Flat Rooflights in Southeast England
Energy-Efficient Flat Rooflights for Homes and Businesses in Southeast England
Brighten your surroundings.
Bespoke-made flat rooflights for homes, commercial buildings and extensions.
Rooflights differ from roof lanterns in that they sit level with the roof, ensuring a neat, minimal appearance.
Our bespoke rooflights are available in various styles, including fixed, opening, pitched and flush rooflights and are customised to suit your needs accordingly.
We are FENSA-registered and guarantee your rooflights will be installed to the highest industry standards.
Made from durable aluminium, glass, polycarbonate or tiled finishes, our rooflights are 100% weather-resistant, energy-efficient and built to last!
Design a rooflight for your flat roof today.If ventilation is one of the reasons for installing a rooflight, you will have the choice of our manual or electric opening rooflights; both are easy to use and improve the energy efficiency of your property.
Our electric opening rooflights are managed using a remote control system and can even be installed with weather sensors, ensuring your rooflight closes whenever it rains or the temperature drops below a certain level.
Our experienced rooflight installers across Southeast England bring expertise and will guide you through everything you need to know.
Key features of flat rooflights:
- Bespoke flat rooflights with intricate detailing
- Fixed, manual and electrical opening rooflights
- Available in: tiled, aluminium, glass and polycarbonate
- Pitched and flush rooflights for flat roofs
- Suited to homes and commercial buildings
- Robust, durable and 100% weather-resistant
- Energy-efficient rooflights for year-round comfort
- Fast and hassle-free rooflight installation
- Traditional Rooflights
- Modern Rooflights
- Fixed Rooflights
- Opening Rooflights
- Tiled Rooflights
- Aluminium Rooflights
- Glass Rooflights
- Polycarbonate Rooflights
- Velux Rooflights
- Electric Opening Rooflights
- Skylight Rooflights
- Walk-On Rooflights
- Flush Rooflights
- Pitched Rooflights
- Large Rooflights
Why choose us to install your flat rooflight in Southeast England:
Fully Compliant
FENSA-Registered Flat Rooflight Installers
Our flat rooflights are fully tested and compliant with UK Building Regulations.
At Instant Windows & Doors, our rooflight installers are FENSA-registered; FENSA stands for Fenestration Self-Assessment and is a government-authorised scheme that monitors building regulation compliance for replacement windows and doors.
In friendly terms, a FENSA certificate assures you that the rooflight installer who fitted your rooflight has complied with Building Regulations and registered the installation with the Local Council; both are legal requirements!
If you ever decide to sell your home or business premises, proof of them is essential.
Insurance-Backed Guarantee
Including a Certificate of Authenticity
Invest with confidence. At Instant Windows & Doors, we use the best energy-rated systems available on the market and include a 10-year insurance-backed guarantee with every flat rooflight installation.
It is also worth mentioning that our flat rooflights are backed by the Home Improvement Protection scheme - for your safety and investment security.
7 styles of rooflights for homes & businesses in Southeast England:
Fixed Rooflights
A non-opening fixed rooflight offers exceptional insulation against cold, damp weather while maximising natural light all year round.
Suited to areas where ventilation is not a priority, their sleek, minimal design is highly weather-resistant, energy-efficient, and can be customised to suit modern and traditionally styled properties.
Fixed rooflights are a cost-effective, low-maintenance solution.Opening Rooflights
Need ventilation? Our opening rooflights for flat roofs feature a unique mechanical opening design that allows you to open and close your rooflight effortlessly.
Control the natural light and air flowing throughout your property - an energy-efficient enhancement to any home or business.
Electric opening rooflights are also available, as discussed in more detail below.Electric Opening Rooflights
Smart rooflight? Are you an eco-conscious home or business owner looking to make your property more energy-efficient? Electric opening rooflights are managed using a remote control and can be installed with weather sensors to make your life easier.
Introduce a touch of sophistication to your home or business with a smart rooflight that opens and closes depending on the weather.
Open it in the morning and know it will close automatically when the rain starts ... brilliant!Pitched Rooflight
Unlike flush rooflights, pitched rooflights angle upward, resulting in a beautifully-lit indoor environment. Pitched rooflights are considered stylish and offer a classic aesthetic to any home or business looking to direct more light into their properties. To top it off, there's no need to worry about leakages.
Our pitched rooflights provide excellent drainage for those rainy days.
Flush Rooflight
Flush rooflights sit level with your roof, delivering a neat, seamless appearance suited to any property. Expertly sealed for high energy efficiency, our flush rooflights for flat roofs are available in fixed and opening designs tailored to your needs.
We install flat rooflights that complement the appearance of your property in Southeast England.Walk-On Rooflights
Do you have a roof terrace at your home or business in Southeast England? Order a bespoke walk-on rooflight made with toughened glass or polycarbonate for durability.
Our walk-on rooflights are designed to handle heavy foot traffic and are installed by our FENSA-registered, skilled and experienced rooflight installers in your area.
Walk-on rooflights add a stylish architectural feature to any home or commercial space.Velux Rooflight
The quality choice for the ultimate flat rooflight in Southeast England - Velux! Velux rooflights are available in fixed and opening options, provide excellent insulation, and allow up to three times more natural light than vertical windows.
We recommend Velux rooflights for flat roof upgrades, ensuring high energy efficiency, durability and year-round comfort.Flat Rooflights FAQs: Natural Light, Contemporary Design & Installation in South East England
A flat rooflight is a modern glazed panel fitted into a flat or low-pitched roof. Designed with slimline or frameless profiles, rooflights allow maximum natural daylight into your home while maintaining a sleek, contemporary appearance inside and out.
Flat rooflights create brighter, more inviting spaces by increasing natural light. They also enhance modern aesthetics, improve energy efficiency with advanced glazing, and can increase the value and appeal of your home or extension.
Yes — our flat rooflights are built with high-performance double or triple glazing, low-E coatings, and warm-edge spacers. They achieve excellent U-values, helping to reduce heat loss in winter while limiting overheating in summer.
In most cases, planning permission is not required for flat rooflights if they do not protrude excessively above the roofline. Exceptions include listed buildings or conservation areas. We’ll confirm requirements during your free survey.
Yes — our rooflights are manufactured with toughened or laminated safety glass and secure fixing systems. They are designed to resist impact and tampering, offering reliable protection alongside their modern appearance.
Absolutely. Our flat rooflights are available in a wide range of sizes, shapes, frame colours and glazing options. Frameless or ultra-slimline styles create a contemporary finish, and dual-colour frames can be matched to both interior and exterior designs.
Prices vary depending on size, glass specification, frame finish and installation. Frameless designs are often more premium. We provide free, no-obligation quotes and offer finance options (subject to status).
Most flat rooflight installations can be completed in 1–2 days, depending on roof access and structural preparation. We’ll confirm timelines during your quotation and ensure minimal disruption to your home.
Yes — rooflights are low-maintenance and only require occasional cleaning. Many options include self-cleaning glass, which uses a special coating to reduce dirt and watermarks, keeping your rooflight looking clear for longer.
Yes — flat rooflights are considered a premium home improvement feature. They increase kerb appeal, natural light and energy performance, making your property more attractive to potential buyers and boosting resale value.
All installations come with a 10-year insurance-backed guarantee, plus manufacturer warranties on frames, glass and components. We also register installations with FENSA where applicable to ensure compliance with Building Regulations.
We install flat rooflights across Hampshire, West Sussex, East Sussex, Surrey, Berkshire and parts of Kent & Greater London. Visit our Areas We Cover page or Request a Quote to check availability in your area.
Call 0800 368 9166, message us on WhatsApp 07932 960284, email sales@instantwindowsanddoors.co.uk or fill in the Request a Quote form. We’ll arrange a free survey and provide expert advice tailored to your home.
Call us to discuss
your project.
Contact Martin & his team for a free flat rooflight quotation.
At Instant Windows & Doors, we guarantee high-quality, cost-effective flat rooflight installations for homes and commercial buildings anywhere across Southeast England.
Book one of our local and certified flat rooflight services in your area and receive a rapid-response service with no call-out charge and a super-fast turnaround.
We always make time for our clients and promise to deliver an expert rooflight installation service according to your needs.
Receive expert guidance based on your requirements and make informed decisions to ensure you get the most out of our rooflight services across Southeast England.At Instant Windows, your
feedback is noted
and appreciated.
Our skilled, insured, licensed, and certified
installation professionals offer seamless
window and door installations for both
residential and commercial properties.
Contact us to discuss your project
Competitively priced windows and doors in Southeast England.
At Instant Windows & Doors, we assure you of a dependable and trustworthy window and door installation and repair service available throughout Southeast England. Schedule one of our local, certified installers in your vicinity, and enjoy a prompt response without any call-out fees and swift service turnaround.
We are dedicated to prioritising our clients and ensuring the provision of expert window and door installation and repair services tailored to your specific requirements.
Windows
Doors
Home Improvements
Roofing Solutions
ADDRESS
Instant Windows and Doors
Unit 4 Raleigh Court
Priestley Way
Crawley
West Sussex
RH10 9PD
© Copyright 2023 Instant Windows and Doors & Glazing Ltd All Right Reserved
Instant Windows and Doors & Glazing Ltd. Company Registration Number 14643598