Free visual inspection and a written scope of work before any mitigation begins - photos, moisture readings, and drying logs go in your claim file
The scope we write is the scope we bill. Anything new gets shown to you, in writing, before we touch it.
Fast, Reliable Storm & Disaster Restoration Across Sunnyvale
Storm damage in Sunnyvale moves fast, and so do we. Most storm and flood restoration calls in Sunnyvale can be answered by a live person at (629) 213-4606 day or night, with a crew dispatched to your neighborhood typically within 60 to 90 minutes. We know the slab-on-grade ranch homes off El Camino Real, the townhouse clusters near Lawrence Expressway, and the commercial campuses along the 101 and 237 corridors. When a storm hits, the difference between a contained loss and a six-figure claim often comes down to which restoration company answers the phone first. Our Storm & Disaster Restoration team works from a written scope and a photo record, so you know exactly what was found, what it costs, and what we did about it.
Why DryMark Restoration Is Sunnyvale’s Preferred Storm & Disaster Restoration Company
DryMark Restoration has restored more than 12,000 homes since 2011, and the Sunnyvale calls we take tend to have a few things in common. A hidden supply line let go under a 1960s slab foundation. A storm drain backed up near Calabazas Creek and sent water through the back door. A section of roof membrane failed above a server closet. Each one gets the same treatment: a written price before any work starts, a documented photo record on every visit, and a 365-Day Done Right Promise signed under The Haven Standard.
Alicia Brennan founded this company after working as a claims adjuster, and the documentation gap she saw in the field is the problem we exist to solve. Our technicians arrive uniformed, background-checked, and licensed. They record psychrometric data, or the temperature and humidity measurements that dictate how fast materials dry, and they log those readings daily. That log is what turns a restoration invoice into a claim an insurer will pay.
Sunnyvale homeowners read the three-star reviews before they call. We encourage it. What they’ll find is a company that names a price in writing, shows up when it says it will, and leaves behind evidence of every step. We are not the cheapest, and we don’t try to be. We are the one with the paper trail.
Our Storm & Disaster Restoration Services in Sunnyvale

Storm Damage Cleanup
Storm cleanup in Sunnyvale usually starts with a downed tree branch through a window, a section of stucco opened by wind, or water pushing in around a patio door. We extract standing water, remove wet drywall and insulation to the point of dry material, and set up containment so work doesn’t spread dust through your kitchen. Pricing for a contained storm cleanup in Sunnyvale, where we’re removing saturated drywall and setting up professional drying, typically runs $2,800 to $6,500 depending on affected square footage.

Flood Damage Restoration
Flood calls in Sunnyvale cluster around two failure modes: atmospheric river storms overwhelming aging drainage near Calabazas Creek and the low stretches of Lawrence Expressway, and copper supply lines buried in the concrete slabs of 1950s and 1960s ranch homes. Slab leaks are the worst because water wicks upward through the slab for weeks before a homeowner sees anything. On a call off Borregas Avenue, our techs found the homeowner’s first clue was a $400 water bill spike. Moisture had wicked through the slab under engineered hardwood, and by the time we arrived it had begun climbing into wall framing. We core-drilled the floor, deployed under-slab drying mats from Injectidry, and contained the work area to protect original asbestos tile mastic during structural drying. That home returned to pre-loss condition, but only because the drying plan accounted for the slab, not just the surface.

Emergency Board-Up
When a storm blows out a window or opens a hole in a Sunnyvale roof, the first priority is keeping more water and debris out of the structure. We board up damaged openings with plywood and weather barrier, photo-document every condition, and provide a written scope before we leave. Emergency board-up in Sunnyvale typically runs $450 to $1,200 for a standard window or door opening, and $800 to $2,500 for a roof penetration, depending on access and height. Board-up is almost always covered by insurance, and our photo record is formatted for adjuster review.

Roof Tarping
Tarping a damaged Sunnyvale roof isn’t just about throwing plastic over a hole. It’s about sealing the penetration, directing water away from the opening, and documenting the condition so your adjuster can see exactly what was protected and when. We use reinforced poly tarps and secure them with battens fasteners, not loose nailing that rips out in the next wind event. Roof tarping in Sunnyvale runs $800 to $2,000 for a typical single-family home penetration, with pricing confirmed in writing before we send anyone up a ladder.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
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AfterTrusted Brands We Service in Sunnyvale
Sunnyvale is home to one of the densest concentrations of tech headquarters and R&D campuses in the world. Juniper Networks, Synopsys, Fortinet, LinkedIn, Trimble, and dozens of others operate along the 101 and 237 corridors, and many have called us on storm nights when water found a server room or a cleanroom. These are not the same jobs as a flooded laundry room. Even minor water intrusion in a cleanroom triggers business-interruption claims that can run into six figures, and the drying plan has to account for electronics, environmental controls, and ICRA protocols, which is the infection control risk assessment framework used in healthcare-grade environments. We deploy Dri-Eaz and Phoenix drying systems in these spaces because their moisture-removal curves are documented, predictable, and acceptable to commercial adjusters. Some restoration companies default to residential drying in a lab setting. That is how claims get denied.
Common Storm & Disaster Restoration Problems We See in Sunnyvale Homes

- Hidden slab leaks saturating flooring from below. Sunnyvale’s residential core is dominated by slab-on-grade ranch homes built from the late 1940s through the early 1970s. There’s no crawl space to inspect, so water travels up through concrete and into hardwood, tile adhesive, and framing for weeks before the first visible stain appears. By the time we’re called, the affected area is usually far larger than the homeowner expected.
- Aging copper supply lines failing during atmospheric river events. Sunnyvale’s dry season runs six-plus months, long enough for buried copper lines, caulking, and drainage systems to degrade undetected. Then an atmospheric river delivers a third of the year’s ~15 inches of rain in a few days, and every weak point fails at once.
- Pre-1980 asbestos materials complicating storm water extraction. Asbestos-containing floor tile, mastic, and duct insulation are common in Sunnyvale homes built before 1980. When storm water saturates those areas, extraction isn’t a simple pump-and-dry job. Abatement or containment decisions have to be made before structural drying begins, and that changes the scope and the price.
- Flat and low-slope roofs on mid-century commercial buildings. Many of Sunnyvale’s older commercial and R&D buildings use flat roof membranes that pool water and fail at seams during heavy rain. By the time water shows up inside, the membrane has often been compromised for months. We coordinate with roofing contractors to fix the breach before interior drying can hold.
Pricing for Storm & Disaster Restoration in Sunnyvale, CA
Here are honest ranges for what Storm & Disaster Restoration work costs in Sunnyvale’s market. Emergency board-up and tarping run $450 to $2,500 depending on the opening. Flood water extraction and structural drying in a standard single-family room run $1,800 to $4,500. Full storm damage cleanup involving drywall removal, sanitizing, and drying equipment runs $2,800 to $6,500. Slab-leak restoration with core drilling and under-slab drying mats starts around $4,000 and can reach $12,000 or more when wall framing is involved. Commercial server room drying is quoted per square foot and per affected system, with initial scopes typically landing between $5,000 and $25,000. Every one of these prices is delivered in writing before work starts. That is Haven Standard, Clause 1, and there are no exceptions.
We Also Serve Cities Near Sunnyvale

Our crews serve Storm & Disaster Restoration in Sunnyvale and the surrounding communities of Mountain View, Santa Clara, Cupertino, and Los Altos. If your property sits near the Sunnyvale border or you manage multiple sites across the South Bay, one call covers the entire area. Scheduling and dispatch are coordinated from the brand’s San Francisco Bay Area office, with crews stationed locally for Sunnyvale response.
Serving Sunnyvale, CA - Our Local Coverage Area
We’re based in the Sunnyvale area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Storm & Disaster Restoration in Sunnyvale

We contain the affected area and run specialized drying equipment that removes moisture without generating airborne contamination. On tech-campus server rooms, shutdown isn’t always an option. We use containment barriers, HEPA-filtered air scrubbers, and electronics-safe drying protocols coordinated with your facilities team, so critical systems stay running while we pull water out of the space. Call (629) 213-4606 and a live person will start the dispatch conversation immediately.
A slab leak under a Sunnyvale ranch typically takes 5 to 10 days to dry to pre-loss moisture levels once under-slab drying mats are deployed. The timeline depends on how long the leak ran before detection, whether wall framing is involved, and whether original asbestos tile mastic requires containment. We document daily moisture readings throughout, so you can watch the numbers come down. For a specific timeline on your home, call (629) 213-4606.
Yes, but the process changes. Asbestos-containing floor tile and mastic were common in Sunnyvale homes built before 1980. When storm water saturates those materials, we don’t just start ripping them out. We test, contain the area, and either remediate through a licensed abatement partner or design the drying plan around the material. The written scope you receive before work starts will spell out exactly which path applies to your home. Call (629) 213-4606 for a free second opinion on any written estimate.
We can typically have a crew at your Sunnyvale home within 60 to 90 minutes of your call, day or night. Board-up and tarping happen on the first visit whenever access is safe. We photograph everything before and after, and you get a written record of what was done and what it cost. Call (629) 213-4606 and a live person answers, every time.
Yes. We work with commercial adjusters on cleanroom and lab flood claims throughout Sunnyvale’s tech corridor. Business interruption coverage depends on your policy language, but our documentation, including daily drying logs, photo records, and psychrometric data, gives your adjuster the evidence needed to process the claim without back-and-forth. We also review any competitor’s written estimate at no charge. Call (629) 213-4606 to start.
If storm damage has already hit your Sunnyvale property, call (629) 213-4606 now. A live person answers, asks the right questions, and dispatches a crew with a written scope and a photo record. If you’re still planning, call anyway and we’ll walk through what a proper Storm & Disaster Restoration response looks like in Sunnyvale, for your type of property, at your price point. Estimates are free, and the second opinion on any written quote from another company costs nothing.
Written by Alicia Brennan, Owner at DryMark Restoration, serving Sunnyvale since 2011 under The Haven Standard.






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