Anglian were VERY EXPENSIVE (nearly £7,500 for four full size windows and one small one) but we thought it would be worth the cost having previously had a good experience with them. We were wrong - as their own fitters told us, they have gone down hill drastically in recent years, and their service was AWFUL AND STRESSFUL IN SO MANY WAYS: 1) The installation left MUD, DIRT AND DAMAGE on our walls and all over the ground floor, bits of wood and dust all over the installation sites, fingerprints all over the windows (including one that can't be reached without scaffolding) and they dropped expandable foam into our guttering and down-pipe, which would have cause an expensive blockage had I not noticed. 2) They installed THE WRONG WINDOW PANE (clear instead of frosted) in our bathroom, which left neighbours able to see in and my wife (who lives with a disability) unable to use her customised bathroom for the six weeks it took to fix it. 3) The installation left GAPS IN OUR WALL - I could see clear daylight through some holes. This let water into the walls - we now have WATER STAINS that we will need to repaint over, at our own cost. 4) SEVERAL PRODUCTS WERE FAULTY OR DAMAGED - for instance, sash windows fell open unless locked shut, and several catches and locks were chipped and damaged. This took over three months to fix. 5) It took EIGHT MONTHS and 5 visits to complete a job we were assured, even in the pandemic, would only take 3 months and one visit. 6) During this time they REPEATEDLY MISSED OR CANCELLED APPOINTMENTS - sometimes with no notice at all, even though we'd waited in for them. They claimed they'd tried to call several times for these missed appointments, but their own call register shows this wasn't true. 7) I lodged several formal complaints, which were escalated to senior management. The first one took over two months to even acknowledge. I NEVER RECEIVED A RESPONSE TO MY COMPLAINT when it was escalated to Regional Manager Martin Dempsey. My follow up emails were just ignored. It became apparent early on that they really didn't care about the shoddy service they were providing - they just wanted us to pay and go away. 8) For all the inconveniences we were offered a discount amounting to around 2% of the total bill. This doesn't leave much over from the cost of the parking permits we had to give them for the multiple visits and the cost of paint that we'll need to paint over the water stains and chipped walls. They tried to claim that a small plastic vent and small metal child lock they installed was worth an additional £100(!), but this was just correcting items missed on the original installation. Please save yourself the stress and effort and get your windows elsewhere.