Site delays: how to prevent them and protect yourself

Problem: jobs that overrun by days or weeks. Extra costs nobody planned for and clients who lose trust.

Solution: identify the three recurring causes (crews, planning, materials) and build a prevention system with concrete tools.

Result: deadlines met, margin protected and a work plan that becomes a commercial advantage.

Almost always, where you lose money is on site

A window and door specialist in Northern Italy told me something I have been hearing for years: "Almost always, where you lose money in our industry is on site." Not in the office, not in marketing. On site. Because every day of delay costs. One day of delay with a 3-person crew costs between 1000 € and 1300 €. Multiply that by the delays over a full year and you see where the margins go.

The point is that delays never come from a single huge problem. They come from many small things that add up. After working with dozens of construction businesses, I have identified three causes that keep coming back.

Cause 1: crews that slip out of control

This is the most common cause. Five out of ten clients cite it as their main problem.

"I made a mistake, I did not estimate the hours properly," a client told us during a consultation. Another business owner added: "I had planned two and a half days with two people, instead three went." Two people for two and a half days is 40 hours. Three people for the same time is 60. That is 20 extra hours nobody had put in the quote.

The problem is that without tracking, you only discover these overruns at month-end. When the money is already gone.

What to do:

• Track arrival and departure times from the site, not just "worked" hours
• Compare actual hours and quoted hours every week, job by job
• If a crew works away from base, include travel time in the quote as a real cost

Cause 2: zero planning, zero procedures

Four out of ten clients do not have a written work plan. The job starts on gut feeling.

In a training session we hit the sore spot: "Right now your habit is to put no technical data sheet in the work plan at all, it is blank. This is a big problem." If the work plan is empty, whoever goes to site does not know what to install, how to install it, or to what specifications. The result is that they call you, stop, wait for answers. Time wasted.

Another classic mistake: orders placed without a signature. "We cannot place orders without a signature, otherwise we always end up out of pocket." You order the material. The client changes their mind. You are left with stock in the warehouse that nobody needs and a stalled job.

What to do:

• Every job must have a written work plan with dates, activities, people responsible and technical data sheets attached
• No order is placed without a signed confirmation including all specifications (colour, measurements, accessories)
• Before work begins, run a verification checklist: material ordered, material received, site ready, other trades coordinated

Cause 3: materials that do not arrive and unreliable suppliers

A supplier delivers 10 days late. No advance warning, no backup ready. The site stands still, you have to move the crew to another job or keep them twiddling their thumbs. And when the material finally arrives, the schedule has blown up and you have to reorganise everything.

Then there are the cases where material is simply missing. One company did not have its warehouse organised for irrigation supplies and had to subcontract work it could have done in-house. A direct extra cost on the margin of every job.

What to do:

• Keep at least two suppliers for every critical material category
• Verify delivery 48 hours before work begins, not on the day itself
• If a supplier goes behind your back once, that is one time too many. Switch

The commercial advantage nobody uses

When you visit the client, try asking: "Have they given you a detailed work plan, day by day, with firm deadlines and penalties for delays, or did they say 'it will take roughly so many days, we will see'?"

In most cases, your competitors give no written plan at all. You do. The client does not only choose the lowest price. They choose whoever gives them certainty. A detailed work plan with delay penalties is a concrete guarantee that sets you apart from everyone else.

Pre-site checklist

Before opening every job, verify these points:

• Written work plan with dates and daily activities
• Technical data sheets attached for every phase
• Order confirmation signed by the client with all specifications
• Material ordered and delivery date confirmed
• Material arrival verified 48 hours before start
• Coordination with other trades (dates, access, work sequence)
• Crew assigned with quoted hours communicated
• Backup supplier identified for critical materials

BAU Gest

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Net margin24,2%

Active jobs8

Hours deviation+12%

Protecting yourself contractually

Prevention reduces delays but does not eliminate them entirely. That is why you also need contractual protection.

• Include start and end dates in the contract
• Set clear penalties for delays caused by the client (site not ready, late decisions)
• Specify that variations during the work shift the delivery date
• Document everything: site photos, confirmation emails, daily reports

If you ever need to contest a delay that was not your fault, you will have the evidence. Without documentation, it is just your word against the client's.

What to do this week

First step: take the last job that overran. Write down the cause of the delay. Crew? Material? Planning? In most cases, the cause repeats.

Second step: for the next job, use the checklist above. All of it. It takes 20 minutes before you start, but saves you days afterwards.

Third step: if you want to understand where the gaps are in your site management, book 30 minutes with us. We analyse the last 3-4 jobs together and find the pattern. Often, changing two or three things is enough to recover days of work every month.