RSJ Installation in London - Affordable & Reliable RSJ Fitters

If you’re planning a construction or renovation project that involves altering structural elements, RSJ (Rolled Steel Joist) fitting is a critical service to ensure the strength and stability of your building.

Our RSJ fitting service provides expert installation of steel beams that support loads, allowing for safe structural modifications, such as removing walls, creating open-plan spaces, or supporting new extensions.

RSJ Installation in London - Affordable & Reliable RSJ Fitters
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End-to-End Project Management
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Extensive London Construction Experience
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Customized Construction Plans
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Commitment to Quality
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Innovative Design Solutions
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Sustainability Focus
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07760 499 014
contact@londoncoreconstruction.co.uk

Contact us via phone, email or fill in the form at the bottom of the page for a Free No-Obligation Quote.

RSJ Fitting Services

RSJs, also known as I-beams or H-beams, are vital for supporting heavy loads in various construction projects. Whether you’re opening up a space by removing load-bearing walls, adding new floors, or constructing an extension, properly installed RSJs provide the necessary support to maintain your building’s structural integrity.

This service ensures that loads are evenly distributed, preventing potential structural issues.

Our RSJ Fitting Process

  1. Initial Assessment and Planning: Our service starts with a thorough site assessment to understand your project's structural needs. We collaborate with structural engineers to ensure that all calculations are accurate and that the correct size and type of RSJ is selected for your specific requirements.
  2. Sourcing Quality RSJs: We source high-quality RSJs from trusted suppliers to match your project’s specifications. This ensures that the beams used are robust, reliable, and meet all necessary standards.
  3. Installation: Our skilled fitters handle the entire installation process, including setting up any required temporary supports. We ensure that the RSJ is installed safely and securely, taking care to minimize disruption to your property and maintaining a clean and safe work environment throughout the project.
  4. Compliance and Safety: Safety is our utmost priority. We strictly adhere to all relevant health and safety guidelines and building regulations, ensuring that every RSJ fitting is professional and compliant.

Benefits of Professional RSJ Fitting

  • Structural Integrity: Proper RSJ fitting ensures your building can support additional loads, protecting against structural failure.
  • Design Flexibility: RSJs enable the creation of more open, flexible spaces by eliminating unnecessary supports without compromising safety.
  • Enhanced Property Value: Quality RSJ fitting can increase your property’s value by improving the space and functionality of your home or business premises.

Contact Us for Expert RSJ Fitting

For dependable and professional RSJ fitting services, reach out to us today.

Our experienced team is ready to assist with your construction project, offering expert advice, precise fitting, and exceptional customer service from start to finish.

RSJ Steel Beam Fitting in London

Looking for professional RSJ installation in London? At London Core Construction, we provide expert structural steel solutions for residential and commercial properties across the capital.

Whether you're opening up a space, removing a load-bearing wall, or extending your home, our qualified team ensures every RSJ is installed safely, in full compliance with building regulations.

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RSJ beams installed in london

What is RSJ and why it's essential for structural support

RSJ stands for Rolled Steel Joist, a strong steel beam used to support structural loads in construction. Commonly referred to as steel beams or I-beams, RSJs play a crucial role when altering a building's structure, such as removing interior walls or creating open-plan spaces.

Because RSJs are load-bearing, they replace the support provided by the walls or features being removed. Proper installation is vital to maintain structural integrity and prevent collapse. Without a correctly installed RSJ, your property could be at serious risk. That’s why you need experienced professionals who understand the calculations, positioning, and building regulations involved.

RSJ installation services we offer in London

London Core Construction specialises in complete RSJ supply and installation services tailored to a variety of project needs:

  • RSJ for wall removals – Safely removing load-bearing walls to open up living spaces.
  • RSJ for home extensions – Supporting new openings during single or double-storey extensions.
  • Loft and basement RSJ installations – Strengthening structural areas for conversions.
  • Commercial steelwork solutions – RSJs for retail, office, and industrial spaces.
  • Custom steel fabrication and fitting – Tailored steel beam solutions manufactured and installed.

Whether you're working with an architect or starting from scratch, our team manages the entire RSJ process from consultation to completion.

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RSJ installation being done by London Core Construction

When do you need RSJ installation?

RSJ beams are essential in any project that affects the structural support of your property. Some common situations where you may need RSJ installation include:

  • Removing internal or external load-bearing walls to create open-plan kitchens or lounges.
  • Constructing extensions that require new steel beams to support additional loads.
  • Loft conversions that need ridge beams or floor support.
  • Basement refurbishments where floor joists or external walls require reinforcement.
  • Installing large bi-fold or sliding doors that require structural lintels.

If you're unsure whether your renovation project needs an RSJ, we provide on-site consultations to assess your requirements and offer professional advice.

Qualified RSJ installers and structural engineers

Our RSJ installations are carried out by qualified tradespeople and overseen by experienced structural engineers. We work closely with architects, surveyors, and building control to ensure all calculations, designs, and installations are accurate and compliant.

London Core Construction is fully insured and accredited, and we only use high-grade steel supplied by trusted UK manufacturers. Our teams have years of experience delivering safe, precise RSJ installations in homes and commercial properties across London boroughs.

We pride ourselves on workmanship, punctuality, and a clean site after completion. Every project is completed with structural integrity and client satisfaction in mind.

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Ensuring building regulations and structural safety

Installing an RSJ demands full compliance with UK building regulations, and at London Core Construction, we take this responsibility seriously. Every project we undertake is designed to meet the latest structural safety standards and satisfy local authority requirements from the outset.

During installation, we ensure that RSJs are securely positioned with the correct padstones and fixings, following all specifications. Our team also manages on-site inspections and arranges final sign-offs with building control to guarantee full compliance.

We never cut corners. Your safety—and the long-term structural integrity of your property—relies on precise, professional execution. With our start-to-finish service, you can trust that your RSJ installation is in expert hands.

Book a FREE Consultation

Why choose London Core Construction for

RSJ Installation

in London

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End-to-End Project Management

We handle every stage of your project, ensuring smooth coordination and timely completion.

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Extensive London Construction Experience

With years of experience across London, we understand local regulations, styles, and challenges.

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Customized Construction Plans

Your space, your vision—our team creates tailored plans that fit your needs and lifestyle.

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Commitment to Quality

We use premium materials and expert craftsmanship to deliver lasting, high-quality results.

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Innovative Design Solutions

Our creative team brings fresh, functional design ideas to every project we take on.

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Sustainability Focus

We prioritise sustainable materials and energy-efficient methods for a smarter build.

Request a free quote now for a fast, transparent estimate with no obligations.

Get a FREE Quote

Our 5-Step Project Timeline

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1

Initial Consultation

Every RSJ installation begins with a comprehensive consultation. We’ll visit your property, assess the structural requirements of your project, and determine whether a steel beam is necessary. Our team will explain the process clearly, answer your questions, and provide a no-obligation quote based on your goals and the complexity of the work.

2

Planning & Design

Next, we collaborate with structural engineers and, if needed, your architect or designer. During this phase, we carry out structural calculations, prepare technical drawings, and submit plans for building control approval. We ensure all documentation meets current UK building regulations, so there are no surprises or delays once work begins.

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engineers consulting house plans
3

Pre-Construction Setup

Before the installation starts, we manage all logistical details to keep your project running smoothly. This includes organising steel fabrication, securing padstones, scheduling deliveries, and coordinating access to the site. Health and safety measures are also put in place to protect your property and everyone involved in the build.

4

Build & Execution

Our skilled team carries out the RSJ installation with precision and care. We install the steel beam using the approved method statements, ensuring it is seated correctly and supported by the appropriate fixings. Throughout this stage, we maintain clear communication, provide progress updates, and coordinate any required inspections with building control officers.

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RSJ beams installed in london
5

Final Handover

Once the RSJ is securely installed and signed off, we clean the site and walk you through the completed work. You’ll receive all compliance documentation, including structural approvals and building control sign-off. We only hand over when you’re fully satisfied, leaving you with peace of mind and a structurally sound space ready for the next stage of your renovation.

Frequently Asked Questions

Do I need building regulations approval for an RSJ installation?
How much does RSJ installation cost in London?
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Will I need a structural engineer for my RSJ installation?
Can I remove a load-bearing wall myself if I have an RSJ?
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Whether you have questions about our services, need a quote, or want to discuss your next project, our friendly and knowledgeable team is ready to assist you.

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