If there is a problem with drains or overflowing manholes outside the boundary of your property the responsibility usually lies with. For all your plumbing & heating requirements from designing heating systems including underfloor heating to changing the washer on a tap installing bathrooms & wet rooms working between 7:30 – 18:30 and also 24-hour call outs gassafe registe ... This international company has been heating homes for decades and can trace its roots back to 1866. What pre-hire questions.