Colin fitted 4 windows in my first floor flat with his assistant/colleague Jay. The work was completed over 3 days. It is an absolutely amazing result, the windows are beautifully fitted and look fabulous. I had 3 sash windows: one 3-window bay (living room), one in the kitchen, one on the bedroom. The bathroom window had a beautiful mayflower pattern. The difference in appearance, warmth and blocking of outside noise is remarkable. The guys were really hard-working, respectful and considerate and always hoovered and cleared up well. On the last day I felt totally at ease leaving them in my flat to finish (unusual for me) and came home to a wonderful transformation. If you need new windows, the expertise of Sanderstead Windows will change your life! Thank you so much. Roxana
20 Years Experience
Family Owned
Sustainable
Customer Recommended
No Pushy Sales
NATURAL LIGHTING SOLUTIONSWhy Choose Our Roof Lanterns?
A roof lantern is a glazed structure installed on flat roofs to maximise natural light entering your living space below. Unlike traditional roof windows or flat rooflights, roof lanterns extend upwards creating a stunning focal point whilst dramatically increasing natural daylight. Our premium aluminium roof lanterns combine sleek design with exceptional thermal efficiency, perfect for modern and traditional homes across Croydon and South London.
Maximise Natural Light in Your Home
Our roof lantern installations dramatically increase the amount of natural light entering your living space, creating an impressive sense of openness and space, regardless of the sun’s position. The sleek design acts as a stunning focal point whilst providing amazing views of the sky above, perfect for stargazing!
Studies show that homes with roof lights can increase natural lighting by up to 300% compared to traditional windows, significantly improving wellbeing and reducing electricity costs through decreased reliance on artificial lighting.
- Colours
- Glazing
Available Colour Options
Our roof lanterns are available in three stunning finishes: sophisticated anthracite grey, bold jet black, and classic pure white. Each colour option is designed to complement both traditional designs and contemporary architecture perfectly.
Security & Glazing
Every roof lantern features high-performance 28mm double glazing for superior thermal performance and acoustic dampening. Security includes:
- Anti-tamper screws and enclosed glazing
- Patent-pending glass lock technology
- Security clamping plates preventing panel removal
- Multi-chamber Thermlock® technology for maximum thermal efficiency
Expert Installation You Can Trust
As a family-run business with over 20 years of experience, we specialise in bespoke roof lantern installations across Croydon and South London. Our expert team ensures every home improvement project meets the highest standards of workmanship.
We’re fully accredited and 95% of our work comes from customer recommendations. Our consultative approach means no pushy sales – just honest advice and exceptional service with complete peace of mind through our 10-year guarantee.
Roof Lantern FAQs
Common questions about our roof lantern installations, covering everything from planning permission to maintenance requirements.
Contact UsMost roof lanterns fall under permitted development rights, though conservation area properties may need approval. We'll advise on requirements.
Our roof lanterns come in a range of sizes up to 3.2m x 6m without tie bars, perfect for most home improvement projects.
28mm double glazing and Thermlock® technology provide exceptional thermal efficiency, reducing heat loss whilst maximising natural daylight and fresh air circulation.
Yes, we offer designs suitable for conservation areas, maintaining traditional aesthetics whilst incorporating modern thermal performance and contemporary design elements.
Minimal regular maintenance is needed - occasional cleaning and checking seals ensures optimal performance. Our 10-year guarantee provides additional peace of mind.
Customer Reviews
Roxana Asad
Colin fitted 4 windows in my first floor flat with his assistant/colleague Jay. The work was completed over 3 days. It is an absolutely amazing result, the windows are beautifully...
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Lucy Gray
Colin and John from Sanderstead Windows recently fitted new windows across my whole 2 bed house, a beautiful new front door, and stunning bifold doors across the back. They completely...
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Emma Ball
Amazing experience from start to finish. Colin was incredibly quick to reply, and quoted a very reasonable price. On installation day, it was 30 degrees, but Colin and the other...
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Nadia Charrion
Colin is one of a kind with such a fantastic work ethic! I couldn’t be more pleased with the results of my windows, he went above and beyond to ensure...
Read more
Roxana Asad
Lucy Gray
Colin and John from Sanderstead Windows recently fitted new windows across my whole 2 bed house, a beautiful new front door, and stunning bifold doors across the back. They completely transformed my property front and back in only 4 days, working through one of the recent mini-heat waves.
I can’t fault their workmanship; professional, friendly, unbelievably clean and tidy at the end of each day. I felt more than comfortable leaving them alone in my house every day whilst I was out, and even locked up after themselves when I was home late.
Payment procedure clear and efficient.
Great work, great guys. Would highly recommend (and already have) to anyone needing new windows/doors.
Thanks guys. 👍🏻
Emma Ball
Amazing experience from start to finish. Colin was incredibly quick to reply, and quoted a very reasonable price.
On installation day, it was 30 degrees, but Colin and the other window fitter worked tirelessly. They even made good of some pebbledash that needed to be chipped off. I’m so happy with the result, and love my new windows.
An all-round pleasure to work with – massively recommend!
Nadia Charrion
Colin is one of a kind with such a fantastic work ethic! I couldn’t be more pleased with the results of my windows, he went above and beyond to ensure everything was perfect and that I was very happy with the work.
From the initial contact to the completion of the job, the entire process was smooth and professional. The windows are absolutely amazing and my expectations were exceeded and I honestly couldn’t recommend him enough.
Outstanding quality work, very satisfied and happy with his service provided.
The standard of work was amazing, he is conscientious worker.
Highly recommend and already passed on Colin’s details to family and friends.
