Surrey’s no.1 reviewed and rated double glazing company

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Checkatrade Reviews



Our Promise

Alaskan Windows Ltd built its good name and reputation for double glazing in Sutton and throughout London and Surrey over many years through our no pressure approach to our customers and dispelling many myths about doors and windows. We promise you:


No high pressure selling


No false discounts


Honest advice


We’re not satisfied until you are

Featured Products

windows Sutton, London


Doors Sutton, London


Sash windows Sutton, London

Sliding Sash Windows

French Doors Sutton, London

French Doors

Patio Dors Sutton, London

Patio Doors

Bi-Fold Doors Sutton, London

Bi-Fold Doors

Casement windows Sutton, London

Casement Windows

Tilt & Turn windows Sutton, London

Tilt & Turn Windows

Flush Casement windows Sutton, London

Flush Casement Windows

French windows Sutton, London

French Casement Windows

Sash windows Sutton, London

Sliding Sash Windows

Bay windows Sutton, London

Bow & Bay Windows

Secondary Glazing Sutton, London

Secondary Glazing

uPVC doors Sutton, London

Entrance Doors

Composite doors Sutton, London

Composite Doors

Stable doors Sutton, London

Stable Doors

French doors Sutton, London

French Doors

Patio doors Sutton, London

Patio Doors

Bi-Fold doors Sutton, London

Bi-Fold Doors

Double Glazing London

High-Performance Double Glazing

Alaskan Windows specialises in high-performance products that enhance the comfort of your home. Our products are designed to provide quality performance, utilising a fantastic profile that offers thermal-efficiency and durability.

We offer a stunning collection of fabulous uPVC windows and uPVC doors that are manufactured using Liniar profile technology, the UK’s finest brand. These market-leading double glazing profiles provide a multitude of benefits for homeowners around London.

Its state-of-the-art profile features a four chambered design that is thermally-efficient and able to achieve incredible energy ratings of up to A+! The innovative design incorporates a patented double-action ‘bubble’ gasket offering an improved seal.

Another benefit of our thermally-efficient uPVC double glazing is its eco-friendly composition. The entire frame is lead-free and entirely recyclable, which ensures a sustainable manufacturing process to lower carbon footprint. The great benefit is they can be reused.

Our double glazing is high performance because of its incredible durability due to the inherent robustness of uPVC. We provide a sustainable solution that is energy-efficient and enhances the security of your London home.

We also partner leading composite door manufacturers to bring homeowners in London an incredible range of long lasting, hard wearing, beautiful double glazed composite doors that are perfect for any type of property.

Flexible Designs

We offer virtually any kind of windows you can think of, benefiting from high energy-efficiency profiles and top quality glazing. We even provide various glazing options to customise exactly to your specifications.

Our French windows adopt a European design that can add charm as well as function to your London home. Alternatively, you may feel new sliding sash windows would be a fitting home improvement to uphold the classic period character.  

We offer the latest technologies in double glazing, including high-security multipoint locking mechanisms able to achieve Secured by Design certification. We provide optional child restrictors to ensure the safety of your family in your home.

Tailored Double Glazing

With our double glazing, you are able to achieve a bespoke look for your home whether traditional or contemporary. Whether you prefer uPVC or aluminium, they are both high-quality and cost-effective. We offer a broad palette of colours to finish your double glazing and customise them to complement your property.

There’s a vast selection of hardware including handles, hinges, locks and letterboxes available in different styles and textures. We also offer decorative options such as period furniture to uphold the authentic appearance of your property. We have the options for you to make a statement or stay in keeping with the feel of your home.

Stunning Aesthetics

With our complete collection of double glazing, there is so much choice, as many of our product options that we provide will complement your home. No matter what style of home you have or whatever your tastes, we’ll have the perfect combination that will enhance the aesthetics of your home.

The choice is incredible. We ensure that there are great possibilities for every project, on any budget. Our aluminium bi-fold doors seamlessly blend the interior and exterior of your property. The high-quality glazing makes a real impact to not only the look but the feel of your home.

Our Aluk aluminium bi-fold doors offer outstanding functionality as well as beautiful aesthetics, opening and configuring in a number of ways to provide space to enjoy your home and the outdoors. Our sleek design of the profile offers incredible sightlines, resulting in unrestricted views.

Double Glazing London

Accredited Double Glazing London

Our service has been consistently ranked number one with over 1500 customer reviews on Which?, Checkatrade, and Trustatrader, which supports the reliability of our outstanding service for double glazing in London.

As a family run business in London, we pride ourselves on delivering exceptional service to each and every customer. The many positive reviews that we have received from our satisfied customers is testimony to this.

We offer uPVC, composite, and aluminium double glazing in a bespoke range of stunning designs. Our selection includes everything from classic sliding sash windows, which are very popular around London, to our aluminium bi-fold doors.


Here at Alaskan Windows, we take great satisfaction in knowing we keep a very low carbon footprint with our double glazing. We ensure this by using very eco-friendly materials, such as aluminium, uPVC, and composite.

Our profiles are completely recyclable and highly durable, which saves using more resources and results in a sustainable manufacturing process. All this helps to minimise detrimental effects to the planet.

In addition, our thermally-efficient profiling systems, you’ll lower your own carbon footprint. Our double glazing improves the heat retention of your home which results in saving energy with your heating system.

Double Glazing Prices in London

Enjoy all the benefits of enhancing your home at fantastic prices on high-quality double glazing by using our online quoting engine. You’re under no obligation to buy and it is free to use, so why not check out how much you could save now!

Alternatively, we have a highly competent customer service team who are here to help you with your purchase enquiry. Head over to our contact page and complete the quick form, and one of our friendly members of staff shall act promptly to respond to you.

Start Quote

Frequently Asked Questions

Double glazing is a type of glazing used for windows and doors that features two layers of glass. In between the glass is a layer of argon gas. This helps with thermal performance and noise pollution.

Double glazing has many benefits. You can benefit from enhanced security, durability, thermal performance and a reduction in noise pollution. Double glazing is also available in a range of customisable options.

Our double glazing has been stringently tested to ensure that it exceeds standards of quality. Our double glazing that will stand the test of time, and won’t be prone to rotting, warping, cracking or fading.

Recent Customer Feedback

  • Perfect professionalism from first point of contact to cleaning up after work. Very consistent and thorough in communication. Prices are upfront and fair and most importantly - finished product is perfect. So happy I found them on Checkatrade and decided to solicit a quotation from them. Local London shops and nationwide leaders didn't measure up!

    Customer, Dulwich, London
  • Three workmen carried the work out in just two days, friendly hard working. Douglas and Alastair very friendly and helpful salesmen - never pushy. Great family business - reliable and efficient from start to end.

    Mr Jeeves, Croydon

Industry Leading Accreditations