- HEP Plumbing
- Trenchless Repair Technology

Trenchless Repair Technology
Trenchless Repair Technology | Main Line Issues | Plumbing | Walland
If a broken sewer or water line is turning your peaceful Walland home into a construction zone, HEP’s cutting-edge trenchless repair technology is the stress-free fix you’ve been searching for. By relining or replacing pipes from the inside, our specialists restore full flow without tearing up your lawn, driveway, or landscaping—saving you from weeks of noise, mud, and costly cleanup. It’s precision plumbing that keeps your property pristine and your routine uninterrupted.
Whether you’re battling persistent backups, root intrusion, or other main line issues, HEP delivers long-lasting results in a fraction of the time of traditional dig-and-replace methods. Our locally trusted team pinpoints the problem with high-resolution cameras, then deploys state-of-the-art materials that cure in place to create a smooth, durable pipe—often in just one day. Ready to put the shovels down and get your lines flowing freely again? Call HEP and experience Walland’s fastest path to worry-free plumbing.
FAQs
What is trenchless repair technology and how does it fix a damaged main sewer line?
Trenchless repair is a no-dig or minimal-dig method that restores a failing underground pipe from the inside, rather than excavating the entire line. After an in-pipe video inspection pinpoints the problem, we clean the line and either insert a cured-in-place pipe (CIPP) liner or pull a new HDPE pipe through the existing host line using pipe-bursting equipment. The resin-saturated liner or new pipe forms a seamless, joint-free replacement that resists root intrusion, corrosion, and leaks. Because the work is completed through small entry and exit pits—often at the cleanout and curb connection—your driveway, landscaping, and mature trees in Walland stay intact.
What kinds of main line issues in Walland homes can trenchless methods solve?
Trenchless technology reliably handles most structural or flow-related defects, including: • Cracks, fractures, and offset joints caused by ground movement or aging terracotta and cast-iron pipe; • Root intrusion that repeatedly blocks flow; • Moderate to severe corrosion, scaling, or tuberculation; • Small sections of missing pipe (up to several feet) or infiltration caused by groundwater; • Undersized or outdated pipe materials that need upsizing or upgrading to code-compliant PVC or HDPE. The only common exclusions are pipes that have completely collapsed, lack at least 10 % structural integrity, or run under footing where bursting is prohibited by code—situations we identify during the camera inspection.
Will trenchless repair disturb my yard, garden, or driveway?
Very little. Traditional sewer replacement can require a backhoe trench 3–6 ft wide running the full length of the lateral—destroying turf, landscaping, sidewalks, and hardscape. Trenchless techniques need only two access pits, each about 3 ft × 4 ft, usually placed at existing cleanouts or near the city tap. Your lawn, flowerbeds, decorative rock, and stamped concrete remain largely untouched, saving you thousands in restoration costs and weeks of property disruption.
How long does a trenchless main line job usually take compared with open-cut replacement?
Most Walland single-family projects are completed in one day. A standard 40- to 60-ft residential liner cure takes 2–4 hours; prep and reinstatement add another few hours. In contrast, open-cut sewer replacement often extends to 3–5 days: one day to dig, one day to replace pipe, and several days for inspections, backfill, and surface restoration. Trenchless methods also avoid weather delays tied to open trenches, so your plumbing is back in service the same afternoon in most cases.
Is trenchless repair more expensive than traditional digging, and what are the long-term savings?
Upfront, trenchless repair can be 10–20 % higher than open-cut pipe replacement if you compare only the plumbing invoice. However, when you add the hidden costs of landscape restoration, driveway or patio replacement, sidewalk permits, and potential hotel stays while the water is off, trenchless solutions are typically 25–40 % less overall. The new liner or HDPE pipe has a 50-year service life, is joint-free, and is far less likely to need root cutting or additional repairs, saving hundreds in maintenance every few years.
Does Blount County allow trenchless technology, and do you handle the permits and inspections?
Yes. Blount County and the Town of Walland recognize ASTM F1216 (CIPP) and ASTM F2781 (pipe bursting) as approved rehabilitation methods. We secure all necessary county plumbing and right-of-way permits, schedule the mandatory post-installation CCTV inspection, and provide the engineer’s certification letter required for final approval. Homeowners don’t have to navigate any paperwork or coordinate with inspectors—we manage the entire compliance process from start to finish.