Distinctive and authentic flush sash windows, ideal for Dorset conservation areas

Our high-quality flush sash windows from the Timeless collection intelligently combine authentic timber window design alongside the outstanding thermal qualities that uPVC offers. Glazed and framed to the highest levels of efficiency, our flush sash range are also exceptionally secure and very low maintenance in comparison to their timber counterparts.

Seamlessly bridging the gap between standard uPVC and luxury timber window offerings, whether your home is new or old it will become warmer and cheaper whilst still retaining its enviable charm with a Premier Windows flush sash window installation.

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  • Security
  • Energy Efficiency
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  • Security

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    Secure peace of mind

    Offering peace of mind at all times, our flush sash windows offer exceptional security features. These include secure key locking handles, combined with a proactive multi-chamber constructed frames that provide remarkable structural strength. Complete with BS kitemark, BBA, BS7950 & PAS 023/024 accreditation for security, whilst being able to take advantage of tough triple glazing too.


    Energy Efficiency

    Efficient flush sash windows with double glazing that could help you save up to £105 per year

    Energy efficiency features

    Window heat loss can account for up to 30% of total heat loss within Dorset homes. Our flush sash windows boast energy saving ‘A’ ratings, a maximum U-Value of 1.3 W/m² whilst offering severe wind & water resistance; passing the BS6375 test. To ensure that we achieve the highest possible window energy ratings, we also include EcoClear® as standard within all our double-glazed units; minimising heat loss and reducing heating bills further.

    *When upgrading a typical single-glazed, gas-heated home to A+ rated double glazing. Savings are per year and are rounded to the nearest £5. Statistics provided by Energy Saving Trust



    Timber look uPVC window Bournemouth

    Flush sash window authentic period design

    Our flush sash windows offer a superb conservation timber alternative to Dorset homeowners looking for accurate, effortless design.

    Chartwell green colour upvc flush sash windows - a close up Bournemouth

    Seasoned handcrafted flush sash windows

    Accommodating all kinds of properties, the classic sash fits perfectly flush into the frame which provides an authentic and ultra-sleek design.

    uPVC windows installed onto a cottage Dorchester

    History without the hassle

    These fantastic flush sash windows ideally echo acclaimed traditional timber construction with the desirable low maintenance benefits of uPVC.

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    2 new doors, patio doors & window

    "Nathan was passionate about his company, giving us confidence to use him. Workers, very clean and efficient, pleased with finished result."

    Checkatrade Review - March 2019

    Installation of 2 windows & a front door

    "Exceptional service and quality from start to finish."

    Checkatrade Review - October 2019

    New front door supplied and fitted

    "Fitters arrived on time and did a very good job. They were quietly efficient and ensured I knew everything I needed to know about operating and maintaining the door. The area in which they had been working was left clean and tidy. These two young men behaved professionally and are a credit to Premier Windows."

    Checkatrade Review - January 2019

    New front door fitted

    "The door quality is better than I expected, the quality of workmanship was very good. Iain is a credit to the company. Polite, helpful, courteous, very tidy. I felt assured going on to work, that the job would be completed to my satisfaction. From beginning to end this was an excellent company. I would have no hesitation in using them again or recommending to friends and family. Thank you Nathan and Team."

    Checkatrade Review - October 2019

    6 uPVC windows, 1 porch & 2 doors

    "Very satisfied from start to finish - owner and staff very helpful and professional, nothing too much trouble, highly recommend."

    Checkatrade Review - September 2019

    New Front Door

    "Quality product, fitted expertly by Ian the fitter."

    Checkatrade Review - April 2019

    Front door and patio doors

    "Work was completed quickly and to a very high standard."

    Checkatrade Review - August 2019

    New windows and doors

    "A very professional service carried out to a high standard. Nothing was too much trouble for them. I wouldn't hesitate to recommend this company."

    Checkatrade Review - July 2019

    New front-door and sash window

    "Really pleased with the end result."

    Checkatrade Review - March 2019

    Patio door fitted

    "Very good service, polite manner and worker."

    Checkatrade Review - September 2019

    UPVC conservatory with bifold door and skylight Dorset.

    Based on customers reviews, our average score is 10/10





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    Showroom coming soon!

    Our Showroom isn't quite finished yet, so please get in touch if you require further information on our products.

    Contact us

    Installing windows, doors & conservatories in the surrounding areas of Weymouth, Portland, Dorchester, Bridport, Beaminster, Swanage, Poole, Bournemouth & Yeovil.

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    Please view our customer & staff announcement in regards to COVID-19 View announcement