ROOF WINDOW EXPERT
info@kendlebuilding.co.uk
07834 705390
VELUX Flat Roof Windows
Whether you're updating a kitchen extension or transforming a flat roof loft, our flat roof windows bring natural light, airflow, and style into your home — all while boosting energy efficiency and comfort.
At Kendle Building, we supply and install the full range of VELUX flat roof windows — designed for performance, daylight, and year-round comfort.
We install across the East of England and surrounding areas with precision and care.
Flat Roof Solutions for Every Room
Flat roof windows aren’t just for modern extensions — they’re a smart upgrade for almost any room in the house. With the right setup, you can bring natural light, fresh air, and high thermal performance into the spaces that need it most.
You can use VELUX flat roof windows to...
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Brighten up a kitchen extension with wide, uninterrupted daylight
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Add natural ventilation to a bathroom without compromising on privacy
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Transform a windowless hallway or stairwell into a light-filled space
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Cut condensation and improve airflow in a utility or laundry room
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Create a calm, comfortable feel in home offices, studios, or even converted garages
Whether you’re planning a home improvement project, building from scratch, or simply looking to reduce energy bills, flat roof windows offer practical daylighting solutions for homes of all shapes and sizes.
As your local VELUX Certified Installer, Kendle Building helps you choose the right window for your roof pitch, room type, and lifestyle — with professional installation across Lincolnshire, Cambridgeshire, Northamptonshire, and beyond.
Our Velux Flat Window Range
We supply and install the full VELUX flat roof collection, including flat glass rooflights, curved glass options, and traditional domes — with models to suit both heated and unheated rooms.
Ideal for heated living spaces, this stylish flat option blends into any flat roof thanks to its minimalist design and frameless edge-to-edge glass. Comes with 2- or 3-layer glass and boasts top-tier performance in thermal insulation, noise reduction, and heat protection. Choose from electric or manual.
Designed for inhabited, heated rooms, this premium rooflight features 5 mm curved toughened glass for a sleek, modern finish. With a daylight area of 88%, curved glass offers excellent heat and sound insulation, plus optional 2- or 3-layer glazing and an integrated motor with rain sensor.
This clear or opaque acrylic dome sits over insulating glazing, making it perfect for heated rooms where you want a traditional rooflight shape with added energy performance. Good heat and sound insulation, with a daylight area of 70% and 2-layer glass as standard. Choose from electric or manual.
Best for unheated rooms and buildings, this opaque acrylic dome delivers basic light and weather protection at an affordable price. No glazing unit, but available with 2- or 3-layer dome options, and suitable for roof pitches from 0° to 15°. A simple, durable, and budget-friendly daylight solution.
Flat Roof Lights Designed for High Performance
VELUX flat roof windows are engineered for long-lasting performance, energy savings, and everyday comfort.
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Self-cleaning glass with optional solar control glazing
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High-impact safety glass tested to EN 1627, EN 1873, and PAS 24:2020
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Aerodynamic profiles for effective water runoff and wind resistance
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PVC frames with airtight insulation and low-maintenance finishes
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VELUX electric systems with Z-Wave compatibility for smart-home integration
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Remote control, rain sensors, and electric blinds available across models
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Exceptional thermal performance, with U-values as low as 0.64 W/m²K
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Available in double or triple glazing, with sleek glass-to-edge styling and modern internal finishes
Trusted
Local
Experts
As certified installers of flat roof rooflights, we combine premium products with reliable service.
You get...
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Expert installation with all fixings and trims included
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Detailed fitting using official installation kits and guides
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Full compliance with British Standards and building regs
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Clear advice on glazing, ventilation, insulation, and maintenance
We’ve completed hundreds of projects across the east of England, with happy customers everywhere we go.
Whether you're building from scratch or updating a tired flat roof, our crew will walk you through every option so you brighten your home in the way you'd like to.
Our VELUX Flat Roof Window Installation Process
1
Enquiry & Consultation
Fill out our quick form or give us a call. We’ll arrange a site visit to inspect your roof, discuss your options, and make recommendations based on your layout, roof type, and insulation needs.
Includes...
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Roof access check
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Building regulations review
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VELUX daylight calculator guidance
2
Choose & Prep
Together, we’ll choose the perfect VELUX loft window system to suit your loft conversion or extension. We’ll then order all the required materials and schedule the installation.
Includes guidance on...
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Manual, solar, or electric
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Glazing, ventilation bar, blinds
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Safe access, disposal, and delivery
3
Certified Installation
Your window is installed by a trained, VELUX Certified Installer. We use approved methods from the VELUX Installation Service and follow all relevant building codes.
Includes...
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Installation of glazing, flashing, trims
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Air- and moisture-sealing
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Full compliance with local regs
4
Finishing & Aftercare
We tidy everything and check insulation performance. You’ll get advice on maintenance, blinds, and replacements. You also receive your Certass certificate, warranty, and aftercare details.
Includes:
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IBG coverage
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Manufacturer’s warranty
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Customer support
