Carpentry, Joinery & Plaster

Q: How do you ensure that new fire doors and partitions meet 2026 legal standards?

Compliance is built into our joinery. We install certified FD30/FD60 fire doors with precise intumescent routing and fire-rated hardware. Every installation is documented with photographic evidence of the hidden fire-stopping layers to satisfy Building Control and your insurer.

Q: Can you resolve 'bouncy' floors or squeaky joists during a renovation?

Yes. This is usually caused by joist deflection or poor nailing patterns. We mathematically calculate the required reinforcement and 'sister' the existing timbers with engineered wood. This creates a rigid substrate essential for luxury plumbing integration and flawless tile or stone finishes.

Structural Fabric. Architectural Tolerance.

Tarj Construction delivers engineered timber framing, bespoke architectural joinery, and high-tolerance wet trades across London and Essex. From structural joist remediation to flawless acoustic plastering, we ensure your property’s internal fabric is built for absolute rigidity and fire safety.

Engineered timber frameworks and high-specification plastering.

Carpentry and plastering are not merely cosmetic; they dictate the acoustic separation and fire compartmentalisation of your asset. Poor execution leads to joist deflection, acoustic flanking, and the rapid degradation of high-end finishes. At Tarj Construction, we treat internal fabric as a rigorous technical discipline. Whether we are undertaking complex structural timber repairs following a Roofing failure, installing fire-rated partitions for a Flat Refurbishment, or applying breathable lime plaster, we deliver internal envelopes that perform under modern building physics.

Structural Timber Remediation & Deflection Correction
Acoustic & Fire-Rated Partitioning (Part B & Part E Compliant)
Heritage Lime Plastering & Lath Repairs for Cottage & Period Homes

High-Tolerance Skimming & Drylining Systems
Bespoke Architectural Joinery & Cabinetry Integration

Technical Scope & Internal Fabric Engineering

From structural timber remediation to high-tolerance architectural finishes.

Structural Timber & Joist Remediation

Load-bearing timber engineering and deflection correction in London and Essex residential assets.

Forensic assessment and repair of wet rot, dry rot, and woodworm degradation
Floor joist reinforcement, sistering, and acoustic decoupling to eliminate floor bounce
Load-bearing studwork and structural roof timber modifications for open-plan layouts
Complex staircase engineering and balustrade compliance upgrades (Part K)
Traditional timber beam scarfing for Heritage & Listed Building Remediation

Acoustic & Fire-Rated Partitioning

Statutory life-safety and sound transmission control (Part B & Part E).

Installation of certified FD30/FD60 fire doors with intumescent routing and hardware
Acoustic floor build-ups and sound-dampening ceiling installations for Flat & Apartment Refurbishment
Fire-rated drywall compartmentalisation to protect structural steelwork (RSJs)
Service penetration fire-stopping and acoustic flanking sealing

Bespoke Architectural Joinery

High-specification, custom-crafted interior fabric built to architectural tolerances.

Precision installation of bespoke cabinetry and architectural hardware
Seamless structural modifications for luxury Kitchen Engineering and integrated storage
High-tolerance fitting of hardwood flooring, deep skirting, and architraves
Restoration of period panelling, sash windows, and historic timber features

High-Tolerance Plastering & Heritage Wet Trades

Flawless surface preparation and moisture-compliant finishing.

Level 5 equivalent skimming and high-impact drylining systems
Vapour-permeable hydraulic lime plastering to preserve building breathability
Lath and plaster consolidation and heritage cornice restoration for Cottage & Period Homes
Specialist damp-proof rendering and anti-condensation treatments

Statutory Governance & Compliance Handover

Providing verified traceability for all internal fabric modifications.

Rigorous alignment with Building Regulations (Part B, E, L, and M)
Photographic documentation of hidden fire-stopping and acoustic layers
Certification of fire door installations and structural timber treatments
Integration of all material data into your Project Governance file

The Construction-Led Advantage

Acoustic privacy, life-safety, and flawless architectural tolerances.

Statutory Fire Compartmentalisation

Internal joinery is the primary defense against fire spread. We engineer robust, Part B compliant compartmentalisation—installing certified FD30/FD60 doors and intumescent barriers—that protect both human life and your structural asset from catastrophic loss.

Acoustic Privacy & Part E Compliance

Airborne and impact noise destroy the comfort of luxury homes and high-density apartments. Through acoustic decoupling, resilient barring, and dense mass partitioning, we eradicate sound flanking, ensuring absolute privacy and legal compliance for landlords and developers.

High-Tolerance Architectural Longevity

Cheap plaster cracks because the timber behind it moves. By mathematically correcting joist deflection and utilising engineered timber, we provide an ultra-rigid substrate. This guarantees that our Level 5 equivalent plaster finishes remain flawless for decades, eliminating costly snagging.

Moisture Physics & Fabric Breathability

Applying modern gypsum to older properties traps moisture, causing rapid structural timber decay. We deploy traditional hydraulic lime plasters and vapour-permeable materials, ensuring your building's fabric continues to 'breathe', perfectly aligning with our Heritage & Listed Building Remediation standards.

Architectural Precision. Structural Integration.

Our high-tolerance internal fabric framework.

We keep compliance practical: clear stages, documented evidence, and a trail you can rely on for governance and audit.

01. Forensic Tolerance & Moisture Audit

Rigorous pre-installation checks to assess joist deflection, load-bearing integrity, and timber moisture content, ensuring an absolutely stable, movement-free substrate for high-end finishes.

02. M&E Coordination & 1st Fix Integration

Seamless collaboration with our mechanical and electrical teams during Whole-Home Refurbishments to route services safely without compromising the structural timber, acoustic decoupling, or fire compartmentalisation.

03. Structural Carpentry & Acoustic Framing

Engineering the primary timber framework, fitting resilient barring for Part E sound insulation, and installing certified FD30/FD60 fire doors with precise intumescent routing.

04. High-Tolerance Wet Trades & Bespoke Joinery

The meticulous execution of Level 5 equivalent skimming, breathable heritage lime plastering, and the flawless installation of architectural cabinetry, deep skirting, and hardwood finishes.

05. Statutory Verification & 'Golden Thread' Handover

Final compliance sign-off overseen by our Quality Assurance & Site Oversight team, delivering photographic evidence of hidden fire-stopping and acoustic layers for your permanent asset records.

Need expert carpentry or plastering?

Make your finish precise, durable, refined, seamless.

Speak with our construction team today to discuss your carpentry, joinery, or plastering requirements. We deliver structured, high-quality workmanship built to last.

Discuss Your Project →

Frequently asked questions

Compliance is built into our joinery. We install certified FD30/FD60 fire doors with precise intumescent routing and fire-rated hardware. Every installation is documented with photographic evidence of the hidden fire-stopping layers to satisfy Building Control and your insurer.

Yes. This is usually caused by joist deflection or poor nailing patterns. We mathematically calculate the required reinforcement and 'sister' the existing timbers with engineered wood. This creates a rigid substrate essential for luxury plumbing integration and flawless tile or stone finishes.

Older properties need to 'breathe.' Modern gypsum traps moisture, leading to timber rot. Our hydraulic lime plastering allows moisture to evaporate, protecting the building's fabric. This is a core component of our Heritage & Listed Building service.

You will receive full technical traceability. Managed through our Project Governance framework, this includes treatment certificates for structural timber, fire-door compliance records, and material logs for all acoustic layers—forming the 'Golden Thread' of your property's safety data.