Balcony and terrace doors

The secret of the Lammin balcony and terrace doors is the most robust framework structure on the market. Despite the large glass surface area, the unwarping doors keep heat in very well. Heat saving is achieved by effective triple glazing solutions and reliable sealing. The Lammin balcony and terrace doors feature genuine double sealing. 

Durable door for your balcony and terrace

The Lammin balcony door and terrace doors are the right choice when you are looking for a safe, practical and durable door. The Lammin terrace doors are also a popular choice for leisure homes. We tailor-make the doors, so they are also perfect for renovating buildings. The doors have a durable special threshold as a standard allowing unobstructed going through the door.

Lammin terrace and balcony doors keep heat in well

The balcony and terrace doors of our range are a good choice thanks to their excellent weather resistance: the framework and surface treatment of the door have been designed for changing northern weather conditions. Triple glazing and high-quality Schlegel weatherstrip seals ensure that heat remains inside the house even in sub-zero temperatures. 

Lammin doors stay tidy and safe from year to year

The visible surfaces of the balcony and terrace doors are made of knotless material. That’s why our doors will be good looking and tidy even after years of use, and no resin blotches from knots will appear. Our doors have a very robust structure and at least three burglar-proof hinges so that our doors are a good choice also from a safety viewpoint. If necessary, we mount the lock cylinders of your choice.

Right door just for your home

Do not settle for a compromise when you can get just the door you want! You can decide yourself on the model and number of glasses, the door colours and fittings. At our factory, we mount the accessories you need such as fittings and blinds. Read more about door accessories!

Choose the right door model for the balcony and terrace

When choosing the balcony and terrace door, you should consider the opening direction of the door, the number of windows and their layout, and energy efficiency requirements. We’ll be happy to help you to choose the right door model – contact us!

Highest domestic content in the industry

We use high-quality Finnish materials. As an expression of the high degree of domestic content of our products, they are marked with the Key Flag symbol.

The best guarantees

We know that our products last. Therefore, we can grant different warranties for our products depending on the product group. Guarantees are given for both windows and doors.

Complaints percentage almost zero

Our products are only rarely filed for complaints. Most of the complaints involve transportation damage that are covered by the guarantee.


Financing service

If you need funding for your window and/or door purchase, it is easy to apply. Complete the application on our website, and you will get the credit decision immediately.


If necessary, we will come and measure the window and door frames on the spot. This is to ensure that the new windows and doors will fit your home perfectly.

Home delivery

We deliver the windows and doors securely directly to your site within the agreed schedule. We can also help you when you need windows and doors to your site at short notice: you will get stock products from us even in 1-2 days delivery time. 

Order just the kind of door you need

We design and manufacture the right doors just for your home. This means a tailor-made look, excellent weather resistance and the best guarantees in the industry.