Thermaglaze in Warminster (pretty sure they will come to Bournemouth)
They have a ‘non pushy sales’ policy that took some of the hassle out of the equation (some of the other tried to apply shockingly outdated sales gimmicks.)
Price wise they were close to the bottom, but not the cheapest. They talked us through the differences in some quotes to show us they were the second cheapest providing the ‘better’ quality stuff
At the time they were one of the few companies near us who used their own fitters rather than subcontractors
We had a small issue with a door lock after the installation. The MD contacted me to arrange a fix and apologised for the hassle
We visited their ‘shop’ before signing the order and they had a whole bookcase full of testimonials. Not all were 100% complementary, but the sheer quantity of them was impressive
Everest were laughably bad, Apple were stupidly expensive
EDIT – Our neighbours had a quote for something like £23K for the same set of windows. They were delighted to be offered a 50% discount and then they haggled down to 10K. We paid Circa £3.5K and had the ‘better’ units installed without any haggling