Need help with knob and tube replacement costs for your older Glendora home? You’re looking at a big but needed investment. Most homeowners pay between $12,000 to $36,600 to replace knob and tube wiring. Some sources suggest lower costs from $3,500 to $9,000.
The price varies so much because knob and tube wiring replacement costs $10 to $20 per square foot. Your home’s size and electrical needs determine the final price. This outdated wiring isn’t just inconvenient – it puts your safety at risk. Knob and tube systems create high shock and fire risks, particularly with modern appliances.
The problems go beyond safety issues. You might not be able to get homeowner’s insurance, make claims, or sell your home if you keep this old wiring. The replacement work requires cutting into walls and ceilings to reach old wiring, which adds to your total cost.
This piece will show you what drives knob and tube wiring replacement costs in Glendora. You’ll learn about needed upgrades and smart ways to save money while making your home’s electrical system safe and modern.
Average Cost to Replace Knob and Tube Wiring in Glendora
The cost of knob and tube replacement in Glendora represents a major investment for homeowners. These numbers will help you plan your budget before you start this needed electrical upgrade.
Cost range for typical Glendora homes
Glendora homeowners can expect to pay between $12,000 and $36,600 [1] to replace knob and tube wiring, with most paying around $24,300 [2]. Your final cost depends on your home’s specifics:
- A 1,000-square-foot Glendora home costs $10,000-$20,000 to rewire [1]
- A 1,500-square-foot home needs $12,000-$26,000 [1]
- Larger 2,000-square-foot properties require $20,000-$40,000 [1]
You might pay as little as $8,000 [1] for an 800-square-foot home. The cost can reach $60,000 [2] for 3,000-square-foot houses based on access and complexity.
Cost per square foot explained
Your Glendora property’s square footage gives you the best cost estimate. The price ranges between $10 and $20 per square foot [1] for detailed knob and tube replacement.
The square-foot cost includes:
- New electrical wiring materials
- Labor to disconnect old systems
- Modern outlets and switches installation
- Electrical panel upgrades
- Permits and inspections
Licensed electricians in Glendora charge $50 to $200 per hour [2]. The rate changes based on their expertise and your project’s complexity.
How Glendora compares to national averages
Glendora’s prices match national averages, but local factors affect the final cost. The electrical panel upgrade that comes with knob and tube replacement costs between $600 and $4,000 [1] in this area.
Glendora homes also need:
- New circuit breaker panels ($500-$2,000 for 100-amp service) [2]
- Multiple new outlets per room ($100-$150 per box) [2]
- Wall repairs after installation ($300-$1,500 per patch) [2]
The city’s electrical permit fees add to your total cost. Most Glendora permits range from $200 to $900 [2] based on what you need done.
What Affects the Cost of Replacement?
Your Glendora home’s knob and tube replacement cost depends on many key factors. Let’s break down these variables to help you plan your budget better.
Home size and number of circuits
Your property’s square footage plays a big role in the final price because bigger homes need more materials and work. More rooms mean extra circuits, outlets, and switches. To cite an instance, rewiring costs run $10 to $20 per square foot [2]. A 2,000-square-foot home will cost much more than a 1,000-square-foot property.
Accessibility of wiring (attic, crawlspace, etc.)
Easy access to wiring makes a huge difference in your final bill. Homes that lack proper access to attics, crawlspaces, or basements need more wall and ceiling openings. This adds labor hours and repair costs. Limited access can push project timelines longer, which might raise costs by 15-20% [3].
Wall type: drywall vs. lath and plaster
Wall materials affect repair costs after wiring work. Drywall patches cost $300 to $1,500 based on size [2]. But older Glendora homes often have lath and plaster walls that cost $50 to $125 per square foot [2]. These repairs run 25-50% higher than standard drywall work.
Permit and inspection fees in Glendora
The city requires electrical permits that cost $200 to $900 based on project size [2]. You’ll also need electrical inspections at $100 to $200 [2] to check code compliance. Avoiding these requirements could lead to fines and problems when selling your home.
Labor rates for licensed electricians
Glendora’s professional electricians charge $50 to $200 per hour [4] for knob and tube replacement. Most charge $75 to $125 for the first hour and $40 to $100 after that [3]. Some prefer charging per opening, with outlets, switches, or fixtures costing $100 to $350 each [1].
Upgrades Often Needed During Replacement
Replacing knob and tube wiring in your Glendora home often requires additional electrical upgrades to meet modern standards.
Electrical panel upgrade costs
Your electrical panel will need updating with almost every knob and tube replacement. Glendora residents typically pay between $500 and $2,000 for a standard 100-amp service [4]. Homes requiring more capacity might see costs reach $2,500-$4,500 [5]. This upgrade will give a safe power supply that handles your home’s modern electrical needs.
Adding grounded outlets and GFCIs
Your new electrical system requires proper grounding. Each new outlet box installation costs about $100-$150 [4]. GFCI outlets are required in water-prone areas like kitchens and bathrooms, adding $10-$25 per outlet [6]. A typical Glendora home’s rooms need 3-4 outlets each, plus extra protection where water is present.
Replacing old switches and fixtures
The rewiring process requires new switches and fixtures to replace outdated ones. Light switches cost $50-$200 each [6], while light fixtures range from $160-$950 based on their style and complexity [6]. You can maintain your home’s historical charm with available vintage-style reproductions.
Meeting modern electrical code requirements
Entertainment rooms and computer areas need AFCI protection ($40-$80 per breaker) [4] according to electrical codes. Permits and inspections verify safety standard compliance. Your Glendora home’s current regulation compliance matters significantly for insurance coverage and future resale value.
How to Save on Knob and Tube Wiring Replacement
You can reduce the cost of knob and tube replacement with smart planning. Let’s explore ways to keep costs under control while ensuring safety.
Choosing affordable fixtures
The replacement of knob and tube wiring requires new outlets and fixtures, but you can definitely cut costs by selecting budget-friendly options. Your savings can add up when you pick simple, functional light fixtures and standard outlets instead of premium models [1]. A simple light fixture installation ranges between $70 and $300 [2], with prices that change based on style and complexity.
DIY wall patching and painting
You can handle the repair work after electricians open walls to access wiring. Taking on drywall patching and painting yourself saves hundreds in labor costs [1]. Many homeowners successfully manage post-wiring cleanup on their own and avoid the average $240 junk removal service fee [7]. These cost-saving steps add up quickly.
Bundling with other home upgrades
Your knob and tube replacement works best when coordinated with planned renovations. Electricians work more efficiently when walls are already open for kitchen or bathroom remodels [8]. This strategy helped homeowners complete their projects for about $13,500 in 2018 [9].
Getting multiple quotes from local electricians
You should get at least three in-person estimates from electricians who specialize in rewiring older homes [2]. Price differences often emerge for similar work through comparison shopping. Look beyond the bottom line and choose contractors with positive reviews and at least five years of experience [2].
Conclusion
Replacing knob and tube wiring is one of the most important investments you can make in your Glendora home. It pays off with better safety and peace of mind. At $10-$20 per square foot, you’ll need careful budgeting and planning. The fire and shock risks from outdated wiring make this upgrade a must-have rather than a choice.
Professional installation is the way to go for Glendora homeowners. Electrical work is complex, and local building codes are strict, so DIY attempts aren’t practical. On top of that, it’s crucial to get proper permits to keep your home insurable and marketable if you decide to sell.
Smart choices can help you manage costs. Get multiple quotes from licensed Glendora electricians to compare prices. You can handle cosmetic repairs yourself after the electrical work is done. Simple fixtures and outlets are just as safe as premium options and help keep your budget in check.
Note that electrical safety standards exist with good reason too. The original cost of $12,000-$36,600 might look steep, but this investment protects what matters most—your family and home. Knob and tube wiring can’t handle modern appliances and electrical needs safely.
Start by scheduling consultations with local electricians who know older homes well. Their expertise will help you create a realistic budget and timeline for your property. Your home’s electrical system isn’t the place to cut corners—it costs more than doing the job right the first time.
References
[1] – https://www.angi.com/articles/knob-and-tube-replacement-cost.htm
[2] – https://homeguide.com/costs/cost-to-replace-knob-and-tube-wiring
[3] – https://timbersill.com/electrical/cost-replace-knob-tube/
[4] – https://www.inchcalculator.com/knob-and-tube-replacement-cost-guide/
[5] – https://www.inchargeelectric.com/blog/whats-the-real-cost-of-a-residential-electrical-panel-upgrade.html
[6] – https://www.canton-mississippi.com/knob-and-tube-replacement-cost-key-considerations-and-budgeting-guide/
[7] – https://www.yahoo.com/lifestyle/much-does-knob-tube-wiring-103615623.html
[8] – https://momcrieff.com/my-house-had-knob-and-tube-wiring-here-is-how-i-updated-it/
[9] – https://www.mncee.org/dealing-knob-and-tube-wiring
