A flood in Stratham doesn't get better by waiting, and the cost of delay is measured in thousands of dollars of preventable damage. COS Water Damage Restoration's Stratham-based Water Damage Repair teams are deployed locally in Stratham so response is fast every time.
Positioned in Stratham for fast local response every time.
Certified professionals, not unlicensed laborers.
No hidden fees, no last-minute line items.
Works with all major NH insurers.
Water damage in Stratham moves on its own timeline, which is why our local dispatch operation stays fully staffed around the clock, every day of the year — so that when the call comes in at 2 a.m., the crew heading to your door is already mobilized.
We bring enterprise-grade extraction and drying equipment to every Stratham job — not the rental-store grade equipment that leaves moisture in wall cavities and under flooring that causes mold weeks after the job was supposedly done.
If you've already experienced water damage in Stratham and need someone to respond right now, call +1-844-499-0972 — our local crew is ready.

Our integrated service model means Stratham property owners have one phone number, one point of contact, and one company responsible for the outcome from start to finish.
Our truck-mounted extraction systems can pull high volumes of water in a fraction of the time it would take with consumer-grade equipment — getting the visible water out fast while our moisture detection team maps the water you can't see yet. Call +1-844-499-0972 the moment you discover water in your Stratham property — our dispatcher will guide you through immediate protective steps while our crew is already on the way.
Our residential restoration teams in Stratham are experienced across the full range of home types found in the area — older homes with original hardwood and plaster, newer construction with engineered materials and finished basements, and everything in between. For Stratham homeowners with original hardwood floors, our floor mat drying systems often allow us to dry hardwood in place rather than requiring replacement — a significant cost savings and a result that preserves the character of your home.
We work in occupied buildings, schedule around your operating hours when it's possible to do so safely, and produce the detailed loss documentation that commercial insurance adjusters require — all as standard practice, not a premium option. Whether the loss is a small office suite or an entire floor of a commercial building, COS Water Damage Restoration's Stratham commercial team has the experience and equipment to handle it.
Many Stratham homeowners discover mold weeks or months after a water event that they thought had been fully addressed, because invisible moisture remained in wall cavities, beneath flooring, or in attic insulation after a surface-only cleanup. Post-remediation air quality testing provides objective confirmation that the remediation was successful, and the written clearance report we issue becomes part of your property's maintenance record.
Building new drywall or flooring over materials that are still holding excess moisture leads to cracking, warping, fastener failure, paint peeling, and eventually mold growth — which is why our Stratham drying crews take measurement seriously and don't sign off on a project until the numbers confirm completion. We deploy industrial LGR dehumidifiers and high-velocity air movers in a calculated configuration based on the square footage, material types, and psychrometric conditions specific to your Stratham property — not a one-size-fits-all equipment drop.
Stratham property owners dealing with water damage face two simultaneous challenges: the physical restoration of their property, and the administrative challenge of filing and navigating an insurance claim. If your adjuster's initial settlement offer doesn't fully account for the documented scope of loss, we prepare and file a supplement with supporting evidence — a step that many homeowners don't know they can take and that frequently results in additional covered compensation.



Our Stratham crew is on standby — call now and someone is heading to your door in under an hour.
📞 Call +1-844-499-0972 — Stratham Emergency LineWhen water damage hits in Stratham, the decision you make in the first 30 minutes — who you call and how fast they show up — will define the entire scope and cost of your restoration experience.
Local presence means faster arrival, familiarity with Stratham neighborhoods and buildings, and a direct accountability to the community we serve.
Speed of response is the single most controllable factor in limiting water damage costs — and we've optimized our Stratham operation around it.
Our Xactimate-based estimates are formatted the way your NH insurance carrier expects to receive them, which means no disputes and faster claim processing.
IICRC WRT certification is the baseline requirement for every technician we deploy in Stratham — no unlicensed laborers, no trainees working without supervision.
Stratham jobs get industrial LGR dehumidifiers, truck-mounted extraction, thermal imaging cameras, and moisture mapping arrays — not residential-grade rental equipment.
We file the claim, deal with the adjuster, and fight for a fair settlement — so you don't have to learn the insurance claims process on top of dealing with a flooded property.
Five-star reviews are earned, not purchased — and they reflect what happens when every technician takes personal pride in the outcome of every job.
Your Stratham job gets a single dedicated project manager — one person you can call, who knows your file, who is accountable for your outcome from first dispatch to final walkthrough.
Every Water Damage Repair job in Stratham follows the same structured process — one we've refined over thousands of local jobs to be as fast, thorough, and transparent as possible.
You call +1-844-499-0972 and a live Stratham dispatcher answers — no voicemail, no call tree, no waiting on hold during your emergency.
Thermal imaging cameras reveal moisture in wall assemblies and under flooring that isn't yet visible on the surface — giving us a complete picture of the damage before we build the response plan.
With the scope confirmed and your approval in hand, extraction begins immediately using the highest-capacity equipment appropriate for the situation.
Equipment stays until documented readings confirm completion — not until a certain number of days has passed.
Pre-existing or emerging mold growth is addressed by our IICRC-certified remediation specialists with containment, HEPA air scrubbing, material removal, and clearance testing.
Our licensed reconstruction team handles all Stratham rebuilding work — drywall, flooring, painting, trim, and structural repairs — under the same project management as the restoration phase.
When a restoration company sends a crew to your Stratham property who has never worked in the area, the difference in performance is real — and it shows up in ways that matter: slower navigation to your address, unfamiliarity with local building code requirements that affect how drying and reconstruction are approached, no relationship with local supply vendors that allows materials to be sourced quickly, and no reputation to protect within the community they're serving.
Stratham's mix of housing stock — from older historic homes to newer construction developments — presents a range of material and structural challenges that our crews encounter regularly.
Stratham's weather patterns contribute to the types of water damage events we see most frequently here — and our crews are prepared for the specific scenarios that Stratham property owners face more often than those in other markets.
Water damage restoration costs in Stratham vary based on several factors: the volume of water, the category of water (clean vs. contaminated), the materials affected, the square footage involved, and the extent of mold risk. Most residential water damage events in Stratham fall within a range that homeowner insurance covers significantly, which is why our insurance coordination service is so valuable — we help make sure your policy pays what it should so your out-of-pocket is minimal. Call +1-844-499-0972 for a free on-site estimate with no obligation to proceed — we'll give you a clear picture of scope and cost before you commit to anything.
If you're a property owner in Stratham who has just discovered water damage — whether it's an active flood or moisture you noticed during an inspection — your best first call is +1-844-499-0972.
📞 Call +1-844-499-0972 — Free Stratham Assessment

Real reviews from Stratham, NH property owners who called COS Water Damage Restoration when water threatened their homes and businesses.
"I run a small business in Stratham and had a toilet supply line failure on a Sunday night that flooded my office suite and spread into the common hallway. I called COS Water Damage Restoration, who answered immediately, and had a crew at the building in under an hour. They worked through the night to extract the water and set up drying equipment before we opened Monday morning. My employees came in to a building that was functional — inconvenient, but operational. The insurance claim was handled entirely by their coordinator and settled in less than three weeks. I recommend them to every business owner I know in Stratham."
"The burst pipe situation in our Stratham rental unit was a nightmare — the tenants called me at midnight, the unit was partially flooded, and I had no idea how bad it was. COS Water Damage Restoration's crew was on site before I could even get there myself. By the time I arrived, extraction was underway and the project manager was already walking through the damage assessment with photos. I had a full scope and estimate in my email before 2 a.m. The restoration was completed on schedule, within the estimated cost, and my tenant was back in the unit within two weeks. Outstanding."
"I had a fear that calling a restoration company would mean getting upsold on everything and being pressured into expensive services I didn't need. COS Water Damage Restoration was the complete opposite of that experience. The technician explained the moisture readings to me at each sensor point, showed me why certain materials needed to be addressed and others could be left in place, and gave me an honest assessment of what the insurance would likely cover versus what might be out of pocket. No pressure, no inflated scope — just honest professional advice and excellent execution. My Stratham neighbors have my standing recommendation for them."
Can't find what you need? Call +1-844-499-0972 any time — a live Stratham specialist will answer.
COS Water Damage Restoration serves Stratham, NH and the surrounding communities with the same fast, professional Water Damage Repair service that has made us the trusted choice for property owners throughout the region.
Don't see your zip code? Call us — our coverage area around Stratham may extend further than what's listed here.
📞 Call +1-844-499-0972 — Confirm Stratham CoverageWater damage in Stratham accelerates with every hour of delay. Our local dispatch is live right now — call +1-844-499-0972 and get immediate help from a crew that knows your city and is ready to go.
📞 Call +1-844-499-0972 — Stratham Emergency Response24/7 Live Dispatch · Licensed & Insured in Stratham, NH · No Voicemail · Free Assessment