Strong, Sustainable, and Green Retaining Walls with Flex MSE®
Manufacturing, Distributing and Constructing retaining walls that blend natural beauty with long-lasting performance.
We love our clients, thank you for choosing Gravitas
Main services
Strong, Sustainable, and Green Retaining Walls with Flex MSE®
01
Design
Engineered using Mechanically Stabilised Earth (MSE) principles and durable geotextile bags.
02
Supply
We supply all materials directly to site nationwide and across Europe.
03
Installation
Our experienced teams manage every stage of construction and installation, ensuring your wall is built to last.
Training
Lunch & Learn, Accredited CPD Courses with Real-World Impact
We believe knowledge is the foundation of great projects. That’s why we offer FREE CPD-accredited training on Flex MSE®, delivered by our in-house experts.
Our interactive sessions cover everything from design principles to installation techniques, with product demonstrations, videos, and practical examples.
Who’s it for?
Civil engineers, landscape architects, contractors, and anyone working in infrastructure, erosion control, or green construction.
The presenter was excellent
(knowledgeable about the product, held
the attention, and was really interesting).
It was one of the most interesting online
seminars I've attended in ages. I have
mentioned it to several colleagues since.
Mark Wiltshire - Major Projects (Wiltshire Council)
"I found the Flex MSE system particularly
interesting, as I wasn’t previously aware of such a solution. It’s great to see a system like this exist, offering such a broad variety of applications. The presentation was well-structured and engaging, and the presenter did an excellent job."
Lisa, Senior Engineer
The presentation and interaction was
very worth while and enabled the presenter to answer many of the questions the team raised and also arrange an additional meeting based
upon our particular project requirements.
Phil Wright, Engineer
How we install
The Strength Behind Every Wall, Watch the Installation
Clients that have trusted Gravitas
Strong, Sustainable, and Green Retaining Walls with Flex MSE®
Product Stats
-
120-year design life
-
75-year warranty
-
Permanent structure
-
Can build near vertical (85°) walls
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Ergonomic - walls are installed quickly with minimal labour and equipment required, saving time and costings.
Key Features
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BBA HAPAS approved
-
Emits 97% less GHG than concrete and 98.5% less GHG than steel in manufacturing (EPD available)
-
Installed by hand (no heavy machinery required)
-
Costs ~60% of concrete or steel
-
Can be used in conjunction with geogrid for stronger reinforcement
Material Composition
-
Made from 50% recycled material
-
The system is 100% recyclable
-
Flex MSE is an inert system, being resistant to acids
and other chemicals -
Vegetation solutions include Hydroseeding the system on completion, live planting, live staking and brush layering
Meet the Herd
At Gravitas, we don’t just work together, we grow together.
Our team is a blend of skilled office staff and hands-on site crews, united by a shared passion for building a greener future.
From the people who handle your first enquiry to the engineers who bring Flex MSE® projects to life, everyone here plays a vital role. We believe in:
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Inclusion — Every voice matters, and every perspective strengthens us.
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Respect — We value the diverse experiences, cultures, and skills each team member brings.
-
Collaboration — Whether in the office or on-site, we work as one herd.
We’re proud to say our workplace is one where people feel valued, motivated, and part of something bigger, because at Gravitas, success is a team sport.
2025 Highlights
Avg time to quote
<24 Hours
CPDs Presented in 2025
386
Face Area Built in 2025
16,830m2
CO2 tonnes saved in 2025
1,746-1,912
The presenter was excellent (knowledgeable about the product, held the attention, and was really interesting). It was one of the most interesting online seminars I've attended in ages. I have mentioned it to several colleagues since.
4.9
/5
Mark - Major Projects
(Wiltshire Council)