Two quotes for a pool or hot tub can show the exact same figure on the bottom line and still represent completely different jobs. One company’s price includes excavation, the electrical connection, transport, crane handling, inspection and operator training. Another offers the same amount for just the structure and equipment — everything else gets ordered separately, usually right when the customer has already signed the contract and backing out is expensive. The difference in this kind of “hidden” pricing can easily reach tens of thousands of crowns, and it surfaces at exactly the moment when it’s hardest to negotiate.
This article shows how to compare quotes on the same scope, not by the last digit on the invoice — what specifically to check, what to ask suppliers, and what signals reveal that a cheaper quote is leaving something important out.
Why comparing the total price alone doesn’t work
A total price is the sum of many individual decisions — what scope of work the company included in the quote, what technology and materials it will use, how long and how specific a warranty it offers, when the job will actually be finished, and under what payment terms. If you only look at the final number, you’re effectively comparing two different products that happen to land on a similar figure.
A typical example: quote A at 480,000 Kč (approx. €19,200) includes groundworks, transport, equipment installation, an electrical inspection and an hour of operator training. Quote B at 460,000 Kč (approx. €18,400) covers only supply and installation of the shell or liner — excavation, crane transport, the electrical connection and inspection are “as required” and billed separately. Once you add up the missing items, quote B can end up more expensive than A — but the customer only finds that out partway through the build.
Before comparing price, compare scope first. Only once both quotes cover the same items under the same conditions does it make sense to ask which one is cheaper.
What exactly to compare: a checklist and item table
Differences between quotes hide in six areas. Go through them for both quotes one by one, and write down a question for the supplier for any item that’s missing or only described in general terms.
1. Scope of work
What does the company physically do, and what’s left to the customer or another contractor? Groundworks and base preparation, transport and crane handling, structure installation, equipment hookup, filling and first start-up, site clean-up after completion.
2. Materials and equipment
A quote should name a specific brand and model, not just a general category like “quality filtration.” You want to know the pump and filtration output relative to the pool volume, the liner type and thickness or shell material, the heating output and efficiency, and the method of disinfection.
3. Warranty
Warranties on pools and hot tubs are usually split into three parts with different lengths — the structure or shell, the equipment, and the installation work itself. A quote should state a specific number of years for each part, not just a general phrase like “warranty as required by law.”
4. Completion timeline
You want a real start and finish date, not just a vague “in spring.” Ask what happens in the event of delay — whether there’s a contractual penalty.
5. Payment terms
The size and timing of deposits, when the balance is due and under what conditions. A large upfront deposit with no link to work progress increases your risk.
6. What is NOT included in the price
This is where the most expensive surprises come from. Explicitly verify with both suppliers whether the price includes: excavation work and soil removal, an electrical inspection, transport and crane handling, operator training and handover of documentation.
| Area | What to verify | What’s most often missing |
|---|---|---|
| Scope of work | Who does the excavation, installation, hookup, start-up | Groundworks, site clean-up |
| Materials and equipment | Specific brand, model, output | Filtration and heating specifications |
| Warranty | Years, listed separately for structure, equipment, work | Warranty on the installation work |
| Completion timeline | Specific date, penalty for delay | Penalty for missing the deadline |
| Payment terms | Size of deposits, linked to work progress | Conditions for the final balance after handover |
| What’s not in the price | Excavation, inspection, transport, training | Electrical inspection, crane, transport |
How to question a supplier about differences
The point of the following questions isn’t to catch a supplier out, but to understand why the quotes differ. A solid company can answer every one of them specifically and without hesitation.
- “What exactly is included in the price, and what’s an extra charge?”
- “What brand and model of equipment are you offering, and why that one?”
- “Who handles the excavation, soil removal and electrical connection?”
- “What’s the warranty, listed separately for the structure, the equipment and the installation work?”
- “What’s the binding completion date, and what happens if it slips?”
- “How do the payments work — how much and when is the deposit, when is the balance due?”
- “Who carries out the electrical inspection and operator training after handover?”
- “How does servicing and spare-part availability work after the warranty ends?”
- “Can you provide a reference from a similar project, ideally with a contact for the customer?”
Red flags in a cheap quote
None of the following flags alone necessarily means fraud. The signal is when several pile up together, and above all how the supplier reacts when you ask about a missing detail.
- Vaguely described equipment. Phrases like “complete equipment package” with no brand, model or output.
- Missing or only approximate timeline. “Completion in spring” instead of a specific date with a penalty clause.
- Warranty only “as required by law.” No breakdown of years for the structure, equipment and work performed separately.
- Items marked “as required.” Excavation, transport or crane work with no price or even an estimate given.
- A large upfront deposit. A payment approaching 100% of the price with no link to work progress.
- No verifiable references. A company with no track record of completed projects, or unwilling to provide a customer contact.
- Verbal promises outside the written quote. “We’ll sort that out, don’t worry about it” for an item that’s missing from the quote.
- Missing company identification. A quote with no company registration number, registered address or verifiable contact.
When a price difference is justified
Not every price difference signals a problem. Quotes legitimately differ based on the actual quality of materials and equipment, on whether the company works with its own trained installation crew or subcontracts the work, on how busy it is that season, and on region. An experienced company with strong references and a full schedule can usually afford to charge more, because demand for its services exceeds its capacity.
A difference like that isn’t a reason for suspicion — it’s a reason to ask what it’s based on, and to weigh it against the concrete benefit, rather than automatically rejecting the more expensive quote or automatically accepting the cheaper one.
How to put the comparison into practice
The simplest way to make a comparison clear is to score both quotes against the same criteria — not just price, but also scope, warranty, timeline and references. Our quote comparison calculator is built for exactly this: enter the parameters of both quotes, and the calculator works out which one comes out objectively ahead, even if it’s not the cheapest.
Before you close out the comparison, also read the related article what to check in a pool or hot tub quote and contract. And if a noticeably cheaper option has caught your eye, read a cheap pool quote: what might be missing from the price first.
Don’t want to compare on your own?
If something still doesn’t add up even after comparing quotes, or you’re only just starting to gather them, you don’t have to handle everything from scratch yourself. Submit one request through our request form and get up to three directly comparable quotes from vetted suppliers.
Frequently asked questions
Does it make sense to send a supplier a competitor’s quote and ask why theirs is more expensive or cheaper?
Yes. The goal isn’t to force a discount, but to understand the difference in scope. A solid supplier will explain exactly what they’re doing differently. If the answer stays evasive, that’s a signal in itself.
What all needs to be in writing in a quote?
Scope of supply and work, specific materials and equipment, a price broken down by item, the completion timeline, warranty terms listed separately for the structure, equipment and work, payment terms, and liability for defects.
Is the cheapest quote automatically the worst one?
Not necessarily. The cheapest quote can be perfectly fine if it covers the same scope as the others. The problem arises when it’s cheaper only because it leaves out something important.
How many companies is it worth approaching before deciding?
Three comparable quotes are usually enough to see the spread in both price and scope.
What should I do if a supplier refuses to break the price down by item?
Treat it as a warning sign. An itemised price breakdown by scope of work, materials and services is a standard requirement for a job in the hundreds of thousands of crowns.
How do I know when a “statutory” warranty isn’t enough?
A statutory warranty doesn’t distinguish between the structure, the equipment and the installation work, which typically have different service lives. A solid supplier will offer a longer contractual warranty on the structure and a separately shorter one on the technical components.
Do I have to compare quotes manually, or is there a tool for it?
You can manage a manual comparison using the checklist, but for a faster result you can use the quote comparison calculator.
Next step
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