Structural Alteration Specialists
Structural Alteration Specialists
We are trusted building contractors specialising in structural alterations and residential building works that reshape and elevate your home.
Our Core Expertise
We can help you with house alterations including:
Reclaim valuable square footage with clean, safe chimney removals. Our engineers design the proper supports for adjoining walls and floors, manage building control submissions, and deliver a spotless finish.
Turn boxed-in layouts into open, light-filled spaces. We calculate, supply, and install all structural supports (RSJs, steels, padstones) with precision — ensuring your new open-plan space is both elegant and safe.
When you plan to change your home’s structure you need an integrated team of of structural construction experts who understand every layer of a London house.
Get a quick, reliable estimate for your home upgrade.
How We Bring Your Project to Life
Everything you need to know before we begin work on your home.
Book a no-obligation visit or video consultation with our structural team to discuss your plans and check feasibility.
We visit your property to carry out a full survey, take precise measurements, and prepare the structural drawings and calculations required for building control.
You receive a detailed, itemised quote covering engineering, materials, labour, and construction timelines — with no surprises or hidden costs.
Our engineers and builders begin the structural works. We handle all on-site activity, organise inspections, and keep you updated at every stage to ensure a smooth and safe process from start to finish.
Why Homeowners Choose Us
What makes our structural work safer, smoother, and more dependable.
Recent Structural Works We’re Proud Of
A Look at Our Completed Home Transformations
Project 280 – Barn Hill
Project Type: Wall Removal, Kitchen Renovation
Services Provided: Structural Engineering, Construction
Location: Brent
Status: Complete 2024
Project 509 – Greenford Road
Project Type:Chimney Breast Removal
Services Provided: Structural Engineering, Construction.
Location: Ealing
Status: Complete 2025.
Project 323 – Waldegrave Road
Project Type: Wall Removal, Chimney Removal.
Services Provided: Structural Engineering, Construction.
Location: Ealing.
Status: Complete 2024.
Project 492 – Bideford Road
Project Type: Chimney Removal.
Services Provided: Structural Engineering, Construction.
Location: Hillingdon.
Status: Complete 2025.
Project 329 – Mare St
Project Type: Wall Removal
Services Provided: Construction
Location: Hackney
Status: Complete 2024
Structural Alteration Specialists London with Proven Experience
Posted on Sabaa HussainTrustindex verifies that the original source of the review is Google. We met with Safi to have our 2 chimneys removed from our property throughout the house. He found an additional stack which was hidden and this was also removed. After we told Safi our vision for the house his team was able to remove the chimneys and also move the lode bearing walls (which we were previously told by someone else could not be moved). Sandstone has essentially brought our vision to life within the house. Professional and realistic and always attempting to bring ideas and solve problems. Thanks again.Posted on MarinAdilTrustindex verifies that the original source of the review is Google. We recently hired Sandstone Engineering for a significant renovation at our property, and we couldn't be more pleased with the entire experience. From the initial consultation with Safi he was professional, knowledgeable, and took the time to understand our vision for the project. Their quote was clear, detailed, and competitive. The team was amazing! They were always punctual, tidy, and respectful of our home throughout the process. Communication was excellent; we were kept informed of progress at every stage, and any questions we had were answered promptly and clearly. The quality of the workmanship is outstanding. All work was completed to a high standard, with a keen eye for detail. They also handled all necessary coordination with building regulations, providing us with full peace of mind. We highly recommend Sandstone Engineering for any construction or renovation project. They are a trustworthy, skilled, and professional company that delivers on their promises.Posted on Anita MTrustindex verifies that the original source of the review is Google. Sandstone recently renovated and extended our garage into a beautiful detached garden & storage room, and the outcome was fantastic. The workmanship and overall quality were excellent from start to finish. The team was amicable and a pleasure to work with throughout the project. A special shout-out to Safi, who was accommodating, professional, and consistently responsive, making the entire process feel smooth and well managed. Highly recommend Sandstone for anyone looking for a high-quality build and/or renovation with a team you can genuinely rely on.Posted on Anita JoshiTrustindex verifies that the original source of the review is Google. From the initial consultation through to the final inspection, the entire process was smooth and well organised. Safi took the time to explain each step of the chimney breast removal in detail and kept us fully informed throughout the application process. The team were punctual, hardworking, and very mindful of minimising disruption, leaving the property clean and tidy at the end of each day. This was my first experience with Sandstone Structures and I was extremely impressed. I would definitely recommend them.Posted on Tom GaylerTrustindex verifies that the original source of the review is Google. Safi’s team did an excellent job removing a chimney breast between our kitchen and lounge. The work was done quickly, efficiently and to a high standard, with most of the structural changes completed in a week. Really appreciated the on site guidance from Yahia, who made some last minute changes to help with the next stage of our kitchen renovation. Would definitely recommend!Posted on Kira CochraneTrustindex verifies that the original source of the review is Google. Sandstone Engineering were great - they came to take down a wall at short notice, and were amenable when I had to move the date back by a week because of illness. A team of them came in and took down the wall in one day, doing all the making good and cleaning up in that time as well. Beautifully done and good value. Recommended!Posted on B ATrustindex verifies that the original source of the review is Google. We had our chimney breast at both the ground and first floor removed by Chimney Engineering. Yahia was very knowledgeable about the entire process and walked us through very step from the building control application, structural design, the removal of the chimney breasts and installation of the structural steels. We would recommend Chimney Engineering to anyone looking to remove their chimney.



