Lincoln's top reviewed, family-run double glazing company

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Lincoln's top reviewed, family-run double glazing company

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Visit our showroom

uPVC Flush Sash Windows

Perfect for period properties

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June G.
clare R.
I love my new door!! Professional service throughout and very accommodating when I changed my mind on design. Thank you! ⭐️⭐️⭐️⭐️⭐️
Barry W.
Good product very neat and hassle free fitting had two new windows upstairs bedroom and bay window in front room all done in one day very neat and tidy job would definitely recommend
Andrew T.
Excellent job professionally executed. The job was a simple replacement of some blown double glazing units but from the initial measuring to final fitting, the service from DS Windows & Doors was exceptional. No hard sell from the sales rep, and the fitter, Rob was excellent, friendly and very professional. I would not hesitate to recommend DS Windows & Doors and they will be my first call for any future window or door needs.
Lyndsey W.
Brilliant service and great job thank you
Annaliese H.
Phenomenal service throughout. Jim was very informative about our options and was very helpful. Rob came and put our new front door in and did an excellent job. He was friendly and polite. We are extremely happy and would highly recommend. Will definitely use again in the future!
Steve H.
A very professional company from contact to fitting.
A few queries before fitting were cleared up...thanks Donna. Then on fitting day Rob and and Matt were very professional and courteous. Their work was very tidy and all cleaned up at the end. I would happily recommend this company and use them again.
Ryan W.
Had a new composite front door installed today by Matt. Matt was very friendly and polite, cleaned up after himself and made sure i was happy before he left. The customer experience from beginning to end has been great. No pushy sales team just years of experience on the job and all questioned answered and explained. You can tell this is a family run business and not a nationwide company that do a job and leave, they are people at the end of the day and interact like people. Its been a pleasure doing business with the team. Thanks everyone!
Ken N.
Friendly service. All staff helpful throughout the process. Fair price. Really happy with the door supplied, the quality of the fit and the service throughout. Would highly recommend.
Marysia G.
See below pics!
Had bifolds fitted by Matt and Rob. Super efficient,tidy and friendly! Doors look amazing!
Would highly recommend DS windows!
Thanks guys
Irish Oak uPVC Flush Sash Window

uPVC Flush Sash Windows

uPVC Flush Sash windows are designed to mimic the look of traditional timber windows, but without the hassle of maintenance.

The sash of the window sits flush within the outer frame, giving a flat appearance, retaining the style and elegance of timber windows, but with all the thermal benefits PVC has to offer.

The flush sash range of uPVC windows is perfect for period properties and those in conservation areas due to their timber-like appearance. 

Benefits of our uPVC windows

Thermally efficient to keep the heat in

Double & triple glazing options available

10 year insurance-backed guarantee

CERTASS approved installers

Ideal windows for conservation areas

Conservation areas have strict requirements when it comes to replacement windows, but with flush external contours our uPVC flush sash windows are in keeping with period properties. You should always consult with your local planning/conservation officer before replacing your windows, but our team are on hand to discuss your needs.

Agate Grey Flush Sash Windows

Slim & aesthetic profiles give the appearance of timber

Why choose us?

We're an Honest & reliable local business you can count on

We offer guaranteed competitive pricing to our customers

We don't 'fit & forget', offering great aftercare

We treat your home with care, tidying up after ourselves

uPVC flush sash windows are a popular choice for modern homes due to their sleek and contemporary design. But, their benefits go beyond just aesthetics. Here are some advantages of flush uPVC windows:

  • Energy Efficiency: uPVC flush sash windows are designed to provide excellent thermal performance. They are fitted with multi-chambered frames and energy-efficient glass, which work together to keep your home warm in winter and cool in summer. This leads to lower energy bills and a more comfortable living space.
  • Easy Maintenance: uPVC flush sash windows require minimal maintenance, making them an excellent choice for busy homeowners. They are easy to clean and do not require painting or staining. With just a little care, they will look great for years to come.
  • Enhanced Security: uPVC flush sash windows provide enhanced security for your home. They are fitted with high-quality locking mechanisms and reinforced frames, which deter intruders and provide you with peace of mind.
  • Sound Insulation: uPVC flush sash windows are also effective in reducing outside noise, creating a more peaceful and comfortable home environment.
  • Aesthetics: Finally, uPVC flush sash windows are designed to provide a clean and streamlined appearance that complements both traditional and modern architecture. They are available in a range of colours and finishes, allowing you to create a personalized look that matches your style and taste.

In conclusion, uPVC flush sash windows offer many benefits, from energy efficiency to enhanced security, easy maintenance, and a sleek appearance. If you’re looking for a modern and practical window solution, consider uPVC flush sash windows for your home.

More than 200 5-star customer reviews

We pride ourselves on offering amazing service – right from the initial enquiry through to installation and aftercare – and our 200+ reviews from happy customers reflect this.

We’re confident our family-run double glazing company is the most trusted choice in Lincoln and the surrounding areas, and the majority of our work comes from repeat customers and recommendations.

With DS Windows & Doors you’re in safe hands when it comes to replacing your uPVC windows in Lincoln.

DS Windows & Doors - Visit our showroom!
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DS Windows & Doors

Lincoln’s top reviewed, family-run double glazing company

  • Unit 5 Blackwood Court, Teal Park, Lincoln, Lincolnshire, LN6 3AE
  • 01522 305383
  • info@dsaluminium.co.uk
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clare R.
I love my new door!! Professional service throughout and very accommodating when I changed my mind on design. Thank you! ⭐️⭐️⭐️⭐️⭐️
Graeme B.
All work was done to a very good standard ,quickly and efficiently and the men doing the work were polite and professional and the window they installed is really good. I would recommend DS Windows & Doors.
Response from the owner:Hi Graeme, thank you for taking the time to leave us a review. We're so happy you're pleased with the service you received - thanks again for choosing DS.
Ken N.
Friendly service. All staff helpful throughout the process. Fair price. Really happy with the door supplied, the quality of the fit and the service throughout. Would highly recommend.
Karen M.
Very efficient and kept us updated from start to finish - highly recommend.
Response from the owner:Hi Karen, thanks so much for your kind words – reviews really help us as a small, family-run business. Many thanks for choosing DS Windows & Doors.
Esther B.
Response from the owner:Hi Esther, thank you for taking the time to leave us a review. We're so happy you're pleased with the service you received - thanks again for choosing DS.
Julian H.
Had all my old windows and doors replaced. Excellent service from friendly helpful staff Darren, Judith, Rob and Matt. Installers were ptompt, efficient and ensured that everything was cleaned up afterwards. Would be happy to recommend DS Windows to anyone thinking of replacing windows or doors. Thanks.
Response from the owner:Hi Julian, thanks so much for your kind words – reviews really help us as a small, family-run business. Many thanks for choosing DS Windows & Doors.
Alan D.
Fantastic service,very pleased with the service we had from the very start to the end. Brilliant team who were both helpful and informative.
Response from the owner:Hi Alan, thank you for taking the time to leave us a review - we really appreciate it!
Jo J.
We are very happy indeed with DS windows and doors. From initial enquiries; to measuring up; to fitting all of the windows we can not fault anything. Matt and Rob (the fitters) did an excellent job, in a friendly, but professional manner. They fitted the windows so neatly and cleaned up thoroughly.
We would highly recommend DS windows and doors
Response from the owner:Hi Jo, thanks so much for your kind words – reviews really help us as a small, family-run business. Many thanks for choosing DS Windows & Doors.
Charlotte M.
Rob was very helpful when fitting my door. Despite coming across a problem, he ensured everything was perfect before he left.
Response from the owner:Hi Charlotte, so pleased to hear about your positive experience with us – thank you once again for choosing DS.
Freddie R.
We had an issue with our bifold doors where they were not sealing shut and catching on the bottom. We contacted DS windows and they quickly arranged someone to come out and have a look. The gentleman who came was very friendly and did an excellent job in sorting the issue. I would definitely recommend DS windows for their quick, professional and friendly service! We would certainly use them again!
Response from the owner:Hi Freddie, thanks so much for your kind words – reviews really help us as a small, family-run business. Many thanks for choosing DS Windows & Doors.