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Sewer trouble never waits for a free weekend. If you are facing underground sewer line replacement, you want a clear answer on timing. The short answer is that most sewer line replacement projects take 1 to 3 days once work begins. The full timeline depends on permits, utility locates, soil conditions, and whether we use trenchless or excavation methods. Below is a simple guide so you can plan with confidence.
The Quick Answer: Typical Timelines You Can Expect
For most Denver metro homes, underground sewer line replacement runs 1 to 3 working days once the crew is on site and the permit is active. Smaller spot repairs can finish the same day. Full replacements that need street work or deep digs may take 3 to 5 days. Trenchless methods often cut the active work to 1 day.
Why the range exists:
- Access. Easier yard access is faster than tight urban lots or garages.
- Depth. Older Front Range homes can have deep lines due to slope and frost depth.
- Method. Trenchless installation is typically quicker than open trench excavation.
- Inspections. Most cities require an inspection before backfill.
In all cases, we size the crew for your site so we can move efficiently and pass inspection the first time.
What Drives the Timeline
Several factors influence the clock. Understanding these helps you predict your specific window.
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Diagnosis quality
- We start with video inspection and location equipment to map the line, find breaks, and spot offsets or root intrusions. Accurate mapping avoids surprises that slow a job.
- Service we provide: “Video camera inspections to pinpoint blockages and damage with precision accuracy.”
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Permit and utility locate
- Most municipalities require a sewer permit and a final inspection. We handle the paperwork and scheduling for you.
- Colorado 811 utility locates are typically completed within two business days. Digging cannot start until locates are cleared.
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Site conditions
- Expansive clay, common along the Front Range, can add shoring time during excavation.
- Driveways, patios, mature cottonwood roots, and sprinkler systems require careful protection or rerouting.
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Repair scope and method
- Spot repairs are fastest when the rest of the line is healthy.
- Long runs with multiple failures favor full replacement or trenchless methods.
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Weather and safety
- Freeze-thaw cycles in late winter can slow digging. We plan staging and safety measures in advance to prevent delays.
Trenchless vs Traditional Excavation: Time Comparison
Choosing the right method can cut days off the project.
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Trenchless pipe bursting or lining
- Typical active work time: 1 day for many homes, 2 days for longer runs or multiple access pits.
- Minimal surface disruption. Yards, driveways, and landscaping often remain intact.
- Best when the host pipe path is suitable and there is not excessive collapse.
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Traditional excavation
- Typical active work time: 2 to 4 days depending on depth, length, soil, and obstacles.
- Required when the pipe is collapsed, bellied extensively, or has major alignment issues that trenchless cannot correct.
- We provide shoring, traffic control if needed, and full restoration.
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Hybrid approach
- Sometimes we open a small section to fix a severe offset, then finish with trenchless. This often saves a day compared to full-length digging.
Step-by-Step Replacement Timeline
Here is how an average project flows from the first call to final backfill.
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Same-day evaluation and diagnosis
- We perform a camera inspection to confirm the cause and location of the failure. If a backup is present, we clear it safely first.
- Services include: “Hydro jetting services for thorough cleaning of stubborn obstructions.” This high-pressure water jetting removes years of buildup so the camera can see clearly.
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Options and pricing
- You receive an itemized, upfront estimate with repair or replacement options. No hidden fees.
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Permits and utility locates
- We file the permit and schedule inspections. Colorado 811 locates are requested promptly. Typical wait: up to two business days for marking.
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Scheduling and staging
- Materials are ordered and delivered. We plan access routes and property protection. You receive a clear start date and crew arrival window.
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Excavation or trenchless access
- We expose the pipe or prepare access pits. We protect turf, beds, and hardscapes and keep a clean jobsite. Safety barriers are set.
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Pipe replacement or structural repair
- For replacement we use modern PVC, installed to proper slope. Typical sewer slopes range from 1/8 inch to 1/4 inch per foot depending on pipe size and code. Joints are solvent welded and bedded per spec.
- For targeted fixes we perform “Spot repairs for localized issues and minor damage to minimize costs.”
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Testing and inspection
- We perform function tests, then call for city inspection. Most Front Range municipalities require inspection before backfill. We coordinate timing so you are not waiting.
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Backfill and restoration
- After approval we backfill in compacted lifts and restore surfaces to pre-work condition as agreed.
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Final walkthrough and care plan
- We review the completed work, share video documentation if applicable, and propose preventative maintenance like periodic camera checks.
How Permits and Inspections Affect Time in the Denver Metro
- Most cities around Denver, Aurora, Lakewood, and Thornton require a sewer permit and a final inspection before backfill.
- Street or right-of-way work may need traffic control plans and additional approvals, which can add a day or two.
- Our team submits applications immediately and schedules inspections to align with crew progress. This is the key to keeping a 1 to 3 day active work window.
Local tip: Many homes in Arvada and Westminster built in the 1950s and 1960s transitioned from clay to cast iron. We often find root intrusions at old clay joints and corrosion in older iron. A proper camera survey before permits helps pick the right fix.
When a One-Day Replacement Is Realistic
You might qualify for a one-day replacement if you have:
- A straight run from the home to the cleanout or city tap with no large trees.
- Moderate depth and stable soil that needs minimal shoring.
- Good access for machinery and material staging.
- Trenchless-friendly conditions without major collapses.
We confirm all four items during the inspection, then bring a crew sized for a same-day finish.
When It Can Take 3 to 5 Days
Expect a longer window if:
- The pipe is very deep or located under a driveway or garage slab.
- Multiple bends, bellies, or severe offsets require extensive correction.
- Street work or right-of-way access is required.
- Weather or groundwater management requires added safety steps.
In these cases we provide a written schedule and milestone updates so you always know what is next.
Service Options We Offer for Sewer Problems
We match the fix to the problem, starting with accurate diagnosis.
- “Video camera inspections to pinpoint blockages and damage with precision accuracy.”
- “Hydro jetting services for thorough cleaning of stubborn obstructions.”
- “Spot repairs for localized issues and minor damage to minimize costs.”
- Joint repairs for separated connections that leak or allow roots.
- “Complete sewer line replacement when repairs are no longer cost-effective.”
- Traditional excavation when severe pipe damage requires full replacement.
- Emergency sewer services for backups and urgent failures. We provide 24/7 service and same-day options.
How to Speed Up Your Project
Homeowners can help reduce delays with a few simple steps:
- Approve the estimate promptly so we can request locates and permits the same day.
- Clear access to cleanouts, gates, and driveway areas before crew arrival.
- Mark sprinkler lines and pet areas if known. We will verify, but it saves time.
- Choose the maintenance plan that fits your home so we catch issues early.
Our Green Club membership provides scheduled checkups, priority service, and repair discounts. The HERO Club adds front-of-the-line scheduling, extra discounts, no emergency fees, and convenient auto-renewal.
Safety, Compliance, and Quality Controls You Can Trust
- Licensed and insured. Plumbing Licenses: MP.00189179 and PC.0003685.
- A+ rating with the Better Business Bureau and thousands of 5-star reviews.
- 100% Satisfaction Guarantee and upfront, honest pricing with no hidden fees.
- Transparent video documentation before and after work when applicable.
We do not guess. We diagnose, document, and stand behind the result.
Signs Your Line Needs Replacement Soon
Acting early can turn a 4-day emergency into a 1-day planned job.
- Recurring mainline backups despite previous cleaning.
- Sewer gas smells in the yard or basement.
- Slow drains home-wide, especially after rain or snowmelt.
- Lush green streaks in the lawn above the sewer path.
- Sinking ground or cracks in slabs from soil washout.
If you notice these, book a camera inspection. Early detection prevents minor issues from becoming major disasters.
What It Costs in Time vs Money
Sometimes the fastest method is not the cheapest, and sometimes it is. Here is how we help you weigh both:
- We compare targeted spot repair against full replacement. If the line has multiple failures, full replacement often saves both time and money long term.
- We lay out trenchless vs excavation costs, restoration needs, and expected service life. Modern PVC is durable and code-compliant.
- We provide clear, itemized estimates so you can decide with confidence.
Our goal is the right repair at the right speed with zero surprises.
Where We Work and What We See Locally
We serve Denver, Aurora, Lakewood, Thornton, Arvada, Boulder, Westminster, Centennial, Lafayette, and Longmont. Along the Front Range we frequently see:
- Expansive clay soils that require careful bedding and backfill.
- Root intrusion from mature cottonwoods and elms.
- Legacy clay and cast iron segments from mid-century builds.
Local experience matters. We plan for these conditions so your timeline stays on track.
Special Offer
Special Offer: $87 Drain Clearing Special. Main line only. During standard business hours. May not be combined with other offers.
Use this to clear a blockage and complete a professional camera inspection so we can deliver a precise sewer line replacement plan with firm timelines.
What Homeowners Are Saying
"We had an issue with a broken sewer venting pipe in our home. Gerry, our technician, was on time, knowledgeable, and took care of the repair in under an hour. The pricing was excellent and the service superb. Highly recommend Gerry and Fix-it 24/7." –Gerry Customer., Denver
"Super friendly and professional. Had a clogged pipe from our kitchen and he was able to clear it quickly and effectively. A bit pricey but worth it." –Unknown C., Aurora
"Fix-It 24/7 was prompt in all our communication which was especially impressive for a Sunday afternoon. The scheduler was great and even asked if there was a veteran or 1st responder living in the home. My son is recently separated from the US Navy and living with us while he’s in school so we were offered some great “hero” benefits!! Martin, the plumber who corrected our issue, was professional, thorough, fast, and tidy. He wore booties and use a mat under his machine. He also explained the issue well and suggested the drain be scoped to get a full examination of our problem. (This wasn’t even an upsell due to the veteran benefit.) 10/10 would recommend this service and Martin specifically." –Martin Customer., Lakewood
"From the initial call to the completed repair, their team was professional, punctual, and respectful. They explained the issue thoroughly and gave an honest quote before doing any work." –Unknown C., Thornton
Frequently Asked Questions
How long does underground sewer line replacement usually take?
Most replacements take 1 to 3 working days once permits and utility locates are cleared. Complex digs, street work, or deep lines can take 3 to 5 days.
Does trenchless sewer replacement save time?
Yes. Trenchless pipe bursting or lining often finishes in 1 day. It avoids large trenches, reduces restoration, and speeds inspections.
How fast can you start in an emergency backup?
We offer 24/7 emergency service with same-day options. We can clear the line, perform a camera inspection, and start permits immediately.
Do I need a permit for sewer line replacement?
In most Front Range cities, yes. We handle the permit and schedule inspections so work and sign-offs move without delays.
Will my yard be restored after the job?
Yes. We protect your property during work and restore surfaces after final inspection and backfill, per the agreed scope.
In Summary
Most underground sewer line replacement projects finish in 1 to 3 days once work begins. The exact timeline depends on permits, utility locates, soil, and method. In the Denver metro, our licensed team uses camera diagnostics and proven trenchless or excavation techniques to finish fast and right the first time. Ready for a precise plan and timeline?
Get Your Timeline and Price Today
Call Fix-it 24/7 at (720) 577-4266 or visit https://fixmyhome.com/ to schedule your camera inspection. Ask about our $87 Drain Clearing Special and the Green Club at $29.95 per month for priority service and discounts. Serving Denver, Aurora, Lakewood, Thornton, Arvada, Boulder, Westminster, Centennial, Lafayette, and Longmont.
About Fix-it 24/7 Plumbing, Heating, Air & Electric
Fix-it 24/7 serves Denver, Aurora, Lakewood, and the entire Front Range with licensed, bonded, and insured plumbers. We provide 24/7 emergency response, honest flat-rate pricing, and a 100% Satisfaction Guarantee. We hold an A+ BBB rating and maintain plumbing licenses MP.00189179 and PC.0003685. Home protection matters, so we wear shoe covers, use floor mats, and clean up fully. Thousands of 5-star reviews back our work. Ask about our Green Club at $29.95 per month and our HERO Club for front-of-the-line scheduling and no emergency fees.
