I would highly recommend Mucha company, I had my kitchen renovation and I found the team extremely professional, friendly, skilled, top job done, thank you Mucha
Clear costs, no surprises
We deliver expert RSJ installation, bringing structural precision and confidence to every project we undertake in Thornbury.
Done right, no shortcuts.
Installing an RSJ is the natural choice for homeowners looking to open up their ground floor and create a more spacious, flowing living environment. By placing a structural steel beam, walls that previously divided rooms can be safely removed, ensuring the integrity of the building remains intact. Our installations in Thornbury are executed following precise calculations by structural engineers, guaranteeing safe and visually appealing results.
For those connecting an extension to an existing property, RSJ installation addresses the structural demands that exceed typical building work. This service, especially in Thornbury, enables a clean architectural connection between the two structures, with the steel beam effectively supporting the load. We manage the entire process-from temporary propping to building control notification-ensuring everything is done right from start to finish.
For landlords transforming HMO properties or investors reconfiguring layouts to maximize rental yield, RSJ installation presents a robust structural option. Introducing rolled steel joists at key architectural points permits significant spatial changes without sacrificing the property's structural integrity. With over 20 years of experience managing complex projects, we provide each RSJ installation with the precision and responsibility that discerning property investors expect.
Dust travels fast. Before we deliver an RSJ in Thornbury, you must strip the surrounding rooms bare. Roll up carpets, take down pictures, and shift dining tables into the garage or out into the garden shed. When heavy masonry comes out under the ceiling, microscopic brick grit penetrates even closed cupboards, so wrapping doorways with heavy polythene sheeting stops grit from invading bedrooms upstairs. Clear access routes completely.
Hidden services cause major delays. We frequently strip old plaster only to find twin-and-earth electrical cables or copper gas pipes notched through the very timber joists where the steel beam needs to sit flush. Electricians and plumbers must isolate these lines before steel lifting gear enters the hallway. Slicing through live wiring or central heating pipes while hoisting heavy metal creates severe safety hazards on site. Take photos of pipe runs behind skirting boards and radiators so trades know their exact routes. Simple preparation prevents accidents.
Every RSJ installation we complete adheres strictly to structural engineers' calculations, ensuring accuracy and long-term stability.
We maintain temporary propping throughout the entire RSJ installation process, safeguarding the existing structure and ensuring the work is conducted with exactness and care.
We take care of building control notifications as part of our RSJ service, so you're never alone navigating regulatory requirements or risking non-compliance.
Once the RSJ is installed, our team performs all necessary make-good works to a high standard, preparing the space for the next phase without requiring extra contractors.
With us managing the RSJ installation alongside related tasks, you benefit from a single point of contact, a clear timeline, and over two decades of structural expertise backing every decision.
Installing an RSJ allows you to open up your ground floor or link an extension to your existing home, transforming your property's layout in a structurally sound and architecturally thoughtful way.
Freezing conditions change everything. When fitting an RSJ in Thornbury during cold spells, wet padstone mortar cannot cure properly if temperatures drop below freezing overnight, which weakens the ultimate load-bearing support for the house above. We use insulated tarpaulins over exposed openings to retain residual heat while setting bricks in place. Masonry work stops if frost settles inside the cavity walls. Cold mortar crumbles easily.
Sudden downpours create dangerous working conditions indoors. Removing an external wall creates a temporary wind tunnel through your ground floor, blowing dust into every corner and allowing driving rain to soak floorboards. Heavy rain dripping onto bare structural steel causes early surface corrosion before fire-rated plasterboard covers the metal flange. We wedge treated timber framing and waterproof membranes into the gaps to keep damp out of the structural core until masonry seals tight. Dry steel protects ceilings.
We start by reviewing the structural engineer's plans to identify the exact RSJ specifications needed for your project, ensuring all details are accurately considered before work begins.
Before touching any load-bearing wall, we install temporary propping to securely support the structure throughout the RSJ installation procedure.
We manage all necessary notifications to building control, ensuring your RSJ installation complies fully with current regulations from day one.
Our skilled team provides and installs the RSJ according to the structural engineer's specifications, whether we are creating an open ground floor or merging a new extension with the existing structure.
Once the RSJ is securely installed and all propping is removed, we restore affected areas to a polished standard, leaving the space ready for the next phase of your project.
Cast iron pipes do not bend. Installing an RSJ in Thornbury often reveals vertical waste stacks hidden inside boxings right where the new beam flange must sit firmly against masonry. You cannot simply notch structural steel around a plastic soil pipe. The entire drain run must be replanned through the joists above, or the open room layout requires a lower ceiling bulkhead.
Older timber joists rarely run straight. When an internal load-bearing spine is stripped away, we often discover sagging bedroom joists that require timber sistering before they can safely rest on the new metal flange. Bolting uneven joists directly to flat steel twists the floorboards upstairs, creating creaks under master beds and cracked ceiling plaster in finished hallways below. Careful packing levels the timber plane. Level floors keep quiet.
Choosing to install an RSJ is crucial in structural projects, and it's approached with the precision that our twenty years of experience demand. Each RSJ we provide and install follows the strict calculations provided by structural engineers, ensuring load transfer is executed correctly from the start. Throughout the project, temporary propping is utilized effectively, and we handle building control notifications seamlessly.
Opening up the ground floor or connecting an extension to an existing structure involves careful installation of RSJs, which serves as the backbone of this transformation. We have successfully carried out similar projects across a variety of homes in Thornbury, where each demands a thoughtful approach to processes like sequencing and maintaining structural integrity. The end result is a professionally executed opening that meets all engineering specifications, finished to a high standard.
What distinguishes us is our ability to deliver RSJ installation as part of a coordinated project rather than as an isolated task. From the initial structural assessment to plastering, decorating, and final handover, every stage is managed under one roof. This continuity not only bridges gaps often found in other projects but ensures that the RSJ and surrounding elements are completed with exceptional care.
Thinking about opening up your ground floor or adding an extension? We are prepared to guide you through each step of the process. From the first RSJ assessment to temporary propping, building control notifications, and making good, we manage everything for you. With our two decades of structural experience, we deliver the precision and accountability essential for projects of this nature. Contacting us is your first step towards a sound and beautifully executed result.
Every RSJ installation we undertake starts with a thorough evaluation of your property and your aspirations for the space. We work directly from an approved structural engineer's calculations, which means each RSJ is specified, supplied, and installed accurately. Our process is clear from the beginning, covering everything from the initial estimate to project completion. Reach out today to arrange a consultation and gain a well-considered assessment of your structural needs.
We work in Thornbury and the surrounding areas, offering professional RSJ installation services. You can reach us by phone or request a free estimate for your project.
approx. 10 milesDistance from our base · Henbury
Call us+44 7723 542170Email usinfo@muchaconstruction.co.ukWe serve your areaThornbury and the surroundings
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I would highly recommend Mucha company, I had my kitchen renovation and I found the team extremely professional, friendly, skilled, top job done, thank you Mucha
Big recommendation for Mucha Construction. Proper honest lads, very professional and the standard of work is spot on. Always reliable, clean and easy to deal with. Definitely recommend to anyone looking for quality building work
I would highly recommend Mucha Construction for, amongst other reasons, their professionalism, friendliness and can do attitude. They have provided their services very promptly and to a very high standard. I will definitely use their services in the future and so should you!
Our Services
One team, from groundworks to final finish. New builds, extensions, loft conversions and full renovations.
New homes built to the engineer's calculations and signed off at every stage.
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House and kitchen extensions that add space, light and lasting value.
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Dormer, hip-to-gable and mansard conversions that turn lofts into rooms.
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Full renovations and modernisations, from HMOs to tired homes made new.
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RSJ installation, core drilling and crack stitching, built to proper standards.
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Kitchens, bathrooms and wet rooms finished with care and clean detail.
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Plumbing, electrics, ventilation and heating handled by one coordinated team.
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Ongoing building maintenance for landlords, investors and managed properties.
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Each project by our Construction Company leaves clients with refined spaces, enduring quality, and elevated comfort.
Mucha Construction Ltd delivers Construction Company services within a precise 20-mile radius of Bristol.
Ask if they manage structural calculations alongside physical installation. It depends on site accountability, because hiring separate parties for calculations and steel lifting leaves you stuck between conflicting advice if wall measurements vary slightly during demolition.
It depends on wall depth and loading points, because an I-shaped beam carries symmetrical floor loads from both sides, while flat-backed channels bolt flush against party walls or carry single leaf brickwork cleanly.
Calculations get approved first, followed by ordering steel from the fabricator, setting adjustable props on timber spreader plates, and confirming service isolations before any sledgehammer touches the plaster in Thornbury.
Building control sign-off is scheduled once the beam rests solidly on cured concrete padstones and fire-resistant encasement is applied. The inspector verifies calculations against physical measurements before walls receive final decorative plaster coats.
