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The answer may vary based on where you live. Residential sewer lines are generally buried 5 feet to 6 feet under the ground. However, it's not uncommon to see pipes buried as deep as 8 feet in colder climates in order to ensure that piping is placed below the freeze line. Digging depth could impact your sewer line replacement cost.

It is a common belief that excavation is easier or less costly when done in the summer or when the ground is not frozen. Seasons have little effect on when excavation can occur; however, inclement weather can prolong the duration of the job and potentially increase costs. For this reason, those in rainy climates may opt for seasons with milder weather.

Because decomposed granite is a durable material, a crushed rock or gravel base is optional as long as the DG is properly installed and compacted. However, installing a base is a good idea because it will ensure proper drainage and stability and act as a weed suppressant (although you may still occasionally have to pull weeds). Installing an adequate base can also increase the durability of driveways and walkways. If you forego the paver base or gravel underneath, line the area with landscaping fabric to avoid weeds.

Maintain open communication and address issues as they arise, ensuring contract terms cover potential delays.