The short answer
An interior detail cleans everything inside the cabin and nothing outside it. A full detail does both halves. A Interior Detail starts at $149 and a Full Detail at $225, so the exterior half costs roughly $76 more when bought together.
The test is simple: walk out and look at the car in daylight. If the paint looks fine and the inside is the embarrassing part, buy the interior. If both look tired, the bundled full detail is cheaper than buying them separately later.
Side by side
| Interior detail | Full detail | |
|---|---|---|
| Vacuum, steam, panels, glass | Yes | Yes |
| Carpet and seat shampoo | Yes | Yes |
| Leather cleaned and conditioned | Yes | Yes |
| Hand wash and wheels | No | Yes |
| Decontamination and sealant | No | Yes, at Signature |
| Sedan | $149 | $225 |
| SUV / truck | $149 | $225 |
| XL / 3-row | $149 | $225 |
What each covers, and what each costs
The case for interior only
Interiors and exteriors wear out on completely different clocks. A garage-kept car with two kids and a dog needs the cabin reset three times as often as the paint. A car that lives outside under a tree is the reverse.
Buying interior only also concentrates the money where the work is hardest. Extraction, odor treatment, and pet-hair removal are the labor-heavy parts of this job, and they are the ones a cheaper package quietly drops.
Buy the half that needs it
Interior work starts at $149 for a reset and $149 for the deep version with shampoo and steam. Add the exterior any time; the tech confirms the final price before starting.
When the full detail is the better buy
Three cases: you are selling or turning in the car and a buyer or inspector will look at both halves, the paint feels gritty after a wash and needs decontamination, or it has simply been a year or more.
The bundle is also cheaper than buying the halves separately across two visits, because setup, travel, and teardown only happen once. If you know both halves are due within a couple of months, book them together.
Buying them separately across the year
Because the two halves wear at different rates, the cheapest sensible plan for most cars is not an annual full detail. It is a deep interior on its own schedule and exterior work on another.
- A family car with kids and pets: deep interior twice a year, maintenance exterior on a rhythm.
- A commuter that lives outside: exterior every two to three weeks, deep interior once a year.
- A garage-kept weekend car: exterior decontamination twice a year, interior as needed.
- A car about to be sold: buy the bundle, because a buyer looks at both halves on the same day.
This is an educational guide written to help DFW drivers budget and decide with confidence. It is not a binding quote. Your price is confirmed up front before any work begins, with no deposit.