We recently used The Traditional Shutter Company (www.thetraditionalshuttercompany.co.uk
), and are very happy with our cafe shutters. We also have a north-facing room, and only wanted half-height.
We had got a quote from Plantation Shutters, who were marginally cheaper, but their lead times were much longer (10-12 weeks?), and their shutters come from China, so there could have been delays on top, given the current situation.
The Traditional shutters are made in E Europe, and were fitted within four weeks of the survey. They were also very friendly and knowledgeable, taking time to help me decide exactly what we wanted. Their shutters are also solid wood, not MDF (which Plantation are) - to be honest, I’m not sure it really matters, we had MDF at our previous house and they were lovely too. It was really the delivery time that influenced our choice, and the cost difference was pretty marginal.
Hope that’s some help.