How to Compare Water Installer Quotes

Getting three quotes is good advice. Getting three comparable quotes is the part nobody explains. If one installer prices a borehole with casing, pump, pressure vessel, electrical connection and a compliance certificate, while another prices only the drilling and pump, you are not comparing the same thing — you are comparing a complete system against a starting point. This guide walks you through how to read installer quotes line by line so you can make a decision based on real differences, not superficial ones. You can also read about how the overall process works before you start collecting quotes.

Start With a Scope-of-Work Checklist

Before you send a single enquiry, write down exactly what you need done. For a borehole installation this typically includes: drilling to a specified depth, steel or PVC casing, a submersible pump sized to your household, rising main pipework, a surface pressure vessel, connection to your home’s plumbing, electrical supply to the pump, a control panel, and a compliance or completion certificate. For a backup tank-and-pump system the list is different but the principle is the same — jot down every component.

When you send that list to installers and ask them to quote against it, you create the conditions for a fair comparison. If you simply say ‘quote me for a borehole’, each installer will make different assumptions, and you will end up with quotes that cannot be compared directly.

Read Every Line, Not Just the Total

Once quotes arrive, resist the urge to skip to the bottom. Work through each line item and ask: is this included or excluded? Common items that silently disappear from cheaper quotes include:

• Trenching and backfill — running pipework underground between the borehole and the house can add meaningful cost.
• Electrical work — a dedicated circuit from your DB board to the pump control panel is often priced separately or excluded entirely.
• Municipal or council compliance — some municipalities require a borehole to be registered; the paperwork and site visit are not free.
• Casing and gravel pack — the type and depth of casing affects both water quality and long-term pump life.
• VAT — check whether amounts are VAT-inclusive or exclusive, particularly with sole-trader installers.

Build a simple table with installers across the top and line items down the side. Mark each cell ‘included’, ‘excluded’, or ‘not stated’. Items marked ‘not stated’ need a follow-up call before you proceed.

Match System Specifications, Not Just Categories

Two quotes can both say ‘submersible borehole pump’ and describe entirely different equipment. A pump rated for 1,500 litres per hour serving a household of four is not the same as one rated for 500 litres per hour. Ask each installer to state:

• The pump brand and model number
• The flow rate in litres per hour or per minute
• The pump’s maximum head (depth rating)
• The pressure vessel capacity in litres
• The pipe diameter and material

For context, typical complete borehole systems in Johannesburg run R40,000–R150,000, with most households falling between R60,000 and R100,000. Borehole pumps alone typically cost R15,000–R35,000 installed. Backup tank-and-pump systems typically run R20,000–R40,000, with whole-house setups around R55,000. If a quote sits well outside these ranges in either direction, that is a signal to dig into the line items rather than assume you have found a bargain or been overcharged.

If you want to collect multiple itemised quotes in one step, request quotes through WaterQuotes and installers will respond to your specific scope rather than a generic enquiry.

Check What the Warranty Actually Covers

Warranty wording varies more than most homeowners realise. Ask each installer to clarify:

• Workmanship warranty — how long, and what does it cover? Leaks? Pump failure caused by incorrect installation?
• Equipment warranty — is this the manufacturer’s standard warranty passed through to you, or does the installer add anything on top?
• Call-out terms — if something fails in the first year, who pays for the site visit and labour?

A shorter warranty is not automatically bad if the installer has a strong local track record and is easy to reach. A longer warranty from a company that may not exist in two years is worth less on paper than it sounds.

Evaluate Experience and Compliance Credentials

Price and specifications aside, you need to be confident the installer can legally do the work and will do it correctly. Useful questions to ask:

• Are they registered with the Department of Water and Sanitation (DWS) as a water use licence applicant or driller, where applicable?
• Is their electrician certified to wire the pump control panel under the Occupational Health and Safety Act?
• Have they done similar installations in your suburb? Borehole yields, depth, and water quality vary significantly across Johannesburg, so local experience is genuinely useful.
• Can they provide references from recent customers in your area?

Be sceptical of any installer who cannot answer these questions clearly or who discourages you from checking references.

Understand What Drives Price Differences

Once you have matched scope and specs, genuine price differences usually come down to a few factors:

Factor	Effect on price
Drilling depth	Deeper boreholes cost more; Johannesburg geology varies by area
Pump brand and quality	Premium brands carry higher upfront cost but often lower replacement risk
Installer overheads	Established companies with full crews cost more than sole traders
Site access	Rocky ground, narrow access, or long pipe runs add labour time
Local demand	During drought periods or after major outages, installer capacity tightens and prices rise

A price difference of 10–20% on a like-for-like quote is normal and probably reflects overhead or margin differences. A difference of 40% or more usually means the scope is not actually identical — go back and check.

Make the Decision on Value, Not Price

The cheapest complete quote from a credentialed, reachable installer with solid references is almost always better value than the cheapest overall quote that turns out to exclude half the work. Conversely, the most expensive quote is not automatically the best — some installers charge a premium that is not reflected in better materials or service.

Once you have matched scope, confirmed specs, checked warranties, and verified credentials, compare the remaining prices honestly. If two installers are closely matched on everything else and one is meaningfully cheaper, there is no reason not to choose them. The goal of a fair comparison process is to reach that point with confidence rather than guesswork.