Replacing your windows or doors is a significant investment, so naturally you want confidence in both the products you choose and the company installing them.
One way homeowners can assess an installer is by looking at the accreditations and consumer protection schemes they belong to.
If you’ve been researching replacement glazing, you may have come across DGCOS accreditation for windows. But what exactly is DGCOS, and what does membership actually mean for you as a homeowner?
Here’s a straightforward guide.
What Is DGCOS?
DGCOS stands for the Double Glazing & Conservatory Ombudsman Scheme.
It is a consumer protection organisation for the glazing industry, covering products including windows, doors and conservatories.
Installers must go through an accreditation process before becoming members, rather than simply paying to display a logo. DGCOS states that its members have successfully passed its vetting and accreditation requirements.
For homeowners, the scheme is designed to provide additional safeguards when entering into a contract with an accredited installer.
Why Does DGCOS Accreditation Matter?
Buying new windows or doors is different from purchasing an everyday household product.
You may be committing thousands of pounds to products that are specifically manufactured for your home, followed by professional installation work.
That means choosing the installer is every bit as important as selecting the windows themselves.
Using a DGCOS-accredited company gives homeowners access to a package of consumer protections, subject to the scheme’s terms and conditions.
These include:
- Installer vetting
- Deposit and stage-payment protection
- Insurance-backed guarantees
- Consumer advice
- A complaints process
- Access to independent dispute resolution
Together, these provide another layer of reassurance alongside the installer’s own guarantees and customer service.
1. DGCOS Members Are Vetted
One of the key benefits of DGCOS accreditation for windows is that installers must satisfy the scheme’s membership requirements.
This gives homeowners an additional way to distinguish established professional installers from companies where there may be little independent oversight.
Accreditation shouldn’t replace your own research – you should still look at reviews, experience, product quality and previous work – but it provides another useful indicator when deciding who to trust with your home.
You can also find out more about Benchmark Windows’ experience and approach on the company’s About Benchmark Windows page.
2. Your Deposit May Be Protected
Paying a deposit can understandably make homeowners nervous, particularly when ordering made-to-measure windows or doors.
DGCOS provides deposit and stage-payment protection insurance for qualifying installations registered with the scheme.
Currently, this protection covers up to 25% of the contract value, subject to a maximum of £5,000, for 120 days from signing the contract.
Importantly, the protection isn’t automatic simply because an installer is a DGCOS member. The installation must be registered and DGCOS must confirm that the protection has been arranged.
Homeowners should therefore retain their contract and payment records and make sure they receive the relevant confirmation documentation.
3. You Receive an Insurance-Backed Guarantee
Another important part of DGCOS protection is the insurance-backed guarantee, often shortened to IBG.
Your installer will normally provide its own written guarantee for the work. However, what happens if that company stops trading before the guarantee ends?
An insurance-backed guarantee is designed to provide protection in those circumstances, subject to the policy terms.
DGCOS currently states that its IBGs can range from two to ten years, and the period of insurance protection may differ from the length of the installer’s own written guarantee.
Benchmark Windows states that its installations are backed by a 10-year guarantee.
That distinction is worth understanding: your installer’s written guarantee and the DGCOS insurance-backed guarantee are related protections, but they are not necessarily identical.
4. There Is Somewhere to Turn If Things Go Wrong
Most window and door installations are completed without serious disputes.
But if something does go wrong, having a clear complaints process can be extremely valuable.
The first step should normally be to give the installer an opportunity to resolve the problem.
If a dispute cannot be resolved through the normal complaints procedure, eligible consumers using a DGCOS member can ultimately gain access to an independent ombudsman or alternative dispute resolution service.
That provides an additional route for resolving disagreements without immediately having to consider legal proceedings.
For homeowners investing in substantial glazing projects, knowing there is independent consumer protection behind the installer can provide valuable reassurance.
Is DGCOS the Same as a Product Guarantee?
No.
It’s helpful to separate several different things that may protect your purchase.
Product or installation guarantee:
Provided by the installer or manufacturer and explains what is covered if a fault develops.
Insurance-backed guarantee:
Provides specified protection if the installer stops trading and cannot honour its written guarantee.
DGCOS membership:
Provides access to the wider consumer protection scheme, subject to its terms.
When comparing installers, ask what guarantees you will receive and keep copies of all documentation once your installation is complete.
Does DGCOS Accreditation Guarantee a Perfect Installation?
No accreditation can promise that a problem will never occur.
What matters is what happens if an issue does arise.
A strong installer should stand behind its workmanship, provide clear guarantees and offer reliable aftercare. Accreditation adds another layer of independent consumer protection.
Benchmark Windows highlights aftercare as an important part of its service, supporting customers beyond the installation itself.
Whether you’re considering new double or triple-glazed windows or upgrading your property with new doors, it’s worth considering the protection available as well as appearance, efficiency and price.
What Should You Check Before Choosing a Window Installer?
Before signing a contract, ask:
- Is the installer independently accredited?
- What written guarantee will I receive?
- Is there an insurance-backed guarantee?
- How is my deposit protected?
- Who handles problems after installation?
- What is the complaints procedure?
- Does the company have established premises and aftercare support?
- Can I see examples of previous installations?
A reputable company should be comfortable answering these questions clearly.
Choose Your Windows With Confidence
Understanding DGCOS accreditation for windows can help you make a more informed choice when selecting an installer.
It doesn’t simply mean a company is entitled to display another industry logo. DGCOS membership provides qualifying customers with a framework of consumer protection that can include deposit protection, an insurance-backed guarantee, consumer support and access to independent dispute resolution.
Benchmark Windows is a DGCOS-accredited window and door specialist providing bespoke glazing solutions across Sussex and the South East.
Customers can explore the company’s extensive range of windows, doors and glazing products and discuss their project with the experienced Benchmark team.
If you’re considering upgrading your home, contact Benchmark Windows to discuss your requirements or arrange a visit to the Lancing showroom.
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