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Fast Local Dispatch: Serving Northborough, MA & Nearby Areas
Fully Licensed & Insured: Professional Local Service
Emergency Priority

Giroux Electrical Contractors

Licensed master electricians serving Northborough, Cambridge, Newton & surrounding communities — available 24/7 with upfront, flat-rate pricing before we lift a single wire.

Fully Licensed & Insured
Upfront Pricing
Fast Local Response
Giroux Electrical Contractors service vehicle and equipment
knob-and-tube wiring remediation, 60A/100A to 200A service heavy-ups, architectural recessed lighting

Our Workmanship Promise

Every project is backed by our full craftsmanship guarantee. Clear communication, itemized quotes before work begins, and respect for your property.

Interactive Troubleshooting

Need Immediate Guidance?

Select the issue you're experiencing to see typical root causes and upfront diagnostic recommendations for Northborough properties.

Knob-and-Tube Wiring Remediation

Knob-and-Tube Wiring Remediation Service

Many pre-1950 homes in Cambridge, Newton, and Brookline still run on cloth-insulated knob-and-tube wiring with no ground and buried junctions. We systematically replace legacy runs with modern NM-B cable, rework junction points inside code-compliant boxes, and document the work for your insurer.

Service Specialties

Core Trade Capabilities

Comprehensive, licensed solutions for homes and businesses in Northborough and surrounding areas.

Knob-and-Tube Wiring Remediation

Many pre-1950 homes in Cambridge, Newton, and Brookline still run on cloth-insulated knob-and-tube wiring with no ground and buried junctions. We systematically replace legacy runs with modern NM-B cable, rework junction points inside code-compliant boxes, and document the work for your insurer.

200-Amp Service Heavy-Ups

If your home is still on a 60-amp or 100-amp service, adding central air, an EV charger, or a heat pump will overload it. We handle the full upgrade — meter socket, main panel, grounding and bonding, utility coordination, and permitting — so your panel is sized for today's loads and tomorrow's.

Architectural Recessed Lighting

We design and install trim-free LED downlights with proper placement for ceiling joists, insulation contact ratings, and even light distribution across kitchens and great rooms. Retrofit or new-construction housings, dimmer-compatible drivers, and a layout mapped before a single hole is cut.

24/7 Emergency Electrical Repair

Burning smell at the panel, dead circuits, sparking outlets, or a full outage — we answer around the clock, every day of the week. Our trucks carry the diagnostic gear and common replacement parts to isolate the fault and restore power safely, often on the first visit.

Physical Proof of Work

Visual Transformations & Upgrades

Real project comparisons demonstrating code-compliant modernizations and equipment replacements in Northborough.

200-Amp Service Panel Heavy-Up

Dangerous 60A split-bus fuse box with scorched neutral bar and overloaded circuits

Illustrative example — not Giroux Electrical Contractors's work
Before upgrade BEFORE
After upgrade AFTER
Key Upgrade Specifications
  • Licensed, code-compliant installation
  • Upfront pricing agreed before work begins
  • Work area cleaned up on completion
Warranty discussed with your estimate

Dedicated EV Fast Charger Station

Standard 120V wall outlet taking 28+ hours to charge electric vehicle

Illustrative example — not Giroux Electrical Contractors's work
Before upgrade BEFORE
After upgrade AFTER
Key Upgrade Specifications
  • Licensed, code-compliant installation
  • Upfront pricing agreed before work begins
  • Work area cleaned up on completion
Warranty discussed with your estimate

Recessed LED Lighting Retrofit

Glaring outdated fluorescent ceiling fixtures with buzzing ballasts and yellow light

Illustrative example — not Giroux Electrical Contractors's work
Before upgrade BEFORE
After upgrade AFTER
Key Upgrade Specifications
  • Licensed, code-compliant installation
  • Upfront pricing agreed before work begins
  • Work area cleaned up on completion
Warranty discussed with your estimate
Giroux Electrical Contractors team and work vehicle in Northborough
Serving Northborough, MA & Nearby Communities
Local Heritage & Values

About Giroux Electrical Contractors

Founded on principles of honest craftsmanship, upfront communication, and technical excellence, Giroux Electrical Contractors has served the Northborough area with dependable residential and commercial services.

Our team is fully licensed, insured, and background-checked. We specialize in knob-and-tube wiring remediation, 60A/100A to 200A service heavy-ups, architectural recessed lighting, ensuring your property remains protected and efficient year-round.

Fully Licensed & Insured
Verified Local Contractor
Upfront Itemized Pricing
Zero Travel Surcharges

Local Coverage Across Northborough, MA

Our licensed service trucks are stationed locally to provide rapid response times throughout Northborough, Cambridge, Newton, Somerville, Brookline, Watertown.

Guaranteed Dispatch Radius
Northborough & Surrounding Municipalities
No long-distance travel fees for standard service calls within our core operating territory.
Connect With Us

Request an Upfront Estimate

Reach out directly by phone or submit your project details below for a prompt, itemized response.

Direct Phone Line
(508) 719-8000
Physical Service Base
41 Lawrence St, Northborough, MA 01532
Operational Hours
Monday: Open 24 hours, Tuesday: Open 24 hours, Wednesday: Open 24 hours, Thursday: Open 24 hours, Friday: Open 24 hours, Saturday: Open 24 hours, Sunday: Open 24 hours

Fast Project Estimate

Fill out the form below and our team will follow up promptly.