Chimney Flashing Repair · WI, IA & IL

Chimney flashing repair in Wisconsin, family‑owned since 1979.

Buckshot repairs and replaces leaking chimney flashing across Wisconsin. GAF Master Elite crews, free on-site inspection, written report in about two days. Storm emergencies answered 24/7.

FreeinspectionWrittenreport24/7storm lineOwncrews

4.9 on 200+ Google reviews ·Mon to Sat, 8am to 5pm·Family-owned since 1979

GAFMaster
Elite

★★★★★ 4.9200+ GOOGLE REVIEWS

FREE ESTIMATE · NO OBLIGATION

Find out where the chimney leak starts

GAF Master EliteTop 2% nationwide

FORTIFIED1 of 4 in WI

BBB A+10+ regions

InterNACHI100% staff certified

4.9 / 5200+ Google reviews

The parts that keep it dry

What chimney flashing is made of.

Tap each piece to see the job it does on your chimney, and why the usual shortcut fails.

Apron flashingStep flashingCounter flashingCricket / saddleThe caulk ‘fix’

Apron (base) flashing

Bends over the roof at the downhill front of the chimney and sheds runoff out onto the shingles - the first place water hits.

Step flashing

Small L-shaped pieces woven into the shingles up each side of the chimney, one per course, so every seam is lapped. Skip them or reuse them and the sides leak.

Counter flashing

Cut into the chimney’s mortar joint and folded down over the step flashing. It’s what makes the joint permanent - the piece quick fixes almost always skip.

Cricket / saddle

A small peaked ridge behind a wide chimney that splits water around it instead of letting it pool and back up on the uphill side.

The caulk ‘fix’ - what fails

A bead of caulk or tar smeared over the gap. Looks sealed for a season, then sun and freeze-thaw crack it - and it traps water, so the next leak is worse. This is the patch we replace with metal.

Illustrative. Your chimney is inspected in person to confirm the real leak source before any work starts.

Warning signs

Signs your chimney flashing is leaking.

Caught early, a leaking chimney flashing stays a flashing repair. Left alone, it becomes decking, insulation and drywall.

Stains around the chimney

Ceiling or wall discoloration around the chimney chase is the first sign water is getting past the flashing.

Rust or staining on the metal

Rust streaks on the flashing, or dark staining running down the brick, mean the metal is failing.

Drips only in driving rain

A leak that appears in a storm and dries out afterward points straight at the chimney joint.

Tar-smeared or lifted flashing

Flashing that is lifted, split or smeared with tar is an old quick fix that is now failing.

Crumbling mortar or white residue

Deteriorating mortar joints and white efflorescence on the brick let water in behind the counter flashing.

A musty smell in the attic

A damp, musty smell near the chimney chase means moisture is already getting in and sitting.

What it costs

What chimney flashing repair costs.

Chimney flashing repair is priced by scope, not by a flat rate. Here is what moves the number.

A free written report

We inspect and give you a written report naming the actual leak source, usually within a couple of days, whether or not you hire us.

Scope drives the price

Resetting counter flashing costs less than a full strip and replace or a new cricket. Your estimate matches what your chimney needs.

Metal, not sealant

We quote metal flashing set into the mortar, so you pay once instead of paying again for the same leak next spring.

Deductible on a storm claim

If a covered storm caused the damage, we document it and you typically pay only your insurance deductible.

You pay for a repair that holds, not a patch that returns next spring. On a covered insurance claim you typically pay only your deductible.

The right repair

Chimney flashing repair or full replacement.

Some chimneys need a reset, others need every piece replaced. We recommend the smallest repair that actually holds.

Flashing repair

When the system is mostly sound, we reset the counter flashing and replace the failed sections so it seals again.

Full flashing replacement

We strip the old patchwork and install new step, apron and counter flashing in metal, set the right way.

Re-flash with a new roof

Replacing the roof? We install all-new chimney flashing at the same time, because reused flashing is a leak waiting to happen.

Cricket or saddle

On a wide chimney, a peaked saddle behind it splits water around the chimney instead of letting it pool and back up.

Why the quick fix fails

A caulk fix buys one season.

Caulk or tar over failed flashing looks sealed for a season, then cracks in sun and freeze-thaw. It traps water behind the metal, so the next leak is worse. Here is where a small chimney leak goes when it is left alone.

In weeksSoaked decking

Water wicks into the sheathing under the shingles and the deck softens right where the flashing failed....Repair cost

In monthsMold & lost insulation

Moisture spreads into the attic, mold takes hold, and wet insulation stops working, which shows up on your energy bills....Repair cost

Left longerCeilings & framing

Stains bleed through drywall and the rafters can be damaged, the costliest repair of all, from one small flashing leak....Repair cost

Every repair we quote uses real metal flashing. We strip the patchwork and set counter flashing into the mortar joint, cut in so it stays put.

BGC Flashing done the right way

Metal flashing set into the mortar, with a written warranty.

We find the real leak source, strip every quick-fix patch, and install step, apron and counter flashing in metal, cut into the mortar joint. You get a written workmanship warranty when the work is done. GAF Master Elite, FORTIFIED-trained, BBB A+, family-owned since 1979, with our own crews.

GAF Master EliteTop 2% of US roofers

Metal, not caulkSet into the mortar

Written warrantyWorkmanship, in writing

Our own crewsOne point of contact

How we fix it

How we repair chimney flashing.

A straight path from leak to dry, with the source confirmed before anyone touches the roof.

Free leak inspection We find the actual source of the leak, not just where the stain shows up, and give you a written report.

Written estimate You get the scope and the price in writing before any work starts.

Strip the old patchwork We remove the failed caulk, tar and old flashing instead of covering over it.

Install metal flashing New step, apron and counter flashing, with the counter flashing cut into the mortar joint.

Walkthrough & written warranty We confirm the chimney is watertight, walk it with you, and hand over a written workmanship warranty.

Homeowners trust us

4.9 stars, pulled straight from Google.

4.9 / 5 · 200+ verified reviews

    
 
 
       Posted on Google  
   
   Joy I 
 
 
 
 Trustindex verifies that the original source of the review is Google. When the big storms came through the Madison-area in April 2026, I immediately started looking for a reputable roofer—who also understood the importance of weather-resistant materials that can withstand hail and wind. It didn’t take me long to find Brad from BCG. We had damage that needed to be repaired before the next round of storms came through later that day and Brad had a crew out within hours. Our neighbors also had damage, and when their roofing company didn’t show up, Brad and his crew also took on fixing their damage on the spot.

The contracting process was done over email and we were able to clearly understand all of the options available to us. On the day of install, the crew was efficient and fast with their work. But also, mistakes can happen. And what matters to us is not that there’s perfection (because that’s not realistic), but how a contractor deals with a mistake. As they were taking down the tarps when they were finished with the roof, one of our lights next to the garage broke. Brad helped find a replacement online and had it shipped directly to our house! Such great service!

All in all, we were very happy with Brad and the service we received from him and BCG. We’ve since recommended their services to several of our friends and neighbors who also had storm damage. While I hope we won’t have to do that again for a long time, we would work with BCG again in a heartbeat!
  
 
      Posted on Google  
   
   Shelly Ziegler 
 
 
 
 Trustindex verifies that the original source of the review is Google. I am extremely pleased with the service Matt Walmer from Buckshot General Contracting (BGC) provided for me during the hailstorm damage in Madison in April. I had just switched insurance companies one year ago and was worried about how much they would cover. Matt assured me everything would be taken care of and had nothing to worry about. True to his word he immediately answered phone calls during off hours even when he was with daughter at volleyball and answering texts in seconds Matt met up with assessor and arrived 20 minutes early. During roof replacement he stopped in 3 times to check the progress and next day he came back to do a walk around to make sure the cleanup was to his standards. I have been so blessed to work with Matt at BGC as my contractor as everything went so smoothly. No problems with my insurance company and I was the first one on my block to get my roof done. I also was telling Matt about some of my neighbors having problems with their insurance and he was willing to look at their paperwork and giving them advice on how to deal with them. I can proudly say I announced to them how good Matt was and gave them his card. Thank you so much Matt for your excellent service and being a great representative for Buckshot General Contracting. These days days it’s hard to find a business that is 100% committed to making sure the customer is their #1 concern. Going to be doing more work and sticking with them as I know it will be top quality.
  
 
      Posted on Google  
   
   Amy Stephens 
 
 
 
 Trustindex verifies that the original source of the review is Google. We contacted BGC after storm damage and had them completely re-roof and re-side our house, garage, and shed. The entire process was incredibly smooth from start to finish. They were easy to work with, handled all the details, and made what could have been a stressful situation completely worry-free.
Our contact, Jayce Kirkland, was outstanding. His professionalism, communication, and courteous demeanor were truly a breath of fresh air. He took care of everything for us and made sure the project stayed on track every step of the way. We couldn’t be happier with the experience and have and would highly recommend BGC to anyone needing roofing or siding work!
  
 
      Posted on Google  
   
   Rob Anast 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very customer focused company.  Replaced my roof and siding after hail and wind damage 6 years ago.  Second hail and damage storm this year and they are my vendor of choice again.  In process now to replace my roof and siding.
  
 
      Posted on Google  
   
   paolo masone 
 
 
 
 Trustindex verifies that the original source of the review is Google. Brad gave me a good price and the roof looks great!  The roof was replaced in one day.
  
 
      Posted on Google  
   
   Doug Cooper 
 
 
 
 Trustindex verifies that the original source of the review is Google. They did an excellent job! Fast, efficient and did a great job cleaning up.
  
 
      Posted on Google  
   
   christos karampetsos 
 
 
 
 Trustindex verifies that the original source of the review is Google. My family member needed a roof replacement after the recent storm in Madison , Chad came out to inspect the roof and went over the options with us. Full roof replacement and the new roof looks GREAT, they were done with in 2 days and left no mess behind which was very thankful for.

Thanks !!

See all Google reviews →

Frequently asked

Chimney flashing, answered.

Is the chimney really the source of my roof leak?

Very often, yes. The joint where the chimney meets the roof is one of the most common leak points on any roof, because the flashing there takes the most runoff and movement. We inspect, find the actual source, and give you a written report.

Can you just caulk the chimney flashing?

Caulk or tar over failed flashing holds for about a season, then cracks and traps water behind it. A chimney flashing repair that lasts means metal, with the counter flashing cut into the mortar joint.

What is the difference between step flashing and counter flashing?

Step flashing is the L-shaped metal woven into the shingles up each side of the chimney, one piece per shingle course. Counter flashing sets into a cut in the mortar joint and laps down over it. A chimney needs both, and quick fixes usually skip the counter flashing.

How much does chimney flashing repair cost in Wisconsin?

It depends on scope. Resetting counter flashing sits at the low end, and a full strip and replace with a new cricket sits at the high end. You get the number in writing after a free inspection.

Should I replace chimney flashing when I replace the roof?

Yes. Reused flashing under a new roof is a leak waiting to happen, so new chimney flashing is part of every roof replacement we install.

Do you repair other roof flashing besides chimneys?

Yes. We repair step and sidewall flashing, valley flashing, vent pipe boots, skylight flashing and drip edge. The same inspection covers every flashing point on the roof, not only the chimney.

Do you repair the chimney masonry as well?

We handle the flashing and the roofing side, including cutting counter flashing into the mortar joints. If the chimney itself needs rebuilding, we flag it and coordinate that work so the repair holds.

My ceiling is stained near the chimney. What now?

Have it looked at before it spreads. A flashing repair now costs far less than soaked decking, ruined insulation and drywall. The inspection and written report are free whether or not you hire us.

Where we work

Chimney flashing repair across Wisconsin.

Two offices, our Madison, WI headquarters and our Brodhead, WI office, cover chimney flashing repair across Dane, Rock and Milwaukee counties, the Fox Valley, and into Iowa and northern Illinois.

● Wisconsin · Headquarters

Madison, WI Office

621 N Sherman Ave, Suite B5
Madison, WI 53704

Mon-Sat 8AM-5PM · 24/7 Storm Line

(608) 909-9109 · Directions →

● Wisconsin · Brodhead Office

Brodhead, WI Office

17312 W Hafeman Rd
Brodhead, WI 53520