The short version
True moles are rare here; check for gophers or voles. Find an active tunnel, then trap it. Repellents and sonic stakes rarely work.
- Usually one to three moles.
- Find an active runway first.
- Traps work best; repellents rarely do.
- Moles eat earthworms, not plants.
- Fix the lawn after trapping.
Homeowners in Longmont with tunnels, ridges or mounds in the lawn.
What to look for
One mole can dig a lot of tunnel. Gophers and voles here are busiest in spring and fall. Their tunnels lift turf, dry out roots and trip people up. They hunt earthworms and grubs. Moles don't eat plants.
- 1Raised ridges across the lawn.
- 2Round, volcano-shaped dirt mounds.
- 3Spongy patches underfoot.
- 4Tunnels along walkways and beds.
- 5Fresh mounds after rain.
- 6Dead turf strips over tunnels.
Why it’s worth acting soon
- Tunnels spread across the lawn.
- Mounds make mowing harder.
- Ridges become trip hazards.
- New moles move into empty tunnels.
Treatment options and typical costs
Runway Identification and Activity Survey
$75–$200
Good mole work is mostly finding the right tunnel. The provider maps the runway network in Longmont, flags the active sections, and picks two or three trap points. That map also becomes the baseline for follow-up visits in Longmont.
- Time
- 45–90 minutes
- Best for
- Every job; trapping fails without it
Mole-Labeled Baits
$100–$300 per application
Bait labeling matters in Longmont: products registered for moles must be applied by their label, with the stated amounts and placement. Ask to see the label and where bait went. Grain baits meant for other pests do not work on moles in Longmont.
- Time
- 30–45 minutes
- Best for
- Large or hard-to-trap areas; used exactly as labeled
Follow-Up Monitoring
$50–$150 per visit; often included in plans
Because neighboring yards feed new moles into a Longmont lawn, monitoring is what separates a finished job from a pause. Those are the seasons when Longmont moles push closest to the surface.
- Time
- 20–30 minutes per visit
- Best for
- Every trapping job; confirms the yard is clear
Lawn, Moisture, and Bed Exclusion Work
$150–$450 depending on scope
Yards next to woods, fields or creeks keep getting new moles. Exclusion barriers protect the beds that matter most in Longmont while the open lawn is managed by trapping. This mix gives Longmont homeowners a realistic long-term plan.
- Time
- 1–4 hours
- Best for
- Repeat problems; protecting beds and small areas
Prices are typical published ranges. Ask what’s included before you compare quotes.
Main runways often follow edges like beds, walks and fences. That's where traps work best.Which moles live around Longmont.
Both eat plants, so treatment differs from mole trapping. Shallow runways through the grass point to voles. If the mounds around Longmont are crescent-shaped, it's a gopher. Voles leave surface runways in the grass. Pocket gophers eat roots and leave crescent-shaped mounds. Most lawn tunnels and mounds here are pocket gophers or voles. True moles are uncommon around Longmont.
When they tunnel.
Frozen ground in winter sends them deeper. Summer heat and drought also push them down.
Moles have big, spade-like front feet built for digging. They eat earthworms and grubs, not plants.Finding an active tunnel.
Lawns from Longmont out to Boulder and Loveland show the same pattern. Main runways often follow edges: walks, fences and beds. If it's raised again, it's active. Check it in a day or two. Step down a short stretch of tunnel and mark it. Look for fresh ridges and mounds after rain.
A year of moles in Longmont.
- Spring: peak tunneling. Best time to trap. - Summer: highs near 88°F in Longmont push moles deeper. - Fall: a second burst near the surface. - Winter: lows near 16°F in Longmont. Ground freezes; moles go deep.
Mole, gopher or vole?
- Mole: raised ridges and round, volcano-like mounds. - Gopher: crescent-shaped mounds with a plugged hole. - Vole: surface runways and small holes in the grass. - Damage: moles don’t eat plants; gophers and voles do.
What works, and what doesn’t.
- Works: traps set in active runways. - Sometimes: labeled baits, used deep in tunnels. - Rarely: castor oil, sonic stakes, gum or flooding. - Rarely alone: grub control, since they mostly eat earthworms.
Protecting garden beds.
Bury quarter-inch hardware cloth around beds, about two feet deep. Bend the bottom edge outward. Raised beds can get a mesh floor before you fill them. It's work up front, but it lasts for years.
Lawn care that helps.
Water deeply but less often. Constantly wet lawns draw earthworms, and moles follow. Healthy turf recovers from tunnels faster. Grub control alone rarely moves moles on.
Signs the problem is over.
- No new mounds for two weeks. - Stepped-down runways stay flat. - Traps stay untouched for several checks. - New ridges? Another mole may have moved in.
Choosing a trap.
- Scissor traps: set straddling an active runway. - Harpoon traps: set on top of a pressed-down ridge. - Tunnel traps: sit inside a dug-out runway. - Placement: main runways beat fresh feeding ridges. - Rules: check what your state allows first.
Mole myths.
- Chewing gum in tunnels: no evidence it works. - Castor oil: may move them briefly, not away. - Moles eat bulbs: no, voles using their tunnels do. - Many mounds, many moles: usually it’s one or two. - Flooding tunnels: they just dig new ones.
Moles aren’t all bad.
Moles loosen and aerate soil. They eat grubs and other insect larvae. A mole in a field may be fine to leave. In a front lawn or garden, most people want them gone.
Fixing the lawn afterward.
Wait until the mole is caught. Rake mounds flat and step ridges down. Water to settle the soil. Overseed bare spots in spring or fall.
Moles, kids and pets.
Moles don't bite unless handled. Keep kids and pets away from traps. Baits must go deep in tunnels, exactly as the label says. Digging dogs can wreck a lawn faster than moles.
What a mole visit looks like.
The tech walks the lawn and maps the tunnels. They test which runways are active. Traps go into the main runways. They check traps every day or two.
Moles, voles or gophers?
- Moles: raised ridges and round, volcano-shaped mounds. - Voles: narrow surface runways through the grass. - Gophers: crescent-shaped mounds with a plugged hole. - Chipmunks: small clean holes with no soil around them.
Watering and moles.
Moles follow moist soil, where worms rise near the surface. Water deeply and less often instead of a little every day. Fix leaky sprinklers that leave soggy corners.
Flower beds and borders.
Moles tunnel under beds looking for worms, not to eat plants. Plants wilt when their roots are left hanging in air pockets. Press tunnels down firmly and water to settle the soil.
Questions to ask before you sign.
- Is it a mole, gopher or vole? - Which method will you use? - How often will you check traps? - What if another mole moves in? - Is lawn repair included?
Moles by the numbers.
Around Longmont, before you hire, walk the yard and flatten a few ridges with your foot, then check back the next day — the ones that are raised again are the active runs a plan should target. Around Longmont, because moles are solitary, several fresh ridges usually mean more than one animal. Around Longmont, tunnels often run just under the surface, with deeper nesting chambers below, and a single mole can maintain an extensive system across a yard. Around Longmont, moles do not eat plants; they tunnel for earthworms, grubs, and soil insects, and the ridges they leave behind are what most people notice.
What affects the price
- State rules that affect trap or bait choices.
- Irrigation and drainage corrections.
- Soil type: rocky or clay ground slows trap sets.
- Number of follow-up rechecks included.
- Travel distance to rural properties.
- Per-mole pricing versus per-visit pricing.
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What bothers you most about moles?
When to call for help
Call if new mounds keep appearing for more than a week. if you can't find an active runway. A pro can usually catch the mole within a few visits.
What you can do yourself
Set the trap exactly as the instructions say. Skip sonic stakes, gum and flooding. Trapping yourself can work.
Moles in Longmont
Around Longmont, most providers include a follow-up visit in the plan, but the terms vary, so ask exactly what is covered and for how long before you decide. Around Longmont, comparing written quotes side by side is the easiest way to see what is actually included, because the scope, prep steps, and follow-up terms vary a lot between providers. Around Longmont, the semi-arid climate means moles activity tends to follow spring and fall; active year-round in mild soil, so scheduling the visit before the busy stretch usually means a faster response and a cleaner quote. In Longmont's neighborhoods, irrigated lawns and garden beds are favorite spots. Winter lows near 16°F in Longmont freeze the ground, so moles go deeper until spring. Longmont gets about 14 inches of rain a year, so moles favor watered lawns and shady beds.
Local research
Moles in Longmont, CO: what the public record shows
Before you compare quotes, it helps to know which moles actually live in Colorado, when they are busiest around Longmont, and what the state figures look like. Everything below links to the agency or university page it came from.
Mole species recorded in Colorado
- Eastern mole (Scalopus aquaticus) — Range across most of the eastern U.S. to Wyoming and Colorado; the only mole in Missouri.
When moles are busiest around Longmont
Breeding late winter, young in March or April.
Most burrowing complaints west of the eastern plains in Colorado involve pocket gophers or voles rather than moles.
Rules that apply in Colorado
Sources: Colorado Parks and Wildlife; Moles; Virginia Cooperative Extension (Virginia Tech). Figures are quoted as the source prints them. How we check our sources
Simple ways to keep moles away
- Edge beds with buried hardware cloth.
- Check for fresh mounds after rain.
- Act early in spring.
- Fix tunnels only after trapping.
- Skip sonic stakes and castor oil.
Ask what the quote covers if another mole moves in after the first one is caught.Did you know?
One mole can hold a territory over an acre
Mole saliva paralyzes earthworms for later storage
Questions people ask
What kind of traps do professionals use?
Usually scissor or harpoon traps set in active runways. They're the most reliable method.
Are mole baits safe around pets and children?
Use them only as the label directs, deep in tunnels. Traps are often the safer choice.
When is the best time to trap moles?
Spring and fall, when they're tunneling near the surface. Right after rain is ideal.
Will grub control get rid of moles?
Killing grubs alone usually doesn't move them on. Earthworms are their main food. Rarely.
How long does professional mole control take?
Usually one to three weeks of regular trap checks.
When are moles most active in Longmont?
Spring and fall, especially after rain. Frozen winter ground sends them deep.
Are moles common in Longmont?
Not very. Around Longmont, gophers and voles cause most lawn damage.
Nearby cities
Related guides
Sources (5)
The facts in this article come from the public sources listed above. Every home is different, so ask the company you talk to about pricing and what’s included. Published by Mole Exterminator · Updated September 11, 2026 · How we write these guides