Home / Repeat Leaks
Why Your Commercial Roof Keeps Leaking After You Had It Fixed
If the same roof has been repaired three times and still leaks, the repairs were probably fine. The diagnosis was not. Here is why that happens so often, and what a proper search looks like.
- Free, photo-documented roof assessment
- Restore and replace numbers, every time
- Warranties honored the full term, up to 20 years
Certified To Install
You have probably
been here before.
The leak keeps coming back.
It gets patched, it holds through one dry spell, and it is back the next time the wind drives rain the wrong way.
We find where the water actually gets in before anyone quotes you a system.
The replacement quote made you wince.
A full tear-off was quoted on a roof that may not need one, and nobody showed you the condition of the deck.
We say so when a roof does not need replacing, even though replacing it pays us more.
You were talked over, not talked to.
Mil thickness, ponding ratios, a system name you were told to trust. You are responsible for the building and cannot check a word of it.
Nothing happens on your roof without you knowing first. That is the rule here, not a slogan.
That is the one that costs the most and it is the reason this company exists. The contractor who came in sixty thousand dollars cheaper than us on a roof nearby is no longer trading. We are the ones installing the replacement.
Ask us who services your roof in year three. It is the only question on this page we can answer with a name.
What Is Usually Happening
A repair gets made where the water appeared. It works for a while. Then the same room leaks again, or a different one does, and the roof gets a reputation for being beyond help.
Almost every time we take one of these apart, the repairs were competently done. They were just done in the wrong place, because nobody traced the water back to where it got in. The diagnostic guide covers the symptoms in more detail.
Find the Path, Not the Puddle
A proper search is not glamorous. It is walking the whole roof, looking at every detail, scanning for what is wet underneath and thinking about where water would run on this particular deck.
It takes longer than a patch and it ends the cycle, which is the difference between spending money on a roof and spending it repeatedly on the same leak.
Five Reasons a Repaired Roof Leaks Again
The patch was put where the stain was.
Water enters at a weak point and travels before it drops. Patching the area around the ceiling stain seals a piece of sound roof and leaves the entry point open, so the leak returns with the next matching weather.
There is more than one entry point.
Roofs of a certain age rarely have exactly one fault. Fix the worst and the second one becomes the leak. It feels like the repair failed. It did not.
The insulation is already wet.
Once water is in the insulation it moves sideways and comes out somewhere else entirely, sometimes months later. Sealing the roof above it does not dry it out, and the roof keeps producing water it is no longer letting in.
The detail was resealed, not rebuilt.
Sealant at a curb or flashing is a maintenance item, not a repair. Reapplied over a joint that is actually moving, it lasts until the next real temperature swing.
Somebody has been on the roof.
New leaks that appear right after work on rooftop equipment are usually caused by it. It is worth knowing who has been up there and when.
Four Steps to Actually Finding It
Ask when it leaks
Driving rain, heavy rain, thaw or all of them. The pattern narrows it down faster than anything we can see on a dry day.
Walk the whole roof
Not just the area above the stain. Every seam, curb, penetration and termination, because the entry point is frequently a long way from the symptom.
Scan for wet insulation
So the map of what is actually wet drives the scope, rather than what is visible from the surface.
Give you the photographs
Marked up, so you can see the entry point and the path rather than take our word for it.
Repeat Leak Questions
Straight answers on cost, timeline, and what a restoration actually involves. No jargon, no sales pressure.
A free, photo-documented assessment and honest numbers on restore versus replace.
I have had it patched three times. Is the roof finished?
Not necessarily, and this is worth being clear about. Repeated failed patches usually indicate a diagnosis problem, not a dead roof. A full walk plus a moisture scan tells you whether the deck and insulation are still sound, and a surprising number of much-patched roofs restore perfectly well.
Why can nobody find it?
Because finding it requires walking the entire roof and thinking about the path, and a quick repair call is not scoped to do that. It is not usually incompetence, it is a job priced for twenty minutes on the area above the stain.
Should I just replace it?
Maybe, and we will tell you if so. But get the assessment first, because the difference between the two answers is large and it turns on facts that can be established in an afternoon. Restoration versus replacement sets out where the line falls.
Could my HVAC contractor have caused it?
It is one of the most common causes we find. Equipment work, conduit and penetrations left undetailed cause new leaks on sound roofs constantly. If a leak started shortly after any work up there, say so, because it points us straight at it.
Will a coating fix a roof that keeps leaking?
Only after the causes are dealt with. Wet insulation gets cut out, moving details get reinforced properly, then a seamless system goes over the whole roof so there are no field seams left to open. Coating over unresolved faults just buries them.
Start With the Truth About Your Roof
Request your free, photo-documented roof assessment. Honest options, firm numbers, and a roofer who will still be here next year.
Free assessment · Photo-documented · No obligation, no pressure