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Upgrade your glass with ENERGLAZE and make your home more comfortable, reduce energy bills and keep your existing window frames.

Since late 2012 ENERGLAZE has been quietly going about its business of upgrading windows with the very latest in energy-saving glass. We have quickly established ourselves as Ireland’s leading company in retrofitting and have upgraded over 2000 homes to date. We are currently retrofitting between 20 and 30 houses per week.


First of all, we don’t take anything for granted and will carry out a free, no-obligation quotation and survey. This allows us to test the type of glass you have in your current window frames and make sure they are suitable for an upgrade. We won’t offer you a glass upgrade unless you will get the maximum benefit from doing so. Occasionally we come across window frames that are just too old and to upgrade the glass would be uneconomical. In these rare instances we can offer the customer the opportunity to change their entire windows using our glass.

Our Glass

Our Low-E-Plus range of glass uses the latest Pilkington technology to create a double-glazed unit that offers the lowest U-value to suit your existing frames. A U-value is a measure of heat loss and the lower the U-value the better the product is at reducing heat loss. A typical regular double-glazed unit will have a U-value of 2.8 and our Low-E-Plus unit will have a U-value of 1.0, making it almost 65% better than regular double glazing.

Our Customers

Typically, our customers are people that want to improve the comfort of their homes by making them more energy efficient. The additional benefit is that they do not have to change their window frames in order to make their windows more efficient. Feedback from our customers has been so positive that 10% of our leads are now coming from referrals from previous customers and 5% of leads are coming from previous customers that had part of their house converted and now want to proceed with the rest. “It really does work” is the most common statement from previous customers.

Typical Upgrades

Upvc-Double Glazing upgrades, Timber-Double Glazing Upgrades, Timber single glazed windows converted to double glazing, Sash Windows in period homes –Ultra-Thin double glazing installed. Aluminium single and double glazing.


or CALL US ON 01 9011 635


“We upgraded the glass in our uPVC frames in the front of the house to start with and we were so pleased with the result we did the rest of the house.  Whole process was top class from start to finish including issuing of guarantee and certificates-friendly and informative throughout.” - D King, Dunlaoghaire Co. Dublin
- Read more Testimonials here

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