OMI015629 – Senator Window Loan – Senator Website_1600x430px.v1
OMI015629 – Senator Window Loan – Senator Website_1600x430px.v1


With today’s global awareness of climate change, many people are looking for new ways to reduce energy and carbon emissions. That’s why Senator Windows, having led the way in energy-efficient windows and doors for 30 years, is proud to launch the new Senergy+ range of products. Made exclusively from lead-free PVC material, these new energy efficient windows actually exceed the energy standards set down by the National Standards Authority of Ireland (NSAI) new Window Energy Performance (WEP) initiative. This means the Senergy+ window range will not only reduce your heating costs but will also help to reduce your carbon footprint, enabling us all to live in a greener environment. We have showrooms in Dublin, Cork, Limerick, Mayo, Clare, Cavan, Kildare, Kilkenny, Tipperary, Kerry, Wexford, Meath, Dundalk and Galway where you can view our wide range of energy efficient windows and doors; call any of these showrooms to make an appointment today to discuss your needs for high quality, energy efficient windows and doors.

We appreciate that it can be difficult to understand the industry jargon, so we have produced this information to help you understand more about Window Energy Ratings, current industry standards and why you should choose the new Senergy+ Windows.

What are Energy Efficient Windows?

They are windows that help to contain and conserve heat within the home by keeping out wind and rain and resisting condensation, while at the same time allowing natural ‘free’ energy – the warmth of the sun – to heat the home.

What is a Window Energy Rating?

Window Energy Ratings use a consumer-friendly traffic-light-style A-E ratings guide, similar to that used on ‘white’ goods such as fridges, freezers and washing machines. This ratings label can be used by you to make more informed choices about the energy efficiency of the windows you are buying.

So how do you know if a window is Energy Efficient?

Energy Rated Windows are easy to recognise – just look for the labels! If the window does not have a BFRC (British Fenestration Rating Council) or NSAI energy-rated certificate, it’s not a registered Energy Efficient Window. NSAI’s Window Energy Performance (WEP) Certificate displays an overall energy rating (similar to the Building Energy Rating BER label) for a defined window and window-frame assembly that helps consumers to make an informed selection. The scheme is applicable to window manufacturers and companies marketing imported windows for domestic buildings. The purpose of the scheme is to independently certify windows for an energy performance (WEP) rating.

How are windows rated?

Each window rated by NSAI or BFRC has a unique label. This label will display the following information:

    • rating level – A, B, C, etc.
    • window U-value (thermal transmittance), e.g. 1.4 W/(m2.K)
    • effective heat loss due to air penetration (air leakage) as L, e.g. 0.01 W/(m2.K)
    • solar heat gain (solar factor), e.g. g = 0.43

Simply put, this will determine how well a product will perform the functions of:

    • helping you contain and conserve heat within your building in the winter
    • keeping out the wind



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Things you can do in just one minute:

    1. Turn the thermostat down by 1°C.
    1. Turn the lights off when you leave a room.
    1. Re-use and recycle as much waste as you can.
    1. Plug out electrical appliances when going to bed.
    1. Keep curtains closed at night and ensure that the curtains don’t hang over the radiators.
    1. Turn off the heating overnight and when you are out during the day.

…in 15 minutes:

    1. Clean your windows; dirt on vertical windows can reduce performance by 10% and even more if the dirt is allowed to build up on roof-lights.
    1. Furniture and other obstacles should not obstruct daylight penetration of the room. Net curtains hamper daylight penetration of a room.
    1. Choose heaters with thermostat controls and timers.
    1. Rooms should be furnished to allow daylight in, and activities for which daylight or sunlight are essential should be positioned near windows.
    1. Paint the surfaces of rooms, including ceilings, with colours of high reflectance to maximise the day lighting opportunities (and also the effectiveness of artificial light). Light colours can reflect up to 80% of incident light. While deep/dark colours might reflect less than 10% of incident light.

…in 30 minutes:

    1. Buy your hot water tank a jacket; a lagging jacket on your hot water cylinder will keep water hotter for longer and pay for itself in 2-3 months.
    1. Use the timer on immersion heaters. This should supply you with enough hot water as and when you need.
    1. Buy energy-saving light bulbs.

…in one hour or more:

    1. Replace your old windows. Choose double-glazed units when replacing windows. Much of the heat loss from a house occurs through the windows particularly if they are single glazed. Significant energy savings can be achieved if double glazing is filled with argon gas and  has low-emissivity glass.
    1. Insulate your loft; insulate your attic well and save up to 20% on your home heating bill. If your attic insulation is currently less than 200 mm, then you should add further layers. There are a variety of suitable materials including mineral wool, rock wool, sheep’s wool, polystyrene, cellulose fibre and multi-layered foil.
    1. Service your boiler; if your oil or gas boiler hasn’t been serviced recently, then you could be wasting money. In fact, by servicing your boiler, you could improve your overall efficiency by 10%.
    1. Insulate your walls; wall insulation can be increased in a number of ways— The pay-back period is dependent on a number of factors including type, thickness and quality of existing insulation. The most popular types of insulation systems are
      (i) insulated dry lining
      (ii) blown mineral or cellulose fibre or polystyrene beads into the cavity or
      (iii) rigid external insulation with render or brick finish. Specialist advice should be sought in all cases.

For more information on energy saving windows call us now on  1850 77 44 55


Customer in Navan
Just a quick note to thank you and all at Senator for a fantastic job on my front door. I am absolutely delighted with it and my dealings with at all of staff guys were brilliant all the way through the process.Thanks again for everything and for accommodating the installation on the Saturday of a Bank Holiday week-end. I really appreciate it. 
Customer in Kerry
Just wanted to thank you for your attention to detail, customer service and courtesy. The lads were brilliant. They have their craft down to a fine art. Ireland would be a thriving country if we had at least 20% of a work force like them. So wish that I could have done all the windows now that I see them in.  Once again thank you very much for everything.
Customer in Cork
Excellent yet again, have used Senator four times and have been very impressed each time. The fitters left no mess and a beautiful finish, a quick lick of paint a week later and all done. No problem recommending Senator, and have already done so! Thanks again.
Customer in Wexford
Heating costs have reduced by at least 50% since we installed Senator Windows. All of my friends and neighbours have remarked “oh have you built a new house, as it looks completely different with the new windows and door!” The new window design also improves safety in our home in the event of a fire, which most people don’t even think about. The whole process from fitting to after sales service was superb.
Customer in Dundalk
Absolutely first class which includes the personnel, the quality of the product, the workmanship. I would have no hesitation in recommending your company to anyone. Well done and please pass my thanks to the gentlemen who installed the windows – as I did not get the chance to thank them personally.
Customer in Dublin
I wish to hugely thank you for our beautiful windows and doors. We really are absolutely delighted with the job. Thank you for the personal attention you gave us.
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