Blown-In Insulation Services in the Lower Mainland, BC
Blown-in insulation is loose-fill fibreglass blown into attics and wall cavities with a machine, so it fills around joists, wiring and corners that batts leave open. Western Insulation installs it across Langley, Metro Vancouver and the Fraser Valley, usually in one day, with rebate-ready paperwork.
One Continuous Layer, No Gaps
Gaps are where insulation fails. Blown-in fibreglass settles into every space between joists and around obstacles, giving an even layer at the depth you choose.
Fills irregular spaces
Fast top-ups over existing insulation
Easy to reach R-50 and above
Why Blown-In Insulation Works So Well in Attics
Covers what batts miss
Joists, truss webs, wiring and blocking all leave gaps in batts; loose fill flows around them.
Tops up without removal
If your old insulation is dry and clean, we blow new insulation right over it.
Quick installs
Most attics are done in one day from a hose run through the hatch.
Rebate eligible
Attic top-ups earn $0.02 × R × sq ft from BC Hydro, up to $900.
Blown-In Insulation Options
We utilize industry-leading blow in insulation products that deliver optimal R-value protection for homes throughout the Lower Mainland, Metro Vancouver & Fraser Valley regions.
Insulation Options
Blown-in fibreglass
Lightweight, non-combustible and resistant to moisture and mould growth. We use Owens Corning ProPink loose-fill for most attic work.
Blown-in cellulose
Made from recycled paper treated with fire retardant; denser than fibreglass and good for sound.
Blown-In vs Batt Insulation
Blown-in (loose fill) | Batts | |
Coverage | Fills around obstacles in one continuous layer | Must be cut to fit; gaps are common |
Attic top-ups | Ideal – blown over existing insulation | Awkward over uneven old insulation |
Speed | Most attics in one day | Slower in attics |
Need batts for a renovation? See batt insulation.
Why Homeowners Choose Western Insulation for Blown-In Insulation
Established 1998 and based in Langley Township – local crews who know Lower Mainland homes
In-house installation crews
Rebate-ready invoices showing area, R-value before and after, and insulation type
Workmanship warranty
Before-and-after photos of the finished work
Free written quote
What Our Customers Say
Blown-In Insulation Rebates (HPCN Contractor Required)
Take advantage of substantial incentives through BC Hydro and FortisBC energy efficiency programs. Our team streamlines the application process to maximize your eligible savings.
Current BC Rebates Include
Attic: $0.02 × R-value added × sq ft, up to $900 (replaces 'Up to $1,200')
Exterior wall cavities: $0.09 × R × sq ft, up to $1,200
Bonus of up to $2,000 for completing more than one upgrade
DIY insulation is not eligible. Full details on our rebates page.
Related Services
Blown-in projects are often paired with attic insulation, ProPink insulation and whole-home insulation upgrades, for a complete upgrade from the top of the house down.
Blown-In Insulation Across Langley, Metro Vancouver and the Fraser Valley
Our crews are based in Langley Township and do most blown-in insulation work in Langley, Surrey, White Rock, Aldergrove, Abbotsford and Maple Ridge, with regular projects across the rest of Metro Vancouver and the Fraser Valley.
Reviews and Accreditation
Book a Free Blown-In Insulation Quote
We’ll measure your current depth, recommend a target R-value and show you the rebate it should earn.
Frequently Asked Questions
What is blown-in insulation?
Blown-in insulation, also called loose-fill, is fibreglass or cellulose in small pieces that a machine blows through a hose into attics or wall cavities. It settles into an even, continuous layer around joists, wiring and other obstacles, so it leaves fewer gaps than batts. It is the most common way to top up an attic.
How deep should blown-in insulation be in an attic?
For R-50, blown-in fibreglass is usually about 16 to 20 inches deep, depending on the product; cellulose needs a little less depth. We set depth rulers in the attic so you can check the finished level, and the bag count on your invoice confirms the R-value installed.
Can blown-in insulation go over old insulation?
Yes, if the existing insulation is dry, clean and free of mould and rodent waste. We blow new fibreglass right over it to reach the target R-value. Wet, contaminated or vermiculite insulation must be dealt with first, and vermiculite must be tested for asbestos before anyone disturbs it.
How long does blown-in insulation take to install?
Most attic top-ups take one day, including baffles, air sealing around the hatch and clean-up. Very large attics, difficult access or jobs that begin with removing old insulation can take two days. You can usually stay home the whole time.
Does blown-in insulation qualify for rebates?
Yes. Installed by an HPCN contractor, blown-in attic insulation earns $0.02 × R-value added × sq ft from the BC Hydro and FortisBC Home Renovation Rebate, up to $900. Exterior wall cavities earn $0.09 × R × sq ft, up to $1,200. DIY installs are not eligible.
