Civil Engineering In Helston

Groundworks Experts

Civil engineering contractor in Cornwall. Retaining walls, structural steelwork, drainage, and roadworks

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12 Years' Experience

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RW Groundworks

What Is Civil Engineering?

When a project goes beyond standard groundworks — retaining walls holding back hillsides, structural steelwork for commercial builds, drainage systems serving entire housing developments — that is civil engineering. RW Groundworks delivers civil engineering across Cornwall with the plant, the qualifications, and the on-site experience to handle complex structural work safely and on programme.

Reuben Williams started in the construction industry 12 years ago as a skilled labourer, worked up to site supervisor running full sites, and now runs RW Groundworks with the equipment and team to take on civil engineering projects of real scale. We are currently running groundworks packages on 11 houses for 2 clients — the kind of work that demands civil engineering capability at every stage.

RW Groundworks

What Civil Engineering Covers?

Civil engineering is the structural and infrastructure side of construction. Where groundworks deals with excavation, foundations, and drainage for individual properties, civil engineering covers the larger-scale structural elements that require design input and engineering calculations.

Our civil engineering services include:

Retaining walls — reinforced concrete, gabion baskets, block-and-beam, and masonry retaining structures for slopes, embankments, and boundary changes

Structural steelwork — RSJ installation, steel frame erection, and structural connections for commercial and residential builds

Deep drainage systems — foul and storm water drainage for multi-unit developments, including treatment plants and pump stations

Road and infrastructure works — kerbing, footpaths, road construction, and service ducting for housing developments

Block work and masonry — structural block walls, boundary walls, and below-ground masonry for foundations and retaining structures

Reinforced concrete — ground beams, pile caps, raft foundations, and in-situ concrete structures

RW Groundworks

Civil Engineering Contractor Near You

Finding a civil engineering contractor near you who has both the plant and the people to deliver is not straightforward in Cornwall. Civil engineering work is sometimes subcontracted to the heavy machinery or bring in specialist labour for structural work. RW Groundworks owns its own fleet — a 14T Doosan excavator, 3.3T Hitachi, 7T dumper, Bomag rollers, and hydraulic breakers — so we are not waiting on hire companies or paying markup that gets passed on to you.

Our team includes CSCS-carded operatives, SSSTS-qualified supervisors, and highway operatives. Everyone on site holds the right tickets for the work they are doing.

RW Groundworks

How Civil Engineering and Groundworks Work Together

On most construction projects, civil engineering and groundworks overlap. You cannot build a retaining wall without excavating the ground first. You cannot install a drainage system without trenching and backfilling. The advantage of hiring one contractor for both is simple: fewer handoffs, fewer delays, and one team responsible for the whole scope.

When RW Groundworks takes on a civil engineering package, we handle:

Site setup and excavation — clearing, stripping topsoil, bulk dig to formation levels

Structural works — retaining walls, steelwork, reinforced concrete to engineer's drawings

Drainage and services — pipe runs, manholes, connections, and testing

Backfill and reinstatement — compacted fill in layers, surface reinstatement, landscaping preparation

This start-to-finish approach means one point of contact, one programme, and no finger-pointing between trades.

Our Fleet

We Own Every Machine On Site.

Civil engineering work demands serious machinery. We bring our own to every job — no hire companies, no waiting, no half-day charges for machines sitting idle.

Owning the plant means we control the programme. The kit arrives with us and stays until the job is done.

14T Doosan Excavator

Bulk excavation, deep trenching, heavy lifting

3.3T Hitachi Excavator

Tight access work, precision digging, service trenches

7T Dumper

Material movement on site

120 Bomag Roller

Compaction for roads, hardstandings, trench backfill

80 Bomag Roller

Smaller area compaction

RTSC3 Remote Rammax

Confined space compaction

Hydraulic Breakers

Concrete and rock breaking

What we do

Our Groundworks Services

From initial concept to final construction, we provide comprehensive architectural
services tailored to your unique needs.

Foundations & Footings

Strip foundations, trench fill, and raft foundations for new builds, extensions, and garden walls. RW Groundworks excavates to the required depth, installs formwork where needed, and pours concrete to Building Control specifications. Every foundation is checked against your structural engineer's drawings before concrete goes in.

Excavation & Earthworks

Site excavation for basements, swimming pools, ponds, and level changes. Bulk earthworks for landscaping, road construction, and development plots. With a 14-tonne excavator and 7-tonne dumper on the fleet, RW Groundworks moves serious volumes of earth efficiently — even on Cornwall's steep and uneven terrain.

Site Clearance

Vegetation clearance, demolition of existing structures, removal of old foundations, and stripping of topsoil ready for construction. RW Groundworks handles site clearance as a standalone service or as the first phase of a larger groundworks package. Two tipper trucks in the fleet mean waste gets shifted off-site quickly.

Drainage Installation

Foul drainage, storm drainage, soakaways, and treatment tanks. RW Groundworks installs drainage systems to current Building Regulations, including connections to mains sewers and installation of septic tanks for rural Cornwall properties that sit off the mains network. Deep drainage runs are handled in-house with no need for subcontractors.

Concreting & Slab Work

Oversite concrete, garage bases, shed bases, and floor slabs. Poured and finished to level by experienced concreters. See our concreting page for more detail on standalone concreting projects.

Retaining Walls & Structural Work

Block work retaining walls, gabion baskets, and reinforced concrete retaining structures for sloped sites. Essential on many Cornwall properties where natural ground levels vary significantly across the plot.

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TESTIMONIALS

What Our Civil Engineering Customers Say About Us

★ ★ ★ ★ ★

Reuben and his team replaced our old concrete driveway with block paving. From the quote to the finished job it was about two weeks — and most of that was waiting for materials. The actual groundwork and laying took four days. They dug out the old drive, sorted the drainage that had been pooling for years, put in a proper sub-base and the finished result is spot on. Reuben was on site every day and nothing was left for us to chase up. Would recommend to anyone in the Helston area.

Mark T. Helston

Domestic Driveway

★ ★ ★ ★ ★

We've used RW Groundworks on three separate housing plots now and they deliver every time. They bring their own plant so there's no messing about waiting for hire companies — the 14-tonner and dumper turn up with the crew on day one. Reuben understands programme and that matters when you've got other trades following on behind. Foundations, drainage, road construction — all done to spec and on time. Reliable contractor, fair pricing, no surprises.

D. Collins, Collins Developments, Truro

Housing Development (Commercial)

★ ★ ★ ★ ★

Had a full garden renovation done — old raised beds ripped out, retaining wall rebuilt, new patio laid with Indian sandstone and artificial grass for the kids. They got the mini digger through our side gate with about two inches to spare. Reuben priced it fairly and the lads were tidy, which matters when they're working next to your house for a week. The patio has been through one Cornish winter already and hasn't moved. Really pleased with it.

Sarah & James P. Falmouth

Landscaping / Garden Project

The Process

3 Step Process For Your Civil Engineering Needs

Contact Us

Start by completing the 'Get a Free Quote' form on our website to share your Civil Engineering needs with us.

Schedule Your Estimate

Next, we'll arrange a property visit at a time that works for you to provide an in-person estimate for your Civil Engineering needs.

Get The Job Done

After you approve our estimate, we'll schedule a date to complete the job. Our team will work hard to exceed your expectations!

F.A.Q

Civil Engineering Frequently Asked

Questions

Here are answers to common questions about our Civil Engineering services.

What is the difference between groundworks and civil engineering?

Groundworks covers excavation, foundations, and basic drainage for individual buildings. Civil engineering covers larger structural and infrastructure work — retaining walls, road construction, deep drainage systems, structural steelwork, and reinforced concrete. In practice, the two overlap on most construction sites. RW Groundworks handles both under one contract, which simplifies project management and reduces costs.

How much does a retaining wall cost?

Retaining wall costs vary significantly depending on height, length, ground conditions, and wall type. A simple 1m-high block retaining wall might cost £150-£300 per linear metre. Reinforced concrete walls over 2m high can cost £500-£1,000+ per linear metre including design fees. We provide detailed quotes after assessing the site and reviewing any engineer's drawings.

Do I need planning permission for civil engineering work?

It depends on the scope. Retaining walls over 1m high adjacent to a highway, or over 2m high elsewhere, typically need planning permission. New drainage connections to public sewers need approval from South West Water. Road construction and highway works require Section 278 or Section 38 agreements. We advise on the permissions needed during the quoting stage.

Are there height limits for retaining walls?

Retaining walls over 1.2m high generally need structural engineer involvement to confirm the design. Walls over 2m high need planning permission in most cases. Near highways, the threshold drops to 1m. In Cornwall, ground conditions (particularly clay and mining-affected land) can affect what is structurally feasible. We work with structural engineers to ensure every wall is designed for the actual site conditions.

Do retaining walls need building regulations?

Retaining walls are not specifically covered by building regulations in the way houses are. However, any retaining wall that supports a building, forms part of a boundary near a highway, or exceeds 2m in height should have structural engineer involvement. Building control may want to inspect retaining walls that affect the structural integrity of adjacent buildings. We coordinate with building control and engineers as part of the project.