O'Neill Construction Services LTD

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.

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.

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.

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.

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.

23/08/2025

Standby for the transformation

22/08/2025

20/02/2025

Job complete ✅️ leaning chimney stack took down and rebuilt, doing our best to compliment the characteristics of the building and make it look like it was always there!

04/02/2025

Thanks to Coles scaffolding for keeping us safe while we work at height! Chimney rebuild in progress on Ermin street.

24/01/2025

New Fascias, soffits and guttering for this property in west swindon a UPVC refresh can really bring a property back to life!