Top-Rated HVAC Contractor in Ottawa–Gatineau

1 Clean Air offers expert HVAC repair, installation, and maintenance across Ottawa–Gatineau. From air quality improvements to full system replacements, we provide reliable, energy-efficient solutions backed by certified technicians and outstanding service.

Do you need immediate assistance?

Our customer service team is available 24/7 to answer your questions and schedule a service.

613-707-2538

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📅 Book Your Service

Get started with a free HVAC estimate or inspection anywhere in Ottawa–Gatineau. Call us or book online — fast, easy, and commitment-free.

🔍 System Check & Recommendation

Our certified HVAC technicians thoroughly inspect your heating and cooling system, identify issues, and recommend the most efficient solutions for your comfort and savings.

🔧 Professional Installation & Repair

From repairs to full installations, our team delivers clean, precise, and reliable work — ensuring long-lasting performance and 100% satisfaction, every time.

HVAC Experts Since 1985

Over 40 years of experience making homes more efficient and comfortable. Thousands of satisfied customers across Ontario and Quebec.

Certified & Reliable Team

From estimate to installation, you’ll always work with the same trusted experts. No subcontractors — only trained, insured, and professional technicians.

Zero Stress: Fast, Clean & No Upfront Payment

Free estimate within 24 hours, installation in 48 hours, and no payments for 6 months. We handle everything — so you have nothing to worry about.

Professional HVAC Services

Comprehensive HVAC solutions to keep your home comfortable year-round. Our certified technicians deliver efficient heating and cooling with advanced systems designed for performance, reliability, and energy savings.

15 000+

Satisfied Customers

98%

Satisfaction Rate

40+

Years of Experience

HVAC Installation

Upgrade your comfort with professional HVAC installation. We set up energy-efficient systems that keep your home comfortable year-round.

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HVAC Repair

Fast, reliable repairs to restore your heating or cooling system. Our certified technicians fix all major brands with precision and care.

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HVAC Maintenance

Keep your system running smoothly and efficiently with regular maintenance. Prevent breakdowns and extend your HVAC’s lifespan.

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AC Installation

Stay cool and comfortable all summer with expert AC installation. We provide high-efficiency systems tailored to your home and budget.

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AC Repair

Fast, reliable air conditioning repair when you need it most. Our certified technicians fix all makes and models with precision and care.

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AC Maintenance

Extend your system’s lifespan and prevent costly breakdowns with routine AC maintenance. Enjoy consistent comfort and lower energy bills.

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Heat Pump Installation & Repair

Enjoy year-round comfort with energy-efficient heat pump systems. From new installations to expert repairs, we ensure reliable heating and cooling in every season.

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Furnace Installation & Repair

Keep your home cozy and efficient all winter long. Our certified technicians install and repair furnaces of all types, ensuring safe, dependable performance when temperatures drop.

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Ductwork & Replacement

Breathe easier with optimized airflow. We repair, replace, and install ductwork to improve your system’s efficiency, comfort, and indoor air quality—no leaks, no wasted energy.

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Certified Experts, No Subcontractors

Trust your comfort to real professionals.

Every installation, repair, or maintenance service is performed by our own certified HVAC technicians — never subcontractors. We take full responsibility for quality, safety, and precision, ensuring your system runs perfectly from day one.

Lower bills, higher comfort.

A modern HVAC system doesn’t just heat and cool — it saves you money. By upgrading to energy-efficient equipment, you’ll reduce wasted energy, improve performance, and enjoy steady comfort throughout the seasons.

Energy Efficiency that Pays for Itself

Fast, Clean, and Worry-Free Installation

Comfort restored in less than 48 hours.

We know your time matters. That’s why our team completes most installations within two days — keeping your home tidy and your schedule uninterrupted. Expect professionalism, punctuality, and a spotless finish every time.

Upgrade today, pay later.

Comfort shouldn’t wait. With 0% interest plans and flexible monthly options, you can enjoy a high-efficiency HVAC system now — without the upfront financial pressure. Start saving energy while spreading out payments with ease.

Flexible Financing, Zero Stress

1CleanAir

Others

In-house, OSHA & NFPA certified technicians,
no subcontractors.

Free estimates and inspections within 24 hours.

Full warranty on labor and materials.

Financing available with no upfront payment + help accessing rebates.

High-efficiency HVAC systems combined with Aeroseal technology for airtight performance.

Over 40 years of experience and 4,000+ positive reviews with a 4.8★ rating.

Chosen by thousands of homeowners

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What areas do you serve?

We proudly serve homeowners and businesses across Ottawa, Gatineau, and the surrounding regions. Our team also travels to nearby areas in Eastern Ontario and Western Quebec for larger projects or service contracts.

How often should I have my HVAC system maintained?

We recommend scheduling HVAC maintenance at least once a year — ideally in the spring for cooling systems and in the fall for heating. Regular maintenance helps improve efficiency, reduce energy costs, and extend the life of your equipment.

Do you offer emergency HVAC repairs?

Yes! 1 Clean Air provides 24/7 emergency HVAC repair services. Whether your furnace stops working in winter or your AC fails during a heatwave, our certified technicians are always ready to help — fast and reliably.

Can poor air quality affect my HVAC system?

Absolutely. Dust, allergens, and pollutants can clog filters, strain your HVAC components, and reduce system efficiency. Our duct cleaning and air quality improvement services help protect both your system and your health.

How can I improve energy efficiency in my home?

Upgrading to an energy-efficient HVAC system, sealing duct leaks, and maintaining proper insulation can significantly reduce your utility bills. 1 Clean Air also offers Aeroseal duct sealing and smart thermostat solutions to optimize performance year-round.

What brands do you install or service?

Our technicians work with all major HVAC brands, including Carrier, Lennox, Trane, Goodman, Bryant, and more. We can install, repair, or maintain any make or model to ensure reliable comfort in your home.

Do you offer financing or rebates?

Yes, we offer flexible financing plans with no upfront payment and help customers access available government rebates and energy-efficiency grants in Ontario and Quebec.

Service Areas

Large-scale projects? We travel anywhere across Canada.

Ottawa

343 rue Preston Ottawa, ON Canada K1S 1N4

Contact

819-803-3821

Gatineau

95 boul. de la technologie, suite 103, Gatineau, QC, J8Z 3G4

Contact

819-803-3821

Top-Rated HVAC Contractor in Ottawa–Gatineau

1 Clean Air offers expert HVAC repair, installation, and maintenance across Ottawa–Gatineau. From air quality improvements to full system replacements, we provide reliable, energy-efficient solutions backed by certified technicians and outstanding service.

Get your FREE
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