Calgary Attic Insulation — New Builds & Existing Homes
Attic insulation is the most accessible and impactful improvement you can make to your home’s energy performance. Unlike windows or HVAC systems, which require major investment for modest returns, upgrading your attic insulation delivers immediate, measurable results, lower heating bills, more consistent temperatures room to room, and a home that holds its warmth even when Alberta drops to –30°C.
At IDEAL, we’ve been upgrading attics in Calgary, Edmonton, and across Alberta for over 44 years. We work on everything from new construction projects where our drywall contractor network keeps us embedded in the city’s largest developments, to renovation upgrades in homes built in the 1970s and 80s that were insulated to standards that simply don’t hold up today. Our materials of choice include blown-in fiberglass (using Johns Manville Climate Pro), BIBS (Blown-In Blanket System), and closed-cell spray foam for vapour barrier remediation and air sealing. Every recommendation we make is based on what’s actually right for your attic — not what’s fastest for us to install.
Why Choose IDEAL for Your Attic Insulation?
For over 44 years, we’ve been one of Alberta’s most trusted names in insulation and roofing — and our attic insulation work is where that reputation is earned job by job. We don’t sub out our crews, we don’t cut corners on vapour barrier prep, and we don’t leave until the job meets our own standard, not just yours.
Attic Insulation Inspections & Assessments
Before we quote a single bag of insulation, we assess your attic thoroughly. Our estimators are former installers and crew leads — they’ve been in thousands of Alberta attics and know exactly what to look for.
You’ll receive a clear, itemized quote that explains exactly what’s being done and why. No vague line items, no surprise add-ons on installation day.
During the assessment we examine:
Attic Insulation Installation Process
Our goal is a clean, professional installation with minimal disruption to your home and family.
Is Your Attic Telling You Something?
Most homeowners don’t think about their attic until a problem shows up — and by then, it’s often been quietly costing them money for years.
Here are the most common signs that your attic insulation needs attention:
WE DON’T HAVE TO TELL YOU HOW GOOD WE ARE, OUR CUSTOMERS DO THAT FOR US.
“I had IDEAL come out to assess my attic after two winters of ridiculously high gas bills. Turns out I had less than R-20 and a vapour barrier that was basically falling apart. They removed the old insulation, sealed everything properly with spray foam, and blew it back up to R-60. The difference in the house is night and day. First winter after the upgrade my gas bill dropped by almost a third.”
Jason M.
Google Review — Attic Insulation Upgrade, Calgary
“IDEAL was incredibly professional from start to finish. The estimator actually got in the attic and showed me photos of the issues — ice dam damage I didn’t even know I had. The crew was clean, fast, and you would have never known they were there. The attic hatch is now properly insulated and sealed, which apparently was a major source of heat loss. Highly recommend.”
Patricia L.
Google Review — Attic Insulation & Air Sealing, Edmonton
“After getting three quotes, we went with IDEAL based on the recommendation of our contractor. Best decision we made on the build. The insulation crew knew the house, worked around our schedule, and left zero mess. R-60 fiberglass blown-in throughout. We’ve heard from the neighbours how warm the house feels and I’m not surprised — the attic is done right.”
Mark & Sandra T.
Google Review — New Construction Attic Insulation, Calgary
Attic Insulation — Frequently Asked Questions
Current Alberta Building Code recommends a minimum of R-50 for attic insulation in our climate zone, and many energy efficiency programs target R-60 or higher. Most homes built before 1990 fall well short of this — often in the R-12 to R-20 range. During your free assessment, we’ll measure your existing R-value and recommend the right target for your home.
Both are loose-fill products used for attic insulation. Fiberglass (like Johns Manville Climate Pro) is made from refined glass fibres — it’s formaldehyde-free, fire-resistant, mold-resistant, and won’t settle or lose R-value over time. Cellulose is made primarily from recycled newspaper and offers a slightly higher R-value per inch, but can retain moisture and may settle over time. Fiberglass is the more commonly used product in the Calgary and Edmonton market, and it’s what we typically recommend.
Not always. For most attic top-up projects — where the existing insulation is in reasonable condition — we can blow new insulation directly over the old material. However, if your vapour barrier is compromised, there’s moisture or mold damage, or the existing insulation contains contaminants, removal first is the right approach. We’ll assess and advise honestly during your free inspection.
Attic rain occurs when warm, humid air from inside the home escapes into a cold attic space and condenses — or freezes — on the roof deck and framing. When temperatures rise, the accumulated moisture ‘rains’ down, causing staining and potential mold or structural damage. Proper air sealing, vapour barrier repair, and adequate insulation work together to prevent attic rain. Ventilation also plays a key role. If you’ve experienced attic rain, we’ll assess all three factors and give you a comprehensive solution.
Yes — pot lights are one of the most common sources of air leakage in an attic. If you have pot lights and they are not I-C (Insulation Contact) rated, insulation cannot be placed directly over them. If you’re renovating or upgrading electrical, ensure your pot lights are I-C rated before insulation is installed. Our estimator will flag any pot light concerns during the assessment.
Most standard attic insulation upgrades — blown-in top-ups on homes up to 2,500 sq ft — are completed in 1 to 2 hours by our crew. Jobs involving insulation removal, vapour barrier repair, or spray foam air sealing take longer. We’ll give you a specific time estimate when we quote the job.
Yes. We have dedicated crews and offices in both Calgary and Edmonton, and have been serving homeowners and builders across both cities for over four decades.
Yes. IDEAL is an approved contractor under the Clean Energy Improvement Program (CEIP) — an Alberta government-backed program that allows eligible homeowners to finance energy efficiency upgrades at competitive rates, with repayment collected through your property tax bill. There’s no large upfront cost, no separate loan application, and the financing stays with the property if you sell. It’s one of the most practical ways to make an attic insulation upgrade affordable. Ask us about CEIP eligibility when you call for your free estimate.