COS Water Damage Restoration delivers end-to-end Water Damage Restoration in Holliston — from the emergency call through the final walkthrough, with one certified team, one point of contact, and one transparent price.
Locally based for fast, reliable response.
Industry credentials that matter.
No surprises — flat rate, in writing.
We file, document, and follow the claim to settlement.
Here's what separates COS Water Damage Restoration's Water Damage Restoration service from every other option in Holliston.
Every technician holds active MA contractor licensing and IICRC WRT certification. Full general liability and workers' comp coverage is in force on every Holliston job.
Locally staged equipment and crews mean our Holliston response time beats out-of-area contractors every time.
We quote in writing before we start. What you approve is what you pay.
Our reputation in Holliston is one job at a time. We stand behind every single one.
Our Holliston Water Damage Restoration team handles every phase of recovery in-house: no subcontracting, no coordination gaps, no handoff problems.
The moment your call connects, our Holliston restoration dispatcher starts building your response. Extraction crews arrive with truck-mounted systems capable of removing high volumes of water rapidly — limiting saturation time and reducing the overall restoration scope.
Thermal imaging cameras and calibrated moisture meters map the full extent of water migration in your Holliston property — identifying affected wall cavities, subfloor assemblies, and ceiling materials that aren't visible on the surface. A complete damage picture drives a more accurate scope and a faster insurance claim.
Drying isn't complete until the numbers confirm it — not when a certain number of days have passed.
Antimicrobial treatment is applied to all moisture-exposed structural surfaces as a standard preventive step in every Holliston Water Damage Restoration job. Where mold growth is identified, IICRC S520-compliant remediation — with HEPA containment, negative air pressure, and clearance testing — is performed before reconstruction begins.
Our Holliston claim coordinators build your documentation file from day one: structured photo evidence, moisture data logs, equipment placement records, and an Xactimate scope of work that matches your carrier's estimating platform. We file, communicate with your adjuster, and follow the claim through to settlement so you don't have to.
When drying is confirmed complete, our licensed Holliston reconstruction team handles all rebuild work — drywall, flooring, painting, trim, structural framing — under the same project manager who ran the restoration phase. No handoff to an unknown subcontractor, no coordination gap, no restart of the communication process.


Call +1-844-499-0972 any time — a live Holliston dispatcher answers immediately, gathers the details, and deploys the nearest crew. No voicemail, no automated queue, no call-back-tomorrow policy.
Our Holliston crew targets on-site arrival in 60 minutes or less, staging extraction equipment and containment supplies during transit so they're productive the moment they arrive.
No work starts without your written approval of the scope and cost.
Written satisfaction guarantee on every Holliston job.



"Our Holliston business had a roof-to-slab water event on a Thursday night. By Friday morning COS Water Damage Restoration had extracted everything, staged drying equipment, and given me a documented scope I could hand directly to my adjuster. We were operational again the following week. Truly professional."
"The insurance side of a water damage claim is overwhelming. COS Water Damage Restoration's Holliston team handled everything — filed the first notice, attended the adjuster visit, and got us a fair settlement. I didn't make a single insurance phone call myself."
"Mold discovered during our Holliston renovation led us to COS Water Damage Restoration. The remediation was thorough, the clearance report was accepted by our contractor and insurer on the first submission, and we were back on schedule within the week."
Our Holliston-based crew serves the surrounding area — if you're not sure whether we cover your location, call +1-844-499-0972 for instant confirmation.
Water damage in Holliston gets worse every hour. Our local crew is on standby and can be at your door in under 60 minutes — call now.
📞 Call +1-844-499-0972 — Holliston Emergency Response24/7 Live Dispatch · Licensed & Insured · Free On-Site Assessment · Holliston, MA