A signable exterior-cleaning proposal defines the property problem and the promised result, not just a price. It should name surfaces and exclusions, state the method and access plan per elevation, describe how occupants and site conditions are protected, and set out schedule, documentation, change-order process, and payment terms. Anything left implicit becomes a dispute later.
Key Takeaways
- The proposal should describe the condition being corrected, not only the work being done
- Exclusions are as informative as inclusions, and a proposal with none has not been thought through
- Method and access should be stated per elevation with a reason tied to material
- Documentation deliverables are what let you evaluate the vendor at the next cycle
- Change-order process and rain-delay policy belong in the document, not in a conversation
The Proposal Should Define the Problem and the Result
Most commercial exterior cleaning proposals describe an activity: wash the building. A proposal you can sign confidently describes a condition and a result: this facade currently carries biological growth on the north and east elevations and atmospheric soiling throughout, and the work will remove both to a uniform appearance across all four elevations.
The difference is not stylistic. An activity description cannot be evaluated on completion, because the activity happened regardless of the outcome. A result description can be walked and checked.
It also exposes whether the vendor actually assessed the property. A proposal that names the specific soil conditions present on specific elevations came from a site walk. One that offers to clean the exterior came from a template and a square footage estimate.
Read the first paragraph of any proposal with that test in mind. It tells you most of what you need to know before you read the price.
Scope of Work: Surfaces, Areas, Stains, and Exclusions
Check that the scope names, in writing:
- Every surface and elevation included, matched to the zone names from your site walk so the two documents line up
- Approximate area per zone, so you can see what the pricing is built on
- The specific soil conditions being addressed per zone: biological growth, atmospheric grime, efflorescence, oil and tire staining, gum, graffiti, rust bleed
- The treatment approach per condition, since these need different chemistry
- What is explicitly excluded. Glass replacement, repairs, sealing, signage interiors, awning fabric, HVAC screens, interior glass, roof surfaces, gutter clearing, painting or coating
- Stains that may not fully clear. Rust bleed etched into masonry, deep oil penetration in concrete, artillery fungus, and lichen on shingle are common examples. A vendor naming these in advance is being straight with you; one promising a uniform result on all of them is not
A proposal with no exclusion list is not a simpler proposal. It is one where the exclusions will be asserted after the work, when you have less leverage.
Site and Access Plan
The access section is where cost is actually determined, and where two proposals most often diverge without either being wrong.
Confirm the proposal states:
- The method per elevation, with a one-line reason tied to the material and the site: soft washing on the EIFS elevations because pressure risks the finish coat, pressure washing on the concrete apron, and so on
- The access approach per elevation: ground and wand, extended pole, lift, rope access, scaffolding, or drone-based, and why that choice fits this building
- Equipment staging location and duration, including how many parking spaces or how much sidewalk is taken and for how long
- Water source and volume, whether drawn from the site or brought in
- Power requirements, if any
- Roof or elevation access needs, tie-off points, and who provides access
- Airspace considerations where drone-based work is proposed, plus confirmation the operator holds FAA Part 107 certification
- Weather dependencies for elevated work
If one bidder proposed lift access on an elevation another priced from the ground, that is worth resolving before award rather than after. Our guide on choosing building-cleaning access methods covers how site conditions should drive that decision.
Protection and Operations
This section determines how the work affects the people using the building, and it is the one tenants will judge you on.
- Occupant protection. Pedestrian routing, barricades and signage, wet-surface marking, and how walkways stay usable during work
- Landscaping. Pre-watering, covering, and post-rinse for beds and plantings adjacent to work areas
- Vehicles. Which parking areas are affected, for how long, and how tenants are notified to move
- Entrances and deliveries. How main entries, service doors, and loading docks stay operational, and what the alternate routing is if they cannot
- Building systems. HVAC intakes, exterior electrical, light fixtures, and security equipment covered or avoided
- Work windows. Specific hours per zone, tied to the occupancy constraints from your walk notes
- Runoff and containment. Where wash water goes, whether containment or recovery is used, and how any local stormwater restriction is met
- Notice. How far in advance tenants are notified, who drafts the notice, and how it is distributed
A proposal that covers protection in one sentence has not planned it. This is the section where a vendor who works on occupied commercial property looks different from one who does not.
Deliverables and Terms
Confirm the commercial terms before signature, not after the first invoice.
- Schedule. Start date, estimated duration, sequence by zone, and what happens if a phase runs long
- Weather and rain-delay policy, in writing, with a defined rescheduling window rather than an open-ended one
- Communication. Named point of contact, response expectation, and escalation path
- Documentation deliverable. Before and after photos per zone, method and product used per surface, service dates, and any condition findings. This is the record you will use for the next bid cycle and for board or ownership reporting
- Change orders. How an unexpected finding is priced, who approves it, and confirmation that work stops pending approval rather than proceeding and billing
- Insurance. Current general liability certificate naming the property or management company as additional insured, active workers' compensation, and expiration dates checked against the contract term
- Warranty or callback policy. What is covered, over what window, and what triggers a return visit
- Payment terms. Deposit, progress billing, retention if any, and final payment conditioned on the completion walk
The change-order clause matters more than most people expect. Hidden damage and heavier-than-expected buildup are normal findings on commercial exteriors. Discovering them on the final invoice is not normal.
Questions to Resolve Before Signing
- Who is the on-site crew lead, and what comparable properties have they worked on?
- Does the price hold if the scope is phased across two budget years?
- What happens if an elevation turns out to need a different method than proposed?
- How is the completion walk conducted, against what criteria, and with whom?
- If results fall short on one zone, is the remedy a return visit, a credit, or a negotiation?
- Is the insurance certificate current through the full contract term?
- What is the notice period if we need to reschedule?
- Will the documentation be delivered in a format we can file and reuse?
Get the answers in the document rather than in the email thread. Our vendor vetting checklist covers the pre-proposal diligence that makes this stage shorter.
Request a Property-Specific Scope Review
If you have proposals in hand and cannot tell whether they cover the same work, a documented scope review is usually the fastest way to find out. WashLabs Exteriors will walk the property, document it zone by zone, and return a scope with method and access named per elevation, which you can compare directly against what you already have.
Call (610) 665-3995 or request a free scope review.