Flexi pipe and front joints
The flexible section is checked for split braid, leakage and movement, while nearby manifold, downpipe and sensor joints remain separate repair areas.
Exhaust leak & noise diagnosis
Exhaust Flexi Pipe & Back Box Repair in South London
A blowing exhaust, metallic rattle or louder-than-normal note can come from a flexi joint, pipe, clamp, hanger, silencer or back box. SP88 locates the leak before recommending a suitable repair.
South London & nearby SurreyWeekdays: 10:00, 12:00 or 14:00Weekends closed
Identify the failed exhaust section first
Exhaust parts are vehicle-specific and corrosion can spread beyond the obvious hole. The surrounding joints and support points need checking before one section is ordered.
Centre pipe and back box
Pipes and silencers are checked for corrosion, seams, impact damage and internal rattles that can sound like a loose heat shield.
Clamps, flanges and hangers
A failed clamp, gasket or rubber hanger can create noise or poor alignment without the main silencer being defective.
Catalyst and emissions boundaries
Catalytic converters, particulate filters and sensors are identified separately. Required emissions equipment is not removed or bypassed.
How the visit works
Describe the noise
Tell us whether it changes on acceleration, started after an impact or comes with fumes or warning lights.
Locate the leak
SP88 checks accessible joints, sections and supports before advising replacement or a workshop repair option.
Fit and recheck
Where suitable, the correct section, clamp, gasket or hanger is fitted and clearance and leaks are rechecked.
Fumes or a dragging exhaust need prompt action
Do not keep driving if exhaust parts are hanging, touching the road or allowing fumes into the cabin. Hot components can cause burns or fire risk, and carbon monoxide cannot be judged by smell alone.
Mobile where suitable, workshop when necessary
Accessible bolt-on sections, clamps and hangers may be suitable for mobile work. Heavy corrosion, seized flanges, fabrication or welding requirements, damaged emissions components or poor lifting access may require a workshop or exhaust specialist.
Questions customers ask
Can you replace only the flexi section?
That depends on how it is built and the condition of adjacent pipework. Some are bolt-on sections; others need controlled fabrication or a larger assembly.
Is a loud exhaust always the back box?
No. Flexi joints, clamps, centre pipes, catalyst joints and manifold leaks can all make the system louder.
Will you remove a catalyst or DPF?
No. Required emissions equipment is retained and repaired or replaced lawfully.
Can you weld an exhaust at the roadside?
This page does not promise mobile welding. The vehicle is inspected first and workshop or specialist work is recommended when fabrication is needed.
Send the vehicle details before booking
Include the registration, make and model, postcode and symptoms. That helps SP88 check likely access, parts and whether the first visit should be mobile diagnosis or workshop work.