Local weather advisory
The National Weather Service has issued a coastal flood advisory covering Berkeley. Heavy rain and drainage loading can expose roof leaks, blocked drains, and ponding water. This is a weather exposure advisory; it does not establish damage to a specific roof.
Do not access a roof during hazardous weather. Protect people first, avoid water near electrical equipment, and request roofing help when conditions permit.
National Weather Service · Updated Oct 28, 2026, 7:20 AM UTC
Commercial roof repair in Kensington from our Berkeley crew: lifted membrane at roof corners and edges secured fast, then repaired back to dry, solid roof.
Service Areas  | Berkeley, CA
When wind peels the membrane back at a roof corner, every rain after that pushes water into the insulation. The first job is usually to secure the corner so it does not get worse. The permanent repair comes after we can see what failed underneath. We repair commercial roofs in Kensington from our base in Berkeley, CA, and we start by deciding what needs to happen today and what can wait for the right weather and materials.
Kensington’s commercial buildings, mostly small shops and offices along Arlington Avenue near the library, each get their own access check. We look at the damaged corner and the room under it, and the building manager tells us how we can get up there to protect it. Our emergency roof repair visits focus on stopping the water. Once the corner is secured, we still need to look underneath before choosing a lasting repair.
On the first visit we find out how much membrane is loose and what is still holding. Loose material flapping in the wind can make getting to the corner tricky, so we plan the approach carefully. The temporary fix has to suit the roof type and the weather that day. We tell the facility manager exactly where the temporary repair is and what it does and does not cover.
Our storm damage roof repair work keeps the emergency fix separate from the permanent one. On a first visit we can usually see the obvious openings, but not whether the insulation underneath got wet. We note that in the report. A return visit in better conditions lets us open things up and look properly. You always know which work is done and which is still ahead.
Membrane can lift because the adhesive let go, the fasteners pulled out, or the edge metal holding it came loose. We look under the opening at the screws, plates, adhesive and edge parts. If the wood nailer or edge metal under the membrane is damaged, it has to be fixed before new membrane goes on. Just pressing the old sheet back down leaves the same weak spot.
Our edge metal and coping repairs tie the membrane into a solid perimeter. If the wood blocking at the edge is rotted, the repair grows to reach good wood. If the structure behind it looks questionable, we recommend having it evaluated rather than assuming more screws will hold. The estimate lists who does what so the new edge is attached to something that will last.
Water can get under a lifted corner without leaving any obvious sign on top. We check the insulation around the opening, and if needed take small cores to see whether it is wet or crushed. Each core answers a specific question and gets photographed before we patch it. That tells us how far the repair has to reach.
Our roof insulation and cover board replacement removes wet material and leaves dry, solid insulation in place. One core shows the condition at that spot only, so we may take another if the signs point that way. The new membrane has to tie into dry, firm roof. If the wet area turns out to be large, the daily work area grows too, and we explain that before you approve the final scope.
Fixing a corner can mean working from the roof and from the ground at the same time. We walk both during the site visit. The manager tells us what is in the room below and how to protect it. Debris and new materials need a clear path, and if there is rooftop equipment nearby, the service contractor may need to be involved first. We only open as much roof each day as we can close up before we leave.
A building on Arlington Avenue gets its own staging plan based on its entrance and frontage. Our reroofing over occupied buildings work includes protecting the space under the repair. If you also have properties in El Cerrito or Albany, we can schedule them together, but each roof keeps its own access and repair plan.
Photos from the first visit show where the temporary repair went and what it looks like. Photos from the permanent repair show what we found under the membrane and how we attached the new edge. Wide shots tie each stage to fixed landmarks on the roof. Anyone checking later can see whether the temporary materials were removed or built into the final repair.
One lifted corner next to an otherwise solid roof usually just needs a focused repair. If edges are loose all the way around, the roof needs a closer look before we price anything bigger. We compare what we found with the rest of the roof and tell you what we confirmed and what we could not see. A bigger project should only follow a bigger, documented problem.
Before we open the corner for the permanent repair, we agree on who gets the photos if we find more damage and who can approve the extra work. If the damage looks structural, it gets evaluated before we cover it up. We only open as much as we can seal again that day.
On later maintenance visits, we check the repaired corner and the rest of the edge. If something has moved or a new opening shows up, we photograph it and note where it is. A new leak inside may come from a different spot entirely, so we look before assuming the old repair failed. Dated photos make that comparison easy.
Kensington’s two small shopping districts and hillside streets mean every property has its own access challenges. We check where a ladder can safely go, where the crew can park, and whether a neighboring tenant needs to know we are coming. Heavy tree cover means leaves pile up in roof drains, so we clear the whole drain line, not just the grate on top. Fire season is a good reason for a seasonal cleanup, but we only recommend repairs for damage we can actually see and photograph.
Let us check the lifted corner and secure it now. You get plain photos and a clear explanation of the permanent repair that should follow.
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