The original detail is failing
A cornice is spalling, a finial has been lost, a string course has broken away. You need matched replacements. Silicone moulding is the route to a matched reproduction.
Heritage · Restoration moulds
Rebuild a lost detail from one surviving section.
Silicone moulds taken from surviving cornices, finials, string courses, keystones and capstones — in situ on listed elevations, or in our Warwickshire workshop from a section you send us. One is enough to make the mould that makes the next hundred.
When it fits
When heritage moulding is the right answer.
Only one section survives
A parapet has one intact section and three failed ones. The intact one is the pattern. The mould is taken from it, then used to make replacements for the failures.
The elevation is listed
Listed status means the reproduction has to match the original. Silicone captures the tooling marks, the weathering pattern, the arris — everything that makes the reproduction convincing.
The detail can't be removed for pattern-making
A cornice attached to the building has to be moulded in situ. Brush-on silicone with a rigid mother mould does that.
The choice
How we take a mould from a surviving section.
If the section can come to the workshop, we bench-mould it — that's a two-part or brush-on silicone mould built around the piece, backed with a rigid mother mould that keeps the silicone in shape when it comes off the original. This is the cleanest route, gives the best detail capture, and lets us take the time to make sure the mould is right.
If the section can't come off the building, we mould it in situ. A brush-on silicone is applied to the surviving detail in layers, thickened so it stays where it's put, and jacketed with a rigid backing before it comes off. That's a specialist job — we've done it enough times to know how to protect the original and how to leave nothing behind.
Either way, the silicone captures the weathering, the tool marks and the tiny asymmetries that make a reproduction convincing. A drawing-based reproduction always looks slightly wrong. A silicone mould from the original does not.
What we need
To quote this properly.
Photographs of the failed sections and the survivor
So we can see what needs replacing and what we're moulding from.
Site access details, if it's in situ
Height, access equipment, working hours. Determines how the in-situ mould is built.
Number of reproductions required
One finial, ten cornice sections, a full parapet run. Determines silicone grade.
Any conservation officer requirements
Some listed jobs come with specific reproduction methodology. We work to it.
The honest bit
Heritage moulding is patient work.
A silicone mould taken from a surviving section is only as good as what you cast into it. The silicone captures the geometry — the concrete or GRC mix you use afterwards has to be chosen for weathering behaviour that matches the original stone, or the reproductions will read as newer than the survivors within a few years.
That's often a conversation with the conservation officer or the specifying architect. We're happy to be in that conversation — we know silicone, we know GRC and cast-stone mixes, and we can help translate between them.
In-situ moulding takes longer than bench moulding. We can't rush the cure without risking the original. If the programme is tight, we'd rather flag it early and agree a realistic date than promise a fast turnaround and fail on it.
Drill down
4 variants of this service.
Each one has its own page with the detail we'd normally cover on the first call.
Related
Where this fits in the wider system.
At a glance
The idea in a picture.
How a two-part mould fits together
Swipe to see the whole diagram
Get in touch
Send us a photograph of the panel or the elevation.
One photograph tells us what surface you're chasing, and one line about the mix tells us what silicone or polyurethane will survive it.
Real people, a real workshop
You deal with the people who make it.
No call centre and no middlemen. When you contact TCI Construction, you speak to the team who design, build and check your mould.
- A real Warwickshire workshopUnit 15, Waterloo Park, Bidford-on-Avon, Alcester B50 4JG.
- Real people on the phoneCall the team on 01789 224228, Monday to Friday.
- The same team on every jobDesign, production and aftercare come from the people you see here.
- Part of TCI GroupFive specialist brands, one engineering team. Visit TCI Group.
Thomas LaneManaging Director
George PrestonDesign & Project Manager
Kelly BallingerHead of Partnerships
Jim AndertonProduction Manager
TheodoreEmployee Welfare