5 Questions to Ask a Plumber Before Hiring Them
- Martin Schlaffer

- Oct 7, 2025
- 3 min read
Anyone who needs drain cleaning wants one thing above all else: fast and professional help. Unfortunately, especially when it comes to emergency services, there are often unscrupulous providers who advertise with enticing offers but end up charging significantly higher bills. By asking the right questions, you can determine whether you’re dealing with a reputable professional company before you hire them.
In this article, you’ll learn the five questions you should definitely ask a drain cleaning service.
✅ If you need help quickly, you can find all the information about our Berlin drain cleaning emergency services on our AAA-Abfluss homepage.

1. What is the total cost of drain cleaning?
First things first: What costs can I expect?
A reputable company will give you a realistic price—or at least a transparent price range—right over the phone.
Also be sure to ask about:
Travel expenses
Surcharges for night, weekend, or holiday service calls
Material costs
Possible additional costs
2. Will I incur any additional costs?
Some companies advertise very low starting prices. Once on-site, however, costs for special tools, machinery, or supposedly necessary additional work are suddenly added.
So be sure to ask directly:
Are all costs already included?
When do additional costs arise?
Will these be discussed with me beforehand?
A reputable drain cleaner will not begin any additional work without informing you first.
3. How is the clog cleared?
A professional service provider will be happy to explain which method will be used.
Depending on the cause, the following methods may be used, for example:
Pipe auger
High-pressure flushing
Camera inspection
Milling technique
If the process is explained to you clearly, it demonstrates experience and transparency.
4. Will I receive a proper invoice?
A complete invoice is not only important for your records, but may also be required by insurance companies or landlords.
Make sure the invoice includes, among other things:
Company name
Address
Tax ID number
List of services
Total price
Unscrupulous providers sometimes try to demand payment exclusively in cash without providing a verifiable invoice.
5. Who will actually be coming to my home?
Feel free to ask who will be carrying out the job. Will it be one of their own employees, or will the job be subcontracted to another company? A regional specialty company with dedicated points of contact usually ensures greater transparency and better availability.
Other Red Flags
In addition to asking the right questions, there are a few signs that should make you wary:
Extremely low “bait” offers
No specific price given over the phone
Pressure to sign immediately
No company address on the website
No proper invoice
When in doubt, trust your gut. A reputable company will answer your questions in a friendly and clear manner.
Conclusion
With just a few targeted questions, you can often identify unreliable providers before hiring them. A professional drain cleaner will provide transparent information about prices, their work process, and any potential additional costs. This way, you’ll know exactly where you stand from the start and avoid unpleasant surprises.
Especially in an emergency, it’s worth taking a moment to ask a few questions. This often saves you not only money but also a lot of hassle.
Do you need an appointment? Then please make an appointment directly!
✅ You can find more information about our services in our service area.
✅ Would you like to find out more about me and my work? Then take a look here!
Do you need help? Please feel free to contact us at any time on +49 (0) 1577 499 54 47
or send an e-mail to service@aaaabfluss.de. Your pipe cleaning Berlin AAA-Abfluss will be happy to help you!
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