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ECO-THERMA
Attic Insulation Top-Up
Improve year-round comfort, reduce heat loss and bring low, thin or uneven attic insulation closer to the recommended performance level with professionally installed blown-in fiberglass or cellulose.
Blown Fiberglass • Cellulose • R-Value Upgrades • Uneven Insulation Corrections
Signs Your Attic Insulation May Need an Upgrade
Upstairs Rooms Feel Too Hot or Cold
Rooms below the attic may feel excessively warm in summer or difficult to keep comfortable in winter when attic insulation is low, uneven or poorly distributed.
Low or Compressed Attic Insulation
​Existing insulation may settle, compress or become uneven over time, leaving thin areas that reduce the performance of the attic thermal barrier.
High Heating or Cooling Costs
​Inadequate attic insulation may allow more heat to escape during winter and enter during summer, increasing the workload on heating and cooling equipment.
Cold Ceilings or Drafts
Cold ceiling surfaces or drafts near attic access points, light fixtures and upper-floor rooms may be associated with low insulation or attic air leakage.
Uneven Indoor Temperatures
Noticeable temperature differences between floors or rooms may indicate low insulation levels, uneven coverage or air leakage near the attic.
Ice Dams, Icicles or Uneven Snow Melt
Large icicles, recurring ice dams or uneven snow melting on the roof may be associated with heat loss, low attic insulation, air leakage or ventilation concerns.
Low or uneven attic insulation can reduce comfort and energy performance. The right upgrade depends on the existing insulation depth, attic conditions, ventilation and project goals.
Blown Fiberglass Top-Up
Add professional blown-in fiberglass over suitable existing attic insulation to improve coverage, thermal performance and indoor comfort.
Low-Spot & Uneven-Area Correction
​Fill accessible low, thin or uneven insulation areas to support more consistent coverage and reduce weak points in the attic thermal barrier.
Cellulose Insulation Top-Up
Add blown-in cellulose over suitable existing insulation to increase attic R-value and improve coverage across accessible areas.
Attic R-Value Upgrades
Increase attic insulation from a lower existing level toward the approved target, such as R50, R60, R70 or R80, based on attic conditions and project goals.
Attic Insulation Top-Up Options
How an Attic Insulation Top-Up Works
An attic insulation top-up adds new loose-fill insulation over suitable existing insulation to increase thermal resistance and improve coverage. Before installation, Eco-Therma reviews accessible attic conditions, existing insulation depth, ventilation pathways and problem areas.
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Existing insulation does not always need to be removed. Removal may be recommended when insulation is wet, contaminated, mold-affected, pest-damaged, heavily compacted or unsuitable for covering.
A successful attic top-up depends on proper depth, even coverage and professional installation.
Why Attic Insulation Coverage Matters
Attic insulation works best when it forms a continuous and evenly distributed thermal barrier. Low spots, gaps, compressed areas and inconsistent depth can allow heat to move more easily through the ceiling below.
Installation Depth and Density Matter
Blown-in insulation must be installed to the appropriate settled depth and coverage for the approved R-value. Simply adding a few bags does not guarantee consistent performance across the attic.
Properly installed attic insulation should provide even coverage while preserving ventilation pathways and safe clearances around heat-producing components.
Is Your Attic Suitable for an Insulation Top-Up?
A top-up is generally suitable when the existing insulation is dry, accessible and in acceptable condition.
A Top-Up May Be Suitable When
✓ Existing insulation is dry and in acceptable condition
✓ Insulation levels are low, thin or uneven
✓ The attic and ventilation pathways are accessible
✓ No major contamination or widespread damage is present
Removal May Be Recommended When
× Insulation is wet, contaminated or mold-affected
× Rodent waste, pests or debris are present
× Insulation is heavily compacted or damaged
× Vermiculite or another suspect material is present
× Repairs below the insulation require clear access
Learn about attic insulation removal →
Our Attic Insulation Top-Up Process
1
Access and Review the Attic
Enter through the ceiling hatch and review existing conditions.
2
Confirm the Installation Scope
Confirm insulation depth, material and target R-value.
3
Prepare the Home and Attic Access
Protect the work path and bring the insulation hose inside.
4
Install the Blown-In Insulation
Distribute the insulation evenly throughout accessible attic areas.
5
Review and Clean the Work Area
Check the completed coverage and clean the access area.
Attic Insulation Top-Up FAQs
Related Services & Helpful Resources
Explore related attic services and helpful resources to better understand airflow, insulation, moisture and roof-performance concerns.
Related Services
Attic Insulation Removal
Remove damaged, contaminated, wet or unsuitable attic insulation before completing a new insulation installation.
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Attic Ventilation & Airflow
Improve soffit intake, baffles and roof exhaust to support balanced attic airflow.
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Attic Air Sealing
Reduce accessible air leakage around attic penetrations, fixtures and openings before insulation is added.
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Attic Mold Remediation
Professionally assess and treat mold-affected attic areas while addressing contributing moisture conditions.
Helpful Resources
→ What Causes Ice Dams and Icicles on a Roof?
→ Why Is There Mold in My Attic?
→ Why Is My Upstairs So Hot in Summer?
→ How Do I Know If My Attic Insulation Needs an Upgrade?
→ Why Is There Condensation in My Attic?
Multiple Locations across Ontario​
Main Office
325 Front Street W, 2nd Floor Office 2085A,
Toronto, Ontario M5V 2Y1
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Local 437-296-0116 | Toll Free 1-866-993-2080
Serving Toronto, the GTA & Surrounding Communities
Residential and commercial insulation, ventilation, mold remediation and building-performance services across Toronto, the GTA and surrounding Ontario Communities.