Structural Alterations & Steelwork Installation (RSJs) in Bexley & Kent
Safe, Compliant Structural Work Carried Out by Experienced Professionals
Structural alterations are one of the most important — and sensitive — parts of any building project. Whether you’re removing a load-bearing wall, creating a larger opening, or installing steel beams to support an extension or loft conversion, the work must be carried out correctly, safely, and in full compliance with building regulations.
At P J Dunbar Builders Ltd, we provide professional structural alteration and RSJ installation services across Bexley, Bexleyheath, Sidcup, Dartford, Eltham, Welling, Orpington, and the wider Kent area. With over 30 years of experience, our team carries out structural work with precision, care, and a strong focus on safety — ensuring your home or building remains structurally sound at every stage.
Whether structural work forms part of a larger project or is required as a standalone service, we deliver reliable solutions you can trust.
Structural Alterations & Steelwork Services
Structural work requires careful planning, accurate calculations, and skilled installation. We manage the process properly from assessment through to final sign-off.
Benefits of Using an Experienced Structural Contractor
A loft conversion can do far more than just add another room. Done properly, it can transform how your home feels and functions – and make a meaningful difference to your long-term plans.
With demand for property strong across Bexley and Kent, a professionally built loft conversion is one of the most reliable ways to increase both living space and resale value.
Safety Comes First
Structural work affects the stability of your property. Our experience ensures work is carried out safely at every stage.
Full Compliance with Building Regulations
All work is completed in line with current regulations and inspected where required for approval.
Cleaner, More Flexible Living Spaces
Structural alterations allow you to reconfigure layouts, remove walls, and create modern open-plan spaces.
Confidence in Long-Term Structural Integrity
Properly installed steelwork ensures your home remains strong, stable, and future-proof.
Planning Structural Alterations or Steelwork?
If you’re considering removing walls or installing steel beams and want clear, professional advice, we’re always happy to help.
Our Structural Alterations Process
With over 30 years of experience, we follow a structured, safety-focused process for structural alterations and steelwork installation.
From assessment and planning through to final completion, our approach prioritises compliance, clear communication, and precise workmanship — ensuring structural work is carried out correctly and with complete confidence.
Initial Consultation & Structural Discussion
We begin by understanding what changes you want to make and how they affect the structure of the building.
Site Survey & Assessment
We assess the existing structure, load paths, and access requirements to ensure the work is feasible and safe.
Structural Engineer Coordination
We work alongside qualified structural engineers to ensure correct calculations, specifications, and compliance.
Pre-Installation Planning & Temporary Support
Before steel installation, temporary supports are installed to maintain full structural stability.
Steel Installation & Structural Works
Our skilled team installs RSJs and completes alterations with care, accuracy, and attention to detail.
Building Control Sign-Off & Final Checks
We ensure work is inspected where required and completed to the correct standard.
Trusted Local Builders With Over 30 Years of Experience
Since 1994, P J Dunbar Builders Ltd has been carrying out loft conversions across Bexley, Kent, and South East London. Our reputation has been built on doing things properly – using experienced tradespeople, respecting our customers’ homes, and delivering conversions that look great, feel solid, and stand the test of time.
Most of our work comes from personal recommendation. Homeowners choose us because they know we’ll turn up when we say we will, keep them informed, and treat their project with the same care and attention we would our own homes.
Over 30 Years of Structural Building Experience
Since 1994, we’ve safely carried out structural works across hundreds of properties.
Safety-Led, Professional Approach
We never rush structural work — safety and correctness always come first.
Skilled, Long-Standing Team
From initial design to final construction, we manage every stage in-house to keep your project organised, efficient and stress-free.
Transparent & Honest Pricing
We explain what’s required, why it’s needed, and what it will cost — clearly and transparently.
Trusted by Homeowners Across Bexley & Kent
For over 30 years, we’ve built our reputation on quality, reliability, and customer satisfaction. Here’s what our clients have to say about working with us.
Recent Structural Alteration Projects
We’ve completed a wide range of structural alterations across Bexley, Dartford, Sidcup, and surrounding areas — including wall removals, steel installations, and layout transformations.
Structural Alterations & RSJ FAQs
Yes. Structural calculations are required for steelwork. We coordinate with engineers to ensure everything is compliant.
In many cases, yes. We plan work carefully to maintain safety and minimise disruption.
Yes. You don’t need a full renovation — we regularly carry out standalone structural alterations.
Yes. Structural alterations must be approved. We manage the process and inspections where required.
Most installations are completed within a few days, depending on complexity and access.
Still have questions?
If you didn’t find what you were looking for, our team is happy to help.
Get in touch today for friendly, no-obligation advice about your extension, renovation, or new-build project in Bexley or Kent.
Ready to Carry Out Structural Alterations Safely and Professionally?
If you’re planning structural changes or steelwork installation, we’d be happy to help. With over 30 years of experience, we deliver safe, compliant structural solutions you can rely on.