We could smell something musty in the hallway closet but never found anything. Turned out to be a slow leak behind the wall from an old pipe. They found it in under an hour and the smell was gone once the work was done.
Longmont, Colorado
Mold Odor Removal in Longmont, CO
Our IICRC-certified crew handles mold odor removal for Longmont homes and businesses. Same-day response, we bill your insurance, and free estimates.
IICRC certifiedSame-day responseWe bill insuranceFree estimates
Reviews
Rated 4.9 by Longmont-area neighbors
Same-day response when our basement flooded. They dried it out and removed the damaged drywall before mold could spread.
Second time using them for a different property. Same great mold removal service both times.
Our process
Our mold odor removal process in Longmont, CO
Walk the space
We follow the smell room by room, noting where it's strongest and where it fades.
Check moisture
A moisture meter checks walls, baseboards, and flooring near the strongest odor points.
Locate the source
If needed, we open a small access point to confirm mold growth behind a wall, under flooring, or in a cavity.
Remove and treat
Affected material is removed and the area is treated, not just deodorized on the surface.
Re-check air
We verify the odor is gone at the source before considering the job finished.
Certified & trusted
Standards we work to, carriers we bill
Where we work in Longmont
Longmont neighborhoods we cover
From older homes near downtown Longmont to newer builds nearby, we handle basement, bathroom, and attic mold across Boulder County.
NiwotMeadGunbarrelErieFirestoneBerthoudLyonsFrederick
What it costs
Mold Odor Removal cost in Longmont, CO
Every job is different, so here are the typical Colorado ranges we see. These are planning numbers, not a quote.
Small area
$500 to $1,500
A single moldy spot, a closet, or under a sink. We contain it, remove it, and treat the surface.
One room
$1,500 to $3,500
A bathroom, kitchen, or bedroom with mold on a wall or ceiling, plus the moisture source fixed.
Basement, attic, or crawl space
$2,000 to $6,000
Larger areas that need more containment and drying. Common here after snowmelt or a slow leak.
Whole-house or severe
$10,000 and up
Mold across several rooms or after major water damage. We work in phases, room by room.
We give free estimates, so the surest way to know your number is to call. Want a ballpark first? Try our instant mold remediation cost calculator. Filing a claim? We bill your carrier directly, so see our mold insurance claims guide.
Local knowledge
Mold Odor Removal for Longmont, CO homes
Mold Odor Removal in Longmont tends to start the same way mold does across Boulder County: expansive clay soil and freeze-thaw cycles that crack foundations and let groundwater in. When that moisture sits for even a day or two, mold takes hold, and that is when homeowners from Niwot, Mead, Gunbarrel and the rest of Longmont call us.
We handle mold odor removal for Longmont the right way. We find and fix the moisture source first, because mold always returns if the water problem is left behind, then we contain the area and remove the mold safely.
Our team is based in Dacono, about 20 minutes from our Dacono base, so we can usually reach a Longmont home the same day. Our methods follow public guidance from the EPA and the CDC on handling indoor mold safely.
Longmont specifics
What Mold Odor Removal in Longmont really involves
Most Mold Odor Removal jobs in the area trace back to spring snowmelt pooling against basements and crawl spaces, a pattern we see week after week. What sets Mold Odor Removal apart is where it hides: basements, crawl spaces, and closed-up rooms, exactly where homeowners rarely look. The reason Mold Odor Removal comes up so often here is simple: dry-air habits like swamp coolers and humidifiers, working on local homes month after month. Our crew has done Mold Odor Removal across Boulder County enough to know how expansive clay soil and freeze-thaw cycles moves through these homes.
Mold Odor Removal is one of the more common calls we get from homeowners around Longmont. We handle Mold Odor Removal for homes from Erie to Firestone and the surrounding area the same careful way. When people here search for Mold Odor Removal, the growth they can see is usually the last symptom, not the cause. Around here, mold odor removal tends to settle into basements, crawl spaces, and closed-up rooms before anyone in the house notices it.
Here is how Mold Odor Removal usually goes:
- Contain the space under negative air with HEPA filtration
- Remove moldy material to the IICRC S520 standard
- Inspect the affected area and find the moisture feeding the mold
- Recheck the space and document the work for your records
- HEPA vacuum, clean, and treat the surrounding surfaces
Since we are only about 20 minutes from our Dacono base, a call for Mold Odor Removal rarely waits long.
Good to know
Mold Odor Removal in Longmont, CO: common questions
Can there be mold if I can't see any?
Yes. Mold often grows inside wall cavities, under flooring, or in ductwork long before it becomes visible on a surface. A persistent musty smell is one of the most common signs of hidden growth.
How do you find odor without visible mold?
We walk the space to locate where the smell is strongest, then use a moisture meter to check nearby walls, floors, and baseboards. If needed, we open a small access point to confirm what's happening inside a cavity.
Is a musty smell in my basement normal for Colorado homes?
A faint concrete smell can be normal, but a strong, persistent musty odor usually isn't. It's worth having checked, especially in basements near foundations that see spring runoff.
Do I need to leave my Longmont home during the work?
Usually no. We seal the work area under negative air, so most of the Longmont home stays livable. For larger jobs we will tell you if it is better to step out for a day.
Will air fresheners or ozone machines fix the smell?
They can mask odor temporarily but don't address the source. If mold or trapped moisture is causing the smell, it will typically return once the treatment wears off.
What if you can't find a source?
It happens occasionally, especially with faint or intermittent smells. We'll tell you honestly if we don't find active moisture or mold rather than recommending unnecessary removal.
Will my insurance cover mold odor removal in Longmont?
It depends on the cause. When the mold follows a sudden, covered event, there is often coverage. We bill your carrier directly and document the loss so your Longmont claim moves.
Do you serve Longmont?
Yes. We cover all of Longmont, including Niwot, Mead, Gunbarrel, and the rest of the Longmont area. We are based in Dacono, about 20 minutes from our Dacono base, and answer our own phone around the clock.
More help in Longmont
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Talk to a certified team now
Need mold odor removal in Longmont, CO?
Call our 24/7 line and talk to the certified crew directly. Same-day response, we bill your insurance, and free estimates.