The 6 Groundwork Mistakes That Cost Landowners Thousands

May 31, 2025

๐Ÿ›‘ The 6 Groundwork Mistakes That Cost Landowners Thousands

If you’re about to hire someone for groundwork — STOP.
These are the six mistakes that can turn a simple job into a total disaster.

We see this every week.
Botched sites.
Failed drainage.
Sloppy levels.
And landowners left with massive bills, flooding issues, or worse — irreversible damage.

So, here’s your insider list.
The 6 worst mistakes a contractor can make on your land — and how we make damn sure it never happens under our watch.


โŒ 1. Skipping a Soil Assessment

“Ah it’ll be fine, we’ll just dig it out.”
That’s what the last guy said — and now the land’s subsiding.

Why it matters:
Different soils behave differently. Clay holds water. Sand collapses. Peat? Total nightmare unless you know how to manage it.

What we do instead:
We assess every layer — compaction needs, drainage potential, and load bearing — before the first bucket hits the ground.


โŒ 2. Not Compacting Properly (or At All)

You can’t just run a machine over it and call it compacted.

Improper compaction causes:

  • Cracks in concrete

  • Uneven surfaces

  • Water pooling and erosion

What we do instead:
We calculate compaction pressure based on soil type and use the right equipment to match. It’s civil engineering science — not guesswork.


โŒ 3. Messing Up Levels and Drainage

This is the silent killer. Water always finds the weakness.

Bad drainage = flooded yards, washed-out soil, and damaged buildings.

What we do instead:
We shoot levels before we dig. Every fall, every slope, every drain is calculated for water flow — even in heavy rain.


โŒ 4. Using the Wrong Base Material

Cheapest material doesn’t mean “good enough”.

Crushed brick? Building rubble? That stuff sinks, shifts, and creates a nightmare.

What we do instead:
We spec the right base for the job — whether it’s crushed concrete, MOT Type 1, or engineered fill. Long-lasting, load-bearing, and compliant.


โŒ 5. Leaving No Margin for Movement

Ground moves. Weather hits. Loads change.

If the job is done to the bare minimum — cracks, dips, or total failure are only a matter of time.

What we do instead:
We allow for expansion, movement, and settling. Because nature never plays fair — and neither should your build.


โŒ 6. No Accountability or Evidence

“Trust me, it’s done right.” — Famous last words.

You need evidence. Tracking. Measurements. Photos.

What we do instead:
We document everything. Site photos, drone mapping, before & afters, and full handover packages.


So Here’s the Truth:

Good groundwork isn’t visible.
Bad groundwork always is.

When we’re on-site — we’re building a foundation that lasts.
๐Ÿ‘‰ Book a free site visit so we can walk the land together and spot problems before they cost you.


๐Ÿ”ฅ Bonus: Ask Your Contractor These 3 Questions Before You Hire

  1. How do you determine compaction requirements for this soil type?

  2. What drainage fall are you setting across the site?

  3. Can I see examples of similar jobs you've delivered — with outcomes?

If they stutter — walk away.
If they answer with clarity — you're in good hands.

If they say:

"We'll sort that when we get there..."
...run.


PW Construction
Groundwork. Drainage. Civil Engineering — Done Right.
We don’t do cheap. We do the job right the first time.

Farm Infrastructure & Slurry Compliance Blog | PW Construction

Helping Welsh farmers, landowners, and equestrian clients navigate construction, compliance, and funding in 2024 and beyond.

Our blog delivers practical advice on: Slurry lagoon compliance. Farm drainage and groundwork tips. Infrastructure upgrades that last. Equestrian arena planning. Grant access + planning support

We cut the crap and give you clear, useful insight backed by boots-on-the-ground experience.
Whether you're looking to meet DEFRA regs, upgrade your land, or unlock government funding โ€” this blog helps you move faster, smarter, and with fewer mistakes.

Free info. No pressure. Real value.

PW Construction

๐Ÿ”ง Ready to Get Your Project Moving?

If something in this blog hit home โ€” whether itโ€™s drainage issues, slurry compliance, or just needing a proper fix โ€” donโ€™t leave it sitting on your to-do list.

๐Ÿ“ We offer free site visits across Wales โ€” no pressure, no upsell.
Youโ€™ll get real advice, clear options, and a plan you can actually act on.

๐Ÿ‘‡ Fill in the form below and weโ€™ll be in touch within 24 hours.

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๐Ÿ’ฌ Need to talk it through first? ๐Ÿ“ž Call Dom: 07377 589344 โœ‰๏ธ Email: [email protected]