Radon Mitigation in Aurora
Three counties, one city — from post-war ranches near the old Fitzsimons gate to rough-ins past E-470, Aurora's radon work spans more ground than anywhere else we go.
Radon Mitigation for Aurora Homes
Aurora stretches across three counties — Arapahoe, Adams, and a corner of Douglas — and its housing runs just as wide: post-war ranches around Hoffman Heights, seventies split-levels and tri-levels through Seven Hills and Mission Viejo, and new builds past E-470 with passive rough-ins waiting for a fan. Martens Radon covers all of it, licensed with the State of Colorado (RMT.0000225), with a free on-site assessment and a written quote that usually arrives the same day. Most homes we mitigate end up below 2.0 pCi/L, well under the EPA action level of 4.0.
Do Aurora's Older Ranches Need a Different System Than the New Builds?
Same physics, different starting point — a fifties ranch gets a retrofit designed around its basement, while many newer southeast builds only need their passive rough-in activated. Hoffman Heights ranches and Seven Hills split-levels get the retrofit treatment, while a Southlands-area capped rough-in usually only needs activation — the free assessment decides which one your house needs.
Aurora is one stop on a much wider map — the rest of our service area covers everywhere else Martens Radon works across the metro and foothills. If you want more before you call, what happens inside a mitigation system walks through the hardware end to end, and the metro cost guide breaks down pricing across every foundation type, not just the three counties Aurora spans.
Which Aurora Neighborhoods Do We Serve?
Aurora's neighborhoods span three counties and every build era at once, from Hoffman Heights ranches to new construction past E-470, and the right system depends on which one you're in.
Hoffman Heights
Fifties ranches on compact blocks, most with full basements.
Northwest Aurora
The city's oldest blocks, where close-set originals ask for discreet exterior runs.
Aurora Hills
Sixties ranches and splits rolling around the golf course.
Seven Hills
Bi-levels and tri-levels where slab heights decide suction placement.
Mission Viejo
Seventies two-stories and splits built in waves off Hampden.
Meadow Hills
Established homes near the state park, many with garden levels.
Saddle Rock
Nineties-and-newer two-stories around the golf course, nearly all with basements.
Southlands area
Two-thousands construction where activation is often the whole job.
Tallyn's Reach
Newer two-stories among the pines at the city's southeast edge.
What Radon Mitigation Costs in Aurora
A post-war ranch with a full basement is the standard retrofit case: $1,400–$1,800. A house that pairs its basement with a dirt utility crawl moves into the crawlspace band at $1,900–$2,800+ once a sealed membrane is involved. And across the newer southeast, a capped rough-in usually needs only activation: $550–$850.
Passive System Activation
Homes built with a capped rough-in pipe
$550–$850
Standard Retrofit System
Most slab or basement homes
$1,400–$1,800
Crawlspace System
Sealed membrane + sub-membrane suction
$1,900–$2,800+
What Every Martens Radon Install Includes
Every quote covers the complete job: all materials, the new fan, and debris disposal. Every system ships with a U-tube manometer and a vacuum alarm, as Colorado regulations require, so you can see at a glance that it is pulling. Exterior runs are finished with color-matched downspout transitions — including custom 3D-printed parts where a standard fitting will not fit the house. Ivan stands behind his own workmanship for as long as Martens Radon is in business, and the fan carries its own manufacturer warranty. A follow-up radon test is available if needed or wanted.
Aurora Radon Questions
Does it matter which of Aurora's three counties our home sits in?
No — for the system itself, nothing changes. The soil under your specific house decides how a system gets designed, not which side of the Arapahoe, Adams, or Douglas County line that house happens to sit on. Martens Radon serves every part of Aurora on all three county sides, on the same terms: licensed, free on-site assessment, written quote.
Our Hoffman Heights ranch went up in the fifties — was radon even a consideration then?
No — radon awareness didn't arrive until decades after Hoffman Heights was built, so it was never part of the original construction. That doesn't cause problems now: fifties ranches retrofit well, since a full basement gives a suction system a straightforward path. The free on-site assessment is what determines the exact placement for your specific house.
We back up to open land near Cherry Creek State Park — is our risk different?
No — what's next door doesn't set your radon risk, including open space like Cherry Creek State Park. Risk comes from the soil and rock directly beneath your foundation, not from what surrounds the property above ground. Testing your specific house is the only way to get a real answer, regardless of what's on the other side of the fence.
Our Southlands-area build came with a capped pipe in the utility room — what is it?
That's a passive rough-in — a capped pipe left ready during construction, waiting on a fan. Turning it into a working system means adding the fan, the wiring, and a manometer so you can see it's pulling; that activation runs $550–$850. It costs a fraction of a full retrofit, because the hard part — getting the pipe in the ground — is already finished.
Aurora is on the far side of the metro from Golden — do you really come out?
Yes — the whole Denver metro is our working territory, not just the towns close to our Golden base. Aurora gets the same free on-site assessment and written quote, usually the same day, as any other city we serve. Distance from Golden doesn't change the service, only the drive.
Start With the Free Assessment
Ivan comes out, walks the home, and you get a written quote — usually the same day. No cost, no obligation.