How Much Do Septic Services Cost in Denver, CO? (2026 Guide)
Septic Service Costs in Denver, CO (2026)
Denver's Front Range communities and mountain foothills rely extensively on private septic systems. From Jefferson County neighborhoods to Elbert County ranchettes and mountain communities in Clear Creek and Park Counties, proper septic maintenance is essential and often more expensive than at lower elevations.
Denver-Area Septic Quick Costs (2026)
- Pumping: $310 - $590
- New system: $5,000 - $15,000
- Drain field repair: $3,000 - $10,000
Septic Pumping Costs in Denver
- 1,000-gallon tank: $300 - $515
- 1,500-gallon tank: $410 - $565
- 2,000+ gallon tank: $510 - $665
- Emergency service: $580 - $1,055
- Mountain/remote access surcharge: Add $100 - $300
Denver's altitude (5,280+ feet) can slow bacterial activity in the tank slightly. Some homeowners use enzyme additives for systems above 7,000 feet. Pump every 3-5 years.
Septic Installation Costs in Denver Area
Rocky soils and bedrock can make excavation extremely expensive in foothills communities:
| System Type | Cost Range |
|---|---|
| Conventional gravity system | $5,000 - $10,000 |
| Mound system | $8,000 - $16,000 |
| Drip irrigation system | $9,000 - $18,000 |
| Evapotranspiration (ET) system | $10,000 - $20,000 |
Rock blasting in Jefferson or Clear Creek foothills can add $3,000-$8,000. CDPHE registration and county permits add $500-$1,200.
Septic Repair Costs in Denver Area
- Drain field repair: $3,000 - $10,000
- Pump replacement: $800 - $2,200
- Tank riser or lid: $350 - $800
- Frozen pipe emergency repair: $500 - $2,000
Denver-Area Regulations
Colorado CDPHE Regulation 43 governs on-site wastewater systems, with county health departments handling permits. A permit is required for all new installations and repairs. A Colorado OWTS Installer License is required. A soil and site evaluation by a licensed engineer or soil scientist is required. A 50-foot setback from potable wells and streams applies. An operating permit is required in some counties.
Tips for Hiring in Denver
- Plan for rocky excavation — always get quotes that explicitly address potential rock removal costs
- Winterize aggressively — Denver temps can reach -20 degrees F; insulate all exposed septic components
- Altitude considerations — ask about enzyme treatments for systems above 7,000 feet
- Verify CDPHE licensing — check the CDPHE contractor database before signing any contract
Browse licensed Denver-area septic companies serving Aurora, Littleton, Castle Rock, Evergreen, and surrounding Front Range communities.