Okay, so you’ve started asking around about rewiring your house. Maybe your breakers keep tripping. Maybe you’ve got two-prong outlets in every room. Maybe a home inspector handed you a report and circled “outdated wiring” in red ink, and now you’re just staring at it, wondering how bad this is going to hurt your wallet.
We feel you. Rewiring is one of those projects that sounds huge and expensive and overwhelming, and sometimes it is. But it doesn’t have to be a mystery. Whether you just moved into an older home or you’ve been putting this off for years, talking to a trusted electrical contractor fort collins co can make the whole thing feel way less scary.
So let’s talk numbers.
Let’s talk about what actually drives the cost up (or keeps it manageable). And let’s make sure you walk away from this post knowing exactly what to ask and what to watch out for.
First, the Big Question: What Does Rewiring Actually Cost?
Let’s just get right to it.
For most homes, a full rewiring project runs somewhere between $8,000 and $20,000. That’s a wide range, we know. But the final number depends on a handful of very specific things, and once you understand those factors, the quote you get from a licensed electrician will make a lot more sense.
Smaller homes, think under 1,500 square feet, often land between $8,000 and $12,000. Larger homes or older ones with more complicated wiring situations can push past $15,000 to $20,000 or beyond.
Here’s a stat worth knowing: according to HomeAdvisor, the national average for a complete home rewire is around $12,000, though prices vary significantly by region, home age, and scope of work.
The 6 Things That Impact Your Rewiring Cost the Most
1. The Size of Your Home
This one’s pretty simple. More square footage means more wire, more outlets, more labor hours, and more materials. Electricians typically calculate part of their quote by the square foot, so a 2,500-square-foot home will almost always cost more than a 1,100-square-foot one.
Plan for roughly $3 to $8 per square foot as a starting baseline. But again, that number shifts based on everything else on this list.
2. The Age of Your Home (and What’s Already In the Walls)
This is where things get interesting, and sometimes expensive.
Homes built before 1970 often have wiring types that are no longer considered safe. Knob-and-tube wiring, aluminum wiring, and cloth-wrapped wires are the big three. Removing and replacing these takes more labor and more care than updating a home from the 1990s.
Here’s a number that puts it in perspective. The U.S. Consumer Product Safety Commission estimates that homes with aluminum branch circuit wiring are 55 times more likely to have a fire hazard than homes with copper wiring. That’s not meant to scare you, it’s meant to explain why replacing outdated wiring is genuinely worth the investment.
If your home has knob-and-tube? Budget on the higher end. There’s more demo involved, and electricians have to work more carefully inside older wall cavities.
3. How Easy It Is to Access the Wiring
Open walls during a renovation? Lucky you, rewiring just got cheaper. Finished walls in every room with no easy access points? The cost goes up because electricians have to fish wire through walls without opening everything up.
This is called “retrofit wiring” and it takes more time and skill. More time equals more labor cost. It’s not uncommon for a retrofit rewire to cost 20–30% more than the same job done during a gut renovation.
4. Your Electrical Panel Situation
A lot of rewiring projects also require a panel upgrade. If your home still has a 100-amp panel, which was totally fine for homes built in the 1960s, it may not be enough to handle a modern home’s electrical load. Smart appliances, EV chargers, home offices, and updated HVAC systems all demand more power.
Upgrading from a 100-amp to a 200-amp panel typically adds $1,500 to $3,000 to your project total. It’s not cheap, but it’s often necessary, and it’s way better to do it at the same time as a rewire than to pay for two separate mobilizations.
5. Number of Circuits, Outlets, and Switches
More of these means more cost. A simple rewire that replaces existing circuits is different from a full rewire that also adds circuits for a kitchen remodel, a home office, or a newly finished basement.
Every dedicated circuit, like the one your microwave needs, or your washer, or your HVAC system, adds to the total. It’s worth thinking about your future needs now so you don’t have to call an electrician back in two years.
6. Permits and Inspections
Yes, permits cost money. But please, please don’t skip them.
A rewiring job without permits is a liability you don’t want hanging over your home. When you go to sell, an inspector will flag unpermitted electrical work. Your insurance company can use it against you if there’s ever a fire or damage claim. And most importantly, unpermitted electrical work doesn’t get inspected, which means nobody verified it was done safely.
Permit costs vary by city and county, but for most electrical projects, they run $100 to $500. That’s a small price compared to the risk of skipping it entirely.
Partial Rewire vs. Full Rewire: What’s the Difference?
Not every home needs every wire replaced. Sometimes the answer is a partial rewire.
A partial rewire focuses on specific problem areas, maybe just the kitchen and bathrooms, or maybe just the outdated aluminum circuits in the bedrooms. This can bring costs down to $3,000 to $8,000, depending on the scope.
How do you know if partial is enough? A licensed electrician will do a full inspection and tell you exactly which parts of your system need attention. Some electricians offer this assessment for free. Others charge a small fee that gets applied to the project cost if you move forward.
Either way, get the assessment before you assume you need everything replaced. You might get lucky.
Pro Tips from a Contractor’s Point of View
A few things that every homeowner should hear before starting a rewiring project:
Get at least three quotes. Prices can vary a lot between electricians. The cheapest isn’t always the right choice, but neither is the most expensive. Look for someone licensed, insured, and willing to explain their quote line by line.
Ask what’s included in the quote. Does it cover patching drywall after wire fishing? Does it include the permit? Does it include the panel upgrade if needed? Get specifics in writing before you sign anything.
Don’t rush the timeline. Rewiring takes time, usually three to seven days for a full home, depending on size. A contractor who promises to knock it out over a weekend might be cutting corners somewhere.
Plan for drywall repair costs. Even the cleanest rewire leaves some wall access points that need to be patched and painted. Budget an extra $500 to $1,500 for drywall and paint touch-ups after the electricians are done.
Ask about warranties. A quality electrician will warranty their labor, typically for one year. Materials are usually covered under manufacturer warranties. Get this in writing.
Is Rewiring Worth It?
Short answer: yes.
Outdated wiring is one of the leading causes of residential electrical fires in the U.S. It also makes your home harder to sell, harder to insure, and more expensive to operate. Modern wiring supports everything your family uses daily, and it lasts 50 to 100 years with proper installation.
The upfront cost feels big. But when you break it down over the life of your home, it’s one of the most practical investments you can make. It protects your family. It protects your property. And it removes a major item from every future inspector’s list.
The Bottom Line
Rewiring your home isn’t cheap, but it’s also not a mystery. The size of your home, the age of your wiring, how accessible your walls are, your panel situation, and your permit requirements are the five things that move the needle most on price.
Get a proper inspection. Get multiple quotes. Ask smart questions. And work with a licensed electrician who pulls permits and backs up their work.
Your home’s electrical system is literally the backbone of everything that runs inside it. Give it the attention it deserves, and enjoy the peace of mind that comes with knowing it’s done right.
Now go make those calls. You’ve got this.
