Google
One of the most helpful companies for photovoltaic and solar related products around. Very competitive too. Their deliveries are some of the quickest. I would not go past them.
Bimble Solar are worth a 10/10 any day of the week.
Google
Excellent service - my order was delayed due to the Jubilee weekend thing - but they made sure it arrived as quickly as possible. Great stuff!
Simplybook
As ever - faultless!
I've been shopping with Bimble for ~10 years, through various PV systems & upgrades.