How We Approach Your Septic Install or Repair

We’ve streamlined the process so you always know what’s coming next. Here’s how we handle every project:

1. Evaluation & Inspection
We assess your current system, site conditions, soil, and usage. We document any deficiencies and evaluate replacement or repair options.

2. Engineered Design & Permitting
Septic systems require BOH-approved engineered plans. We coordinate with licensed designers, Soil Evaluators and the local Board of Health on your behalf.

3. Clear Proposal & Scheduling
You get transparent pricing, timeline estimates, and a breakdown of what’s included. No surprises.

4. Excavation & Installation
Our crews handle earthwork, component installation, and staging — while protecting your property and minimizing disruption.

5. Final Inspections & Compliance
We coordinate all inspections and ensure your system is installed exactly to plan, so you get your compliance certificate on time.

6. System Handoff & Support
After installation, we review maintenance best practices and provide documentation for future needs or maitenance.

Septic System Installation, Replacement & Repair in Massachusetts

Construction site with large black corrugated pipes, an orange excavator, and green lawn in the background. Fall trees with orange and yellow leaves under a blue sky.

From site evaluation and engineered design to excavation, permitting, and final compliance, we deliver septic systems built for durability, performance, and long-term reliability.

Septic System Design, Repair & Installation — Done Right the First Time

We Serve:

  • Homeowners (new & existing)

  • Realtors / Home sellers

  • Buyers needing system upgrades

  • Commercial properties

  • Developers & landowners

  • Condo associations & shared systems

Local Boards of Health We Work With

  • Hanover

  • Pembroke

  • Marshfield

  • Norwell

  • Plymouth

  • Bridgewater

  • Barnstable

    We understand town-by-town septic nuances, which means fewer surprises, smoother permitting, and faster compliance.

Why Choose Amex Construction

  • Certified Installation of Innovative/Alternative (I/A) Septic Systems: Our Team is Trained in I/A systems & stays up to date on industry advances

  • Start-to-Finish Collaboration: From the very first soil evaluation and perc test, we work directly with licensed soil evaluators, septic designers, and local boards of health to make sure your system is designed, permitted, and installed the right way.

  • By-the-Book Precision: Every installation follows the engineered plan exactly—no shortcuts, no guesswork. Compliance is guaranteed.

  • Local Expertise: We’ve built systems across Massachusetts. We know each town’s requirements and quirks, which means fewer delays and no surprises.

  • One-Stop Service: We partner with trusted plumbers and electricians so that we can take care of the entire process—including any necessary work inside your home or business. One call, one team, complete peace of mind.

  • Septic to Sewer Conversions: From Title 5 abandonment to Connecting to the Municipal sewer & Specialty pumps like Environmental One - All terrain sewer

  • Full Service, Start to Finish: Testing, design coordination, excavation, installation, inspections—we handle it all so you can focus on selling, buying, or just living in your home without stress.

Septic System Installation

Installing a new septic system requires more than excavation — it demands careful planning, engineered design, and strict adherence to Massachusetts Title 5 regulations.

At Amex Construction, we manage the full installation process from site evaluation and soil testing to permitting, excavation, and final inspection. Every system we install is designed to meet local health department requirements while delivering long-term durability and performance.

Our installation services include:

• Site evaluation and system layout
• Coordination with engineers and health departments
• Title 5–compliant system design implementation
• Tank and leach field installation
• Innovative/Alternative (I/A) system installs
• Final grading and site restoration

We focus on building septic systems that perform efficiently, protect groundwater, and stand up to New England conditions.

Septic System Repair Services in Massachusetts

Septic issues rarely fix themselves — and waiting often makes them worse.

If you’re experiencing slow drains, pooling water, odors, or system alarms, our team can diagnose the issue and determine whether repair or partial replacement is the right solution.

Septic Repairs We commonly handle:

  • Tank Riser Install

  • Effluent filter Installation & Replacement

  • Pipe and distribution box repair & replacement

  • Pump system repairs

  • I/A system component servicing

  • Title 5 compliance corrections

Our goal is straightforward: restore system performance while minimizing disruption to your property.

Septic System Replacement & Upgrades in Massachusetts

When a septic system fails a Title 5 inspection or reaches the end of its service life, full replacement may be required.

We guide homeowners through the replacement process with clear communication and structured planning. From coordinating engineered redesign and permitting to excavation and final approval, we manage each step to ensure compliance and long-term reliability.

Replacement services include:

• Removal and abandonment of failed systems
• coordinate Engineered system redesign
• Upgrade to Innovative/Alternative (I/A) systems
• Site regrading and restoration
• Coordination with local boards of health

A properly installed replacement system not only restores functionality — it protects property value and ensures regulatory compliance for years to come.

Innovative & Alternative (I/A) systems Installation & services in Massachusetts

Construction site with workers installing underground piping, with several black pipes laid on sand and construction machinery in the background.

Common Types of I/A Systems

  • Bottomless Sand Filters

  • Recirculating Sand Filters

  • Textile filters

  • Orenco Advantex Wastewater Treatment systems

  • Presby Environmental Advanced Enviro-Septic®

  • Aerobic treatment units (ATUs)

  • Nitrogen-reducing bioreactors

Comprehensive I/A System Services

  • Preconstruction Site evaluation and system design coordination

  • Permitting and coordination with local Boards of Health

  • Installation and construction

  • Ongoing operation & maintenance agreements

  • Monitoring and reporting (as required by Title 5)

What Are I/A Systems?

Innovative/Alternative (I/A) systems are advanced septic technologies designed to treat wastewater more effectively than traditional systems. They are often required in environmentally sensitive areas or when standard Title V systems aren’t feasible due to soil conditions, high groundwater, or small lot sizes.

Why Choose an I/A System?

  • Environmental protection: Better nitrogen and phosphorus removal to protect water resources.

  • Flexibility: Can be designed to fit challenging sites where traditional leach fields won’t work.

  • Regulatory compliance: Approved by the Massachusetts Department of Environmental Protection (MassDEP) for use under Title V.

  • Long-term value: Reduces the risk of system failure and costly environmental impacts.

Why Amex Construction?

At Amex Construction, we bring decades of Title V and septic system expertise to projects that demand advanced solutions. Whether your property requires an I/A system to meet local regulations or you’re proactively investing in environmental stewardship, our team has the experience to get it done right.

Construction site with dirt, rocks, and green trees. Two yellow CAT excavators working and two people standing on the right, one holding a shovel.

Septic to Sewer Conversion Services in Massachusetts

Switching from a septic system to a town sewer connection can feel overwhelming. Homeowners often worry about what it means for their property, how long it will take, and what it might cost. At Amex Construction, we specialize in making this transition smooth, stress-free, and built to last.

Our team works directly with local towns and utility departments, handling permits, approvals, and inspections so you don’t have to juggle the paperwork. We take care of every step—from disconnecting your old system to connecting your home to the municipal sewer line—while keeping your yard and property protected as much as possible.

For many homeowners, this upgrade brings long-term peace of mind. No more septic pumping schedules, no surprise system failures, and no uncertainty when it comes time to sell your home. Connecting to the sewer means reliability, lower maintenance, and higher property value.

If you’re facing a failing septic system or just want to explore your options, we’re here to guide you through it with honesty, clarity, and dependable workmanship. We’ve helped local families make the switch—and we’ll be right there with you too.

What Massachusetts Homeowners Need to Know about Septic systems

A septic system isn’t complicated, but it does require care. A properly maintained system can last decades, while a neglected one can fail early and cost tens of thousands of dollars to replace. Title 5 isn’t just a regulation—it’s also a guide for how to keep your system working for you.

Key points:

  • Inspections: Stay ahead of problems with annual or Bi-annual  system checks, not just when you sell your home.

  • Regular pumping: Every 3-5 years is recommended by Mass Dep & U.S EPA; Some System permits have specific pumping schedules.

  • Water use: Septic systems can only handle so much at once. Spread out laundry loads and fix leaky toilets or faucets to avoid overloading.

  • What goes down the drain matters: Avoid FOG or Fats Oils & Grease. Also avoid flushing non septic safe toilet paper, wipes, or harsh chemicals. They can clog or kill the bacteria your system needs to function.

  • Protect your drain field: Don’t Park vehicles, build decks, or plant trees with invasive roots over your leaching area.

Common Questions About Septic Installation & Repair in Massachusetts

How do I know if my septic system needs to be repaired or replaced?

It depends on the type and extent of the problem. Localized issues—such as broken pipes, failed pumps, or distribution box problems—can sometimes be repaired. Widespread drain field failure, structural tank issues, or systems that no longer meet Title V requirements usually require full replacement. A proper evaluation is the only way to know for sure.

Does a failed Title 5 inspection always mean I need a new system?

No. A failed Title V inspection does not automatically mean full replacement. Some systems qualify for repairs or conditional approvals depending on the failure criteria, site conditions, and Board of Health requirements. We explain your options clearly and recommend the least disruptive, code-compliant solution.

Do I need an engineer or septic designer?

Yes. Most septic installations and many major repairs require engineered plans prepared by a licensed septic designer and approved by the local Board of Health. We coordinate directly with soil evaluators, designers, and town officials so the process moves efficiently.

How long does a septic installation or replacement take?

The on-site construction phase typically takes 1–5 days for most residential systems, depending on soil conditions, access, system type, and weather.
The full project timeline—including design, permitting, and Board of Health approvals—can range from a few weeks to several months, depending on the town and complexity.

Will my yard be destroyed during installation?

No. Septic installation is disruptive by nature, but we take steps to minimize disturbance and restore the site. Final grading, loam, and seed are included where applicable. We’ll explain exactly what areas will be affected before work begins.

Can you install Innovative / Alternative (I/A) septic systems?

Yes. We install and repair Innovative / Alternative (I/A) systems, which are often required in environmentally sensitive areas, high groundwater conditions, or small lots. These systems involve additional components and long-term maintenance requirements, which we explain clearly upfront.

Do you handle permits and Board of Health coordination?

Yes. We manage the process from start to finish — including coordination with soil evaluators, septic designers, and the local Board of Health. We know that each town has its own expectations and inspection procedures, and we account for that in scheduling and planning.

How long do permits and Board of Health approvals usually take?

Permitting and BOH approval timelines vary by town. Some Boards of Health can permit in 2–4 weeks once plans are submitted, while others can take longer based on meeting schedules and workload. We work closely with your designer and BOH to streamline this process and get you scheduled as efficiently as possible.

What affects the cost of a septic repair or installation?

Cost depends on several factors, including:

  • Soil conditions and groundwater depth

  • System size and type

  • Site access and excavation constraints

  • Local Board of Health requirements

  • Whether an I/A system is required

  • Wetland or environmental constraints

We provide clear estimates once the site and design requirements are known.

What price range should I expect for a new septic system or major repair?

While every property is different, most full septic system replacements fall in the $15,000-$50,000+ range in Southeastern Massachusetts, depending on soil conditions, system size/type, access, wetland constraints, and local BOH requirements. Repairs often cost significantly less — but we provide written estimates after evaluation.

Can I live in my home while the septic system is being replaced?

In most cases, yes. We plan installations to minimize downtime, but there may be short periods where water use is restricted. We’ll communicate expectations clearly before work begins.

Do you work on commercial or multifamily septic systems?

Yes. We install and repair septic systems for multifamily properties, commercial buildings, and shared systems, including projects with higher design flows and additional regulatory oversight.

What happens after the system is installed?

After installation, we coordinate all required inspections and Board of Health sign-offs. Once approved, you receive documentation confirming compliance. We also review maintenance and pumping recommendations so you can protect your investment long-term.

Can a poorly installed system pass inspection but still fail later?

Yes — and it happens more often than people realize. Systems installed without proper attention to soil conditions, drainage, or long-term hydraulics can pass initial inspections and fail years later. Our focus is on building systems that perform long after sign-off, not just ones that get approved.

Do you offer warranties or maintenance agreements?

Yes. We provide guidance on system warranties where available and can discuss long-term maintenance plans — especially for systems with mechanical components like pumps or I/A systems.

Will the Board of Health inspect once installation is complete?

Yes — most towns require a final BOH inspection after installation and before issuing a Certificate of Compliance. We coordinate the inspection, ensure your system is installed per approved plan, and handle any follow-ups if needed

When is the best time to contact you for septic installation or repair?

Ideally before you list your home, start major renovations, or experience system symptoms. Early evaluation prevents last-minute delays and often reduces cost by avoiding emergency repairs.

Why choose Amex Construction for septic installation or repair?

We combine inspection knowledge, construction experience, and regulatory understanding under one roof. That means fewer surprises, realistic timelines, and systems built to pass inspection and perform as intended — not just meet minimum requirements.

Septic System Don’ts

Your septic system is tough but not indestructible. The fastest way to shorten its life (and your wallet) is by treating it like a garbage can or a parking lot. Here’s what not to do:

  • Don’t flush non-biodegradable items: Wipes (even “flushable”), paper towels, feminine products, diapers, and dental floss all clog and damage the system.

  • Don’t pour grease, fats, or oils down the drain: They harden in pipes and overwhelm the tank.

  • Don’t use harsh chemicals: Bleach, drain cleaners, and antibacterial products kill the beneficial bacteria your septic system needs to work.

  • Don’t overload with water: Avoid running multiple long showers and laundry loads back-to-back. Sudden surges can push solids into the drain field.

  • Don’t drive or park on the leach field: Vehicle weight compacts the soil and crushes pipes.

  • Don’t plant trees or shrubs with aggressive roots nearby: Roots invade and block leach lines. Stick to grass.

  • Don’t ignore warning signs: Slow drains, sewage odors, or standing water near your system are all red flags—get them checked fast.

Why Septic Systems Need Repair

  • Age & wear

  • Hydraulic overload (too much water too fast)

  • Soil absorption failure

  • Root intrusion & compaction

  • Improper siting or outdated design

  • Heavy use after renovation/additions

  • Component failure (pumps, tanks, distribution boxes)

Common Septic Components

  • Septic Tank

    The first stop for everything that goes down your drains.

    Purpose: Separates solids from liquids. Solids settle to the bottom as sludge, oils and grease float to the top as scum, and the liquid wastewater sits in the middle.

    Why it matters: If the tank isn’t pumped every few years, solids can overflow into the next stage and cause costly failures.

  • Risers & Covers

    What they are: Access lids installed above the septic tank, bringing the tank opening up to ground level.

    Why they help: Without risers, pumping requires digging up your yard every time. Riser covers make inspections and pumping quick, clean, and inexpensive.

  • Effluent Filters

    What they are: Screens placed at the tank’s outlet where wastewater exits into the next stage.

    Why they help: They trap fine solids and prevent them from entering and clogging the leach field. They need to be cleaned periodically, usually during pumping service.on goes here

  • Distribution Box

    A small concrete chamber between the tank and the drain field.

    Purpose: Evenly distributes wastewater into the leach field pipes.

    Why it matters: If it shifts or clogs, one section of your drain field can get overloaded and fail.

  • Leaching Field / S.A.S or Drain Field

    A network of perforated pipes buried in gravel-filled trenches.

    Purpose: Allows pre-treated wastewater to slowly filter through the soil, which acts as the final treatment.

    Why it matters: Healthy soil is essential for removing harmful bacteria, viruses, and nutrients before water re-enters the groundwater.

  • Vents

    What they are: Vents are the above-ground outlets—like mushroom caps, charcoal filters, or candy cane-shaped PVC—that allow gases from the septic system to safely escape. Some include filters to cut down on odors, while others are designed to blend into the landscape or stand up to weather.

    Why they matter: A vent keeps your system breathing. By releasing gases and equalizing air pressure, it helps wastewater flow smoothly and prevents dangerous buildup underground. Proper venting also reduces odor issues around your property and protects the system from strain that can lead to costly repairs.

  • Pump Chambers

    What they are: Special tanks with pumps that move wastewater uphill when gravity alone won’t do the job.

    Why they help: They allow septic systems to be installed on challenging lots where the drain field is higher than the house or tank. Most come with alarms to alert homeowners if there’s a pump failure

  • Soils, Sands & Stones

    The unsung hero of your septic system.

    Purpose: Acts as the natural filter that finishes the cleaning process.

    Why it matters: Compacted or saturated soil can’t properly treat wastewater, leading to backups or contamination.

  • Pump Controllers

    What they are: Electronic panels that monitor and manage system components like pumps, aerators, and timers.

    Why they matter: In advanced or pump-driven systems, controllers regulate when wastewater is moved, ensuring the system isn’t overloaded all at once. They can also record usage data and help troubleshoot issues.

  • Septic Alarm

    What they are: Alerts (audible, visual, or both) connected to the system that warn you if water levels rise too high, if a pump fails, or if the controller detects a malfunction.

    Why they matter: An alarm gives you a heads-up before a serious problem like a backup or overflow occurs. Catching issues early means faster, less expensive fixes.