تقرير الضرر فيه تقدير التصليح.

A rough Egyptian pronunciation is:

taʔrīr eḍ-ḍarar fīh taʔdīr it-taṣlīḥ

A more learner-friendly version would be something like:

ta-reer ed-darar feeh ta-deer it-tasleeH

A few notes:

• تقرير = taʔrīr = report
• الضرر begins with a sun letter, so ال does not sound like el here; the ḍ / d-emphatic sound gets doubled
• فيه = fīh / feeh
• التصليح also begins with a sun letter (ت), so again the l of ال disappears in pronunciation and the t is doubled

Here فيه means something like in it or it contains.

So the structure is literally close to:

The damage report — in it — the repair estimate.

In natural English, that becomes:

• The damage report contains the repair estimate
• The damage report includes the repair estimate

In Egyptian Arabic, فيه is very often used this way to show that something exists inside something, is included in something, or is available.

Because Arabic often uses a nominal sentence in the present tense, with no separate word for is.

So instead of saying:

• The damage report has a repair estimate

Arabic can simply say:

• تقرير الضرر فيه تقدير التصليح

Literally, it is more like:

• The damage report, in it a repair estimate

This is completely normal Arabic structure. The idea of has / contains / includes is understood from فيه and the context.

تقدير التصليح is an iḍāfa construction, often called a genitive/possessive construction.

It is literally:

• تقدير = estimate / assessment
• التصليح = the repair / the fixing

Together:

• تقدير التصليح = the repair estimate
• more literally, estimate of the repair

This is very common in Arabic. Instead of using a word like of, Arabic often just places the two nouns next to each other.

Other similar examples:

• باب العربية = the door of the car / the car door
• رقم التليفون = the phone number

That is one of the key rules of iḍāfa.

In an iḍāfa:

• the first noun normally does not take الـ
• the second noun can be definite, and that can make the whole phrase definite

So:

• تقدير التصليح

can mean:

• the repair estimate

even though تقدير itself does not have الـ.

This is normal Arabic grammar. In fact, التقدير التصليح would be wrong for this meaning.

Because both words begin with sun letters.

In Arabic, when الـ comes before a sun letter, the l sound is not pronounced, and the next consonant is doubled.

So:

• الضرر is pronounced roughly eḍ-ḍarar
• التصليح is pronounced roughly it-taṣlīḥ

The written form still keeps الـ, but the pronunciation changes.

This happens with many letters, such as:

• ت
• د
• ر
• س
• ش
• ص
• ض
• ط
• ظ
• ن
• ل

So this is not special to this sentence; it is a general reading rule.

It is understandable in Egyptian Arabic, but it sounds fairly formal and somewhat close to Modern Standard Arabic in vocabulary and tone.

That makes sense, because this kind of sentence belongs to contexts like:

• insurance
• car repair
• paperwork
• reports
• official documents

An Egyptian speaker could absolutely say it, especially in a business or administrative context.

In very casual spoken Egyptian, you might also hear something like:

• تقرير الضرر فيه تقدير للتصليح
• في تقرير الضرر تقدير التصليح
• تقرير الضرر فيه تكلفة التصليح depending on the exact meaning

So the sentence is not unnatural; it is just a bit on the formal side.

In Egyptian Arabic, تصليح is a very common everyday word for repair / fixing.

So:

• تصليح العربية = repairing the car
• الموبايل محتاج تصليح = the phone needs repair

إصلاح also exists, but it usually sounds:

• more formal
• more written
• more standard-Arabic-like

So for Egyptian speech, تصليح is often the more natural choice.

Yes, you may hear both, but they are slightly different in feel.

• تقدير التصليح = the repair estimate / estimate of the repair
• تقدير للتصليح = an estimate for the repair

The first one is a compact noun phrase using iḍāfa. The second one uses the preposition لـ and can sound a little more explicit.

In many real-life contexts, both would be understood. The version in your sentence, تقدير التصليح, is concise and very natural in report-style language.