Home - Horizon Windows

Your trusted nationwide

specialist!

Start Designing

Horizon Windows & Doors

5.0

Based on 20 reviews

review us on

Romica Visan

12:02 17 Oct 25

Guy Maddison

10:35 09 Oct 25

Purchased new windows for a job we are doing for a customer in Portsmouth. These guys are great. Very responsive and know what they are talking about. They also keep up with building regulations to make sure everything they supply meets the standard. Thanks!!!!

Danny

10:21 09 Oct 25

Bought a set of bifolds very swift with delivery and good quality product. Thanks

daniel clark

13:03 15 Jul 25

Bought a bifold door and two windows
Great price and swift delivery!
Thanks.

Steve Winterberg

18:52 29 Jun 25

I have been using Horizon windows and doors on our properties and those of customers for over 10 years now and never ever had anything other than 1st class service and quality - light tunnels, roof lights, french and sliding doors, windows in plain, woodgrain and painted finishes and the replacement of blown sealed units originally fitted by others. Thoroughly recommend! Great company with 1st class professional staff.

jason knight

17:42 19 Jun 25

Bought a set of bifolds for new extension. Great guidance and friendly service from josh and his team. Product arrived on time and excellent quality. Very pleased and warm friendly family run business

Dan Ette

19:02 18 Jun 25

Great service

Imogen Farrell

17:55 18 Jun 25

Great experience! Ordered bifold doors and a roof lantern, everything arrived on time and looks amazing. Good prices, helpful support, and solid quality. Would definitely use them again.

Nicola Lilley

08:13 15 Jun 25

Great service- Window was installed quickly and promptly. Thanks so much. Would recommend!

Robert Belcher

15:46 14 Jun 25

Supplied and fitted a set of bi-fold doors in our new extension. Good workmanship and took away all waste afterwards. The doors look great and its really finished off our new patio area. Thumbs up ?

John Varndell

18:22 08 Apr 25

James Black

10:43 26 Mar 25

I used horizon windows & doors to carry out some work on our extention.. the quality of work and service received was excellent... highly recommend...

Vincent Dunne

21:03 20 Mar 25

We recently had bifold doors and windows installed and we couldn’t be happier with the results! From start to finish, their team was professional, knowledgeable, and incredibly helpful.

The quality of the doors and windows is outstanding and clearly built to last. The installation process was smooth and efficient, with great attention to detail. They kept us informed throughout, ensuring everything was perfect. Highly recommend to anyone looking!

Steven Wight

20:51 19 Mar 25

I used horizon for windows for my extension, we had a great service from start to finish we are using them again later in the year to replace the existing house windows after seeing the quality of the ones for our extension, super pleased with them.

Emine Holden

20:45 19 Mar 25

I purchased five windows for my home, and the experience was seamless. The team was professional, efficient, and very helpful throughout the process. Highly satisfied with their service!

Your trusted nationwide window and door supplier

Start Designing

Welcome to Horizon Windows & Doors – your nationwide specialist in high-quality windows, doors, rooflights and glazing solutions. From bespoke roof lanterns and elegant bifolds to versatile sliding doors and windows in a range of designs and finishes, we deliver beautifully crafted products backed by expert support.

Whether you’re a homeowner or trade client, we offer precision manufacturing, flexible sizing, and a price-match guarantee – all supported by seamless nationwide delivery and a commitment to outstanding service.

Nationwide Delivery

We offer FREE DELIVERY on selected orders, with free next-day delivery available on selected items

Customer Support

UK-based support team ready to help with product advice, orders, and delivery—quick answers from real experts

Competitive Prices

Top-quality products at prices that won’t be beaten - shop smart with trusted brands and everyday low prices across our range

Trade Discounts

Trade-only discounts! Sign up to save on bulk orders.

Buy Now Pay Later

Buy Now Pay Later options for all products at checkout!

Discover Our Range

Roof Lights

Browse our stunning collection of roof lanterns, available in a variety of designs and finishes to bring natural light and style to your space.

Shop now

Bifold Doors

Our Korniche bifold doors and Cortizo sliding doors offer premium, space-saving solutions that blend modern style, natural light, with a seamless living experience.

Shop now

Windows

Discover our range of stylish household windows, offered in multiple designs and colours to complement your home perfectly!

Start Designing

Doors

Explore our range of doors that can be customised using our intuitive software, offering complete control of size, colour, materials and more!

Start Designing

Roof Windows

Discover our outstanding Fakro range of roof windows & light tunnels, available in various styles and finishes to suit any home.

Shop Now

Verandas & Awnings

Enhance your outdoor living with our stylish Verandas and Awnings - perfect for year-round comfort, shade, and shelter.

more info

Frequently Asked Questions

What types of products do you sell?

We offer a wide range of rooflights, skylights, roof windows, roof lanterns, bifold doors, sliding doors, and associated glazing products.

Do you deliver across the UK?

Yes — we provide delivery across the United Kingdom

Do you offer trade accounts or trade pricing?

Yes — we have a trade account program. Once your application is approved, trade discounts will automatically apply at the checkout.

Can I pay later / in instalments?

Yes — we support “Buy Now, Pay Later” options (via Klarna) at checkout.

Do your products come with warranties?

Yes — we offer warranties on our windows, doors, and glazing. For more information contact our team.

Do I need planning permission for installing bifold or sliding doors or rooflights?

Planning requirements depend on your local authority and whether your property is listed or in a conservation area. We recommend checking with your local planning office.

How do I receive a quote

Simply click the 'Start Designing' button to start designing your chosen product. Once you have entered your details you'll receive and instant quote and the option to buy now. Otherwise you can contact our team with your specifications and we will get a quote over to you asap.