Did you find a mold in your house in Ashburn? When homeowners see that fuzzy growth, they freak out, and honestly, the first thing everyone wants to know is how much this is going to cost them. This is the thing, Angi‘s 2025 data shows that Ashburn households usually pay between $1,222 and $3,751 to get rid of mold. The average mold removal and remediation costs are about $2,366.
The first thing you need to do to address the problem is to find a reputable restoration company in your area. The amount of space it covers, where it grows, and what type it is will all affect your final bill. Let’s break down everything you need to know about mold remediation and removal costs in Northern Virginia.
What Affects Your Mold Removal and Remediation Costs?
There are several factors that affect how much mold removal services will cost you. The size is the most important thing, but the location and type of mold are also crucial.
Square Footage and Coverage Area
It usually costs between $10 and $25 per square foot to have mold removed by a professional. A 100-square-foot problem costs roughly $1,000 to $2,500. Hidden mold behind walls or under floors adds to this total because contractors need more time and materials to reach it.
Mold Location in Your Asburn Home
Where mold grows changes your cost for mold remediation and removal. Hard-to-reach spots require more work:
- Attic: $1,000 to $4,000
- Basement: $500 to $3,000
- Crawl Space: $500 to $2,000
- Bathroom: $500 to $1,000
- HVAC Systems: $3,000 to $10,000
- Walls: $1,000 to $20,000
- Whole House: $10,000 to $30,000
Mold Removal and Remediation Costs: Based on Type of Mold
Black mold (Stachybotrys chartarum) costs more to remove because technicians need extra protective equipment. Other dangerous types, like Chaetomium and Fusarium, may also increase prices. Testing identifies which mold you have, costing $250 to $350 for basic tests and $450 to $800 for comprehensive analysis.
Average Cost of Mold Remediation By Room
Let’s talk about different rooms in your home. Each room has its own set of problems.
Basement Mold Problems
We all know basements stay damp, making them prime spots for mold infestation. Removal runs $500 to $3,000, but costs jump if growth hides behind finished walls or wood paneling. Foundation issues often cause the problem, so sealing costs ($2,250 to $7,100) prevent future growth.
Attic Mold Removal Cost
Roof leaks create perfect conditions for spores to thrive. Attic mold removal costs range from $1,000 to $4,000. Severe cases reach $7,000. Plus, you’ll also need roof repairs ($350 to $1,250) to stop water from entering again.
Bathroom and Kitchen Mold
Obviously, steam and moisture make bathrooms natural habitats for growth. Jobs typically cost $500 to $1,000, but problems behind sinks, tubs, or tiles can push costs to $8,000.
Here’s a pro tip: running exhaust fans during showers helps prevent this issue.
HVAC System Mold
Here’s the scary part. Air systems spread spores throughout your home. Cleaning an HVAC system costs $3,000 to $10,000, depending on your setup:
- Radiant heat systems: $1,500 to $5,000
- Furnaces and air handlers: $3,000 to $5,000
- Air conditioners: $6,000 to $10,000
- Air ducts alone: $600 to $2,000
DIY vs Professional Mold Removal in Ashburn VA
The EPA says you should only tackle mold yourself if it covers less than 10 square feet. Anything larger needs professional mold removal. And honestly, even small spots deserve inspection because visible growth often signals bigger problems hidden from view.
When to Call Professionals
Call Royal Restoration or another licensed service when you see:
- Mold covering more than 10 square feet
- Black or dark green fuzzy growth
- Mold in your HVAC system
- Water damage in walls or floors
- Mold returning after cleaning
- Health symptoms like breathing problems or skin irritation
Professional teams bring proper equipment, protective gear, and disinfection services that kill 100% of mold spores. They also find hidden mold you miss and fix the moisture source causing growth.
DIY Mold Removal Limits
Small DIY jobs cost $50 to $300. You’ll need:
- Wet vacuum: $30 daily rental or $80 to $200 to buy
- Mold cleaning solution: $10 to $75
- Safety gear (N95 mask, goggles, gloves): $30 to $150
Only attempt this for a tiny surface mold where you know the source. Skip DIY if you have respiratory issues, the mold looks black, or you’re unsure about the extent.
Potential Extra Costs in Mold Remediation and Removal
Here’s what nobody tells you. Getting rid of mold often reveals damage underneath. Budget for these potential extras:
- Drywall replacement: $300 to $825 (full installation: $1,000 to $2,900)
- Wooden wall treatment: $700 to $5,000
- Concrete surface cleaning: $1,000 to $10,000+
- Carpet replacement: $775 to $2,600
- Flooring repairs: $200 to $550
Repairs to the structure add up quickly. If a wall has extensive mold, it may need to be rebuilt entirely, not just cleaned on the surface.
Mold Inspection Costs in Ashburn
So before removal starts, you need testing. Inspections run $300 to $1,025 in Northern Virginia. Inspectors check suspect areas, take samples, and identify types. This step prevents wasted money on unnecessary work and ensures you get rid of mold completely.
By the way, testing happens in two stages. Visual inspection comes first, where professionals look for visible growth and moisture problems. Lab testing follows, analyzing samples to determine species and concentration levels.
How to Prevent Mold and Save Money
It’s cheaper to stop mold before it starts than to get rid of it. Keep an eye on the moisture levels in your Ashburn house.
Control Indoor Humidity
Keep humidity below 50%. Mold thrives above this level. Install dehumidifiers in basements and crawl spaces. Run bathroom fans during showers and for 30 minutes after. Open kitchen windows when boiling water.
Fix Water Problems Immediately
Repair leaks the day you find them. Check these common problem spots:
- Roof flashing around chimneys
- Basement foundation cracks
- Under-sink pipes
- Around windows and doors
- Washing machine hoses
- Water heater connections
Regular Maintenance
Have your air ducts cleaned every few years. This costs between $275 and $500. Check your roof annually. Twice a year, clean your gutters so that water may flow away from your foundation. These small investments keep you from having to pay a lot of money to get rid of mold later.
Getting Started with Mold Removal
Do something right away if you see mold. Taking action quickly stops the spread and reduces the average cost of getting rid of mold. You must protect your Ashburn house against mold damage. Expert help guarantees total removal and stops the problem from coming back.
Royal Restoration serves Ashburn and the greater DMV area with licensed mold remediation teams. We handle everything from small bathroom mold to whole-house infestations. Our technicians arrive quickly, assess the damage, and create a clear plan with transparent pricing.
We specialize in mold remediation and removal costs that fit your budget while protecting your home and health. Our services include testing, removal, repairs, and prevention strategies. We also work with insurance companies to streamline claims. Call Royal Restoration for a FREE inspection. We’ll figure out what’s wrong, go over your options, and give you an accurate estimate.


