TL;DR: A full villa rewire in Dubai runs roughly AED 15,000 to 50,000 on a three or four bedroom house, or AED 100 to 250 per square metre, and takes 2 to 4 weeks on site. It comes due at around 15 to 20 years, earlier if the cabling is aluminium, the board has no RCD, or sockets are discolouring.
When a Dubai villa is actually due for a rewire
Age is the first filter, not the verdict. The houses where we open a wall and find something worth changing are mostly pre-2010 handovers: the first Arabian Ranches phases, older Meadows and Springs clusters, Jumeirah and Umm Suqeim stock from the 1990s, parts of Mirdif and Al Barsha. Past 15 to 20 years of service in this climate, an installation earns a test before it earns a budget.
The symptoms that move a rewire from "someday" to "this year":
- Aluminium conductors anywhere in the installation. Common in older UAE housing stock, and the single strongest argument for replacement.
- Breakers that trip on a load the circuit carried fine two summers ago, particularly on kitchen and AC circuits.
- A brown halo or softened plastic around a socket faceplate, or a plug that comes out warm.
- The smell of hot plastic near a board or an accessory. Stop using that circuit and call someone the same day.
- Lights dipping when a compressor or the pool pump starts. That is volt drop on undersized or degraded cable, not a lamp problem.
- A distribution board with MCBs but no RCD or ELCB. Older villas often have overcurrent protection and no earth-fault protection at all.
- Earthing that ends at a rod in the garden with no main equipotential bonding back to the incoming water pipework.
Before you accept a quote, ask for numbers rather than opinions. An insulation resistance test on every circuit, an earth fault loop impedance reading at the furthest point, and an RCD trip-time test give you a page of figures that either condemns the installation or clears it. A 20-year-old copper installation that tests clean, on circuits that suit how the house is actually used, can run for years more with only a board upgrade. We have told owners exactly that on site and lost the larger scope, which is the correct outcome when the cable is sound.
Why wiring in Dubai ages faster than the datasheet allows for
Standard PVC-insulated cable is designed around a 70 °C conductor operating temperature, and the design assumptions behind that figure come from a temperate ambient. Inside a west-facing external wall in Dubai in July, the cavity around the conduit sits well above what a European calculation would assume, with figures in the 50 to 60 °C region reported for wall build-ups here. The cable spends its life much closer to its rated ceiling than the manufacturer's curve assumes, well before outright failure, and PVC hardens and cracks faster at the top of that range.
Humidity does the second half of the damage. Coastal properties on Palm Jumeirah, Jumeirah, Umm Suqeim and Bluewaters sit in 60 to 80 per cent relative humidity for months, and moisture finds terminations before it finds cable. Screwed connections oxidise, resistance at the joint creeps up, the joint heats, and the heat accelerates everything around it. Aluminium suffers this far worse than copper, because it also creeps under thermal cycling: it expands, the screw stays put, and the termination slowly loosens itself over a decade of daily heating and cooling.
Load is the third factor and the one that catches owners out. A Dubai villa runs air conditioning for eight or nine months, which turns what a designer would call an intermittent domestic load into something close to continuous. Add an induction hob at 7 to 11 kW, an EV charger at 7.4 kW, and a pool pump, and a distribution board sized for a 2006 household is carrying a 2026 household. The cable does not have to be faulty for the installation to be inadequate.
What a villa rewire costs in Dubai
Treat every figure here as a working market band at the time of publication, not a DOMECO rate card. We price a specific villa after a site visit and a look at the existing board.
On a three or four bedroom villa, a complete rewire generally lands between AED 15,000 and 50,000. Expressed per square metre that is AED 100 to 250, and the two figures reconcile at roughly 150 to 250 square metres of treated area. Larger houses follow the per-metre rate rather than the headline total, so a 400 square metre villa sits closer to AED 40,000 to 100,000, and a five or six bedroom property with a full lighting design, external and pool circuits, and multiple sub-boards can reach AED 80,000 to 150,000.
The same number builds from the other direction. Lighting points run around AED 150 to 350 each installed, sockets and switches AED 120 to 280, and a new distribution board supplied and fitted AED 1,500 to 5,000. A four bedroom villa with 60 to 90 lighting points and 60 to 80 socket outlets therefore adds up to roughly AED 18,000 to 59,000 before making good. Two methods, one answer, which is how a quotation should behave.
Rewiring an occupied house costs 20 to 40 per cent more per point than first-fix cabling in a new build, and that gap is not margin. Cable in a new build goes into open block work before plaster. Cable in a rewire goes into chased channels cut through finished walls, around existing joinery, in a house where somebody's furniture has to move twice.
Where the honest advice runs against a bigger invoice: if the villa is a rental, the test results are clean, and the copper is sound, a new board with an RCBO per circuit plus rewiring the socket and kitchen circuits often delivers most of the safety benefit for a third of the money. Full strip-outs earn their keep on properties you intend to hold, or where aluminium is present. The wider budget picture for a whole-house project sits in the villas and apartments we have completed, which is a more useful reference than a per-point rate.
Approvals: DEWA, the contractor's licence, and the community NOC
Electrical work in Dubai is not something any handyman can legally carry out on a connected supply. The contractor has to hold a valid trade licence covering electromechanical or electrical works and be enrolled with DEWA to submit and sign off installation work. Ask for the licence copy and the DEWA registration before anything else. An unregistered electrician cannot get the installation energised or inspected, which means you pay twice: once for the work, once for a licensed firm to redo the parts that fail inspection.
Where the rewire changes the connected load, and most do, the process runs through DEWA properly. A load calculation and single-line diagram are prepared by the contractor or a registered consultant, submitted with the title deed or Ejari and the owner's ID, and approved before the installation is energised. Plan on 5 to 20 working days for the approval step, followed by an inspection on site. If the new load exceeds the property's contracted capacity, you are into a supply upgrade, which is a separate application with its own cost and its own clock.
The community sits on top of that. Emaar, Nakheel, Meraas and the smaller developers each issue their own NOC for works inside a villa, and the turnaround differs by developer rather than by the size of your job. Palm Jumeirah answers to Trakhees rather than Dubai Municipality. Mainland villas go to Dubai Municipality, and properties inside free zone jurisdictions may answer to DDA. Rented villas need the landlord's written consent before any of it starts. The mechanics per developer are set out in our guide to community NOCs and how long each one takes.
The practical point: DEWA approval, the community NOC and the material order can all run in parallel while the house is still being lived in. Contractors who run them one after another add four to six weeks to a programme for nothing.
Programme, and whether you can stay in the house
A full villa rewire is 2 to 4 weeks of site time on a three or four bedroom property, assuming the approvals are already in hand. Zone by zone, allowing the family to keep half the house, runs 5 to 7 days per zone plus a day either side for moving furniture and protecting floors. Neither figure includes plastering, priming and painting after the chases are filled, which is a separate trade with its own drying time.
Whether you can live in it depends on the method, and anyone who answers that with a flat yes or no has not looked at your board. Zone-by-zone work usually lets you stay: one part of the villa loses power at a time, the kitchen and one bathroom stay live, and the crew works around you at a slower pace and slightly higher cost. A full replacement with a board changeover means a total outage of at least a day, no air conditioning, no cooking, no water heating, and a house full of chase dust. In July, with children in the house, that is not a stay-put job.
Two calendar items belong in the programme. The UAE midday break applies to outdoor and unshaded work from 15 June to 15 September, 12:30 to 15:00, which affects external circuits, pool plant and garden lighting. And material lead times move: standard cable and accessories are stocked, but a specific board configuration or an imported switch range can take two to four weeks to land.
Our contracts fix the programme and the price at signing, and we pay a percentage for every day of delay we cause, which is the only version of a deadline that means anything once a crew is on site.
The costs the electrical quotation leaves out
Making good is the big one. Chasing walls for new cable routes leaves you with a house that needs plastering, priming and repainting, and that is not inside a per-point electrical rate. Budget AED 8,000 to 15,000 on a standard villa for a competent plaster and paint finish, and AED 20,000 to 30,000 where the walls carry Venetian plaster, wallpaper, microcement or a specified decorative finish that has to be matched or replaced across whole elevations.
Then the items that surface once the board comes off the wall. Earthing and bonding on older villas frequently needs rebuilding rather than reconnecting, because the original installation predates current practice. A DEWA capacity upgrade brings its own application fee, cable and possibly a new metering position. Waste removal is real money on a rewire: old cable, broken plaster and packaging fill skips faster than owners expect, and tipping is chargeable. If the family moves out for the outage weeks, that is short-let accommodation on top.
One more that catches people. New lighting points rarely land exactly where the old fittings were, so the existing fittings often no longer suit the new layout. Owners who budgeted a rewire find themselves buying light fittings, which is a decorative purchase hiding inside an electrical job. Decide the lighting layout before the chases are cut, not after.
While the walls are open is also the only sensible moment to add data cabling, shutter feeds or control wiring, since the marginal cost then is a fraction of retrofitting later. That side of the job is covered separately in our piece on planning smart home cabling during a renovation, and it is worth reading before you sign off a rewire drawing.
Choosing the contractor and what to ask before signing
Six questions separate a quotation you can act on from a number on a WhatsApp message:
- 1. Show me the trade licence and the DEWA registration. Photograph both. A firm that hesitates here has answered the question.
- 2. Who prepares and signs the load calculation and single-line diagram, and is that inside your price or extra?
- 3. Is making good included? Get plaster, primer and paint written into the scope with a stated finish, or written explicitly out of it so you can price it separately.
- 4. RCBO per circuit, or one RCD across the board? A single RCD is cheaper and means one earth fault kills half the house. Per-circuit protection costs a few hundred dirhams more and behaves properly.
- 5. What test documentation do I get at handover? You want a schedule with insulation resistance, loop impedance and RCD trip times per circuit, signed, plus the as-built board schedule.
- 6. What is the payment schedule, what is retained, and what happens if the programme slips?
Compare quotations on the same point count, not the same page count. Two prices AED 12,000 apart are usually pricing different numbers of outlets, different cable sizes, or one of them is quietly leaving the plastering to you. For context: our own capital renovation rate, a full strip-and-rebuild covering electrical, plumbing, flooring and finishes, starts at AED 3,000 per square metre, fixed by contract with no additions after work begins, and it carries a one year warranty on the workmanship. That is a different scope and a different rate from the standalone AED 100 to 250 per square metre rewiring band quoted earlier in this guide. If you want a rewire priced on its own against a specific villa, send the address and a photo of the existing board through our contact page and we will tell you what the house is actually carrying.
FAQ
How long does rewiring a villa in Dubai take?
Two to four weeks of site time on a typical three or four bedroom villa, or five to seven days per zone if the work is phased so the family can stay. Add plastering and painting afterwards, which is a separate trade. DEWA approval of five to twenty working days runs before the crew arrives, not during.
Can I live in the villa while it is being rewired?
Sometimes. Zone-by-zone work leaves part of the house powered, so staying is usually workable, at a slower pace and a higher cost. A full rewire with a board changeover means a complete outage of a day or more, no air conditioning and heavy dust, which most families choose not to sit through in summer. Decide this before signing, because it changes the method and the price.
What is the difference between a DEWA-registered electrician and any other one?
A DEWA-registered contractor can submit the load calculation, get the installation approved and have it inspected and energised legally. An unregistered electrician cannot do any of that, so the work has no approval trail, no inspection and no standing if an insurer asks questions after a fire. The saving on labour is small and the exposure is not.
Why does aluminium wiring need replacing?
Aluminium expands and contracts more than copper under thermal cycling and creeps under the pressure of a terminal screw, so connections loosen over years of daily heating and cooling. A loose termination has resistance, resistance produces heat, and heat at a junction box is how fires start. Dubai's wall temperatures and coastal humidity accelerate both the creep and the oxidation.
Do breakers still trip after a rewire, and is that normal?
Occasional tripping in the first weeks is usually an appliance with earth leakage that the old board simply had no way of detecting, most often a water heater, a washing machine or an outdoor circuit taking moisture. A competent contractor isolates it circuit by circuit and shows you the reading. Repeated tripping on the same circuit with no identified appliance is a defect, and it belongs to the contractor under the workmanship warranty.