Mobile Oil Leak, Gasket & Seal Repair in DC, Maryland & Virginia

My Halo Auto provides mobile oil leak, gasket and seal repair across DC, Maryland and Virginia. An ASE-certified technician diagnoses oil leaks and replaces timing cover, valve cover and intake manifold gaskets and rear main seals, done right the first time.

5.0 on Google · ASE certified · Mon–Sat 7AM–7PM

Old timing cover gasket held next to a new timing cover gasket set
Old timing cover gasket next to the new set

What Does Mobile Gasket & Seal Repair Include?

Oil leak diagnosis and repair. Timing cover, valve cover, intake manifold, and rear main seal replacement.

  • Timing cover gasket

    Seals the timing cover to the front of the engine. The old gasket is removed and the cover is refitted with a new gasket, torqued to manufacturer specification.

  • Valve cover gasket

    Seals the valve cover to the top of the cylinder head. Replaced and torqued to manufacturer specification.

  • Intake manifold gasket

    Seals the intake manifold to the cylinder head. Replaced and torqued to manufacturer specification.

  • Rear main seal replacement

    Seals the rear of the crankshaft where it leaves the engine. The worn seal is replaced and surrounding fasteners are torqued to spec.

Worn timing cover gasket with old sealant laid out for comparison
Gasket wear comparison

Can Gasket & Seal Repair Be Done at My Location?

Most gasket and seal work is done on-site when there's adequate, safe workspace. Whether a specific job, such as a rear main seal, can be done at your location depends on the job and the workspace. Describe it when you request a quote and we'll work out the best arrangement.

Available across Washington, DC (all four quadrants), Maryland (Silver Spring, Bethesda, Rockville, College Park, Bowie, Laurel and more) and Northern Virginia (Arlington, Alexandria, Fairfax, Reston, Tysons, Manassas and more).

Mobile service requires adequate workspace and a suitable area to work safely, such as a flat driveway, parking lot or garage.*

Common Signs You May Need Gasket or Seal Repair

These are common signs, not a diagnosis. The cause is confirmed with a hands-on diagnosis before any repair is recommended.

  • Oil spots where you park
  • Burning-oil smell after driving
  • Oil on the outside of the engine
  • Low oil level between changes
  • Smoke from the engine bay

Not sure? Describe what you're noticing when you request a quote.

Worn timing cover gasket with old sealant

Photos from Our Work

Worn timing cover gasket with old sealant
Worn timing cover gasket
Timing cover with the front main seal bore exposed
Front main seal replacement
New and old water pump gaskets laid side by side on an engine
Water pump gaskets, old vs new

Gasket and seal repair is available for personal vehicles and for company fleets: work vans, pickups, sedans and SUVs, serviced at your lot, yard or job site.

Fleet services

Gasket & Seal Repair FAQ

Still have a question? Call or text (571) 969-4256.

Last updated: October 2026

Yes. We diagnose oil leaks on-site and repair the leaking gasket or seal, including timing cover, valve cover and intake manifold gaskets, when there's adequate, safe workspace.

Timing cover gaskets, valve cover gaskets, intake manifold gaskets and rear main seals.

It depends on the vehicle and the workspace available. Describe the job when you request a quote and we'll work out the best arrangement.

Yes. Every fastener is torqued to the exact manufacturer specification using calibrated torque wrenches, following OEM repair procedures.

Get an Oil Leak Quote

Call or text (571) 969-4256 or use the form. Tell us your vehicle's year, make and model and what's going on.

Stranded or need urgent repair? Call us now.

Call or text

(571) 969-4256

*Mobile Service Disclaimer: Mobile service requires adequate workspace and a suitable area for the technician to safely perform repairs (e.g., a flat driveway, parking lot, or garage). Engine swaps, exhaust work, and other major services cannot be performed as mobile service and require a consultation. We do not offer bodywork, performance upgrades, or coilover installation. Exhaust and custom fabrication services require a prior consultation. My Halo Auto specializes in automotive maintenance and repair, not performance enhancement.

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