Customising a kitchen so that it fits into the rest of the house can add much needed value when it comes to putting the property on the market, according to one expert.Kitchen design specialist Frank Zappala believes the kitchen is the focal point of the house and providing it with a new appearance that integrates with the rest of the property is vital, News Community Media reports. He said Your home is your biggest investment and what you do in your home can make or break it. Those who purchase a customised kitchen can benefit from up to a 100 per cent return on investment when the house gets valued, Mr Zappala added. Buying a flat-pack kitchen limits the range available to homeowners, the designer stated, as colour ranges and cabinet sizes are extremely restricted. People looking to customise their kitchen sink to improve the clarity of their water could benefit from a Franke Triflow water filter, which is designed to fit onto a normal kitchen tap and diverts fluids through a purifying system.