
Orangery With Roof Lantern & Bifolds
Orangery With Roof Lantern & Bifolds
Sealtight Windows is a family-run business with over 20 years of experience in manufacturing and installing Kommerling UPVC windows, doors, orangeries, and conservatories across Teesside and surrounding areas. They pride themselves on a straightforward process, offering one price for the work required, with quotations valid for 30 days and no high-pressure sales tactics. All work is manufactured and installed by their own experienced tradesmen to high standards, ensuring minimal inconvenience.
The team, boasting over 40 years of combined experience, values customer care and satisfaction, with many clients coming through recommendations. They offer a second-to-none aftercare service and are available in the factory and showroom daily. Their process is simple: one price, no deposit required (subject to contract value), and fully guaranteed with an insurance-backed guarantee for peace of mind.

Orangery With Roof Lantern & Bifolds

White Conservatory

Orangery With Roof Lantern

Conservatory & Windows
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Sealtight Windows is a family-run business with over 20 years of experience in manufacturing and installing UPVC windows, doors, orangeries, and conservatories across Teesside. Their listed services include Windows & doors and Extensions.
Sealtight Windows (N E) Ltd is registered at 16/17 Tees Court, Wallis Road, Skippers Lane Industrial Estate, Middlesbrough, TS6 6DX, in North East.
Sealtight Windows (N E) Ltd states that it works across Teesside, Cleveland and Stockton On Tees.
Accounts filed for the year to 2025 report 9 employees, which places the company in the 1-9 employees band.
Companies House lists Sealtight Windows (N E) Ltd as active, with accounts most recently made up to 2025-09-30.
Sealtight Windows (N E) Ltd displays Certass, Solidor, Pilkington and Kommerling on its website.
Sealtight Windows (N E) Ltd works in Residential.
Sealtight Windows (N E) Ltd was incorporated on 1998-10-28, though the company says it has traded since 2002.
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