Local to the Durham area, all of our plumbing & heating engineers are gas safe registered and can service, maintain or replace your boiler, help unblock your drains and fit your bespoke bathrooms. Call now for your FREE no obligation estimate. Local to the Durham area, all of our plumbing & heating engineers are gas safe registered and can service, maintain or replace your boiler, help unblock your drains and fit your bespoke bathrooms. Call now for your FREE no obligation estimate.