HI i work for a small window company for 3 years now and went for a job with anglian a few weeks ago they go in well over the price they can do then keep given you discounts to lure you in. they just get the job done and dont account for any hold ups so rush the job even my company give a 10 year guarantee sometimes smaller companys do a better job because they are trying to make good name for themselves where as anglian already a nationwide company and looking for profit if you would like some advice just ask or pm me hope this helps