Average Cost of Attic Insulation

The cost of attic insulation depends on the insulation type, home size, and installation method. Below is a general price range for a three-bedroom semi-detached home:

• Fibreglass or Mineral Wool: €1,500 - €3,000
• Spray Foam Insulation: €2,500 - €5,000
• Rigid Board Insulation: €3,000 - €6,000
• Blown Cellulose Insulation: €1,800 - €3,500

Factors Affecting Attic Insulation Costs

• Type of Insulation: Fibreglass and blown cellulose are more affordable, while spray foam and rigid board insulation offer superior performance.
• Attic Size & Accessibility: Larger attics or those with limited access may require more labour, increasing costs.
• Depth of Insulation: Standard depth for optimal performance is 300mm, and additional layers may be needed.
• Existing Condition: If old insulation needs removal or if there are damp issues, costs will rise.
• Labour & Installation: Professional installation ensures the best results and compliance with building regulations.

SEAI Grants for Attic Insulation

The Sustainable Energy Authority of Ireland (SEAI) offers grants to help homeowners reduce insulation costs:

• Up to €1,500 for attic insulation
• Available for both detached and semi-detached homes
• Must be completed by an SEAI-registered contractor

These grants significantly reduce the upfront cost of upgrading attic insulation.

Benefits of Attic Insulation

• Lower Energy Bills: Reduce heating costs by up to 30%
• Increased Comfort: No more cold draughts or heat loss
• Better BER Rating: Improves your home's value and energy efficiency
• Eco-Friendly: Reduces carbon footprint and reliance on fossil fuels

Why Choose BAYT for Attic Insulation?

• SEAI-Registered Installers
• High-Performance Insulation Solutions
• Affordable Pricing & Grant Assistance
• Fast & Efficient Installation