Custom Size Roof Window, Frameless Bespoke Skylight Calculator – Normal Size
Original price was: £ 100.00.£ 95.00Current price is: £ 95.00. incl. VAT
📏 Bespoke Skylight Cost – Instant Quote for Custom Sizes
Planning a skylight installation and want to know the cost right away? Our Custom Size Frameless Roof light Calculator gives you a fast, accurate price based on your specific measurements.
Whether you're adding natural light to a new extension, upgrading an old roof window, or looking for a sleek, fixed skylight for flat and pitched roof, this tool delivers a tailored quote instantly. It’s ideal for unique sizes and non-standard designs where off-the-shelf options won’t fit.
Ideal for homeowners, builders, and designers, this calculator ensures you get transparent roof window prices—all tailored to your project.
Frameless Skylights Glass Performance
Experience the perfect blend of natural light, energy efficiency, noise reduction, and UV protection with our precision-engineered glass.
Easy to replicate
Installation Guide
Dive into our user-friendly Installation Guide for a smooth skylight setup. Get the clarity you need, step-by-step.
Click below to explore the full guide.
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Easy Returns
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10 Year Warranty
Enjoy peace of mind with our extensive warranty.
Lucas Bennett –
Our Hull home has an unusual roof, but Regal Glass’ made-to-measure skylight was the perfect solution. The craftsmanship and fit are impeccable. Highly recommend their custom service!
Amelia Patterson –
I was worried we wouldn’t find a skylight to fit our odd-shaped loft in Plymouth, but Regal Glass’ bespoke skylights were a innovation. The custom fit is spot-on.
Amelia Patterson –
I was worried we wouldn’t find a skylight to fit our odd-shaped loft in Plymouth, but Regal Glass’ bespoke skylights were a innovation game-changer. The custom fit is spot-on.
Isla Thompson –
We wanted a specific design for our skylight in Southampton, and Regal Glass’ bespoke service didn’t disappoint. Our made-to-measure skylight is a work of art.
Oliver Campbell –
Our architect-designed home required a custom-sized skylight, and Regal Glass delivered superbly. The precision and quality of our bespoke skylight have truly enhanced our space.
Mia Davies –
Finding a skylight for our unconventional space in Derby was a challenge until we discovered Regal Glass’ made-to-measure service. Our bespoke skylight is the perfect addition to our home.
Damian Geller –
I was amazed at how seamlessly Regal Glass Group was able to integrate a custom rooflight into our Oxford home’s historic architecture. It’s a perfect blend of modern functionality and classic design.
Layla Barnes –
Getting a bespoke skylight for our old kitchen was the best decision. The process was straightforward, and the result is a stunning feature that floods our space with daylight.
Layla Barnes –
Getting a bespoke skylight for our old kitchen was the best decision. The process was straightforward, and the result is a stunning feature that floods our space with daylight.
Alfred Grant –
The custom-sized skylight in our bathroom has elevated the space to a whole new level. The quality and finish are exceptional, and the waterproofing is flawless.
William Thornton –
Bought a custom roof window for our home office. It fits perfectly on our flat roof and the light it brings in is amazing. Delivery was free and on time. Great product and service overall.
Charlotte Baker –
Installed a custom roof window in our home office. The UV protection and triple glazing are perfect for keeping the temperature stable. The frameless design looks great.
James Whitaker –
Purchased a custom roof window for our loft conversion. The quality is excellent and it fits perfectly on our pitched roof. Highly recommend Regal Glass Group!
Lucy Bennett –
Ordered a normal size custom roof window for our living room. The installation was straightforward and it looks fantastic on our pitched roof. The free delivery to Manchester was prompt. Very happy with the product.
Rachel Brooks –
Bought a normal size custom roof window for our kitchen. The triple glazing and U-value have made a huge difference in maintaining the temperature. The frameless design is beautiful and the natural light is perfect.
Sophie Hughes –
Our new frameless skylight with self-cleaning features is fantastic! The chemicals activated by the sun keep it spotless. It fits perfectly on our flat roof and the sound reduction is a bonus.
Emily Evans –
Ordered a custom roof window for our bathroom. The 0.9 W/m²K U-value is impressive and the Argon gas spacers keep the temperature stable. The free delivery to Manchester was prompt and the quality is excellent. Highly recommend Regal Glass Group!
Matthew Shaw –
We installed a normal size custom roof window in our hallway. The product quality is superb and it looks great on our pitched roof. Delivery was free to Edinburgh and prompt. Very satisfied with the purchase.
Laura Simpson –
Our frameless skylight has transformed our living room. The self-cleaning feature is a game-changer and the sound reduction is excellent. Free delivery to Bristol was fast and the quality is top-notch. Will definitely order again from Regal Glass Group.
John Meister –
As an architect, I always recommend Regal Glass Group. The latest order was a frameless skylight with a 0.9 W/m²K U-value for a project in Leeds. The quality and thermal efficiency are unmatched. Free delivery is a huge plus. Clients are very happy!
Matt Liams –
We installed a custom roof window in our hallway. The frameless design and minimalistic look are beautiful. Delivery was free to Edinburgh and prompt. Very satisfied with the purchase.
Emma Johnson –
Our new walk-on roof window for the terrace is perfect! The quality is excellent, and the installation was easy. Free delivery to London was prompt. Highly recommend Regal Glass Group for their superior products and services.
Olivia White –
The frameless skylight we ordered has transformed our bedroom. The self-cleaning feature keeps it looking clear and the sound reduction is fantastic.
Evelyn Smith, London –
Opted for a custom-sized skylight for our pitched roof in London and it fits perfectly. Regal Glass was able to accommodate our specific needs with professionalism and ease. The result is stunning!
Seamus O’Donnell –
Opted for a custom-sized skylight for my home office and the difference is night and day. The installation was a breeze, and the team was very professional. Highly recommend if you’re looking for reliable quality.
Amelia Rhodes –
Installed a custom roof window in our bedroom. The quality is top-notch and it looks great on our pitched roof. Highly recommend Regal Glass Group for their excellent products.
Charlotte Daniels –
Ordered a normal size custom roof window for our bathroom. It fits perfectly on our flat roof and brings in so much light. Delivery was free and prompt. Great service and product quality from Regal Glass Group!
John Smith –
The flat roof windows have transformed our house. The quality is exceptional and the delivery was quick. Excellent customer service!
Emily Johnson –
The flat roof skylights are of incredible quality. The delivery was swift and the customer service is very responsive. Very satisfied!
Michael Brown –
The flat roof windows have greatly improved our indoor spaces. The variety of sizes is impressive and the quality is excellent.
Oliver Jackson –
Our custom size roof window is fantastic! The natural light it brings into our living room is incredible. The delivery was fast, and the support team was very helpful.
Jessica Brooks –
Our made to measure roof light has transformed our bedroom. It brings in a lot of natural light, making the room feel more spacious. Delivery was fast too!
Ryan Collins –
Really pleased with the custom size roof window. It fits perfectly and lets in loads of light. Great customer service and fast delivery.