SASH Windows

Timeless Sash Window designs

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Sash windows: the timeless classic

Sash windows have a history that reads back to the early 16th century, but they’re as applicable and attractive now as they ever were. The sash windows we offer at Harvest Energy are modernised and can be built using uPVC, one of the most durable and energy-efficient materials available. They can be made with double or triple glazing and are open to customisation options. In regard to peace of mind, the majority of our products carry a ten year guarantee.

Efficient and attractive

Sash windows have the ability to add a note of sophistication to any property, owing to their instantly recognisable and classic appearance. Our modern uPVC sash windows will also provide your home with the safety and security you’d expect, as well as fantastic energy efficiency and versatility.

Benefits of sash windows

Aside from their fantastic aesthetic, sash windows offer a range of benefits that can be found in all of our uPVC windows here at Harvest Energy, such as:

  • Durability
  • Ease of use
  • Easy to maintain and clean
  • Customisable
  • Energy efficient
  • Secure and safe


If you're interested in finding out more about our services, or if you'd like to arrange a free, no obligation inspection or have questions on our products, please feel free to leave your name and phone number below and we’ll call you back.


The best way to determine your requirements is for us to sit down and have a chat! If you’d like to arrange for us to visit your property or site, please book an appointment. This will be a no obligation session with one of our professional sales team members to determine exactly what you need. Please fill in the form below if you’d like to find out more or to arrange an appointment.


File in the form below if you would like us to send you our FREE brochure which displays some of the different styles, colours and options available to you.

free brochure


01 802 1800

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What Our Clients Say

In the twenty-five years Harvest Energy has been operating, we've worked hand-in-hand with many clients and have left lasting impressions on their homes and properties. Here are some of the most recent comments left by our happy customers.


I am really pleased with the outcome. Everything looks perfect and it gives me the extra space I needed. The team were fantastic, they were always there on time and there was no cleaning up to do after them. Their price was extremely competitive and the quality of work was exceptional, I will have no hesitation in using them in the future for smaller bits and pieces that I wish to get done.
A 10 out of 10 from me.


2 months


From the initial contact from the guys in harvest energy, right through to the end, the project was delivered on time and on budget. The project was managed by Colin Clare, together Colin and the architect I had decided to go with had exceeded all my expectations. It is because of this I would have no hesitation in recommending harvest energy in the future and have already done so.


3 weeks


The fittings look good, feel good and have improved the energy efficiency of the house.
The fitters were efficient, tidy, self-contained and well-disposed, in other words, professional.
Jason was easy to deal with, informative, polite and personable. They were great and I would recommend them as I would use them again in the future.


1 month

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