Underground Drain Cleaning Service in Westminster
An underground drain cleaning service clears the buried pipes that carry roof water from your downspouts away from your Westminster home. Fall leaves, roof grit and silt pack these lines, and a blocked one can send water back toward the foundation. Clearing them before hard freezes is the smart timing. Call to be connected with a local provider.
- Underground drains carry water from downspouts to the yard, curb or a pop-up emitter.
- Leaves, roof granules, silt and roots are the usual causes of a clog.
- Around Denver, the average first freeze is October 7th, so fall is the time to clear them.
- Water spilling near the house matters in Colorado, where expansive soil swells when wet.
- Ask for an inspection and a written quote that names the method before any work starts.
What is an underground drain cleaning service, and what does it clear?
An underground drain cleaning service clears the buried pipes that take rain and snowmelt from your gutters and downspouts out to a safer spot. In Westminster yards, these lines usually end at a pop-up emitter in the lawn, a curb outlet or a dry well. When they clog, water backs up the downspout and spills next to the house.
A provider can clear many kinds of buried drain lines:
- Downspout extensions that run under the lawn.
- Gutter drains that run under a driveway or sidewalk to the curb.
- Yard and area drains in low spots or window wells.
- Foundation drain outlets, where they are reachable.
These lines are separate from the sewer. They carry roof and yard water only, so the fix is usually cleaning, not sewer work.
Why do underground gutter drains clog in the fall?
Underground gutter drains clog most in the fall because leaves, seeds and needles wash off the roof faster than the pipe can carry them. Once leaves settle in a low spot or bend, silt and roof grit pile up behind them. A light rain then turns the pile into a dense plug.
Common causes include:
- Leaves and needles that slip past the gutter and down the spout.
- Roof granules that settle like sand in flat runs of pipe.
- Corrugated pipe, whose ridges catch debris more than smooth pipe does.
- Tree roots that find the moisture inside a loose joint.
- Crushed sections under a driveway, path or heavy landscaping.
A clog in October can freeze in place by December, which is why fall cleaning matters.
What are the signs a buried downspout drain is blocked?
The clearest sign is water overflowing the gutter or bubbling out of the downspout joint during a rain, even when the gutter itself is clean. If the pop-up emitter in the yard never opens, the water is not reaching it.
- Gutters overflow at one corner during steady rain.
- Water pools or spills at the base of a downspout.
- Ice builds up around one downspout in winter.
- A soggy strip or sinkhole appears along the pipe path.
- Damp spots show up on the basement wall near one corner.
A simple test is to run a garden hose into the downspout for a few minutes. If water backs up instead of flowing out at the far end, the line is likely blocked.
Need help now? Call to be connected with a local provider in Westminster who can check availability for your address.
Can you clean an underground drain yourself?
You can sometimes clear a short, shallow downspout drain yourself with a garden hose or a hand drain snake fed from the outlet end. Pull the downspout off at the connector, flush with water and see if it runs clear. Stop if the line stays blocked or the hose meets a hard stop.
Do-it-yourself work has limits:
- Pressure washer attachments can tear corrugated pipe or blow apart loose joints.
- Long runs under driveways and sidewalks are hard to reach with hand tools.
- A hard stop may be a crushed pipe, not a clog, and pushing harder will not help.
If you have flushed it once and the water still backs up, it is time to call.
How does a provider clear an underground drain line?
Most providers clear a buried drain line with either a drain snake or a water jetter, and many use a small camera to see what is inside. The right choice depends on the pipe type, the length of the run and what the camera shows.
- Snaking uses a spinning cable to break up a packed clog of leaves or roots.
- Water jetting uses a pressurized hose and nozzle to wash silt and grit out of the whole pipe. Pressure has to suit the pipe, since thin plastic and corrugated lines are easier to damage.
- Camera inspection shows whether the pipe is crushed, separated or full of roots.
If you want to compare jetting methods for the sewer side of your home, our page on drain cleaning covers indoor and main lines.
Is it a gutter drain problem or a sewer problem?
If the trouble shows up only outside during rain or snowmelt, it is most likely a gutter or yard drain. If indoor drains are slow, toilets gurgle or water comes up in a basement floor drain, the sewer line is the more likely cause. They are separate systems with different fixes.
In some older homes, a downspout may be tied into a pipe near the house that is hard to identify. A camera check can show where the water goes. For indoor symptoms, see our guide on a clogged drain or a sewer line, or the sewer line repair page.
What happens during the visit?
A visit for an underground drain usually follows the same steps, whether the answer turns out to be a quick clean or a pipe repair.
- Inspection. The provider asks what you have seen, finds where the downspout enters the ground and where the line comes out, and may run water or a camera through it.
- Options explained. You hear what is causing the backup and what each option would do: snaking, jetting, root cutting, or replacing a crushed section.
- Written quote before work. You get a written quote that names the method and the problem before any work begins, so you can decide without pressure.
Ask the provider to show you the camera footage or the debris that came out.
How do you keep underground drains flowing through winter?
The simplest plan is to clear gutters and buried drains after most leaves have fallen and before steady freezing weather. A clean line drains snowmelt on warm afternoons instead of holding water that freezes overnight.
- Clean the gutters first so new leaves do not wash straight back into the line.
- Add a leaf strainer or debris catcher where the downspout meets the buried pipe.
- Check that each pop-up emitter opens and is not buried by mulch or sod.
- Keep the outlet end clear of snow piles from shoveling or plowing.
If one downspout keeps icing over, that line is worth a closer look before spring storms.
What should Westminster-area homeowners know about fall drain cleaning?
Homes in Westminster, Arvada, Broomfield, Thornton and Northglenn share local conditions that make fall the right time for underground drain cleaning.
- Freeze timing. NWS Boulder lists Denver's average first freeze as October 7th and its average last freeze as May 5th, the nearest official dates for the north metro. That is a long season for a clogged line to sit frozen in the Denver area.
- Early snow. NWS Boulder lists Denver's average date of first measurable snowfall as October 19th, and its average seasonal snowfall as 56.9 inches.
- Soil and water. The Colorado Geological Survey calls expansive soil Colorado's most significant geologic hazard, and says water from natural or human sources makes it swell. Moving roof water away from the house is one way to limit added water near the foundation.
- Sprinklers too. The City of Westminster's freeze guidance says to turn off and drain irrigation sprinkler systems before freezing weather.
- Insurance. The Colorado Division of Insurance says flooding from rain is typically excluded from homeowners policies. Check your own policy and keep photos of any water you find.
If you live nearby, see the Arvada or Broomfield pages, or the full service areas list.
Related pages
Questions people ask
What does an underground drain cleaning service actually do?
An underground drain cleaning service clears the buried pipes that carry water from your downspouts and yard drains away from the house. The provider finds the clog, removes leaves, silt or roots with a snake or water jetter, and checks that water flows out the far end.
How do I know if my underground gutter drain is clogged?
Run a garden hose into the downspout for a few minutes. If water backs up or spills at the base instead of coming out at the yard outlet or pop-up emitter, the buried line is likely clogged.
Why is water coming out of my downspout joint when it rains?
Water leaking from the downspout joint usually means the buried pipe below it is blocked. The water has nowhere to go, so it rises and escapes at the first loose connection.
When is the right time of year to clean underground gutter drains in Colorado?
Late fall, after most leaves are down and before steady freezing weather, is the usual timing. Around Denver the average first freeze is October 7th, so many homeowners check these lines in October or November.
Is it okay to use a pressure washer to clean my buried downspout pipe?
It is risky. A pressure washer can split thin plastic or corrugated pipe and push debris further in. A garden hose or hand snake is safer for a homeowner, and a provider can match jetter pressure to the pipe.
What is the white pop-up thing in my yard at the end of the downspout pipe?
That is a pop-up emitter. Water pressure from the buried drain pushes the cap open so water can spill out on the lawn, then it drops shut to keep debris out.
Why won't my pop-up emitter open when it rains?
A pop-up emitter that stays closed usually means water is not reaching it. The pipe may be clogged with leaves or silt, crushed, or disconnected. The emitter itself may also be stuck under sod or mulch.
Can tree roots get into underground gutter drain pipes?
Yes. Roots find moisture at loose joints and grow inside, especially in older or corrugated pipe. Cutting them clears the line for now, but they often return unless the damaged section is replaced.
Should I replace corrugated downspout pipe with smooth pipe?
Many homeowners do when corrugated pipe keeps clogging. The ridges in corrugated pipe catch debris, while smooth-wall pipe tends to flush cleaner. A camera check helps decide if the existing pipe is worth keeping.
Can a clogged underground drain cause water in my basement?
It can add to it. When roof water spills next to the house instead of draining away, more water soaks into the soil near the foundation. A damp basement wall near one corner is worth checking against that corner's downspout.
Who do I call to clean underground drains in Westminster, CO?
A local drain cleaning provider can clear buried gutter and yard drains in Westminster and nearby cities. Call the number on this page to be connected with a local provider who handles underground drain lines.
Will homeowners insurance pay for water damage from a clogged gutter drain?
It depends on your policy. The Colorado Division of Insurance says flooding from rain is typically excluded. Check your own policy, take photos of any water damage, and ask your insurer before making repairs.
What should I ask before hiring someone to clean my underground drains?
Ask how they will find the clog, which method they plan to use, whether they will run a camera, and what happens if the pipe is crushed. Ask for a written quote that names the method before any work starts.
Do I need to clean my gutters before getting my underground drains cleaned?
Yes, ideally. If the gutters are full of leaves, the next rain will wash debris straight back into the freshly cleaned line. Clean the gutters first, then have the buried drains cleared.
Why does ice keep forming around one downspout all winter?
Ice that builds at one downspout usually means the buried drain below is slow or blocked, so meltwater sits and freezes. Snow piled over the outlet end can cause the same problem.
Can a crushed underground drain pipe be cleaned, or does it need to be replaced?
A crushed section usually needs to be dug up and replaced, because cleaning cannot reopen a flattened pipe. A camera inspection shows where the damage is, so only that section needs work.
Talk to someone about your plumbing problem
Call to be connected with a local provider who can check availability for your address and explain the next step.