{"id":5707,"date":"2026-07-29T12:08:01","date_gmt":"2026-07-29T12:08:01","guid":{"rendered":"https:\/\/bigwesttemp.com\/inhouseplumbing\/?page_id=5707"},"modified":"2026-07-29T12:12:39","modified_gmt":"2026-07-29T12:12:39","slug":"why-two-similar-homes-have-different-sewer-replacement-costs","status":"publish","type":"page","link":"https:\/\/bigwesttemp.com\/inhouseplumbing\/case-studies\/why-two-similar-homes-have-different-sewer-replacement-costs\/","title":{"rendered":"Why Two Similar Homes Can Have Very Different Sewer Replacement Costs"},"content":{"rendered":"
\n
\n\t

Why Two Similar Homes Can Have Very Different Sewer Replacement Costs<\/h1>\n<\/div>\n<\/div><\/div><\/div>
\n
\n\t

This case study examines how two homes with similar size and fixture counts resulted in significantly different pricing due to layout and excavation differences in full under-slab cast iron sewer replacement.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div>

\n
\n\t

The Situation<\/h2>\n

These two projects \u2014 one in Dallas and one in Richardson \u2014 were both full under-slab cast iron sewer replacement jobs. While the homes had similar overall size and a similar number of bathrooms and plumbing fixtures, the floor plans and sewer layouts were different.<\/p>\n

Based on home size and fixture count alone, a homeowner would reasonably expect the pricing to be close.<\/p>\n

It wasn\u2019t.<\/p>\n<\/div>\n<\/div><\/div>

\n
\n\t

The Difference<\/h2>\n

When these two projects were compared on the same basis \u2014 replacement only, with no discounts, sprinkler considerations, brick work, or extended warranty options \u2014 the Dallas project came in approximately $7,700 less than the Richardson project.<\/p>\n

Both projects involved tunneling, trenching, and plumbing work. The difference was not about cutting scope or doing less work overall.<\/p>\n<\/div>\n<\/div><\/div>

\n
\n\t

What Drove the Difference in This Case<\/h2>\n

In this comparison, the primary difference between the two jobs was the amount of tunneling required under the house.<\/p>\n

Under-slab cast iron sewer replacement is excavation-driven work. Tunnel footage has a major impact on labor, time, and cost.<\/p>\n

In this case:<\/p>\n