One of the most tempting ideas in property refurbishment is this: do some of the work yourself, save the labour cost, and keep more of the profit.
On the face of it, that sounds perfectly sensible.
And sometimes, in a narrow sense, it is sensible.
But very often it is not as straightforward as that.
In fact, one of the more common mistakes investors make is to assume that saving money on labour automatically means making more money on the project. Quite often it doesn’t. Quite often it just means the cost reappears somewhere else, in a different form.
That is the trap.
The project looks cheaper in one column, but more expensive in two or three others that have not really been added up properly.
The first problem is time.
Unless you are genuinely good at the job you are attempting, and reasonably quick at it, you will almost certainly take longer than someone who does that same job day in, day out.
That matters more than people sometimes realise.
A decorator might do in a day what takes you an entire weekend. Or two weekends. Or a weekend, three evenings and a noticeably worse mood. And while all that is going on, the project is still dragging on. The property is not yet ready to let, or sell, or refinance. Your capital is still tied up. Finance costs are still ticking away. And the whole thing is taking longer to get to the point where it starts producing a result.
So yes, you may have saved the decorator’s bill.
But have you actually made more money overall?
That is the better question.
The second problem is quality.
This is not meant unkindly. It is just common sense. Work done by someone learning as they go is rarely as good as work done by someone who has done the same thing hundreds of times before.
Even if the result looks acceptable from a distance, if it takes longer than it should, slows down the next stage, needs touching up, or has to be redone, the saving starts to look rather less impressive.
And that is before you factor in the irritation of having to look at a job you know is not quite right.
The third problem is energy.
Refurbishment projects already take a fair bit out of you. There is planning, organising, chasing trades, comparing quotes, solving problems, keeping an eye on costs, and making decisions as things change. Even if you are not on site every day, there is still a fair amount of mental load in trying to keep everything moving.
Once you add physical work on top of that, especially if you are squeezing it in around a job, a family, or other responsibilities, you start using up energy that might be better spent somewhere else.
And tired people do not always make the best decisions.
That is true in most walks of life, and refurbishment is no exception.
The fourth problem is one people often overlook completely, which is the opportunity cost of your time.
Your role on a refurb is not necessarily to be on the tools.
Your role is to make sure the right jobs get done, by the right people, in the right order, at the right time, for the right money.
That is where most investors add the most value.
You are the organiser. The person keeping the project moving. The one noticing that the plasterer cannot sensibly come until the electrician has finished, or that the kitchen fitter ought to look at the layout before anything is ordered, or that the property needs to be ready for the valuer by a particular point if the refinance is to happen smoothly.
That kind of thinking adds value.
Spending a weekend with a paintbrush may not.
Now, none of this means you should never do anything yourself.
There are jobs which may make perfect sense to take on. Clearing out rubbish. Pulling up old carpets. Basic stripping out. General labouring. Simple, low-skill jobs where your involvement genuinely saves money and does not slow the project down.
And of course, some investors are naturally practical. If that is you, fair enough. You may well be able to do certain jobs properly and quickly, in which case the calculation changes.
But for most investors, most of the time, the honest position is that being on the tools feels like saving money more often than it actually is saving money.
That is particularly true when the project timetable matters, and it nearly always does.
A refurb that finishes sooner is often a more profitable refurb, even if one or two of the bills looked higher on paper.
That is the bit people miss.
They focus on the visible saving and not enough on the hidden cost.
They save £800 here, but lose three weeks there.
They avoid paying a tradesperson, but then delay the rent, the sale, the refinance, or the next project.
They feel productive because they are busy, but being busy is not quite the same thing as being commercially effective.
So what goes wrong?
Usually, it is not that doing something yourself was impossible.
It is that the investor never really costed the decision properly.
They did not allow for the extra time.
They did not allow for the drag on the rest of the project.
They did not allow for the possibility that a professional would do the same job faster, better, and with less knock-on disruption.
And they did not think carefully enough about what their own role ought to be.
So if you are tempted to do work yourself on a refurb, the real question is not simply, “Can I do this?”
The better questions are:
Can I do it properly?
Can I do it quickly enough?
And is this really the best use of my time?
Sometimes the answer will be yes.
Quite often, it won’t.
And if it won’t, then paying the right person to do the job may not be an extra cost at all.
It may simply be the more profitable decision.
Here’s to successful property renovating.
Peter Jones (ex) Chartered Surveyor, author and property investor
www.thepropertyteacher.co.uk
By the way, I’ve completely rewritten and updated my course for 2026, The Successful Property Renovator’s Workshop — a comprehensive guide to renovating properties properly and profitably, based on my own experience across well over 150 projects over thirty years. For more details please go to: https://thepropertyteacher.co.uk/the-successful-property-renovators-workshop-2/