Services/Enabling Works & Structural Alterations

Enabling Works & Structural Alterations

Site preparation and structural modifications to facilitate new construction or major refurbishment projects. We create the foundation for successful development.

What We Do

PCL Limited provides comprehensive enabling works and structural alterations that prepare sites for major construction and refurbishment projects. Our services bridge the gap between existing conditions and new development, removing constraints and creating opportunities.

We specialise in complex structural alterations including load-bearing wall removal, floor openings, facade retention, and temporary support systems. Our engineers work closely with design teams to deliver solutions that meet structural, programmatic, and budgetary requirements.

Our work encompasses utility diversions, ground preparation, site clearance, structural modifications, and all necessary preliminary operations. We coordinate with multiple stakeholders to ensure seamless handover to follow-on contractors.

What this service covers

  • Structural openings, propping & alterations
  • Utility diversions & protection
  • Groundworks, hoarding & site logistics
  • Temporary works design interfaces
Site preparation and structural works

Expert Coordination

We manage interfaces with structural engineers, utility providers, and follow-on contractors to ensure enabling works and structural alterations integrate seamlessly with overall project programmes.

Our Process

A methodical approach to enabling works and structural alterations, ensuring sites are properly prepared for main construction phases.

1

Site Assessment & Planning

Comprehensive site survey identifying existing structures, services, and ground conditions. We develop detailed strategies for enabling works and structural alterations aligned with project timelines.

2

Utility Diversions & Protection

Coordination with utility providers for service diversions, disconnections, and protection. All underground services are identified and safely managed.

3

Structural Alterations

Controlled removal or modification of structural elements. We install temporary supports, create new openings, and strengthen existing structures as required.

4

Site Preparation Works

Ground leveling, excavation, and foundation preparation. We create stable, accessible sites ready for new construction phases.

5

Handover & Documentation

Complete as-built documentation and site handover. We provide full records of all diversions, alterations, and ground conditions encountered.

Scope of works

Comprehensive enabling works and structural alterations tailored to your development requirements:

Site Clearance & Preparation
Structural Alterations
Service Diversions
Temporary Works Design
Ground Works & Excavation
Facade Retention Systems
Party Wall Works
Hoarding & Site Security

Technical Excellence

Our delivery is supported by experienced structural and civil engineers. We provide temporary works design, method statements, and full structural calculations where required.

All structural alterations are conducted under Building Control approval with comprehensive monitoring of adjacent structures. We implement vibration monitoring, crack surveys, and protective measures for neighbouring properties.

Our utility coordination includes liaison with all providers, NRSWA compliance for streetworks, and detailed as-built records of all service diversions and installations.

Frequently asked questions

How enabling works and structural alterations are scoped, handed over, and coordinated with your wider construction programme.

What counts as enabling works and structural alterations?

Typical enabling works and structural alterations include isolations and diversions, hoarding, temporary works, structural openings, ground preparation, and logistics set-up so main construction or refurbishment can start safely and on programme.

How do enabling works and structural alterations interface with the main contractor?

We agree handover criteria, tolerances, and programme slots with your main contractor or client team, then document completions so follow-on trades have a clear baseline.

Can you work to a fixed mobilisation date?

Yes. We build programmes from your gate date backwards, including lead times for design checks, permits, and any early orders, and flag dependencies early if they could affect the date.

Do you carry out utility surveys and isolations?

We coordinate with statutory undertakers and your survey information to plan isolations, supports, and diversions. Field work follows agreed permits and lock-out procedures.

What evidence do we receive at handover?

You receive agreed handover packs: completion records, test certificates where applicable, as-built notes for openings and temporary works removal, and any O&M inputs your contract requires.

Can you install acoustic or dust hoarding while the building remains occupied?

Yes. We design hoarding to your performance brief—including fire rating where required—then install with minimal disruption, agreed delivery slots, and clear sign-off for handover to follow-on packages.

Who leads traffic management and any highway licences?

We split responsibility by contract, but we routinely prepare TMPs, coordinate Chapter 8 signing, and support you with local authority applications where enabling works and structural alterations require road space or abnormal loads.

Can enabling works and structural alterations include asbestos or soft strip ahead of the main shell package?

Often yes. We programme controlled strip-out, waste segregation, and licensed removals where required, then hand over a clean baseline with utilities isolated and penetrations recorded for the principal contractor.

What our clients say

5.0

5.0 from 8 Google reviews

Plus client testimonials below. Not all reviews appear on Google.

Read on Google

Google review

Incredibly professional and would highly recommend!

Brennan Laryea

I have worked with Darren and his team at various points over the last 10 years and have had nothing but excellent service.

Alan

30/04/2026

Dilly Hotel

Refurbishment Works and alterations to the Fire Station at Hatfield. Including changes to room layouts, M&E works to welfare areas, and changes to the Fire Strategy provision

Nick

9/06/2026

Oakray · Hatfield Fire Station

Asbestos removal bedded in the floor screed. Pier were excellent from start to finish if only all trades shared Pier’s ethos

Steve

9/06/2026

Forest gate Construction · Newham Hospital, East and West Ham Works

Removing old plaster and cement from the top of the building, repairing, replacing and treating the front of the building ensuring it’s safe for year to come. Pier Team were polite, friendly, communicative and took the very best care in their work

Howard

15/12/2025

Odeon South Woodford

Quick turn around and very helpful troubleshooting on a project with multiple issues. Very professional with a can-do attitude where nothing was too much trouble

B Stoker

03/10/2025

Cromwell Place, London SW7

An enormous THANK YOU! To everyone involved in particular to Alfonso who answered this phone so early and got his team here by 8.10am. Anytime we have any dealings with HCC asbestos team and Pier, we walk away feeling so very grateful by how kind, supporting and professional you all are.

Claire

18/12/2025

Headteacher · Shepherd Primary School

From start to finish all those involved with PCL were amazing. Concise communications by phone and in person. Contractors arrived on site fully briefed and the task and absolutely no drama at all. All very professional, speedy and went the extra mile.

Lisa

3/12/2025

Building Manager · Quadrant House

The man was fantastic, he was friendly, professional, always included us and communicated well, very good health and safety. We were very happy with his work. He worked often alongside the electricians who were also great help too. I would fully recommend these contractors.

Lisa

24/10/2025

Headteacher · Oughton Primary and Nursery School

Thank you for a prompt response, good workmanship and communication throughout. We are very grateful.

Julian

2/9/2025

Site Manager · Ore Village Primary Academy

Really grateful, have all been supportive, professional and completed works to a high standard!

Richard

16/07/2025

Odeon, Salisbury

Pier Contractors Limited carried out multi-faceted works at two Hertfordshire schools where reinforced autoclaved aerated concrete roof planks has been identified. The works consisted of Identification of RAAC and asbestos containing materials, Asbestos removal and Design of RAAC support structure followed by the works. The project was carried out under intense scrutiny to tight deadlines, Pier worked to a high standard, communicating throughout with the client and the end users. The project was successfully delivered on time and to budget while responding to changes in the specification as the project progressed.

Lucy

19/05/2025

Asbestos Programme Manager · Hertfordshire County Council · Hertfordshire County Council - Schools

Plan Your Enabling Works & Structural Alterations

Get in touch with our technical team to discuss how we can prepare your site for successful development.