July is here, which means fall is closer than it looks. For school facilities managers and building custodial teams, the weeks between summer programs and the first day of school are the best window you will get all year to do the kind of thorough, top-to-bottom cleaning that just is not possible when a building is fully occupied. If your team does not have a structured plan, that window closes fast.
This checklist walks through every major area of a school or commercial facility, what to clean, and how to approach it, so your building opens in the best possible condition. It is also a useful benchmark for any facility — office building, healthcare clinic, or manufacturer — that wants to use the summer slowdown to reset before a busy fall season.
Why Summer Is the Right Time to Deep Clean
When a building is in full use, cleaning staff focus on daily and weekly maintenance tasks: restocking supplies, emptying trash, mopping floors, and keeping restrooms in good working order. There is rarely time for the kind of work that addresses accumulated soil, scale, and wear that maintenance cleaning misses.
Summer gives you empty classrooms, unoccupied offices, and cleared corridors. That means you can strip and refinish floors without having to work around furniture and foot traffic. You can deep clean restrooms without rushing through occupied stalls. You can get into corners, under furniture, and above ceiling tiles without disrupting anyone.
The goal is not just a cleaner building. A well-executed summer deep clean protects floor finishes and carpet, extends the life of your equipment, and starts the school year with a healthier indoor environment for students and staff.
Classroom and Office Deep Cleaning
Classrooms and offices accumulate a year’s worth of dust, scuff marks, and surface grime by the time summer arrives. Here is how to work through these spaces systematically.
Start high and work down. Dust ceiling vents, light fixtures, and the tops of cabinets and shelving before cleaning any lower surfaces. If you dust after mopping, you are doing the work twice.
Wipe down all surfaces. Desks, chairs, windowsills, door frames, light switches, and outlet covers all need attention. Use a properly diluted disinfectant cleaner on hard surfaces, and pay particular attention to high-touch points such as door handles, drawer pulls, and shared equipment.
Clean windows and glass. Interior glass collects smudges and film over a school year. A streak-free glass cleaner makes a noticeable difference in how a room looks and feels on day one.
Address the floors. Depending on the floor type, this may involve stripping and refinishing resilient tile, scrubbing and recoating VCT, or extracting carpet. See the floor care section below for more details.
Clear and clean storage areas. Closets and storage rooms used by classroom staff accumulate clutter and spills. A thorough cleanout and wipe-down of shelving is worth the time.
Restroom Sanitation
Restrooms are the highest-priority area in any facility and the space where a thorough summer deep clean pays the biggest dividends. Daily maintenance cleaning keeps restrooms functional, but it does not address scale buildup, grout discoloration, or areas behind and under fixtures.
Descale all fixtures. Hard water scale builds up on faucets, toilet rims, urinal bowls, and drain surrounds over months of use. A descaling or bowl cleaner product designed for mineral deposit removal is essential here. Regular restroom cleaners will not cut through heavy scale.
Scrub grout lines. Tile grout in high-use restrooms discolors significantly over a year. A grout brush with a cementitious or alkaline cleaner restores appearance and removes the biological material that contributes to odors.
Clean behind and under fixtures. Behind toilets, under urinal screens, and around the base of floor-mounted fixtures are areas that daily cleaning often misses. These spots are significant contributors to restroom odor if they are not addressed regularly.
Inspect and clean floor drains. Floor drains in commercial restrooms collect soap scum, hair, and debris. A drain cleaner product formulated for maintenance rather than emergency clog removal is appropriate for summer drain cleaning. If drains are running slowly, address them now rather than in September.
Restock dispensers and inspect hardware. Check soap dispensers, paper towel dispensers, toilet paper holders, and hand dryer units for damage or wear. Replace anything that is not functioning reliably before the building fills back up.
Wipe down partitions, mirrors, and walls. Partition panels, mirror frames, and tile walls above wainscoting accumulate splatter and grime that is visible but often skipped during daily cleaning. A neutral all-purpose cleaner handles these surfaces effectively.
Floor Care
Floors are among the most visible indicators of a facility’s cleanliness and are also among the most time-intensive and equipment-dependent parts of a deep clean. Getting floors right during the summer sets up a much easier maintenance program through the school year.
Resilient tile (VCT and LVT). If your facility has vinyl composition tile or luxury vinyl tile, summer is the right time to strip the old finish and apply fresh coats. Stripping removes the built-up finish layers along with embedded soil and traffic patterns that mopping cannot address. After stripping and neutralizing, apply three to five coats of a commercial floor finish appropriate to your traffic level and sheen preference.
Hard floor scrubbing. Hallways, cafeteria floors, and other hard-surface areas benefit from auto-scrubber cleaning with an appropriate scrubbing pad. An auto-scrubber with the right detergent-and-pad combination removes the ground-in soil that mopping leaves behind. If you are renting or do not have access to an auto-scrubber, this is worth discussing with your LBC sales rep.
Carpet extraction. Carpeted classrooms, offices, corridors, and common areas should be hot-water extracted at least once a year. Summer is the ideal time because the building is unoccupied and carpets can dry fully before they see foot traffic. Extraction removes embedded soil and allergens that vacuuming cannot reach and significantly extends carpet life compared to surface-only maintenance.
Gym and multipurpose floors. Wood gym floors need different care. If your school has a gymnasium, summer is the time to screen and recoat or refinish the floor before fall sports programs begin. Consult the floor manufacturer’s recommendations and make sure the product used is appropriate for the specific finish system in place.
Common Areas: Cafeterias, Hallways, and Lobbies
High-traffic common areas accumulate some of the heaviest soiling in any school or facility. After floor care, these areas typically need:
Wall washing from the floor to roughly shoulder height, where contact, soil, and scuff marks concentrate. A general-purpose cleaner or wall washing solution applied with a mop or sponge mop handles this efficiently.
Cleaning under and behind furniture that does not move during the year. Cafeteria tables and benches, lobby seating, and hallway benches often have years of soil underneath them.
Cleaning interior glass panels and lobby windows that face high-traffic areas.
Inspecting and cleaning floor mats, entry systems, and grates. Entry systems trap soil that would otherwise migrate into the building, but they need to be cleaned periodically to remain effective.
High-Touch Surface Disinfection
After thorough cleaning, a systematic disinfection of high-touch surfaces throughout the building is appropriate before occupancy. The surfaces to prioritize include door handles and push bars, light switches and electrical plates, handrails on stairs and ramps, elevator buttons, shared equipment controls, and any surface that many people regularly contact.
Use a disinfectant product registered as effective against the pathogens relevant to your environment, and follow the label directions for contact time. Disinfectants do not work properly on surfaces that have not been cleaned first, so cleaning before disinfecting is not optional.
Common Mistakes to Avoid During a Summer Deep Clean
Skipping the top-down sequence. Cleaning the floors before dusting the ceiling vents and light fixtures means you will be cleaning the floors twice.
Using the wrong floor finish for your traffic level. Not all floor finishes are the same. A low-solids finish applied in a high-traffic hallway will look worn within weeks. Your LBC rep can help match the right product to your specific floor type and traffic conditions.
Neglecting drain maintenance. Slow drains and drain odors are among the first complaints facilities receive when a building reopens. Address drains before they are a problem rather than after.
Running out of supplies before the job is complete. A summer deep clean uses substantially more product than a normal maintenance week. Order what you need in advance so your team is not waiting on supplies mid-project.
Not inspecting equipment before the season starts. Mops, buckets, auto-scrubbers, vacuums, and dispensers that have been in service all year may need maintenance or replacement. Starting the school year with equipment that fails is avoidable.
Frequently Asked Questions
How far in advance should we start a summer deep clean? For a typical school building, plan to start four to six weeks before the first day of school. Larger facilities or campuses with significant floor refinishing work may need more lead time. Starting in early July gives most facilities enough runway without cutting it close.
Do we need to strip floor finish every year? Not necessarily. If the finish has been properly maintained and has not accumulated excessive layers, scrubbing and recoating may be sufficient. A visual inspection and a finish thickness check will tell you which approach is appropriate. Your LBC sales rep can help you evaluate your floors if you are unsure.
What is the difference between cleaning and disinfecting? Cleaning removes visible soil and contamination from surfaces using detergent and mechanical action. Disinfecting kills pathogens on a surface using a registered chemical disinfectant. Both steps are necessary — disinfectants do not work effectively on soiled surfaces, and cleaning alone does not kill pathogens. In schools, both steps matter.
Can we do carpet extraction ourselves, or do we need to hire a contractor? Both are workable approaches. If your facility has a carpet extractor and trained staff, in-house extraction is cost-effective. If you do not have the equipment or staffing capacity, a professional cleaning contractor may be the right call for carpet extraction, specifically, while your team handles the rest of the deep clean.
What supplies should we stock up on before the school year starts? At minimum, make sure you have adequate floor finish and stripper if refinishing, restroom disinfectants and descalers, glass cleaner, neutral floor cleaner for daily maintenance, trash can liners, paper products for all restroom dispensers, and any PPE your staff needs for chemical handling. Your LBC sales rep can put together a school-year opening order based on your building size and usage.
Start Your Back-to-School Deep Clean Now
A well-planned summer deep clean is one of the highest-return investments a facilities team can make. The work done in July and early August pays dividends every month of the school year in floor appearance, indoor air quality, restroom function, and the overall condition of the building your staff, students, and visitors walk into every day.
The earlier you start planning, the smoother the process goes. If your team is not sure where to begin, or if you need help identifying the right products for stripping, refinishing, disinfecting, or carpet care, Leonard Brush & Chemical is here to help. We have been supplying Louisville-area schools and facilities with the right products and practical guidance since 1879, and we know what it takes to get a building ready for fall.
Call us at 502-585-2381 or visit leonardbrushandchemical.com to talk to a product specialist and put together your back-to-school supply order.
