A roof cleaning quote should explain what the company intends to remove, the method it will use, and how that method fits the roofing material. If the proposal focuses on an attractive after photo without addressing those details, ask for more information before approving the work.
For a Gainesville shingle roof beneath trees, dark marks can make cleaning feel urgent. Start by identifying the condition. A cleaning proposal should distinguish a cosmetic concern from damage that needs a roofer's assessment. Do not climb onto the roof or experiment with pressure, brushes, or cleaning chemicals to find out for yourself.
1. The proposed method includes pressure washing or scrubbing shingles
The Asphalt Roofing Manufacturers Association's algae guidance warns against power washing and using brushes or brooms on asphalt roofing because those methods can damage the surface. Ask the cleaning company to describe its equipment and application method in writing.
A marketing phrase such as “soft wash” does not answer every question about the proposed process. Request the specific method and how it follows the shingle manufacturer's guidance. If the company cannot explain that connection, pause the purchase and consult your roofer.
Ask who supervises the work and how you will report a concern during the visit. The person selling the cleaning and the person performing it should be working from the same instructions. Keep the written scope so you have a record beyond the appearance of the roof when the crew leaves.
2. The company has not identified what is on the roof
Ask what the company believes it is cleaning and what supports that assessment. Algae discoloration, moss, debris, and an area of damaged roofing should not be collapsed into one diagnosis based on a street photograph.
ARMA distinguishes algae discoloration from other conditions, including moss, in its technical guidance. Ask the contractor to explain any uncertainty and whether the roof should be inspected before cleaning. A sales claim that every dark streak means structural damage deserves a specific explanation.
Tell the company about leaks, loose material, or previous repairs. If you have an existing inspection report, provide the relevant findings. Cleaning should not become a way to hide a concern that still needs evaluation. Ask whether any area should be excluded until a roofer addresses it and how that exclusion affects the proposal.
3. The cleaning products and protection plan are unclear
Request the products proposed for your roof and confirmation that the method is appropriate for the installed shingles. ARMA advises against other cleaning chemicals or methods without the shingle manufacturer's approval. Avoid treating a product that worked on concrete or siding as automatically suitable for a roof.
Discuss landscaping, a screened enclosure, outdoor furniture, and any other surfaces near the work. Ask how the contractor will protect those areas and manage the application and rinse process. Mention rainwater collection equipment if you have it, and ask the contractor what arrangements are needed before work starts.
Keep the protection plan in the scope. If someone tells you to move items, identify which items and when. If the company is responsible for preparation, ask who confirms it is complete before application. This turns a vague assurance into an arrangement you can review at the property.
4. The promise goes beyond what the company can explain
Ask what result the price includes and whether a follow-up visit is part of the scope. Be cautious about promises that cleaning will restore the roof to a new condition, add a specific number of years, or permanently eliminate discoloration without supporting documentation.
ARMA notes that cleaning effects can be temporary and discoloration may recur. Discuss realistic expectations for the condition being treated. A proposal can promise a defined service without claiming it will change the roof's underlying age or repair damaged components.
If the company offers a guarantee, obtain the terms, duration, exclusions, and response process in writing. Ask what happens if the result is uneven or if an existing stain remains. Keep those answers separate from any manufacturer warranty for the shingles so the sources of the promises remain clear.
5. There is no plan for existing damage or unexpected findings
Ask whether the company will document the roof's visible condition before work and stop for review if it encounters a concern. Identify who contacts you and what happens to the scope or price if cleaning cannot proceed as planned.
If your roof is leaking or has visible damage, request a roofing assessment before purchasing a cosmetic service. The roofer can explain which issues need attention and whether cleaning should wait. Do not let the cleaning schedule decide the order of necessary repairs.
After the visit, keep the invoice, products used, photographs supplied, and any observations about the roof. If a problem appears later, report the date and location without assuming the cleaning caused it. A useful record makes it easier for the appropriate professional to evaluate what changed.
Ask for a written cleaning description
Send the company this request: “Please identify the condition being treated, the products and application method, the manufacturer guidance you will follow, the property protection plan, and the expected result. Please also explain what happens if you find roof damage before or during the work.”
For an Owens Corning shingle roof, keep the actual product information available when discussing cleaning guidance. If you are unsure whether the visible concern is cosmetic or needs repair, contact Brehm Roofing for a Gainesville roof assessment before booking the cleaning.