Insulate Your Home. Save Energy. Live Better.

BlueBuild Insulation has been helping Irish homeowners cut heating bills and create cosier homes since 2011.

Discover the difference professional insulation can make — starting with a free home survey.

A young boy and girl play and draw on the living room floor while their parents relax comfortably together on a grey sofa in the background.

Why Insulation Matters for Your Home

Insulation is one of the smartest investments you can make in your home.

Without proper insulation, up to 60% of your heat can be lost through your roof and walls.

By insulating your property, you can:

Cut up to 60%
On your annual heating bills
Home Comfort
Enjoy indoor comfort all year round
BER Rating
Improve your BER rating and boost your home's value

Home Insulation We Offer

External Wall Insulation
Transform the outside of your home and dramatically cut heat loss.
EWI wraps your house in a new thermal jacket, finished with a fresh, modern render.
  • Ideal for older solid-wall homes 
  • Improves both performance and appearance
Three construction workers wearing hard hats and high-visibility vests working from a scaffolding platform to apply and smooth external render on the gable wall of a house.
Cavity Wall Insulation
Many homes built after the 1970s have cavity walls that can be insulated easily.
We inject high-performance insulating beads that: 
  • Stop draughts 
  • Lock in warmth
  • Reduce energy costs 
A BlueBuild technician wearing safety goggles, red ear defenders, and a high-visibility vest injecting bonded bead cavity wall insulation through a drilled nozzle into an exterior house wall next to a front door.
Loft (Attic) Insulation
The roof is the number one source of heat loss in Irish homes.
Our expert attic insulation services seal your home from above, keeping the heat where you need it most.
  • Mineral wool roll-out
  • Ventilation upgrades to mitigate moisture build up
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.
Three construction workers wearing hard hats and high-visibility vests working from a scaffolding platform to apply and smooth external render on the gable wall of a house.
A BlueBuild technician wearing safety goggles, red ear defenders, and a high-visibility vest injecting bonded bead cavity wall insulation through a drilled nozzle into an exterior house wall next to a front door.
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.
A smiling woman wearing a headset takes notes with a pen while looking toward her open laptop at a wooden desk in a bright office environment.

Homeowners can access generous SEAI grants to make insulation even more affordable.

  • External Wall Insulation Grant: Up to €8,000
  • Cavity Wall Insulation Grant: Up to €1,800
  • Attic Insulation Grant: Up to €2,000

BlueBuild supports the full grant application process for you, making it easy to start saving sooner.

Real Customer Stories

  • June 2026 External Wrap, Cavity Wall and Attic Insulation. Chimney blocked and vents inserted in all of the rooms and attic. I would like to thank Tony, the project manager and Niamh in the office for such a good experience (and all the Bluebuild people who worked on our house). Bluebuild carried out all works in a timely, professional manner with minimum distruption. They organised everything and helped with the grant paperwork. I would have no hesitation recommending Bluebuild.
    Kathriona Dunne
  • Very happy with all works done 'lads were very helpful always ,worked very hard and long days to get our job done thanks to all who helped get our ho.e finished
    Helen Elliott
  • Fantastic service from Blue Build. The whole team did an excellent job wrapping our house. They were professional, reliable, hardworking, and the quality of the workmanship is outstanding. We couldn’t be happier with the finished result and would highly recommend them.
    paul skelton
  • We recently had external insulation installed on our home, and we couldn't be happier with the entire experience. The professionalism shown by everyone involved was outstanding. The quality of the workmanship is excellent, and the attention to detail is clear in the finished result. The installation crews were incredibly hardworking, friendly and courteous. They arrived early each day, worked efficiently, and were always happy to answer any questions we had. The management team were equally impressive. They were approachable, helpful and very accommodating throughout the project, making the whole process straightforward and stress-free. Nothing ever seemed like too much trouble. The work was completed much quicker than we expected, without any compromise on quality. The team also took great care to keep everything clean and tidy, leaving the property in excellent condition when the job was finished. We are absolutely delighted with the final result and would have no hesitation in recommending this company to anyone . A first-class service from start to finish. We'd like to specifically thank Michael, Colm, Lulian and his crew and Niamh the secretary!
    Barbara Monica O Hara
  • Had the most wonderful group of lads in to do the wrap fan s windows and attic insulation in my mum's house in wicklow town under the supervision of Jason roe project manager From start to finish a fantastic job the lads all very mannerly and plesent extremely tidy Could not rate them any higher Thrilled with the end result Thank you guys Andre and most of all Jason
    Jenny Keelaghan
Google Reviews
Rated 4.6 out of 5 stars on over 100+ reviews

Clean energy for homes and businesses with BlueBuild

Smart, sustainable energy solutions tailored to you.