A full house rewire is one of the bigger jobs you’ll ever do to your home — and one of the most important. Get it right and your electrics will quietly serve you for the next 30 to 40 years. Get it wrong, or put it off too long, and you can end up dealing with everything from constant tripping and overheating sockets to a real fire risk. If you live in Havant or the surrounding villages and you’ve been wondering whether your home is due for a rewire — and what it might cost in 2026 — this guide is for you.
Below, we’ll walk through what a rewire actually involves, the signs your property needs one, current price ranges in the Havant area, what makes one quote different from another, and how to choose the right local electrician for the job.
What Is a House Rewire?
A full house rewire means replacing every cable, switch, socket, light fitting and consumer unit (fuse board) in your property with new ones that meet today’s wiring regulations — the 18th Edition. In a typical Havant home that includes the ring main feeding your sockets, the lighting circuits, the consumer unit, the smoke alarm wiring, the cooker and shower circuits, and any outdoor or garage circuits.
It’s not a job that needs doing often. Modern PVC-sheathed cabling has a working life of around 25 to 40 years, while the rubber-sheathed cable found in many 1950s and 1960s Havant homes is usually well past its safe lifespan by now. A rewire isn’t just a cosmetic upgrade — it’s a fundamental safety improvement that protects everyone living under your roof.
Signs Your Havant Home Might Need a Rewire
Some of the most common red flags we see in older Leigh Park, Bedhampton and Emsworth homes include: a fuse board with old rewireable fuses rather than modern circuit breakers; sockets that feel warm or scorched; brown round-pin sockets still in place; lights that flicker when other appliances kick in; circuits that trip repeatedly; or visible black rubber, lead or fabric-sheathed cables in lofts and under floorboards. If any of these sound familiar, it’s worth getting an electrical condition report (EICR) carried out so you know exactly where you stand.
Average House Rewire Costs in Havant (2026)
As a guide, these are the price ranges we’re currently seeing for full house rewires in the Havant and wider PO9 area in 2026. They assume an empty or occupied home with normal access, standard finishes and a modern dual-RCD consumer unit fitted at the end.
Two-bedroom flat or small terrace: £3,200 – £4,500
Three-bedroom semi-detached: £4,500 – £6,500
Four-bedroom detached: £6,500 – £9,000
Five-bedroom or larger property: £9,000 – £13,000+
These are total project prices including labour, materials, certification and notification to Building Control. They don’t include making good plaster, redecorating or upgrading the incoming supply. For an exact figure on your own home, a written quote after a proper site visit will always be more reliable than any online calculator.
What Affects the Cost of a Rewire?
Two superficially similar Havant houses can produce quite different rewire quotes, and there are usually clear reasons why. The biggest factors include the size and age of the property, the number of sockets and lighting points you want (people generally want far more than they used to), and how easy access is. Solid concrete floors, lath-and-plaster walls and finished loft conversions can all add complexity and time.
Other things that can push the price up include three-phase supplies for larger properties, additional circuits for EV chargers or hot tubs, outdoor lighting and garden power, smart lighting systems, network cabling, and special requirements like underfloor heating. Going for premium brassware or designer switches and sockets can also add a surprising amount — easily several hundred pounds in a typical family home.
Full Rewire or Partial Rewire?
Not every Havant home needs a complete rewire. If you’ve already had part of the property rewired in the last 20 years — a kitchen extension, say, or a loft conversion — a partial rewire focusing only on the older sections is often the most sensible route. A partial rewire typically costs 40–60% of a full rewire, depending on how much of the house is being touched.
Where partial rewires get tricky is the join between old and new cabling. Mixing materials and circuit designs needs to be done carefully so the whole installation still meets current regulations. A good electrician will be honest with you about whether a partial rewire is really worth it, or whether you’re better off biting the bullet and doing the whole house.
How Long Does a House Rewire Take?
For a standard three-bedroom Havant semi, you can usually expect a full rewire to take five to ten working days on site. Larger homes might run to two or three weeks, especially if there’s a lot of solid wall or limited access. We typically split the job into two phases: the “first fix”, where new cables are pulled into walls, ceilings and floors with the wall finishes opened up, and the “second fix” once any plastering is done, where sockets, switches and the new consumer unit are fitted and the system is tested and certified.
Most people stay in their homes during a rewire, but expect a few days of disruption — dust, lifted floorboards, intermittent power — particularly during first fix. Many Havant families plan rewires around the school holidays or combine them with a wider renovation so the upheaval only happens once.
Certificates and Building Control
Any full or partial rewire in Havant is “notifiable work” under Part P of the Building Regulations. That means it has to be either certified by a qualified electrician who is a member of a competent person scheme (such as NICEIC), or signed off directly by Building Control. As your electrician, we handle the notification on your behalf and issue you an Electrical Installation Certificate plus a Building Regulations Compliance Certificate. Both are important documents to keep — especially when you come to sell.
Choosing the Right Electrician in Havant
Price matters, but for a job this big it shouldn’t be the only thing you go on. Look for a local Havant or Portsmouth-based electrician who is registered with NICEIC or NAPIT, fully insured, and willing to provide a clear, written, itemised quote. Ask whether the price includes certification and notification, what the payment schedule is, and what happens if extra work is uncovered once the walls are opened up. Local reviews — on Google, Checkatrade or recommendations from neighbours — are worth their weight in gold here.
At Portsmouth Electrician, every rewire we do across Havant comes with a fixed written quote, a clear day-by-day schedule, full NICEIC certification and our straightforward workmanship guarantee. We’ve rewired homes in everything from period properties in Old Havant to 1970s estates in Leigh Park — so the chances are very good we’ve worked on a house just like yours.
Do You Need to Move Out During the Works?
One of the most common questions we get from Havant homeowners is whether they need to move out during a rewire. The short answer is usually no — but it depends on your tolerance for disruption. Power will be off in different parts of the house at different times, dust is inevitable during first fix, and floorboards will be lifted. Most families stay in their homes throughout, but if you have young children, work from home or have pets that are sensitive to upheaval, planning a few nights elsewhere during the noisiest phases can be wise. We can schedule the work so that bedrooms, kitchen or living room get priority and stay usable, depending on what matters most to you.
Should You Combine a Rewire With Other Work?
If you’re already planning a kitchen refit, an extension or a major redecoration, it almost always makes sense to fold the rewire into the same window. Walls are already coming down or being re-skimmed, carpets are up, and the upheaval is happening anyway, so the marginal disruption from a rewire is much smaller. Many Havant homeowners we work with use a rewire as the trigger to upgrade lighting design, add USB-C sockets where they really need them, or run cables for future plans like an EV charger, smart heating or a home office. Bundling these jobs together saves both money and a second round of hassle further down the line.
Ready to Get a Quote?
If you’re thinking about a rewire and would like a proper, no-pressure quote based on your specific Havant property, we’d love to help. Get in touch today and we’ll arrange a free site visit, talk you through your options, and give you a clear written quote within a few working days. No upselling, no surprises — just an honest assessment of what your home needs and what it will cost.