Biohazard Cleanup Portsmouth NH
Certified remediation of unattended death, blood, trauma scenes, hoarding and sewage across Portsmouth - in the historic houses of the South End and downtown, the condos and apartments, and the short-term rental property throughout the city.
Portsmouth has buildings that were standing before there was a United States, and they do not behave like other housing. Wide pine boards over open joists with nothing beneath them. Horsehair plaster on lath. Framing that gives odour a clear run from the cellar to the attic. On top of that, a great many of these houses sit in a historic district where what you may change is not entirely your own decision. None of that makes remediation impossible. It makes it work that has to be planned by someone who has opened one of these floors before.
What We Do
We remediate scenes that are not safe to clean with household products and a mop - blood, decomposition, sewage, animal waste and infectious material. Containment goes up first, the contaminated material comes out, the structure is disinfected and verified, and the waste leaves under manifest.
A death discovered days or weeks later. Fluids reach through flooring into subfloor and framing, and odour travels through the whole building, so the work goes as deep as the contamination does rather than as deep as it looks.
Quiet, fast and complete, usually for a family who has just lost someone. We work behind closed doors, in unmarked vehicles, and nobody who lives there has to look at the room again before it is finished.
Once police release the property, what investigators leave behind becomes yours to deal with - blood, fingerprint powder, evidence cuts in the drywall, chemical residue. We take all of it.
After an accident, a fall, a medical event or an injury at work. Blood is treated as potentially infectious whoever it came from, and that is what separates a remediation from a wipe-down.
Years of accumulation, often with animal waste, spoiled food and pest activity underneath it. We work at the occupant's pace and nothing is thrown away that they have not agreed to.
A backed-up main, a failed septic line or a flooded basement. Black water carries the same pathogens as raw waste, so porous material that has absorbed it comes out rather than being dried in place.
Droppings, urine, nesting material and carcasses in attics, basements, crawl spaces and camps. Dried rodent waste becomes a respiratory hazard the moment it is disturbed, which is why it is not a shop-vac job.
Homes, offices, schools and vehicles after a confirmed illness - C. diff, MRSA, norovirus, hepatitis, influenza. EPA-registered product, applied for the dwell time the label actually requires.
What We Clean
Two rooms can look identical and need completely different work. What matters is which material is contaminated, how porous it is and how long it has been there - because fluid on a sealed tile floor is a day's work, and the same fluid in old pine boards is a floor coming out.
Potentially infectious
Treated as infectious regardless of source. The visible pool is rarely the extent of it: blood wicks under baseboard, along floor seams and down through subfloor joints, so the area we open up is larger than the area you can see.
How we handle it: Containment, porous material out, disinfect, verify
Fluid, gas and insect activity
Decomposition produces fluid, gas and insect activity, and all three move. Odour is not a smell sitting in the air; it is residue on and inside materials, and it comes back if the source is only masked.
How we handle it: Deep demolition, source removal, odour treatment
Category 3 water
Raw sewage and any flood water that has contacted it. Carpet, pad, drywall below the water line and anything particleboard has absorbed it and is not salvageable, whatever a drying company tells you.
How we handle it: Extract, remove porous material, antimicrobial, dry
Airborne when disturbed
Dried droppings and urine become airborne the moment somebody sweeps them, which is the one thing nobody should do. Common in northern New Hampshire attics, barns, camps and any building left closed for a season.
How we handle it: HEPA containment, wet removal, insulation out
Mixed hazard
Rarely one hazard. Under the accumulation there is usually some mix of animal waste, spoiled food, pests and sometimes human waste, and the biohazard layer has to be separated out and handled on its own terms.
How we handle it: Sort with the occupant, biohazard layer separately
Surface contamination
A confirmed illness in a household or workplace, or the residue first responders and investigators leave behind - fingerprint powder, tear gas, extinguisher chemical. Surface work, but it needs the right product and the right dwell time.
How we handle it: EPA-registered product, labelled dwell time, wipe-down
How It Works
Nothing here is improvised on the day. The questions on the phone decide the crew and the equipment, and the work on site follows the same order whether it is one room in a city three-decker or a lake camp that has been closed since October.
What happened, where, who owns the property, whether police or the medical examiner has released it, and whether there is an insurance claim. That is enough to dispatch.
We walk the scene, find the real extent of the contamination rather than its visible edge, and give you a written scope and price before anything is touched. No charge for this.
Plastic barriers across the openings, negative air machines running, HEPA filtration, and the crew in full PPE. This is what keeps the contamination inside the one room it is already in.
Contaminated porous material comes out - flooring, subfloor, drywall, insulation, furniture - into sealed, labelled containers. We cut back to material that is clean, not to material that looks clean.
Hospital-grade disinfectant on every affected surface for its full dwell time, then odour treatment at the source. Fogging and ozone are finishing steps, never the fix.
Surface testing where the job calls for it, waste manifests and photographs for your file, and a written scope your insurer can read. We tell you plainly what needs rebuilding.
Standards and Compliance
Biohazard remediation is not an unregulated trade. A crew that cannot name the standard it works to, or tell you where your waste went, is a liability you inherit as the property owner. These are the six things worth asking any company you call, including us.
Local Notes
The age of the building decides most of it here, and in this city the age is often measured in centuries rather than decades.
There is frequently no subfloor at all - the finished floor is the structure. Fluid that reaches a board seam goes straight into the joist bay and onto whatever ceiling is below, so these are rarely single-room jobs once anything has had time to travel.
Horsehair plaster holds odour, and the framing in these houses runs uninterrupted between floors. A smell on the second story commonly has its source in the cellar, and treating the room it is noticed in achieves nothing.
What can be removed and what has to be replaced in kind is not always the owner's choice downtown. We scope with that in mind and document the original material properly, because in a protected building the photographs matter later.
A good deal of Portsmouth property is let short-term or occupied part of the year. Both mean problems can go unnoticed between stays, and both mean somebody usually wants the place back in service by a specific date.
Stone and brick cellars with dirt or rough floors, which absorb in a way a modern slab does not. Where anything has reached one, it is a materially different scope from the same event over concrete.
Cost
Priced per job, by what has to come out and how far the contamination reached, rather than by the hour. Here is where our work usually lands - and on most covered claims this is your insurer's bill rather than yours.
Most jobs land in a predictable band. A single-room blood or trauma cleanup typically runs $1,500 to $5,500; an unattended death found within a few days is usually $3,000 to $7,500; hoarding and advanced decomposition go higher, because far more has to come out.
| Type of cleanup | What it usually runs |
|---|---|
| Blood or bodily fluid cleanup, one room | $1,500 - $3,500 |
| Suicide or trauma scene, one room | $2,500 - $5,500 |
| Crime scene cleanup | $2,500 - $7,500 |
| Unattended death, found within days | $3,000 - $7,500 |
| Unattended death, advanced decomposition | $7,500 - $20,000 |
| Hoarding and gross filth cleanup | $5,000 - $25,000 |
| Sewage backup, Category 3 water | $2,500 - $10,000 |
| Rodent or animal waste remediation | $1,200 - $5,000 |
| Infectious disease disinfection | $600 - $3,000 |
These are the ranges we work in, not a quote. Where your job lands inside one comes down to the seven factors below - and on a covered claim most of it is your insurer's bill, not yours. Tell us what happened and we will price the actual job.
What Moves the Number
Nothing on this list is a surprise charge. They are the things we assess on site, and they are the reason an honest price cannot be given down the phone without seeing the scene.
| What we assess | How it moves the quote |
|---|---|
| How long it was there | The single biggest factor. Hours means a surface job; weeks means subfloor, framing and sometimes structure. |
| What the material is | Sealed tile and concrete clean up. Old pine boards, carpet pad, particleboard and insulation absorb, and come out. |
| How far it spread | Fluid travels under baseboard and down through floor seams, and odour travels through the whole air volume. |
| Volume to remove | One room of flooring is a different disposal weight from a hoarded three-bedroom house. |
| Access and the route out | A third-floor walk-up, no parking, a camp at the end of an unplowed road. All of it adds crew hours. |
| Odour work needed | Source removal is the fix; sealing and treating what cannot be removed is extra time on top of it. |
| Testing and documentation | Surface verification, clearance testing, and the written scope an insurer or a court will want. |
Insurance and Billing
People put off calling because they think they are about to pay twenty thousand dollars. Usually they are not. Standard homeowner and commercial property policies treat trauma and biohazard remediation as a covered loss, and several carriers have a specific allowance for it.
You pay your deductible and we invoice the insurer for the rest. The scope, the photographs, the product records and the disposal manifests go into the file in the form adjusters expect to see.
A property loss does not have to be authorised before it is made safe. We document everything from the first photograph so the claim stands up afterwards, and we can speak to your adjuster directly.
Where a death or a violent crime is involved, New Hampshire's victims' assistance program may cover cleanup costs for the family. We will tell you whether your situation is likely to qualify and what has to be filed.
Why a Remediation Firm
The reason this is not a cleaning job is that the hazard is invisible, it is infectious, and the law has an opinion about where the waste goes. Here is what actually differs.
| What differs | Certified biohazard crew | Janitorial or cleaning service | Doing it yourself |
|---|---|---|---|
| Bloodborne pathogen training | Required and current | Rarely | No |
| Containment and negative air | Standard | No | No |
| Fit-tested respirators | Every technician | No | No |
| Finds what you cannot see | Opens up to clean material | No | No |
| Waste disposal | Licensed, under manifest | Household trash, usually illegal | Household trash |
| Odour outcome | Source removed | Masked, returns | Returns |
| Insurance documentation | Scope, photos, manifests | An invoice | None |
| Who carries the exposure risk | Us, insured | Unclear | You and your family |
The part that catches people out is disposal. Putting regulated waste into a household bin or a rented dumpster is not a shortcut, it is a violation that follows the property owner - and the odour almost always comes back anyway, because the source is still under the floor.
Why Us in Portsmouth
An old Portsmouth house punishes assumptions. A crew expecting plywood under a finished floor finds open joists and a ceiling below. A crew expecting drywall finds plaster and lath that cannot be cut back the way drywall can. The result is either damage that did not need to happen, or a job declared finished with the source still in place.
We scope these buildings for what they are, lift and replace in kind where that is what the fabric and the district require, and document the original material before anything moves.
No charge to assess the scene, and nothing is touched before you agree the price.
Open joists, plank floors, plaster and lath. We plan for them at the assessment rather than finding them with a saw.
We take out what is contaminated and no more. In a building with original fabric that restraint is worth real money and is not recoverable afterwards.
Photographs and records of what was there before anything came out, which is what a historic district review or a future buyer will ask for.
Unmarked vehicles, no branding, containment inside. Downtown has pedestrians at every hour, and we plan the timing accordingly.
Portsmouth Questions
Owners of old houses tend to ask better questions than anyone else we deal with. Ask them on the phone and we will answer properly.
(866) 786-3078The bands are the same as anywhere: $1,500 to $5,500 for a single-room blood or trauma cleanup, $3,000 to $7,500 for an unattended death found within days.
Portsmouth's older buildings tend to land higher, for a structural reason rather than a postcode one. With no subfloor and open joists, the floor below is usually involved, and replacing original material in kind costs more than replacing a modern equivalent.
Contaminated material has to come out regardless - that is a health matter, not an aesthetic one. What is constrained is usually how it is replaced, and sometimes whether certain original fabric can be altered at all.
We keep removal to the minimum the contamination requires and we photograph and record everything before it moves, which is exactly what a district review will want to see.
Because the framing in these houses runs uninterrupted between floors. Odour travels the stud and joist bays and surfaces wherever it finds a gap, which is often a storey or two from the source.
It is the single most common reason a Portsmouth cleanup gets done twice. We find the source before anything is removed rather than treating the room where the smell is worst.
Same day for Portsmouth and the Seacoast. I-95 and the Spaulding Turnpike make this an easy part of the state to reach at any hour.
Downtown parking and access are the practical constraint rather than the drive, which is why we would rather agree where the vehicle can stand before we set off.
Yes. From Portsmouth we cover Greenland, New Castle, Rye, Rye Beach, North Hampton, Stratham, Durham and Newmarket routinely, and the rest of the Seacoast from the same crews.
Several of those have a high proportion of seasonal property, which brings its own pattern of problems found late. We are used to it.
That depends entirely on what has to come out, and in an old building that answer takes an assessment rather than a phone call.
Tell us the date you want it back and we will tell you honestly whether it is realistic. Where it is not, we will say which parts have to be finished before anyone can stay and which can follow.
Yes, often significantly. Stone, brick and dirt cellar floors absorb in a way poured concrete does not, so remediation there goes further than wiping a surface.
It is also where the air of the whole house originates, which is why a cellar problem so often announces itself as a smell two floors up.
The vehicles carry nothing and the crew wears nothing that names the trade. Containment is built inside the house and waste leaves on a planned route.
Downtown has people walking past at most hours, so timing is part of the plan rather than an afterthought, and we will work to whatever hours suit you.
One phone call, day or night. You do not need to describe it well, and you do not need to have decided anything yet. We will tell you what is involved and what it costs.
Service Area
Portsmouth anchors the Seacoast, with the coastal towns south of it and the Great Bay towns inland. The list runs outward from the city.