Proudly recommended by over 3,000 owners in Canada

Residential & Commercial Insulation Experts

Protect your home from the cold, energy losses, and high bills.
  • Quote in 24 hours
  • Installation in 48 hours
  • No payment for up to 6 months
Licensed & insured
Without immediate payment
Reviews 4.8/5
A personalized quote
Under 24 hours
Free inspection
At home
Expert advice
personalized
Get Your FREE Estimate Now!
Guaranteed Response Within 24Hrs
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Why do 15,000 owners trust us?

Complete solutions to improve the air quality in your home.
40 years
Insulation experts since 1985
15,000+
Thousands of satisfied customers in Ontario and Quebec.
25 years
Material warranty
30% savings
Average reduction in energy bills

Before / After: The Proof Is in the Results

Proper insulation changes everything. Less heat loss, more comfort — the difference is visible and long-lasting.
Poorly Insulated Attic
Uncovered areas and ineffective insulation cause your home to lose heat and waste energy.
Before
Properly Insulated Attic
A uniform layer of high-performance insulation provides immediate comfort and long-term energy savings.
After

Insulating your attic is not a luxury,  it is a necessity.

Investing in quality insulation improves the comfort and value of your home.
See Where Your Home Is Losing Money
Our thermal imaging precisely detects where heat escapes and where energy is being wasted.
Lower your energy bills
A well-insulated house consumes less heat or air conditioning.
Improve your comfort all year round
More stable temperature, fewer drafts, pleasant atmosphere in all seasons.
Eco-responsible choice
Reduce your carbon footprint by limiting overconsumption of energy.
Value your property
Energy-efficient homes are more sought after and are better priced at resale.
Enjoy a quieter interior
The insulation attenuates outside noise for a more serene environment.
Prevent humidity and mildew
A well-protected thermal envelope limits infiltration and invisible damage.

A simple 4-step process

We make insulating your home simple, effective, and hassle-free.
1
Free consultation
Schedule a home visit to assess your insulation needs.
2
Detailed quote
Receive a clear and complete quote, including estimated energy savings.
3
Professional installation
Our certified technicians carry out the work quickly and cleanly.
4
Final inspection
We check the quality of the work and ensure your complete satisfaction.

Trusted by Thousands of Homeowners

Our customers say it best.
Season End Special Offer

Save 10% on if you book now!

Free inspection
No-obligation quote
Improve your home comfort and reduce energy bills with high-performance attic insulation. Installation completed by certified experts using premium materials.
10%
Discount
Offer valid until August 31, 2026
Limited spots available — book quickly
ENERGY SAVINGS CALCULATOR

See how much you could save with better insulation

Select the area and your current insulation level to see the recommended level and estimated energy savings potential.

Recommended level R-60
Estimated savings 25%
Upgrading your attic insulation from R-12 to R-60 could improve energy efficiency by about 25%.
Attic insulation measurement

Start Saving Your Money Today!

Fill out the form and one of our insulation experts will contact you within 24 hours to schedule a free in-home evaluation.
No-Obligation Evaluation
Our expert will assess your home's insulation needs with no pressure.
Transparent Pricing
Receive a detailed quote with all costs clearly explained. No hidden fees.
Flexible Financing Available
Ask about our 0% financing options and government rebate programs.
Need immediate assistance?
613-801-5922

Frequently Ask Questions (FAQ)

Why Trust Us?
How can I tell if my attic needs insulation?

Several warning signs appear frequently: cold rooms in winter, overheating in summer, energy bills rising for no clear reason, drafts near ceilings, and persistent humidity. Proper insulation helps eliminate these problems and can significantly reduce heating and cooling costs.

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

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

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

Yes. Our Insulation & Vermiculite Removal service includes the safe removal of existing materials, even if they may contain asbestos. Our team uses proper equipment including industrial vacuums, respiratory protection, and sealed bags. We also inspect and repair the attic before installing the new insulation. The worksite is left clean and compliant with OSHA/NFPA standards.

What is your process and what warranty do you offer?

1) Free inspection and estimate.
2) Removal or installation of insulation in 1–2 days.
3) Complete cleanup.

We also provide a written “unparalleled warranty” covering all work performed. No subcontractors are used—only certified technicians from our team.

What financial incentives are available for insulation projects?

1CleanAir helps homeowners access the Canada Greener Homes Grant program, which can reimburse up to $5,000 for insulation upgrades or replacements. Financing options are also available if you prefer to spread the cost over time.

Can insulation really reduce my energy bills?

Yes. A properly insulated attic can reduce annual energy costs by up to 40% while also reducing the workload on your HVAC system.

What signs show that my attic is under-insulated?

Large temperature differences between rooms, drafts near vents or ceilings, rising heating bills, or visible attic framing through the insulation can indicate insufficient insulation coverage.

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

Cold insulation: insulation is installed on the attic floor. The attic remains close to outside temperature, which is ideal when the attic is not used as living space.Warm insulation: insulation is installed under the roof. The attic becomes part of the heated space, ideal if you plan to convert it or want to prevent ice dam formation.