Defective Performance, Delivery Time, and Protection of the Employer in Construction Contracts

1. Introduction: “The Work is There, But This Is Not What We Expected”

Work contracts are central to daily life in both the construction industry and in software, design, repair, project, and consulting businesses. Whether we're asking a contractor for a house, a software developer for a website, a craftsman for kitchen cabinets, or an agency for corporate identity work, we often a work contract .

However, in practice, the following problems are very frequently encountered:

• The artwork is not being delivered on time

• The delivered work does not comply with the agreed technical specifications

• The work is left as it started or left incomplete

• The flaws only become apparent after you start using it.

Here are the questions most frequently asked by business owners:

"Do I have to pay for this defective work?"
"What can I do if the delivery deadline passes?"
"Can I still claim rights after accepting the work?"

The Turkish Code of Obligations (Articles 470 et seq.) regulates contracts for work in detail; defective performance, delivery time , and the protection of the client are addressed within a systematic framework.

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2. Legal Framework of Contracts for Works (Turkish Code of Obligations, Articles 470 et seq.)

2.1. Definition and Elements of a Contract for Work

According to the Turkish Code of Obligations, a contract for work is an agreement in which the contractor (builder/craftsman/software developer, etc.) undertakes to create a work , and the client undertakes to pay a price in return . In this relationship:

• The work is often material (building, renovation, machinery, furniture),

• Sometimes it can also be intangible (software, design, report, project).

The distinguishing elements of a contract for work:

1. Result obligation: The contractor's obligation is not only to work diligently, but to produce a specific result (work).

2. Independence: The contractor undertakes the work as an independent individual/company, not as an employee of the client.

3. Fee (or price): The price agreed upon or customarily determined in exchange for the creation of a work.

As a natural consequence of this structure, defective performance and delivery timeconstitute the two most critical axes of a contract for work.

2.2. Contractor's Obligations

The contractor's main obligations arising from the construction contract are:

• The obligation to produce the work as agreed,

• The obligation to have the work done personally or under one's supervision,

• duty of care (exercising necessary professional care and diligence),

• Delivery obligation,

• Liability for defects and obligations to inform the employer.

From the client's perspective, the most concrete question is: "Was the work delivered on time and without defects?" Therefore, we will examine these two points separately but in an interconnected manner below.

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3. The Concept of Defective Performance in Construction Contracts

3.1. What is Defective Performance?

In a contract for work, defective performance refers to a failure of the contractor to deliver the work:

• Being contrary to the specifications agreed upon in the contract ,

• The use is not suitable for the intended purpose that the business owner rightfully expected .

• The work deficiencies, defects, flaws , or breaches of contract .

That is the state.

Shame doesn't only refer to physical defects. For example:

• High heat loss in a house where thermal insulation was promised,

• The elevator's load capacity not reaching the agreed-upon value according to the technical reports,

• In corporate identity work, creating a design that is so irrelevant that it doesn't match the business owner's industry,

• The software that was developed is so flawed that it cannot handle the business owner's business processes

These can be cited as examples.

3.2. Types of Defects

The flaws in the work manifest themselves in different ways in practice:

• Obvious defect: Defects that can be detected at the time of delivery through a normal inspection (e.g., cracks, missing cabinets, color differences).

• Hidden defects: Faults that are not noticeable during normal inspection but become apparent with use (e.g., inadequate waterproofing, deficiencies in infrastructure).

• Significant defect (fundamental defect): Defects that seriously prevent the work from being used for its intended purpose.

• Minor defects: Flaws that do not impair the essential function of the work, but are bothersome in terms of visual appeal and other aspects.

This distinction which optional rights the business owner will exercise and to what extent .

3.3. Basic Conditions for Defective Performance

In order for the employer to claim "defective performance," as a rule:

1. a contractual relationship (a valid contract for work),

2. The work must have been delivered (in some cases, defects may be discovered even before delivery).

3. The work a defect/deficiency that violates the contract .

4. The business owner must inspect and report (notification obligation).

5. the relevant limitation periods .

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4. The Employer's Optional Rights in Case of Defective Performance

In a contract for work, the most important means of protecting the client against defects is the system of optional rights. According to the provisions of the Turkish Code of Obligations, the client may assert one of the following claims, or a suitable combination thereof, when the conditions are met:

4.1. Refusal to Accept the Work and Termination of the Contract

the defect in the work is serious and substantial , the owner:

• They may refuse to accept the work .

• The right to withdraw from the contract for work can be exercised.

For example:

• A building that violates earthquake regulations and poses a serious structural risk

• A machine that is incapable of performing its promised function

In this case, the employer may withdraw from the contract saying, "I don't want to buy this work at all." In the event of withdrawal:

• The parties shall return what they received;

• The business owner wants a refund for the amount paid

• The work is usually returned to the contractor (or the costs of demolition, dismantling, etc. are subject to discussion).

The business owner can also claim compensation if there is any damage

4.2. Requesting a Price Reduction (Reduction proportional to the defect)

If the offense is not serious enough to warrant the complete rejection of the work, the employer:

• He accepts the work,

• However, they request a discount on the price proportional to the defect

For example:

• The kitchen cabinets were made of lower quality materials than agreed upon

• Some of the ceramics have color and pattern discrepancies

• If the building's exterior cladding material has been replaced with a lower quality product,

The business owner might say the following:

"I'm not completely rejecting the job, but the amount I paid is excessive due to the defect; I'd like a reduction."

To fulfill this request, an expert examination conducted to determine the difference in price caused by the defect.

4.3. Free Repair (Completion, Removal)

Another option to remedy. The business owner:

• the defect in the work be repaired free of charge within a reasonable time .

• This right is frequently used, especially in technical fields such as machinery, software, electricity, and plumbing.

Here:

• Whether repair is possible,

• Whether the repair will make the artifact safe and usable again,

• Whether the repair will impose an unexpectedly large burden on the business owner

This is evaluated. Defective performance may also arise again during the repair phase; in this case, the employer will pursue their other optional rights.

4.4. Re-performance of the work (Creation of a new work)

In some cases, repair is not possible or sufficient; the employer:

• The reconstruction of the work ,

• They may request that the entire process be repeated as if it were the first time.

This is especially relevant for typical and standard projects (e.g., prefabricated kitchens, standard software modules, products that can be assembled). However, to rephrase:

• If it requires excessive expense and time,

• If it creates a delay that cannot be expected from the employer,

This can be limited by the judge; at this point, price reduction and compensation come into play.

4.5. Compensation Claim

Due to defective performance, the employer:

• Direct damage (for example, expenses incurred to remedy the defect),

• Indirect damages (such as loss of business, impediment to use, loss of rent and workplace)

can request it. Here:

• Contractor's fault,

• The weight of the shame,

• What did the business owner do after reporting the defect?

This is taken into consideration. Defective performance is often breach of contract and faulty performance ; the compensation regime is shaped accordingly.

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5. Obligation to Report Defective Performance and Statute of Limitations

5.1. Obligation to Inspect and Report

After the client receives the artwork:

• To examine the work within a suitable timeframe,

• also to report any defects he notices to the contractor without delay .

If this obligation is not fulfilled:

• The client may be considered to have "accepted the work without defect,"

• It becomes more difficult to claim compensation for defects that are discovered later.

As for hidden flaws:

• If the defect is of a nature that cannot be detected by normal inspection

• It should be reported immediately upon discovery .

At this point, providing a written and verifiable notice via a formal warning letter will make it easier to prove your position later.

5.2. Statute of Limitations Periods

In lawsuits arising from defective performance in construction contracts, the statute of limitations is of great importance. The Turkish Code of Obligations stipulates time limits that vary according to the nature of the work (particularly longer periods for construction and similar works intended for long-term use). Basic principles:

• Rights based on defects must be exercised within a specified period following the delivery of the work

• In cases of defects that become apparent a long time after delivery, the statute of limitations may limit the employer's claims.

• In cases of gross negligence, fraud, or intent, the statute of limitations rules may be interpreted more flexibly.

In practice, delivery dates, provisional/final acceptance reports, and warranty periods are extremely critical in project, construction, installation, and similar works.

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6. Delivery Time, Contractor's Default and Employer's Rights

performance, as well as flawless performance is essential to a contract for work. The client often says:

• Opening a business,

• Move,

• Renting,

• Seasonal use (hotel, summer house, etc.)

They make their plans according to the delivery deadline. Therefore, delays in delivery often lead to very serious losses.

6.1. How is the delivery time determined?

Delivery time:

• By specifying a particular date or calendar in the contract (for example, “delivery by 30.09.2026”),

• The work schedule, phase deliveries, provisional and final acceptance dates are determined

• In some cases, depending on the nature of the work and custom, it is done within a "reasonable time"

It can be decided.

Clearly and unequivocally stating the delivery time in the contract will prevent future disputes.

6.2. Contractor's Default Conditions

Even though the delivery deadline has arrived:

• The work is unfinished

• Even if completed, if not delivered,

The contractor defaults. As a rule, the employer can put the contractor in default by:

• giving a notice and a deadline,

• By informing them that they will exercise their necessary rights if the individual does not surrender within this period,

It is suitable.

Especially in "time-bound projects" (e.g., wedding hall renovations, trade show stands, seasonal hotel renovations), delays can have severe consequences for the client, to the point where "the project will not serve its purpose if it is completed late." In this case, the client:

• Termination of the contract without granting additional time,

• Compensation for damages resulting from delay

may have the right.

6.3. Employer's Optional Rights in Case of Delivery Delay

If the contractor defaults, the employer shall, in accordance with the general terms of the contract:

1. Demand for performance and claim for compensation for delay,

2. Termination of contract and claim for positive/negative damages,

3. In some cases, demanding compensation instead of performance ,

has the right.

Commonly encountered solutions in practice, specific to contracts for work:

• The employer contracting out the work to a third party and requesting the difference in cost from the contractor

• He/she is entitled to compensation for lost rent, lost business, and lost customers incurred during the delay period

• Accepting late delivery and requesting a discount on the price or a penalty for the delay.

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7. Contractual Mechanisms for the Protection of Employers

Relying solely on legal provisions is often insufficient for employers. Therefore, specific clauses in the contract to protect the employer is of great importance.

7.1. Penalty Clause (Delay Penalty, Defect Penalty)

The contract;

• Daily/monthly late payment penalty.

• Fixed compensation/penalty clause in case of defective performance .

The burden of responsibility disciplines the contractor.

Example scenarios:

• "A penalty of %... of the contract price will be paid for each calendar day the delivery is delayed."

• “In the event of a defect in the work, the client may demand a penalty equal to %… of the price of the defective part; this right does not prevent the client from exercising other optional rights against the defect.”

here that the penalty clause excessive , and that the judge may grant a reduction if necessary.

7.2. Warranty Period and Maintenance and Repair Obligations

Especially in fields such as construction, plumbing, machinery, and software:

• Warranty period,

• Free maintenance, repair, spare parts, and updates are

It must be explicitly stated in the contract.

The warranty period cannot shorten the statutory limitations for defective performance ; it generally provides additional protection. However, the contract must be carefully drafted.

7.3. Letter of Guarantee, Deduction and Reserve Requirement

Other tools that can be used to protect the business owner:

• Obtaining a bank guarantee letter

• A certain percentage of the guarantee deposit will be deducted from the payments (for example, a 5-10% deduction, which will be refunded after final acceptance).

• Payment for specific parts of the work conditional upon written confirmation of delivery that is complete and free from defects .

This way, the employer has a de facto guarantee in case of defective performance or delayed delivery

7.4. Technical Specifications and Project Appendices

The most significant source of defective performance is often vague contract texts. Vague phrases such as "turnkey kitchen" or "standard quality materials" are a guarantee of disputes.

Because:

• Detailed technical specifications.

• Project, drawing, 3D visualizations,

• Brand, model, quality class of the materials to be used,

• Installation diagrams, software function lists

It should be included as an annex to the contract and signed by both parties. This will create a concrete framework to be referenced in determining defective performance.

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8. Contracts for Work and Additional Protection in Consumer Cases

A contract for work can sometimes of a consumer transaction . For example:

• Having a kitchen built in a citizen's house,

• Renovating his bathroom,

• Housing handover, renovation contracts,

It is often considered a consumer transaction in terms of consumer law as well. In this case:

• In addition to the provisions of the Turkish Code of Obligations, there are special regulations to protect consumers.

• Special rights granted to the consumer in case of defective performance ,

• Consumer arbitration board and consumer court options

it takes effect.

In these cases , it is advantageous for the business owner to assert their rights not only under the Turkish Code of Obligations but also under consumer legislation , particularly regarding defects, statute of limitations, proof, and optional rights

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9. Points to Consider in the Application of Contracts for Works

From the employer's perspective:

1. The contract must be in writing

   • Verbal agreements create serious problems in proving defective performance and delivery deadlines.

2. The delivery date must be clearly defined

   • Instead of saying "as soon as possible," specify the day/month/year.

3. Detailed preparation of the technical specifications

   • The material to be used, color, dimensions, capacity, and function must be clearly stated.

4. Provisional and final acceptance certificates

   • Especially in construction and similar projects, the date of delivery and acceptance must be documented.

5. Detection and reporting of defects

   • As soon as the wrongdoing is noticed, evidence such as photographs, official reports, written warnings, and expert opinions should be collected.

6. Statute of limitations tracking

   • It should be planned in advance within what timeframe and what legal avenues can be pursued following the delivery date.

From the contractor's perspective, in order to ensure the sustainability of disputes regarding defective performance and delivery delays:

• To conduct the business process transparently,

• Material changes must be made with written approval

• To conduct pre-delivery testing/pre-acceptance processes,

• To keep the business owner informed on technical matters in a timely manner

It is important.

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10. Frequently Asked Questions: Defective Performance and Delivery Time in Construction Contracts

Question 1: What is defective performance in a contract for work?
Defective performance in a contract for work occurs when the contractor's work does not conform to the technical specifications, quality, and intended use agreed upon in the contract, or when the work contains deficiencies, defects, or flaws. For example, using lower quality materials than agreed upon or manufacturing contrary to the project dimensions is considered defective performance.

Question 2: What are the employer's rights in case of defective performance?
Depending on the nature of the defect, the employer may:

• They can withdraw from the contract by refusing to accept the work

• You can request a discount on the price proportional to the defect

• You can request that the defect be rectified (repaired) free of charge

• Where appropriate, you may request a re-creation of the work

• He/she can claim compensation for damages resulting from the defect.

These rights are exercised subject to the conditions stipulated in the law, as well as the notification and statute of limitations periods.

Question 3: What are the employer's rights if the delivery deadline is missed?
If the delivery deadline is missed, the contractor is in default. The employer has the following rights:

• You can demand performance of the obligation and compensation for damages resulting from the delay

• If the conditions are met, the customer can withdraw from the contract and demand a refund of the amount paid and compensation for any damages incurred

• You can have the work done by a third party and then ask the contractor for the difference

• The seller may accept the delay and invoke any penalty clauses or price reduction provisions in the contract.

Question 4: What should I do if a defect is discovered after the work is delivered?
If a defect is discovered after delivery, the client should:

• The work should be examined immediately

• of any defects discovered in writing (preferably by formal notice) without delay.
  Hidden defects must be reported as soon as they are discovered; otherwise, the employer may be deemed to have accepted the work with its defects. Statute of limitations periods must also be taken into account.

Question 5: Do consumer rights also apply to contracts for work?
the contract for work is considered a consumer transaction (for example, if the client is a consumer in a housing, kitchen, or bathroom renovation), then in addition to the provisions of the Turkish Code of Obligations, special regulations protecting the consumer also apply. In this case, the client additional rights and more favorable statutes of limitations/recourse procedures .

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11. Conclusion: Keys to Protecting the Employer in Contracts for Work

In construction contracts, defective performance and breaches of delivery deadlines create processes that are damaging to both the client and the contractor, and carry high financial and legal risks.

In order to effectively protect the business owner:

• The contract must be properly established from the outset,

• Delivery time, technical specifications, penalty clauses, warranties and guarantees must be clearly defined

• The delivery, acceptance, defect detection, and notification processes must be carried out meticulously

• Statute of limitations and evidence planning should be done from the outset

It is vitally important.

From the contractor's perspective, in addition to faultless and timely performance, conducting the work transparently and keeping records will be the most important safeguard against future disputes.

Ultimately, defective performance in construction contracts, delivery deadlines, and client protectionconstitute a complex area requiring comprehensive consideration within the framework of the Turkish Code of Obligations, freedom of contract, and the principle of good faith. Managing this area effectively yields direct economic benefits for both the client and the lawyer.