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Roof Repair Guide: Get It Fixed

What Happens During a Roof Repair Visit, Start to Finish

Most people have never watched a roof repair from start to finish. They see a truck pull up, hear some walking overhead, and get a bill. That leaves a lot of room for doubt about what was actually done and whether it was the right thing.

This page walks through a repair visit the way we run it at Stellar, using only what we already publish about our own process, and fills in the general steps any good repair visit should include where our pages don't go into detail. Use it to know what to expect from us, or as a yardstick for any roofer you hire.

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By Paul Aikens, Founder & OwnerMichigan Licensed Residential Builder #262000779Updated

The Short Answer

A good roof repair visit has five parts: a diagnosis on the roof and in the attic that finds every source of the problem, a clear explanation with photos and a firm written price before work starts, the repair itself using materials that suit the existing roof, a check that the fix holds, often by re-testing with water, and cleanup with a magnetic nail sweep and photos of the finished work.

Key Points

  • Preparation starts before the truck arrives: at Stellar the roof is measured by satellite and the material is confirmed and loaded.
  • Diagnosis covers the roof surface, every flashing and penetration, and the attic, with water testing when the source isn't obvious.
  • You should get a firm written price, and sometimes two honest options, before anyone touches the roof.
  • A leak repair isn't finished until the area is re-tested, the surrounding components are checked, and the work is photographed.
  • Cleanup includes a magnetic nail sweep; drywall, paint and mold belong to other trades.
Before Arrival

The Work That Happens Before Anyone Gets on the Roof

A repair visit starts in the office. At Stellar, somebody measures the roof by satellite before the technician arrives, and somebody confirms the right material is ordered and on the truck. That is part of what the $500 minimum pays for: the technician shows up with what the job needs instead of discovering halfway through that the shingle or the flashing is wrong.

The technician is matched to the job. Minor repairs, such as a pipe boot, a few shingles or a section of step flashing, go to one of our Level 2 technicians. More complex work, like most chimney re-flashes, skylight replacements and badly built valleys, goes to our highest-skilled Level 4 technicians. The people who diagnose your roof are the people who fix it, not a salesperson who hands it off.

If you sent photos or a leak log when you called, that is when it gets used. It helps decide how long to block out and what to bring.

Arrival

Arrival and the First Conversation

Expect the technician to start on the ground, not on the ladder. A good visit begins with a few minutes of conversation: where the water shows up, when it appears, what has been done before, and whether there is an attic hatch they can use. This is where your notes pay off.

Then comes setup. Any roofer should pick a ladder spot that is stable and clear of overhead power lines, and set up fall protection before working at the edge. Michigan's MIOSHA rules require residential roofing workers six or more feet above a lower level to use guardrails, safety nets or a personal fall arrest system, so a harness and an anchor are normal and are not a sign that your roof is unusually dangerous.

Diagnosis

Finding the Real Source, and the Second One

Diagnosis is the part of a repair that separates a fix from a patch. Our technicians inspect the roof surface, every flashing, every penetration, and the attic. They take moisture readings, and when the source isn't obvious, they do controlled water testing: isolating sections of the roof and flooding them one at a time until the leak shows. It is slower than guessing, and it is why the repair holds.

Then they keep looking, because one ceiling stain is often fed by more than one entry point. Water can come in at two, three or four places and run to the same low spot. Fix one and the stain keeps growing. A visit that stops at the first suspect is the reason so many leaks seem to come back.

  • On the roof: shingles or membrane, flashing at walls, chimneys and penetrations, valleys, pipe boots, vents, skylights, and the eaves where ice dams start.
  • In the attic, when it can be reached: the underside of the deck for staining and rot, insulation, and ventilation.
  • Around the house: anything that affects how the roof performs or how the repair would be done.
  • Documentation: our inspectors fill out an inspection sheet on every roof and photograph what they find.
The Decision

An Explanation, Options and a Written Price

Before any work starts, you should understand what failed, why, and what it takes to fix it. We give you a written report with photos and a plain answer: repair, maintain, replace, or leave it alone, along with what each would cost. You get a firm written price before anyone touches the roof.

Some problems have two honest answers. There is a minor option that fixes what is in front of us and comes with realistic expectations for how long it lasts, and a moderate or major option that addresses the root cause, carries a stronger warranty and costs more because it is a more thorough job. Both are legitimate. We lay out both and let you decide based on your budget and how long you plan to keep the roof.

This is also the moment to ask about anything else the technician noticed. Every Stellar repair starts at $500, and that minimum covers the trip, so one visit that handles three small problems costs less than three separate visits.

In Michigan

What Michigan's Builder Rules Say About the Written Price

Michigan backs up the written-price habit with a licensing rule. Roofing for homeowners in Michigan is done under a residential builder or a residential maintenance and alteration contractor license, and the state's administrative rules for those licensees are specific. Rule R 338.1533 says all agreements and changes to the agreement between a builder or contractor and the customer shall be in writing and signed by the parties, with copies provided to the customer. It also says the contractor shall make certain the written agreement clearly states the terms of the transaction, including the cost, the type and amount of work to be done, and the type and quality of materials to be used.

That rule matters at two points in a repair visit. The first is before work starts: the written price should name what is being fixed and with what, for example replacing a pipe boot and the shingles around it, not just the words roof repair. The second is when the roof is opened and there is more than expected, such as soft decking under a failed flashing. Under the same rule, that change also belongs in writing, signed, with a copy to you, before the extra work goes ahead. A verbal okay on the driveway is not a signed change.

The rules cover advertising too. Rule R 338.1532 requires a licensee to include its name, license number and actual business address, as shown on the license, in all advertising, so you can check the license on the state's lookup before anyone arrives. Stellar's owner, Paul Aikens, holds Michigan Licensed Residential Builder #262000779.

This summarizes the administrative rules and is not legal advice; for a dispute over a specific contract, talk to an attorney.

Checking a license

How to look up a Michigan builder or maintenance and alteration license, and what it does and does not prove.

Verify a license

Contract requirements

What a Michigan roofing contract or repair agreement should say, change orders and deposits.

Roofing contract rules
The Fix

The Repair Itself

What happens next depends on what was found. Our published leak repair process describes the usual work: re-flashing a chimney or valley with new metal, cutting counter flashing into the masonry, adding kick-out flashing where a roof edge meets a wall, replacing failed pipe boots, resealing or reseating shingles, and replacing any water-damaged decking or underlayment. We choose the sealant for each material from the forty to sixty we carry, and use it where the detail calls for it and nowhere else.

Whatever roofer you hire, the work should be built the way the detail is meant to be built, not smeared over. Michigan's residential code requires flashings on reroofing work to be reconstructed according to the manufacturer's installation instructions, and requires sidewall base flashing to be continuous or step flashing at least 4 inches high and 4 inches wide, directing water away from the wall. Shingle makers such as GAF also call for hand-sealing shingles during repairs and in cold weather, because disturbed shingles may not re-seal on their own without enough heat.

Time on the roof follows the tier. Minor repairs usually take a few hours to half a day. Moderate repairs usually take a full day. Major work involving framing, deck replacement or several problem areas can take multiple days and more than one trade.

Emergencies

When the Visit Starts as an Emergency

An active leak changes the order of things. Our technician arrives prepared to work, so the same visit that diagnoses the leak stops the water. Sometimes that is the permanent fix on the spot. When the damage runs deeper, we tarp and stabilize the roof that day and the permanent repair gets scheduled. For a true emergency we are usually on site within 24 hours, weather permitting and if the roof is safe to access, and emergency repairs typically start around $850.

Proof

Re-Testing and Photos of the Finished Work

A leak isn't fixed until it stays fixed. After the repair, we re-test the repaired area, confirm water sheds properly, check the surrounding components, and document the work with photos so you know exactly what was done and why.

Any roofer should be able to show you the before and after. If a visit ends with a verbal "it should be good now" and nothing you can look at, ask for photos of the repaired area and a short description of what was replaced. You will want both for your records, for the warranty, and for the day you sell the house.

Wrap-Up

Cleanup, Paperwork and What Comes After

We leave the site clean, magnetic nail sweep included. Old flashing, boots, shingles and packaging should leave with the truck, and the ground under the work area should be swept for nails, especially where kids, pets and tires go.

Before the technician leaves, you should know what was done, what warranty applies, and who to call if the leak returns. Most Stellar repairs carry a 10 to 15 year craftsmanship warranty, written for the job. Our craftsmanship warranty is separate from any manufacturer warranty, and none of it is automatic: the terms are the ones in writing.

One thing a roofer does not do is repair the inside of your house. Our job is to stop the leak and repair the roofing components that failed, including decking and underlayment. Drywall, paint and any mold work are separate trades, and the photos from the visit are what you hand to them or to your insurer.

After the visit

How to check a finished repair from the ground and attic, what paperwork to keep, and what to watch in the first big rain.

Checking a finished repair
Side by Side

A Repair Visit at a Glance

StageWhat happensWhat you should get
Before arrivalRoof measured, material confirmed and loaded, technician matched to the jobA scheduled time and someone to call
DiagnosisRoof surface, every flashing and penetration, the attic; water testing when neededPhotos and an explanation of every source found
DecisionOptions laid out, sometimes a minor and a root-cause fixA firm written price before work starts
RepairFailed details rebuilt with matched materials and the right sealantWork done the way the detail is meant to be built
VerificationRe-test, check surrounding components, photographBefore and after photos
Wrap-upDebris removed, magnetic nail sweepWritten warranty terms and a number to call
Next Step

See What Your Roof Actually Needs

Start with a free inspection: on the roof and in the attic, with photos and a firm written price before anyone touches it.

FAQ

Questions We Hear

Can the roofer diagnose and fix the leak in the same visit?

Often, yes, for smaller repairs. A technician who arrives with the likely materials can diagnose the leak, give you a written price and fix it the same day. Larger repairs, special-order materials or damage that turns out deeper than expected usually need a second visit. With an active leak, the first goal is to stop the water that day even if the permanent repair is scheduled later.

Why does the technician need to go in my attic?

The underside of the deck shows things the shingles hide: where water is actually reaching the wood, how far it has traveled, whether the deck is rotting, and whether condensation rather than a leak is the real problem. Ventilation and insulation, which drive ice dams in Michigan, can only be judged from inside. If your hatch is in a closet, clearing a path saves time.

What is a water test on a roof?

It is a controlled way to reproduce a leak. The technician runs water over one small section of the roof at a time, starting low and working uphill, while someone watches inside or in the attic. When the drip appears, the last section wetted is the source. It takes time, which is why it is used when the source isn't obvious rather than on every job.

Should I pay before or after the roof repair is done?

Ask before you sign, so it is in writing. Payment terms vary by company and job size. Whatever the terms, pay against a written scope and price, keep proof of payment, and be cautious of anyone who wants full payment in cash before starting. On larger jobs, Michigan's lien law gives you tools such as lien waivers; our checking guide covers the paperwork.

Sources

What This Page Cites

  • MIOSHA Fact Sheet: Residential Fall Protection (CSHD Fact Sheet #030, revised 9/11/2023), Michigan Occupational Safety and Health Administration (https://www.michigan.gov/documents/dleg/deleg_wsh_constfact_residential_fall_protection_349397_7.pdf), accessed October 2026
  • 2015 Michigan Residential Code, Chapter 9 Roof Assemblies, Sections R905.2.8.3 and R908.6, International Code Council (https://codes.iccsafe.org/content/MIRC2015P2/chapter-9-roof-assemblies), accessed October 2026
  • Installing Timberline HDZ Shingles in Different Seasons, GAF (https://www.gaf.com/en-us/blog/installing-timberline-hdz-shingles-in-different-seasons-281474980127309), accessed October 2026
  • Construction Lien Act, MCL 570.1115 (waivers of lien), Michigan Legislature (https://www.legislature.mi.gov/Laws/MCL?objectName=mcl-570-1115), accessed October 2026
  • Residential Builders and Maintenance and Alteration Contractors, Mich. Admin. Code R 338.1532 (advertising) and R 338.1533 (purchase and sales agreements), Michigan Department of Licensing and Regulatory Affairs (https://www.michigan.gov/-/media/Project/Websites/lara/bcc-media/ASD/ResidentialBuildersAndMaintenanceAndAlterationContractors_1765_2017-087LR_AdminCode.pdf), accessed October 2026
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