Custom Fabrication
Premium Custom Fabrication Services
Looking for professional custom fabrication? In-House Fabrication delivers expert metal fabrication and steel fabrication services. Based in Narangba QLD, we specialise in precision-engineered automotive fabrication, performance modifications, and custom metalwork for 4×4 vehicles, performance cars, and commercial applications.
Our workshop combines advanced TIG welding techniques, CNC precision, and traditional craftsmanship to deliver exceptional custom fabrication solutions. From concept design through to professional installation, we’re your trusted partner for all metal fabrication needs.
Our Custom Fabrication Services
Custom 4×4 Snorkel Fabrication & Installation
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Custom Exhaust Systems – Performance Unleashed
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Custom Manifold & Header Fabrication
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Custom Intake Pipes & Intercooler Systems
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Custom Air Box Fabrication & Installation
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Why Choose In-House Fabrication?
- 20+ Years Combined Experienc
- Premium Materials Only
- Advanced TIG Welding
- Precision Engineering
- Complete Installation Service
- Warranty Protected
- Local Family Business
- Competitive Pricing
- Honest Communication
- Passion for Performance
Our Process.
From Concept to Completion.
1. Design Consultation & Vehicle Assessment
We begin every custom fabrication project with a comprehensive consultation. Our fabricators assess your vehicle, discuss your performance goals, and evaluate technical requirements. Whether you’re seeking improved off-road capability, track performance, or daily driver enhancements, we develop a fabrication plan tailored to your needs.
2. Precision Engineering & CAD Design
Complex projects receive full CAD design treatment, ensuring precise fitment and optimal performance before fabrication begins. We utilise 3D scanning for engine bay mapping, computational flow dynamics for exhaust and intake systems, and finite element analysis for structural components.
3. Material Selection & Procurement
We source only premium materials from trusted Australian suppliers. Our inventory includes:
- 304 & 316 stainless steel in various grades and thicknesses
- 5005 alloy for lightweight, corrosion-resistant applications
- Mild steel with various coating options
- Schedule 10 tubing for performance manifolds
- Marine-grade fasteners and mounting hardware
4. Expert Fabrication & Welding
Our certified fabricators employ advanced techniques:
- Back-purged TIG welding for stainless steel (zero contamination)
- MIG welding for structural mild steel components
- Mandrel bending maintains pipe diameter (critical for flow)
- CNC cutting ensures precision flanges and brackets
- Heat treatment for stress relief on high-temperature components
5. Quality Assurance & Testing
Every fabrication undergoes rigorous quality control:
- Visual inspection of all welds and joints
- Pressure testing for intake and exhaust systems
- Fitment verification on vehicle
- Leak testing for sealed systems (snorkels, intercoolers)
- Performance verification (where applicable)
6. Professional Installation
Our experienced technicians handle complete installation:
- Precision fitting and alignment
- OEM-quality gasket selection and installation
- Proper torque specifications on all fasteners
- Sensor repositioning and wiring (where required)
- Post-installation testing and verification
7. Final Inspection & Customer Handover
Before delivery, we conduct a final walkthrough covering:
- Installation details and component locations
- Maintenance recommendations and service intervals
- Performance expectations and break-in procedures
- Warranty information and coverage details
Materials We Work With
Stainless Steel Fabrication
- 304 Stainless Steel: Excellent corrosion resistance, ideal for exhaust systems, manifolds, and exposed components. Contains 18% chromium and 8% nickel for superior rust protection.
- 316 Stainless Steel: Marine-grade stainless with molybdenum content. Perfect for coastal environments, snorkels, and extreme corrosion resistance applications.
- 321 Stainless Steel: Titanium-stabilised stainless for high-temperature manifolds and turbo components. Superior heat cycling resistance.
Aluminium Alloys
- 5005 Alloy: Excellent formability and corrosion resistance. Our preferred alloy for snorkel fabrication – lightweight yet durable.
- 6061-T6 Aluminium: High strength-to-weight ratio for structural brackets and mounting systems.
Mild Steel
- Hot-Rolled Steel: Cost-effective for brackets, mounting systems, and non-exposed components.
- Cold-Rolled Steel: Superior surface finish for visible components.
- Aluminised Steel: Rust-resistant coating ideal for exhaust systems in budget builds.
Performance & Off-Road Applications
4×4 & Off-Road Fabrication
We specialise in fabrication for serious off-road enthusiasts:
- Diesel engine performance modifications (turbo upgrades, exhaust, intake)
- Snorkel systems for deep water crossings
- Diff breathers and extended breather systems
- Rock sliders and underbody protection
- Custom bullbar and winch mounting
- Long-range fuel tank mounting systems
- Dual battery tray fabrication
- Roof rack and cargo system integration
Performance & Track Applications
For performance enthusiasts and motorsport competitors:
- Turbo manifolds and header systems
- Complete turbo kit fabrication
- Roll cage design and fabrication (CAMS approved)
- Intercooler piping and heat exchanger mounting
- Oil cooler mounting and plumbing
- Radiator upgrades and cooling system mods
- Brake cooling ducting systems
- Exhaust systems for track compliance
Commercial & Industrial Fabrication
Supporting commercial operations with:
- Ute tray modifications and fitouts
- Tool box mounting systems
- Ladder rack fabrication
- Compressor and equipment mounting
- Custom trailer modifications
- Fleet vehicle standardisation
Frequently Asked Questions
Where is the best custom fabrication near me?
In-House Fabrication is conveniently located at 11/29-39 Business Dr, Narangba QLD 4504. We service Brisbane, Gold Coast, Sunshine Coast, and all of South-East Queensland. Our central location provides easy access from the Bruce Highway, making us the ideal choice for custom fabrication near me searches across the region.
What's the difference between steel fabrication and metal fabrication?
Steel fabrication specifically refers to working with steel materials (mild steel, stainless steel, aluminised steel), while metal fabrication is a broader term encompassing all metals including aluminium, stainless steel, mild steel, and specialty alloys. We offer comprehensive metal fabrication near me services covering all automotive metals.
How much does custom exhaust fabrication cost?
Custom exhaust system pricing varies based on your specific requirements including vehicle type, material selection (mild steel vs stainless steel), system configuration (cat-back, turbo-back, or full system), and complexity. Every project is unique, which is why we provide detailed free quotes. Fill out our online quote form or call 0432 095 700 for accurate pricing tailored to your project.
Do you provide installation for custom fabricated parts?
Yes! We offer professional installation for all our custom fabrication work including install exhaust system, install snorkel, install manifold, install intake pipes, install intercooler system, and install air boxes. Installation is typically included in our quoted prices or available as an add-on service.
What materials do you recommend for snorkel fabrication?
For stainless steel snorkel fabrication, we recommend 316 stainless steel for coastal environments (superior corrosion resistance) or 5005 alloy for a lightweight, corrosion-resistant option at a lower price point. Both materials provide excellent durability for Australian conditions.
Can you fabricate manifolds for turbocharged engines?
Absolutely! We specialise in custom manifold fabrication for turbocharged applications, including twin-scroll designs, divided pulse manifolds, and top/bottom mount configurations. Our stainless steel manifold work includes proper thermal management and optimal runner design for quick spool and maximum power.
How long does custom fabrication take?
Standard turnaround times:
- Custom exhaust systems: 1-2 weeks
- Snorkel fabrication: 2-3 weeks
- Manifold fabrication: 3-4 weeks
- Intake systems: 1 week
- Complex projects: 4-6 weeks Urgent production available for time-sensitive projects (additional fees apply).
What warranty do you offer on custom fabrication?
We provide a 12-month workmanship warranty on all fabrication and installation services. This covers welding integrity, fitment issues, and material defects. Performance components used in competition or extreme conditions may have modified warranty terms – discuss with our team during consultation.
Can you match or improve on factory specifications?
Yes! Our custom fabrication often exceeds OEM specifications. For example, our 4×4 snorkel systems use heavier wall thickness than factory alternatives, our custom exhaust system designs optimise flow beyond factory restrictions, and our custom manifold work improves thermal efficiency and power delivery compared to factory castings.
Do you work on diesel and petrol engines?
We work on both diesel and petrol engines across all makes and models. Our expertise includes turbocharged diesels (common in 4×4 applications), naturally aspirated petrol engines, and forced-induction performance builds. Whether you need 4×4 intake pipes for a diesel Ranger or a custom car manifold for a petrol sports car, we’ve got you covered.
Let’s Get Started!
Request a Quote - Fast & Free
Ready to transform your vehicle with professional custom fabrication? Our team is here to help bring your project to life.
What to Include in Your Quote Request:
- Vehicle make, model, and year
- Current modifications (if applicable)
- Your performance goals or requirements
- Preferred materials (stainless steel, mild steel, alloy)
- Timeline requirements
- Photos of engine bay or relevant areas (helpful but not required)
We typically respond to quote requests within 24 hours on business days.
