Should You Get a Drain Survey Before Buying?

Should you get a drain survey before buying a property? In most cases, yes — especially if the property is over 30 years old, has large trees nearby, or has had extensions built. The cost of a survey (£150–£400) is trivial compared to the potential repair bills it can uncover. Here's when it's essential and when you might be able to skip it.

What to Look For

• Always recommended for properties built before 1980
• Essential if mature trees are growing near the property
• Critical if previous extensions or alterations have been made
• Important if the property has a history of drainage complaints
• Strongly advised if the property is in an area with clay soil
• Less critical for brand-new properties with NHBC warranty (but still useful)

How We Diagnose the Problem

A pre-purchase drain survey costs between £150 and £400 — a fraction of the cost of even a minor drain repair. It takes 1–2 hours and provides complete visibility of the underground drainage condition that no other pre-purchase check can give you.

How We Fix It

If the survey finds problems, you have leverage to negotiate. Many buyers recoup the survey cost many times over through price negotiations based on our findings. If the drains are clear, you buy with confidence knowing there are no hidden surprises underground.