Is a Solar-Cleaning Round Viable? Test the Customer Benefit and Your Costs First

Start with a customer reason, not a suburb full of panels

A roof with solar panels is not automatically a cleaning job. First establish why cleaning is being considered: visible dirt or debris, an installer or manufacturer recommendation, a customer concern, or monitoring that deserves investigation. Weather, season, shading, faults and household use can also change the numbers a customer sees; a lower reading alone does not prove that dirt is the cause or that cleaning will deliver a particular uplift.

Solar Victoria says panels can tolerate some grime and that rain may remove reachable dirt on tilted panels. It recommends professional cleaning when panels are very dirty or hard to reach, with the warranty checked before work begins. That supports a case-by-case assessment, not a universal cleaning interval or a guaranteed efficiency gain.

Write the customer's reason in one sentence. If the proposed benefit cannot yet be explained honestly, pause the quote and gather the missing information.

Separate panel cleaning from electrical servicing

Cleaning the panel surface is not the same job as inspecting, diagnosing or repairing the solar system. Energy Safe Victoria says solar servicing involves electrical checks and must be carried out in Victoria by a licensed A Grade electrician employed by a Registered Electrical Contractor. Do not advertise a cleaning visit as an electrical service, diagnose a performance problem outside your verified scope, or turn a Victorian rule into an unsupported Australia-wide licensing statement.

• •Define exactly what the cleaning service includes and excludes.
• •Refer electrical faults, damaged components and system servicing to an appropriately licensed professional.
• •Check state or territory requirements for the work and locations you actually intend to cover.
• •Check the panel model, installer advice and warranty before choosing a method.
• •Do not stand on panels, use a pressure hose or treat roof access as routine.

Gather the facts before promising a price or booking

A remote first look can help identify questions, but it does not prove access, condition, scope or customer benefit. Solar Victoria notes that solar installation quotes may use either a site visit or satellite imagery; that is not a rule that every cleaning quote needs a free visit. Choose the lightest assessment that still gives you enough reliable information for this job.

• •Customer concern and the evidence available so far
• •Panel make, model, installer guidance and warranty conditions
• •Single or multi-storey property, roof type and confirmed access constraints
• •Visible contamination or debris and anything that may need an electrician instead
• •Water, equipment, vehicle and disposal requirements for the defined scope
• •Weather and rescheduling conditions
• •Customer approval, exclusions and the next update you owe

Leave unknowns blank. A confident quote built on invented access, duration or benefit is not a better quote.

Use a cost-and-benefit worksheet before grouping the round

Build the job economics from your own quotes and records. Use one row per possible job: customer need or evidence ___ | model and manual checked ___ | access confirmed ___ | scope and exclusions ___ | travel ___ | setup and task time ___ | admin and handover ___ | direct costs ___ | overhead allocation ___ | contingency ___ | proposed fee ___ | missing information ___ | proceed, defer or decline ___. Keep every figure on the same GST basis.

• •Travel includes the return leg and any realistic parking or access time.
• •Task time includes setup, pack-up and customer handover—not only time touching the panels.
• •Direct costs and overhead are separate from the operator's chosen labour allowance.
• •Contingency is a planning allowance, not revenue.
• •Revenue less those allocations is not automatically net profit, demand or proof of customer benefit.

Worked example: the third job is not ready

This is a fictional planning example, not a market rate, recommended duration or customer record. Suppose three possible jobs are each assumed at A$180. The proposed day allocates 70 minutes to travel including the return, 180 minutes to assessment, setup, task and pack-up, 30 minutes to admin and handover, and 40 minutes to contingency: 320 minutes in total. The operator chooses a A$45-per-hour labour allowance (A$240), plus A$55 for vehicle and consumables and A$65 for equipment, insurance and overhead. On those assumptions, A$540 less A$360 of allocations leaves A$180 before tax and other unlisted costs.

Then job C fails the information gate: access is unconfirmed and the operator has not checked the applicable manufacturer guidance. Remove it from the booked round. Do not keep A$540 as expected revenue or assume that every cost falls by one third. Recalculate the two confirmed jobs with their actual route, time and allocations. The useful answer may be defer the third job—or decline the proposed round until the remaining work covers the day on honest assumptions.

The worksheet is doing its job when it prevents an unsupported promise. It does not need to produce a yes.

Use DayRoute to test the proposed day—after the work is suitable

DayRoute's free web planner can compare a proposed day using up to 10 jobs, user-entered task durations, route-order options and travel estimates. It requires email sign-in and currently provides 10 successful calculations per account; a recalculation uses another calculation. Use it only after the customer need, scope and access questions are far enough along to justify a planning comparison.

• •Compare the route with and without a conditional job.
• •Enter honest task durations and keep a separate allowance for setup, handover and contingency.
• •Check the predicted finish against commitments you have already agreed with customers.
• •Recalculate only when the changed information matters to the decision.

The planner does not inspect a roof, confirm safe access, issue a quote, diagnose a solar system, prove profitability or enforce a customer appointment window.