Most PVCu systems will now give you this option. As a generalisation Internally beaded windows (where the glass is held in from the inside) are considered more secure and burglar resistant. That said there are a lot of satisfactory externally beaded PVCu systems about - many of which feature either internal wedge gaskets or a "double sided" tape which holds the external bead firmly in place. You should investigate this particular issue with your supplier. Areas serviced: Farnborough & Aldershotwww.7counties.co.ukBranksomewood Road, GU51 4JS

Amazon?’s objective is to design and install quality, stylish products with the minimum of fuss and with the maximum impact. We are the largest local home improvement company serving Hampshire, Surrey and the surrounding areas and have been trading since 1989. We pride ourselves on providing quality craftsmanship along with competitive prices.www.amazonwindows.co.uk8 Reading Road South, GU51 9QL

Hart Windows and Glazing Ltd situated in Fleet, Hampshire, have over 27 years experience in the repair, supply and fitting of many types of windows, doors and conservatories. Hart Windows boast a large showroom with a number of beautifully crafted windows and doors on display in many different styles from white PVC-U through to Woodgrain, Mahogany, Lightoak and Rosewood finishes. Areas serviced: Farnborough & Aldershotwww.hartwindows.co.uk63-65 Albert St, GU51 3RN

As one of the areas leading window and conservatory suppliers we offer a full design service from initial conception with FREE C.A.D. design service, through the planning stage if required and on to the final installation. Our surveyors, installers and builders are again all locally based in the Berkshire, Hampshire & Surrey area's of the U.K. and as with any good window and conservatory suppliers we provide a full Ten Year Guarantee. Areas serviced: Farnborough & Aldershotwww.purposemade.co.ukRedfield Stables/unit 2 Redfields La Church Crookham, GU52 0RB

We are a small friendly family run business which offer personal qualities and values. Choosing Sunshine Conservatory co could not be easier, we visit you at your home at your requested time, discuss your needs and with you we will design the conservatory that you want. We then undertake all of the stages from building the base and brickwork, installing the roof and any electric or heating required. Areas serviced: Farnborough & Aldershotwww.sunshineconservatory.co.uk117 Aldershot Rd, GU51 3GZ