Rough ranges
These are planning numbers only. Costs depend heavily on soil, system type, house size and site access.
| Project | Rough range |
|---|---|
| New conventional system (tank + field) | about $8,000–$18,000 |
| Advanced treatment system | about $15,000–$35,000+ |
| Septic tank replacement | about $3,500–$9,000 |
| Leach field replacement | about $6,000–$15,000 |
| Risers and lids added | a few hundred to about $1,500 |
What changes the price
- Soil — determines field size and system type
- Rock and caliche — slow excavation
- House size — more bedrooms, bigger system
- Access — remote or tight sites
- Permits and evaluation — required for every system
- Removal of an old tank or field
Comparing quotes
Check that each includes the evaluation, permit, tank size and type, field size and type, risers, filter, inspection, backfill and grading.
Call (505) 886-7941 for a site visit and written quote.
Septic questions
Why such a wide range?
Soil and system type drive cost more than anything. The evaluation narrows it down.
Is the permit included?
We include permitting in our quotes; ask any installer what theirs covers.
Are advanced systems always more expensive?
Up front, yes, and they have ongoing service costs.