What size generator do I need for my home?

It depends on your total load and what you want to power during an outage. We perform a detailed load assessment to recommend the right size.

How long does a generator installation take?

Most residential installations take 1–2 days, depending on complexity and permits.

Do you offer generator maintenance services?

Yes — we provide routine maintenance, oil changes, and system testing to keep your generator ready for any emergency.

What brands of generators do you install?

We install a variety of trusted brands based on your needs, preferences, and available fuel type.

Will I need a permit for installation?

Yes. Cahill Electrical Services handles all permitting and inspection requirements to ensure full compliance with Connecticut codes.

Home Generators & Backup Power | Electrician in New Haven, CT

Generators & Backup Power Electrician in CT

Reliable Generator Installation & Backup Power Solutions in New Haven, CT and Surrounding Areas

When the power goes out, everything comes to a halt — unless you’re prepared. At Cahill Electrical Services, we provide professional generator installation, maintenance, and backup power solutions for homeowners and businesses across New Haven County and surrounding Connecticut towns. From automatic standby systems to portable backup generators, we design and install dependable setups that keep your property safe, comfortable, and fully operational — even during extended outages.

Power interruptions are becoming more common due to storms, infrastructure strain, and seasonal demand. Whether you live in New Haven, Hamden, or North Haven, having a reliable generator is one of the best investments you can make. You may need a generator or backup power solution if:

You experience frequent outages: Connecticut’s coastal storms and winter weather often cause unpredictable power loss.
You want to protect essential systems: Generators keep refrigerators, HVAC, sump pumps, and medical equipment running.
You run a business: For commercial properties, outages mean lost revenue — generators ensure continuity.
You work from home: Stay connected and productive even during extended blackouts.
You have well water or septic systems: These rely on electricity to operate properly.
You value peace of mind: Automatic standby generators restore power within seconds of an outage — no manual setup required.

Cahill Electrical Services installs generators tailored to your needs, so your home or business stays powered and protected year-round.

Things to Consider When Getting a Generator or Backup Power System

Not all generators are created equal — and choosing the right system requires careful planning. Before you purchase or install, consider:

Power requirements: How many circuits or appliances do you want to power during an outage? We’ll calculate your exact load needs.
Fuel type: Common options include natural gas, propane, or diesel. We’ll recommend what’s best for your property.
Manual vs. automatic: Automatic standby generators turn on automatically during outages, while portable units must be started manually.
Installation location: Proper ventilation, clearance, and proximity to fuel sources are crucial for safety.
Transfer switch: This component isolates your generator from the utility grid and ensures safe power transfer.
Permitting and code compliance: We handle all necessary permits and ensure your installation meets Connecticut electrical and safety standards.

Our team works with you to design a system that meets your budget, your property’s requirements, and your comfort level during outages.

Cost of Generator & Backup Power Systems in Connecticut

The cost of a generator installation depends on several factors, including:

Type of system: Portable, standby, or whole-house systems vary in size and price.
Power capacity: Systems range from small 7kW units to large 24kW+ models for full-home coverage.
Fuel source: Propane, natural gas, and diesel each have different installation and operating costs.
Electrical setup: Upgrades to panels or wiring may be needed for older homes or buildings.
Installation complexity: Factors like trenching, gas line connections, and location accessibility can affect cost.

Cahill Electrical Services provides free consultations and clear, upfront pricing before any installation begins — so you know exactly what to expect. We only install reliable, code-compliant systems that deliver long-term peace of mind.

Our Generator Installation & Backup Power Process

Consultation & Load Assessment – We assess your home or business to determine power requirements and recommend the right generator size.
Product Selection – Choose from top-quality standby or portable generator brands suited to your goals and budget.
Permitting & Site Preparation – We obtain necessary permits and prepare a safe, accessible location for installation.
Installation & Wiring – Our licensed electricians handle all electrical connections, transfer switches, and start-up testing.
Testing & Commissioning – We simulate power loss to ensure your generator engages automatically and powers your selected circuits.
Maintenance & Support – We offer ongoing maintenance to keep your system ready for any outage.

From small residential setups to full-scale commercial backup systems, our process is thorough, safe, and efficient every time.

Why Choose Cahill Electrical Services for Generators & Backup Power

Licensed & Experienced Technicians: Our electricians are fully licensed under CT license #E1200185 and experienced in residential and commercial generator installations.
Turnkey Solutions: We handle everything — design, permits, installation, testing, and maintenance.
Local Expertise: Based in North Haven, we’re familiar with the unique weather challenges and power grid issues in the New Haven area.
Trusted Equipment: We install reliable, high-performance generators known for longevity and low maintenance.
Safety-First Approach: Every installation meets state code and manufacturer guidelines for proper ventilation, grounding, and fuel connections.
Responsive Service: When storms hit, we’re ready to respond quickly for maintenance and emergency repairs.

Generator & Backup Power FAQs

What size generator do I need for my home?
It depends on your total load and what you want to power during an outage. We perform a detailed load assessment to recommend the right size.
How long does a generator installation take?
Most residential installations take 1–2 days, depending on complexity and permits.
Do you offer generator maintenance services?
Yes — we provide routine maintenance, oil changes, and system testing to keep your generator ready for any emergency.
What brands of generators do you install?
We install a variety of trusted brands based on your needs, preferences, and available fuel type.
Will I need a permit for installation?
Yes. Cahill Electrical Services handles all permitting and inspection requirements to ensure full compliance with Connecticut codes.

Contact Cahill Electrical Services — Connecticut’s Go-To Generator & Backup Power Electrician

Don’t wait until the next storm to protect your property from power loss. Cahill Electrical Services provides expert generator installation, service, and backup power solutions across New Haven and surrounding towns.