Local service guide

Roof Cleaning and Repair in Chicago, IL

Masters' Guild · Updated

Arrange Roof Cleaning and Repair by comparing written proposals that separate cleaning, drainage work and repairs. Have a roofer assess water entry before you approve cosmetic cleaning. For Chicago reroofing work, verify the contractor’s Illinois roofing license and establish the permit path. The city’s Express reroofing instructions set scope limits and document requirements, including association approval letters for condominium applications through that program. [1] [2]

Define the problem and cleaning method

Tell bidders whether you want to address visible buildup, overflowing gutters, damaged covering or water entering the home. Send photographs taken from the ground or inside, and describe when you noticed the problem. For a leak, have the roofer explain the suspected entry point, remaining uncertainty and next inspection step before you approve cleaning.

Have the cleaning contractor identify the roof material and put the proposed product, application method and cleanup plan in writing. Require an explanation of how the method follows the manufacturer’s care instructions. Include roof access, protection for landscaping and nearby property, and handling of treatment runoff. Agree on who will document any damage found during the assessment.

Verify credentials and the permit path

Chicago’s Express reroofing instructions require the general contractor or subcontractor performing roofing work to hold a valid Illinois roofing contractor license. Use the License Look Up route on IDFPR’s Roofing Contractor page to check the company named in your repair proposal. Obtain insurance documentation and identify the person responsible for follow-up questions. [1] [2]

The city lists repair limited to 25% of roof area, recover over one existing layer and replacement without structural work among Express eligible scopes, subject to additional limitations. It directs applicants to separate guidance on permit exemptions. Have the contractor establish the applicable permit or exemption before setting the work date. [1]

For Express reroofing applications, Chicago requires a licensed general contractor, with owner participation allowed in some cases. Structural repairs require drawings from an Illinois-licensed architect or structural engineer. Recover over two or more existing layers requires structural calculations from one of those professionals. Include responsibility for this preparation in the repair proposal. [1]

Set your budget using written bids

Set your budget using property-specific written bids. Give bidders the same photographs and requested work description. Compare separate prices for cleaning, gutter work and repairs, along with the roof areas included, access equipment, disposal and property protection. For repairs, include material specifications, permit handling and any design professional work.

Agree on payment stages, exclusions, completion photographs and written warranty terms. Before approving additional repairs, require photographs, a description of the added work and a written price change. Have each bidder explain scope differences before you compare totals. Clarify whether a leak proposal includes temporary protection, the final repair or both.

Plan for autumn and early winter conditions

At O’Hare, the National Weather Service’s 1991–2020 normals report an average of 2.7 October days, 14.5 November days and 25.4 December days with minimum temperatures at or below 32°F. Use these historical averages to discuss autumn and early winter contingencies, then consult the forecast for the appointment. [4]

Agree on the contractor’s weather cancellation process and the product temperature requirements before booking. Have the contractor explain how they will assess roof conditions and protect unfinished repair areas if work stops. Keep roof access and treatment work with the hired crew; prepare photographs and access information from safe locations.

October–December days with minimum temperatures at or below 32°F

October–December days with minimum temperatures at or below 32°F. Data table follows.
Chicago O’Hare weather station · 1991–2020 climate normals. The National Weather Service publishes mean monthly counts of days with minimum temperatures at or below 32°F at O’Hare across the 1991–2020 normal period. The unit is average days per month. These historical station averages help homeowners discuss autumn and early winter scheduling contingencies. They do not forecast appointment-day weather, describe conditions on a particular roof or establish whether a cleaning product can be applied. [4]
October–December days with minimum temperatures at or below 32°F (days/month)
ItemValueSource
October2.7 [4]
November14.5 [4]
December25.4 [4]

Local details that affect your job

Prepare documents for Express reroofing

Chicago’s Express application instructions call for the property address and PIN, owner and emergency contacts, building information, proposed scope and Illinois roofing contractor license number. Applicants must upload at least one existing-condition photograph. For condominium property, including an individually owned unit, this application pathway requires an association approval letter describing the work and bearing an authorized representative’s signature. Coordinate submission responsibilities with the contractor and association before setting a start date. [1]

Disclose rooftop features before proposing a recover

Chicago excludes buildings with an unpermitted rooftop feature from Express reroofing eligibility. Its instructions also require an Illinois-licensed architect or structural engineer when an existing occupiable rooftop will be removed and reinstalled. Tell bidders about rooftop decks and have them establish the existing roof-layer count before recommending another covering layer. [1]

Review where roof water leaves the property

Chicago Water Management explains that intense rain can fill sewer mains and force water into basements through private sewer drains. The department recommends disconnecting downspouts from the drainage system and directing water to lawns. It assigns private-property gutter and yard changes to owners. Include downspout destinations in the work discussion and have the contractor assess a suitable route for your property before changing drainage. [3]

Choose the next step for your proposed work

SituationNext stepPlanning detail
Visible debris or stainingGet a material-specific cleaning proposal.Define the treatment, access and cleanup plan before approving work.
Repair limited to 25% of roof areaHave the roofer establish the permit path.Chicago lists this scope as Express eligible, subject to limitations; eligibility does not establish an exemption.
Structural roof repairInclude a design professional in preparation.The Express application requires drawings from an Illinois-licensed architect or structural engineer.
Recover over two or more existing layersConfirm the layer count and arrange calculations.The Express application requires structural calculations from an Illinois-licensed architect or structural engineer.
Express reroofing application on condominium propertyCoordinate the association approval letter.An authorized representative must sign the letter and describe the work.
[1]

Your hiring checklist

  1. Send safe-location photographs and describe leaks, overflow or buildup.
  2. Separate cleaning, gutter work and repair tasks in the proposal.
  3. Check the roofing company’s legal name and license record.
  4. Confirm the cleaning method, manufacturer care instructions and runoff plan.
  5. Assign responsibility for permit review, documents and association coordination.
  6. Agree on access, weather contingencies and protection for unfinished work.
  7. Require written approval for scope changes and completion photographs.

Frequently Asked Questions

Does a small roof repair need a permit?

Have the contractor confirm the rule for the exact scope. Chicago lists repair limited to 25% of roof area as Express eligible and directs applicants to separate permit-exemption guidance. The eligibility limit alone does not tell you whether your repair needs a permit. [1]

How do I verify the roofer’s license?

Obtain the company’s legal name and Illinois roofing contractor license number, then use IDFPR’s License Look Up route. Compare the record with the proposal. Chicago’s Express reroofing instructions require the contractor performing roofing work to hold a valid Illinois roofing contractor license. [1] [2]

Can I include gutter work with roof cleaning?

Include both tasks with separate prices and a description of downspout destinations. Chicago Water Management recommends diverting downspout water from the drainage system to lawns. Have the contractor assess how that recommendation applies to your property before you approve drainage alterations. [3]

What should my condominium association prepare?

For an Express reroofing application on condominium property, Chicago requires an approval letter that describes the work and carries an authorized association representative’s signature. Coordinate that letter with the contractor and discuss who can authorize roof access. Confirm requirements for any other permit pathway with the city. [1]

Sources and scope

This guide combines the sources below with practical planning guidance. Figures apply to the stated geography and period; request a written quote for your property.

  1. Express Permit Program: ReroofingCity of Chicago Department of Buildings · Chicago, Illinois · Checked 2026-10-13
  2. Roofing ContractorIllinois Department of Financial and Professional Regulation · Illinois · Checked 2026-10-13
  3. Basement FloodingCity of Chicago Department of Water Management · Chicago, Illinois · Checked 2026-10-13
  4. Chicago (O’Hare) 1991–2020 Climate NormalsNOAA National Weather Service Chicago · Chicago O’Hare weather station · Checked 2026-10-13
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