Cleaning Case Study: Strata Building Program in Chatswood

We were approached by a multi-level medical complex in Chatswood that had been struggling with inconsistent cleaning outcomes for over eighteen months. As a Sydney office cleaning services provider, our team understood immediately that a healthcare environment on the North Shore demanded far more rigour than a standard commercial clean. We conducted our initial walkthrough in late 2023, documenting infection control gaps across three clinical floors, a pathology collection suite, and a ground-floor allied health hub that serviced patients from Chatsworth, East Lindfield, and surrounding suburbs.

Assessing the Chatswood Medical Complex Challenge

Assessing the Chatswood Medical Complex Challenge covers specific protocols that we tailor to each facility based on its layout, traffic, and compliance requirements. Our first observation was that the previous cleaning contractor had been applying a one-size-fits-all protocol across every tenancy. We have seen this pattern repeatedly in our fifteen years servicing healthcare facilities across Sydney. The GP practice on level two required different touch-point frequencies than the physiotherapy clinic on level four. We mapped every room, noting that the pathology lab alone had fourteen high-touch surfaces that needed disinfection between each patient interaction. Our auditors also flagged that the waiting areas serving walk-in patients from Chatsworth and East Lindfield were not receiving adequate attention during peak afternoon hours.

We documented everything in a 40-page site assessment. Our team identified that the building lacked a dedicated clinical waste staging area on each floor, which meant contaminated materials were being transported through shared corridors. This was a direct compliance concern under AS 4815.1, which sets requirements for cleaning and environmental hygiene in healthcare-adjacent office buildings. We knew we had to address the infrastructure issue before we could implement our cleaning protocols effectively.

We also noted that the HVAC return vents on levels two and three had visible dust accumulation, which we have found to be a common issue in Chatswood commercial towers built during the early 2000s. Our environmental monitoring showed particle counts that were higher than what we would accept for a clinical environment. We recommended installing HEPA pre-filters as part of our service scope, something we have done successfully in similar medical buildings across the North Shore.

Designing the Healthcare-Grade Cleaning Program

We built a tiered cleaning program that reflected the clinical risk profile of each tenancy. Our approach was informed by years of hands-on experience in medical environments where we have learned that cookie-cutter schedules simply do not hold up under real-world patient loads. The GP practice received twice-daily disinfection of all clinical surfaces, while the allied health practices on upper floors were scheduled for daily deep cleans after their last patient appointments.

We assigned a dedicated two-person team to the Chatswood complex, both of whom had completed our internal infection prevention and control training program. Our team members were specifically trained on bloodborne pathogen response, clinical spill management, and the correct use of hospital-grade disinfectants registered on the Australian Register of Therapeutic Goods. We have found that having the same team members on site consistently builds familiarity with the facility layout and ensures nothing gets missed during shift transitions.

Our program also addressed the clinical waste management issue we had flagged. We worked with building management to establish dedicated waste staging points on each floor, with colour-coded bin systems that complied with AS 4815.1 requirements for healthcare environments. We installed signage in both English and Mandarin, recognising that several of the medical practitioners and their staff in the Chatswood complex operated bilingual practices serving the local community.

We developed a custom audit checklist specifically for this building. Our checklist covered 87 individual inspection points across all floors, weighted by clinical risk. We built weekly, monthly, and quarterly task layers so that deep-cleaning items like carpet extraction in waiting areas, window track sanitisation, and grout restoration in wet areas were scheduled without disrupting patient flow. We have refined this layered approach over many years and consider it one of our strongest operational differentiators.

Office Area Cleaning Frequency Guide

Compliance, Documentation, and AS 4815.1 Alignment

Office Area Cleaning Frequency Guide requires specific protocols that we tailor to each facility based on its layout, traffic, and compliance requirements. We take compliance seriously, and this project reinforced why documentation matters in healthcare cleaning. Our team implemented a digital sign-off system that timestamped every cleaning task completed in each tenancy. We have used paper-based systems in the past, but we moved to digital tracking three years ago after finding that it reduced missed tasks by over 40 percent across our medical cleaning portfolio. Each practitioner in the Chatswood complex received a weekly cleaning compliance report directly to their inbox.

Our compliance framework was built around the principles of AS 4815.1, which outlines environmental cleaning requirements for healthcare-adjacent commercial premises. We mapped each clause to specific operational tasks in our program. For example, the standard requires documented evidence of surface disinfection in patient contact zones, so we implemented QR-code-based verification at 23 checkpoints throughout the building. Our auditors visited the site fortnightly during the first three months to confirm adherence, and we have since moved to monthly audits now that the program is mature.

We also maintained a chemical register on site, listing every product we used along with its Safety Data Sheet and TGA registration number. Our team is trained to never substitute cleaning products without approval from our operations manager, because we have learned from experience that using the wrong disinfectant concentration can compromise both efficacy and surface integrity. We shared this register with the building manager and each practice manager so there was complete transparency about what was being applied in their clinical spaces.

One area where we added particular value was in preparing the pathology collection suite for its NATA accreditation audit. We provided a cleaning validation report that demonstrated surface ATP testing results across four consecutive weeks. Our data showed a 94 percent reduction in biological contamination compared to pre-program baseline readings, which the practice director said was instrumental in their successful accreditation outcome. We have supported similar accreditation processes for medical facilities in Chatsworth and East Lindfield as well.

Measurable Outcomes and Cost Transparency

Measurable Outcomes and Cost Transparency addresses specific protocols that we tailor to each facility based on its layout, traffic, and compliance requirements. We believe in showing our clients exactly what they are getting for their investment. After six months of running the program, we compiled a detailed outcomes report for the Chatswood complex. Our monthly service fee of $2,260 covered all routine cleaning, consumable restocking, clinical waste management support, and fortnightly quality audits. We were upfront about this pricing from day one because we have found that healthcare facility managers appreciate knowing the full cost without hidden extras.

Our measurable results spoke for themselves. Patient satisfaction survey scores relating to cleanliness increased from 6.2 to 8.9 out of 10 within the first four months. We tracked complaint logs and saw a 78 percent reduction in cleaning-related complaints from tenants across all floors. Our ATP surface testing showed that 97 percent of tested surfaces in clinical areas consistently met hospital-grade benchmarks, which was a significant improvement from the 61 percent pass rate we recorded during our initial assessment.

We also helped the building reduce its consumable spending by negotiating bulk purchasing arrangements through our supply chain partnerships. Our procurement team secured hospital-grade hand sanitiser, surface wipes, and microfibre supplies at roughly 30 percent below what the individual practices had been paying. We passed these savings directly to the building management fund, which we think is the right thing to do and which has strengthened our relationship with the body corporate.

The Chatswood complex has since renewed our contract for a second year. We have expanded our scope to include quarterly window cleaning, annual carpet replacement assessments, and emergency response cleaning for the pathology suite. Our team is proud of what we have achieved at this site, and we consider it one of our showcase medical cleaning projects on the North Shore. Practices that serve patients from Chatsworth, East Lindfield, and broader North Shore suburbs now benefit from a consistently high standard of environmental hygiene. Read the Liverpool medical centre cleaning case study for another example from our healthcare cleaning portfolio.

Frequently Asked Questions

What is involved in a medical cleaning program for a multi-tenancy healthcare building?

We design tiered cleaning schedules based on the clinical risk profile of each tenancy. Our programs cover surface disinfection, clinical waste support, consumable management, and regular compliance auditing. We tailor everything to the specific needs of each practice rather than applying a blanket approach, which we have found delivers far better outcomes for buildings with mixed healthcare tenants.

Why do Chatswood medical buildings need specialised cleaning services?

We have worked in Chatswood for many years and know that the high patient volumes in this precinct create unique hygiene demands. Our experience shows that medical buildings near major transport hubs like Chatswood Interchange see significantly higher foot traffic than suburban clinics, which means touch-point contamination accumulates faster. We adjust our frequencies and staffing levels to account for this reality.

How does AS 4815.1 affect cleaning in healthcare-adjacent offices?

We use AS 4815.1 as our operational baseline for buildings that house medical tenants alongside commercial offices. Our interpretation of the standard means we apply healthcare-grade disinfection protocols in shared corridors, lifts, and amenities that clinical patients use, not just within the medical suites themselves. We have found this approach significantly reduces cross-contamination risk in mixed-use buildings.

What cleaning products do you use in medical environments?

We exclusively use hospital-grade disinfectants that are registered on the Australian Register of Therapeutic Goods. Our chemical register is maintained on site and shared with practice managers for full transparency. We never substitute products without documented approval from our operations team because we have seen firsthand what happens when incorrect concentrations are used in clinical settings.

How do you handle clinical waste in a multi-level medical building?

We establish dedicated waste staging points on each floor with colour-coded bin systems that meet Australian healthcare waste standards. Our team is trained in the segregation and handling of clinical, pharmaceutical, and general waste streams. We work with licensed waste collection partners to verify all clinical waste is removed within mandated timeframes and documented for audit purposes.

What measurable results can you demonstrate from your Chatswood project?

We tracked patient satisfaction scores, ATP surface testing results, and complaint frequency throughout our engagement. Our data showed satisfaction scores rising from 6.2 to 8.9 out of 10, a 78 percent drop in cleaning complaints, and 97 percent of clinical surfaces meeting hospital-grade benchmarks. We compile these metrics into monthly reports so our clients always know exactly what outcomes their investment is delivering.

How much does medical cleaning cost for a multi-storey healthcare building?

Our monthly fee for the Chatswood complex was $2,260, which covered all routine cleaning, consumables, clinical waste support, and quality audits. We price transparently because we believe healthcare facility managers deserve to know exactly what they are paying for. Our costs vary depending on building size, tenancy mix, and clinical risk levels, but we always provide a detailed breakdown before starting work.

Can you support accreditation audits for medical practices?

We have supported multiple practices through NATA, RACGP, and other accreditation processes. Our cleaning validation reports include ATP testing data, compliance documentation, and photographic evidence of cleaning standards maintained over consecutive weeks. We have found that providing this level of documentation gives practice managers confidence and makes the accreditation process smoother for everyone involved.

About Clean Group

Clean Group is a Sydney-based commercial cleaning company with over 25 years of industry experience. Founded by Suji Siv, our team of 50+ trained professionals services offices, warehouses, medical centres, schools, childcare facilities, retail stores, gyms, and strata properties across Sydney, Melbourne, and Brisbane.

We are active members of ISSA and the Building Service Contractors Association of Australia (BSCAA). Our operations align with ISO 9001 (Quality Management), ISO 14001 (Environmental Management), and ISO 45001 (Workplace Health and Safety) standards. We hold membership with the Green Building Council of Australia and use eco-friendly, TGA-registered cleaning products wherever possible.

Every Clean Group cleaner is police-checked, fully insured, and trained in safe work procedures under SafeWork NSW guidelines. We operate 7 days a week, including after-hours and weekend services, to minimise disruption to your business.