"KÖMMERLING UPVC Doors and Windows have been delivered by Winsta Guwahati on time. The staff is cordial and listens to the needs of the customer. The Installation Technicians have installed the doors and windows professionally with finesse. I hope Winsta will uphold the same value for money to all prospective customers of upvc doors and windows.”.

"They are the installers of upvc sindows and doors. The material used is good as it is fire retardant, noise cancelling, maintenance free. They have affiliation to koemmerling a german company with manufacturing facilities in india. Although there are many competitors like fenesta and lingel. This one is cheaper than others as their rate for sliding upvc door systems is around 700 rs per square feet. The team is a little slow in generating quotations and turning up on site for measurements. But overall good quality.”.