O'Neill Construction Services LTD

O'Neill Construction Services LTD Structural groundworks, foundations & drainage specialist. Structural groundworks, deep trench foundations & drainage for extensions and self-build projects.

Reliable, compliant and built to spec. [email protected]

I do know that as a business i will never be the cheapest option, I do get turned down very often! But heres why, we lea...
15/05/2026

I do know that as a business i will never be the cheapest option, I do get turned down very often! But heres why, we leave a finish, even a job like concrete pads deserves a bit of love because if Its done by me you will be looking at it for a long long time built to last always. Look forward to this clients future plans

Thanks to Concrete Man for the concrete perfect to work with as always

A slab is only as strong as what’s underneath. Proper compaction, sub-base, and level preparation are critical. Oversigh...
26/02/2026

A slab is only as strong as what’s underneath. Proper compaction, sub-base, and level preparation are critical. Oversights here lead to cracks, uneven floors, and costly issues.
I specialise in structural groundwork, oversites, and drainage for extensions and self-builds — minimising risk and delivering quality.

Structural groundwork starts on paper. Reading the engineer’s drawings correctly is critical: trench depth, footing widt...
25/02/2026

Structural groundwork starts on paper. Reading the engineer’s drawings correctly is critical: trench depth, footing width, steel placement, and drainage fall all have to match the spec.
Mistakes here lead to settlement, water issues, or failed inspections — costly delays for builders and homeowners.
I specialise in turning drawings into compliant, reliable groundwork packages for extensions and self-build projects.

Drainage installation is technical — fall, pipe size, inspection points, and testing all matter. Covering mistakes leads...
24/02/2026

Drainage installation is technical — fall, pipe size, inspection points, and testing all matter. Covering mistakes leads to expensive repairs.
I provide full structural drainage packages for extensions and renovations, ensuring inspection-ready, compliant installations every time.

Planning a self-build or extension?Structural groundwork is critical — footings, drainage, and slab prep must be done to...
23/02/2026

Planning a self-build or extension?
Structural groundwork is critical — footings, drainage, and slab prep must be done to engineer specifications to prevent settlement, water issues, and failed inspections.

Over the past 6 years as a business, I’ve delivered compliant structural groundwork packages for builders and self-build projects — reliable, inspection-ready, and done right the first time.

I provide full packages for footings, oversites, and drainage, so you can focus on your build with confidence. DM for a quote or discussion from your drawings.

Structural groundwork is more than digging a hole. Foundations must be built to engineer’s drawings, compacted correctly...
23/02/2026

Structural groundwork is more than digging a hole. Foundations must be built to engineer’s drawings, compacted correctly, and inspected before concrete pour. Proper prep prevents settlement, water issues, and costly mistakes later.
I specialise in foundations, drainage, and structural groundwork for extensions and self-builds — reliable, compliant, and done right.

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Swindon

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