I requested 10 renovation quotes. Only 4 replied, and I still could not compare them

To request useful renovation quotes, send every contractor the same description of the work, ask for a clear breakdown and require them to identify exclusions. Aim to receive at least three comparable offers, but contact more than three companies because many may not respond.

I learned this through a real project at home. What looked like a straightforward exercise in comparing prices became a lesson in scope, assumptions, permits and costs hidden inside vaguely defined work items.

Along the way, I discovered six practical rules that can help any homeowner prepare a renovation tender and make a more informed decision.

The project: repairing a sewer connection

We need to repair the pipe connecting an internal inspection chamber at our house to the municipal sewer network.

The problem was identified by a company that inspected the pipe and prepared the first quote. The work is more complex than a normal internal plumbing repair because part of the pipe runs beneath a public road.

The project may therefore involve:

• excavation and pipe replacement;
• opening and reinstating the road surface;
• traffic management;
• permits and municipal coordination;
• a technical design or supporting documentation;
• inspection and formal completion of the work.

Before spending several thousand euros, I wanted to compare alternatives.

Instead of writing a new project description, I took the PDF of the first contractor’s quote and removed all prices. I then sent this “blind quote” document to ten other companies.

The intention was simple: every contractor would price the same stated work without being influenced by the first company’s figures.

What is a comparable renovation quote?

A comparable renovation quote is an offer prepared against the same scope, assumptions and level of detail as the other offers.

Two quotes are not truly comparable merely because they refer to the same house or problem. They must also answer the same questions:

• Are they pricing the same quantities?
• Are the same tasks included?
• Are permits and professional fees included?
• Who is responsible for waste removal?
• Does the price include finishing and reinstatement?
• What assumptions has the contractor made?
• Which risks or unknown works are excluded?

A quote of €9,000 may be more expensive than an €8,000 offer, but it may also include traffic management, technical documentation and road reinstatement that the cheaper offer omits.

The total alone does not tell you what you are buying.

Why requesting several quotes matters

I contacted ten companies and received only four responses.

That was the first useful lesson. If you want three or four serious offers, contacting only three or four contractors may not be enough.

Companies may decline because:

• the project is too small or too specialised;
• they do not cover the location;
• they do not have capacity;
• the information is insufficient;
• the work does not fit their normal trade package;
• they simply do not respond.

Advice 1: Request more quotes than you need

For many homeowner projects, receiving three comparable quotations is a reasonable basis for evaluating price, scope and approach. To obtain those three, you may need to contact substantially more companies.

The objective is not to collect the largest possible number of prices. It is to obtain enough complete offers to identify outliers and understand the market.

Provide every contractor with the same information

All four contractors had received the same initial PDF, but their responses were still structured differently.

Some grouped several activities under one broad item. Others provided detailed breakdowns. Certain tasks appeared in one quotation but were missing from another.

Advice 2: Issue one common request for quotation

Every bidder should receive the same information, ideally in a single document.

For a renovation project, include:

1. The address and type of property.
2. A concise description of the problem or intended result.
3. Drawings, photographs, surveys or inspection reports.
4. Approximate dimensions and quantities, where known.
5. Access restrictions and occupied areas.
6. Required finishes and quality expectations.
7. Known permit or technical documentation requirements.
8. The requested start period and any deadline.
9. A request for exclusions, assumptions and optional items.
10. A deadline for submitting the quotation.

If a technical professional has prepared a specification or bill of quantities, use it. For smaller works, a clear written scope with photographs is still better than separate informal conversations with each contractor.

Why the first quotes were difficult to compare

The clearest example involved traffic management.

Because the damaged pipe passes beneath a road, the contractor may need to manage traffic, coordinate the temporary closure and reinstate the affected surface.

In some quotes, these activities appeared as separate items. In others, they seemed to be included within a broader construction item. In some, it was unclear whether they had been considered at all.

I spent several days exchanging messages and calls:

• Is the traffic closure included?
• Who applies for the permit?
• Is technical design included?
• Does the price include formal completion or inspection?
• Is road reinstatement part of the offer?
• What happens if the actual pipe route differs from the assumption?

Each answer solved one question and often raised another.

Advice 3: Ask what is excluded, not only what is included

A useful quotation should state its exclusions and assumptions explicitly.

Ask each contractor to confirm:

• work not included in the price;
• third-party fees excluded;
• permits or licences excluded;
• provisional sums;
• quantities that will be remeasured;
• unknown ground or structural conditions;
• client-supplied materials or services;
• tasks that may become variations.

An omitted item is not necessarily included for free. It may simply become an additional charge later.

How I created a common budget structure

I eventually concluded that I could not compare the total prices until I had normalised the scope.

I created a master budget containing the union of all work items mentioned by any contractor. If one company included a task that the others did not mention, that task became a line in the common structure.

For example, the master budget could contain:

• preliminary investigations;
• technical design;
• permit management;
• traffic management;
• excavation;
• pipe removal;
• new pipe installation;
• connections and testing;
• backfilling;
• road reinstatement;
• waste transport;
• completion inspection.

I used Presuo to build the common structure and map each quotation against it. It made the process quick and allowed me to focus on the differences rather than maintaining the comparison itself.

The same exercise can be done manually in Excel. You can also use ChatGPT to help extract and organise items from individual documents, although you still need to verify every figure and inclusion against the original quotes. For several detailed offers, both approaches can involve considerable checking.

Advice 4: Compare line items, not only final totals

Create a table with one row per work item and one column per contractor.

For each cell, record whether the item is:

• separately priced;
• included in another item;
• excluded;
• not mentioned;
• subject to confirmation;
• provisional.

This distinction matters. A blank cell should not automatically be treated as zero.

What the detailed comparison revealed

The four headline totals ranged from approximately €8,000 to €13,000.

At first sight, the cheapest and most expensive bids appeared to be separated by €5,000. Once I reviewed the component costs, the comparison became more useful.

The execution cost varied by roughly 30% between contractors.

Technical design was close to €1,800 in most offers, while one company priced it at approximately €2,500.

Completion and inspection-related work ranged from roughly €1,000 to €4,000.

Permit and licence management appeared at €0, €1,200 or €1,600. However, a zero did not always mean there was no cost. In some quotations, it appeared to be absorbed into another broader item, making the real comparison difficult.

This is why quote analysis must distinguish between:

• a genuine zero price;
• an included cost;
• a missing item;
• an excluded item;
• an undefined item.

Practical comparison example

Imagine two contractors submit the following offers:

Item	Contractor A	Contractor B
Pipe and excavation work	€7,500	€6,800
Technical design	Included	€1,800
Traffic management	Not stated	€1,200
Completion inspection	€1,000	Included
Total shown	€8,500	€9,800

Contractor A appears cheaper by €1,300. But if traffic management and technical design are not included, its comparable cost may be higher than Contractor B’s.

The question is therefore not “Which total is lowest?” but “What will I need to pay to complete the same defined project?”

Confirm the scope before awarding the work

After creating the master structure, I exported it as a PDF and sent it to the contractors. I asked them to confirm which items were included in their offers.

Not every company was willing to provide full confirmation before being selected. Some preferred to define certain details after appointment.

That creates a significant risk for the homeowner. Once a contractor has been selected and the work is about to begin, changing supplier becomes harder. Unresolved items can then appear as additional work or variations.

Advice 5: Obtain written confirmation

Before accepting a quote, ask the contractor to confirm:

• the final scope;
• inclusions and exclusions;
• payment stages;
• assumptions;
• provisional amounts;
• responsibility for permits;
• how variations will be approved;
• whether taxes are included;
• the expected programme;
• the validity period of the offer.

A quotation is not genuinely complete if the price is fixed but the scope remains open.

Arrange a site visit before the final decision

The contractors prepared their initial quotations from the document I sent. They did not visit the property.

That made the process efficient for obtaining early market feedback, but it also means the offers rely on the first company’s assumptions.

The next step is an on-site review with one of the contractors to verify the pipe route, access, excavation conditions and road requirements.

Advice 6: Validate assumptions on site

For technically uncertain work, use the initial quotations to create a shortlist. Before awarding the contract, arrange a visit with the preferred contractor and confirm any assumptions that could affect cost.

A site visit is particularly important when the project involves:

• hidden services;
• underground work;
• structural alterations;
• occupied buildings;
• difficult access;
• protected finishes;
• shared or public areas;
• uncertain dimensions.

Common mistakes when requesting renovation quotes

Sending different information to each contractor

Separate conversations lead to separate interpretations. Use one common scope and issue the same revisions to everyone.

Comparing only the total price

A low total may reflect missing work rather than better value.

Treating unmentioned items as included

Ask for written clarification. “Not stated” is not the same as “included.”

Failing to identify allowances and provisional sums

An allowance may change when the actual product, quantity or condition is known.

Choosing before resolving major uncertainties

Site conditions, permissions and technical design can significantly change the final cost.

Accepting verbal clarifications only

Important answers should be incorporated into the final quotation, scope or contract documents.

FAQ

How many renovation quotes should I request?

Aim to receive at least three complete and comparable offers. Because not every contractor will reply, you may need to contact more than three companies.

What information should I provide?

Provide the same written scope, photographs, drawings, quantities, access constraints, quality expectations, known permits and requested programme to every contractor.

Should contractors visit before quoting?

A site visit is advisable for complex, hidden or technically uncertain work. An initial desktop quote can help create a shortlist, but key assumptions should be checked before appointment.

How can I make renovation quotes comparable?

Create a common list of work items and map each offer against it. Record whether each item is priced, included elsewhere, excluded, provisional or not mentioned.

Is the cheapest quote usually the best?

Not necessarily. The cheapest total may omit work that other contractors have included. Compare the complete scope, risk allocation, programme and commercial terms.

Can I compare quotes in Excel or with ChatGPT?

Yes. Excel can support a line-by-line comparison, and ChatGPT can help organise information from documents. Every extracted item and figure should still be verified. A dedicated budgeting tool can make repeated comparisons and revisions easier.

Conclusion

I began this process expecting the main challenge to be finding a competitive price. The real challenge was establishing what each company was actually offering.

Request more quotes than you expect to receive, give every contractor the same information and compare the scope line by line. Most importantly, resolve exclusions and assumptions before appointing anyone.

A renovation quote is only useful when you understand what must happen, who is responsible for it and whether the stated price covers the complete result.