Lyn Miles, chief executive, said the move towards PowerGlaz was improving overall margins and a further two production lines were scheduled to open next year, doubling capacity.
Total sales rose £1m to £17.4m in the year to September 30 as pre-tax profits increased from £1.9m to £2.8m.
Earnings per share rose from 3.1p to 4.7p and the proposed final dividend of 0.75p will lift the total pay-out for the year 15 per cent to 1.15p.
The shares - priced at 170p for a placing that raised £7.3m in July - closed up 24½p at 240½p.
by David Blackwell