Mold Removal Denver: $1,223 to $3,757 + Frozen Pipe Leaks
Mold removal in Denver runs $1,223 to $3,757 for most jobs, HomeAdvisor's 2026 national range, with an average of $2,368.
EPA says a homeowner can generally clean up less than about 10 square feet; call your insurer before anything is torn out.
Key numbers
- Average $2,368Mold remediation, nationalHomeAdvisor, Jun 2026
- $10 to $25Per square foot, nationalHomeAdvisor, Jun 2026
- $500 to $3,000Basement, nationalHomeAdvisor, Jun 2026
Mold after a burst pipe or a hail leak in a Denver house? Call the water damage line and say how large the patch is.
| Job or rate | Published cost | Source |
|---|---|---|
| Mold remediation, national | Average $2,368; most $1,223 to $3,757 | HomeAdvisor, Jun 2026 |
| Per square foot, national | $10 to $25 | HomeAdvisor, Jun 2026 |
| Basement, national | $500 to $3,000 | HomeAdvisor, Jun 2026 |
| Attic, national | $1,000 to $4,000 | HomeAdvisor, Jun 2026 |
| Crawl space, national | $500 to $2,000 | HomeAdvisor, Jun 2026 |
| Mold remediation, national | Average $3,500; most $1,500 to $9,000 | Fixr, Aug 2025 |
| Mold testing, national | $250 to $350 basic; $450 to $800 with lab analysis | HomeAdvisor, Jun 2026 |
National figures; no publisher lists a Denver-only mold removal price.
Do this now: mold or a fresh leak in a Denver home
- Stop the water. Close the main shutoff for a plumbing leak; for a break on the utility side, call Denver Water's emergency line, 303-628-6801.
- Photograph everything before cleanup and call your insurer. Do not sign any contract that hands your claim or its payments to a contractor.
- Dry wet materials within 24 to 48 hours. EPA says in most cases mold will not grow if they are dried in that window.
- Do not run the HVAC if you suspect mold in it, EPA says.
- Under about 10 square feet, EPA says a homeowner can generally clean it up. Never mix bleach with ammonia or other cleaners, the CDC says.
Mold removal in Denver is finding and fixing the moisture source, then containing, removing and cleaning mold-damaged materials. HomeAdvisor's 2026 national range is $1,223 to $3,757.
Is it an emergency? When Denver mold needs a pro now
Mold larger than about 10 square feet, mold after a lot of water damage, or mold in the ductwork calls for a professional, EPA's cleanup guidance says. A fresh leak is the urgent part: EPA says to dry water-damaged areas within 24 to 48 hours to prevent growth. The CDC says mold can cause a stuffy nose, coughing, wheezing or skin rash, and that people with asthma or mold allergies may react severely. A small spot on a bathroom ceiling is a weekend job, not an emergency. For the leak itself, see emergency plumber in Denver.
Where Denver mold comes from: frozen pipes, hail and old basements
Most Denver mold starts with a leak, not humidity. Denver International Airport averages 156.3 nights a year at or below 32 F and 6.2 nights at or below 0 F, NOAA's 1991 to 2020 normals show, and a pipe that splits in a wall can soak drywall for days before anyone sees it. Hail is the other source: the May 8, 2017 Denver hailstorm caused about $2.3 billion in damage, Colorado's costliest insured catastrophe, with about 100,600 homeowner claims, FOX Weather reported. A roof leak can feed attic mold, where HomeAdvisor puts removal at $1,000 to $4,000.
Age matters too. Denver's median home was built in 1975, and 55.5% of its housing units were built before 1980, the Census Bureau's 2020 to 2024 counts show. EPA says to suspect hidden mold if a building smells moldy but you cannot see the source, including inside walls around pipes and in ductwork. Mold testing runs $250 to $800 nationally, HomeAdvisor says (see mold inspection), but EPA says sampling is usually unnecessary when mold is visible.
Renting in Denver: Colorado's mold rules
Colorado law treats a rental as uninhabitable when there is mold associated with dampness, not counting minor mold on surfaces that collect moisture (C.R.S. 38-12-505). Once notified, the landlord must act within 96 hours to reduce the immediate risk, including setting up containment, installing a HEPA filtration device and stopping active water sources, and the tenant may be offered a comparable unit or hotel room at no extra cost, the Environmental Law Institute's summary of C.R.S. 38-12-503 and 38-12-507 says. Tenants should give written notice and keep photos.
Insurance and the leak credit
Call your insurer as well as a restoration company, and photograph the damage before anything is removed. Never sign an assignment of benefits or any contract that hands your claim to a contractor. Once the leak is repaired, Denver Water may adjust your bill: it compares use during the leak with your three-year average, covers up to three bills, and takes applications within 12 months of the repair (303-893-2444). The water damage restoration in Denver page covers drying costs.
| What | Denver | Source |
|---|---|---|
| Water emergency | Denver Water 303-628-6801. | Denver Water |
| Leak credit | Up to three bills; apply within 12 months of the repair. | Denver Water |
| Cold | 156.3 nights at or below 32 F; 6.2 at or below 0 F. | NOAA normals |
| Hail | May 8, 2017: about $2.3 billion; about 100,600 homeowner claims. | FOX Weather |
| Housing age | Median year built 1975; 55.5% built before 1980. | U.S. Census Bureau, ACS 2020 to 2024 |
Local rules, programs and climate for Denver, from official city, state, utility, Census and NOAA pages. Aurora, Lakewood and other metro cities set their own rules.
Questions to ask a Denver mold company
- What caused the mold, and will you fix or refer the moisture source?
- How will you contain the area, and will you follow EPA's remediation guidance?
- Do you test? EPA says sampling is usually unnecessary when mold is visible.
- Is the written price by square foot or for the whole job?
- Can I see proof of insurance, and references from jobs with mold?
Musty smell but no visible mold? Call the water damage line and ask whether a moisture check makes sense first.
More Denver water damage guides
Leaks and backups: plumber in Denver and sewer line repair in Denver. Hail and roof leaks: roof repair in Denver. Other cities: mold removal in Seattle and mold removal in Minneapolis. National prices by room: mold remediation cost. Calls go to an independent company that serves your area and takes this kind of job (how calls work).
More help in Denver
- Plumbers in Denver
- Emergency plumber in Denver
- Water heater repair in Denver
- Drain cleaning in Denver
- Sewer line repair in Denver
- HVAC repair in Denver
- AC repair in Denver
- AC installation in Denver
- Furnace repair in Denver
- Water damage restoration in Denver
- Roof repair in Denver
- Emergency roof repair in Denver
- Roof replacement in Denver
- Electrical repair in Denver
- Tree removal in Denver
- Bathroom remodel in Denver
- Pest control in Denver
- Home repair in Denver
Mold removal in other cities
Questions people ask
How much does mold removal cost in Denver?
No Denver-only price is published. HomeAdvisor's 2026 national range is $1,223 to $3,757 (average $2,368), and Fixr puts most jobs at $1,500 to $9,000.
Can I remove mold myself?
EPA says a homeowner can generally clean up an area under about 10 square feet. Larger areas, or mold after a lot of water damage, call for a professional.
What are a Denver landlord's duties for mold?
Colorado treats a rental as uninhabitable when there is mold associated with dampness, and the landlord must act within 96 hours of notice to reduce the immediate risk.
How fast does mold grow after a leak?
EPA says to dry water-damaged areas within 24 to 48 hours; in most cases mold will not grow if materials are dried in that window.
Does insurance pay for mold removal?
It depends on the cause and your policy. Call your insurer, photograph the damage first, and never sign a contract that hands your claim to a contractor.
Mold after a leak in Denver? Call the water damage line, and call your insurer too before anything is removed.
- 1Call the line
- 2It rings a local company
- 3They give you the price
Before you book
- License numberAsk for it, then check it with the state board.
- Written priceGet the visit fee and the job price in writing before work starts.
- Proof of insuranceAsk for the certificate, especially for roof, tree and electrical work.
Sources (13)
- HomeAdvisor: Mold remediation cost (2026-06-19)
- Fixr: Mold remediation cost (2025-08-29)
- EPA: Mold cleanup in your home (2026-06-04)
- EPA: A brief guide to mold, moisture and your home (2026-02-18)
- CDC: About mold and your health (2024-09-26)
- NOAA NCEI: U.S. Climate Normals 1991 to 2020, Denver International Airport (checked 2026-10-11)
- FOX Weather: Colorado's costliest hailstorm caused $2.3 billion in damage (2023-05-08)
- U.S. Census Bureau: ACS 2020 to 2024, Table B25035 Median year structure built, Denver city (checked 2026-10-11)
- U.S. Census Bureau: ACS 2020 to 2024, Table B25034 Year structure built, Denver city (checked 2026-10-11)
- Colorado Revised Statutes 38-12-505: Uninhabitable residential premises (checked 2026-10-11)
- Environmental Law Institute: Indoor air quality in rental dwellings, Colorado (checked 2026-10-11)
- Denver Water: Lead (checked 2026-10-11)
- Denver Water: Leak adjustment request form (checked 2026-10-11)
Call the water damage line in Denver
Have the address, where the water came from if you know, how long it has been wet and which rooms are affected. Take photos first. The company will quote its inspection fee before anything is booked.
Free call to an independent company in your area that takes this kind of work.