A Homeowner’s Guide to Replacing Your Title V Septic System
If your septic system has failed its Title V inspection — or you're buying or selling a home that needs one replaced — you're probably wondering what comes next.
At Amex Construction, we’ve replaced hundreds of septic systems across Plymouth, Barnstable, and surrounding towns, and we know the process inside and out. Here’s a homeowner-friendly breakdown of what to expect when it’s time to replace your system.
Step 1: Confirm the Need for Replacement
A Title V inspection is required when selling a home, changing its use, or after a system failure. If your inspector determines that your system is non-compliant, a full replacement may be necessary — especially in areas near wetlands, drinking water zones, or with high groundwater.
✅ Tip: Don’t panic — many towns allow up to 2 years to replace a failed system, and financing options are available.
Step 2: Hire the Right Professionals
You’ll need:
A Mass-licensed system inspector (already done, if you had a Title V test)
A local engineer to design the new septic plan
A licensed and experienced contractor (that’s us!) to excavate, install, and manage the process
We work directly with engineers and boards of health to ensure your replacement is code-compliant, environmentally sound, and cost-effective.
Step 3: Septic System Design & Permitting
The design phase includes:
A perc test (percolation test)
A soil evaluation
Septic system layout, size, and location
In environmentally sensitive areas like Cape Cod and the South Shore, you may also need:
Conservation Commission review
DEP variances or nitrogen-reducing technology (IA systems)
Once approved, the engineer submits the design to the local Board of Health for permitting.
Step 4: Septic System Excavation & Installation
Amex Construction handles everything from excavation to final grading:
System excavation — remove the old tank and dig for the new system
Installation — set tank, D-box, leaching field, pumps (if needed)
Tie-ins — connect plumbing, venting, and electrical (for IA or pump systems)
Inspection — local officials inspect before backfilling
Backfill & finish grading — ready for seed, loam, or landscaping
💧 If you’re in a tight lot or high-water table area, we’re certified to install advanced systems like Presby / Infiltrator and IA technology.
How Long Does It Take?
Design & permitting: 2–6 weeks (varies by town)
Excavation & install: 2–5 days (weather-dependent)
Final inspection to backfill: 1–2 days after install
What Does It Cost?
Septic replacement costs depend on:
Soil and groundwater conditions
Size and type of system
Site access and excavation needs
Town requirements (IA, nitrogen-reducing tech)
💡 Most homeowners in Southeastern MA spend $20,000–$45,000 for a full Title V system replacement. We provide honest, detailed estimates — no surprises.
Why Choose Amex Construction?
We’re fully licensed, insured, and Title V certified — and we don’t cut corners. We also:
Coordinate directly with your engineer and town
Handle all inspections and site prep
Leave your property clean and leveled for landscaping
Are certified E/One grinder pump installers (for sewer conversions and IA systems)
Let’s Take the Stress Out of Septic
If you’ve been told your system needs to be replaced — or you're buying a home with a failed Title V — we’re here to help. We'll walk you through every step and get it done right the first time.
Contact Amex Construction today at (781) 243-5654
