01Wash stations in a slab-on-grade unit
Every bowl needs a drain, and in a slab-on-grade unit the sanitary stub is almost never where the shampoo area should be. The cheap answer is a raised platform with a step your staff and clients trip on for a decade. We core and trench the slab and run new drainage instead, so the floor stays level and the layout stays where you drew it. Hot-water capacity gets sized against the number of bowls running at once, not guessed.
02Real exhaust at the colour bar
Base-building HVAC was never designed for ammonia, peroxide, acetone or acrylic dust. We give the colour bar — and any nail or lash station — dedicated exhaust with make-up air to balance it, so the smell leaves the building instead of drifting to the front desk. Owners who have opened a second location almost always ask for this first, because they lived without it in the first one.
03Wet-area finishes that survive year three
Water goes everywhere in a salon: under the bowls, around the pedicure chairs, out of the treatment rooms. That means sheet flooring with heat-welded seams and coved bases, proper waterproofing behind tile, moisture-resistant board in wet walls, and millwork built on a substrate that does not swell. Standard laminate on MDF at a wash station is a two-year finish sold as a ten-year one.
04Two lighting systems, not one
Colour work needs high-CRI, neutral light at the chair so what your stylist mixes is what the client sees outside in daylight. The room needs warmer, lower, more flattering light so people like their reflection and stay longer. Those are different fixtures on different circuits, dimmed separately. Most salons install one system and spend years apologising for it.
05Treatment rooms, music and the shared wall
A facial room beside a blow-dry floor needs partitions to the deck, insulation, a solid-core door with seals, and a ventilation path that does not carry conversation between rooms. The demising wall you share with the neighbouring unit matters too — a spin studio or a restaurant next door changes what we build. Sound gets designed, not discovered on opening weekend.
06The electrical service you inherited
Dryers, steamers, pedicure chairs, laundry, water heaters, a colour bar and a full lighting package add up fast. We total the connected load during design and find out what the unit’s existing service can carry. If it needs an upgrade, that is a utility timeline, not a construction one — and it is far better to learn it in week one than in week ten.