Not all water extraction is the same. Consumer-grade shop vacuums pull surface water while saturation continues working into subfloor and wall assemblies. COS Water Damage Restoration's Onset Water Extraction service deploys truck-mounted commercial systems rated for high-volume output — combined with thermal imaging and moisture metering that maps where the water you can't see has traveled.
Removes water faster than any portable unit.
FLIR thermal cameras reveal moisture in walls and under floors invisible to the naked eye.
Daily readings tracked until drying targets are met.
For deep standing water in Onset basements and crawlspaces before truck-mount transition.
The gap between a good extraction and a mediocre one isn't visible until weeks later — when mold shows up behind a wall that felt dry after a shop-vac cleanup. Here's what makes COS Water Damage Restoration's Onset extraction service different.
Every Onset job gets truck-mounted extraction rated for high-volume output, thermal imaging cameras that reveal sub-surface saturation, and moisture meters that document conditions at every sensor point. Consumer rental equipment doesn't come close.
Our Onset crews are positioned locally — not dispatched from a regional hub. We target 60 minutes on-site from your call, with equipment staged during transit so we're working within minutes of arrival.
WRT certification isn't a formality — it determines whether your drying plan is based on psychrometric science or guesswork. Every Onset technician we deploy carries active WRT certification and applies calibrated, documented methods.
On arrival in Onset, our crew assesses, prepares a written Xactimate-based estimate, and reviews it with you before a single piece of equipment is operated. The approved number is the invoiced number.
COS Water Damage Restoration's Onset Water Extraction team handles every water extraction scenario — from residential flooding to large commercial events — with equipment and technique matched to the specific situation.
For large-scale events in Onset, the right equipment makes the difference between hours and days of extraction time.
Leaving hidden moisture behind after extraction is how Onset properties develop mold three weeks after a "completed" job by another company.
Hardwood floor salvage is a specialty — not every water extraction crew in Onset has the training or equipment to do it right.
Crawlspace water left in place creates lasting structural moisture problems and serves as a primary mold incubation environment.
Carpet may be salvageable when extracted quickly; pad is typically replaced regardless. Our Onset team makes this determination honestly, based on the data.
Commercial and multi-family properties in Onset present extraction challenges that residential scenarios don't: larger square footage, multiple affected units, infrastructure protection requirements, and business interruption cost. Our Onset commercial extraction team scales crew and equipment to match the loss — deploying multiple extraction units and coordinating logistics across floors and units with a single dedicated project manager tracking the full scope.


Live Onset dispatch — no voicemail, no hold queue, no automated menu.
Our crew arrives with truck-mounted and portable extraction equipment configured for your reported scenario. Equipment is staged during transit so the crew is productive immediately on arrival — not spending 20 minutes unloading and setting up in your driveway.
Science-based scope assessment means the estimate is accurate, not a rough guess that changes after the fact.
We don't leave after extraction — we stay to set up drying so the project transitions without delay.



"The thermal imaging step was what impressed me most. Our Onset property looked dry to me, but their camera showed moisture migration behind the baseboard on two walls I never would have suspected. If that had been left in place and the drying missed it, we'd have had mold within the month. Very glad they do this as standard procedure."
"As a property manager in Onset with several units, I need water extraction contractors who document everything to adjuster standards and can scale to a multi-unit event. COS Water Damage Restoration has handled two multi-unit extractions for me and both times the documentation was clean, the coordination was smooth, and the bill matched the estimate. That consistency is hard to find."
"The written estimate before extraction was a first for me — every other contractor I've used has just started working and handed me a bill. COS Water Damage Restoration's pricing conversation happens before the equipment turns on. That's the right way to do it and I won't use anyone who doesn't operate this way."
COS Water Damage Restoration provides professional Water Extraction in Onset and throughout the surrounding MA communities. Call +1-844-499-0972 to confirm same-day coverage at your address.
COS Water Damage Restoration's Onset Water Extraction crew is on standby. Call +1-844-499-0972 for a fast, thorough, documented extraction — with written pricing before we start.
📞 Call +1-844-499-0972 — Onset Extraction Team24/7 Dispatch · IICRC Certified · Truck-Mounted Equipment · Onset, MA