Discuss Tips from a pro..... in the Electrical Forum area at ElectriciansForums.net

littlespark

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Sometimes you need to work in an old house, and there’s a number of threads on here about how to, say, fit downlights in a lathe ceiling.....

Here’s a start... on lathe and plaster walls without making a huge mess....

Mark where you want the socket to go. Height wise, measure an existing one from either the floor or the top of the skirting.
244132B3-C0A2-43F2-B6D0-41E6299F78A8.jpeg

Next, use a pad saw to find a gap between the lathes. Hit and miss jabbing with the saw until it breaks through.
000F67B4-FD5B-4D99-A618-53BD3FCFC593.jpeg

I will be using a regular dry lining box, so you don’t want to be too close to a vertical joist. Use the pad saw to feel to the left and right. If you can feel a joist, just adjust your planned position.

810E0380-C348-480C-BE14-18684CF45E5F.jpeg

Once you have the final position, you can draw around a regular metal back box to give your cutout size.

30041AE4-3623-4FC5-9C6A-BD90F6C544B0.jpeg

Using a multi tool on a fairly slow speed, you can chip away at the plaster, but not the lathe quite yet.
yet.

6F575B83-56CC-45A5-B3C4-450DA7A3BA0C.jpeg

Now, with the multi tool on a high speed and a fine toothed wood blade, you can cut neatly through the lathe without much problem. A small wood screw screwed into the middle of the lathe and held tight in pliers will help as the lathe will want to push into the hollow wall.
0767A9C8-44E8-4BA4-B331-0BDF05A98A03.jpeg

Now for the biggest tip I can give. Very very important whenever you are doing anything like this;



Always remember to charge your phone fully, or it will die when you’re in the middle of trying to make a hints and tips thread😆🤪🥺
 

Lister1987

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Sometimes you need to work in an old house, and there’s a number of threads on here about how to, say, fit downlights in a lathe ceiling.....

Here’s a start... on lathe and plaster walls without making a huge mess....

Mark where you want the socket to go. Height wise, measure an existing one from either the floor or the top of the skirting.
View attachment 86407

Next, use a pad saw to find a gap between the lathes. Hit and miss jabbing with the saw until it breaks through.
View attachment 86408

I will be using a regular dry lining box, so you don’t want to be too close to a vertical joist. Use the pad saw to feel to the left and right. If you can feel a joist, just adjust your planned position.

View attachment 86409

Once you have the final position, you can draw around a regular metal back box to give your cutout size.

View attachment 86410

Using a multi tool on a fairly slow speed, you can chip away at the plaster, but not the lathe quite yet.
yet.

View attachment 86411

Now, with the multi tool on a high speed and a fine toothed wood blade, you can cut neatly through the lathe without much problem. A small wood screw screwed into the middle of the lathe and held tight in pliers will help as the lathe will want to push into the hollow wall.
View attachment 86412

Now for the biggest tip I can give. Very very important whenever you are doing anything like this;



Always remember to charge your phone fully, or it will die when you’re in the middle of trying to make a hints and tips thread😆🤪🥺
M12 CMT? If it is a 12v, do you rate it? I know 18v will have more punch but I've got a bucket load of M12 batteries, thinking just basic jobs like drywall, breaking the tongue between floorboards etc
 

littlespark

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M12 CMT? If it is a 12v, do you rate it? I know 18v will have more punch but I've got a bucket load of M12 batteries, thinking just basic jobs like drywall, breaking the tongue between floorboards etc
The multi tool? M12 Free gift from Howdens for opening an account.

Good enough for what I need it for
 

Dave OCD

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Sometimes you come across very thick old plaster and can fit a metal box flush directly on the laths, can be a little bit bouncy though and you need to be careful not to split the laths.
 

Dave OCD

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Yes I've done that as well HHD, although the majority these days seem to just whack a surface box straight above the skirting. 😀
 

telectrix

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another tip. totally unrelated but...... when you remove a redundant accessory, before binning it, save the terminal screws ( aslong as undamaged). the number of times i've taken ,say, a new cooker switch out of the van stock to find that 1 or 2 screws have worked loose in transit and disappeared for ever is ridiculous.
 

nicebutdim

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Don't you keep a range of screws for accessories? Old houses were supplied screws need to be replaced with anything from 30mm - 75mm...
 

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