@Toodles That's very interesting to hear, thanks.  I had seen their adverts but experience of underfloor voids with their usual quota of holes, bumps and builders' detritus made me sceptical. There is also the issue of sleeper walls and external walls that are now internal. (this house was built in stages and totally remodelled at least once). That's not a reason not to give them a a chance though - anything is better than large scale floor ripping!

@dr_dongle Living as we do on a hill, one side of our property has a deeper void than nearer the party wall. I think it is probably 400-500 mm. near the party wall and a full metre on the side where they created a trap. In our instance, the chaps were eager to donn a ‘spacesuit’ and go intrepidly down the ‘ole and carry out the spraying ‘mandraulically’ so the robot was able to have a rest. We were shown the robot buggy complete with caterpillar tracks and very powerful traction to cope with builder’s err … indiscretions etc. and we were provided with before and after photos too. We also have a ‘sustificate’ for the work should we ever need to justify the quality of the work to anyone. Regards, Toodles.

Posted by: @toodles

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@dr_dongle If you wish to consider underfloor insulation, Q-Bot can use a ‘robot’ to spray under the floor with just 200 mm of clearance ( https://q-bot.co). Not cheap but we had ours done about 3 years back and have found it beneficial. They can gain access through a small hatch or create one for you if required and they are very tidy workers. They created an access trap in our understairs cupboard and left everything very tidy afterwards. Regards, Toodles.

I was interested after reading this but they can only do this with wooden floor boards if you have chipboard its not suitable.

@irmartini Oh! That’s a great shame.😳 Toodles.

Good Morning! Just wanted to jump on and introduce myself. I'm Bec, and I work for a UK-based company called Fogstar. I'm interested in emerging strategies to make better use of renewable energy sources - battery storage in particular.
I live in the West Midlands region, for which NGED is the DNO. Always happy to answer questions on battery storage or battery systems integration, I have quite a bit of experience in this area.

@fse_bec welcome to the forums, and it’s very generous of you to offer your expertise and experience. There are quite a number of Fogstar users on these forums already.

Good morning everyone, I’m really pleased to have discovered renewableheatinghub and have already bought a copy of the Bodge Buster guide 🙂 I’m in the process of obtaining quotes to replace our old gas boiler and cylinder system with an ASHP. The house is a 1965, 4 bed detached Laing house of which there must be millions across the country. We have decent loft insulation, double glazing but ageing cavity wall insulation, some of which has sunk. As was the style in the 1960’s, a large area of the external walls is decorated with hung tiles with no cavity behind them.

I’m really conscious that the design and installation is absolutely critical - I’ve read so many horror stories and really want a positive installation to inspire others locally to make the switch.  I have Heat Geeks down as a possible company but wondered if it’s acceptable to ask for recommendations on here for others? We’re located in Wokingham, Berkshire, near Reading and Bracknell. Many thanks! 

@tallmarc welcome to the forums and thank you for purchasing a copy of Bodge Buster.

Please feel free to start a dedicated post about your home where you can share photos and get some advice. Design and installation are the biggest hurdles. As you mentioned, checking out Heat Geek is a good idea. I had a meeting with Heat Geek last week, and their guarantee proposition is very encouraging for homeowners, offering better protection than anything MCS can provide.

Here’s the link: https://upgrades.heatgeek.com/c/rhh