Knob & Tube Wiring Removal in Concord & Central NH

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$199 Full Electrical Home Safety Inspections

$295/Year Annual Generator Maintenance*

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Outdated Wiring Holds Your Home Back

For many older homes and businesses in Concord and Central New Hampshire, knob and tube wiring is a hidden issue with costly, frustrating consequences. This outdated electrical system lacks grounding, cannot safely support today’s electrical loads, and is often flagged by inspectors and insurance providers. In many cases, it also limits your ability to upgrade appliances, complete renovations, or secure coverage for your property.

O’Keefe and Flanagan Electric can remove your outdated knob and tube wiring and replace it with modern, code-compliant systems built for current electrical demands. We handle projects throughout Concord and Central New Hampshire with a focus on safety, clear communication, and reliable workmanship. 

Why Does Knob & Tube Wiring Need to Be Replaced?

Knob and tube systems were installed in a different era, before modern appliances, HVAC systems, and high-demand electrical usage became standard. As these systems age, they become less reliable and more difficult to work around.

Common issues with knob and tube wiring include:

  • No ground wire, which increases the risk of shock and equipment damage

  • Limited capacity that cannot support modern electrical loads

  • Deteriorating insulation that increases fire risk

  • Difficulty passing inspections for renovations or home sales

  • Insurance challenges, including higher premiums or denied coverage

Replacing the system addresses these limitations directly and allows your home or building to operate safely and efficiently.

How We Approach Knob & Tube Removal

We keep the process of upgrading your electrical system organized, clearly communicated, and aligned with current code requirements.

Inspection and Planning

We start with a full evaluation of your existing wiring. This allows us to identify the scope of work, explain what needs to be replaced, and outline a clear plan for the project.

Preparation

Before work begins, we protect the floors and surrounding areas, stage equipment, and walk you through what to expect during each phase.

Removal and Rewiring

We remove the existing knob and tube wiring and install modern electrical systems using code-compliant materials from trusted manufacturers such as Siemens, Square D, and Leviton.

Testing and Inspection

Once installation is complete, we thoroughly test the system and coordinate the required permits and inspections to confirm that everything meets the requirements of Concord and New Hampshire codes.

Final Review and Support

We review the completed work with you, confirm system performance, and remain available for any follow-up questions after the project is finished.

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Benefits Replacing Knob & Tube Wiring

Upgrading your electrical system from a knob and tube system will improve safety, usability, and long-term reliability.

Key benefits include:

  • Improved electrical safety with grounded, modern wiring

  • Increased capacity for appliances, HVAC systems, and new technology

  • Better positioning for inspections, resale, and future renovations

  • Greater likelihood of securing or maintaining insurance coverage

  • A system that meets current electrical codes and standards

Why Homeowners Choose O’Keefe and Flanagan

We are a locally owned company based in Concord, and most of our work is in residential homes throughout Central New Hampshire. Our team shows up on time, communicates clearly, and focuses on doing the work correctly the first time.

When you work with us, you can expect:

  • Licensed, insured, and background-checked electricians

  • Consistent communication and reliable scheduling

  • Clean, organized job sites

  • Quality materials from trusted manufacturers

  • Work backed by a strong local reputation and five-star reviews

We have been recognized as Concord’s #1 Electrician in 2023 and 2024 and continue to build our reputation through straightforward service and dependable results.

Service Areas – Concord and Beyond

Our team provides knob and tube wiring removal and replacement throughout Concord and much of Central New Hampshire. Whether you live in Bow, Loudon, Pittsfield, Pembroke, Dunbarton, or surrounding communities, you get fast response and expert solutions from a neighbor who knows your town’s permitting and code requirements.

For a full list of areas we serve, visit our service areas

Electrician at work on switches and sockets of a residential electrical installation.

What to Expect During the Project

Most residential knob and tube removal projects are completed within several days, depending on the size and layout of the home.

We take steps to minimize disruption by:

  • Protecting floors and work areas

  • Keeping job sites organized and clean

  • Communicating clearly throughout each phase

  • Coordinating required permits and inspections

Our goal is to complete the work efficiently while maintaining a safe and controlled environment in your home.

Frequently Asked Questions

Knob and tube wiring lacks a ground wire, uses outdated insulation, and often cannot support today’s electrical loads. As the materials age, the risk of shock and fire increases, especially if systems have been modified or patched.

Homes built before 1950 are most likely to contain knob and tube wiring. Visible ceramic knobs or tubes in basements and attics are telltale signs. Our electricians can identify and assess your system during a free inspection.

Most projects are completed within a few days, depending on the property's size and the system's complexity.

Local and state codes require modern grounding and specific safety devices. We stay up to date with code changes to ensure your new system is fully compliant.

Yes, O’Keefe and Flanagan offer flexible financing options for wiring upgrades.

Don’t Wait for an Electrical Emergency – Book Knob & Tube Wiring Removal in Concord, NH

If your home still has knob and tube wiring, the next step is a professional evaluation. We will walk you through what is in place, what needs to be updated, and how to move forward. Contact O’Keefe and Flanagan Electric to schedule your free wiring inspection in Concord or anywhere in Central New Hampshire.

SIGN UP FOR A KNOB AND TUBE ESTIMATE

Address
315 S Main St
Concord, NH 03301
Get Directions
Hours

Mon – Fri: 8:00 AM - 4:00 PM
Sat-Sun: Closed

Call or Text
(603) 665-0021

Our Accolades

2026 Best Electrician in Concord, New Hampshire Award
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BBB

Our Office

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Address
315 S Main St
Concord, NH 03301
Get Directions
Hours

Mon – Fri: 8:00 AM - 4:00 PM
Sat-Sun: Closed

Call or Text
(603) 665-0021
© 2026 O'Keefe & Flanagan Electric. All Rights Reserved