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Massif — Structural Construction
Surveying
01 — Structural & Civil

We raise
the frame.

Then the
floors.

Then the
span.

That is
Massif.

Heavy structural contractors. Thirty-one years of concrete, steel and the awkward gap between a drawing and a site.

Scroll — 04 stages
02 — Position

A building is an argument about load. Everything else — the cladding, the glazing, the render in the brochure — is a conversation that only happens after the frame stands up. We do the part that has to be right the first time.

0
Structures topped out
0M
Sq ft delivered
0
Years trading
0
Reportable incidents 2025
03 — Capability

What we
actually do.

/ 01

Substructure
& piling

Bored and CFA piling, pile caps, capping beams, and the deep basements nobody photographs.

/ 02

In-situ
concrete frame

Slipform cores, post-tensioned slabs, and formwork cycles held to the day.

/ 03

Structural
steel

Fabrication, erection and connection design for long-span and transfer structures.

/ 04

Heavy civils
& bridges

Viaducts, underpasses and the temporary works that make them buildable.

/ 05

Demolition
& enabling

Top-down deconstruction on live sites, with the neighbours still open for business.

04 — Selected work

Northgate Exchange

42 floors — 2024

Dock Four

Steel — 2023

Calder Viaduct

610 m span — 2025
Concrete Steel Piling Civils Concrete Steel Piling Civils
05 — Method

Five stages.
No surprises.

01

Survey & ground

Boreholes before opinions. The ground decides the programme, so we find out what it is first.

02

Temporary works

Every permanent structure is held up by a temporary one. Ours are designed, not improvised.

03

Frame

Core, columns, slabs. A cycle you can set a calendar by, because the trades behind us are setting theirs by it too.

04

Envelope handover

We leave a frame that is plumb, level and dimensionally honest, so the cladding contractor has nothing to argue about.

05

Close out

As-builts, test records and a defects list that is already empty when we hand you the file.

06 — Start something heavy

Send us
the drawings.

Begin a project →
ASSIF ASSIF M M
Studio

Unit 7, Calder Works
Leeds LS10

Enquiries

[email protected]
+44 113 000 0000

Accreditation

CHAS · ISO 9001
ISO 45001

Index

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All rights reserved