Hi,
First time posting here looking for advice, and hopefully to learn something.
After 10 years in our 1930s house we are finally planning to tackle the 1960s retaining brick wall in our steeply-sloped garden before laying patio.
Our plot is carved into a valley; we have a small area of patio behind the house with a very steep slope held in place by the wall. It's showing cracks / spalling, plus the previous owner decided to paint it so every couple of years we have to scrape off the flaking paint and apply another tin of Sandtex. Being in a valley, with lots of big trees nearby, the area is damp in winter. We intend to replace the biggest section, 10m wide and average 1m high. Other sections aren't in such bad shape so we've just had the top courses of bricks replaced.
The question is, what would you do if this was yours? We want the job done properly and look good but have had different - sometimes contradictory - opinons from the four builders who have looked at it so far.
After discounting a few non-starters we are left with:
1. Rip out old wall, replace with blocks with a facing brick layer in front for aesthetics.
2. Rip out old wall, replace with blocks to be rendered and painted.
Option 1 seems straightforward, essentially 'like for like' but with added strength and the luxury of not having to paint it. It just might look a bit odd against the other - painted - sections of wall, although over time we could replace them too.
Option 2 was suggested by a landscaping company and is our preference. We think it would look great as we could render the other (old) areas of wall for a matching finish. However, on Sunday I had a builder tell me rendering was a bad idea as the render will deteriorate and need repainting every year. Yet another builder flatly denied this today and told me it would be fine. If we go with this, I want to be very sure it is durable and to be specific about what we need in terms of drainage, type of render etc etc. And if it's the wrong solution, fair enough, we'll cross it off.
Any thoughts welcome to help avoid a situation where I spend a lot of £ and then regret my decision!