Mr Punter

You may need building regs for this, and that could dictate insulation etc. You may need to do the floor and ceiling.

You have about a mile of pipe in the floor. I don't like it when the runs back to manifold are tightly spaced. Can any of the pipes go under the walls?

I understand that the full amount is covered even if you only pay a small percentage on credit card.

Unless you select the battens yourself, this is about standard. Often massive knots, twisted, bent, soaking wet. Sometimes I get a pack delivered and they are all perfect.

That must have cost a fair bit to cut, package and send. They won't be making a profit from your order! They probably expect £1000+.

Well spotted. Not terrible but you are paying for a proper job. Tell them to redo it. No fun onsite welding but if they priced for it they should do it properly.

If this is self build then you will probably be able to get cil exemption but be very careful as the rules can be inflexible.

Would it be possible to dig down to the foundation following the line of the vertical crack on the left to see where it starts and if the crack runs through the footing?

It is good to vent the cavity. It will allow the stone to dry and will help prevent mould.

Is this an RBM beam? Hopefully someone who knows will clarify.

Did you consider using Rockwool instead? No issues with fire risk.

I had a look at some previous posts. The current roof looks good. Why are you proposing having it stripped and replaced?

Did you get any other quotes? The quote seems to cover many issues.

This is a base level DPC. As long as it prevent water rising up the wall it has done the job. Chopping out bricks in sections just sounds silly. This is not halfway up the building where it will possibly allow water into the wall below, it is at ground level, where it will soak harmlessly into the ground.

I think you can hire a powered stair climber.