What is Certass?

Certass logo

Certass is a Competent Person Scheme that regulates the double glazing industry. The Department for Communities and Local Government set this scheme up in 2006. It’s main function is to ensure that double glazing installations follow Building Regulations. It also protects the buyer’s interests and installation quality.

When a company registers with Certass, it first needs to prove its quality. This regulatory body insists that all registered members follow strict installation standards. Moreover, they also need to show they know local building regulations. As a result, their installation is completely compliant with regulations. What’s more, you benefit from their superior installation quality.

The most important part is, all companies registered with Certass can give you a certificate of compliance. When you get your double glazing replaced, it needs to conform to the standards set by building regulations. To get this certificate, an officer from the local authorities needs to inspect the installation. Once he is satisfied, he will issue a certificate.

Certass-approved installers, on the other hand, will install your double glazing following all regulations. Moreover, they can issue you the certificate once they complete the installation. They have the authority to do so as members of the Competent Person Scheme.

What is a Competent Person Scheme?

Competent Person Schemes are regulatory bodies. They ensure that double glazing installations meet building standards. To this end, they invite double glazing companies to register with them. However, the companies need to first demonstrate high quality and superior customer service.

In April, 2002, building authorities decided that double glazing installation should be regulated. They did so to ensure better thermal performance. However, the regulations also cover ventilation and fire safety. As a result, all double glazing installation needs to meet certain criteria.

The 6 Competent Person Schemes are bodies that ensure installations comply with these criteria. They vet, monitor, and manage double glazing companies. As a result, you are sure of the quality of installation when you hire an accredited company.

Certass accredited installers give you high quality double glazing installations

How Does Certass Help You?

Certass has two important duties. One is to make sure all double glazing installation meets the building regulations. The other is to protect your rights as a customer. There are two way in which it does this. The first is obviously by policing the quality of the double glazing companies. As a result, you get double glazing of the highest quality. Moreover, it gives you all the features that building regulations demand.

Additionally, Certass also protects your money. First, it protects your deposit money. The double glazing companies cannot withhold your deposit if they are unable to complete your installation. Second, it secures you against poor installation quality.

The installers have to give you an insurance-backed guarantee on different aspects of your installation. You get a standard 10-year guarantee on the installation performance. Moreover, you get separate warranties on aspects like the sealing, the hardware, and even the paint or surface treatment. As a result, if anything goes wrong with your installation, the installer will have to fix it.

Finally, all registered installers can give you a certificate of compliance. You do not have to spend time visiting the local building authorities. Your installers will follow regulations and give you a certificate at the end.

How Does Certass Operate?

As mentioned earlier, Certass invites double glazing companies to register with it. However, the company cannot just become a part of their network automatically. They judge the applicant on a piece of installation. This has to meet industry standards as defined by EN17065. In addition, the sample also needs to comply with specific license requirements of DCLG, TrustMark, PAS2030, as well as Certass.

If the company meets these requirements, the scheme registers them. The company can then display the accreditation. If you need a local installer registered with Certass, their website will help you find one. As a result, you get trustworthy service and assured quality.

Moreover, if you are not satisfied with the installation, you can inform them. Since Certass monitors the performance constantly, these companies have to give their best at all times.

Why is it Important to Choose a Certass Accredited Installer?

certass approved installers protect your money and give you a better performing home

Certass is one of six Competent Person Scheme. Additionally, it is the most popular one after FENSA. The name is synonymous with high quality installation and great customer service. When you choose a Certass approved installer, you know you will get more than satisfactory double glazing.

You will get a company that is a part of a large and reliable network of double glazing installers. What’s more, they safeguard your money and well-being at all times. You get complete financial protection with warranties and indemnity.

Finally, you get quality installation that is easily certified. You don’t have to spend extra money or time to get your double glazing approved and registered. Your installer will do that for you.

Superior Installation

Since Certass monitors and regulates the quality of its members, you always get high-quality installation. You can easily find an approved installer near you. They will give you double glazing installation that meets the highest industry standards. As a result, you can rest assured knowing that you will get great double glazing that performs well.

Complete Protection

Certass protects your financial interests and your double glazing at every step of the process. First, you have complete deposit protection. Second, you get an insurance-backed guarantee on performance and installation quality. Finally, you even get additional warranties on various parts of the installation.

Easy Certification

All double glazing companies registered with Certass are well-versed with local building regulations. They are also qualified to assess the quality of your installation. The best part is, they can also issue the certificate of compliance. Finally, they will register your double glazing with the relevant authorities for no extra charge. All in all, you get everything you need without needing to lift a finger!

How Can You Find Local Certass Accredited Installers?

If you are looking for reliable double glazing installers, we can recommend installers accredited by Certass as well as FENSA. Simply contact us for more information about the installers we can propose for you in your area.

Alternatively, you can hop on to our online quoting engine. Not only will you get a quote for your double glazing needs, but also a list of approved installers near you.

Frequently Asked Double Glazing Questions

Frequently Asked Double Glazing Questions

How much is double glazing per window?

Double glazing prices per window can vary from around £150 to £600 depending on the specification. The window style, type of glass, frame colour and handles are all contributing factors. To find out the true double glazing price per window it is a good idea to get a number of quotes to compare.

What is the average cost to double glaze a house?

The average cost to double glaze a house will depend on the size of your house and the number of windows. To double glaze a flat or apartment it will probably cost around £2,000. The average cost to double glaze a house is usually between £4,500 to £7,500. If you collect a number of double glazing quotes you will be able to compare companies and prices.

Is double glazing expensive?

Double glazing can be an affordable addition for many homeowners. The price you pay can depend on the quality of the windows and the energy ratings. Other factors are the style of the windows, the colour of the frames and the type of glass. Why not get an online double glazing quote to get an idea of the price.

How much does it cost to install a window?

The prices given in our pricing tables, our online quotes and our costing calculators reflect the price of the window itself as well as the cost of installation. For example, a 500mm x 500mm casement window will cost between £150 and £175 including the cost of installation.

How much does it cost to double glaze a 3 bed house?

On average a double glazed window will cost between £350 and £400, with a uPVC door typically costing £600. This means that double glazing a 3 bedroom semi can cost between £3500 and £5000.

Are Double Glazed Windows Good For The Environment?

Once of the best ways of making your home more energy efficient is insulation. Double glazed windows act as another layer of insulation, helping to prevent the loss of valuable heat.

If I Use Double Glazing on the Web Who Will Fit My Double Glazing?

Double Glazing on the Web have a fully accredited network of local installers. Once you have created your free online quote we will put you in touch with up to three reputable local suppliers. Each of these suppliers will offer you a free no obligation quote and who you choose is completely up to you.

Is double glazing easy to break?

Double glazing is a strong option for windows compared to single glazing. The frames are durable and there are high security locking options. As double glazing is made from glass it is possible to break however you will have to exert quite a bit of force to do this. This is practically impossible to do without making a noise.

What Does Double Glazing Do?

Double glazing makes your house more energy efficient, keeping heating in and keeping the cold out during winter months. During summer months, it helps keep the hot air out, keeping your house cooler. It also works to insulate sounds from busy areas and roads, leaving your house more peaceful and quieter.

Does Double Glazing Block Sound?

Double Glazing not only provides heat insulation but it also provides sound insulation too. Double glazing is perfect for houses in busy areas and streets.

How Do I Know If My Double Glazing Needs Repaired?

There are four tell-tale signs that your double glazed windows need repair or replaced: There are chips and cracks in the panes of glass; there is condensation (misted windows) between the two panes of glass; the window allows cold air through; water begins to seep through the frame. If your double glazing does any of these things, you may need to get your double glazing repaired or replaced.

Is uPVC Flammable?

No, uPVC isn’t flammable and is actually a fire retardant.

What Can Cause Double Glazing To Crack?

Double glazing can crack for what appears to be no particular reason at all. A sealed window unit faces constant pressure either side of the glass, however, most of the time double glazing is strong enough to deal with this. Winter can be one of the worst time for cracked glass as the difference of temperature on either side of the glass stressing it to the point it can crack.

Should I Double Glaze My Windows?

Double glazing works to make your house more energy efficient saving you money on your heating bills. Double glazing also provides sound insulation which is perfect if your house is situated near busy roads and noisy areas. Double glazed windows are also tougher and harder to break than single glazing windows making your house more safe and secure.

How Do I Know If My Double Glazing Needs Replaced?

Double glazing will need replaced after a while due to the nature of the design – the gas that separates the two window panes slowly leaks out over time meaning the energy efficiency of your window is compromised. If your double glazing allows cold spots; water to seep through the frame; has cracks or chips in the window or has a build-up of condensation between the two panes of glass (misted windows), you should probably look into getting your double glazing replaced or repaired.

How Long Does Double Glazing Last?

It is important to note that the argon gas that separates the panes of gas, giving double glazing its energy efficiency will eventually leak out overtime. Double glazing has an average life span of about 20 years, however, this can vary depending on materials used and the installation.

Is Double Glazing Worth It?

Double glazing helps make your home more energy efficient as it prevents the loss of heat. During the summer, it helps to keep the heat out of your home. It provides your home with sound insulation which is perfect for houses that are in busy areas and streets. Double glazing also makes your home safer and more secure.

Is Double Glazing Easy to Break?

No, double glazing is not easy to break which means your home will be more secure. When attempting to smash double glazing often what happens is that the first pane of glass and the second will remain intact. This is due to the argon gas working as a shock absorber. This will mean the smash is very loud but unsuccessful on the first attempt.

Should I replace my old sash windows?

Sash windows are a key feature for many traditional period buildings. Sash windows were traditionally built using timber, which is fairly high maintenance and has a tendency toward rotting and warping. Over time, these windows can become draughty and insecure. uPVC sash windows are a great way to experience the benefits of modern double glazing, without sacrificing the aesthetic of your home. uPVC sash windows will not rot or warp and require little maintenance. They are also thermally efficient, which means that your home will not require as much heating.

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