Double Glazing Cheltenham & Gloucester

High-Tech Windows has been improving customers homes in the West of England for 35-years with our home improvement products. In more than 42,000 homes across Cheltenham, Gloucester, Bristol, Swindon, Stroud, Cirencester, Forest of Dean, Evesham, WorcesterNorton, St John’s, Hallow, Callow End, Northwick, Claines and everywhere in between, we have fit windows, doors and conservatories. We pride ourselves on offering products that will truly compliment your style and your property.

We cover the counties of Gloucestershire, Wiltshire, Oxfordshire and parts of Worcestershire and Herefordshire.


Quality • Style • Affordability

We use our expertise and experience to select the product ranges that we believe represent the best combination of quality, style, technical superiority and affordability.


Frank was great – he Explained and went through everything but not in a long winded or pushy way which was nice. He answered all my questions I had and was very knowledgable and pleasant – it makes a change not to have a company shoving the sales speech down your throat!!! The house I am living in now for the past 20 years has the original doors and windows in that Hi tech put in 43years ago so I know that they last!!!!! Looking forward to having new windows now – might even think about getting a nice new front door in the future!

Miss Howells -

It was the second time we’ve used High Tech and we would certainly use you again. We’ve found you very professional and reliable.

Mr and Mrs R - Gotherington

Your installation of our windows was superb at every stage from sale to survey, through to installation. Keep up the good work.

Mr and Mrs B - Tewkesbury

I had High-Tech windows and doors fitted throughout our property and at the time, after installation, I felt I had to write to you to say what a fantastic job your team of fitters had carried out. Well, it’s happened again!!!! I had an alignment problem with our patio doors and the locking mechanism was causing problems. I hardly had time to put the phone down before your technician had arrived and very professionally fixed the fault… What a fantastic service and company High-Tech is.

Mr A - Cheltenham

I have recently had a repair to the conservatory which I purchased from your company 12/13 years ago. Duncan March (Service Engineer) came along and assessed the situation and after a few weeks came to Winterbourne and affected a repair. Since then it has had a real test with the heavy rainstorms, and the conservatory was totally dry. I am so pleased with the efficient way your staff dealt with the situation and delighted when I was told there would be no charge especially with the guarantee no longer in operation. The Goodwill that goes along with such a gesture is tremendous

Mrs K - Winterbourne

I would just like to say how pleased I am with your exceptional product support and the professionalism of your staff. I had a small problem with a window that had been fitted fitted five years ago and this was fixed without any fuss within a few hours of my call to the Office. I don’t normally provide feedback to companies but just felt I had to let you know how pleased I was with your service . Many Thanks, Peter

Mr B - Gloucester

Sincerest thanks for the cheque for £50 sent to me on 30 March relating to me recommending you to Mr & Mrs E. Very happy to help; my wife and I remain delighted with our High Tech products and installation, and it has been a very easy task to recommend you to many other friends and neighbours.

Mr H - Gloucestershire

Thanks again for all of your (and Alan’s) help – it really has transformed our house and the whole experience of dealing with High Tech (as a customer this time!) has been excellent.

Mr T - Gloucestershire

Just wanted to say thanks for the speedy response to the roof problem on my 23 yo conservatory which I called about yesterday afternoon. Your guy did a great job this morning and I now feel we have a secure set of roof panels. A great service after all these years. Thanks again.

Mr H - South Gloucestershire

Thank you very much for the most impressive response to our broken window catch. Engineer fixed same day we rang you. Very impressed with your excellent service.

Mr L - Malvern

I would like to thank you for your help getting planning permission for my windows. It wasn’t the easiest thing in the world but you managed it. The crew who fitted my windows were helpful, polite, cheerful and cleaned up after themselves every day. I couldn’t have asked for a better team. The windows have transformed the house. I love the sashes but also the simpler ones on the back windows look lovely too.

Sally B -

I wish to say thank you for the efficient and timely way in which your two Engineers repaired the runner on our patio door this morning. They arrived on time, used a ground sheet to take care of the carpet and did a good job Thank you

Mr & Mrs B - Cheltenham

Your fitters Toby and David fitted new patio doors and two exterior doors for us on Monday 2nd October and what pleasant and efficient people they were too. We were highly surprised yesterday to be contacted by Toby who said that he had realised that they had not fitted some plastic caps(?) to the exterior doors – which we were completely unaware of – and could he come along and fit them. We of course agreed and within half an hour he arrived and fitted them. Now I call this customer service of the very highest degree. Most impressed. Would you please thank Toby and David. I also demand(!) that you pass on this message to their manager and to the Managing Director of your business. Thanks

Hugh & Bet C - Painswick

I have just been visited by Duncan of HiTech service department and want to give a recommendation for excellent customer care – he went beyond the remit of investigating a leaking roof to also spotting & rectifying a problem with the gutter.

Mrs W -

Excellent swift installation. Polite experienced fitters.

Mrs S -

Courteous, hard workers, pleasant to have around and the white lean-to makes a small room seem bigger.

Mrs H -

Just had 10 new windows fitted by the high tech team so pleased with the windows a big thank you to the guys who fitted them very professional and courteous cleaned up afterwards no mess left very pleased I would highly recommend this company

Mrs M -

This is the second time we have used High Tech windows and they were great again.
Great service from the sales team through to the guys who fitted our windows/doors.
Overall very pleased.

Mr A -

We are really please with the Warm Roof that was installed last year and now we have new windows, good prices friendly and helpful staff.

Mrs M -

Very good efficient service, polite staff and am very pleased with the product. Can certainly recommend this company.

Mr J -

The High-Tech team gave us excellent service and we are very pleased with the finished product.

Mrs D -

I Had a conservatory built by them 3 years ago…. brilliant service… aftercare and from start to finish very professional… would definitely recommend them.

Mrs O -
skylights chipping campden

A Commitment to Excellence

We have built our reputation on exceeding our customers’ expectations.

We use our expertise and experience to select the product ranges that we believe represent the best combination of quality, style, technical superiority and affordability. It means you can have confidence that you are choosing products that will add the most to your home.

conservatories chipping campden

Better Products, Better Prices

Our products are backed up with a commitment to treating you with the greatest courtesy and respect. Our quotes are completely without obligation and we will never pressure you to make a decision. We will keep you informed at every stage so you know what is happening when. And our fitters understand that they are working in your home and will work cleanly, tidily and professionally at all times. Why not make the most of our fantastic offers today?

uPVC Casement Windows Quedgeley

Competitive Double Glazing Prices

Visit our online quoting engine to enjoy highly competitive prices based on your specifications.


Any Home


Whether your home is new or old, big or small, we’ll be on hand to offer the right product to ensure the perfect fit.

Professional Service


We pride ourselves on offering you a service that has been refined over the years for maximum quality.

Market-Leading Products


Enhance the comfort, security, and warmth of your home with our selection of cutting-edge products.

conservatories chipping campden

Conservatories, Orangeries and Extensions

Our range of conservatories, orangeries, and house extensions allow you to increase your living space without the costly and stressful process of moving home. We make it easy for you to bring a stunning new addition to your home that excels in all areas.

Flush Sash Windows Quedgeley

Windows & Doors

Getting the right windows and doors for your home can be the definitive factor when it comes to securing comfort. We offer a wide range of high quality options to accommodate a wide range of property architecture and personal tastes to ensure you get something right for your home.

Start a quote for your new home improvement project

We will respond to your enquiry quickly and aim to arrange your consultation within 24 hours. If you ask us to prepare you a full written quotation, you will receive it the next day. You will have a dedicated sales consultant who understands your project and is on hand to answer all the questions and queries you will undoubtedly have.
Arrange your consultation today.

Whether it’s new windows, doors, a conservatory or even a single storey extension, you are making an investment in your home and its future. That’s why we offer several finance options that mean you can afford the very best without compromise. You can pay for your products straightaway. Alternatively, subject to status, you can opt for interest free credit, low rate monthly payment or buy now pay later.
Find out more about our finance options.

We want your High-Tech windows, doors or conservatory to remain in excellent condition for their entire lifespan. We pride ourselves on the quality of our installations but our after-care team will give you additional reassurance. We also have a dedicated team of service engineers who will help you look after your products for the initial 10 year guarantee period and beyond.

Find out more about our after-care service.

Some Of Our Products

R9 windows
uPVC Front doors Kineton
Conservatory Roofs Cotswolds
House Extensions
High tech

Latest News

Contact Us

If you would like to know something that you cannot find on this site, then please don't hesitate to contact us using the form below. A member of staff will contact you as soon as possible.

* indicates required fields


Start Your Quote

Book An Appointment


Interest Free Credit