Key Product Features

Our flush sash windows are a fantastic addition to any home. If you would like to learn more about our products, please contact a member of our team. Alternatively, start a quote with us today!

Excellent Thermal Properties

Our flush sash windows offer fantastic thermal performance, and are able to achieve a minimum of A+ energy ratings and u-Values as low as 1.2 W/m2K, ensuring your Lincoln and Lincolnshire home will be warm and cosy no matter how cold it is outside.

Hard Wearing uPVC Materials

We ensure that our uPVC flush sash windows are tested against the UK’s strictest regulations for water tightness and weather resistance. You will never suffer from leaks or water ingress, not even a draught when you choose our flush sash or Super Fortress Flush casement windows for your Lincoln and Lincolnshire home.

High Security Specification

We make sure to utilise the latest in secure technology when manufacturing our windows to give you peace of mind that you and your Lincolnshire home will be safe. The impact-resistant glass and weather-resistant finish craft a PAS 24 accredited product, making it some of the best around.

Transform Your Home's Look: Explore Our Window Colour Selector - Preview Our Extensive Range of Exterior and Interior Shades.

Single Colours

Our single colours are readily stocked and available with quick turnarounds.

Chartwell Green
Black Ash
Anthracite Grained
Nut Tree
Irish Oak
Classic Cream
Golden Oak
White Grain

Dual Colours

Enjoy interior and exterior customisation, as well as shorter delivery times with our stunning dual colour options.

Heritage Colours

Available for fast dispatch, our heritage colours offer shorter delivery times.

Premium Colours

Providing exceptional quality and individuality, our non stocked premium colour are available at an additional cost with extended lead times.


Our Most Popular Colours

Thanks to our in-house spraying facility, we are able to supply uPVC flush sash windows in over 250 RAL colours in satin finish. For colour frames, we offer fast turnarounds for uPVC casement windows in virtually any colour.

Get Your Flush Sash Window Quote Today

Your brand new flush sash window is just a few clicks away. Start your online quote to receive a bespoke estimate with no obligation to book.

Explore Our Virtual Showroom

Can't make the journey to our showroom? We've replicated our products virtually. Whether you're interested in uPVC windows, aluminium doors or other products, we've uploaded all our profiles for you to view from the comfort of your home or on the go. Take a look below!

Benefits of Our Flush Sash Windows

Authentic Colour Range

Amazing Security

Protection From The Elements

Energy Efficient Windows

Traditional Aesthetics, Modern Performance

We appreciate how important it is for your new double glazing to reflect your personal tastes. The flush sash window perfectly replicates the styles of the past, making it the perfect choice for period homes. These spectacular windows are available throughout Lincoln, Lincolnshire and surrounding areas, offering a unique and charming finish for your property.

They combine the traditional character of the 19th Century with the very latest developments in double glazing to give you a stylish and elegant window. They are available in a sculptured/chamfered profile, or our stunning StyleLine and Super Fortress Flush range for slimmer sightlines and a pioneering seamlessly welded sash.

These superb double glazed windows offer the look of traditional wooden windows but with the wealth of benefits modern uPVC provides, with each window enhanced with a range of authentic features and accessories.

If you’re looking to improve your Lincoln or Lincolnshire home, then our uPVC Flush Sash Windows are for you.

Designed To Meet Your Needs

We have a large number of colours and finishes available for all our double glazing products, with our flush sash windows no exception. Whether you want to choose Whitewood, Cream, or Golden Oak, we’ll have a colour to match your needs. With a variety of colour options and hardware modifications available, you’ll find something to suit your Lincoln home.

Download Your Brochure

Don’t forget to download a brochure. They’re packed with plenty of additional information, including technical information, detailed colour swatches and photos for inspiration.


Visit Our Stunning Showroom

Booking an appointment to visit our showroom can help you find the perfect product for your home.


Save On Your Energy Bills

Start considering your energy efficiency and sustainability, and even save on your energy bills by making the switch to our products and services.


Innovative Technology

When you choose uPVC flush sash windows for your Lincoln and Lincolnshire home, you are choosing state of the art technology. Our flush sash windows are crafted from Deceuninck’s Heritage Flush Sash Windows, with the renowned framework blending thermal benefits with incredible security features.

Our windows are fabricated using the most innovative processes, making them robust and hard wearing as well as ensuring that they offer superb performance. These windows will offer further efficiency to your home thanks to the use of the StyleLine and Super Fortress Flush range, which is compliant with the British Standard Kitemark (BSI) and Secured by Design standards. The StyleLine range uses slimmer sight-lines and welded sash, making it so unique. These sculptured windows can be customised to meet all your requirements and needs.

Why Choose Starglaze?

  • Internally glazed to secure your home
  • Double weather seals
  • Optional sash opening restrictors
  • A+ Thermal Performance
  • Authentic Decorative Features

Low Profile Sightlines

The stunning sightlines and slim frames of our flush sash windows offer beautiful outdoor views for years of enjoyment no matter the season.

Highly Secure

Built to the highest specifications, our flush sash windows offer the best security hardware so you can feel safe and secure within your Lincoln home.

Energy Efficient

Stay comfortable all year round with the energy efficiency and heat insulation our flush sash windows provide homes.

Environmentally Friendly

We’re proud to provide flush sash windows which are environmentally and conservation friendly for homes throughout the Lincolnshire areas.

Use our energy calculator to find out how much you could save on your energy bills!

Energy Saving Calculator

Use our energy calculator to find out how much you could save on your energy bills!

double glazed windows waltham

Flush Sash Window Prices Lincoln

Here at Starglaze, we like to offer our customers luxurious Flush Sash Windows at respectable prices. We are highly competitive when it comes to double glazing costs in Lincoln and Lincolnshire, and our Flush Sash Windows are no exception.

You can give our helpful team a call on 01522 512020 for a bespoke uPVC window quote or double glazing quote, or complete our contact form to get in touch online. Our helpful team will be in touch shortly to assist you with your enquiry. Alternatively why not try our online quoting engine for a guide price in moments.

Or click the button below to start your quote for our Flush Sash Windows.



frequently asked questions

What are flush sash windows?
Do flush sash windows leak?
Are flush sash windows secure?
Tripled Glazed uPVC Windows – Mr Cotterill

Tripled Glazed uPVC Windows – Mr Cotterill

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Triple Glazed Flush Sash Windows – Mr Wells

Triple Glazed Flush Sash Windows – Mr Wells

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Flush Sash Double Glazed Windows – Mr Prestwood

Flush Sash Double Glazed Windows – Mr Prestwood

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Conservatory & Aluminium Bi-Folds – Mrs Wilkinson

Conservatory & Aluminium Bi-Folds – Mrs Wilkinson

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