Septic tank pumping cost by tank size
| Tank size | Installed price | Roughly |
|---|---|---|
| 750 gallon tank | $240–$540 | About two bedrooms |
| 1,000 gallon tank | $310–$700 | About three bedrooms; the most common size |
| 1,250 gallon tank | $375–$890 | About four bedrooms |
| 1,500 gallon tank | $450–$1,075 | About five bedrooms |
| 1,750 gallon tank | $540–$1,240 | Six bedrooms or more |
Angi puts the national average at $428, most people paying $292 to $565, and adds that a 2,000 gallon tank may cost $700 or more. HomeGuide's text says $300 to $700 and its summary says $375 on average. Fixr puts the average at $400. The prices above combine Angi and HomeGuide; the typical for each size sits where those published averages fall within the ranges. HomeAdvisor prints the same figures as Angi, so we count them once. This Old House uses an older Angi size table, and Fixr's matches it, so neither is used for the size prices.
What changes the price
- Tank size. A bigger tank holds more, takes longer to pump and costs more to dispose of.
- How long since the last pumping. A tank that has gone years without it holds more solids and takes more work.
- Access. A buried lid has to be found and dug up, and a long hose run takes more time. A riser brings the access to the surface.
- Extras. An inspection, filter cleaning and a camera check are often sold alongside the pumping.
- Where you live. Angi prints ranges for ten cities, and populated areas cost more than rural ones. The calculator adjusts the labor share for your state's wages.
Extras to expect
| Item | Typical cost | When it applies |
|---|---|---|
| Tank inspection | $125–$375 | When selling a house, or to check the baffles and pipes |
| Filter cleaning | $100–$300 | Often included in the pumping; ask |
| Riser to ground level | $100–$200 | If the lid is buried and you want easy access next time |
| Replacing a lid | $150–$500 | For a cracked or missing lid |
If the tank itself is failing, see septic tank installation cost. For pipes and drains, see sewer line cleaning cost, drain cleaning cost and sewer line replacement cost. If you have a well as well as a septic system, see well pump replacement cost. Wet ground near the tank may point to French drain installation cost.
Questions to ask before you book
- Is the price for my tank size, and does it include filter cleaning and disposal?
- Does the estimate include finding the lids and digging to reach them?
- What do you charge for a long hose run, or for a tank that has not been pumped in years?
- Will you inspect the tank while it is empty, and is that in the price?
- Do you charge extra for evenings, weekends or an emergency call?
Methodology and sources
We price each tank size from the published guides, place the typical where the guides' averages fall in the ranges, and adjust the labor share for your state's wages. Forbes Home is used as an independent cross-check. Read how we estimate costs.
- Angi: how much does septic tank pumping cost — average, price by tank size, pumping frequency
- HomeGuide: septic tank pumping cost — price by tank size, per gallon, filter and inspection
- Fixr: septic tank cleaning cost — inspection, filter, riser and lid
- This Old House: cost to pump a septic tank — read as a comparison; its size table is from Angi
- Forbes Home: septic tank pumping cost — used as an independent cross-check
- BLS OEWS May 2025, State (SOC 47-2061, Construction Laborers) — state labor index
What each source reports
Our estimate does not rely on any single page. This table lists each page we used and the figures it reports, so you can see where the ranges come from.
| Source | What it reports |
|---|---|
| Angi |
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| HomeGuide |
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| Fixr |
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Common questions about septic tank pumping costs
How much does septic tank pumping cost?
A typical job (1,000 gallon tank) comes to about $430 nationally, within a range of $310 to $700. Use the calculator above to adjust for your state, the options you choose and any extras.
What is the average cost to pump a septic tank?
Angi puts the national average at $428, with most people paying $292 to $565. HomeGuide puts it at $375 in its summary and $300 to $700 in its text. For the most common 1,000 gallon tank the calculator shows $310–$700.
How much does it cost to pump a 1,000 gallon septic tank?
About $310–$700.
How much does it cost to pump a 1,500 gallon septic tank?
About $450–$1,075.
How do I know the size of my septic tank?
It is based on the number of bedrooms: Angi lists about 750 gallons for two bedrooms, 1,000 for three, 1,250 for four and 1,500 for five. Your county records, the permit or the pumper's visit will confirm it.
How often should a septic tank be pumped?
HomeGuide and Angi both advise every 3 to 5 years. Angi puts a four-bedroom home with a 1,250 gallon tank at every 3 years, and larger households sooner.
Does the price include cleaning the filter?
Often, but not always. Fixr says filter cleaning is usually included and costs $100 to $200 extra otherwise; HomeGuide puts it at $100 to $400. The calculator lists it as an extra of about $100–$300.
How much does a septic inspection cost?
About $125–$375 for a basic inspection. Angi prints $250 to $1,175, but that figure includes camera work.
Why do some quotes charge by the gallon?
HomeGuide prices pumping at $0.30 to $0.70 per gallon, and Fixr says most companies do not charge by the gallon. Compare quotes by tank size instead.
Where do these prices come from?
They come from 3 published cost pages from 3 publishers, last checked Oct 14, 2026. We report what those pages say and do not invent figures; the table above shows each source.
How does my state change the estimate?
The labor part of the price is scaled by the average wage for the relevant trade in your state, using Bureau of Labor Statistics data. Materials and equipment are not adjusted.
Why might a contractor's quote differ from this estimate?
A quote reflects your specific scope, access, local demand and what the contractor includes. Ask for line items rather than a single total so you can compare bids on the same basis.
All 3 sources behind these prices
Every figure in the calculator comes from one or more of these pages, with the number each one supports in the link text.