You should choose a company not based on product prices and pretty pictures, but on customer reviews and how long they've been in business. Most installers work for 1-2 years, or even just one season, and then good luck finding them when the doors start peeling or the windows leak. Raumaster has established a reputation in the market for several years, so you can count on their warranty and quality, as it wouldn't make sense for them to mess things up. I looked up reviews about Raumaster before getting my glazing done, and people have good things to say about them too.
