The best way is to use low energy fittings where possible. LED lighting is more than ever becoming standard for installations now. LED lighting gives off the same or more light than its halogen equivalent, but for a small amount of the running costs.
We can advise on the best ways you can make your installation more environmentally friendly.
As a company, we also recycle all dry materials produced from our work, all metal (including old appliances), and all electrical cables.