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24-Hour Car Washes in Somersworth, NH

3 of the 4 car washes we list in Somersworth have 24-hour access.

Night-shift workers and road-trippers wash cars at 2 a.m. too. Each listing here has round-the-clock access confirmed individually — mostly self-serve bays and unattended automatics.

  1. Lilac Car Wash

    413 High St, Somersworth, NH 03878-1009

    24/7

    TouchlessSelf-serve baysOpen 24 hoursFree vacuumsUnlimited plans
    Call Website Directions

  2. Black Dog Car Wash

    Somersworth, NH 03878

    24/7

    TouchlessOpen 24 hoursFree vacuums
    Call Website Directions

  3. Lilac Car Wash

    4 Enterprise Dr, Somersworth, NH 03878-1584

    Open 24 hoursUnlimited plans
    Call Website Directions
24-hour usually means the bays, not the staff. The office and detailing side keep business hours; the wash itself runs unattended. If the machine eats your payment at night, the refund happens in the morning.

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Good to know

Are 24-hour car washes really open all night?

The self-serve bays and automatic tunnels usually are — they run unattended. Staffed services like detailing or hand-drying keep daytime hours even at locations advertised as 24/7.