John C
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Start by contacting our friendly team for advice or a no-obligation quote. We’ll listen to your needs and help guide your project
High-quality windows, doors & conservatories manufactured & installed
With over 50 years of experience across Lincolnshire, we are a trusted name for home improvements. Take a look below to explore our full range of products.
Windows
Energy-efficient uPVC and aluminium windows in styles to suit any home. Built for comfort, security, and lasting performance.
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Doors
Secure, stylish doors in uPVC, aluminium, and composite options. We offer a variety of styles and colours to complement any property.
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Composite Doors
Durable, secure, and stylish front doors available in a wide range of colours and finishes.
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Conservatories
Add living space with a made-to-measure conservatory in a range of styles. Designed for year-round use.
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Conservatory Roof Replacements
Upgrade your conservatory with a tiled, solid, or glass roof for comfort all year round.
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Porches
Add style, security, and insulation with a made-to-measure porch from Cliffside Windows.
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Why Choose Cliffside Windows?
Cliffside are experienced specialists in the manufacturing and installation of double glazed aluminium and uPVC products. We’ve been trading for over 50 years and we pride ourselves on the exceptional quality of our products, our installation and our customer service. Our team of experienced craftsmen ensures that all of our products are installed to the highest possible standard.
Trading for over 50 years
Family Run, Friendly Company
Quality Products
Energy Saving Options Available
Visit Our Lincoln Showroom
See our products up close at our Lincoln showroom. It’s the perfect place to explore styles, ask questions, and chat with our friendly team about what’s right for your home.
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How We Work
A smooth, straightforward process from first enquiry to final fit, with expert support every step of the way.
Design
We’ll help you select the right products, styles, and finishes for your home. Whether you visit our showroom or speak to us remotely, we’ll tailor everything to suit you.
Expert Installation
Our experienced installers will carry out the work with care, attention to detail, and minimal disruption.
Aftercare
All our installations come with an insurance-backed guarantee. If you ever need us in the future, our local team is on hand to help.
What Our Customers Say
Read real reviews from happy homeowners.
We asked Cliffside to replace our old conservatory including new foundation’s. We chose the solid roof option from Lela and had the interior plastered and...
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We have used cliffside for a while, they carry out all our repairs and new windows/doors on the rental properties, we have found the fitting...
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Martin & Co Lincoln
Via Google
Had new windows installed, brilliant customer service they made everything very easy and quick 10/10 would recommend to everyone.
Georgia Hancock
Via Google
I just had a new door with windows fitted by Cliffside Windows and extremely happy inside and out - a light-filled hallway and fantastic curb...
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Sarah Watson
Via Google
We asked Cliffside to replace our old conservatory including new foundation’s. We chose the solid roof option from Lela and had the interior plastered and the floor tiled, complete with under floor heating. All the staff a contractors were very professional and completed the works to a high standard. Communication with Cliffside was easy and any questions or issues we had were dealt with promptly.
We’re both absolutely delighted with our new room now being able to use it all year round. We would definitely recommend this company, thanks again Cliffside.
John C
Via Google
We have used cliffside for a while, they carry out all our repairs and new windows/doors on the rental properties, we have found the fitting staff to be helpful and polite when collecting keys and carrying out works. we would recommend them.
Martin & Co Lincoln
Via Google
Had new windows installed, brilliant customer service they made everything very easy and quick 10/10 would recommend to everyone.
Georgia Hancock
Via Google
I just had a new door with windows fitted by Cliffside Windows and extremely happy inside and out – a light-filled hallway and fantastic curb appeal! Thank you Cliffside Windows!
Sarah Watson
Via Google
Latest News
Home improvement advice
Can You Replace a Door Without Replacing the Frame?
When considering a door upgrade for your home, a common question that many homeowners ask is whether they need to replace the entire door unit, including the frame, or if...
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Home improvement advice
How to Maintain Your uPVC Windows and Doors for Long-Lasting Performance
UPVC windows and doors are the most popular home improvement products among homeowners across Lincolnshire. They're durable, energy-efficient, and don't need much looking after compared to wooden alternatives. But that...
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Windows
uPVC vs Aluminium Windows: Which is better for you?
Picking new window frames is about striking a balance between thermal performance, style and budget. Cliffside Windows supplies and installs uPVC and aluminium windows across Lincolnshire, so you can compare...
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uPVC doors
Signs It’s Time to Replace Your Old Windows and Doors
For a homeowner, it can be tempting to put off replacing windows and doors in favour of quick fixes or simply learning to live with their shortcomings. It's easy to...
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