In-House vs Contracted Building Services: A Decision Framework

The in house vs contracted services decision gets made badly because it is usually framed as a cost question. It is not. It is a question about who absorbs volatility — in labour supply, in demand, in supervision — and how much control you need over how the work is done.

A building with predictable demand, stable staffing and a manager who can supervise directly can self-deliver successfully. A portfolio with variable occupancy, tight labour markets and no on-site supervisor usually should not, whatever the spreadsheet comparison suggests.

Key takeaways

• Compare total cost of ownership, not hourly rates: supervision, equipment, chemicals, training, cover for absence, and administration all land somewhere.
• Score the decision on four axes — cost, control, flexibility, risk — before you look at a quote.
• Self-delivery needs management capacity: a supervisor, cover arrangements for absence, and a training pipeline, or quality collapses quietly.
• Contracted service buys scalability and transferred headcount risk, but only if the specification and audit process are strong enough to hold the standard.
• Hybrid delivery is often the honest answer: contract the routine work, self-deliver the small responsive tasks.
• Decide on evidence, then re-test the decision every 24 months or when occupancy changes by more than 15%.

What does in house vs contracted services actually change?

It changes who employs the labour, and therefore who carries the risk. In-house means your organisation recruits, trains, schedules, covers absence and holds the safety obligations that go with employing people. Contracted means a supplier carries those obligations, priced into the contract. Everything else — specification, frequency, standard, inspection — stays your responsibility either way. Contracting out the work does not contract out the accountability to the tenants, the owner, or the regulator.

What genuinely differs:

• Cost structure. In-house costs are largely fixed and visible. Contract costs are largely fixed and bundled.
• Flexibility. Adjusting in-house labour means hiring and notice. Adjusting a contract means a variation and a negotiation.
• Control and risk. In-house, you set the method and see the effort. Contracted, you set the outcome and see the result — while employment liability, labour availability and turnover sit with whoever holds the payroll.

How do you compare cost fairly?

Compare total cost of ownership over a 24-month horizon on the same scope. The most common error is putting an all-in contract price against a wage rate and declaring the wage rate cheaper.

Include, on both sides:

Two lines change the answer more often than any other: supervision and cover for absence. A self-delivered service without a supervisor tends to look cheap in year one and expensive by year two, because unsupervised work drifts and rework consumes the saving.

What does a scored decision framework look like?

Score each option from 1 to 5 on cost, control, flexibility and risk, weight the axes for your situation, and compare the totals. Writing down the weights before scoring is what stops the exercise from confirming a decision already made.

Then apply pass/fail tests that scores cannot override:

• Can you recruit and retain the required labour in your market within 60 days?
• Do you have supervision capacity of at least 10–15% of a full-time role per site?
• Does the scope require specialist certification, equipment or regulated work?
• Do tenants or the owner require a single accountable supplier with insurance on file?

A "no" on the recruitment or supervision question is usually decisive regardless of the cost score.

Which tasks should stay in-house?

Keep in-house the tasks that are small, unpredictable, high-frequency and dependent on local knowledge. Contract the work that is large, scheduled, equipment-heavy or specialist.

Reasonable defaults:

• Self-deliver: spot cleaning between service visits, spill response during business hours, dock tidiness, tenant request triage, and inspection.
• Contract: periodic floor care, carpet extraction, high dusting, window cleaning, and exterior sweeping.
• Never self-deliver without certification: electrical work, confined space entry, asbestos, pest treatment, and clinical waste.

Scope note: The three "never" categories above sit outside a property manager's remit. Record the condition, raise a work request, and commission a qualified provider.

Inspection is the one activity that should never be contracted to the same party doing the work. Independent verification is the entire point — see how to audit a vendor's work without doing their job.

How do you keep quality consistent either way?

Keep quality consistent by writing the standard down and inspecting against it, whoever holds the payroll. The delivery model changes who does the work, not what "clean" means at a given APPA level.

For both models you need an item list per area type with critical items flagged, a scored inspection on a fixed cycle of monthly or better, photos attached to items, and a deficiency list tracked to closure with an owner and a date.

That is where the self-delivery illusion usually breaks. Contracted service at least arrives with a supervisor and a monthly report. Self-delivered service often has neither, so the first sign of decline is a tenant complaint.

The APPA cleanliness levels explained gives you a shared scale for both models, which matters most during a transition year when one site is in-house and another contracted. CCOHS publishes the sanitation and chemical-handling practices your standard should reflect, including its guidance for cleaning staff on sanitation and infection control.

When does switching model make sense?

Switch models when one of four triggers fires: sustained performance failure, a cost gap above 15%, a supervision gap you cannot fill, or a change in occupancy that alters demand by more than 15%. A cost trigger means a verified total-cost gap over 24 months on identical scope; a performance trigger means two or more quarters below the pass threshold with no credible recovery plan.

Any switch costs more than the spreadsheet suggests. Budget for the transition: a mobilisation period of 30–60 days, a documented handover of keys, codes, equipment and chemical records, and a dual-running period of at least two weeks. The vendor offboarding and handover process covers the exit side; run it in reverse when bringing a service in-house.

What does the first 90 days look like after a change?

Treat the first 90 days as a controlled transition with weekly checks, regardless of direction. Standards slip in transitions because nobody owns the interim period.

• Days 1–14: mobilisation, access, equipment and chemical register. Keep a signed handover schedule and a key and code register.
• Days 15–30: baseline inspections in every area type, scored and photographed.
• Days 31–90: correct the specification gaps the baseline exposed, then stabilise the cycle — three inspection reports and a current open-items list by day 90.

Hold the same inspection standard through the transition that you intend to hold afterwards. Changing the standard mid-move makes the before-and-after comparison meaningless, and you will need that comparison at the next decision point.

Frequently asked questions

Is in-house always cheaper than contracting?

No. In-house often shows a lower direct wage line and a higher total cost once supervision, cover for absence, equipment, consumables, recruitment and administration are added. The reverse is also common: an under-specified contract looks cheap until the variations arrive.

How many staff does self-delivery require?

Enough to cover the schedule plus absence, which typically means a pool of at least 1.2 people per full-time equivalent, plus supervision of roughly 10–15% of a full-time role per site. Below that, holiday and sick cover becomes overtime or an unserviced area.

Can we run some sites in-house and others contracted?

Yes, and many portfolios do — but only if the standard and scoring method are identical across every site. Otherwise the two models cannot be compared and expansion decisions get made on anecdote. Keep one item list, one scoring scale and one audit calendar, and split only the reporting.

What breaks most often when bringing a service in-house?

Recruitment and supervision. Organisations plan the equipment and schedule carefully, then discover they cannot hire reliably, or that nobody has time to supervise. Confirm the supervision hours in someone's job description before setting a start date.

How often should the decision be reviewed?

Review it every 24 months, and immediately whenever performance, cost or occupancy moves materially. Tying the review to the contract renewal date keeps it on the calendar, and 24 months is long enough to see a cost trend.

Decide once, then keep verifying

The delivery model is a management decision, not a moral one. The property management vendor management framework covers how contracted services fit into the wider contract cycle, from prequalification through to offboarding.

Contract, self-deliver or mix — the question that follows is always the same: is the standard being met, and can you prove it with dated evidence from an inspection you controlled?

NeatScore gives property and facilities managers that verification layer for either model: weighted item lists scored on the APPA 1–5 scale, critical items flagged, photos per item, offline inspections that sync when the device reconnects, branded PDF reports, deficiency tracking, and a multi-site dashboard that compares sites whether they are serviced in-house or by a contractor. Start a free 14-day trial or see the plans.