Frozen pipes and basement seepage soak walls and floors. We extract the standing water, set up dehumidifiers and air movers, and take moisture readings every day until the floors and framing test dry.
More about Water Damage
Available 24/7 · Denver and nearby areas
Mold Remediation in Denver, CO
A slow roof leak, a split pipe, or basement seepage can feed mold. Our crew handles mold remediation in Denver, CO, finds the moisture behind it, and dries the space out. Call any time, day or night.
Call (303) 522-327445minutes
IICRC Certified Firm#70120685
We work with all major insurance carriers
Mold help
Mold in Denver homes
Denver’s air is dry, so mold here almost always means a specific leak. The usual suspects are roofs damaged by hail, pipes that freeze when temperatures plunge overnight, and water seeping into basements.
Hail is a big one. The Front Range gets some of the most frequent hail in the country. A roof that looks fine can leak into the attic for months.
Basements and garden-level units are the other hot spot. Window wells that fill during spring storms or snowmelt, plus sump pumps that fail, can soak drywall and carpet below grade where air moves slowly.
Homeowners, property managers, and business owners across Denver, Jefferson, Arapahoe, Adams, Douglas, and Boulder counties call us about mold all year round.
Call Now (303) 522-3274Mold remediation at a glance
What’s included
Tracing hail, pipe, or below-grade leaks, sealing off the area, removing moldy materials, HEPA cleaning, drying, and rebuilding.
Typical timeline
A small spot can be handled in a day or two. A finished basement or attic can take a week or more.
How cost is set
The size of the affected area, what must be removed, any asbestos testing in older homes, and the repairs.
First visit
Call (303) 522-3274A free inspection and estimate before any work starts.
Found mold?
What to do when you find mold
Finding mold is stressful, but you have time to do this right. Acting in the first day or two keeps it from spreading.
Not sure how big the problem is? Call and talk it through with our crew.
Call (303) 522-3274What to do
Look for the water
Check above and around the mold for a drip, a damp spot, or a stain. Stopping the water stops the mold from growing.
Bring the humidity down
Run the air conditioning or a dehumidifier. The EPA recommends keeping indoor humidity below 60%, ideally between 30% and 50%.
Take photos
Photograph the mold and any water damage before anything is cleaned. Your insurance company may ask for them.
Clean small spots the right way
For a patch under about 10 square feet, the EPA says you can usually clean it yourself with detergent and water. Wear gloves, eye protection, and a mask.
Keep sensitive people away
Anyone with asthma, allergies, or a weak immune system should stay out of the area until the mold is gone.
What not to do
Don’t scrub or sand it dry
Dry mold sends spores into the air and through the house. Keep the surface damp while you clean it, or leave it for a pro.
Don’t bleach it and paint over it
Bleach can whiten the surface, but on drywall and wood it doesn’t reach the mold growing inside. Paint over mold peels, and the mold keeps growing underneath.
Don’t point fans at it
Fans blowing across mold carry the spores into other rooms.
Don’t run the heat or air if the mold is in the ducts
The system will blow spores through the whole house. Leave it off until it’s been checked.
Don’t buy a test kit first
If you can see mold, the EPA says testing usually isn’t needed. Spend the money on finding the leak.
Where mold hides
Where we find mold in Denver homes
In Denver homes, mold nearly always traces back to a roof leak, a frozen pipe, or water below grade.
Garden-Level and Basement Units
Window wells, snowmelt, and failed sump pumps soak below-grade drywall and carpet.
Attics After Hail
Hail-damaged shingles let rain seep into insulation and roof sheathing for months.
Bathrooms and Kitchens
Leaking shower valves and supply lines grow mold behind Denver tile and cabinets.
Swamp Coolers and Ducts
Older homes with evaporative coolers can collect moisture in ducts and attics.
Spring Storms and Snowmelt
Heavy spring snow and rain push water against foundations.
Frozen Pipes
Sudden cold snaps can split pipes in exterior walls, soaking insulation and drywall.
How we remove mold
How we remove mold
In a dry city like Denver, mold rarely returns once the leak is fixed. So we start by finding it, whether it’s a hail-damaged roof, a split pipe, or a window well.
We contain the area. Plastic barriers and HEPA air scrubbers keep spores out of the rest of the house and the HVAC system.
We remove what mold has grown into. Moldy drywall, insulation, and carpet come out, and studs and joists are cleaned and treated. In older homes, we can arrange asbestos testing before opening walls.
We dry and rebuild. Denver’s dry air helps, and readings must match a dry room before repairs.
What the signs usually mean
A musty smell in a garden-level unit
What it usually meansMoisture seeping through foundation walls or window wells
What to doHave the walls and window wells checked.
A ceiling stain months after a hailstorm
What it usually meansA slow roof leak feeding mold in the attic
What to doHave the roof and attic insulation inspected.
Spots on an outside wall after a cold snap
What it usually meansA frozen pipe that split and leaked
What to doHave the wall opened and the pipe repaired.
A damp smell from the swamp cooler vents
What it usually meansMoisture and growth in the cooler or ducts
What to doTurn off the cooler and have the system checked.
Black spots behind the toilet or tub
What it usually meansA slow leak at a valve or seal
What to doSmall spots may clean; recurring growth needs a closer look.
A stale odor in a Front Range home with no visible mold
What it usually meansGrowth tucked inside a wall, an attic bay, or below-grade carpet
What to doBook an inspection so we can take moisture readings behind the surfaces.
What can be saved
What can be cleaned and what gets replaced
In Denver homes, cleaning versus replacing depends on the material, how long the leak ran, and how deep the growth went. Here’s the usual pattern, and the inspection confirms it.
Concrete, tile, glass, and metal
Usually cleanedBasement floors and hard surfaces clean well.
Roof sheathing and rafters
Usually cleanedSurface growth from a hail leak can usually be cleaned and sealed.
Brick and block foundation walls
Depends on how deep it goesSurface growth cleans once the seepage is stopped and the wall dries.
Below-grade drywall
Depends on how deep it goesDrywall that wicked water is removed above the wet line; dry sections can stay.
Hardwood floors
Depends on how deep it goesOak and maple floors with surface mold usually clean. Boards that warped from water underneath are swapped out.
Basement carpet
Depends on how deep it goesCarpet in a garden-level unit that grew mold on its backing after seepage is almost always replaced.
Furniture and stored items
Depends on how deep it goesSolid pieces clean; cardboard and fabrics with growth often can’t be saved.
Photos and documents
Depends on how deep it goesA specialist may be able to save them.
Attic and wall insulation
Usually removedBlown-in and batt insulation in Denver attics and walls that grew mold after a hail leak or pipe break is removed.
Carpet pad
Usually removedCarpet pad under basement carpet that wicked up water and grew mold is thrown out.
Cooler pads and filters
Usually removedMoldy evaporative cooler pads and filters are replaced.
Do You Need a Mold Test?
Usually not. If you can see the mold and the cause is clear, like a hail leak or a frozen pipe, testing rarely changes the plan. Testing makes sense when you smell mold but can’t find it, or when a buyer, landlord, or doctor needs documentation.
If testing is useful, we can explain your options and arrange an independent tester for before-and-after results. In older Denver homes, asbestos testing before demolition may also be needed.
Stop the water behind the mold
Other restoration services we offer in Denver
Every job starts with a free inspection and estimate. Here’s how the 24 Hour Flood Pros team helps with each type of damage.
After a fire, soot settles into Denver walls and furniture, and hose water leaves things wet. Soot is acidic and keeps staining surfaces, so cleanup starts early. We remove soot, treat odor at the source, clean what can be saved, and rebuild what can’t.
More about Fire and Smoke Damage
Hail and spring storms damage roofs across the Front Range. We dry the structure, remove damaged materials, and repair the ceilings and walls inside.
More about Storm Damage
Mold in a garden-level unit, a LoDo office under a leaking roof, or a damp shop storeroom needs a plan that protects tenants. We extract, dry, and clean on a plan built around reopening, and we document each step for your carrier.
More about Commercial Restoration
When you’re ready to rebuild, the same crew puts it back together, from drywall to cabinets to the final coat of paint, so there’s no second contractor to hire.
More about ReconstructionDealing with one of these?
Call (303) 522-3274Call and talk to our crew about what happened. The call is free, and so is the inspection.
Our process
What happens after you call
- 1
You call, we send a crew
Call (303) 522-3274 any time, day or night, including weekends and holidays. Tell us what you’re seeing or smelling, and where. We’ll send a crew right away.
- 2
We inspect and find the source
The 24 Hour Flood Pros team looks for the moisture feeding the mold. We use moisture meters to find water hiding inside walls, under floors, and in the crawlspace. We take photos for your insurance. The inspection is free.
- 3
We close off the area
We seal the work area with plastic and set up HEPA air scrubbers, so spores don’t spread to clean rooms. The heat and air stay off in that area while we work.
- 4
We stop the moisture
We dry out the water and show you what’s causing it. If a plumber, a roofer, or an HVAC tech needs to fix a leak, we tell you before we go further.
- 5
We remove moldy materials
Drywall, insulation, and carpet pad with mold growing in them are cut out, bagged, and carried out. That way we only remove what really needs it.
- 6
We clean and dry what stays
Framing, subfloor, and other solid surfaces are HEPA-vacuumed, cleaned, and treated. Then we dry them until they read close to a dry room elsewhere in the house.
- 7
We make the repairs
When you’re ready, the 24 Hour Flood Pros team fixes the damage. We replace drywall, install cabinets, and finish with fresh paint. Our goal is to make your home look the way it did before.
- 8
Final check with you
Before we take the plastic down, we check the area for any mold or dust left behind. Then we walk through it with you and send the final records to your insurance company to close out the claim.
Stain on the ceiling after hail season?
Call (303) 522-3274A slow Denver roof leak can feed attic mold long after the storm. Call us for a free inspection.
Insurance and claims
Mold remediation and your insurance claim
Sometimes. Many homeowners policies cover mold when it comes from a sudden, covered water event, like a burst pipe or a water heater that gives out. Mold from a slow leak or ongoing humidity is often excluded, and some policies cap mold coverage at a set amount.
Your policy decides what’s covered, not us. We work with all major insurance carriers, including State Farm, Allstate, Liberty Mutual, Farmers, American Family, Travelers, and Nationwide, and we keep the paperwork clear enough that your claim doesn’t stall.
Report it soon after you find it. Waiting can make it harder to show the mold came from a sudden event.
If a claim stalls, you can file a complaint with the Colorado Division of Insurance.
What your adjuster will ask for
- When you first noticed the mold or the smell
- What caused the moisture, and when it started
- Photos of the mold and any water damage
- Receipts for any work already done on the leak
What we send them
- Date-stamped photos of each affected area
- Moisture readings showing where the water is
- A line-by-line estimate for removal and rebuild
- One point of contact for your adjuster
Where we work
Areas we serve around Denver
We serve Denver and communities across the Front Range.
Counties
- Denver County
- Jefferson County
- Arapahoe County
- Adams County
- Douglas County
- Boulder County
Nearby cities
- Aurora
- Lakewood
- Littleton
- Arvada
- Westminster
- Thornton
- Englewood
- Centennial
- Parker
- Highlands Ranch
- Broomfield
- Golden
Don't see your area listed? Call us and we'll tell you right away.
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Common questions
Denver mold remediation FAQs
How fast can 24 Hour Flood Pros get to me?
A crew can be there within 45 minutes. We work 24/7, including nights, weekends, and holidays, so you can call the moment you find mold or a leak.
Is black mold dangerous?
Any mold growing indoors should be removed, whatever its color. The CDC’s advice is that you don’t need to know the type of mold to deal with it. Mold can trigger allergies and asthma, so people with breathing problems or weak immune systems should stay away from it.
Can I clean mold myself?
For a small area, yes. The EPA says a patch under about 10 square feet, roughly 3 feet by 3 feet, can usually be cleaned with detergent and water while you wear gloves, eye protection, and a mask. Call a professional for anything larger, mold in the heating and air system, mold after sewage or flood water, or mold that keeps coming back.
Do I need a mold test before remediation?
Usually not if you can see the mold. Testing is most useful when you smell mold but can’t find it, or to confirm the cleanup worked.
Will the mold come back after remediation?
Not if the moisture is fixed. Mold comes back when the leak, the drainage problem, or the humidity is still there. That’s why every job starts with finding the source, and why we dry everything before the walls are closed.
Do I need to leave my home during mold remediation?
Usually not. We seal off the work area and filter the air, so most people stay home. For large jobs, or if someone in the house has breathing problems, we’ll tell you in advance if staying somewhere else makes sense.
How much does mold remediation cost in Denver?
It depends on how big the area is, what has to be removed, how hard it is to reach, and what it takes to stop the moisture. A bathroom wall costs far less than a whole crawlspace or attic. The inspection and estimate are free, so you know the cost before any work starts.
How long does mold remediation take?
A small area can take a few days. Crawlspaces, attics, and rooms that need rebuilding take longer. Your estimate includes a schedule.
Does Colorado require a license for mold remediation?
Colorado doesn’t issue a specific state license for mold remediation, so it’s worth checking a company’s training and certifications before you hire it. 24 Hour Flood Pros is an IICRC Certified Firm, #70120685.
Available 24/7
Get a free inspection
Day or night, weekend or holiday, call (303) 522-3274. A crew can be there within 45 minutes to start your free inspection.
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