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I need to install some ducting to extend the air flow through a new concrete floor in an extension to an air brick in the existing wall. What layer should the ducting go in? I thought about at hardcore stage but wouldn't the ducting get crushed with the weight on top and also I won't be able to...

I gave a customer a quote to replace various bits and pieces. He's accepting the quote on the basis that I supply him a copy of MY suppliers invoice for the parts used. This is the first time I've been asked for this. How can I tell him to F Off in polite terms?

I've bought a new box set of drill bits and driving bits. In it there are a couple of rounds plastic bits called finders? They are common with most of these type of box sets. What are they and how do I use them?

Bit confused here. I've got a single skin block wall which I want to insulate with Celotex. So the plan is as recommended by their website: Wall - Celotex (with joints sealed by foil tape) - 25mm battens screwed through Celotex into wall - plasterboard screwed to battens. The website...

I'm putting the pipe work down for CH in a 2-up 2-down house I'm refurbing. RGI will be fitting the boiler. I'm using plastic throughout except for where the pipes will be seen. I've read (here) that copper must be used within 1 metre of the boiler. Is this to safeguard the plastic against...

Hi, I'm building a single skin (with thermal panels to meet regs), single storey extension and need some help regarding the roofing. 1. How does the wall plate at the lower end of the roof need to be attached to the single skin block work? I read of bedding it on mortar, strapping it...

Our boiler fires up (flame visible) but is not pumping out any hot water (CH or to the taps/tank). Maybe it's coincidental but the immersion heater trips the RCD as soon as it is switched on. The boiler is an Ideal. Any ideas what the problem might be? Thanks.

I'm building a single storey extension (WC/shower and utility room). However, width is at a premium, only about 2.1m external measurments, therefore every inch counts. What is the thinest wall I can build (block as it will be rendered) that still meets regs? The building officer said look on...

I want to add some electrics into the loft, to power a couple of PCs (servers), exterior security lights, CCTV cameras and some lighting in the loft. I have a spare way I can use in the main CU. What would be the best way to go about achieving this?