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 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

Example of a Window Energy Label



BFRC Internally Glazed Casement Senergy Elite BFRC Internally Glazed Casement Senergy Premium BFRC Internally Glazed Casement Senergy

Tilt & Turn

BFRC Internally Glazed Tilt and Turn Plus BFRC Internally Glazed Tilt and Turn Premium BFRC Tilt and Turn Elite

Vertical Slider

BFRC Vertical Slider

French Door

BFRC French Door Open in A Rated

Sentinel Door

BFRC Sentinel Door Range


Things you can do in just one minute:

  1. Turn the thermostat down by 1°C.
  2. Turn the lights off when you leave a room.
  3. Re-use and recycle as much waste as you can.
  4. Plug out electrical appliances when going to bed.
  5. Keep curtains closed at night and ensure that the curtains don’t hang over the radiators.
  6. 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.
  2. Furniture and other obstacles should not obstruct daylight penetration of the room. Net curtains hamper daylight penetration of a room.
  3. Look out for the Energy Saving Recommended logo when you’re buying, for example, elec­trical goods and windows.
  4. Choose heaters with thermostat controls and timers.
  5. Rooms should be furnished to allow daylight in, and activities for which daylight or sunlight are essential should be positioned near windows.
  6. 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.
  2. Use the timer on immersion heaters. This should supply you with enough hot water as and when you need.
  3. 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.
  2. 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.
  3. 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%–saving you up to €150 per year.
  4. 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


Michele Hynes, 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. 
Regina and Mark O’B.
Dear Senator Windows,My husband and I would like to thank you sincerely for the excellent work you did in our home. We had researched other companies and you came highly recommended & did not fail to exceed all our expectations. The moment we sat down with you we knew we had made the right decision. Throughout the whole process you kept us informed of progress made, timelines and deadlines. Your staff were extremely friendly...
Tom Byrnes
Thank you for organising the window repairs before the wind went into the Southwest!! The men who came were very knowledgeable, efficient and cheerful. A good team that is a credit to Senator Windows.
Murphy, 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.
Moran, Dublin
We are delighted with our new windows. Very professionally fitted by Derek and Derek father and son. Their attention to detail and superb workmanship is a credit to them achieving a fantastic finish to the work well done and thanks again lads.
David - 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.
Ellen - Wicklow
We are happy with the design and colour of our windows and door – they particularly transform the exterior of the house. We plan to replace the front windows and door sometime in early 2017. I’d like to take this opportunity to extend my thanks to Pat and Chris who were very professional in their work while also being friendly. Together they make a great team.
Ian Murphy
Excellent yet again, have used 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
Just wish to complement you on the excellent work you carried out for us. Every window and door in the house was replaced and your team did it in a day and a half with the minimum of mess. Also Phil your salesman was excellent taking time to make sure we ordered the right windows for us. We would recommend your product and staff to anyone.
Meant to get in touch ages ago!  Just wanted to say the windows are fantastic.  They look better than we Imagined.  Really glad you persuaded us to go with the lift and slide, it works like a dream.  I would not hesitate to recommend Senator and if we take on another building project in the future you will be the first company we consider for windows!
Scott - Cork
Hi, I would just like to pass on my thanks to Senator Windows and especially Martin in the Cork office for the outstanding customer service we received recently from him.  Martin made the whole process hassle free for us and it was a pleasure to deal with him.  Because of this, I would recommend Senator Windows in Cork to everyone.
Liam Spratt
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.
Elaine – 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 – Michael and Jessie – as I did not get the chance to thank them personally.
Eimear - Dundalk
A big Thank You to Senator Windows for first class service from the Dundalk Gang & to all the gang that make the top class windows & Doors, service second to none & quality of the products is fact when my triple glazed windows & new doors went in..I nearly slept in the next morning because of the silence with no noise from the cars on my main road....haaaaa.....beautiful sleek windows & doors with amazing locking system...
Denise and David Byrne
We are so happy with our doors and windows. We feel more secure as a result, but just love how beautiful they are and how the integral blinds means we can get more natural light into our home. The fitters were amazing! They put in a great product to a very fine finish. We so appreciated their punctuality and how they explained everything. So happy!
Ms. Carney
Thank you very much for a job well done. The windows and doors are beautiful. The men left the place in great shape, no mess whatsoever.
Frank Regan
Thanks again for excellent service. We are very happy with our new windows and very impressed with the fitting crew.
Embassy Of Finland
This is a thank you letter for the great work carried out by Senator Windows.. read letter
Pat Brennan
Fitting team very tidy and efficient. Very happy with all aspects.
Just to let you know that we are really pleased with the new windows and much admired by neighbours. Great credit is due to Paul and his team Gabriel and James for an excellent job on the fitting. They were totally professional and so neat in their work.
Ian Murphy
First class service from start to finish
Ann Allen
Very neat and tidy would recommend Senator Windows. Very happy.
Brendan McNally
Got Alu-Clad windows fitted by Senator Windows. Very happy with the fitters and service I received from Senator Windows.
Patrick Blessing
Had my windows and doors supplied and fitted by Senator Windows very happy with the advice I was given regarding security of windows and doors and different designs of windows I could choose from. Good Experience.
Angela Begley
Senator Windows replaced windows at my house and I am very happy with everything. The fitter was very neat and tidy and Senator Windows provided a fantastic service to me. Would recommend Senator Windows.
Paul and Aideen Byrne
Hi Guys...Sorry we never got to meet you. We are delighted with the work you have done. The attention to detail is excellent. Great workmanship. Thank you.
Paddy Carolan
To Keith & Gary,Thank you for the beautiful doors and windows, much appreciated by everyone.
May I say that at a time when we may feel all decency and old fashioned values have been lost, Matt is proof that the good guys are still out there, I apologised as he was called from another job to come to me, and his whole demeanor of complete understanding and empathy was heartwarming. He sorted the problem and my door is now fine again. I just wanted you all to know that it is staff like Matt who will carry us through these difficult times.
I just wanted to drop you a line to say thank you so much for your professionalism and the superb quality of service I received from you and the Senator Windows team. I am absolutely delighted with the work and my new windows are still a source of delight, not to mention heat and silence, which we are also enjoying. I cannot speak highly enough of you and, in particular Derek Snr and Derek Jnr, who took such care with my home and who did a thoroughly splendid job.
Austin and Emer
Just to let you know that we were impressed by the service we received when we recently had our windows replaced by Senator. The fitters were competent, friendly and courteous at all times and we would have no hesitation in recommending Senator to our family and friends.
Customer from Rathgar
Denis, Many thanks for your advice on the windows. A great job done. Many thanks again.
Satisfied Customer
Gordon & Mick are doing a wonderful job. They are really as good as you can get, the way they do the job and do not get in the way or ask for anything. They are a credit to real Irish people. Wow what a nice change from the past 4/5 Years. It is hard to believe how well & quickly they get on with their job. You would expect changing all the windows in your house would be a nightmare. NOT SO!!!!!!
Happy Customer
Denis, on behalf of Sam & myself, 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.
We are very pleased with the complete end to end job. The quality of your sales service, product and installation was excellent. The installation crew cleaned up each day, and taking into consideration the size of the job, my wife and I were very satisfied with the end result.
Some weeks ago two of your fitters installed windows to my home. I was longing to have the new windows, but dreading the experience. Father and son – the two Derek’s arrived to do the job. They put me at ease immediately. They are an exceptionally good team. These lovely men were a pleasure to have in my home. The finished product is simply splendid and I am so very pleased. Thank you.
Miriam O'Byrne and Charlie Scullion
Great job done with pride and high standard...Brian, Carol and ESPECIALLY THE TWO DEREKS. Everyone I dealt with in the company was very professional and I now know how you have achieved the fantastic reputation you have as a long running, highly respected company. Before we chose to use your company we had done our research and also asked around. No one had a bad word to say about you!
Geraldine Gray
Just wanted to let you know that we are very happy with our new Bi-fold door.  Simon did a really good job fitting and finishing the door.  The improved heat downstairs was noticeable immediately.
Seamus Just
Thank you. The boys left the place very clean and did a very good job.
Nicholas Murphy
Beautiful windows, expertly fitted, very neat finishing around the windows and window sills.  Very happy overall. Personally I think your service is top class.  Very hard to improve something that is top of the range.
Ivor Donegan
Just to let you know how happy and satisfied I am with my new windows which were fitted recently by your crew, who were excellent, tidy and courteous fitters.  Their work was 100%…superb job fitting the windows and doors.  Michael Cowman was great with us from the start, giving us advice on selecting the window and door range.  He is a very friendly and co-operative man…..Good strong quality windows and doors; I will definitely recommend them to other people around.
Peter Mcloughlin
“I would just like to drop you a brief note of thanks for the manner in which your installers worked in completing the job on our property.  In every aspect one could not but appreciate their professionalism, work ethic, courtesy and attention to detail whilst they went about their work.  So many thanks, and please pass my thanks onto them as they are excellent ambassadors for your company.”
David and Catherine Lord
“We recently purchased Senator Windows. I would like to compliment John Moynihan for his presentation, which ultimately made our decision to purchase Senator Products, an obvious choice.  Also, the workmanship and assistance from Jim and Jim during fitting was exemplary.”
Heather Stephens
“Thank you very much for an excellent service and product.”
Kathleen Sinnott
“Having had my windows and doors fitted recently by Senator, I wish to express my sincere thanks to all involved. From the sales rep, who was most helpful to me in choosing the most suitable designs for my house, to the men who fitted them, they were brilliant, courteous, and very professional. All a great credit to Senator and to Wexford.”
The Hennessy Family
Senator Windows recently installed a new front door for us. From beginning to end they were so professional, prompt and exceptionally tidy. The job was completed with minimal disruption to us, despite the awful weather on the day. It was very evident that the experience and professionalism of John and his entire team contributes to this, and I would have no hesitation in recommending Senator Windows Kilkenny for any job.
Sarah Ann O’Connor
We had an excellent experience with Senator windows Knockgraffon. We live in a very tricky old house with windows at funny angles. It was a breath of fresh air when Andy visited and took measurements and provided a good price with no pushy sales technique. When the team of lads arrived it was evident from the off that their work ethic was excellent. They had the windows changed and the house left clean with very little disturbance. I highly recommend this Window Team!
Noel Conroy
The product display area is fantastic, it’s great to see what can be done when renovating an old building and with such a large selection of windows & doors on display under the one roof it was also a major benefit to us when deciding what style and type of window and door to go with.
Liam Noone
Would definitely recommend senator windows, provide an excellent service.
Christy Sinclair
Happy to recommend Senator Windows, they did a great job for us.
Jacinta Stafford
Everyone has asked about the windows, specifically, where did we get them/who fit them. By far we know that the best decision was the choice we made in choosing Senator. We are really pleased with the windows and especially the energy benefits of Timber / AluClad over uPVC and of course the asthetic look and feel of these products being more superior in the overall finished result and, of course, the service and attention to detail in processing the order being, second to none!
Mattie McGrath TD
I would like to wish Andy every success with the opening of his new Senator Windows product display area. Andy has an excellent reputation for providing a quality product with fantastic service. He supplied the windows and doors for my daughter during her build recently and the service she received was second to none. I know that Andy’s service can only go from strength to strength now with the opening of his new showroom and I could highly recommend him.
Sandra McCormack
This is a great company to deal with and I was delighted with the outcome of using their windows. They make a huge difference in our home. We were so glad we went with this company. And the men who put the windows in are very professional and clean and tidy. I so recommend any one to use these and Andy Hennessy himself was very help full before and during and also after the windows were put in. Such a nice person to deal with also.
John O Connell was very thorough, nothing but good to report.
Would highly recommend Senator to anyone in the market for windows and doors, fantastic service.
Flawless, done to perfection, John O Connell was very helpful.
Good experience, would use Senator again.
Good experience overall, John O Connell was very helpful.
High quality service overall, very pleased with the product, service & fitting.