Updated on 2025-11-19
Welding costs for car repairs in the UK typically range from around £125 for minor jobs to about £1,000 for complex work such as chassis repairs. Mobile services often have a call-out fee. This guide explains prices, time, and the factors that change your quote.
As of 19 November 2025, budget ~£125 for small rust patches, ~£300 for sill repairs, and up to ~£1,000 for extensive chassis work. Mobile welders usually charge £200–£300 for 2–3 hours. Total costs vary by repair complexity, accessibility, materials, and the welding process used.
Key takeaways
- Small car-welding jobs often start near £125; complex structural repairs can reach ~£1,000.
- Mobile call-outs typically cost £200–£300 for 2–3 hours; expect extra for evenings/weekends.
- Price drivers: repair complexity, access, materials, and MIG vs TIG method; always inspect first.
What Is Welding?
Welding is an essential technique in automotive repairs, transforming the way metal pieces are joined together. This process involves heating materials to their melting point, applying pressure, and creating a robust bond.
Welding is crucial in automotive repairs, enabling strong bonds between metal pieces through heat and pressure.
In the automotive industry, three primary welding techniques are commonly used: Arc welding, Metal-inert gas (MIG) welding, and Tungsten-inert gas (TIG) welding. Each technique has its advantages, depending on the specific repair needs.
You’ll often find welding applied to vehicle frames, fenders, and metal wheels, particularly after MOT failures. To guarantee durability and reliability, hiring an experienced welder is vital.
Proper welding not only addresses visible damage but also includes rust removal and anti-corrosion treatments, greatly enhancing the longevity of the repair.
How Long Does Welding Take?
Small repairs, like fixing rust or holes, typically require 1 to 2 hours, while complex jobs, such as chassis welding, can take notably longer.
The specific welding techniques used and the type of materials involved also influence duration.
Additionally, accessibility can affect the overall time needed. For an accurate estimate tailored to your vehicle’s condition, consult a welding expert before proceeding.
Mobile Welding Cost
As of 19 November 2025, mobile services often come with a minimum call-out charge of £200 (usually covering 2–3 hours). For urgent requests during evenings or weekends, charges can rise to approximately £300. Source: UK consumer price guide.
While convenient, mobile work tends to cost more than garage services. Small repairs still start around £125, but final pricing depends on job complexity and materials.
How Much Does Metal Welding Cost?
When considering metal welding for your car, costs vary with the job’s nature and complexity.
For small jobs (hole or rust repair), expect around £125. Chassis repairs may escalate to approximately £1,000, depending on the extent of damage.
For small repairs, expect around £125; complex chassis work may rise to ~£1,000, depending on damage.
If you opt for mobile welding, be aware of the £200–£300 call-out window above (typically 2–3 hours). A comparison across techniques is crucial because process, location, and complexity materially influence your total spend.
What Affects the Cost to Weld Metal?
Repair Complexity
The size of the damaged area, structural significance, and required techniques can change pricing. Hidden corrosion found during inspection often increases scope and cost.
Location and Accessibility
Hard-to-reach areas increase labour time. Panel removal for rust repairs adds complexity. Common locations like sills, floorpans, and wheel arches require different approaches.
| Welding location | Accessibility challenge | Estimated cost impact |
|---|---|---|
| Sills | Requires panel removal | +£100–£200 |
| Floorpans | Complex access | +£150–£250 |
| Wheel arches | Limited space | +£50–£150 |
| Engine compartment | High disassembly needed | +£200–£400 |
| Rear frame | Structural checks | +£100–£300 |
Type of Welding
MIG is often the more economical choice due to quicker setup. TIG offers precision (and usually higher labour time/cost). Labour rates typically range £50–£150 per hour depending on skill, location, and urgency. See 2025 UK price guide.
- MIG advantages: faster repairs and often lower labour costs.
- TIG is better for intricate work requiring high-quality finishes.
- Extensive rust repairs may exceed £400; small patches can start around £100.
For MOT-related structural areas, patch repairs generally must be continuously seam-welded to pass. DVSA MOT manual.
Things to Consider
Assess damage complexity first—small rust can hide larger issues. Match materials and method to the repair. Decide if you need mobile service (often pricier). Don’t forget anti-corrosion treatments; they add cost but protect your investment.
Key Takeaways on Welding
- Average costs for small repairs typically range around £125, while complex jobs can go up to £1,000.
- Mobile welding services usually start at a minimum call-out charge of £200.
- Prices vary based on location, type of repair, and accessibility, so always get an inspection first.
- Experienced welders use appropriate techniques and materials to ensure durability and address hidden damage.
Common Areas Requiring Welding
Sill repairs are common due to rust. Floorpans often corrode over time. Wheel arches suffer from salt and debris. Frame welding maintains structural integrity. Fenders may need welding after collisions or with age-related metal fatigue.
Importance of Inspection Before Quoting
Assessing Rust Severity
Use effective rust detection to confirm location and depth. Small patches often mask larger issues, which directly influence cost and method.
Evaluating Accessibility Issues
Pre-quote inspections reveal access challenges and obstructions that add time and logistics. Whether the work relates to an MOT failure or preventative maintenance also affects pricing.
| Accessibility factor | Impact on cost |
|---|---|
| Hard-to-reach areas | Increased labour required |
| Obstructions present | Additional repair logistics |
| MOT failure vs maintenance | Pricing variations |
Identifying Repair Type
A thorough inspection confirms repair type, location/depth of corrosion, access needs, urgency, and whether MOT-critical areas require **seam-welded** patching.
FAQs
How much does car welding usually cost in the UK?
Small rust patches are often around £125, sill repairs near £300, and complex chassis work up to about £1,000. Mobile call-outs are typically £200–£300 for 2–3 hours.
How long do typical welding repairs take?
Simple patches often take 1–2 hours. Structural or hard-to-access repairs can take longer due to disassembly, prep, and seam-welding requirements in MOT-critical areas.
Will welding help my car pass its MOT?
Yes, if corrosion compromises structural areas, compliant welding can restore integrity. Patch repairs in prescribed areas generally must be continuously seam-welded to pass.
Are mobile welders more expensive than garages?
Usually. Expect a £200–£300 call-out that covers 2–3 hours, plus hourly or material charges if the job goes beyond that window.
Can I do welding repairs myself?
DIY is possible but risky. Poor welds can fail MOT and compromise safety. For structural or MOT-related areas, hire a qualified welder.
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Conclusion
In summary, understanding the costs and factors affecting car welding in the UK helps with budgeting and planning. For a vintage car with extensive rust, welding might range from £300 to £800 or more, depending on scope. Always get a thorough inspection first to surface hidden issues and avoid surprises.
