Saris-Extensions Frameless Flat Roof Window - 1200 x 1800mm - Triple Glazed, Clear Tint, Toughened Safety Glass
TRIPLE GLAZED SKYLIGHT 1200 x 1800 mm Original price was: £939.45.Current price is: £757.94. incl. VAT
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Oversized Skylight 300 – 5800mm

(6 customer reviews)
  • This is the internal visible glass size. (Quoted Size)

    Use the image below for reference.

    Estimated Delivery is between 3 to 6 weeks

    *Width (300mm - 2200mm)

    *Length (1500mm - 5800mm)


    *Choose Border ( Overhang )

    *Glass Colour

    Please atach a file with a similar drawing so we can better understand your requirements, and sizes to avoid any mistakes

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SPECIFICATIONS

Custom size Triple Glazed Skylight / Rooflight

This high-performance, non-opening frameless skylight is triple glazed with 6mm toughened, self-cleaning glass and a U Value of only 0.9 W/m²K.

Glazing Type: Triple Glazed

Top Glass Pane: 8mm BS EN 12150 Thermally Toughened Glass

Spacer Type: 15mm Black Warm Edge

Air Gap: 15mm 90% Argon Filled

Middle Glass Pane: 6mm iplus Thermally Toughened Glass

Spacer Type: 15mm Black Warm Edge

Air Gap: 15mm 90% Argon Filled

Bottom Glass Pane: 44.2 Low E; BS EN 14449 Laminated Glass

U Value: 0.9 W/m²K

G Value: 58%

Self Cleaning: YES

UV Protected: YES

Clear Tint

When it comes to choosing a roof light for your home, we know that safety is an important deciding factor.

This product conforms to British Standards & Building Regulations and has all Safety Markings.

It is CE marked which is a certification mark that indicates conformity with the relevant EU directives and standards for products sold within Europe.

Our Skylights can be installed at a maximum pitch of 45 degrees.

Best Price
20 Years Warranty
Guarantee Payment Safety
Self Cleaning
Clear Tint
UV Protected
Free Delivery within London (M25)
Аll Glass Panels
Safety Toughened and Laminated Glass
Made In EU
London Based Stock
Quick and easy installation
Step By Step installation guide
24/7 technical helpline
Additional information
Color

Clear

Manufacturer

Saris-UK Ltd

Size

Custom Size

Reviews (6)
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6 reviews for Oversized Skylight 300 – 5800mm

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  1. Poppy Lewis

    We live in central London, and we expected the delivery and installation to be a hassle, but Saris Extension made it effortless. The oversized skylight arrived quickly, and the installation was smooth. Their professional team made sure everything was perfect.

  2. Daena Jaxon

    Saris Extension’s installation process was smooth and trouble-free. They had a oversized skylight that perfectly fit our distinctive roof space, and the result is a sleek, integrated look that we couldn’t be happier with.

  3. Ella Butler

    Our Sheffield home needed an upgrade, and Saris Extension was just the company to help us with that. They helped us choose the perfect oversized skylight and handled the installation effortlessly. Now our home looks modern, feels warmer, and our energy bills have reduced!

  4. Thomas Green

    We moved from London to a new house in Glasgow and knew we wanted a custom size skylight. Saris Extension was our choice back in London, and they didn’t disappoint us this time either. The nationwide delivery was prompt, and the installation was seamless. Our new home is now as bright and inviting as our old one. Thank you, Saris Extension!

  5. Haydn Conyard

    I had a great experience. From the start, their customer service was top-notch and they answered all my questions quickly. On top of that, I was really impressed with the fast delivery times, even for custom sizes. The team were knowledgeable and that was what secured the sale for me – they really knew their stuff! My product arrived in perfect condition and very quickly – definitely recommend them!

  6. Jack Evans

    Adding these custom size rooflights has completely transformed our properties. They add an unexpected level of sophistication that potential buyers love. We’ve seen a marked increase in interest and sales price because of it.

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SHIPPING

Free Delivery:

  • Available on all orders over £400 within the London (M25) area.

Delivery Times:

  • Standard Flat & Pitched Skylights: 3–6 working days.
  • Custom Sizes: 3–6 weeks for production and shipping (free delivery).
  • Roof Lanterns, Framed Skylights, Electric Opening Skylights, Walk-On Skylights, Skylight Blinds: 10–14 working days.

Delivery Arrangements:

  • Delivery is scheduled Monday to Friday, 8 am to 5 pm.
  • We’ll contact you to arrange a delivery time once payment is complete.

Shipping Options:

  • Enter your shipping address at checkout to view options.
  • Within M25: Our drivers ensure safe delivery. We ask that you or your builders are present to accept the order.
  • Outside M25: We use external couriers. They will contact you to schedule delivery.
  • Extra Economy Shipping: Available for all areas except Northern Ireland and Scotland. In rare cases, you may need to pick up your order from a nearby depot.

Important Notes:

  • Products range from 10kg to 280kg. You may need 2–6 people to assist with unloading.
  • We are not liable for any damage during unloading, as it’s the customer’s responsibility.
  • If no one is available to receive the delivery, we will try to contact you. If unreachable, the order will be returned to our warehouse.