Insulation, renovation and energy upgrades for your home.
Stay warm, save money

Energy saving home improvements that reduce fuel and electricity bills

Benefits of a warm, well insulated home

A well insulated home can reduce your heating bills by 35-40%, give condensation the boot, reduce your carbon footprint and add value to your property.
Save money
Reduce your energy bills by preventing heat escaping through walls and ceilings
Stop mould and draughts
Draughts are eliminated and walls stay warm, which prevents moisture condensing and causing mould
Reduce your carbon footprint
Smaller heating bills and reduced energy use means less carbon is emitted into the atmosphere
Increase the value of your home
The improved appearance and energy efficiency make your house worth more - if you ever want to sell!

How we make it happen

With over 50 years experience, we can make the process of improving your home as painless as possible.
Book a consultation
Talk to us and tell us a bit more about your property. We'll listen and offer suggestions of how we can help
We plan the work
Once you engage us to carry out the work, we will survey your home and order materials
We carry out the work
We will carry out the work to our high standards, minimizing the disruption to you and your family
We stand by our work
With those 50 years of experience, we are confident that our work will stand the test of time

Cold, damp house?

Many Irish houses, particularly those built before 1980, can be cold, damp and very wasteful of energy.

A number of cost-effective energy saving solutions exist which, through reducing fuel and electricity bills, can pay for themselves in a relatively short time.

Energy conservation measures can also make the house warmer, more comfortable, and eliminate cold draughts and condensation.
Book a consultation
A cosy home with a family
  • "Our external insulation fitted by Brendan is a really fantastic job. Easily the best investment we have made."

    John Paul, Letterkenny
  • "Brendan's workers were diligent and made every effort to produce an attractive end product. I would recommend Brendan to anybody considering an upgrade to their property."

    John Farren, Ardagh
  • "The addition of solar panels means not a drop of oil has had to be burned to heat the water. A great saving!"

    Fr. Bradley, Buncrana
  • "We are delighted with the end result and would have no hesitation in recommending them to anyone"

    Ciaran O'Donnell, Shore Front, Buncrana
  • "Insulation, triple-glazed windows, a heat pump, underfloor heating and solar panels. The house has an A1 rating."

    Martin and Majella, Buncrana, Co. Donegal
  • Brendan and his crew brought our house from an F rating to A2. My family and I couldn't be happier and would recommend him to anyone."

    Stuart McCrabbe

50 years experience

B. Donaghey and Sons Ltd are external wall insulation installers. We are backed by over 50 years experience in the construction industry. Our company has continued to grow with our reputation for delivering a quality service, while also having the foresight to embrace new technologies.
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Powerwall logo
Passive House NI logo
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We are ready to help

Discover how we can make your home warmer and save you money on your heating bills

Book a consultation
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