In New Hampshire, a full house rewire often falls somewhere around $10,000 to $30,000, but the final cost depends on your home’s size, age, wall access, electrical panel needs, and whether repairs are needed after the wiring work is done. Older homes with plaster walls, outdated panels, or difficult access usually cost more.
Quick cost breakdown
A rough starting point looks like this:
- Small homes around 1,000 square feet: often $5,000 to $10,000
- Mid-size homes around 1,500 to 2,500 square feet: often $10,000 to $20,000
- Larger homes over 3,000 square feet: often $20,000 and up
If the project also needs a panel upgrade, wall patching, or specialty access work, the price can climb higher.
What affects the cost most?
The biggest cost drivers are usually:
- Home size and layout – More rooms, circuits, outlets, and fixtures usually mean more labor and materials.
- Age of the house – Older New Hampshire homes can be harder to rewire, especially if they have plaster walls, limited access, or outdated wiring methods.
- Panel upgrades – Some rewiring jobs also require panel work so the home can safely handle modern electrical demand.
- Permits and inspections – Permit and inspection costs should be part of the project budget, not an afterthought.
- Wall and ceiling repairs – If wiring access requires opening finished surfaces, patching and painting can increase the total project cost.
Signs your house may need rewiring
You may want a professional evaluation if you notice:
- breakers that trip often
- flickering or dimming lights
- hot or discolored outlets
- burning smells
- an older fuse box
- older wiring that may no longer meet current needs
What to do next
If your home is showing warning signs or you are planning a renovation, the smartest next step is to get a professional assessment instead of guessing based on national averages alone. A local inspection can help confirm whether you need a full rewire, a partial update, or panel-related work before costs grow further.
Final Takeaway
House rewiring in New Hampshire is a significant project, but for older homes or homes showing clear warning signs, it can also be one of the most important safety upgrades you make. The cost depends heavily on access, age, size, and panel condition, which is why a local quote is the best way to understand the real scope.
Get a quote for house rewiring
If you think your home may need rewiring, contact R.A. Langevin Electric to schedule an assessment and get a quote for the work.
R.A. Langevin also handles larger system upgrades that involve dedicated circuits and load planning, including commercial HVAC installation projects.
Frequently Asked Questions
What is the average cost to rewire a house in New Hampshire?
The live page estimates about $10,000 to $30,000, with pricing depending on size, access, age, and upgrades.
How much does rewiring cost per square foot?
The live page gives a broad range of about $5 to $17 per square foot, while more recent broader references place many projects around $6 to $10 per square foot depending on conditions.
How long does a full house rewire take?
Usually around 3 to 10 days, depending on the house and the scope of work.
Does rewiring usually require permits?
The live page says yes, and that those permits and inspections should be built into the job.
Can I save money by rewiring during a remodel?
Often yes, because open walls usually make the work easier and reduce labor time.