Overview
Septic tank installs are civil works first, plumbing second
A septic tank install is a civil works job that ends with a plumbing connection. The tank itself is the product line everyone sees. The hidden lines are excavation, base preparation, backfilling, the soakaway or drain field with the right percolation rate for the soil, and the building regs application that the contractor often forgets to charge for. Skip the percolation test and the soakaway fails inside two years; skip the building regs and the homeowner can't sell the house when they try to. A quote that just shows the tank and a labour day is a quote that loses on every civil works element.
QuoteGenio gives septic tank installers a structure that spells the civil works out. Site survey and percolation test as the first line, building regs application separately, excavation by cubic metre, tank by brand and capacity, soakaway or drain field with pipe and aggregate, backfill, and plumbing connection back to the house. Send the quote via WhatsApp with the test results attached, take a deposit on the tank order, raise progress invoices as the excavation and the tank installation pass each stage, and the final invoice when the system is commissioned and signed off.
Who it is for
Who uses QuoteGenio
Built for every type of septic and off-grid sewage installation business.
The problem
The quoting headaches every septic installer knows
Septic systems are sized by capacity, soil type, and household size. Getting all of that into a quote on-site without an hour at the kitchen table is what wins the job.
Sizing the system takes time
By the time you've worked out daily flow, soil percolation, and tank capacity, the client expects a quote on the spot.
Clients don't grasp the scope
Without a clear breakdown of tank, excavation, and soakaway, clients think a R198,324 install is just a R33,054 tank dropped in a hole.
Slow quotes lose rural builds
Owner-builders on rural sites get three septic quotes. The first complete quote with capacity and soakaway sized usually wins.
The fix
QuoteGenio makes it simple
A faster, cleaner workflow built around how septic installers actually work. On rural sites, with soil tests in one hand and a sketch in the other.
The payoff
What you get with QuoteGenio
The everyday wins that add up across a year of quoting and invoicing.
Built for septic work
Line items for tank, soakaway, percolation test, excavation, plumbing tie-in, and reinstatement. Everything a septic quote needs.
Works from your phone
Quote from the proposed tank pit. No laptop, no office trip, no after-hours admin.
Quote in under 2 minutes
A structured workflow that gets you from soil test to sent quote before the excavator is booked.
Track payments easily
Know which deposits and final invoices are outstanding and follow up with one tap. No spreadsheet required.
Built for your trade
Quoting calibrated to how septic tank installers actually work
Pick your trade in Settings and the entire quote flow switches to fit. Line item presets, compliance fields, on-the-quote calculators, and per-m² / after-hours pricing all change to match your industry.
Trade-specific line items
Quick add picker pre-fills the common items your trade quotes. Skip the blank rows.
Brand-specific catalogues
Pylontech, Hikvision, Canadian Solar, Sunsynk and others pre-named. Pick the brand, the description writes itself.
Compliance fields built in
IOPSA, ECASA, PIRB, PSIRA, NHBRC, SAQCC. Set once. Every quote prints them under FROM.
Registration expiry alerts
Dashboard notification 60 days before your PSIRA, CoC or any dated registration lapses.
Per-m² / hour / day billing
Unit selector on every line item: m², hr, linear m, days. Stop doing the maths externally.
After-hours and emergency
1.5× and 2× multipliers as a one-tap toggle. Customer sees the breakdown on the quote.
Quote-flow calculators
Solar size, battery backup, cable run cost. Compute on the spot, drop straight onto the quote.
Staged payments
Deposit on acceptance + balance on completion as two separate amounts on the quote PDF.
Scope-of-work checklist
Structured Included / Not included lists. Client acceptance = signing the scope.
Site-survey mode
Log a location per line item: camera positions, fixtures by room, sensors by zone.
Regional rate hints
Pricing ranges per item per currency shown as you quote.
Free on every plan
All of the above included on the free plan. Premium is for capacity, not the trade tooling.
Why QuoteGenio
Why Septic Tank Installers choose QuoteGenio
The tools that matter most when you are quoting on-site, under pressure, and between jobs.
Quote from your phone
Most Septic Tank Installers build and send quotes directly from the job site. No laptop, no office, no delays.
Win more jobs, faster
The first professional quote a client receives usually wins. Respond in minutes, not hours.
Quote to invoice in one click
When the job is accepted, convert to an invoice instantly. No retyping, no double entry.
Pricing guide
Typical Septic Tank Installers job pricing
A rough guide to what septic installers charge for common jobs. Pricing varies heavily by tank capacity, soil type, soakaway length, and whether the property needs a sealed conservancy tank or a percolating system. Use these as a sanity check when building your own rates, not as fixed numbers.
| Job | Typical range |
|---|---|
| Site visit and percolation test | R3,636 - R9,586 |
| Septic tank, 2,500L (3-4 person household) | R23,138 - R46,276 |
| Septic tank, 4,500L (5-6 person household) | R36,359 - R69,413 |
| Conservancy tank, 5,000L (sealed) | R39,665 - R79,330 |
| Soakaway / french drain (per metre) | R1,570 - R3,636 / m |
| Excavation and tank installation labour | R29,749 - R74,372 |
| Full septic system (3,000L tank, 30m soakaway, turnkey) | R140,480 - R297,486 |
Pricing converted from USD to ZAR at indicative rates. Rates vary significantly by country, region, currency, and market.
Call-out fees
A septic site visit covers travel, the percolation test, and a sizing discussion based on household size. Most installers charge R3,636 to R9,586 for the visit including soil testing and a written sizing recommendation. Always list it as a separate line so the client sees you're paid for the technical work upfront.
Hourly vs fixed pricing
Use fixed pricing per tank size, per metre of soakaway, and per the percolation test. Use hourly (R1,570 to R2,644 per hour) plus plant hire for excavation in unknown ground (rock, high water table, root mat). Add a daily plant standby rate for delays caused by client site access. Be explicit on the quote.
See it in action
Example quote breakdown
Here's what a clean, itemised quote for a typical 3,000L septic install looks like. Notice how the percolation test, tank, excavation, soakaway, plumbing, and sign-off each have their own line. Transparent quotes win septic jobs because the client can see exactly where every dollar goes.
Try it yourself
Job size
Region
Sample quote
3,000L septic system, 4-person household, 30m soakaway
Site visit, percolation test, sizing report
3,000L septic tank (Calcamite, supplied)
Excavation, set, level, and backfill (TLB hire)
Soakaway / french drain (30m, 110mm pipe + stone)
Plumbing tie-in from house to tank inlet
Commissioning, inspection, and council sign-off
| Description | Qty | Rate | Total |
|---|---|---|---|
| Site visit, percolation test, sizing report | 1 | R6,280 | R6,280 |
| 3,000L septic tank (Calcamite, supplied) | 1 | R32,228 | R32,228 |
| Excavation, set, level, and backfill (TLB hire) | 1 | R46,276 | R46,276 |
| Soakaway / french drain (30m, 110mm pipe + stone) | 30 | R2,396 / m | R71,892 |
| Plumbing tie-in from house to tank inlet | 1 | R14,048 | R14,048 |
| Commissioning, inspection, and council sign-off | 1 | R7,933 | R7,933 |
| Subtotal | R178,657 | ||
| Tax (10%) | R17,866 | ||
| Total incl. tax | R196,523 | ||
Totals recalculate as you change the controls above. Tax rate inferred from the sample quote.
Items often forgotten
Percolation test, plant hire and standby, the inlet baffle, the inspection cover, the inspection chamber, geofabric on the soakaway, the council inspection fee, and the second visit for sign-off. Add them as standard lines on your template so you stop absorbing them out of your margin.
Peer snapshot
How Septic Tank Installers actually use QuoteGenio
Indicative activity for Septic Tank Installers on the platform. Use it as a benchmark for how often to quote and how fast to respond.
35
Quotes sent per month
57%
Average quote acceptance
5 min
Median time to send quote
R196,523
Typical quote value
Figures are indicative platform averages for this trade segment.
Start quoting Septic Tank Installer jobs like this, free
Build your first quote in under 2 minutes. No credit card, no setup fee, no contract.
Avoid these
Common quoting mistakes
We talk to a lot of septic installers. The same pricing and scoping mistakes come up again and again. Fixing these will protect your margin and prevent the kind of callbacks that take a profitable job into the red.
Mistake: Quoting tank only, no soakaway
Better: Always quote the full system. A tank without a properly sized soakaway is a guaranteed callback. Itemise the soakaway per metre with the assumed length stated.
Mistake: Skipping the percolation test
Better: Always quote the perc test. Sizing a soakaway without one is a warranty risk that will come back to bite you when it surcharges in the first wet season.
Mistake: Vague excavation line
Better: Specify plant hire, dig depth, backfill, and reinstatement separately. 'Excavation included' invites disputes when the client expects a manicured lawn afterwards.
Mistake: No allowance for hard ground or rock
Better: Rocky soil can double the dig cost. Have a 'difficult ground' premium and reference it on the quote so there's no fight when the bucket hits granite.
Mistake: Forgetting council sign-off
Better: Most regions require council inspection and sign-off on a new septic system. Quote the fee and your follow-up visit as their own lines.
Mistake: Bundling plumbing tie-in
Better: The run from the house to the tank inlet is a separate scope. Quote it per metre or as a fixed line so it's never absorbed into 'install'.
Mistake: No expiry on the quote
Better: Set a 14 to 30 day validity. Tank, fuel, and plant hire prices move, and you don't want to honour a three-month-old quote at a loss.
Mistake: No follow-up after sending the quote
Better: Most quotes that don't close, don't close because nobody followed up. Send a polite check-in 48 hours after the quote lands, and a second nudge at day 7. Two of every three accepted quotes get there because someone followed up.
Step by step
How to quote septic tank jobs
Run a percolation test on-site before you size anything. Dig a test pit at the proposed soakaway location, saturate, and measure the water drop in centimetres per hour to confirm whether you need a standard french drain or a reed-bed alternative. Count bedrooms and likely occupants to size the tank correctly (a 2,500L tank suits 3 to 4 people, a 4,500L tank suits 5 to 6), check the slope from the house to the proposed tank pit, and measure the plumbing tie-in run. Inspect access for a TLB or excavator, because a tight rural driveway that needs a smaller machine will push excavation hours up considerably. Photograph the site and file the soil samples with your sizing report.
Quote the full system, never tank-only. List the percolation test and sizing report at $ 220 to $ 580, then the tank with brand and capacity ('Calcamite 3,000L polyethylene'), excavation with plant hire, dig depth, backfill, and reinstatement as a combined line at $ 1,800 to $ 4,500. Price the soakaway or french drain per metre with the length assumption stated at $ 95 to $ 220 per metre including pipe, stone, and geofabric. Break out the plumbing tie-in from house to tank inlet, the inlet baffle, inspection chamber, and inspection cover. Finish with council inspection fee and sign-off visit at $ 480. For conservancy tanks, price the alarm float and offer a recurring pump-out service as a follow-on quote.
Set 14 to 30 day validity on every septic quote. Polyethylene tanks, plant hire, diesel, and aggregate prices move with fuel and seasonal demand, and heavy rain seasons shift excavation schedules by weeks. Always take a 40 to 50 percent deposit at acceptance to cover the tank order and plant hire booking, with a non-refundable mobilisation portion if the site is remote. State your hard-ground premium (rock, high water table, or root mat) in the quote so there is no fight when the bucket hits granite. Include a daily plant standby rate for client-caused delays and a 12-month workmanship warranty, separate from the tank manufacturer warranty.
Send the quote before you leave the farm gate. Owner-builders on rural sites collect three septic quotes and the first complete system price with capacity and soakaway sized usually wins, because the competitors quoted tank-only and the client can see the difference. Build the quote on your phone with the percolation test result noted and a rough sketch referenced, WhatsApp or email the PDF link the same afternoon, and follow up after three days. If excavation hits rock or a spring, send a variation quote with the hard-ground premium applied immediately, so the client agrees in writing before the dig continues.
FAQ
Common questions from septic tank installers
Everything you need to know before getting started.
Yes. QuoteGenio lets you add any line item: tank, soakaway, excavation, plumbing tie-in, or VAT. Structure your quote exactly the way you invoice.
Yes. Once your quote is ready, share it as a link directly via WhatsApp. Your client gets a professional branded document instantly.
Each line item has its own description, quantity, and price. Add as many lines as the install needs and group them however makes sense for the client.
Yes. Every quote has a unique public link. Your client can open it on their phone and accept it online. No signup required.
Yes. Convert any accepted quote into an invoice with one click. All the line items carry over, so there's no double entry.
Yes. The free plan gives you 5 quotes and 2 invoices per month with no credit card required. Upgrade to Premium for unlimited quotes, invoices, statements, and reports.
By tank capacity, with the household size noted in the description. A 3,000L tank suits 4 to 5 people in most regions, but local sizing standards vary. Quoting by capacity makes the spec defensible if council later challenges the design, and it forces you to do the sizing properly rather than under-spec on price pressure.
Yes. Soakaway sizing depends entirely on the soil's ability to absorb water. Without a perc test you're guessing, and a soakaway that surcharges in winter is a warranty disaster. Quote the test as its own line and include the result in your sizing report. It also protects you if the system fails years later due to soil change.
Quote the tank, the inspection chamber, the alarm float, and a recommended pump-out schedule with a per-load cost. Conservancy tanks need pump-out every few months because nothing percolates away, so factor the ongoing cost into the client conversation. Many installers offer a service plan as a follow-on quote on the same job.
14 to 30 days is standard. Tank, plant hire, fuel, and aggregate prices move, and seasonal rain affects when the dig can happen. QuoteGenio lets you set an expiry date that appears on the PDF, so there's no awkward conversation if the client comes back later expecting the same price.
Still have questions? We would rather answer them now than after you have signed up.
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Guides
Guides for Septic Tank Installers
Practical advice to help you quote better, get paid faster, and grow your business.
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