Replacement Greenhouse Glass

Replacement Greenhouse Glass by Sheerwater Glass

Supplied and installed by glass experts

At Sheerwater Glass, we understand how important a fully functioning greenhouse is for keen gardeners. Available in a myriad of sizes and designs, they provide the ideal environment to promote the maximum growth and health of all varieties of plant life and vegetables.

We aim to equip our customers with the knowledge you need and provide the highest service and care regarding replacement greenhouse glass material used in these structures, helping you to get the best use and enjoyment from your greenhouse.


  • Durable and strong to withstand the elements
  • Expertly installed by glass professionals
  • Unrivalled quality
greenhouse

Fensa Registered Company

FENSA is an acronym for the ‘Fenestration Self-Assessment Scheme’. Set up by the Glass and Glazing Federation, it allows double glazing companies to self-certify compliance with Building Regulations. There are several reasons why you should check for the FENSA logo when looking to have new windows and doors fitted in your home.

BSI Kitemark - Window Installation

Sheerwater Glass is one of only a handful of companies that has achieved the industry’s highest standard, BS 8213 for the survey and installation of windows and external door sets.

QA National Warranties

The insurance intermediary company QANW is responsible for protecting consumers through insurance policies. QANW has been in the business for over 25 years and has formed close associations with various building contractors and trade associations throughout the UK.

City & Guilds - Level 3 Qualified

The educational organisation City & Guilds are known for their vast levels of assessment, offering employees and workforces with the skills they require for many years. This seal of approval provided through their accreditation gives customers the confidence they require. Two of our employees, one in management and the other in our service department are qualified to City & Guilds level 3. This level of accreditation is highly sought after, with City & Guilds working with some of the leading brands of various sectors to offer the highest standard of training. The accreditation offered by City & Guilds is valued significantly, showcasing a business’s expertise, dedication and knowledge. In achieving this level of qualification, customers can feel assured that they are receiving the highest standard of work and customer service. City & Guilds and the City & Guilds logo are trademarks of the City and Guilds of London Institute and used under licence.

Checkatrade - Proud Members

Finding a tradesman is not always an easy task, especially when you’re unsure whether he or she is trustworthy. After all, you’ll be inviting this person into your private home, so you need make sure that they are reliable.

GQA Qualified

GQA Qualifications is an Awarding Organisation for specialist sectors and occupational roles. Qualifications cover the Glass, Construction, Coating and Print industries.

PASMA Tower Trained

Our team are fully trained in the assembling, dismantling, moving and inspecting mobile access towers and working at height.

BFRC Rated

Our products are BFRC rated, an independent verification of the energy efficiency of our windows and doors. BFRC rated energy efficient windows and energy efficient doors carry a ‘rainbow’ label.

  • Sheerwater Glass Expertise Cobham

    Expert Installation

    Our specialist team has been supplying and installing Replacement Greenhouse Glass in Surrey for more than 40 years. With our skilled workmanship, our Greenhouse Glass lasts well into the future. If you’re looking for friendly, efficient and professional glass installers, you’re looking for Sheerwater Glass. We proudly hold a Checkatrade score of 9.8, so you know you can rely on us.

  • Woking Quality

    Unrivalled Quality

    Combining the highest quality materials and tools available on the market with years of expertise, we guarantee excellent quality; ensuring your Replacement Greenhouse Glass looks outstanding. We take the time to source the highest quality products and materials across all our glass and glazing services, so you know you can rely on us.

  • energy-efficient

    High Performance

    Our Replacement Greenhouse Glass is durable and strong; performing excellently against the elements and withstanding daily wear and tear. Having replaced greenhouse glass for over 40 years, you know you can rely on Sheerwater Glass.

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Need to Replace Greenhouse Glass?

We have glass to fit traditional span, lean to or Dutch light designs, so any broken greenhouse glass can be replaced at a fraction of the cost of a full replacement greenhouse. Greenhouse glass is usually 3mm thick and slightly weaker than standard glass. This is important if you have children, because there is a greater risk of accidental damage or injury.  Therefore, you can always upgrade the glass in your greenhouse to toughened/safety glass or even 6.4mm laminated glass.

What do we offer?

Sheerwater Glass stocks replacement greenhouse glass at all standard sizes, allowing us to repair or replace anything from a single broken or damaged glass pane to an entire greenhouse at a low cost. The glass panes that we keep in stock are measured at:

  • Standard sizes of 24” x 24” (609.6mm x 609.6mm), and 18” x 24” (457.5mm x 609.6mm)
  • Dutch lights, measuring 28¾” x 56” (730mm x 1422mm)

These products are available at the standard 3 mm thickness, or if necessary can be upgraded to toughened or safety glass. We can also supply laminated glass for these measurements at a thickness of 6.4 mm, allowing us to provide a product that is tailor-made to your requirements. At Sheerwater Glass, we can supply greenhouse glass panes to fit any variety of greenhouse.

We can help with any questions or concerns you have about purchasing the correct type and size of greenhouse glass and once you are happy with your product, one of our expert team of fitters will be available to install your new greenhouse glass safely and correctly. We will in addition provide aftercare and maintenance advice, ensuring you get the most out of our service and new product.

Why choose glass for my greenhouse?

Greenhouse glass specifically is manufactured to a standard thickness of 3 mm. While the optical quality of the glass is of less importance, it importantly allows up to 90 % of ultraviolet light to pass through. In addition, when fitted correctly horticultural glass panes are weather tight, which provides and ensures a safe environment for plants kept inside the structure.

The glass itself will effectively retain heat and humidity: on a typical British summer day, the inside of a fully functioning greenhouse can reach temperatures of around 40 C. These properties all help to create the ideal and optimum growing conditions for plant life to proliferate.

Greenhouses will generally fall into two categories; traditional span (using a modern glass pane measurement), and Dutch light. A term originating from a different measurement of glass pane, Dutch light panes are larger in size, usually designed to create a larger glazed area which will allow more light. The term ‘Dutch light design’ will nowadays often refer to a greenhouse built with these larger panes uncut, and with sloping sides, wider at the base than at eaves height.

Greenhouse glass is designed to create the best internal environment for efficiently growing plants and vegetables.

What is greenhouse glass?

Greenhouse, or horticultural, glass is the traditional material used for the windows and panels of a greenhouse. Standard raw materials of soda ash, sand, dolomite, iron oxide, limestone and salt cake undergo a manufacturing process known as the Float or Pilkington Process.

This involves the melting and mixing of these materials at a high temperature. The resultant mixture is then transferred to a molten tin bath to create the perfectly flat surface required for a glass pane. The product is then slowly cooled in a process known as annealing. This culminates in the creation of a glass type known as Annealed glass – the industry standard.

Safety considerations of Greenhouse Glass

As with all glass products, safety and risk factors must be taken into consideration.

Greenhouse glass is manufactured at a standard measurement of 3mm thickness. While this is ideal in helping create the conditions required in a greenhouse, it does leave the panes more vulnerable and easier to break than the glass used in the windows in a domestic property for example. This aspect should be taken into consideration for those with young children or a busy garden environment, as there is a higher risk of accidental damage or injury. To this end, horticultural glass is also available in a textured glass format.

Alternatively, toughened safety glass is available, or even glass at a thicker 6.4 mm. These products provide a higher resistance to breakage, and are designed to give peace of mind to those who feel that their greenhouse is slightly more at risk. If when selecting your glass you feel unsure as to the safety considerations, our expert team at Sheerwater Glass is on hand to give the highest level of professional advice.

Why choose Sheerwater Glass?

Here at Sheerwater Glass, customer service is paramount, which is why we have out-lasted many competitors . We buy all of our glass products from only the most reputable manufacturers and suppliers and all items are rigorously inspected upon arrival for any potential damage or fault, ensuring only products of the highest quality are then passed on to our valued customers.

“Your fitters completed a very neat installation without any damage to the surrounding masonry. Their manner was courteous and unobtrusive and we are very pleased with the job.”

Mr & Mrs H of Pyrford.

Our staff are on hand to help with any queries you may have or advice you feel you may need. Our skilled team of fitters are available to install your new product at your convenience, at the highest degree of professionalism. With 40 years of experience working with local customers in Surrey and its surrounding areas, Sheerwater Glass is committed to providing the most competitive greenhouse glass services. To make an enquiry or please call us on 01932 344415.

Should you not see your requirements listed, please don’t hesitate to give us a call, we will be only too happy to help.

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