Deep Cleaning Checklist: What to Expect

Deep cleaning goes beyond the regular surface clean. It covers every area of a facility, including the hard-to-reach places and the surfaces that are not cleaned day to day. Most Adelaide workplaces book one quarterly or twice a year, and the easiest way to judge a quote is to compare it against a written checklist. This is what a professional deep clean of an office or commercial space should include, how the day runs, and how to do a smaller one yourself.

Deep Cleaning Checklist by Area

Entry, reception and corridors

• Dust and wipe skirting boards, door frames, ledges, signage and the tops of partitions.
• Clean entry glass, both sides, including frames and tracks.
• Vacuum and extract entry mats; spot clean walls at hand height.
• Clean light fittings, switches, air vents and return grilles.

Workstations and meeting rooms

• Dust and wipe desks, monitors stands, phones, chair bases and arms.
• Vacuum under desks, behind pedestals and along cable trays.
• Clean whiteboards, TV screens (dry method) and glass partitions.
• Wipe door handles, push plates, switches and remote controls with disinfectant.

Kitchen and break room

• Clean inside and outside the fridge, microwave, oven, dishwasher and sandwich press.
• Degrease splashbacks, range hood filters and the tops of cupboards.
• Clean inside cupboards and drawers; descale the sink, taps and boiling water unit.
• Empty, wash and sanitise bins, inside and out.
• Scrub the floor, including under and behind appliances where they can be moved.

Bathrooms and change rooms

• Descale toilets, urinals, taps and shower heads; clean behind and under the pans.
• Scrub tile and grout; treat soap scum and mould on silicone.
• Clean mirrors, vanities, dispensers, partitions and door hardware.
• Clean exhaust fan covers and drains; machine scrub the floor.

Floors throughout

• Hot water extraction for carpets, with pre-treatment of stains and traffic lanes.
• Machine scrub hard floors; strip and reseal vinyl where the finish has worn.
• Edge vacuum along walls and in corners where upright vacuums do not reach.

High and hidden surfaces

• High dust ceiling fans, pendant lights, exposed ducting, pipes and the tops of cabinets.
• Clean air conditioning vents, grilles and accessible filters.
• Dust and vacuum upholstery, blinds and curtains.
• Clean internal windows and sills.

Services Often Added to a Deep Clean

• Carpet cleaning and upholstery extraction
• Tile and grout cleaning and sealing
• Hard floor stripping and sealing
• Window cleaning, internal and accessible external
• Kitchen exhaust canopy and filter cleaning
• Pressure cleaning of entries, paths and bin areas

Preparing the Space

A deep clean goes faster and further when the site is ready. Let staff know the date and ask them to clear desks and benches. Lock away valuables and confidential paperwork. Confirm access, alarm codes and after-hours arrangements. Flag anything fragile or anything that must not be moved. Agree in writing which areas are in scope so nothing is assumed.

What to Expect on the Day

The team arrives, walks the site against the checklist and confirms the order of work, usually high-traffic and wet areas first. Work runs top to bottom in each room so dust does not fall on finished surfaces. Expect several hours for a small office and a full day or more for a larger floor. Specialised methods such as steam, hot water extraction and machine scrubbing are brought in for the surfaces that need them. At the end there is a walk-through with you, and you should receive a record of what was done, with photos.

How to Deep Clean an Office Yourself

For a small office you can do a reasonable deep clean in a day with the right supplies.

• Supplies: all-purpose cleaner, glass cleaner, disinfectant, toilet cleaner, floor cleaner, degreaser, microfibre cloths, a mop and bucket, a vacuum with a HEPA filter, a step ladder, gloves and bin bags.
• Clear the clutter. Remove personal items from desks and benches so every surface is reachable.
• Dust from the top down. Fans and light fittings first, then walls, furniture and equipment. Use microfibre so you lift dust rather than move it.
• Glass. Clean windows, mirrors and partitions with glass cleaner and a squeegee or dry microfibre, frames included.
• Bathrooms. Toilet bowl first with the cleaner dwelling while you do the sink, mirror and dispensers. Mop last.
• Kitchen. Degrease the splashback and hood, clean inside the microwave and oven, wipe out the fridge, then the floor.
• Floors. Vacuum carpets slowly in two directions, mop hard floors, and get under desks and furniture.
• Furniture. Wipe chair arms and bases, and vacuum upholstery with the brush tool.

Wear gloves and eye protection, keep the area ventilated, work in good light, and read the label for dwell times. Once a year is a sensible minimum; busy or shared offices are better at twice a year. Where carpets need extraction or floors need resealing, that is the point to bring in a contractor.

Eco-Friendly Deep Cleaning Practices

A deep clean does not need harsh chemistry to work. The practices below reduce the chemical, water and waste load without weakening the result.

• Start with a general clean so loose dust and debris are gone before any product goes on.
• Choose products with a recognised third-party environmental certification, and use them at the labelled dilution. Over-dosing does not clean better.
• Use microfibre cloths and flat mops. They lift soil with less product and can be laundered and reused.
• Use steam for tile, grout, taps and kitchen stainless where it suits. It sanitises with heat and no chemical residue.
• Vacuum with a HEPA filter so fine dust and allergens are captured rather than recirculated.
• Work top to bottom so surfaces are cleaned once.
• Keep disinfectant for high-touch points and bathrooms, where it is needed, rather than every surface.
• Recycle packaging, use concentrates to cut plastic, and sort waste as you go.
• Ask staff to report spills straight away. A fresh spill is a wipe; a week-old one is a chemical job.

Benefits of a Regular Deep Clean

• Hygiene. Lower allergen and bacteria levels, better air, fewer sick days.
• Asset life. Carpets, floors and furniture last longer when grit and grime are removed before they wear the surface.
• Fire safety. Dust and grease behind appliances and in exhausts is fuel; removing it lowers the risk.
• Presentation. Clients and staff notice the difference, and a well-kept building holds its value.

Choosing a Deep Cleaning Service

• Check they offer the specific services you need, such as carpet extraction or strip and seal.
• Ask for experience with your type of site, and for recent references or photos of similar work.
• Confirm insurance and safe work procedures.
• Compare quotes on the same written checklist so you are comparing like with like.

For what the work typically costs across Adelaide, read how much a deep clean should cost.