Our Services

Professional mechanical solutions tailored to your needs.

Everything a good independent garage does — delivered to your driveway, workplace or roadside.

SW Mechanics covers the full range of routine and emergency vehicle work across Grays, Thurrock, wider Essex and Greater London. Every job is carried out by an IMI-certified, fully insured technician, priced with a fixed quote before work begins, and backed by a 12-month parts and labour warranty.

Below is exactly what we do, what's included, and — because honesty ranks higher with customers than sales copy — the small number of things a mobile mechanic genuinely can't do at your address.

What our mobile mechanics can do at your location

Our vans are mobile workshops: professional tooling, dealer-level diagnostic computers, jacking and support equipment, and stock of the most commonly needed parts and fluids. That means roughly nine out of ten jobs booked with us are completed entirely on site, in a single visit. For everything else, we tell you before you commit a penny.

Mobile car servicing — interim, full and major

Regular servicing is the cheapest insurance a car owner can buy — skipped oil changes and ignored filters are behind a large share of the four-figure engine and turbo failures we get called to. We service all makes and models to the manufacturer's schedule, at your home or workplace, using OE-quality parts.

What's included in each service level

Interim service (every 6 months / 6,000 miles): engine oil and filter change, fluid top-ups, tyre and brake visual inspection, battery health check, lights and wipers.
Full service (every 12 months / 12,000 miles): everything in the interim service plus air filter replacement, comprehensive brake inspection, suspension and steering checks, cooling system inspection, and a multi-point report.
Major service (every 24 months / 24,000 miles): everything in the full service plus cabin/pollen filter, fuel filter (diesel), spark plugs (petrol, where scheduled), brake fluid condition test, and longer-interval manufacturer items.

Will a mobile service protect my warranty?

Yes. Under UK and EU block exemption rules, your manufacturer warranty stays valid as long as servicing follows the manufacturer's schedule using appropriate-quality parts — it does not have to be done at a main dealer. We follow the schedule to the letter, stamp your service book, and update digital service records where the manufacturer provides access.

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Mobile diagnostics and warning light checks

An illuminated engine management light is the single most common reason customers call us — and the single most misdiagnosed problem in the industry.

Dealer-level equipment, not generic code readers

A basic OBD reader shows generic fault codes. Our technicians carry manufacturer-capable diagnostic platforms that read the full fault memory across every module — engine, transmission, ABS, airbags, body electronics — including manufacturer-specific codes generic tools can't see.

Your diagnostic visit includes a full-system fault scan, plain-English explanation of the fault, the likely root cause, and a fixed quote to fix it — with no obligation. If we fix the fault during the same visit, the diagnostic fee is deducted from the repair cost.

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Brakes, batteries and mechanical repairs

The bread-and-butter repairs that keep a car safe and legal — all completed at your address.

Common repairs we complete on site

Brake pads, discs and sensors (front and rear)
Battery testing, replacement and coding (essential on modern stop-start vehicles)
Alternators and starter motors
Drive belts, pulleys and tensioners
Suspension components: springs, shock absorbers, drop links, bushes
Cooling system: radiators, water pumps, thermostats, hoses
Filters, sensors, ignition coils and spark plugs
Rocker cover and other gasket replacements — including on premium vehicles like Range Rover

On most cars built after roughly 2010, a new battery must be electronically registered to the vehicle or the charging system will shorten its life — a step our technicians never skip.

See recent repair jobs in our gallery

MOT preparation and arrangement

UK law requires MOT tests to be carried out at a DVSA-approved test centre — no mobile service can legally test your car on your driveway. What we can do is make sure you pass. Read GOV.UK MOT guidance.

The most common MOT failures — fixed before your test

According to DVSA data, the most frequent MOT failure categories are lighting, suspension, brakes, tyres and driver's view of the road — and most are cheap to fix in advance. Our pre-MOT inspection at your home checks every testable item, fixes what we find (with your approval), and we can arrange the test with a local approved centre.

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24/7 emergency breakdown assistance

Flat battery outside the supermarket. Non-starter on a Monday morning. Overheating on the A13. Our emergency line answers 24 hours a day, and across our core Grays, Thurrock and East London coverage we average a 45-minute arrival.

Fix-first, tow-last

Traditional breakdown cover is built around recovery. Our model is different: the person who arrives is the mechanic. In the majority of callouts, the fault is diagnosed and repaired at the roadside. Where a roadside fix genuinely isn't possible, we tell you immediately and help you arrange the next step.

Fleet, landlord and business accounts

Property managers, landlords and small fleet operators across Essex use SW Mechanics for scheduled maintenance across multiple vehicles, with consolidated monthly invoicing, priority booking and a single point of contact. Ask about an account when you call.

What a mobile mechanic can't do (and what happens then)

We'd rather tell you this than have you find out mid-job:

MOT testing itself — legally restricted to approved centres (we prepare and arrange instead)
Clutch and gearbox removal, and some internal engine work — jobs that need a vehicle lift for safe access
Four-wheel laser alignment — requires fixed alignment equipment
Air conditioning regassing — requires workshop-based recovery machinery under F-gas regulations

When your job falls into one of these categories, we say so at the quoting stage, explain your options, and can manage the workshop booking for you.

Service comparison at a glance

Service	Typical duration	Done at your location?	Warranty
Interim service	45–60 min	Yes	12 months
Full service	60–90 min	Yes	12 months
Major service	90–150 min	Yes	12 months
Diagnostics	30–60 min	Yes	Fee offset against repair
Brakes / battery / repairs	30 min – 3 hrs	Yes	12 months
Pre-MOT check	45–60 min	Yes (test at approved centre)	12 months on repairs
Emergency breakdown	~45 min arrival	Roadside	12 months on repairs

Frequently asked questions

Can a mobile mechanic replace brake pads and discs at my home?

Yes. Brake pads, discs and sensors are among the most common jobs we complete on driveways across Essex, using professional jacking equipment and torque-controlled fitting. The work carries the same 12-month warranty as workshop-fitted brakes.

Do you supply the parts, or do I buy them myself?

We supply OE-quality parts, included in your fixed quote — that's what allows us to warranty both parts and labour for 12 months. If you'd prefer to supply your own parts, tell us at booking; we can often fit them, though customer-supplied parts carry their own manufacturer warranty rather than ours.

How long does a mobile car service take?

An interim service typically takes 45–60 minutes, a full service 60–90 minutes, and a major service up to two and a half hours depending on the vehicle. You don't need to wait with the car — many customers book while they work from home.

Can you fix a car that won't start?

Usually, yes. Non-starters are most often a battery, starter motor, alternator or fuel/ignition fault — all diagnosable and usually repairable at your location. Call the 24/7 line and describe the symptoms; we'll bring the likely parts with us.

Do you charge a call-out fee?

Your fixed quote covers the visit and the work — there's no separate hidden call-out charge added afterwards. For emergency callouts, the quote we give you on the phone is the price you pay.

Which areas do you cover?

We're based in Grays and cover Thurrock, wider Essex and much of East and South-East London daily — including Tilbury, Basildon, Romford, Barking and Dagenham. WhatsApp us your postcode for an instant yes or no.

Air Filter Replacement

A blocked air filter can reduce engine performance and increase fuel consumption. We replace dirty air filters with quality replacements that improve airflow, support cleaner combustion, enhance fuel efficiency, and help your engine perform at its best under all driving conditions.

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Battery Jump Start

A flat battery can happen without warning and prevent your vehicle from starting. Our mobile battery jump start service provides quick roadside assistance to safely restart your vehicle, diagnose battery-related issues, and advise whether a battery replacement may be required.

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Battery Replacement

A weak or failed battery can leave you stranded without warning. We provide fast mobile battery replacement at your home, workplace, or roadside, fitting a quality replacement battery that meets your vehicle's specifications and ensures reliable starting in all weather conditions.

Battery Testing

If your vehicle struggles to start or the battery warning light appears, we perform comprehensive battery testing to assess battery health, charging performance, and starting capacity. Accurate testing helps determine whether a replacement is required or if another electrical fault is present.

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Brake Bleeding

Air trapped inside the braking system can create a soft brake pedal and reduce braking efficiency. We professionally bleed the brake system to remove trapped air, restore firm pedal feel, and ensure consistent hydraulic pressure for safe braking performance.

Brake Disc Replacement

Brake discs wear over time and may become warped or heavily scored, reducing braking efficiency. We replace worn brake discs with quality components to restore smooth braking, reduce vibration, and ensure your vehicle remains safe and roadworthy.

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Brake Fluid Change

Brake fluid absorbs moisture over time, reducing braking performance and increasing the risk of corrosion. Our brake fluid replacement service removes old fluid, refills the system with fresh manufacturer-approved fluid, and helps maintain safe, consistent braking performance.

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Brake Pad Replacement

Worn brake pads reduce braking performance and can damage brake discs if left unchecked. Our mobile brake pad replacement service includes inspecting the braking system and fitting quality replacement pads to restore safe, responsive, and reliable braking performance.

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Brake Pipe Repair

Damaged or corroded brake pipes can reduce braking performance and compromise your vehicle's safety. Our mobile brake pipe repair service identifies leaks, corrosion, and damaged brake lines before carrying out professional repairs or replacements using high-quality components. We restore proper hydraulic pressure, ensure reliable braking performance, and help keep your vehicle safe and roadworthy.

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Coil Spring Replacement

Broken or weakened coil springs can affect your vehicle's ride height, handling, and overall safety. Our mobile coil spring replacement service includes a thorough suspension inspection and professional replacement using high-quality parts that meet manufacturer specifications. We restore proper suspension performance, improve driving comfort, enhance vehicle stability, and help ensure safe, reliable handling on all road conditions.

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Drive Belt Replacement

A worn or damaged drive belt can cause squealing noises, loss of power to essential components, or even leave your vehicle unable to operate correctly. Our mobile drive belt replacement service includes a thorough inspection of the belt and related pulleys before fitting a high-quality replacement that meets manufacturer specifications. We restore reliable operation of your engine accessories, improve performance, and help prevent unexpected breakdowns.

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Driveshaft Replacement

A damaged or worn driveshaft can cause vibrations, knocking noises, difficulty accelerating, and reduced drivetrain performance. Our mobile driveshaft replacement service includes a full inspection of the drivetrain to identify worn or faulty components before fitting a high-quality replacement. We restore smooth power delivery, improve vehicle stability, and help ensure safe, reliable performance on every journey.

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Engine Coolant Refill

Maintaining the correct coolant level is essential for preventing engine overheating and ensuring efficient performance. Our mobile engine coolant refill service checks the cooling system for leaks, tops up the coolant with the correct manufacturer-approved antifreeze mixture, and ensures your engine is properly protected against overheating, corrosion, and freezing. This simple maintenance service helps keep your vehicle running reliably in all driving conditions.

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Engine Diagnostics

We provide professional engine diagnostics to detect faults affecting performance, fuel efficiency, emissions, and reliability. Using manufacturer-level diagnostic tools, we identify fault codes, sensor issues, and engine management problems before recommending the right repair solution. Early diagnosis helps prevent more serious engine damage and reduces repair costs.

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Engine Fault Finding

Our mobile engine fault finding service accurately identifies the cause of engine performance issues, warning lights, unusual noises, poor starting, or loss of power. Using advanced diagnostic equipment and expert mechanical inspections, we pinpoint faults quickly and recommend the most effective repair solution. Early fault detection helps prevent costly engine damage, improves reliability, and gets your vehicle back on the road with confidence.

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Engine Mount Replacement

Worn or damaged engine mounts can cause excessive engine movement, vibrations, clunking noises, and reduced driving comfort. Our mobile engine mount replacement service includes a thorough inspection of the mounting system before fitting high-quality replacement mounts that meet manufacturer specifications. We restore engine stability, reduce vibrations, improve driving comfort, and help protect surrounding components from unnecessary wear.

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Engine Oil Change

Regular engine oil changes are essential for protecting your engine against wear and extending its lifespan. We replace old engine oil with premium-quality oil that meets manufacturer specifications and fit a new oil filter to maintain proper lubrication, improve performance, and support better fuel economy.

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Fuel Filter Replacement

We replace clogged or worn fuel filters to ensure clean fuel reaches your engine. A new fuel filter helps improve performance, protects injectors from contamination, maintains fuel efficiency, and reduces the risk of costly fuel system repairs caused by restricted fuel flow.

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Handbrake Cable Replacement

A worn, stretched, or seized handbrake cable can reduce parking brake effectiveness and compromise your vehicle's safety. Our mobile handbrake cable replacement service includes a full inspection of the parking brake system before fitting a high-quality replacement cable. We adjust and test the handbrake to ensure smooth operation, reliable holding power, and compliance with road safety and MOT standards.

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Head Gasket Replacement

A failed head gasket can cause coolant loss, overheating, white exhaust smoke, and poor engine performance. Our mechanics diagnose head gasket issues thoroughly and carry out professional replacement using quality parts, restoring engine sealing, reliability, and efficient operation.

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Home Car Repair Service

Our home car repair service brings professional mechanical repairs directly to your driveway. From routine maintenance to diagnostics and repairs, our mobile mechanics save you time by servicing your vehicle at home with convenient, reliable, and professional workmanship.

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Ignition Coil Replacement

A failing ignition coil can cause engine misfires, poor acceleration, reduced fuel efficiency, and warning lights. Our ignition coil replacement service restores reliable ignition performance by fitting quality replacement components that help your engine run smoothly and efficiently.

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Injector Leak-Off Pipe Replacement

Leaking or damaged injector leak-off pipes can lead to diesel fuel leaks, poor engine performance, difficult starting, and reduced fuel efficiency. Our mobile injector leak-off pipe replacement service includes inspecting the fuel return system, replacing worn or cracked leak-off pipes with high-quality components, and testing for leaks to ensure safe, efficient fuel circulation and reliable engine performance.

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Power Steering Pump Replacement

A failing power steering pump can cause heavy steering, whining noises, fluid leaks, and difficulty controlling your vehicle. Our mobile power steering pump replacement service includes a complete inspection of the steering system before fitting a high-quality replacement pump. We restore smooth steering assistance, improve driving comfort, and help ensure safe and reliable steering performance for everyday driving conditions.

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Service Light Reset

Our mobile service light reset helps clear maintenance reminders after your vehicle has received its required servicing. Using professional diagnostic equipment, we reset the service indicator correctly and check for any stored faults or warning messages. This ensures your dashboard displays accurate maintenance information, helps you keep track of future servicing intervals, and supports proper vehicle maintenance scheduling.

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Spark Plug Replacement

Worn spark plugs can lead to poor starting, engine misfires, rough idling, and increased fuel consumption. Our mobile mechanics replace faulty spark plugs with quality components that restore efficient combustion, improve engine performance, and help maintain reliable starting in all conditions.

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Suspension Inspection

Worn suspension components can affect handling, comfort, and tyre wear. Our suspension repair service identifies worn or damaged parts and restores your vehicle's stability, ride quality, and steering performance using reliable replacement components suited to your vehicle.

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Throttle Body Cleaning

Carbon deposits inside the throttle body can restrict airflow and cause rough idling, hesitation, and poor throttle response. Our throttle body cleaning service removes built-up deposits, restores smooth airflow, improves engine responsiveness, and helps maintain efficient engine performance.

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Throttle Body Replacement

A faulty throttle body can cause poor acceleration, rough idling, engine hesitation, and warning lights. Our mobile throttle body replacement service includes accurate diagnosis of throttle system faults and professional replacement with a high-quality component that meets manufacturer specifications. We restore proper airflow control, improve throttle response, enhance engine performance, and help ensure smooth and reliable vehicle operation.

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Timing Belt Replacement

A worn or damaged timing belt can cause serious engine damage if it fails unexpectedly. Our mobile timing belt replacement service follows manufacturer recommendations, replacing the belt and inspecting related components to ensure precise engine timing, reliable performance, and long-term engine protection.

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Wiring Repairs

Damaged or corroded wiring can cause intermittent electrical faults, warning lights, and component failures. Our wiring repair service locates damaged circuits, repairs or replaces affected wiring, and restores reliable electrical operation using safe, professional repair methods.

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24/7 Emergency Breakdown

24/7 emergency breakdown assistance

Flat battery, breakdown, or won't start? Our emergency mobile mechanics are on standby across the UK — average arrival in under 45 minutes.

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Fixed quote

Get your fixed quote today

Tell us the job — or just the symptoms — and get a fixed, itemised quote with same-day availability across Grays, Essex and London.

1 Call, WhatsApp or book online

2 Confirm your postcode and symptoms

3 Your mechanic arrives — job done on the spot

Mon–Sat 7am–9pm · Emergency line 24/7 · 12-month warranty on every job

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Join thousands of drivers who trust SW MECHANICS for hassle-free car care.

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