Structural alterations, new openings and steel support in Parsons Green. Trusted, professional, 30+ years' hands-on experience.
GS Renovation carries out structural alterations across Parsons Green and the wider SW6 area, from new openings in the rear closet wing to replacement joists and supported openings in the Victorian and Edwardian terraces near the green. Backed by more than 30 years in Hammersmith and Fulham, we bring engineering, propping and building control together on one job.

Every alteration on these SW6 terraces starts with understanding an old house. The bay-fronted Victorian and Edwardian properties near the green were built with lime mortar, timber floors and shallow foundations, so we ask a structural engineer to assess the existing structure before designing a new opening, a replacement steel or, where movement has appeared, underpinning to a failing corner.
Common Parsons Green work includes forming a wide opening into the side return for a kitchen extension, renewing decayed joists over a damp rear closet wing, and adding a supported opening between the kitchen and garden. In each case a steel beam is sized to the load, bears onto padstones over sound masonry, and the surrounding brickwork is made good once the props come out.
Structural alterations in Parsons Green are controlled under the Building Regulations rather than planning, so Hammersmith and Fulham Council's building control inspects the propping, the beam bearings and any underpinning, then issues the certificate. We coordinate the engineer's calculations, book the site inspections at the right stages, and keep the paperwork straight from start to finish.
Where an opening, a beam or underpinning touches the party wall shared with the house next door, the Party Wall Act applies and notice must go to the adjoining owner first. On a tightly built SW6 terrace that is the norm rather than the exception, so you serve the notices early and program the work around them, keeping your neighbours informed and the job free of disputes.
For structural alterations in Parsons Green, GS Renovation gives you a single team that owns the whole process: engineer-designed beams and underpinning served, building control inspections booked and passed, and safe temporary propping throughout. We keep an occupied SW6 home clean and secure as we work, and stand behind every certified result with 30+ years in the borough.
Giorgio is an excellent and intelligent workman, and with very reasonable prices! He installed a kitchen extractor fan in a complicated situation…
George did a great job on our new bathroom. He is a really friendly and helpful guy and always ready to discuss any issues or concerns and come up…
Saaid is the best craftsman I have worked with. He knows what he is doing from the very beginning. He has a great knowledge of construction…
FAQ
Not a real one, no. We can explain on 07472 424 226 how structural alterations are usually approached in a Parsons Green home and what tends to move the cost, but the SW6 property has to be seen before GS Renovation commits anything to paper. Builders who quote blind across Hammersmith and Fulham are the ones who revise later. Email info@gsrenovationltd.co.uk with the address and we will arrange a time. The SW6 survey carries no obligation of any kind. As a rough guide, structural alterations in London ranges from roughly £1,500 for a simple opening to £15,000 or more where underpinning or major works are involved (indicative London ranges, MyBuilder and Checkatrade, 2026). Your figure depends on the size, specification and condition of the property, which is why we survey before quoting.
Noisiest at the beginning, quietest at the end. Once the structural element of structural alterations are complete at your SW6 address the Parsons Green project moves into finishing trades, which are far easier to live alongside. GS Renovation seals the work area and keeps access routes clean each day. The written programme tells a Hammersmith and Fulham household exactly which week is which. Neighbours in Parsons Green and around SW6 are told before any noisy Hammersmith and Fulham stage begins.
We are, on every job without exception. Insurance is not something a Parsons Green homeowner should have to ask about, so the certificate is offered with the structural alterations quotation for your SW6 property rather than produced afterwards. GS Renovation also coordinates Hammersmith and Fulham Council building control, which is the other protection that matters. Both are included as standard across Hammersmith and Fulham. Ring 07472 424 226 if you want the documents first. Company number 14611254 is on every Hammersmith and Fulham document.
The engineer's calculations usually take a week or two, and a building notice to Hammersmith and Fulham Council can be submitted quickly. Full plans approval takes longer but gives more certainty before work starts. We advise which route suits your SW6 project when we quote.
We can, and we would tell you early if we could not. Structural alterations in Edwardian bay-fronted houses with generous ceiling heights and long rear gardens occasionally runs into a structure that will not do what the owner hoped, and finding that out at the SW6 survey is far better than on site. GS Renovation is honest about it before a Parsons Green client commits. The visit is free either way. Hammersmith and Fulham Council building control is coordinated by GS Renovation on every structural alterations project in Hammersmith and Fulham.
Not always. Cracking in an SW6 closet wing can come from old lime mortar, shallow foundations or historic movement that has long since settled. We have a structural engineer assess it first; underpinning is only specified where the foundation genuinely needs it. If it does, we design it, serve and have building control inspect the work.
We work on both, and the difference is consent rather than construction. A Parsons Green flat needs the freeholder's agreement before structural alterations begins, and in a period block the structure at SW6 may be carrying load from several storeys. GS Renovation establishes that with an engineer first. The survey across Hammersmith and Fulham costs nothing. Ring 07472 424 226 and we will explain the Hammersmith and Fulham Council position. Freeholder consent is confirmed before any SW6 design work begins.
Every Service, One Team
The same trusted team, 30+ years' hands-on experience and free, no-obligation quotes apply to every GS Renovation service in Parsons Green. Explore what else we do locally:
Same Service, Nearby Areas
We carry out structural alterations across Parsons Green and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for structural alterations in Parsons Green. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.