Scottish Water is the single national wholesaler for both domestic and non-domestic water and wastewater across Scotland. Since 2008, non-domestic customers have separately chosen a Licensed Provider (retailer), such as Business Stream, Castle Water, Wave Utilities or Everflow. The retailer handles billing, customer service and contracts. Scottish Water still owns and operates the network of pipes.

1 April 2008. Scotland was the first part of the UK to open its non-domestic water market to retail competition under the Water Services etc. (Scotland) Act 2005. England followed nine years later, on 1 April 2017.

Yes. Any non-domestic premises in Scotland can choose its Licensed Provider. That includes schools, charities, public bodies, and businesses of every size. Domestic customers cannot switch; their water is supplied directly by Scottish Water. The switch is admin only and takes around four weeks.

The Water Industry Commission for Scotland (WICS) regulates the market by setting wholesale price controls and licensing retailers. CMA Scotland (the Central Market Agency) operates the day-to-day market settlement and switching process. Disputes that cannot be resolved with the retailer can be escalated to the Scottish Public Services Ombudsman.

Scottish Water is the publicly-owned wholesaler that owns and operates the pipes and treatment works. Business Stream is the retail arm that was spun out when the market deregulated in 2008. Today Business Stream is a private company in its own right, competing for accounts against other licensed retailers. But it still holds the customer book of every Scottish business that never switched.

Around four weeks from contract signature to switch completion. There’s no physical work involved. The same Scottish Water pipes deliver the same water. The only thing that changes is who you receive the bill from. No engineer visit, no service interruption.

It varies by postcode. Scottish Water’s wholesale rates are set by WICS and competitive with English wholesalers. But where a business has never moved off the 2008 default tariff, the gap between what they pay and what’s available on the open market can be larger in Scotland than in England. Our guide to what makes up your business water charges breaks down where the savings come from.

Yes, where charges have been demonstrably wrong. The backdated window is six years under the Limitation Act. Common refund grounds include incorrect surface water drainage classification, faulty meter reads, or an incorrect return-to-sewer percentage. A water audit reviews your account against retailer charges and recovers any overpayments. See our Inspire Leisure case study for an example of a £110,000 refund recovery.

There are two of them. Surface water drainage covers rainwater running off your property into the public sewer, and roads drainage is a Scotland only charge that goes towards draining public roads. Your water retailer bills you for both, using the wholesale rates set by Scottish Water.

Often, yes. If the rainwater from your premises doesn’t drain into the public sewer, you can usually claim a surface water drainage rebate and stop paying it from then on. You apply through your licensed retailer and show how your site actually drains. A broker can take care of the whole thing for you.

Your property might qualify if its rainwater drains into a soakaway, a watercourse or a private system instead of the public sewer. You could also be overcharged if the drainage area on your bill is bigger than your actual site. A quick drainage survey confirms whether you’re eligible.

Scotland has a single wholesaler, Scottish Water, so the wholesale prices are the same across the country, and there’s an extra roads drainage charge you won’t see in England. England has several regional wholesalers, so prices change depending on where you are. In both places it’s your retailer’s fee that sets the competitive part of the bill, which is why switching retailer is where the savings are.

One licensed retailer can pull all your Scottish sites, and your English ones too, onto a single account. That means one bill, one point of contact and billing dates that line up, instead of chasing a separate supplier for every location.

Usually it’s one of three things. You might still be on default “deemed” rates because you’ve never switched retailer since the market opened in 2008. You could be paying surface water or roads drainage charges you’re entitled to claim back. Or your bills might be based on estimated readings rather than actual ones. A quick review normally pins down which it is.