Search thousands of topics on CostHelper.com

BROWSE ALL TOPICS >> appliances babies & children  cars  consumer electronics health & personal care home & garden personal finance  pets  schools small business weddings
CostHelper > Home and Garden  > Plumbing & Waterproofing > Septic System

Septic System Cost


How Much Does a Septic System Cost?

 
average costMedium: Averages $2,000-$5,000; Runs $4,000-$12,000 in Higher Cost Areashigh costEnhanced System: $10,000-$20,000+
post E-mail post Post   Comments (17)

For homes that aren't connected to a municipal sewer plant, a septic is an on-site system that collects, treats and disposes of household wastewater by slowly filtering it through underground soil. Typically there are two main parts, a septic tank and a soil absorption system (also called a drainfield, leachfield or disposal field). These are located underground and connected to the house by sewage pipes.

Typical costs:

  • Installing/replacing a conventional septic system[1] (including the tank) averages $2,000-$5,000 in the Midwest, but can be $4,000-$12,000 or more in areas where materials and labor rates are higher.
  • Enhanced, engineered or alternative septic systems that use mounds[2] , sand/peat filters[3] , aerobic systems and/or constructed wetlands[4] can cost $10,000-$20,000 or more, according to the Rhode Island Regional Water Quality Program[5] .
  • These alternative septic systems work better than the conventional approach for sites with high groundwater or slowly/rapidly percolating soil, or near drinking water supplies, wetlands, coastal ponds or other water resources.
  • The cost of a septic tank alone runs about $500-$1,800 depending on size (ranging from 300-1,000 gallons) and type. Piping and other needed items adds another $100-$200 to the total cost of materials.
  • New Mexico State University provides an introduction to installing a septic tank[6] . However, many regions require a septic system to be designed and installed by trained and licensed professionals; contact your local or state sanitation department for details.
What should be included:
  • Septic systems are used when sewage treatment plants are not accessible, which usually means rural or suburban homes on large lots. The septic tanks itself is a large, underground, watertight container made of concrete, fiberglass or plastic (polyethylene).
  • The North Carolina State University Ag Extension explains how septic systems work and where they can be used[7] .
  • It can take several days to a week or more to install/replace a septic system. The process involves extensive digging, often with heavy earth-moving equipment.
Additional costs:
  • Most counties and states require a building permit for installing or replacing a septic system, at a cost of $250-$1,000 or more depending on the location and the complexity of the project. Check with your local building/planning department for details.
  • Installing a septic system usually involves extensive digging and damage to the landscaping; replacement turf and other plantings can run $100-$1,000 or more.
Discounts:
  • In a cluster septic system, each house has its own underground septic tank but they all feed into one drainfield/leachfield/soil absorption system. Typically installed by developers, a cluster septic system splits the cost of the drainfield installation and maintenance among many houses.
Shopping for a septic system:
  • Check with your local sanitation department to see if they maintain a list of licensed septic installation contractors.
  • Referrals to septic contractors[8] are available through the National Onsite Wastewater Recycling Association.
  • Ask about training and experience. Check that the company is properly bonded, insured and licensed in your state[9] ; and see if there are any complaints with the Better Business Bureau[10] .
post E-mail post Post   Comments (17)
CostHelper News


7 Lesser-Known Discounts for the 50+ Crowd
As they age, members of the Baby Boomer generation don't like to admit that they're senior citizens, but they love getting discounts. It's kind of a quandary, because some of the best deals available are reduced prices for older folks. || Posted October 21 2013


Our Top 10 Favorite Secret Menu Items
Don't believe everything you read. Those menus posted at your favorite fast food spot or coffee stand are not the be all and end all of their offerings. || Posted October 25 2013

‣ All CostHelper Blog Posts


What People Are Paying - Recent Comments
leach field treatment
Amount: $1,150.00
Posted by: Susana in cumming, GA.Posted: August 24th, 2015 04:08PM
Type: treating the leach field
I had a septic company come to do a septic tank pump for $150 but they said I needed a more expensive leach field treatment at a cost of over $2500 even thought there is no back up or smell anywhere. They wind up doing an enxyme one leaving me with 6 gallons of liquid enzyme I am suppose to pour down the toiled once a month. My son says I was ripped off. Is he right?
Was this post helpful to you?   yes     no Report prohibited or spam
Septic estimates.
Amount: $5,000.00
Posted by: Daytrp in Eldersburg, MD.Posted: July 17th, 2015 08:07PM
Type: Repair - new construction
Repair permit: $130-450 depending on county.
New construction permits: $250-550.
New septic $16-22k for advanced treatment, $8-10k conventional
Perc test for repair: $850-$1,400 takes 2-6 hours. Done with county sanatarian onsite.
A common septic repair: (installation of 2 - 60' long x 3' wide x 8' deep with 4' of stone below pipe invert) runs about $6,500.Trench dimensions are determined by number of bedrooms (occupancy) and percolation rates from perc test. price varies depending on Trench size. Bigger means more.
Septic tank add $2,500-3,500
Pump chamber, pump and controls add $4,000-5,000.
Advanced treatment unit add $10k- $13k to price of permit and trenches.
Some states Have programs to help upgrade your septic tank. Check with your county health department.
I bid these jobs and this is my basic start point. Specailty jobs, difficulty of access, heavy rock, all add to the bid price
Was this post helpful to you?   yes     no Report prohibited or spam
Septic System Installation
Amount: $15,650.00
Posted by: ABMCCAA in Bakersfield, CA.Posted: June 26th, 2015 05:06PM
New 1500 Gallon Tank, Engineering, 60' of Leach Field with Rock base drainage system. 50 ton of 3/4" rock, new 4" main line to house, soils testing and permits. Took 3 days total.
Was this post helpful to you?   yes     no Report prohibited or spam
grandmother taken advantage of with ultra high price?
Amount: $10.00
Posted by: andrewbasil in hemet, CA.Posted: March 23rd, 2015 06:03AM
Type: simple leach line replacement
75 feet of leach line were dug up and replaced the. attached up to original fifteen hundred gallon 1973 concrete septic tank and re buried .. they had to knock down two fruit trees and by accident sheared off a water tap. (Having not repaired the water line it has now become a 5 foot stream shooting straight up in air.)
I do feel grandmother was taken advantage and charged double of not more for services that ... and this is the worst part ... a permit nor independent inspection was never done for this job. And even though these men work for a major plumbing company they insisted on cash only.
Is this right? Help me out here what do I do? This was 3 days ago.
Was this post helpful to you?   yes     no Report prohibited or spam
septic install and repair
Amount: $25.00
Posted by: ltodd kinsey in cda, ID.Posted: February 26th, 2015 11:02PM
Type: all
If properly maintained a working system should never need pumped
Was this post helpful to you?   yes     no Report prohibited or spam
SEPTIC SYSTEM REPLACEMENT
Amount: $0.00
Posted by: M. IRIARTE in STROUDSBUR, PA.Posted: February 4th, 2015 05:02AM
Type: SEPTIC
ANYONE IN THE POCONOS HAS HAD THEIR SEPTIC SYSTEM REPLACE. WHAT WAS THE COST OF REPLACEMENT.
WOULD LIKE TO GET FEEDBACK
Was this post helpful to you?   yes     no Report prohibited or spam
Lift Pump
Amount: $2,700.00
Posted by: Lift pump last minute $2700 addition in Sarasota, FL.Posted: February 3rd, 2015 09:02AM
Type: septic
we needed a new drain field as slow draining. county said we need a lift pump as due to high water table septic tank is not low enough. We already spent 5000 on drain field. Is this too much? We are in Florida
Was this post helpful to you?   yes     no Report prohibited or spam
Leach Field
Amount: $13,000.00
Posted by: El Jeje in Andover, CT.Posted: January 8th, 2015 07:01PM
Type: Infiltrators
Quick 4 infiltrators, leach field and landscaping only. Tank was recently replaced. For a 4 bedroom home with excellent soil.
Was this post helpful to you?   yes     no Report prohibited or spam
Tank and 250ft Infiltrator leaching system
Amount: $4,500.00
Posted by: a user in Dalton, GA.Posted: September 18th, 2013 06:09PM
Type: concrete
GA- for a 3bdrm house. By North Georgia Backhoe. Took about 6hrs
Was this post helpful to you?   yes     no Report prohibited or spam
just price a new system 3 bedrooms
Amount: $2,800.00
Posted by: no name in harrison, MI.Posted: April 22nd, 2013 05:04PM
Type: convertional system
That was the cost for everything
Was this post helpful to you?   yes     no Report prohibited or spam
New cement 61 by 103 lid, new mortar at outlet
Amount: $1,300.00
Posted by: a user in NorthPort, FL.Posted: April 11th, 2013 09:04AM
Type: Lid
Seems we had gasses that formed a hole, maybe 10 inch wide, 6-10 feet deep. They replaced the cement lid 61 by103 inches. 3 men, trucks and a backhoe. Also ne mortar around the outlet. Total cost $1,300. Too much? Took about 2 hours. I think they did a great job. We will see! Tank is 24 years old. The load lid,2 inch thick concrete, the new one is 3 inch.
Was this post helpful to you?   yes     no Report prohibited or spam
lambchops,,,question
Amount: $0.00
Posted by: rm in goldsboro, NC.Posted: February 26th, 2013 04:02AM
Type: lift system
Lambchops,,,I am in goldsboro also and may need a lift system. can you shoot me an email at rmaccuswellatyahoo.com have some questions for you
Was this post helpful to you?   yes     no Report prohibited or spam
Hoot 600 System
Amount: $41,000.00
Posted by: lje33437 in Princeton, NJ.Posted: February 15th, 2013 05:02AM
Type: Pump/Drip System
Got a perk, that was the good news. Had to put in expensive Hoot 600 for a 5 bedroom house. 1,500 gallon tank, Hoot 600 and field with mound because of the soil conditions. Lots of shale in area.
Was this post helpful to you?   yes     no Report prohibited or spam
Septic system with lift pump and leach field
Amount: $4,500.00
Posted by: Lambchops in Goldsboro, NC.Posted: September 7th, 2012 07:09AM
Type: Lift System
I just got out the Air Force and Sub Contracted my own home, I had to have a lift site for my septic tank, or put in the mound system, Well I couldn't see this hump of dirt in my yard so I chose the lift site which was a 1000ft away. I know that sounds a long way away but 2 inch pipe is really not that expensive bottom line I did a little research and got a few estimates which in 2000 was really high. there were 3 bids for over $6500.00 And one for $4800, but I did my landscaping and septic system for $4500. Not bad for a guy just using good ole common sense and you can too.
Was this post helpful to you?   yes     no Report prohibited or spam
Septic system with lift pump and leach field
Amount: $12,000.00
Posted by: Will Marcinko in McHenry, IL.Posted: August 30th, 2011 09:08AM
Engineering survey, ground feasability survey plus permits. We had a 1000 gallon septic tank, 750 gallon lift tank, 233 feet of trench line, 240 feet of leach pipe and a Hydromatic SW33M1 effluent pump installed. He also reseeded and landscaped the damages done by the excavating.
My question is, "Did we spend too much?"
Was this post helpful to you?   yes     no Report prohibited or spam
Septic Mound System
Amount: $22,892.00
Posted by: bobswife in Egg Harbor Twp, NJ.Posted: July 30th, 2010 05:07AM
Type: Mound System
Extreme flooding forced new system after old leach system failed. Installed new 44.5 by 18.5, 12.5 deep, engineered designed mound system, added additional 1000 gallon tank with pump to mound system. Installed automatic tank alarm. Approx 12 trees were removed in process.
Was this post helpful to you?   yes     no Report prohibited or spam
Repair
Amount: $7.70
Posted by: Gail1 in Pennington, NJ.Posted: February 11th, 2010 05:02AM
Type: Tank
We had slow drainage. The company came out on a Thursday and tried to clear the clog. Afterwards, didn't hear the proper flow into the tank. Friday, brought camera and said pipes were old and damaged by roots, etc. Brought in small backhoe. Dug up pipe to tank, jackhammered a 12 foot section of our bedroom leading to bathroom, replaced pipe for use. (Sat. and Sun. off) Monday, came to fill trench with some gravel and filled dirt back into trench. Put some gravel in small section in our bedroom, poured concrete at connecting point. My husband poured the finishing concrete in our bedroom. This seems excessive in price to me. They said our drain field may need some attention (leading from tank, but that's not their job).
Was this post helpful to you?   yes     no Report prohibited or spam


 

Comment On Your Experience With a Septic System
 
Subject:  *
Amount Spent:  *
Type:   
Comments: 
Purchased:  Year: 
City:  * State:  *
 
Information about you:
Email:  * Email addresses are not displayed.
Name:  This is the name we'll display with your post.
me on this computer
*=required field.
 



External Resources:
  1.  twri.tamu.edu/reports/1999/l5234.pdf
  2.  ohioline.osu.edu/aex-fact/0744.html
  3.  www.extension.umn.edu/distribution/naturalresources/DD7570.html
  4.  www.extension.umn.edu/distribution/naturalresources/DD7671.html
  5.  www.uri.edu/ce/wq/OWT/Factsheets/FAQ.pdf
  6.  www.youtube.com/watch?v=bL0_UDGW-Ho
  7.  www.soil.ncsu.edu/publications/Soilfacts/AG-439-13/
  8.  www.nowra.org/
  9.  www.contractors-license.org/
  10.  search.bbb.org/
More Home and Garden Topics
Check Out All Costs for Home and Garden How Much Does a Kitchen Remodeling Cost? How Much Does a Propane Tank Cost? How Much Does a Plumber Cost?

Search Thousands of Topics on CostHelper.com

 


Today's Featured Cost Articles

About CostHelper
CostHelper is based in Silicon Valley and provides consumers with unbiased price information about thousands of goods and services. Our writers are experienced journalists who adhere to our strict editorial ethics policy.

CostHelper Community
Angiogram of heart
Paid: 55150.00
Had this procedure done to check heart due to abnormal stress test. Did not need any stents or any other procedure as everything was negative... [more]
-Pamela Garrett
Angiogram Cost
HELP: asbestos in furance - many questions
Paid: 0.00
I am renting out my home in Grand Rapids, MI and have received a notice from the city that the home must be inspected... [more]
-Busa
Asbestos Removal Cost
Belly
Paid: 45.00
The clamp was annoying so it took away concentration of the tiny sting of the needle. I had just turned 15 at the the time and I've had it for almost a year and it has healed fast and never given me any trouble... [more]
-Madi
Body Piercings Cost
Duckwork
Paid: 3009.00
Single family home... [more]
-Lfdykes
Ductwork Cost
2 half shafts replaced
Paid: 140.00
Bought the axles myself on ebay for 40 each, then had a mobile mechanic come to my house to do the work. It is not a hard job, but has a couple tricky parts for a subaru. Easier for a honda or toyota... [more]
-Subbie Giy
Replacing a CV Boot Cost
Even with insurance looking at going broke
Paid: 55000.00
Recently on a camping vacation my 11 year old became very sick. Took him to the closest hospital. Found out he is type 1 diabetic. Was very sick and had to be flown from Rock Springs WY, to Salt Lake City, UT. 185 mile on the ground... [more]
-Broke and confused.
Air Ambulance Cost