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

GET A QUOTE
Visit our showroom

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
Graham B.
Perfect! The team at DS Windows were friendly, knowledgeable and efficient from start to finish (and patient). Our renovation has gone a lot more smoothly dealing with this company. They understood what my wife and I wanted and fitted around our plans and we are so pleased with the result. Highly recommend 👌
Freja P.
I am very happy with the overall service DS Windows and Doors provided. Donna was very quick with her responses to my questions and sending over a quote for our new windows. The fitters were very efficient and tidy and did a fantastic job. Highly recommend and would use again.
Chris B.
Very impressed. Good quality product. Friendly staff and well fitted door and door frame.
Anna J.
Very happy with my new front door! The process overall was extremeley good. I had lots of chats back and forth to help me decide on a colour and style, and staff were so knowledgeable and helpful and made me mockups and quotes to help me choose. Installation went very smoothly, Rob super professional and kept everything neat and tidy whilst it was being done and explained lots about after care. Very communicative about dates and prices so everything was dealt with smoothly. Very happy with my beautiful front door Thanks!!
Ron de R.
This company was recommended to us. There is no "making good" once the job was completed. It's a all-in job. We are very happy with the way we were dealt with by the office staff and the installers were also very polite and professional. Highly recommended!
Response from the owner:Thank you so much for your kind words and recommendation! We’re really pleased to hear you were happy with both our office team and installers – we’ll be sure to pass your feedback on to them. It’s great to know the whole process met your expectations from start to finish. If you ever need anything in the future, we’re always here to help!
Ann B.
DS Doors and Windows came recommended to us, I cannot say how highly I would recommend this company to anyone looking to replace their existing doors and windows. From beginning to end, the communication, the guys that fitted our doors, all were absolutely amazing, we are thrilled with our new doors, they are all friendly, professional, clean up after themselves and did a fantastic job. It’s difficult these days for some company’s to deliver on what they promise but they did that and more. Thank you to all of you for everything, you are all a credit to the company
Response from the owner:Thank you so much for such a fantastic review! We’re absolutely delighted to hear how happy you are with your new doors and the service you received from start to finish. It means a lot to us that you felt well looked after by both our team in the office and our installers. We take great pride in delivering on what we promise, so your kind words really do mean a lot to everyone here. Thank you again for your recommendation – it’s truly appreciated!
michelle S.
Extremely happy with the professional fitting of my front and back doors, from the start of this journey to the end this company was outstanding. Matt and Rob who fitted the doors were fantastic guys. I would recommend them to family and friends. Thanks for doing an excellent job one very happy customer!
Response from the owner:Thank you so much for your lovely review! We’re thrilled to hear you’re so happy with your new front and back doors and the service you received throughout. Matt and Rob will be really pleased to hear your kind words – we’ll be sure to pass them on! It’s great to know you’d recommend us to your family and friends, that truly means a lot. Thanks again for choosing us – enjoy your new doors!
Robert K.
We decided on laminated doors for improved installation.visited Ds windows & Doors show room and selected a front and back door with fittings installation date was set Jan 27 the first storm of 2026 Ds fitters arrived on time okay to fit the doors ? With that they proceeded with the fitting in the rain they completed approx 3 pm and that’s when it stopped raining and they a
Had done a great job
Response from the owner:Thank you so much for your lovely review! We’re delighted to hear you’re happy with your new laminated doors and the service you received. We’re especially impressed our team carried on through the first storm of the year and still delivered a great result! It’s fantastic to know everything was completed to a high standard despite the weather. Thanks again for choosing us – your feedback is truly appreciated!
Chris H.
Excellent experience - easy to arrange (and rearrange) the visit. Rob did a fantastic job on our door, which now closes and locks beautifully. Highly recommended.
Response from the owner:Thank you for your great review! We’re so pleased to hear you had an excellent experience and that everything was easy to arrange. Rob will be delighted to know you’re happy with the work – it’s great to hear your door is now closing and locking perfectly! Thanks again for your recommendation, it really means a lot to us.
Eleanor S.
Great work from Rob and Matt plus an extra visit from Rob to rectify an issue. They were very helpful and friendly throughout the installation week and made a real effort to prep and clear away at the end of each day. Thanks both
Response from the owner:Thank you for your lovely feedback! We’re really pleased to hear you were happy with the work carried out by Rob and Matt. It’s great to know they kept everything tidy and took the time to make sure everything was just right, including the follow-up visit from Rob. We’ll be sure to pass your kind words on to them. Thanks again for choosing us – we really appreciate it!
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!
5.0
Based on 214 reviews
powered by Google
review us on

Get a FREE No Obligation Quote

Fill out the form and our team will be in touch as soon as possible.

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
Follow us on Instagram
Like us on Facebook
© DS Windows & Doors 2026.
Shaun C.
They did a great job. The door looks great and the whole team were communicative and professonal through the whole process.
Response from the owner:Thank you for your great review! We’re really pleased you’re happy with your new door and the service throughout. It’s great to hear the team kept you well informed and delivered a professional job from start to finish. We really appreciate your kind words – thank you for choosing us!
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
Response from the owner:Thank you so much Amy for such a fantastic review! We’re really pleased you had such a smooth experience from quote through to installation. It’s great to hear the regular updates, communication, and Matt’s workmanship all made the process easy and stress-free. We’ll be sure to pass your kind words on to him and the rest of the team. We really appreciate your recommendation 😊
ELAINE H.
First class service from people who know what they are doing at a reasonable price.would definitely recommend DS windows.
Response from the owner:Thank you for your great review! We’re really pleased you’re happy with the service and the team’s workmanship. We really appreciate your recommendation – thank you for choosing DS Windows & Doors!
Paddy D.
Friendly, professional business from first visit to their showroom to last phone conversation checking all was well. Prompt with giving a quote. No messing about with the pricing, the work was carried out well. Happy to accommodate the date i wanted the work done. Immaculately tidy. And now I have a lovely new front door. :-)
Highly recommended.
Response from the owner:Thank you for your great review! We’re really pleased you had such a smooth experience from showroom visit through to completion. It’s great to hear you were happy with the pricing, communication, and the quality of the work – and even better that you’re loving your new front door! Thanks again for your recommendation, we really appreciate it.
Becky B.
We would highly recommend DS Windows and doors. Excellent service from beginning to end. Professional and work completed to a high standard. We are absolutely delighted with our new door. Thankyou so much again!
June G.
Lyndsey W.
Brilliant service and great job thank you
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
Graham B.
Perfect! The team at DS Windows were friendly, knowledgeable and efficient from start to finish (and patient). Our renovation has gone a lot more smoothly dealing with this company. They understood what my wife and I wanted and fitted around our plans and we are so pleased with the result. Highly recommend 👌
Chris H.
Excellent experience - easy to arrange (and rearrange) the visit. Rob did a fantastic job on our door, which now closes and locks beautifully. Highly recommended.
Response from the owner:Thank you for your great review! We’re so pleased to hear you had an excellent experience and that everything was easy to arrange. Rob will be delighted to know you’re happy with the work – it’s great to hear your door is now closing and locking perfectly! Thanks again for your recommendation, it really means a lot to us.