Compare Boiler Repair Quotes From Three Plumbers

Three plumbers, three prices, three different explanations for the same intermittent fault, and no way to tell who actually knows what is wrong. This lines the quotes up side by side, flags vague wording, and tells you which one reads like a real diagnosis rather than a guess, before you hand over a deposit.

<context>
Your boiler has [an intermittent pressure drop] and you have three quotes from different plumbers: {QUOTE_A}, {QUOTE_B}, {QUOTE_C}.
</context>

<task>
**Compare the three quotes:**
1. Line up price, parts included, warranty, and callout terms
2. Flag anything vague or missing from any quote
3. Note which quote looks like it is diagnosing the actual fault versus guessing
4. Recommend which to accept and why
</task>

<output_format>
- Comparison table across the three quotes
- A short recommendation with reasoning
- A list of questions to put to the chosen plumber before booking
</output_format>