SEPTIC INSTALLATION
Septic System Installation in Connecticut - Done Right
Licensed #005442
Insured
25+ Years Experience
5-Star Rated

Hablamos Español
Discuss Your Installation

For an immediate response, call (203) 942-2100

Hablamos Español
Fast response • No obligation
Trusted by homeowners across Connecticut
5-Star Rated
"RPM provided the most professional and timely septic service we've ever had. Their team is knowledgeable, honest, and left our site spotless."
Mark T.
Homeowner — Danbury, CT
Full Septic System Installation Across Connecticut
A septic installation is not a project where you want to cut corners or hand it to someone who will not be around when something comes up. RPM Septic has been installing systems across Fairfield, Litchfield, and New Haven counties since 1999. Ralph Merlo is on every job.
We handle the full project: site assessment, permitting coordination with your town’s health department, excavation, system installation, and site restoration. One company, start to finish. No subcontracting the pieces that matter.
If you are building on a new lot, replacing a failed system, or converting from a different waste system, we assess the site and give you a clear picture of what is involved and what it will cost before any work begins.

Technical Precision
Deep-trench excavation and gravel-bed preparation for long term hydraulic stability.
Core Competencies
Septic Systems We Install
CONVENTIONAL GRAVITY SYSTEMS
The standard residential septic system: tank, distribution box, and drain field. Effluent flows from the tank to the field by gravity. Well-suited for lots with adequate soil perc rates and proper setbacks. Low maintenance, long-lasting when correctly sized and installed.
Common Applications
Wet Basements • Soggy Yards
ALTERNATIVE AND ENGINEERED SYSTEMS
Some lots in Fairfield County do not support a conventional gravity system - the soil perc rate is too slow, the lot is too small, or setback requirements limit placement options. We assess the site and identify what system type is permitted and appropriate. Options vary based on soil test results and local health department requirements.
Common Applications
Driveway Pooling • Gutter Runoff
RESIDENTIAL AND COMMERCIAL
RPM handles both residential and commercial septic installations. The system type, size, and permitting process differ, but the standard is the same. Ralph oversees every installation regardless of project size.
Common Applications
Septic Protection • Yard Saturation
Understanding Water Dynamics
Why Installation Quality Determines System Longevity
A septic installation is a significant project. Understanding what goes into it helps you evaluate what you are being quoted and why certain decisions matter.
Why Proper Installation Matters
A septic system that is installed correctly and maintained regularly should last 25 to 30 years or more. A system that is improperly sized, poorly sited, or installed with shortcuts can fail in a fraction of that time.
How Soil Testing Affects System Design
Soil conditions in Connecticut vary significantly across Fairfield County. The perc rate – how quickly water moves through the soil – determines what type of system is appropriate and how large the drain field needs to be. An undersized or incorrectly sited field will struggle from the beginning. Getting the site assessment right is the most important part of the installation.
Understanding Septic Permits and Inspections
Permitting is another area where experience matters. Connecticut requires health department permits for new septic installations. The permit process involves soil testing, site plans, and inspections at specific stages of the project. Working with a contractor who knows the local process – and has relationships with the health departments in the towns they serve – saves time and avoids costly mistakes.

Engineering
Integrity
Property Diagnostics
When a New Septic System Is the Right Answer
Building a new home or accessory
Building a new home or accessory dwelling on a lot without existing sewer
Existing system has failed
Existing system has failed and repair is no longer a viable option
System is beyond its useful life
System is beyond its useful life and experiencing repeated problems
Major renovation or addition
Major renovation or addition that increases the household size the system needs to support
If you are not sure whether your situation calls for repair or replacement...
That is exactly the kind of question we answer during an assessment. Call us at (203) 942-2100.
TESTIMONIALS
Trusted by Homeowners
from Ridgefield to Bridgewater, CT
Our reputation is built on honest work, reliability and long-term customer relationships in Danbury and the surrounding areas.
Posted on Google steve luttingerTrustindex verifies that the original source of the review is Google. I had RPM service my septic system. First time I used them. They were great to work with - very communicative and flexible about scheduling service. They did a great job emptying the tank and replacing the filter. Really happy to have found them.Posted on Google Young KohTrustindex verifies that the original source of the review is Google. We had an issue with our septic system overflowing, so I reached out to RPM Septic Systems. They actually called me back first and reminded me they had pumped the tank just six months ago, so it was unlikely to be full again so soon. They suggested they would come and check the filter first, which made a lot of sense. That’s exactly what they did—and once they replaced the damaged filter, the water level went right back down. Not only did that save me the cost of an unnecessary pumping, but it also gave me real peace of mind knowing I can trust them. Really appreciate the help—thank you!Posted on Google ImmaTrustindex verifies that the original source of the review is Google. Very responsive and thorough. I was the listing agent and selling a house in Danbury, they came on time and pumped the very full septic within an hour! Reasonable prices. Thank you Jamie!Posted on Google Richard OthsTrustindex verifies that the original source of the review is Google. Jamie was prompt to return my calls, got the job done within a week and charged a fair price with itemized detail of service.Posted on Google Terence J. HoulihanTrustindex verifies that the original source of the review is Google. Wonderful experience with RPM. They are responsive, knowledgeable, reasonable but most of all, friendly.Posted on Google Donna DurkinTrustindex verifies that the original source of the review is Google. Dependable, knowledgeable. I would recommend Jamie & RPM.Posted on Google Nancy FrehillTrustindex verifies that the original source of the review is Google. Ralph Merlow was extremely knowledgeable about our current septic system which we were concerned about its condition and capacity. He took the time to answer all of questions and called, on the spot, on our behalf, an engineer who he has worked with for decades to help us figure out next steps.Posted on Google Constantine KolitsasTrustindex verifies that the original source of the review is Google. Honest, straightforward, helpful and knowledgeable. Can't ask for a better company!Posted on Google Robert LinnTrustindex verifies that the original source of the review is Google. Jamie was terrific. He was knowledgeable , professional and efficient. The septic tank was cleaned quickly and the lawn fully restored. Their work is very highly recommendedPosted on Google ST WilliamsTrustindex verifies that the original source of the review is Google. Professional, reliable, knowledgeable, reasonable...excellent service!Load more
Property Diagnostics
Real Results: Recent Installation Projects.

Septic Tank Pumping.
Sub-surface water management for residential perimeter.

Septic Tank Cleaning.
Sub-surface water management for residential perimeter.

Septic Pumping.
Sub-surface water management for residential perimeter.

Septic Tank Cleaning.
Sub-surface water management for residential perimeter.

Septic Tank Pumping.
Sub-surface water management for residential perimeter.

Septic Pumping.
Sub-surface water management for residential perimeter.
FAQs
What You Need to Know
Find answers to common questions about septic maintenance, installation, and repair services in Connecticut.
How often should my septic tank be pumped?
Find answers to common questions about septic maintenance,
installation, and repair services in Connecticut.
What are the signs that my septic system is failing?
Find answers to common questions about septic maintenance,
installation, and repair services in Connecticut.
Can I build a deck or patio over my septic field?
Find answers to common questions about septic maintenance,
installation, and repair services in Connecticut.
What happens during a standard septic inspection?
Find answers to common questions about septic maintenance,
installation, and repair services in Connecticut.
Do you offer emergency services on weekends?
Find answers to common questions about septic maintenance,
installation, and repair services in Connecticut.
How long does a typical septic installation take?
Find answers to common questions about septic maintenance,
installation, and repair services in Connecticut.
NEED SEPTIC SERVICES?
Reliable Septic Service,
When You Need it.
We make it easy to book trusted, local septic services. Quick response times and dependable work you can count on.