If you’re buying or selling a home in Colorado Springs and radon just came up on the inspection report, you probably have one immediate question: what is this going to cost me?

It’s a fair question, and the answer is a little more nuanced than a single number. Radon mitigation costs vary depending on your home’s foundation type, size, and layout, but most homeowners in the Colorado Springs area land somewhere between $800 and $2,500 for a professional system installation. For the majority of straightforward installations, that number is closer to $1,000 to $1,500.

That’s not a huge price to pay when you consider what’s at stake. Radon is the second leading cause of lung cancer in the United States, and Colorado is one of the higher-risk states in the country. Roughly half of Colorado homes test above the EPA’s action level of 4 picocuries per liter (pCi/L). In Colorado Springs specifically, elevated radon readings are common enough that buyers and sellers deal with this on a regular basis.

If you’re in the middle of a real estate transaction and trying to figure out what’s reasonable to spend, negotiate, or expect, this breakdown should help.

What’s Actually Included in the Cost?

Most quotes from a professional radon mitigation contractor are flat-fee and all-in. That means labor, materials, the fan, and the pipe are included. Here’s what you’re typically paying for:

• Sub-slab depressurization system: This is the most common mitigation method. A contractor drills through the foundation slab, inserts a PVC pipe, and connects it to an exhaust fan that pulls radon from beneath the home and vents it safely above the roofline. It works, it’s durable, and it’s what most homes in Colorado Springs need.
• Fan: The fan is the heart of the system. Quality matters here. Higher-grade fans last longer and are quieter, and a good contractor will size the fan appropriately for your home rather than just installing the cheapest option available.
• PVC pipe and routing: How the pipe gets from your basement to the outside affects both the appearance of the installation and the labor involved. Interior routing through the home is cleaner but takes more time; exterior pipe runs are quicker.
• Post-installation testing: A reputable contractor should include or offer post-mitigation testing to confirm the system is working and radon levels have dropped below the EPA action level.

Permits are sometimes included in the quote and sometimes listed separately. In Colorado Springs, expect permit fees in the range of $50 to $150 if they apply to your project. Always ask your contractor upfront.

What Drives the Price Up or Down?

A few specific factors have the biggest impact on where your quote lands.

Foundation Type

This is usually the biggest variable. Homes with a simple poured concrete basement slab are the most straightforward to mitigate. One suction point, one pipe, one fan. Those jobs tend to come in at the lower end of the range.

Homes with a crawl space add complexity. If the crawl space has a dirt floor, it typically needs to be encapsulated with a vapor barrier before mitigation can happen, which adds meaningful cost. Depending on the size of the crawl space, encapsulation alone can run anywhere from a few hundred dollars to well over a thousand. Homes with both a basement and a crawl space may need a more extensive system to address both areas.

Older homes with block foundation walls, homes with multiple foundation sections, or properties with a sump pit that needs sealing can also increase the scope of the work.

Home Size and Layout

Larger homes may require more than one suction point to adequately depressurize the soil beneath the entire footprint. Each additional suction point means more pipe, more drilling, and more labor. A single-story ranch with a full basement is usually simpler than a multi-level home with additions or a partially finished basement with complex framing.

Number of Pipe Penetrations and Routing Complexity

Getting a pipe from the basement to above the roofline sounds simple, but the actual route through the home varies. Running pipe through a finished basement, through closets, through attic space, or up an exterior wall all have different labor requirements. Interior routing through living space is generally cleaner aesthetically but takes more time. Exterior pipe runs are faster but more visible from the outside.

Contractor Experience and Reputation

Pricing does vary between contractors, and it’s not always apples-to-apples. A lower quote from an uncertified contractor who cuts corners on materials or skips post-installation testing isn’t actually a better deal. Look for a contractor who is certified through the National Radon Proficiency Program (NRPP) or the National Radon Safety Board (NRSB), and who offers a guarantee that radon levels will drop below the EPA action level after installation.

Colorado Springs Pricing: What to Expect Locally

National pricing data is useful as a reference, but Colorado has its own context. The state is known for higher-than-average radon levels, which means the local contractor market is experienced and active. That’s generally good for consumers, because you have access to specialists who understand the region’s soil conditions and common foundation types.

For a standard single-family home in Colorado Springs with a basement slab, most straightforward installations fall in the $1,000 to $1,500 range. Homes with crawl spaces or more complex layouts typically run $1,500 to $2,500 or more. Very complex systems involving multiple suction points, crawl space encapsulation, or unusual foundation configurations can push higher.

If you receive a quote significantly below this range, it’s worth asking what’s included and whether post-installation testing is part of the package. If you receive a quote significantly above this range for a simple installation, getting a second opinion is reasonable.

Radon Mitigation in Real Estate Transactions

This is where things get practical for buyers and sellers. Radon testing is a standard part of the home inspection process in Colorado, and elevated levels frequently come up. Here’s what typically happens and how cost factors in.

For Buyers

If your inspection reveals radon levels above 4 pCi/L, you have a few options. You can request that the seller install a mitigation system before closing, negotiate a credit to cover the cost, or handle it yourself after purchase. Each approach has tradeoffs.

Asking the seller to install the system means it gets done before you move in, which is convenient. However, you have no control over which contractor they use or the quality of the installation. If you take a credit instead, you choose your own contractor and can ensure the work is done right, but you’ll need to manage it after closing.

In most cases, a mitigation credit in the $1,000 to $1,500 range is reasonable for a standard installation. If the home has a crawl space or other complicating factors, you may want to have a contractor assess the property before agreeing to a credit amount.

For Sellers

If radon comes up on a buyer’s inspection, having a system already installed puts you in a stronger position. Buyers are often more comfortable with a home that already has a professionally installed, functioning mitigation system than one where the issue still needs to be resolved. If you’re planning to list your home, getting a radon test done in advance gives you time to install a system if needed, rather than negotiating it under the pressure of a transaction timeline.

Installing a system before listing typically costs the same as installing it during a transaction, but it removes a common negotiation point and can make your home a smoother sale.

Ongoing Costs After Installation

The one-time installation cost is the biggest expense, but a mitigation system does have some ongoing costs worth knowing about.

The fan runs continuously, 24 hours a day, but it draws very little power. Most fans use roughly the same electricity as a 60-watt light bulb, which translates to around $50 to $80 per year added to your utility bill. That’s a minor ongoing expense relative to the benefit.

Fans typically last between 7 and 10 years, though many run longer with proper installation. When replacement is eventually needed, plan on $180 to $300 for a new fan including installation.

It’s also worth testing radon levels every couple of years to confirm the system is continuing to perform. Short-term test kits are inexpensive, and professional retests run around $125 to $200 if you want a certified result. Some homeowners do this before selling to have documentation that the system is working.

Is Radon Mitigation Worth It?

The EPA conducted a cost-benefit analysis in 2025 that found radon mitigation provides a return on investment of up to $15 for every dollar spent, when accounting for the long-term reduction in lung cancer risk. That’s a striking number, and it reflects the fact that the health consequences of prolonged radon exposure are serious and well-documented.

From a purely financial standpoint, a mitigation system is also one of the few home improvements that can directly support a real estate transaction. It removes a common inspection hurdle, protects the home’s value, and gives future buyers and sellers a cleaner picture of the property.

For most Colorado Springs homeowners, the cost of a properly installed system is comparable to other standard home maintenance expenses. It’s not a luxury upgrade. It’s a fix for a known health hazard, and it’s one that works reliably when done right.

What to Look for in a Radon Mitigation Contractor

Not all contractors are equal, and because radon is a health issue rather than a cosmetic one, quality of installation matters. A few things to look for:

• Certification: Look for NRPP or NRSB certification. These credentials indicate the contractor has met national standards for radon mitigation work.
• A guarantee: Reputable contractors guarantee that post-installation radon levels will fall below the EPA’s action level of 4 pCi/L. If they won’t back their work, that’s a red flag.
• Post-installation testing: The system should be tested after installation to confirm it’s working. This documentation is also valuable if you sell the home later.
• A clear quote: Ask what’s included. Labor, materials, the fan, the pipe, and permits (if applicable) should all be accounted for. A reputable contractor will walk you through exactly what they’re doing and why.

Get a Quote from Advanced Radon Systems

Advanced Radon Systems has been serving homeowners and real estate clients in the Colorado Springs area for years. Whether you’re dealing with a radon issue during a home purchase, preparing to list a property, or simply want to know where your home stands, we’re here to help.

We provide professional radon testing, certified mitigation system installation, and post-installation verification. Every installation comes with a guarantee that radon levels will fall below the EPA action level, and we’ll walk you through the process from start to finish.

Contact us to schedule a consultation or get a quote. We’re happy to answer questions and help you figure out the right next step for your home.