Electrical Wiring Services in Kitchener, Waterloo, Cambridge, and Guelph

Request An Estimate

Keep your property safe, functional, and code-compliant with expert electrical wiring services from Blais Electric.

In a utility room, a person examines an open electrical panel surrounded by numerous wires, with ductwork and plumbing visible overhead.
Electrical Safety Inspection Being Conducted for a Home near Kitchener, Waterloo, & Cambridge

Trusted Electrical Wiring Services

At Blais Electric, we provide reliable, high-quality wiring installation and replacement for homes and businesses across Kitchener, Waterloo, Cambridge, and Guelph. Whether you’re upgrading old systems, renovating a space, or building something new, our certified electricians deliver safe, code-compliant wiring that meets today’s demands and prepares you for tomorrow’s needs.

Whether you’re updating your home or upgrading your commercial property, we’ll make sure your lighting works exactly the way it should—reliable, efficient, and fully compliant with electrical codes across Kitchener, Waterloo, Cambridge, and Guelph.

Types of Electrical Wiring Services in Guelph & the Tri-Cities

Our team handles everything from legacy wiring issues to complete system overhauls. Below are the most common and essential wiring services we provide:

  • Aluminum Wiring Replacement: Older homes in Guelph and surrounding areas may have aluminum wiring, which poses fire and insurance risks. We replace aluminum with copper or perform safe copper pigtail connections to bring your system up to modern standards.
  • Knob and Tube Wiring Removal:  A common issue in heritage homes, knob and tube wiring is outdated and often unsafe. Our team removes and replaces it with safe, efficient wiring systems that meet today’s building codes.
  • Whole Home Rewiring:  If your electrical system is aging or overloaded, full home rewiring ensures reliable, safe performance for modern living. We handle everything from the main panel to every outlet, switch, and light.
  • Copper Pigtailing: When a full aluminum wire replacement isn’t feasible, we apply copper pigtails at every device and panel. This approach meets safety standards and can help with insurance approval.
  • Accessory Dwelling Units (ADUs): We provide complete wiring for basement suites, garden suites, and backyard units, ensuring safe distribution, independent metering (if required), and code-compliant installations.
  • New Freestanding Structures: Need wiring for a detached garage, workshop, or shed? We handle trenching, conduit installation, panel connection, and full electrical service setup for new structures.
  • Additions & Renovations: Whether you’re adding a new room or updating your layout, we integrate new wiring into your existing system with minimal disruption and full code compliance.
  • Damaged Wiring Repairs: We troubleshoot and repair wiring issues caused by storms, water damage, animal interference, or accidental cuts. Our team ensures your system is safe, operational, and protected from future damage.
  • New Electrical Wiring: From lighting and outlets to dedicated circuits for appliances or special equipment, we wire new installations to meet your exact needs—residential or commercial.
  • Data & Communication Wiring: In today’s digital world, structured wiring for internet, phone, and networked devices is essential. We install clean, organized systems for seamless connectivity.

Why Choose Blais Electric for Electrical Wiring?

Blais Electric is a trusted name in Guelph, Kitchener, Waterloo, and Cambridge. With decades of experience and a dedication to safety and precision, we deliver electrical wiring solutions that are reliable, compliant, and built to last. Our licensed electricians follow the most up-to-date electrical codes, use high-quality materials, and prioritize clear communication throughout every project. Whether it’s a small repair or a full-scale rewire, you can count on us to do the job right.

Request an Estimate

Our Electrical Wiring Process

At Blais Electric, we make every project smooth, efficient, and tailored to your property’s specific needs:

Benefits of Professional Electrical Wiring

Investing in high-quality wiring brings both peace of mind and practical value:

Blais Electric offers electrical repair services in Guelph, Kitchener, Waterloo, & Cambridge

For Homeowners

  • Safety First: Outdated or damaged wiring can lead to fires or shocks. Upgrading ensures your home is safe for your family.

  • Modern Living Compatibility: Rewiring allows you to safely run appliances, EV chargers, HVAC, and smart home devices.

  • Insurance Compliance: Many insurance companies require updates to aluminum or knob-and-tube wiring.

  • Property Value Boost: Professionally installed, modern wiring increases the resale value of your home.
A smiling person stands in front of a white van labeled "Blais Electric," holding a tool bag, with a ladder on the van, and trees in the background.

For Businesses

  • Reliable Power: Prevent outages and system failures with properly wired and balanced circuits.

  • Support for Technology: Ensure safe use of computers, machinery, and sensitive electronics.

  • Code Compliance: Avoid fines or shutdowns by ensuring your wiring meets current codes.

  • Efficient Expansion: As your business grows, a modern electrical foundation makes upgrades easier and more affordable.
Electrician Serving Home Builders and Renovation Companies in Guelph, Kitchener, Waterloo, and Cambridge

Commercial Electrical Wiring Services

Blais Electric specializes in commercial wiring for businesses across the Guelph and Tri-Cities region. From retail shops and offices to industrial facilities and multi-unit buildings, our team handles:

  • Complete Commercial Rewiring

  • Dedicated Circuits for Equipment or HVAC

  • Subpanel and Load Center Installations

  • New Outlets and Lighting Circuits

  • Emergency Repairs for Damaged or Overloaded Wiring

We work with minimal disruption to your operations and follow strict timelines to ensure your business stays up and running.

Request An Estimate

“The entire team at Blais Electric was easy to work with and addressed all of our concerns!”

Amazing service throughout! I had an electrical job that needed to be completed by a certain date. Danielle scheduled my job so that I could meet my timeline for having attic insulation installed. The technician, Jeff, was knowledgeable and very efficient. I would highly recommend Blais Electric. For any future electrical needs, I will not hesitate to call them again.

— Ann Welsh

Kyle, Jeff, and the entire team at Blais Electric were easy to work with and addressed all of our concerns. We feel more comfortable and safe in our new home, knowing the electrical issues flagged by the home inspector have been resolved.

— Andrew Bilchak

Blais Electric is great to work with – professional and service-oriented. Patrick provided thoughtful consultation about options, and the project was highly organized and well-scheduled, including text prompts and reminders. Colton upgraded my panel, and he and Ahmed were hard-working, good communicators, open to questions, and finished with a thorough cleanup.

— Jinnean Barnard

Blais Electric had performed work in our home on several occasions. Both big and small jobs. Friendly, courteous, responsive and excellent work.

— Benjamin Percy

The technician communicated when he would arrive and did arrive when he said he would. The work was done quickly and professionally. The technician was very friendly and professional and answered all my questions clearly. I was also happy to see this company supporting an apprentice. The apprentice was on my job site, and he was also friendly and professional. I would call this company again for all my electrical work. Very happy.

— Alison Hillis
A white commercial van with "Blais Electric" branding parked in a driveway, featuring ladders mounted on top and contact information on the side.

Electrical Wiring FAQs

How do I know if my home needs rewiring?

Common signs include flickering lights, frequent breaker trips, warm outlets, or old wiring types like knob-and-tube or aluminum. If your home is over 40 years old, it may be time for an inspection.

Can you rewire a house while I’m still living in it?

Yes. Our team can rewire occupied homes in stages to minimize disruption. We work carefully to keep you safe and maintain access to essential power during the process.

Are permits required for wiring upgrades?

Yes, most electrical wiring work requires permits. Blais Electric handles the permit process and ensures all work complies with local and provincial codes.

What is copper pigtailing and is it a good solution?

Copper pigtailing is a method used to safely connect aluminum wiring to copper at every outlet or switch. It’s an approved and cost-effective alternative to full rewiring in some cases.

Can you install wiring for a detached garage or workshop?

Absolutely. We provide full wiring services for new freestanding structures, including trenching, panel installation, and lighting/outlet setup.

Do you offer emergency wiring repairs?

 Yes. We provide quick-response services for storm-damaged wiring, animal-related issues, and urgent electrical faults in both homes and businesses.

Seven adults stand and sit in a modern kitchen, smiling and wearing black t-shirts with a white logo, looking relaxed and happy.

Electricians in Guelph Who Truly Understand Your Needs

We know how upsetting it is to have you or your space treated with disregard by contractors – from unresponsiveness to poor-quality work. We’ve experienced the same frustration ourselves, so we do things differently.

Blais Electric provides a service beyond the wires and circuits, creating a harmonious experience for you and your property. We strive to build long-lasting relationships with our clients through developing trust, consistently providing impeccable service, and maintaining clear communication. We dedicate ourselves to making your space safe, efficient, and comfortable. Because every detail matters – and so do you.

Serving Our Neighbours in Guelph & Surrounding Communities

As your local electricians, we’re honoured to be a part of this community. Our service area includes:

  • Guelph
  • Kitchener
  • Waterloo
  • Cambridge
  • Elora
  • Fergus
  • Centre Wellington

We’ve enjoyed meeting and working with wonderful people in every town or city and are devoted to continuing to help our neighbours.

Connect with Blais Electric

Don’t allow electrical challenges to compromise your peace of mind. Reach out to Blais Electric today and embark on the journey to a brighter, more harmonious living space. With us, you are not just another project but an integral part of a vision for a better, more interconnected world.

Request An Estimate

A person is holding a clipboard with a "Client Intake Sheet" from "Blois Electric." There are blank fields for client information and details.