Cost Of Inbuilt Wardrobes . 3 door (up to 3.6m). You can buy budget range fitted wardrobes for around £800 to £1,200 per linear metre. You’ll want these useful and greatlooking wardrobes! Home & Decor from www.homeanddecor.com.sg 5 rows the most common factors that will determine the installation cost of your fitted wardrobe are: Since 1999, we have specialised in custom designed and made wardrobes to suit any budget. Built in linen cupboards, pantries and walk in robes with a huge variety of.