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

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

GET A QUOTE
Visit our showroom

uPVC Flush Sash Windows

Perfect for period properties

GET A QUOTE
val S.
We had a porch door fitted & are very pleased with it. All the people are friendly & helpful. We would highly recommend DS Windows & Doors.
Neil R.
Great set of doors, great price and expertly installed. Recommended.
Alan E.
Excellent communication, all visits were on time. Instalation day the team was on time and worked very efficiently despite a bitterly cold day, all was completed (4 windows in one day) and the finish/quality of Instalation was excellent.
All cleaned up and explained the functioning of the windows (locks/ventilation etc)
Entirely satisfied would definitely recommend DS Windows.
Alan
L C
Everyone was very helpful and lovely. The whole process was very easy and straight forward.
Anne S.
Prompt to quote, prompt to visit to confirm quote, prompt to deliver and install a composite door. Cannot fault the service , friendly, efficient, tidy, considerate.
Reloved L.
Fantastic Service from Start to Finish! We received emailed confirmations and updates throughout. The quote was set out very professionally as was all the paperwork. All the team were friendly and professional. The installer Rob was great. He turned up exactly on time both days, he was friendly, respectful, professional and he kept everything clean and tidy. Great Job by all of you. We will be having them back to do more work in a few months 🙂
Mike D.
Arrived on time, friendly and efficient. Excellent job done in replacing two windows. Neat and very tidy job done. No mess, excellent job. Highly recommended
Shaun C.
They did a great job. The door looks great and the whole team were communicative and professonal through the whole process.
Amy J.
So nice to have some old school style customer service from start to finish. From getting a quote to lots of emails back and forth the service was 10/10.
Regular updates and options given making the whole experience so easy and professional.

Come installation day, emails few days before highlighting the order of the day. Matt arrived on time and is such a lovely and hard working individual. Regular check ins from Matt throughout the day to make sure I was happy.

Once All complete, all cleaned down, rubbish taken away and porch brushed down followed by an explanation about the locks, key box the cleaning of the door. Even down to a little pot of touch up paint should I incur any scratches over time.

Finished job so good it makes the windows look tired so already booked in for a quote to replace 😂.

I would highly recommend DS Windows and Doors, they are a small local business, very competitive on price but customer service is first class.
Thank you all.
Amy J
Louise D.
From start to finish this was a great company to work with. We got a quote for a new composite door very quickly and the ordering process was easy. Our door was fitted today and it’s just what we wanted. All staff have been really friendly and helpful. Highly recommend.
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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© DS Windows & Doors 2025.
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!
Helen Z.
Outstanding service from start to finish. Nothing was too much trouble for Darren and Judith. Our queries were answered promptly. Mat and Rob were very polite and courteous and left everything clean and tidy upon completion. A very professional company who we will definitely use again. We highly recommend DS Windows & Doors.
Response from the owner:Hi Helen, so pleased to hear about your positive experience with us – thank you once again for choosing DS.
L C
Everyone was very helpful and lovely. The whole process was very easy and straight forward.
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.
Alan E.
Excellent communication, all visits were on time. Instalation day the team was on time and worked very efficiently despite a bitterly cold day, all was completed (4 windows in one day) and the finish/quality of Instalation was excellent.
All cleaned up and explained the functioning of the windows (locks/ventilation etc)
Entirely satisfied would definitely recommend DS Windows.
Alan
Margaret W.
Excellent experience from start to finish. The company went to great lengths to make sure that our bifold doors were right for our specific need for safe disabled access.The finished result is just what we wanted.Highly recommended we will definitely be using them again.
Anne S.
Prompt to quote, prompt to visit to confirm quote, prompt to deliver and install a composite door. Cannot fault the service , friendly, efficient, tidy, considerate.
Leonard C.
Matt & Rob turned up on time and set to work immediately. Excellent doors professionally installed. Absolutely no problems at all. Would highly recommend. Thanks DS Windows & Doors
ELAINE H.
First class service from people who know what they are doing at a reasonable price.would definitely recommend DS windows.
Tony W.
An overwhelmingly positive experience. Replaced my door with a better quality composite one. Effortless (from my point of view), quick, accurate measurements and quote, installed it in one morning and it looks fantastic (not to mention being much more secure). The installers were friendly and polite, did a high quality job and cleaned up after themselves- couldn’t ask for more.