האינסטלציה נעשית לפני הטיח.

Because האינסטלציה is a feminine singular noun in Hebrew, and the present-tense form of the verb has to agree with it.

• נעשה = masculine singular
• נעשית = feminine singular

So:

• האינסטלציה נעשית = the plumbing is done / is carried out

נעשית literally means is done, is being done, or gets done.

In this sentence, it means something like:

• The plumbing is done before the plaster
• The plumbing is carried out before the plastering

It is the feminine singular present form of נעשה from the verb לעשות (to do / to make), used here in a passive-like sense.

It functions like a passive here, yes.

Hebrew often uses forms like נעשה / נעשית to express something that gets done or is carried out, even though English might prefer a clear passive such as is done.

So in practice, you can understand:

• האינסטלציה נעשית... = the plumbing is done...

The prefix ה־ means the.

So:

• אינסטלציה = plumbing
• האינסטלציה = the plumbing

In this kind of construction/building sentence, Hebrew often uses the because it is talking about a specific stage of work in a known context, like the plumbing in a particular building project.

For the same reason: הטיח means the plaster or, in context, the plastering/plaster work.

So the sentence is not talking about plumbing and plaster in general, but about the specific stages of work in a project:

• האינסטלציה = the plumbing
• הטיח = the plaster / the plastering

לפני means before.

It is followed directly by the noun phrase:

• לפני הטיח = before the plaster / before the plastering

So the structure is:

• X נעשית לפני Y
• X is done before Y

In Hebrew, הטיח can refer both to:

• the material plaster
• the work/stage of plastering

In a construction context, Hebrew often uses the noun טיח naturally where English may prefer plastering or plaster work.

So depending on context, לפני הטיח may be understood as:

• before the plaster
• before the plastering
• before the plaster work

The sentence follows a very common Hebrew pattern:

• האינסטלציה — subject
• נעשית — verb
• לפני הטיח — time/order phrase

So literally:

• The plumbing
  • is done
    • before the plaster

This word order is natural and neutral in Hebrew.

Yes. A very natural alternative would be:

• האינסטלציה מתבצעת לפני הטיח.

That also means The plumbing is carried out before the plastering.

The difference is mostly stylistic:

• נעשית = is done
• מתבצעת = is carried out / is performed

Both are correct; מתבצעת can sound a little more formal or technical.

A simple pronunciation guide is:

ha-insta-LA-tsya na-a-SEIT lif-NEI ha-TI-aḥ

Notes:

• האינסטלציה = ha-instalatsya
• נעשית = na-asit / na’aseit depending on accent and pronunciation style
• לפני = lifnei
• הטיח = hatiaḥ

The final ח in הטיח is the throaty Hebrew sound, not like English h.

It can do either, depending on context.

Hebrew present tense is often used for:

• something happening now
• a general fact
• a routine or standard procedure

So האינסטלציה נעשית לפני הטיח can mean:

• The plumbing is being done before the plastering
• The plumbing is done before the plastering
• Plumbing comes before plastering

In a construction context, it often sounds like a general rule or standard sequence of work.