Harald Berg

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windows folding doors entrance doors sliding doors fire resistant doors facades aliuminium solceller homeimprovement wholesale building materials aluminium windows bi-folding doors curtain wall systems fire-resistant systems timber windows timber aluminium windows custom doors energy efficiency home design quality manufacturing technical support project management installation services bespoke solutions high insulation burglar resistance thermal performance sound insulation low-e glass self-cleaning glass acoustic glass durable materials maintenance-free slim profiles modern aesthetics glass facades architectural glass flexible configurations custom manufacturing glass door systems maximized light space-saving design integrated window systems weather resistance safety glass aluminium frames innovative design solutions residential projects commercial projects custom size options regulatory compliance sustainable building solutions detailed technical drawings performance testing interior design elements exterior design applications long service life project references environmental services renewables & environment productivity