.
Repairs
Do you have a concern with your gas line? We act fast. Our licensed technicians quickly identify and resolve issues so your system stays secure and running smoothly.
Replacement
If your gas lines are outdated or showing signs of wear, we offer reliable replacement services that bring your system up to modern safety and energy standards.
Air Conditioner Repair
Quick, efficient, and affordable AC repairs that keep your space cool and stress free.
Same-Day Service Options: Fast response times for urgent cooling issues.
Detailed Diagnostics: Pinpoint problems with precision for targeted repairs.
Certified Technicians: Skilled experts trained in the latest HVAC repair standards.
Transparent Pricing: No hidden costs just honest service and clear quotes.
Residential & Commercial Repairs: Tailored solutions for all property types.
Economical Solutions: Competitive pricing on repair parts through trusted distributor partnerships.
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Repair Process
Comprehensive System Assessment: Identify the root cause before any repairs begin.
Clear Repair Options: We explain the issue and walk you through the solution no guesswork.
High Quality Repairs: Replacement of worn components, coil cleaning, refrigerant checks, and more.
Efficiency First Approach: Repairs that boost system performance and prevent future breakdowns.
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Why It Matters
Improved Cooling Efficiency: Get your AC working better, faster, and for longer.
Enhanced Air Quality: Clean components mean healthier indoor air.
Lower Energy Bills: Efficient operation equals reduced power consumption.
System Longevity: Protect your investment and extend your AC’s lifespan.
Air Conditioner Installation
We offer expert AC installation that brings dependable comfort, energy savings, and stress-free performance—tailored to your space, budget, and cooling needs.
Tailored Installations: Every space is unique, and so are our cooling solutions.
Certified Technicians: Skilled professionals ensure safe, efficient, and code compliant installations.
Energy Smart Options: We help you select systems that offer optimal performance with energy savings.
Better Value: Our partnerships with top distributors give you access to high quality systems at competitive pricing.
Fast Turnarounds: We coordinate installations to minimize disruption and get you cool fast.
Seamless System Integration: From thermostats to ductwork, every element works together perfectly.
Post-Install Walkthrough: Learn how to use and maintain your new AC with full guidance from our pros.
Clean, Precise Setup: No mess, no guesswork just smooth, professional installation.
Step-by-Step Installation Process
Initial Assessment
We evaluate your home’s size, insulation, and ventilation.
Customized Recommendation
Based on your comfort goals, we suggest the best-fit unit.
Installation Day
Our technicians arrive equipped and ready to get your system up and running.
Final Testing
We check thermostat settings, airflow, and system performance.
Client Walkthrough
You’ll get a full tour of your new system, including maintenance tips.
Connect For Expert Advice
If you're unsure whether it's time for a new installation, routine service, or an emergency repair, a quick conversation can offer the clarity you're looking for. Share your situation with a skilled technician and take the guesswork out of your next step.