Glass and Glazing2025-06-06T14:42:51+00:00

Insulated Glazed Units

Made to Measure and Replacement Double and Triple Glazed Sealed Units

Specialists in all types of sealed glazed units for uPVC, Timber and Aluminium framed Windows, Doors and Conservatories

Double glazed units are made from two pieces of top quality glass, cut to the required size and sealed around an internal frame called the spacer bar.

We know that your windows come in all shapes and sizes, that’s why our glass does too.  With a choice of innovative glass types from standard float to solar control, thermal and acoustic units we are always on hand to help you decide on the best option for your property and budget. Care is always taken to match the original glass when replacing any existing units that may appear foggy, misted, blown or broken. 

Our complete service offering includes:

  • Advice and assistance from our knowledgeable team over the phone or a site visit to your premises if required 
  • Help with how to measure the height, width and depth of your units correctly
  • Help you make an informed choice for either air or gas filled units
  • How to identify your current glass type 
  • Removal and disposal of the old units (this may incur a service charge)
  • Installation of new glazing panels
  • Supply only on all our products is also an option

All our branches are approved Planitherm Network Members.

We are a FENSA registered company. You can find your nearest window installer HERE.

Replacement Double Glazed Units

Often the frames the surround your glass are still serviceable but the glass unit itself may have clouded or misted over time. An affordable solution to this may be a replacement glass unit. 

By replacing faulty units and repairing locks and hinges your home can be kept secure and weather proof. 

Which Glass?

Energy Efficiency  Enhanced Security  Noise Reduction  Furniture Fade Protection  Reduce Overheating

We can advise, supply and install the latest in glass innovation options:

Basic Double Glazed Unit (DGU)

Laminated

Solar Control

Thermal Insulated

Acoustic

Easy Clean

Tinted

Traditional and Contemporary Decorative Glass

Heritage Double Glazed Units

Slimline sealed units that provide a sympathetic upgrade/solution for some traditional single glazing in listed and conservation area properties. These units are designed to fit traditional timber frame windows.

For more information on our Westcountry Heritage units range please click HERE

Window and Door Repairs

Supply and installation of replacement glass, hinges, handles and locks to keep your windows and doors in tip top condition.

Hinges and locks   

Secondary Glazing

Bespoke, discreer, slimline and secure glazing designed for all building types including: listed, conservation area and heritage properties.

We offer a wide range of solutions produced especially for Secondary Glazing.

Effective Sound Insulation  Significantly Reduced Heat Loss  Retain the Property Character ● Full Installation Service  Various Style Options 

There is even an effective, affordable easy fix DIY option

You can find out more about our Secondary Glazing solutions HERE

secondary-glazing-commercial 1

Cat and Dog Flaps In Glass Units

We supply and fit Cat and Dog flaps into double glazed units in doors and windows and single glazed doors and windows.

Dog and Cat Flaps can be fitted to the following:

  • Glass Doors
  • Conservatories
  • Windows
  • Double/Single Glazed Units
  • Sliding Patio Doors
  • French Doors
  • Double Glazing
  • Single Glazing
  • Single, Flat Panel uPVC Doors

More information and Q & A’s for all your Pet Door requirements can be found HERE

Cat Flaps in Glass

Decorative Glass Units

Bespoke commissions for styles ranging from traditional to contemporary. Each design produced or repaired can, if required, be fitted into a double glazed unit giving you desired aesthetics within a secured unit.

We pride ourselves on the work that we undertake, be it a simple repair or a complex and intricate leaded light.

More information on Stained Glass and Colour Film designs can be found HERE

traditional stained glass

Please do not hesitate to get  in touch if you have any question about our double glazed units. All our branch details are listed below.

FAQ’s

Important Notice:

The information provided in our FAQ section is intended as a general guide only. For detailed and specific enquiries, we strongly recommend contacting your local Cornwall Glass branch. Our team will be happy to assist you with accurate and personalised information.

Do you offer energy-efficient glazing options?2025-04-23T09:46:39+00:00

Yes, we provide energy-efficient glazing options to help reduce energy bills and improve insulation.

Do you offer decorative glass options?2025-04-23T09:46:39+00:00

Yes, we have a range of decorative glass options available, including stained glass and patterned glass.

Do you offer glazing with sandblasting services?2025-04-23T09:46:39+00:00

Yes, we provide sandblasting for decorative and privacy purposes.

Do you offer heat-strengthened glass?2025-04-23T09:46:40+00:00

Yes, we provide heat-strengthened glass for various applications.

Do you offer acoustic glass?2025-04-23T09:46:40+00:00

Yes, we provide acoustic glass for sound insulation.

Do you offer fire-resistant glass?2025-04-23T09:46:41+00:00

Yes, we provide fire-resistant glass for safety applications.

Do you offer glazing for heritage properties?2025-04-23T09:46:41+00:00

Yes, we provide glazing solutions for heritage and listed buildings.

Do you offer glazing for marine applications?2025-04-23T09:46:41+00:00

Yes, we provide glass for boats and marine environments.

Do you offer glazing for automotive applications?2025-04-23T09:46:42+00:00

Yes, we provide glass for various automotive needs.

Do you offer glazing for sports facilities?2025-04-23T09:37:45+00:00

Yes, we offer glass solutions for sports and recreational facilities.

Do you offer glazing for greenhouses?2025-04-23T09:37:45+00:00

Yes, we offer glazing specifically designed for greenhouses.

Do you offer glazing for skylights?2025-04-23T09:37:45+00:00

Yes, we provide glazing solutions for skylights and roof windows.

Do you offer glazing for shower screens?2025-04-23T09:37:46+00:00

Yes, we design and install custom glass shower screens.

Do you offer glazing for dog and cat flaps?2025-04-23T09:32:23+00:00

Yes, we can incorporate pet flaps into glass doors and windows.

Do you offer glazing for stained glass windows?2025-04-23T09:32:23+00:00

Yes, we offer custom stained glass designs.

Do you offer glazing for secondary glazing?2025-04-23T09:32:24+00:00

Yes, we offer secondary glazing solutions for improved insulation.

Do you offer glazing for shop fronts?2025-04-23T09:32:24+00:00

Yes, we design and install glass for commercial shop fronts.

Do you offer glazing for walk-on applications?2025-04-23T09:32:24+00:00

Yes, we offer walk-on glass solutions for floors and roofs.

Do you offer glazing for solar panels?2025-04-23T09:32:24+00:00

Yes, we provide glass for solar panel applications.

Do you offer glazing for aquariums?2025-04-23T09:32:24+00:00

Yes, we offer custom glass solutions for aquariums.

Do you offer glazing for sports facilities?2025-04-23T09:32:25+00:00

Yes, we offer glass solutions for sports and recreational facilities.

Do you offer glazing for art installations?2025-04-23T09:32:25+00:00

Yes, we offer custom glass solutions for artistic projects.

Do you offer glazing for residential properties?2025-04-23T09:32:25+00:00

Yes, we offer glass solutions for residential properties.

Do you offer installation services for glazing?2025-04-23T08:40:51+00:00

Yes, we provide both supply-only and supply-and-installation services.

What is the lead time for custom glazing orders?2025-04-23T08:40:52+00:00

Lead times vary depending on the project; please contact us for specific details.

Can you provide glazing for conservatories?2025-04-23T08:40:52+00:00

Yes, we offer glazing solutions for conservatories, including double and triple glazed units.

Do you offer glazing for doors?2025-04-23T08:40:52+00:00

Yes, we provide glazing for various types of doors, including uPVC, timber, and aluminium.

Can you replace broken or damaged glass?2025-04-23T08:40:52+00:00

Yes, we offer glass replacement services for broken or damaged windows and doors.

What is the process for ordering glazing services?2025-04-23T08:40:53+00:00

Contact us with your requirements, and we will guide you through the process from measurement to installation.

Do you offer energy-efficient glazing options?2025-04-23T08:40:53+00:00

Yes, we provide energy-efficient glazing options to help reduce energy bills and improve insulation.

Can you provide glazing for commercial properties?2025-04-23T08:40:53+00:00

Yes, we offer glazing solutions for both residential and commercial properties.

Do you offer decorative glass options?2025-04-23T08:40:53+00:00

Yes, we have a range of decorative glass options available, including stained glass and patterned glass.

Is your glazing environmentally friendly?2025-04-23T08:34:39+00:00

We strive to use sustainable practices and materials in our glazing products.

Do you offer glazing for heritage properties?2025-04-23T08:34:39+00:00

Yes, we provide glazing solutions for heritage and listed buildings.

Can you provide glazing for greenhouses?2025-04-23T08:34:39+00:00

Yes, we offer glazing specifically designed for greenhouses.

Do you offer glazing for skylights?2025-04-23T08:34:39+00:00

Yes, we provide glazing solutions for skylights and roof windows.

Can you provide glazing for shower screens?2025-04-23T08:34:40+00:00

Yes, we design and install custom glass shower screens.

What is the best way to clean glazed windows?2025-04-23T08:34:40+00:00

We recommend using a non-abrasive glass cleaner and a soft cloth to keep your windows clean and clear. We sell our own branded non-abrasive cleaner.

Do you offer glazing for dog and cat flaps?2025-04-23T08:34:40+00:00

Yes, we can incorporate pet flaps into glass doors and windows.

Can you provide glazing for stained glass windows?2025-04-23T08:34:40+00:00

Yes, we offer custom stained glass designs.

Do you offer glazing for secondary glazing?2025-04-23T08:34:40+00:00

Yes, we offer secondary glazing solutions for improved insulation.

What is the warranty on your glazing products?2025-04-23T08:34:41+00:00

Warranty details vary by product; please contact us for specific information.

Do you offer glazing with sandblasting services?2025-04-23T08:34:41+00:00

Yes, we provide sandblasting for decorative and privacy purposes.

Can you create bevelled glass designs?2025-04-23T08:26:32+00:00

Yes, we offer custom bevelled glass options.

Do you provide glazing for shop fronts?2025-04-23T08:26:32+00:00

Yes, we design and install glass for commercial shop fronts.

Can you create glass shelves?2025-04-23T08:26:33+00:00

Yes, we offer custom glass shelving solutions.

Do you offer heat-strengthened glass?2025-04-23T08:26:33+00:00

Yes, we provide heat-strengthened glass for various applications.

Can you create glass doors?2025-04-23T08:26:33+00:00

Yes, we design and install custom glass doors.

Do you offer acoustic glass?2025-04-23T08:26:34+00:00

Yes, we provide acoustic glass for sound insulation.

Can you create glass partitions?2025-04-23T08:26:34+00:00

Yes, we offer custom glass partitions for offices and homes.

Do you provide glazing for walk-on applications?2025-04-23T08:26:34+00:00

Yes, we offer walk-on glass solutions for floors and roofs.

Can you create tinted glass?2025-04-23T08:26:35+00:00

Yes, we provide custom tinted glass options.

Do you offer fire-resistant glass?2025-04-23T08:26:35+00:00

Yes, we provide fire-resistant glass for safety applications.

Can you create glass countertops?2025-04-23T08:20:16+00:00

Yes, we offer bespoke glass countertops for kitchens and bathrooms.

Do you provide glazing for skylights?2025-04-23T08:20:16+00:00

Yes, we design and install glass for skylights.

Can you create glass for art installations?2025-04-23T08:20:16+00:00

Yes, we offer custom glass solutions for artistic projects.

Do you offer glazing for marine applications?2025-04-23T08:20:17+00:00

Yes, we provide glass for boats and marine environments.

Can you create frosted glass designs?2025-04-23T08:20:17+00:00

Yes, we offer custom frosted glass options.

Do you provide glazing for heritage buildings?2025-04-23T08:20:17+00:00

Yes, we offer glass solutions for heritage and listed buildings.

Can you create glass for solar panels?2025-04-23T08:20:18+00:00

Yes, we provide glass for solar panel applications.

Do you offer glazing for automotive applications?2025-04-23T08:20:18+00:00

Yes, we provide glass for various automotive needs.

Can you create glass for aquariums?2025-04-23T08:20:18+00:00

Yes, we offer custom glass solutions for aquariums.

Do you provide glazing for sports facilities?2025-04-23T08:20:19+00:00

Yes, we offer glass solutions for sports and recreational facilities.

What types of glazing services do you offer?2025-04-23T08:12:50+00:00

We offer a wide range of glazing services, including double glazing, triple glazing, secondary glazing, single pane glazing, and bespoke glass solutions.

What is double glazing?2025-04-23T08:12:50+00:00

Double glazing consists of two panes of glass with a spacer bar in between, providing better insulation and noise reduction.

What is triple glazing?2025-04-23T08:12:51+00:00

Triple glazing includes three panes of glass, offering even greater insulation and energy efficiency compared to double glazing.

What is the cavity (or spacer bar) in a double or triple glazed unit?2025-06-25T15:18:57+00:00

The cavity refers to the space between the two panes of glass in a double-glazed window. This space is typically filled with air or an inert gas (like argon or krypton) to improve insulation and reduce heat transfer.

  • Typical cavity width: 6mm to 20mm (most standard Double and Triple Glazed Units have either 20mm or 16mm)
  • Purpose: Enhances thermal and acoustic insulation
What is the overall thickness of a double-glazed unit or triple glazed unit?2025-06-25T15:17:55+00:00

The overall thickness is the total depth of the entire unit, including:

  1. The first pane of glass
  2. The cavity
  3. The second pane of glass

For example, a unit described as 4/16/4 means:

  • 4mm glass + 16mm cavity + 4mm glass = 24mm overall thickness

For example, a unit described as 4/16/4/16/4 means:

  • 4mm glass + 16mm cavity + 4mm glass + 16mm cavity + 4mm glass = 44mm overall thickness

 

What are the benefits of double glazing?2025-04-23T08:12:51+00:00

Double glazing improves energy efficiency, reduces noise, and enhances security.

What are the benefits of triple glazing?2025-04-23T08:12:51+00:00

Triple glazing provides superior insulation, noise reduction, and energy savings.

Can you replace misted or blown double glazed units?2025-04-23T08:12:51+00:00

Yes, we can replace misted or blown double glazed units to restore clarity and insulation.

What types of glass do you offer for glazing?2025-04-23T08:12:52+00:00

We offer a variety of glass types, including laminated glass, toughened glass, solar control glass, thermal insulated glass, acoustic glass, and decorative glass.

Can you provide custom-made glass solutions?2025-04-23T08:12:52+00:00

Yes, we offer bespoke glass solutions tailored to your specific needs.

01872 276697
Truro@cornwallglass.co.uk
Chyvelah Road, Threemilestone, Truro, TR3 6AZ

01326 375124
Penryn@cornwallglass.co.uk
Commercial Road, Penryn, TR10 8AQ

01736 360174
Penzance@cornwallglass.co.uk
Poniou Way, Longrock Industrial Estate, Penzance, TR20 8HX

01392 364364
Exeter@cornwallglass.co.uk
7-10 Bittern Units, Bittern Road, Sowton Industrial Estate, Exeter, EX2 7LW

01935 412300
Yeovil@cornwallglass.co.uk
22 Garrett Road, Lynx Trading Estate, Yeovil, BA20 2TJ

0117 9710101
Bristol@cornwallglass.co.uk
Units 1-3, 306 Broomhill Road, Brislington, Bristol, BS4 5RG