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M&M Services Group

Sealants

Silicone and expansion joints for Dubai projects — installed, inspected, repaired

Failed, missing or non-conforming sealant is a weatherproofing defect that holds handover open. M&M installs, inspects and repairs silicone and expansion joints to the standard proven on Australian tier-1 towers, airports and metro stations.

Glazed facade units stacked on trolleys on a raw concrete floor, services and cabling looped from the soffit above

Australian delivery record · M&M project photography

What it is

What this service covers and how we deliver it

M&M Services Group is an Australian facade and surface rectification services group with 90+ skilled staff, whose founders bring 25+ years in the trade. Our silicone teams install, inspect and repair weather seals, movement joints and large expansion joints, recorded at every stage through inspection and test plan (ITP) records and time-stamped images. That capability — proven at Western Sydney International Airport, One Sydney Harbour, One Circular Quay and Sydney Metro stations — is now delivering on Dubai projects.

Caulking and silicone is the wet-seal trade that keeps water out of a building. On a facade, a joint is the last line between the weather and the interior — and one of the first things inspected at handover. We install, inspect and repair the full range of joints a modern tower carries: perimeter weather seals to windows, doors and curtain wall; movement and expansion joints between facade panels; and the fine glazing seals around glass balustrades and frameless assemblies. Small joints and large expansion joints are detailed for the movement they have to absorb, not simply filled.

The proof sits in Australian tier-1 delivery. Our teams sealed the silicone joints around the glass balustrades at Western Sydney International Airport, and delivered silicone and sealant works at One Sydney Harbour, One Circular Quay and Sydney Metro stations — projects run under the quality scrutiny and immovable programmes that tier-1 Australian construction demands. From its beginnings as M&M Spray Painting, the business has grown to 90+ skilled staff across Australia — the track record now available to Dubai's main contractors and facade companies.

Before mass application the joint is proved — the right sealant for each substrate, the right joint design, and, where the joint is visible, an on-site colour match to the adjacent finish. Every run is recorded against an inspection and test plan (ITP), with live project records and time-stamped images available to the client in a shared project folder. On Dubai works, methods and acceptance points are set against the project specification and applicable UAE codes.

Much of that Australian work was done on coastal high-rise facades exposed to sun, salt and weather — relevant experience for the demands a Gulf facade places on a sealant joint. Where access at height is required, the access method and its interfaces are confirmed separately for the project, and the work is sequenced to suit the agreed programme.

For a main contractor or facade company in Dubai, the offer is a single accountable scope. Silicone sits alongside M&M's facade rectification, glass restoration and coatings trades, so a mixed defect list can be reviewed under one engagement and one set of documentation. The Australian company brings its methodology and quality controls to each agreed Dubai package.

What's included

Everything this scope covers

  • Installation of new silicone weather seals to windows, doors and curtain wall
  • Inspection and condition assessment of existing silicone and sealant joints
  • Repair, cut-out and re-seal of failed or non-conforming joints
  • Small joints and large expansion / movement joints
  • Perimeter weather seals and internal wet-area joints
  • Silicone joints around glass balustrades and frameless glazing
  • Joint design correction — width-to-depth ratio, backer rod and bond breaker
  • Substrate-appropriate sealant selection (glass, powdercoated and anodised aluminium, stainless, stone, concrete, precast, timber)
  • Substrate preparation, priming where required, and correct tooling
  • On-site colour match of visible joints before mass application
  • Resourcing and shift pattern for large or live-facade re-seals agreed before appointment
  • ITP documentation, live project records and time-stamped images via OneDrive

What this fixes

The handover risks this scope removes

Weatherproofing defects blocking close-out

A failed or missing perimeter seal is a water-ingress defect that holds an elevation open. Getting the joint conforming is often what stands between the programme and practical completion.

No record of what was installed and when

When a joint has to be revisited, time-stamped records show exactly what was installed and when — a complete quality-assurance history rather than guesswork.

Multi-trade coordination on facade defect lists

Balustrade and facade snags rarely arrive as one trade. Sealant, glass, stainless and coatings on the same defect list can be closed by one crew under one agreed package, instead of three separate trades to coordinate.

Rework and access cost after scaffold-down

A joint applied over a poor substrate or at the wrong width will re-fail once access is gone. Proving the joint before mass application avoids a return visit at height during the defects liability period.

How we do it

The same careful method, every time

  1. Survey and joint assessment

    Walk the elevation or area, identify joint types (weather seal, movement joint, expansion joint, wet-area), record the substrates on each face, and log failed, missing or non-conforming runs against location — the basis of the ITP and the handover record.

  2. Sample, sealant selection and colour match

    Confirm the correct sealant chemistry for each substrate pairing (including where a primer or neutral-cure product is required), size the joint correctly, and — for visible joints — achieve an on-site colour match to the adjacent finish before any bulk application.

  3. Method statement and ITP

    Set out the approved methodology, hold points and inspection criteria in an inspection and test plan, agreed with the Engineer so the sign-off standard is clear before work starts.

  4. Preparation and execution

    Clean and dry the adhesion surfaces, install backer rod or bond breaker so the sealant flexes correctly, prime where specified, then apply and tool the joint within the material's working conditions.

  5. QA and documentation

    Record each completed run with time-stamped images and live project documentation against the ITP, and make the record available to the builder in a shared project folder for review at any time.

  6. Inspection and sign-off

    Present the joints for the Engineer's inspection and close them out, leaving a complete quality-assurance record that stands behind the work through the defects liability period.

Why it holds up

What you get when M&M does the work

Install, inspect and repair — one accountable trade

The same team that runs the joint stands behind it through the defects liability period, rather than a supply-only installer who has left site.

The right sealant for each substrate

Sealant chemistry, priming and joint design are selected for each substrate pairing — glass, coated and anodised aluminium, stainless, stone, concrete and timber are each detailed differently.

Proved before mass application

The joint is confirmed — and, where visible, colour-matched to the adjacent finish on site — before the bulk of the work goes in, so the elevation is right the first time.

Records ready for sign-off

ITP documentation, live records and time-stamped images give the Engineer quality-assurance evidence to close the joint and the builder a complete record of every run installed.

Sequenced around your programme

Large re-seals and live-facade repairs can be sequenced around other trades and around operating hours, with resourcing agreed before appointment.

Part of one agreed finishing package

Caulking sits alongside facade rectification, glass, stainless and painting under one agreed package — a mixed defect list, one point of accountability.

Questions

What main contractors ask us

All three — installation, inspection and repair of silicone joints. We assess existing joints, cut out and re-seal failed or non-conforming runs, and install new weather and movement seals.

Yes. We manage both small joints and large expansion and movement joints, sizing and detailing each for the movement it has to absorb rather than simply filling the gap.

The sealant chemistry, any primer and the joint design are selected for each substrate — glass, powdercoated and anodised aluminium, stainless, stone, concrete, precast and timber all behave differently, and neutral-cure products are used where an acetoxy cure would stain stone or attack a coating.

Yes — for visible joints we achieve an on-site colour match to the surrounding finish before mass application, the same approach we use across our finishing trades.

ITP documentation, live project records and time-stamped images of each joint, made available in a shared project folder for the builder to view at any time — evidence to close the joint out and a complete record for the defects liability period.

Yes — including the silicone joints around glass balustrades at Western Sydney International Airport, with further silicone and sealant work delivered on landmark towers and public transport infrastructure.

Sealant systems are selected to suit the substrate and the project specification, and the specific products and any warranty terms are confirmed per project with the builder before work starts.

Start the conversation

Send us your Dubai project brief and we will review the scope and access with you.