San Jose, CA Leak Detection & Consulting
Finding the True Source of Water Intrusion in San Jose Commercial Buildings
Building Envelope Leak Detection in San Jose, CA
With a short rainy season, San Jose leaks can go unnoticed for most of the year and then appear all at once in the first big storm. Water may slip through a dried-out joint between tilt-up panels, past a worn window seal on a downtown office, or under loose flashing around rooftop equipment, then run along the structure before it shows up somewhere else. Patching the stain does not stop it. Presto Restoration uses controlled testing and close inspection to find exactly where water gets in, with more than 25 years of experience on offices, R&D buildings, hospitals, campuses and historic properties. In San Jose, the goal is to fix the cause once.
OUR DIAGNOSTIC METHODS FOR SAN JOSE BUILDINGS
We choose the tests that answer the questions your San Jose building raises and skip the ones that would not change the repair.
Since it rarely rains for much of the year, we bring the rain ourselves. Controlled water testing wets one small area at a time while a technician watches inside, showing exactly which joint or seal fails.
Thermal cameras show temperature differences that point to wet insulation and air leaks behind walls and roofs.
Moisture readings show how far water has spread, and follow-up readings confirm repaired areas are drying.
Drones give us a close, safe look at upper walls, parapets and large roofs, revealing failed sealant and loose flashing.
If the evidence is still unclear, we open a small, controlled section to look at the flashing, insulation and framing directly, then close and seal it.
We size each investigation to the problem, from one leaking window to repeat leaks across a campus, and explain why every step is included.
How Diagnostic Work Fits Into Your San Jose Restoration Project
Every Presto project in San Jose begins by working out how and where the building is failing, so the repair plan rests on evidence.
Exterior Survey & Leak History
We learn when and where leaks appear from your staff and check the most likely entry points.
Diagnostic Testing
Focused tests prove each entry point before any repair is written up.
Report & Scope
Findings are written up with a prioritized repair scope.
Restoration Execution
Our crews make the repairs, from panel joints and flashings to concrete and coatings.
Verification & Closeout
Where possible, we test the repaired area again to confirm it stays dry.
Need to Track Down a Leak in Your San Jose Building?
If your San Jose building leaks every winter, or keeps leaking after repairs, call us or request a quote. Our team will respond to explain how an investigation leads to a lasting fix.
Why San Jose Property Managers Choose Presto for Leak Detection and Consulting
Diagnostic-First Restoration Philosophy
We Don't Sell Unnecessary Services
25+ Years of Restoration Experience
Fully Insured Nationwide
Our Local San Jose, CA Support Network
Once a leak is fixed, regular checks keep it from coming back. Presto works with a local support network so San Jose owners can keep up with that routine care.
For routine upkeep and everyday facility support, owners can also contact our sister companies:
Building Restoration San Jose: Local exterior repairs for San Jose buildings.
Building Maintenance San Jose: Ongoing maintenance that keeps San Jose buildings dry.
Building Services San Jose: Everyday commercial building support across Silicon Valley.
Recent Commercial Restoration Projects in California
Browse Presto’s California glass, stone and facade restoration work.
San Jose Leak Detection & Consulting FAQs
Does Presto offer leak detection as a standalone service in San Jose?
No. Our leak investigations are part of larger commercial restoration projects, which typically start at $50,000. For an inspection report alone, a specialty engineering firm is the better fit.
What methods does Presto use to find leaks in San Jose buildings?
Controlled water testing, infrared thermography, moisture mapping, drone inspection and, when needed, small investigation openings.
Why does diagnostic work matter before restoration?
Repairing the wrong component wastes money and leaves the leak in place. Confirming the entry point first makes the repair last.
Does Presto provide expert witness or litigation support?
No. Presto does not provide forensic engineering, expert witness testimony or litigation support, and we recommend a specialty forensic engineering firm for that work.
What does a diagnostic report include?
Photographs of what we found, the confirmed entry points, test results and a repair plan in priority order.
How long does diagnostic work take?
About a day or two for one problem area, or a couple of weeks for a full study of a large building.
Other San Jose Building Restoration Services
Stop San Jose Leaks at Their Source
If your San Jose building leaks every winter no matter how often it is patched, the real source is probably still hidden. Tell us what you are seeing, and we will help you plan the testing and repairs that stop it.
Call 1-800-785-9927 or Request A Quote online.






