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  • Posts: 20
Brick Cleaning
« on: November 16, 2018, 04:05:35 pm »
Hi,
Got a customer with a lovely victorian house. I clean her windows and pressure wash her drive regularly, she has asked if I could clean her walls using my pressure washer which is a Honda GX390.  I have done a test patch and it does come up well but I feel that this PW is not the best machine to use for this job. Just seems to be a bit harsh if you know what I mean.
What do you guys use? Was thinking of hiring a Doff or Thermatech but fear that it would take weeks to complete?

chris scott

  • Posts: 3392
Re: Brick Cleaning
« Reply #1 on: November 16, 2018, 04:26:24 pm »
Do you have a picture of the house?
www.cleaning-service.uk.com
www.render-cleaning.co
https://www.cleaning-service.uk.com/bromoco-systems/
Exterior cleaning specialists covering Merseyside,Lancashire and Cheshire. TEL 08000 933267

chris scott

  • Posts: 3392
Re: Brick Cleaning
« Reply #2 on: November 16, 2018, 06:08:15 pm »
Hydrofluoric acid . Not too strong else you will burn the brick.
www.cleaning-service.uk.com
www.render-cleaning.co
https://www.cleaning-service.uk.com/bromoco-systems/
Exterior cleaning specialists covering Merseyside,Lancashire and Cheshire. TEL 08000 933267

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  • Posts: 20
Re: Brick Cleaning
« Reply #3 on: November 16, 2018, 08:53:28 pm »
Mmmmmm....just googled it. Sounds like scary stuff! :-) Is this different to ordinary brick acid?

chris scott

  • Posts: 3392
Re: Brick Cleaning
« Reply #4 on: November 16, 2018, 10:47:53 pm »
Two different acids

Hydrofluoric acid    (The one you need for that job)   You should also buy calcium gluconate cream.

Hydrochloric acid    (Brick acid)
www.cleaning-service.uk.com
www.render-cleaning.co
https://www.cleaning-service.uk.com/bromoco-systems/
Exterior cleaning specialists covering Merseyside,Lancashire and Cheshire. TEL 08000 933267

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  • Posts: 20
Re: Brick Cleaning
« Reply #5 on: November 17, 2018, 05:36:56 am »
Hello Chris,
Thanks for the info. I think it's beyond my remit at the moment. Just out of interest what would you charge just to clean the front facade?

Smudger

  • Posts: 8436
Re: Brick Cleaning
« Reply #6 on: November 17, 2018, 10:59:08 pm »
Picture would be good

Are they Suffolk yellows? Or  a red  brick ?

Is it organic matter your removing or  black carbon from traffic ?

Hot is defo required but if you have a pic I can give you some idea of what you need

Darran
A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.

www.oddbodscleaning.co.uk

Smudger

  • Posts: 8436
Re: Brick Cleaning
« Reply #7 on: November 19, 2018, 09:03:42 pm »
Nice house

I suggest you hire yourself a hot pressure washer one that can get to 120 degrees - use a 15 degree nozzle - this will clean the majority of the red brick no problem at all.  for the darker areas and the sandstone with carborization I use Tensid heavy duty restoration chemical use as directed then steam and you'll have lovely brickwork.

I can't find my before and afters of some of our more challenging work but below is a oiccy of ivy removal just using steam

use this technique and you won't damage the bricks or mortar

A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.

www.oddbodscleaning.co.uk

Splash & dash

  • Posts: 990
Re: Brick Cleaning
« Reply #8 on: November 19, 2018, 09:19:08 pm »
Nice house

I suggest you hire yourself a hot pressure washer one that can get to 120 degrees - use a 15 degree nozzle - this will clean the majority of the red brick no problem at all.  for the darker areas and the sandstone with carborization I use Tensid heavy duty restoration chemical use as directed then steam and you'll have lovely brickwork.

I can't find my before and afters of some of our more challenging work but below is a oiccy of ivy removal just using steam

use this technique and you won't damage the bricks or mortar








Nice job looks very good customer must be delighted with that ,out of intrest how long did it take ?

Smudger

  • Posts: 8436
Re: Brick Cleaning
« Reply #9 on: November 20, 2018, 09:09:19 am »
Over the moon with it

we had a landscape company cut it down ( I hate doing that part of the job ) as it was very thick

the actual cleaning as you see it there was 5 hours for a single man - we used a small spider lift for the job - the ivy was also around the corner top to bottom for about 6 feet

Darran
A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.

www.oddbodscleaning.co.uk

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  • Posts: 20
Re: Brick Cleaning
« Reply #10 on: November 20, 2018, 02:23:03 pm »
Hello Darren,
Thanks for the advice. It sounds a lot safer than using the chemicals mentioned earlier in this thread. Great job on removing the Ivy. Looks fantastic.

Smudger

  • Posts: 8436
Re: Brick Cleaning
« Reply #11 on: November 20, 2018, 03:42:06 pm »
no worries

email me if you have any questions

Darran
A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.

www.oddbodscleaning.co.uk

Yada Yada Yada

  • Posts: 142
Re: Brick Cleaning New
« Reply #12 on: January 11, 2019, 03:36:06 pm »
I know this is an old thread but just to point out that Hydrofluoric Acid should not be used by anyone other than a competent operator.

My opinion - to suggest, on a public forum that someone asking the question what to use and it is suggested to use HF is completely wrong.

This stuff penetrates the skin and then 'eats' the calcium in bones. You may have no obvious skin break and no obvious external issues.

It doesn't stop when it hits bone it carries on munching away till the limb affected is useless.

As 'experienced operators' giving 'advice' to relative newbies we have a duty to not offer 'stupid and dangerous' opinion.

Amended - It also causes some of the nastiest skin burns I've ever seen.

http://www.emdocs.net/hydrofluoric-acid-burn-keeps-burning/

This stuff can kill you and is far worse than any other acid that could be used.


Yada Yada Yada

  • Posts: 142
Re: Brick Cleaning
« Reply #13 on: January 11, 2019, 03:42:47 pm »
More -

https://en.wikipedia.org/wiki/Hydrofluoric_acid

Christopher - think before you advise!!