The best ways to save on a renovation are simplifying finishes, keeping elements that are still sound, choosing standard formats, phasing with services first and asking for alternatives line by line. The worst are leaving old services behind new finishes, cutting waterproofing or levelling, using installers who are not authorised, paying without invoices and accepting vague quotes. A good saving reduces cost today without creating work tomorrow.
Which savings tend to work well?
- Simpler tile formats laid straight, instead of large formats or complex patterns.
- Tiling wet zones only and using suitable paint elsewhere in the bathroom.
- Keeping sound kitchen carcasses and changing fronts and worktop.
- Refurbishing internal doors when the frames are in good condition.
- Flat ceilings instead of lighting coves, with cables left ready for later.
- A mid-range tap and sanitaryware line with standard connections, easy to upgrade.
- Phasing with all hidden work in the first phase.
All of these reduce supply or labour lines without affecting the layers beneath. For kitchen-specific options, see kitchen renovation cost.
Which savings tend to backfire?
- Leaving original pipes and wiring behind new tiles and paint.
- Reducing waterproofing in showers and on terraces.
- Skipping levelling before a new floor, especially large formats.
- Using unauthorised electricians or gas fitters, which can create safety problems and paperwork issues.
- Paying without an invoice, which removes your evidence and protection.
- Accepting a lump-sum quote because it looks lower, then negotiating every change.
The common thread: each saves money now by moving risk to later, when fixing it costs more. Our page on floors and plasterboard cost shows why levelling is rarely a good place to cut.
What about buying materials yourself?
It can be a good saving when you have a clear preference and a reliable source. It becomes a bad one when quantities are wrong, deliveries arrive late and stop the work, or a defective item has to be replaced and nobody is responsible for the delay. If you supply materials, agree delivery dates with the builder and include a waste allowance.
There is also a VAT angle: the AEAT conditions for the reduced rate on home renovation include a limit on materials supplied by the contractor, so changing who supplies materials changes that share. Check with your adviser; see VAT and grants.
Is doing some work yourself a good idea?
Owners sometimes plan to paint or assemble furniture themselves. Simple tasks after handover can be reasonable. Taking on tasks in the middle of the job is riskier: if your part is late or needs redoing, the trades that follow are delayed, and the guarantee on the affected work becomes unclear. We do not publish DIY instructions, but if you want to keep some tasks for yourself, tell us before the quote so the lines and the schedule reflect it.
How do you find the right savings in your quote?
Go through the itemised quote and mark each line as hidden work, finishes or extras. Protect the hidden work. For finishes and extras, ask for priced alternatives. Then decide with the figures in front of you. This takes the guesswork out and keeps quality decisions with you. Our guide on adjusting a budget goes through the method in detail, and we are happy to price alternatives on any line of our quotes.
Does the timing of the work affect savings?
It can. A flexible start and finish date lets the work follow its natural sequence, without trades overlapping or materials being rushed. A fixed deadline, such as the start of the letting season, can add cost because the schedule has less room. If your dates are flexible, say so: it gives the builder room to plan the job efficiently.
Bundling related work also helps. Renewing the services, tiling the bathroom and replacing the floors in one coordinated job shares the strip-out, protection and debris removal across all of them. Doing the same tasks in separate jobs over several years repeats those costs each time.
Do cheaper materials always mean lower quality?
Not necessarily. Within any category, there are standard products that perform well and premium products whose extra cost lies mostly in design or brand. A standard porcelain tile, correctly laid on a level base, can outlast an expensive one laid badly. The installation and the preparation underneath often matter more than the price of the material.
Where cheaper materials do cause problems is when they are unsuitable for the use — a floor not rated for wet areas, a board not meant for bathrooms, a paint not designed for exterior walls. Ask the builder to confirm that each material is appropriate for where it goes. A good quote states the type and use of each material, so substitutions are visible.
Official sources
Bauman Raymond Attila · Presupuesto Reforma · Avenida Antonio Belón 3, Marbella. Last reviewed: 05/11/2026.
