Warm Your Home from the Top Down

Up to 30% of your home’s heat is lost through the roof. Loft insulation is a fast, affordable upgrade that locks in warmth and slashes heating costs — with minimal disruption.

What is Loft Insulation?

Loft (or attic) insulation involves installing layers of insulating material in your roof space to stop heat rising and escaping.

We offer cold Loft Insulation (insulating the attic floor).

Key Benefits of Loft Insulation?

Improved Thermal Comfort
Reduced heat loss = warmer rooms below
Lower Heating Bills
Save up to 25% on annual energy costs
Fast & Non-Disruptive Installation
A BlueBuild project manager conducting a home consultation with residential clients.

Is My Home Suitable?

  • Homes with pitched roofs and uninsulated or poorly insulated attics
  • Attics with access via hatch or stairs
  • Homes experiencing uneven heat distribution or cold ceilings
  • Homes with unoccupied & unheated attic spaces.

We’ll assess your attic space during our free survey and recommend the best insulation method for your layout and budget.

An insulation installer wearing a protective dust mask and headlamp kneeling inside a residential attic spaces to unroll a bundle of mineral wool insulation between wooden roof rafters.

What’s Included in Our Service

  • Insulation of attic floor to SEAI specification (typically 300mm)
  • Ventilation upgrades to prevent condensation build-up
  • Water tank and pipe lagging for freeze protection
  • Insulated and draught-proofed attic hatch
  • Optional attic flooring over insulated areas for storage
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Northern Ireland Grants for Loft Insulation

Homeowners in Northern Ireland may be eligible for support through a range of government-backed energy efficiency schemes — helping to reduce or even fully cover the cost of installation.

Available support can include:

  • NISEP (Northern Ireland Sustainable Energy Programme) – including fully funded options for eligible households
  • Affordable Warmth Scheme for lower-income homes
  • Potential support through local council or energy supplier initiatives

Our team will:

  • Assess your eligibility during your free survey
  • Guide you through the most suitable funding options
  • Handle the application process where applicable

👉 Find out if you qualify for fully funded loft insulation on our Residential Grants page.

Our 4-Step Installation Process

1
1
Free Attic Survey

We check your current insulation and ventilation

2
2
Tailored Insulation Proposal
3
3
Professional Installation

 in 1 day or less

4
4
Final Check & BER Upgrade

Frequently Asked Questions on Insulation for your home

We’ve answered some common questions to help you with any concerns

We use mineral wool or glass wool, compliant with SEAI standards and safe for Irish homes.

Yes — we can install raised flooring sections on top of the insulation so you don’t lose usable space.

Absolutely. If your existing insulation is less than 300mm thick, we can add to it to meet current standards.

Most loft insulation jobs are completed in less than a day.

Hear from Our Customers

Google Reviews
Rated 4.6 out of 5 stars on over 100+ reviews

Keep the Heat Where It Belongs — In Your Home

Our team can help you access SEAI grants, choose the best insulation method, and install  everything in one clean, professional visit.

  • • IAA -Registered Contractor
  • • Fully Qualified Installers
  • • 13+ Years’ Experience
  • • Satisfaction Guarantee