You still want to clear it yourself before selling, or a sibling says so. For you, here is who to hire and how the cost is set. The going rate itself varies widely with the size of the house and the volume of things, and as we are not a clearance company we do not put a figure on it. When choosing a company, check that the quote breaks down by the following.
There are broadly three kinds of company. Junk removal carries out furniture and appliances in bulk, priced by volume and truckloads. Estate clearance sorts what to keep from what to dispose of as it goes, and because of the sorting is priced by workers and days. Specialist cleaning disinfects and deodorises what ordinary cleaning cannot fix (smell, bodily fluids, pests, rotted food waste) and is quoted separately from clearing.
What moves the cost: the volume (number of truckloads), the number of workers and days, disposal fees (tipping charges and item-by-item costs such as appliance recycling), the building (an upper floor, stair width, how close a truck can get, parking), whether specialist cleaning is needed, and offsets for anything they can buy. A Toyama farmhouse has a large floor area plus a barn and kura, so city-flat rates do not transfer. Always check whether the quote covers the main house only or the barn and kura too.
One point of law when choosing a company. Waste from a household is "general waste", and collecting and transporting it as a business needs a permit from the mayor (Waste Management Act, Article 7). The Ministry of the Environment warns that an industrial-waste permit or a second-hand dealer's licence alone does not allow carrying household waste, and that operators touring with "free collection" offers have been involved in inflated bills and illegal dumping. Toyama City collects household waste itself or through contractors, and says it does not currently issue permits for collecting household waste. For a house in Toyama City, ask the company where and how the removed contents will be taken, and check with the city's waste section too. The National Consumer Affairs Centre has also published complaints about estate-clearance services adding charges on the day and disposing of items that were meant to be kept. The things to check are whether the quote states the work date, the scope, the conditions for extra charges and a list of items to keep.
There is one more cost that never appears on a quote: travel from outside the prefecture, and days off work. Even with a clearance company, you need to be there for the quote, to sort what to keep, on the day of the work and to check the result, which means at least several trips home. Turn those trips and days of leave into money and, on top of the quote, it is an outlay you cannot ignore.