Black and white kitchen with a mixer, sink and a window

A+ Triple Glazed Windows

Q: What are triple glazed windows, and are they worth the investment?

Yes. Triple glazed windows mean adding an additional glass pane to your standard double glazed window. By adding a third pane of glass, triple glazing provides an extra layer of insulation that is known to cut energy bills, blocks outside noise, and boosts home security. While beneficial for any property, it's particularly worth the investment if you live in a colder area or alongside a busy road.

Q: Do triple glazed windows reduce noise?

Yes, triple glazing helps reduce external noise thanks to its thicker glazing and additional pane of glass. The extra layer creates an added barrier against sound, making it a great choice for homes in busy or noisy areas.

Q: How long do triple glazed windows last?

Triple glazed windows typically last 20–30 years or more with proper care and maintenance.

Q: What areas does Coral Windows cover?

Coral Windows proudly serves customers across Yorkshire, including Bradford, Huddersfield, Wakefield, Leeds, and Sheffield, delivering professional installation and outstanding customer service throughout these areas.

Here at Coral, we take pride in crafting custom-made triple-glazed windows directly in our West Yorkshire factory. By adding an extra pane of glass, our windows significantly boost insulation and cut down outside noise compared to standard double glazing. Every unit is tailored to your exact needs and expertly fitted by our specialist installers.

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Summer Offer: Save up to 50% off + Free Upgrade to Triple Glazing*

1. The “Up to 50% Discount On Selected Items, including Free Upgrade to Triple Glazing on Selected Frames Offer” is available on qualifying orders placed between 01.08.2026 & 31.08.2026.
2. “Up to 50% Discount On Selected Items, including Free Upgrade to Triple Glazing on Selected Frames Offer” must be stated in writing on the contract at the point of sale. Coral cannot be held responsible for claims placed after this time.
3. The “Up to 50% Discount On Selected Items, including Free Upgrade to Triple Glazing on Selected Frames Offer” applies to any tilt & turn windows or French doors, manufactured by Coral only, with frame colour being either Cedar Grey foil on both sides, Pepper Oak on Both sides, Cedar Grey foil outside and smooth white (i.e. not grained) uPVC inside or Pepper Oak foil outside and smooth white (i.e. not grained) uPVC inside.
4. The “Up to 50% Discount On Selected Items, including Free Upgrade to Triple Glazing on Selected Frames Offer” cannot be applied to conservatory frames.
5. The “Up to 50% Discount On Selected Items, including Free Upgrade to Triple Glazing on Selected Frames Offer” does not apply to uPVC casement windows, uPVC flush casement windows, CL3 range of triple-glazed windows, uPVC residential doors, composite doors, inline patio doors, aluminium bi-folding doors, conservatory roofs or Vertical Sliding Sash windows.
6. The “Up to 50% Discount On Selected Items, including Free Upgrade to Triple Glazing on Selected Frames Offer” offer does not apply to any building works, internal sills, window boards or trims.
7. The maximum size for any triple glazed glass unit is 1.7m2 due to health & safety reasons. Where a required unit size is larger, a double-glazed unit will be supplied and installed.
8. There is no minimum order value to qualify for the “Up to 50% Discount On Selected Items, including Free Upgrade to Triple Glazing on Selected Frames Offer”.

Terms and Conditions

August 2026 50% Off Selected Items Offer Terms and Conditions:
1. The “30% Off Selected Items Offer” is available on qualifying orders placed between 01.07.26 & 31.07.26.
2. The “30% Off Selected Items Offer” is available on standard casement windows, flush sash windows, uPVC tilt & turn windows, uPVC residential
doors, Composite doors, and uPVC French doors.
3. “30% Off Selected Items Offer” must be stated in writing on the contract at the point of sale. Coral cannot be held responsible for claims placed after
this time.
4. The “30% Off Selected Items Offer” can be applied to conservatory frames providing they are not included in the listed exclusions below.
5. The “30% Off Selected Items Offer” does not apply to aluminium bi-folding doors, conservatory roofs or Vertical Sliding Sash windows.
6. The “30% Off Selected Items Offer” offer does not apply to any building works, internal sills, window boards or trims.
7. The “30% Off Selected Items Offer” cannot be used in conjunction with the “July 2026 Free Colour Upgrade offer”.
8. There is no minimum order value to qualify for the “30% Off Selected Items Offer”.
Free Conservatory Roof Glass Upgrade Terms and Conditions:
1. The “Free Conservatory Roof Glass Upgrade offer” is available on qualifying orders placed between 01.07.2026 & 31.07.2026.
2. “Free Conservatory Roof Glass Upgrade offer” must be stated in writing on the contract at point of sale. Coral cannot be held responsible for claims
placed after this time.
3. The “Free Conservatory Roof Glass Upgrade offer” can only be applied to orders containing Coral Premium Roofs.
4. The “Free Conservatory Roof Glass Upgrade offer” can be applied to the following: –
 Ambi-Blue Self-Cleaning (1.2 uValue) can be upgraded to Ambi-Sunshade Blue Self-Cleaning (1.0 or 1.2 uValue).
 Ambi-Blue Self-Cleaning (2.7 uValue) can be upgraded to Ambi-Sunshade Blue Self-Cleaning (2.7 uValue).
 Ambi-Neutral Self-Cleaning (1.2 uValue) can be upgraded to Ambi-Aqua Self-Cleaning (1.0 or 1.2 uValue).
 Ambi-Neutral Self-Cleaning (2.7 uValue) can be upgraded to Ambi-Aqua Self-Cleaning (2.7 uValue).
 Ambi-Blue Self-Cleaning or Ambi-Neutral Self-Cleaning (1.2 uValue) can be upgraded to Ambi-Ultra Self-Cleaning (1.0 or 1.2 uValue).

Lowest Price Guarantee terms and conditions:
Our price promise has held Coral in good stead with our customers for over 35 years. We will not be beaten on price (please refer to terms and conditions below
for further details when comparing to other quotes from other companies), they must have:
1. The specification of the product must be fully sculptured 70mm profile.
2. The styles and sizes must be detailed on a letter headed quotation.
3. Conservatory frames – windows and doors should be of the same quantity, styles and design specification.
4. Conservatory roofs – must be of same design specification. “Tiled” conservatory roofs must be Ultraroof.
5. Warranties for each of the products must either be the same of better.
6. Have an Insurance Backed Guarantee (where work is covered by FENSA).
7. Have a BSI kitemark for survey and installation.
8. Be FENSA regulated.
9. Manufacture their own products.

It is important to bear in mind that Coral Windows and Conservatories have been in business with continuous trading for over 35 years and we do not take a
deposit or stage payments and only ask for payment when the goods are installed. This gives you, our customers 100% peace of mind.
Our CL3 Triple Glazed Range and other triple glazed windows are subject to size restrictions and style limitations due to the weight of the glass – see your
representative for details. The maximum size for any triple glazed glass unit is 1.7m2

due to health & safety reasons. Where a required unit size is larger, an A-
rated double-glazed unit will be supplied and installed.

“Self-cleaning” glass is not a ‘100% maintenance-free’ product but does offer a reduced need for manual cleaning.

*New windows from Coral could save our customers hundreds of pounds on their heating bills*
You can check both your potential savings on heating costs and your CO2 savings by entering a few simple details into our energy calculator which can be found
on our website https://www.coralwindows.co.uk
As an example, a typical customer (living in a semi-detached house which has wooden single glazed windows and mains gas heating) could save approx. £911 on
their heating bill over the course of the first 12 months after they had new double-glazed windows installed by Coral Windows (information correct as at
13/10/2023). Potential savings will vary depending on the information entered into the energy calculator.

Thermal Efficiency

Triple glazing outperforms standard double glazing by adding an extra layer of insulation. It blocks out summer heat and keeps warmth inside throughout winter, ensuring year-round comfort.

Noise Reduction

If you live near a busy road, triple glazing is ideal for cutting unwanted noise. The extra pane absorbs sound vibrations, creating a quieter, more peaceful home.

Home Security

The added glass panel makes triple glazing noticeably more robust. Built with premium frames and PAS24-certified multi-point locking systems, our windows combine top-tier home security with total peace of mind.

15 Year Guarantee

At Coral Windows, all of our home improvements come with a 15-year guarantee, giving our customers complete peace of mind that they are investing in quality.

Bedroom with green painted wall, wooden door, and a white window

Bespoke A+ Triple-Glazed Windows Designed Around Your Home

Your home’s unique style comes first. While comfort and performance are always top priorities at Coral, we never compromise on look and feel. Our custom triple-glazed windows are made to measure in a wide range of colors, finishes, and wood-effect options—putting total design control in your hands.

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Flexible Finance Options

Replacing your windows is a big decision and a considerable investment, so we provide a variety of flexible financing options to help you manage the cost. Our team is here to walk you through the different choices and assist you in finding a payment plan that fits your budget, making it simpler for you to invest in top-notch, custom-made windows.

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Why Choose Coral Triple Glazed Windows?

Smart Features Available: Secure your home with discreet, app-controlled window sensors that seamlessly connect to your Coral SmartHub for instant alerts, status checks, and effortless device pairing.

West Yorkshire Built & Installed: Proudly manufactured in our local West Yorkshire factory and fitted with care by our specialist installers to ensure a perfect fit every time.

Reliable Aftercare Support: With our team on hand to provide assistance and advice even after your installation is complete. We ensure that your home is cared for even after installation.

Wide Range of Window Styles: such as casement, sliding sash, tilt & turn, and more, giving you the flexibility to choose the right look for your home.

Features & Benefits

Discover the key features and benefits that make our triple glazed windows a practical and stylish choice for any Yorkshire home.

Exceptional Durability

Triple glazed windows from Coral combine practical performance with a range of styles and finishes to complement different types of homes. Featuring three panes of glass, PAS24 approved hardware with insulating spaces between them, our triple glazed windows are built to last a lifetime and come with a 15 year backed guarantee.

Bespoke Solutions

Every home in Yorkshire has its own unique character, and at Coral Windows, we believe your windows should reflect your individual style. That’s why our triple glazed windows are fully customisable, allowing you to create the perfect combination of design, colour, glazing, and finish to complement your property. Whether you’re restoring the charm of a period home or enhancing a contemporary new build, we offer bespoke solutions tailored to your aesthetic and practical requirements.

Choose from a wide range of frame colours, hardware options, decorative glazing, and finishes to achieve a truly personalised look. Combining timeless style with outstanding energy efficiency, security, and durability, our expertly crafted triple glazed windows are designed to enhance your home’s appearance, comfort, and value for many years to come.

Home Security

Secure your home with confidence thanks to Coral’s advanced window security features. Our A+ triple glazed windows are fitted with Fortress+ multi-point locking systems, helping to protect against forced entry by securing the sash at multiple points around the frame.

Designed with robust construction and high-quality hardware, our windows are PAS 24 certified for enhanced security performance. Combining strength, durability and a modern appearance, they provide reliable protection for your home.

15 Year Guarantee

Enjoy complete peace of mind with Coral Windows’ triple glazed windows, backed by our comprehensive 15-year guarantee as standard. Manufactured to the highest standards using premium materials and installed by our experienced professionals, every window is built to deliver exceptional performance, security, and energy efficiency for years to come.

We have complete confidence in the quality of our products and workmanship, which is why we never ask for a deposit upfront. Instead, you only pay once your installation has been completed and you’re entirely satisfied with the finished result. Our transparent, customer-first approach ensures a simple, stress-free, and completely risk-free experience from your initial consultation through to installation, giving you total confidence that you’ve made a lasting investment in your home.

See what our customers say about us

With thousands of installations completed, our reputation is built on happy customers. Explore their stories and discover why Coral is trusted for quality, service, and lasting value.

Transforming the Kellett Home with Modern Style and Light

ITV Weatherman John Mitchell Upgrades His Home with Coral Windows

Olympic Champion Nicola Adams Chooses Coral Windows

Mrs Watts modernised her whole home with new windows, doors, and roofline

Mr & Mrs Evans – Transforming Their Living Space with Bifold Doors

From Dilapidated to Dream Home: A Coral Windows Transformation

Surprise! Bradford Couple Wins Dream Home Upgrade in Coral Windows Prize Draw

We’re delighted to introduce Mr & Mrs Armitage, our May 2025 Competition Winners!

English cottage with beautiful double glazing

Frequently Asked Questions

What styles of triple glazed windows are available?

Triple glazed windows are available in a range of styles, colours and finishes to complement different property designs this includes wood grain finishes, a wide range of colours and window styles including: