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Experts in Residential & Commercial Insulation


With proper insulation, your home stays comfortable all year — and you pay less.

  • Insulation completed in less than 48 hours
  • Financing and grants available
  • No payments for the first 6 months
Do you need immediate assistance?
Our customer service team is available 24/7 to answer your questions and schedule a service.
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Why thousands of households
trust us?

Peace of mind, durability, and elegance — that’s what we guarantee.

Insulation experts since 1985

Over 35 years of experience making homes more efficient and comfortable. Thousands of satisfied customers across Ontario and Quebec.

Certified and reliable team

From the quote to the installation, the same trusted experts handle your project. No subcontractors. Trained, insured, and professional technicians.

Zero stress: fast, clean, and no upfront payment

Quote within 24 hours, installation within 48 hours, and no payments for 6 months. We handle everything — you don’t have to lift a finger.

Who are we?

A team trusted by over 4,000 satisfied customers.

Professional Air Quality Services

Comprehensive solutions to improve your home’s air quality. Our certified technicians use advanced equipment to ensure cleaner, healthier air.

15 000+

Satisfied Clients

98%

Satisfaction Rate

40+

Years of Experience
Insulation
Improve your home’s comfort and energy efficiency with quality insulation. Less heat loss, more savings.
Air Duct Cleaning
Remove dust, allergens, and contaminants from your air ducts to improve air quality and system efficiency.
Dryer Vent Cleaning
Improve your dryer’s performance and reduce your energy consumption. A simple and safe service.

Insulating your attic isn’t a luxury,
it’s a necessity

No subcontracting

Heat rises… and escapes through the attic.

In most homes, the attic is the main source of heat loss

In winter, warm air naturally rises and escapes if it’s not properly contained by effective insulation.

In summer, it’s the opposite — the attic acts like a hot plate, overheating the upper floors.If you feel too warm in the living room, too cold in the bedroom, or your energy bills are rising for no reason… it’s probably your attic.

You’re paying for energy you’re losing

Heating or cooling a poorly insulated home is like filling a bathtub with the drain open.

No matter how powerful your systems are, the heat escapes — and who pays for it? You do.

Good insulation acts like a thermal lid that keeps the warmth inside during winter and the heat outside during summer.

Fast & clean installation
Insulation in less than 48 hours

It’s not a luxury — it’s essential protection

Many people think insulation is an “extra.” It’s not.

It’s a fundamental element for your home’s comfort, durability, and performance.

It protects your walls, ceilings, ducts… and your wallet.
Proper insulation also prevents mold, condensation, and costly damage.

And for resale? A real advantage

Today’s buyers are looking for efficient, well-maintained homes.

Good insulation is a real asset during an inspection or sale.
It shows that the home has been properly cared for — and that it will cost less to live in.

Financing available

What sets us apart

1CleanAir
Others
Internal, OSHA & NFPA-certified technicians — no subcontracting.
Free quote and inspection within 24 hours.
Full warranty on labor and materials.
Financing available with no upfront payment + direct support to access grants.
High-performance blown insulation combined with Aeroseal technology to seal air leaks.
Over 40 years of experience and 4,000+ positive reviews with a 4.8-star rating.

Chosen by thousands of homeowners

Wondering if your home is properly insulated?

Take action now. Request your free quote.

Get a Free Estimate

Frequently Asked Questions (FAQ)

Why trust us?

How do I know if my attic needs insulation?

Several warning signs often appear: cold rooms in winter or overheated ones in summer, energy bills that rise for no reason, drafts near the ceilings, and persistent humidity. Effective insulation immediately reduces these issues and lowers heating and cooling costs.

How does insulation prevent ice dams and extend the life of the roof?

By limiting the heat that escapes toward the roof, insulation keeps the shingles cooler: the snow melts less, water doesn’t refreeze in the gutters, and both your shingles and gutters last longer.

What type of insulation do you install, and why choose blown-in insulation?

1CleanAir primarily offers blown-in insulation using cellulose or fiberglass. Injected under pressure, it fills every corner of the attic, seals air leaks, and creates a continuous thermal barrier — ideal for irregular spaces. It installs quickly, provides excellent performance for its cost, and can reduce energy bills by up to 30%.

What types of insulation does 1CleanAir offer?

  • Spray foam (air and vapor barrier)
  • Loose-fill cellulose or fiberglass (ideal for irregular attics, can be layered)
  • Hybrid systems (spray foam + loose-fill)
  • Batts & rolls (mineral wool, natural fiber)

The choice depends on your home’s layout and your energy efficiency goals.

Can you safely remove my old insulation (vermiculite, contaminated wool, etc.)?

Yes. The Insulation & Vermiculite Removal service includes the safe removal of existing materials, even those containing asbestos.The team uses the proper equipment — industrial vacuums, respiratory protection, and sealed disposal bags — and identifies any necessary repairs before installing the new insulation.The site is left clean and compliant with OSHA/NFPA standards.

What is your process and what warranty do you offer?

  • Free inspection and estimate
  • Insulation removal or installation in 1–2 days
  • Nettoyage Complete cleaning
  • Written “unparalleled warranty” covering all work

No subcontracting: only their certified technicians perform the work.

What financial assistance can I get for my insulation project?

1CleanAir guides you through the Canada Greener Homes Grant program, which can reimburse up to $5,000 for replacing or adding insulation.The company also offers in-house “Financing Available” options, allowing you to spread out the cost if you prefer to start without immediate funds.

Can insulation really reduce my bills?

Yes: a properly insulated attic can reduce annual energy costs by up to 40% while easing the load on your HVAC system.

Cold vs. warm insulation: what’s the difference for my attic?

Cold insulation: the insulating material is installed on the attic floor; the attic remains at outdoor temperature — ideal if you don’t live in it.Warm insulation: the insulation is applied under the roof; the attic becomes part of the heated space — perfect if you’re converting it into a living area or want to prevent ice dams.

What are the signs that my attic is under-insulated?

Temperature variations from one room to another, drafts near vents, rising heating bills, or visible attic framing through the insulation — these signs indicate insufficient coverage.

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