1. What is the U-value for Strømmen’s windows and doors?

We offer door and windows in timber, timber/alu, uPVC and aluminium. The U-values will vary depending on the product type. For timber sliding doors, the U-value can be down to 0,8 W/m²K, for uPVC sliding doors it can be down to 1,1 W/m²K, and for aluminium sliding doors the U-value achieved can be below 1,3 W/m²K. The U-value will depend on the configurations of the doors and windows, e.g. the glass used, the opening type and size. Detailed technical characteristics is given on the product pages separately.


2. What is the MOQ (minimum order quantity)?

We do not have any MOQ for our customers. We have the knowledge and capacity to take small and large orders.


3. What is the delivery time for an order?

After placing an order, you will normally receive your products within 4-6 weeks. The delivery time will be agreed with the customer when the order is placed. We are flexible when it comes to delivery times and we will always find a good solution in collaboration with our customers. Depending on the production schedule and size of order, the delivery times can vary.


4. Can Strømmen’s doors and windows be manufactured to individual customer requests?

Yes, all our windows and doors are custom-made to the requirements of our customers. You are free to choose the design, opening type, glass, etc, that fits your demands. Our engineers will consult you and try to find the best solution for your project.


5. Which surface finishes do you offer?

White is the standard finish for our uPVC and timber products. For aluminium products, you can choose between any RAL colour and anodization, for uPVC products we have more than 60 foils available, and for timber and timber/alu products you can choose from thousands of RAL colours, NCS colours and water based lacquers. All our products can also be produced with different colours on the profile’s inside and outside.


6. Can Strømmen’s doors and windows be made to any size?

All our products are “made-to-measure” according to the dimensions given by the customer. However, there are some restrictions for the maximum height and width of our door and window systems, but this is different for each type of product. Please check the specifications of each product or contact us for more information.


7. Where do you deliver?

All our products can be delivered all over the world. Based on your wishes, our experienced team will arrange the transport and take care of all shipping documents. The products are packed safely and placed on pallets to avoid damages and scratches during transportation. We are experienced in transport handling and we have a close collaboration with our transportation company.