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Ottawa Insulation Experts: Attic, Spray Foam & Wall Insulation Installation and Upgrades in Ottawa

Ottawa Insulation Experts installs and upgrades attic, spray foam, blown-in and wall insulation for homes and commercial properties across Ottawa – assessed on site, quoted in writing, and installed to the R-60 code target. We know what -30 in January does to an under-insulated attic, and we match material and R-value to your home’s actual assembly.
Attic, wall, basement & mechanical insulation
Residential and commercial projects
Free, no-obligation on-site quotes

Get Your Free Insulation Quote

Tell us about the space and we will follow up to book a free on-site assessment.

What can we help with?

So the right crew reviews your project.

Phone line open 24/7. Form replies within one business day.

Why Ottawa Property Owners Work With Us

Six reasons homeowners and building managers keep calling us back.

Free On-Site Assessments

We look at the actual space before quoting instead of estimating over the phone.

Written Quotes Before Work Starts

You see the material, scope, and price in writing before you commit to anything.

Built for Ottawa Winters

R-value targets, air sealing, and vapour barriers chosen for a climate that swings from -30 to +30.

Residential & Light Commercial

We take on single-attic top-ups and larger commercial mechanical insulation jobs.

Straight Answers on Materials

We explain why a given material fits your assembly instead of defaulting to whatever is fastest.

Open 24/7

The phone line is answered around the clock, so call whenever it suits you.

Insulation Solutions

Insulation installed and upgraded across Ottawa

Ottawa Insulation Experts installs and upgrades insulation for homeowners and light commercial properties across Ottawa and the surrounding area, from a single attic top-up to a full building envelope. We handle attic insulation, spray foam, blown-in and batt insulation, basement and crawl space insulation, wall insulation, and mechanical and pipe insulation for commercial mechanical rooms. Every job starts with a free on-site assessment, not a phone-only estimate.

Why It Matters

Properly installed insulation makes the difference

Properly installed insulation is the difference between a house that fights an Ottawa winter and one that does not. It protects the building envelope, reduces the load on your furnace or heat pump, and stops the ice damming and cold spots that under-insulated attics cause. We walk you through what your property actually needs before you commit to anything.

Insulation Services for Ottawa Homes & Businesses

Attic to basement, residential and commercial – every service below is assessed on site and quoted in writing before work starts.

New or first-time attics

Attic Insulation Installation

Blown-in insulation installed to the R-60 code target for the Ottawa area.

Most requested service

Attic Top-Up & Upgrade

Depth measured on site, then topped up to target – the fastest payback in an older home.

Air seal + insulation in one

Spray Foam Insulation

Open-cell and closed-cell foam for rim joists, additions, and irregular assemblies.

Attics & closed cavities

Blown-In & Cellulose

Dense-pack loose fill that reaches where batts cannot, at the lowest cost per R.

Retrofit and new framing

Wall Insulation

Dense-pack or batt wall insulation for renovations, additions, and light commercial fit-outs.

Concrete walls done right

Basement Insulation

Rigid board or foam against the foundation plus a proper vapour barrier, so the space stays dry.

Cold-floor fix

Crawl Space Insulation

Sealed and insulated crawl spaces that stop cold floors and pipe-freeze risk above them.

Before a fresh install

Insulation Removal

Vacuum extraction of old, wet, pest-affected, or contaminated insulation.

Offices & light industrial

Commercial & Mechanical

Pipe, ductwork, and mechanical room insulation scoped to how the building operates.

How Much Does Insulation Cost in Ottawa?

Attic and spray foam pricing below is a typical per-square-foot range; every other service depends on scope and access, so we confirm exact pricing with a free on-site assessment rather than guessing over the phone. The main variables that move a quote are the R-value target, attic or wall condition, and how easy the space is to access.

Most popular

Attic Blown-In / Top-Up

$1.50-$3.00 per sq ft

Cellulose or fiberglass
Most common for existing homes
Covers a typical 1,000 sq ft attic at roughly $1,500-$3,000

Call for an Exact Quote

Spray Foam, Open-Cell

$2-$4 per sq ft

Air-seals and insulates in one step
Rim joists, additions, tight assemblies

Call for an Exact Quote

Spray Foam, Closed-Cell

$4-$7 per sq ft

Highest R-value per inch
Acts as its own vapour barrier
Best for limited cavity depth

Call for an Exact Quote
Our Process

How an Insulation Project Works With Us

1

Call or request a quote

Tell us what you are dealing with, room by room or the whole property. The line is open 24/7.

2

Free on-site assessment

We check current insulation depth, access, and problem areas in person.

3

Written quote

A clear quote naming the material, R-value target, and price before any work starts.

4

Install, inspect & walkthrough

We book a date that suits you, install to the quoted spec, then walk the finished work through with you.

Choosing the Right Insulation Material

The same materials show up across several of our services. Here is how we choose between them for an Ottawa property – and what each does best.

Blown-In & Batt Fibre Insulation

Dense-pack cellulose or fiberglass for attics and closed cavities; batts cut to fit standard framing. The workhorse for most homes.

Open-Cell & Closed-Cell Spray Foam

Expands to seal irregular gaps and rim joists; closed-cell doubles as its own vapour barrier.

Rigid Foam Board & Poly Vapour Barrier

Rigid foam against basement concrete plus a 6-mil poly vapour barrier keeps moisture out of the finished space.

Care & Maintenance

Keeping your insulation performing

Insulation is low-maintenance, not no-maintenance. Check attic depth after any renovation or electrical work, keep soffit and roof vents clear so the attic can breathe, and look for compressed or shifted material around hatches and pot lights. In basements and crawl spaces, watch for damp or discoloured insulation – it usually means a vapour barrier or drainage problem worth fixing early. A quick visual check each fall costs nothing and catches most problems before the heating season does.

Ottawa Home Problems We Fix

Ice damming and attic heat loss

The problem: ridges of ice at the eaves and icicles that come back every winter. Why it happens: warm indoor air escapes into an under-insulated attic, melts the roof snow, and the meltwater refreezes at the cold eaves. Signs to look for: icicles, uneven snow melt on the roof, and water stains on top-floor ceilings. The fix: air-seal the attic floor and top the insulation up to the R-60 target, which treats the cause rather than the symptom.

Ottawa Home Problems We Fix

Settled insulation in Ottawa's older housing stock

The problem: homes built before the 1980s across Ottawa often carry a fraction of the insulation the code now calls for. Why it happens: loose fill settles over decades, and early batts were thin to begin with. Signs to look for: rooms that never hold heat, high winter gas or hydro bills, and attic insulation sitting below the top of the joists. The fix: measure the current depth on site, remove material only if it is wet or contaminated, and dense-pack or top up to target.

Ottawa Home Problems We Fix

Basement and crawl space moisture

The problem: damp, musty basements and crawl spaces where insulation quietly fails. Why it happens: without a proper vapour barrier, humid indoor air reaches cold concrete and condenses inside the assembly. Signs to look for: musty smell, visible mold on framing or insulation, and batts that feel damp or look stained. The fix: remove the affected material, remediate any mold, then rebuild with rigid board or closed-cell foam and a sealed 6-mil poly vapour barrier so the moisture path is closed for good.

Service Areas Across Ottawa and the Surrounding Region

We work throughout the City of Ottawa, plus the nearby communities of Rockland and Embrun. One crew, one number, the whole region.

Kanata

Insulation for homes and light commercial space from Beaverbrook to Kanata Lakes.

Nepean

Insulation for homes and businesses along the Merivale Road corridor and beyond.

Orleans

Insulation for homes and businesses across the Orleans community, near Place d'Orleans.

Barrhaven

Insulation for homes and businesses from Old Barrhaven to Half Moon Bay.

Gloucester

Insulation for homes and businesses near Billings Bridge and South Keys.

Stittsville

Insulation for homes, heritage buildings, and businesses along Main Street.

Where to Find Us

We are based at 36 Antares Drive in Ottawa – office visits are by appointment only, and our crews come to you across the city. The phone line is open 24/7.

What Our Customers Say

5/5

The crew did an excellent job improving the insulation in our attic. They were punctual, courteous, and kept us informed throughout the project.

Robert K.

Client Direct

5/5

Very pleased with the service we received. Our home is more comfortable now, and the team made the entire process simple and straightforward.

Melissa P.

Client Direct

5/5

Ottawa Insulation Experts provided a clear assessment and completed the work efficiently. Everyone we dealt with was knowledgeable and professional.

Andrew C.

Client Direct

5/5

The installation was completed neatly and on time. The team treated our home with care and cleaned the work area before leaving.

Natalie G.

Client Direct

5/5

From the first call to the final inspection, the service was friendly and dependable. We are very satisfied with the completed insulation work.

David H.

Client Direct

Frequently Asked Questions

Do you offer free quotes?

Yes. We do a free on-site assessment and give you a written quote before any work starts, for both residential and commercial jobs.

How do I know how much insulation my attic needs?

Ontario's building code targets R-60 for attics in the Ottawa area. During the on-site assessment we measure your current depth and tell you exactly how much more you need to reach that target.

What is the difference between blown-in and spray foam insulation?

Blown-in cellulose or fiberglass fills open cavities like attics cost-effectively. Spray foam air-seals and insulates in one step, which matters more in rim joists and irregular gaps where blown-in cannot seal as well.

How long does a typical attic insulation job take?

Most single-family attic jobs are completed in a single day. Larger properties or combined attic-and-basement projects may take longer, which we will scope during the quote.

Do you remove old insulation before installing new?

When old insulation is wet, contaminated, or pest-affected, we remove it first. If it is simply thin but otherwise sound, we can usually top it up instead, which we will confirm during the assessment.

Can I get a rebate for insulation upgrades?

Rebate programs for insulation upgrades change over time and are typically administered through Enbridge Gas rather than the former federal Greener Homes Grant, which is now closed to new applicants. Ask us during your quote and we will tell you what is currently available.

When can I call you?

Anytime – the phone line at (343) 459-3623 is open 24/7. Visits to our office at 36 Antares Drive are by appointment only.

As Seen In

On August 31, 2026, national news and finance outlets carried a 2026 review of Ottawa insulation companies, covering how Ottawa Insulation Experts assesses an attic on site before quoting a price.

Business Insurance

Reported the assessment-first approach – current insulation depth measured on site, vapour barrier and assembly inspected, and the material named in writing before any price is quoted.

The Chronicle-Journal

Covered the R-60 attic target for Ottawa's climate zone and how much of the pre-1980s housing stock sits well below it, with loose fill settled under the top of the joists.

Observer-Reporter

Detailed the fix for ice damming – air-sealing the attic floor and topping insulation up to target, rather than treating the symptom at the roofline.

Also Carried By

Minyanville

minyanville.com

FinancialContent

financialcontent.com

Conversation Point

conversationpoint.com

Morning Release

morningrelease.com

OpenPR

openpr.com

Ready to Fix Your Insulation Before Winter?

Free on-site quotes across Ottawa and the surrounding area. One call gets your assessment booked – the line is answered around the clock.

Call (343) 459-3623 Email Us
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