Replacing your windows is a significant home improvement, but it's not as simple as just picking a style and colour. There are important building regulations to be aware of. Here's a straightforward guide to what you need to know.
Do Window Replacements Need Building Regulations Approval?
Yes, in most cases. Replacement windows and doors must comply with Part L (Conservation of Fuel and Power) of the Building Regulations in England. This is designed to ensure new windows meet minimum energy-efficiency standards. Glazing work must also meet safety glazing requirements under Part K.
What is FENSA?
FENSA (Fenestration Self-Assessment Scheme) is a government-authorised scheme that allows registered installers to self-certify that their work complies with building regulations. When you use a FENSA-registered installer like Rapide Frames, they will:
- Ensure the work meets all necessary standards.
- Notify the local authority on your behalf.
- Provide you with a FENSA certificate upon completion.
This certificate is an important document. It proves the work was done legally and will be required if you sell your property.
What is CERTASS?
CERTASS is another government-authorised competent person scheme, similar to FENSA. Installers registered with CERTASS can also self-certify their work and notify the local authority on your behalf. Whether your installer is registered with FENSA or CERTASS, the outcome for you as a homeowner is the same: compliant work and a valid certificate.
What if My Installer Isn't Registered?
If you use an installer who is not registered with a competent person scheme, you (or they) will need to apply to your local council's Building Control department for approval before the work begins. This involves an inspection and an additional fee. Failure to do this can result in:
- Difficulties when selling your home.
- Problems with mortgage applications.
- Potential enforcement action from the local authority.
Using a registered installer from the start avoids all of these complications.
Planning Permission: Is It Needed?
For most like-for-like window replacements, planning permission is not required. However, there are exceptions:
- Listed Buildings: You will likely need Listed Building Consent for any changes to windows.
- Conservation Areas: Replacing windows on principal elevations or those visible from the road may require planning approval. There may also be restrictions on materials and styles.
- Flats: If your flat is in a building that is listed or in a conservation area, additional rules may apply.
If in doubt, check with your local planning authority before proceeding.
Why Compliance Matters
Beyond the legal requirements, compliant windows offer real benefits. Building regulations set minimum standards for thermal performance, which means new windows will help keep your home warmer and reduce energy bills. Safety glazing requirements also protect you and your family.
Choose a Registered Installer
The easiest way to ensure your window replacement is fully compliant is to choose a FENSA or CERTASS registered installer. At Rapide Frames, we are fully registered and handle all the paperwork for you, giving you complete peace of mind.