Sealtight Windows NE Ltd provide numerous window options for customers across Middlesbrough. We provide a large range of glazing options, and manufacture and install Kommerling windows, with an extensive frame and colour range – highly customisable to suit your exact requirements. For quality windows in Middlesbrough, look no further than Sealtight Windows NE Ltd.

For over 40 years, our Kommerling UPVC windows have lead the way in the industry, providing innovation and quality, driven by keen environmental awareness.
We at Sealtight Windows NE Ltd are considerate of our environment, and want homes within Middlesbrough to be energy efficient. A great first step to improving the energy efficiency of your home is to invest in quality UPVC windows.

As a commitment to sustainability, any lead additives have been removed from our Kommerling windows, and have been replaced with recycled materials. We provide our customers in Middlesbrough with environmentally conscious products, as we believe both businesses and consumers should try to do their bit to reduce their carbon footprint.

Not only are our installations and products great for the environment, they offer a whole host of other benefits too, including quality construction and advanced insulation properties, contributing to reduced heating bills for your home.

Unlike other window manufacturers and installers, who use an outdated 3 chamber profile, our UPVC windows have a patented 5 chamber profile, allowing for increased thermal performance – and this is one of the main reasons our windows are so much more efficient than those of our competitors! This added efficiency does not compromise the style and quality of our windows: they are fitted with soft sculptured lines for the frame and sash, and have low line gaskets which create a much slimmer sightline.

All of our windows are fitted with the following as standard:

  • A profile depth of 70mm
  • A 5 chamber profile, which allows increased insulation
  • Reinforced profile
  • Finished in a choice of 44 different colours
  • High security from internal beading
  • A 25 year Colourfast guarantee

Sealtight Windows NE Ltd are partnered with Kommerling, allowing us to provide you with windows which can be tailored to your exact specifications. No matter the style you’re hoping to achieve, our highly customisable windows will fit perfectly into your home.
Our window frames are fitted with Pilkington glass – another industry leader which offers unparallelled product development and quality. The strength of this partnership allows us to provide our customers with the most innovative products which are far superior to those of our competitors.

Don’t settle for substandard windows. For quality windows in Middlesbrough, choose Sealtight Windows NE Ltd. Contact us today!