All building works are fully guaranteed for 10 years
Lantern roof orangery extension

House Extensions

House extensions

House extensions, other than conservatories and orangeries, are generally considered on the basis of enlarging an existing kitchen, bathroom or bedroom. Even adding an adjoining garage, workshop, utility room or front porch can add value to a property, so if you’re considering a home extension then we can provide you with a competitive quotation.


Some types of extension do not need planning permission, while others do, depending on overall size and location. Planning rules apply to everyone so it’s wise to seek advice early and stay within the law. We can help and advise you about this and all the stages involved in the planning process from surveys, obtaining drawings, and getting approval.


Should your house extension require additional utility services, for example sewage, water, gas, or electrics we can also advise you about this. In most cases these additional services can be carried out by our building team, except for gas installations, which will need to be carried out by a suitably qualified and registered gas installer.


With certain house extensions, building regulations must be adhered to at every stage of the construction process, and it is therefore often necessary to allow for inspections to be carried out by local authority officials. Again, we can advise you about this.


Chase Window Company employs a team of experienced and fully trained tradesmen who are highly qualified to carry out most types of building work including bricklaying, plumbing and electrical works. We would be more than happy to provide references if necessary.


All building works carried out by Chase Window Company are fully guaranteed for 10 years. Our guarantees also extend to doors and windows manufactured, supplied and installed by us.

For help and advice about house extensions, visit our showroom.


Over 11,000sq ft of space with of 6000 sq ft of purpose built showrooms, one of the largest home improvement showrooms in the North London, Hertfordshire and surrounding counties. With state of the art displays and kids area all under one roof.

Opening Hours: Monday – Friday 09:00 – 17:00 Saturday 10:00 – 16:00 Sunday 10:00 – 13:00


Smaller showroom with limited range available but good for client convenience.

Opening Hours: Monday – Friday 09:00 – 17:00 Saturday 10:00 – 16:00 Sunday By Appointment Only

Contact Us

Cobury House, Unit 1
11 Pindar Road
Hoddesdon, Herts
EN11 0BZ

189 Chase Side
Enfield, Middlesex

Tel: 0208 366 6500


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