Seemor

Jeffrey's HamburgersB+

42 S B St, San Mateo, CA 94401 · Hamburger restaurant, Restaurant · San Mateo

Classic downtown diner doing thick, customizable burgers, crisp fries, and big milkshakes at fair prices; go for comfort-food satisfaction over culinary fireworks.

Our take

Jeffrey's Hamburgers delivers solid neighborhood dining through excellent burger quality and quick, friendly service, earning its grade B+ standing. Consistency shows occasional variation in burger doneness and bun quality, while the nostalgic retro setting provides comfortable appeal without destination-level distinction. Strong value and loyal local following make this a reliable casual choice for classic American comfort food, though it lacks the refinement or innovation to reach higher grades.

One caveat: Occasional undercooked or overcooked patties; ask for specific doneness

Standout dishes

What people love

Opening Hours

Monday11:00–20:00 Tuesday11:00–20:00 Wednesday11:00–20:00 Thursday11:00–20:00 Friday11:00–20:00 Saturday11:00–20:00 Sunday11:00–20:00
See full Restaurant DNA analysis — grade reasoning, occasion fit, what to order & more →