NexGen Windows | Double Glazing Windows & Doors | Swindon
Telephone: 01793 977030
  • NexGen Windows


    Visit our showroom to find the latest sales. Or get in touch for a totally free and no-hassle quotation please give us a call today on 01793 977030.

  • NexGen Windows

    40 years' experience in Double Glazed Windows

    We are a Certass trade association approved and a consumer protection approved company. All of our double-glazed windows and doors are installed to the very highest standard with a 10 years guarantee.

  • NexGen Windows

    Reliable, Secure, GRP Composite Doors Swindon

    With the same stunning range of 13 colours to choose from, the new option allows customers to mix and match shades to suit the inside and outside of their home.

Double Glazing Windows & Doors | Swindon

We are a Swindon based professionally run double glazing company installing a market-leading selection of uPVC windows and doors. Our double-glazing services are available in Swindon, Marlborough, Cirencester, Chippenham, Oxford, Newbury, Gloucester, Cheltenham, Melksham and Devizes. Contact NexGen today on 01793 977030, or use our online contact form for a free no obligation quotation.

NexGen Windows are licensed members of many building associations

Double Glazed Windows

Infinity windows have a lifespan of several decades. They are durable and energy efficient with a low maintenance easy clean finish.

Double Glazed Windows

Strong Composite Doors

Premium collection of beautiful traditional and contemporary front doors, engineered for reliability, exceptional strength and performance.

Door Fitting

Conservatory Upgrades

Is your conservatory too hot in the summer and too cold in the winter? Our conservatory upgrades could make your conservatory a comfortable environment all year round.


Nexgen windows ltd is an introducer appointed representative of Phoenix Financial Consultants Limited ("Phoenix"). Phoenix is a credit broker that is authorised and regulated by the Financial Conduct Authority (Financial Services Register No. 539195) which offers finance for home improvement projects from its panel of lenders. All finance subject to status and credit checks.

Professional, premium & passionate about our windows and doors. Get a wonderful new look for your home!

10 years guarantee on all products.

Double Glazed Windows & Doors

We offer a wide range of products and services, including:

UPVC Windows

Aluminium Windows

Flush Windows

Sash Windows

Casement Windows

Double Glazed

Triple Glazed

Composite Doors

PVCU Doors

Bi-folding Doors

Garage Doors

French Doors

Patio Doors

Flush French Doors

Facia and Soffits

Conservatory (Refurb & New Builds)

Reviews & Testimonials

Another 5 star review for NexGen Windows

"The team at NexGen windows were spot on from start to finish, the price was very fair and the guys were in and out within 2 days. The new windows and doors look great and really have transformed our house. Will deffo be using NexGen again and recommending them too everyone."

Checkatrade Review - March 2024
Another 5 star review for NexGen Windows

"The workmen arrived as arranged. The workmanship was excellent and they cleared up all debris. Immaculate job. Would definately recommend them."

Checkatrade Review - March 2024
Another 5 star review for NexGen Windows

"Two very nice men installed my patio doors, very polite and friendly. Left my dining end very tidy and very pleased with the doors. Would use them again."

Checkatrade Review - March 2024
Another 5 star review for NexGen Windows

"They cut the damaged wall under the window making the space for the new door and window. They take a lot of care to avoid dust and clean everything to finally install the door. Other chaps plastered the surfaces and installed the couple of tiles to obtain a 100% satisfaction work. Everything was smooth and the result is awesome."

Checkatrade Review - March 2024
Another 5 star review for NexGen Windows

"Couldn’t be happier with the service from NexGen Windows, they looked after us from start to finish. We had a new front door, bay window and 4 other windows installed within 2 days, the house was kept tidy throughout and the attention to detail was brilliant, it has transformed our house. Will deffo be using again and recommending to everyone."

Google Review - March 2024
NexGen Swindon Window Doors
NexGen Swindon Window Doors
CPA Approved Craftsman
All the above information is correct at the time of writing. Introducing a CPA approved craftsman for your home improvements. We are pleased to introduce the aforementioned company as members of the Consumer Protection Association. When looking to purchase home improvements it is vital that you select a professional company to carry out the works.

NexGen Windows are proud to support the NHS
Nexgen Windows are proud to be supporting the NHS and Unite the union through Staff Discounts UK.

Our Awards

We are very proud to have received the awards for Window Supplier of the year 2022/23 and 2023/24. We aim to continue providing excellent options for our customers.
Window Supplier Of the year 2022 - 2023
Window Supplier Of the year 2023 - 2024

Professional, with
over 40+ years
trade experience.

We are a Certass trade association approved company, all of our double glazed windows and doors are delivered to the very highest standard. We have over 40 years experience behind us and can offer an extensive range of products.

Whatever the style and character of your home, we have a product to suit.

NexGen Windows Signature

Online Product Enquiry Form

Complete the enquiry form below, specifying the product(s) you're interested in. Then a member of the NexGen sales team will be in touch to assist.

What would you like NexGen windows to quote for?

Contact Details

  • Double Glazed Window
  • Double Glazed Door
  • Door fitted by NexGen Windows
  • Double Glazed Windows

NexGen Windows & Doors

Double Glazed Windows Swindon | Doors | Conservatory

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