Chimney Leak Repair in New Jersey
Finding the actual path water is taking at your chimney, whether flashing, crown, masonry or cap, and repairing that source rather than covering up the symptom.
NJ HIC #13VH12036000 | Serving homeowners across New Jersey from East Rutherford
- Free inspection & estimateNo-cost first visit
- NJ HIC #13VH12036000Registered Home Improvement Contractor
- East Rutherford headquarters168 Humboldt St
- Convenient online schedulingRequest online, then pick a time
Where chimney leaks really come from
A stain beside the chimney tells you water is getting in. It does not tell you how. Chimney leaks can come through the flashing at the roofline, a cracked crown, porous or cracked masonry, open mortar joints, or a missing cap. Sometimes the cause is the roof next to the chimney rather than the chimney itself.
That is why we start by tracing the water. We look at the chimney from the roof when it is safe, the flashing on every side, the crown and cap, the masonry and the shingles around it, and the interior stain and attic where accessible.
Once we have identified the likely entry path, we explain it, show you photos where helpful, and recommend a repair aimed at that source. If more than one path is involved, we explain each one and which matters most.
Why patching often fails
Many chimney leaks have been “fixed” with layers of roofing cement or caulk. If the actual entry point is a cracked crown or open joints higher up, sealing the flashing will not stop the water. Identifying the real path first saves repeated repairs and the frustration of a leak that keeps coming back.
Common chimney leak sources
These are the entry paths we find most often when tracing chimney leaks.
Failed flashing
Gaps, rust or lifted metal where the chimney meets the roof.
Cracked crown
Water entering at the top and working down through the masonry.
Open mortar joints
Eroded joints that let rain soak into the chimney walls.
Missing cap
Rain falling straight down an open flue.
Porous or spalled brick
Damaged masonry absorbing more water than it can shed.
Roof next to the chimney
Damaged shingles or underlayment near the chimney that look like a chimney leak.
Targeted repair or larger fix?
Once the source is identified, the repair can be scaled to the problem.
When a focused repair is often enough
- A single, clearly identified entry point
- Flashing failure with sound masonry
- Missing or damaged cap
- Localized open joints
When more extensive work may be needed
- Several entry points at once
- Crown and masonry both deteriorated
- Long-term water damage to the brick
- Leaks returning after past repairs
Factors that affect the decision
How many entry paths there are, the condition of the flashing, crown and masonry, interior damage, and whether roof work is planned.
When further investigation is needed
Water can travel along framing or the roof deck before it shows inside, so the stain is not always directly beneath the entry point. Some leaks need a repair-in-progress evaluation to confirm the exact path. If interior framing or finishes are damaged, we point that out.
How chimney leak repair works
Request
Send photos of the stain and the chimney, or call or text us.
Trace
We inspect the chimney, flashing, crown, cap, masonry and nearby roof.
Identify
We explain the likely entry path, with photos where helpful.
Estimate
You receive an estimate for repairing that source.
Repair
We fix the entry point, whether flashing, crown, joints, cap or roofing.
Follow up
We review the work with you and explain what to watch after the next rain.
If water is actively coming in, tell us when you contact us so we can prioritize.
Chimney leak repairs by source
Each entry path calls for a different repair.
Flashing
Replacing or resetting step and counter flashing so the roof joint is properly sealed.
Crown
Repairing or replacing a cracked crown so it sheds water off the chimney.
Masonry & joints
Repointing open joints and replacing damaged brick.
Cap
Fitting a cap that suits the chimney to keep rain out of the flue.
What Our Customers Say
We have not yet received Google reviews about chimney leaks specifically. These are genuine Google reviews about roof leak repairs.
Excerpt“Matt from Monarch roofing is an amazing technician, he helped identify a leak and fix the issue in very little time.”
Excerpt“He was very professional and personable. Seriously can’t thank you enough for coming on such short notice and fixing the leak.”
Excerpt“Had a leak on the roof and it was making me go crazy from the prices other contractors gave me. Matt fixed everything up at a reasonable price.”
Quoted from our Google Business Profile. Rating and count as of October 28, 2026.
Chimney leak repair throughout New Jersey
We trace and repair chimney leaks for homeowners in all 21 New Jersey counties, subject to availability, from our East Rutherford headquarters.
Headquarters
168 Humboldt St, East Rutherford, NJ 07073
(551) 241-0470 · monarchroofingnj@gmail.com
Service availability can vary by location and schedule. See all service areas.
Chimney leak FAQs
How do you find where a chimney leak is coming from?
We inspect every likely entry point (flashing, crown, cap, masonry and the roof around the chimney) and compare that with where the water shows up inside.
Is it always the flashing?
No. Flashing is common, but cracked crowns, open mortar joints, porous brick, missing caps and nearby roof damage can all cause leaks at the chimney.
Why does my chimney only leak in heavy storms?
Wind-driven and sustained rain can reach gaps that light rain does not. That pattern often points to flashing or masonry issues.
Can you stop the leak with sealant?
Sealant may be part of some repairs, but it rarely fixes the actual cause on its own. We aim to repair the entry point properly.
What if water is coming in right now?
Call us at (551) 241-0470. Monarch offers 24/7 emergency roofing service, and a leak at the chimney is often a roof-level problem we can help stabilize.
Will my ceiling need repair afterward?
Possibly, depending on how long water has been coming in. We point out interior damage we see so you can plan for it.
Could the leak be from inside the flue?
Rain entering an uncapped flue can show up at a fireplace. Internal flue or fireplace issues should be checked by a qualified chimney safety professional.
Is the leak inspection free?
Yes. Leak inspections and estimates are free.
Request Your Free Chimney Leak Inspection
Tell us about your project, upload photos if available, and choose your preferred inspection date and time.
Please note: preferred dates and times are requests until your booking is confirmed.
Prefer to talk? Call or text (551) 241-0470 or email monarchroofingnj@gmail.com.
Water Coming In Around Your Chimney?
Send photos of the stain and the chimney and tell us when it leaks. We will trace the source and give you a free estimate for the repair.