Ensure uninterrupted power with R&A Langevin’s professional generator solutions. Based in Pelham, NH, we specialize in standby and portable generator installations that keep your home powered during outages. From initial consultation to ongoing maintenance, our licensed electricians deliver reliable backup power systems throughout Southern New Hampshire and Northern Massachusetts.
Generator Installation and Maintenance Electrician in Pelham, NH
Proudly Serving Southern NH & Northern MA
Complete Generator Installation & Maintenance Services
Power outages don't wait for convenient times. Our experienced team provides comprehensive standby generator installation services that automatically protect your home when the grid fails. Whether you need whole-house coverage or targeted backup power for essential systems, we design and install generator systems Pelham NH residents trust for reliable emergency power.
Our Generator Services Include:
- Standby generator installation with automatic transfer switches
- Portable generator setup and transfer switch installation
- Generator maintenance and repair services
- Load calculation and system sizing
- Permit acquisition and code compliance
- Generac certified services

Standby Generator Systems = Automatic Peace of Mind
Whole house generator systems represent the gold standard in backup power protection. These permanently installed units connect directly to your home's natural gas or propane supply and electrical system. When utility power fails, your backup generator automatically starts within seconds, powering your entire home until utility service returns.
Key Benefits of Standby Systems:
- Automatic operation, no manual startup required
- Permanent installation outside your home
- Powers entire house or selected circuits
- Runs on natural gas or propane fuel
- Weekly self-testing for reliability
Weather-resistant outdoor enclosure
Our emergency power systems installations include comprehensive load analysis to properly size your generator, ensuring optimal performance and fuel efficiency. We work with leading brands like Generac, Kohler, and Briggs & Stratton to provide systems backed by solid warranties and nationwide service networks.

Our Professional Installation Process
Step 1: Site Assessment & System Design
We evaluate your home’s power needs, existing electrical system, and optimal generator placement. Our team calculates electrical loads, reviews local code requirements, and designs a system tailored to your specific requirements and budget.
Step 2: Permits & Preparation
We handle all necessary permits and coordinate with utility companies when required. Site preparation includes concrete pad installation for standby units, fuel line connections, and any required electrical panel modifications.
Step 3: Professional Installation & Testing
Our licensed electricians install the generator, transfer switch, and all associated wiring according to manufacturer specifications and local codes. Every installation includes comprehensive testing to ensure proper operation and safety.
Step 4: Training & Maintenance Setup
We provide complete operation training and establish ongoing maintenance schedules to keep your system reliable. Our service includes annual inspections, oil changes, and preventive maintenance to ensure your generator is ready when needed.
Portable Generator Solutions = Flexible Backup Power
Not every home requires a whole-house solution. Portable generators offer cost-effective backup power for essential circuits. These systems require manual startup but provide significant savings while still delivering professional-grade power transfer capabilities.
Portable Generator Advantages:
- Lower upfront investment than standby systems
- Manual transfer switch or interlock kit options
- Powers selected essential circuits
- Gasoline, propane, or dual-fuel operation
- Portable for camping, job sites, and events
Our portable generator installations include proper transfer switch setup, ensuring safe connection to your home's electrical system. We install interlock kits or dedicated transfer panels that prevent dangerous backfeeding while allowing you to select which circuits receive generator power.

Why Choose R&A Langevin for Generator Systems
Local Expertise: Based in Pelham, NH, we understand the unique power challenges facing Southern New Hampshire and Northern Massachusetts communities. Our team knows local codes, permit requirements, and weather patterns that affect generator performance.
Licensed & Insured: Our electricians hold current licenses in both NH and MA, ensuring professional installation that meets all safety and code requirements.
Comprehensive Service: From initial consultation through ongoing maintenance, we provide complete generator lifecycle support.
Additional Benefits:
- Authorized dealer for major generator brands
- 24/7 emergency service capabilities
- Transparent pricing with detailed estimates
- Quality workmanship backed by our service guarantee
- Financing options available for qualified customers
Service Area
Operating from our Pelham, NH base, we proudly serve homeowners throughout Southern New Hampshire including Derry, Salem, Windham, Londonderry, Atkinson, Plaistow, and Hampstead. Our Northern Massachusetts service area includes Methuen, Andover, North Andover, Lawrence, and Haverhill.
Contact Us for a Free Generator Service Estimate
Ready to protect your home with reliable backup power? Contact R&A Langevin, your trusted generator systems specialist in Pelham, NH. We provide free consultations and detailed estimates for both standby and portable generator installations throughout Southern NH and Northern MA.
Don’t wait for the next power outage to wish you had backup power. Contact us today to schedule your generator system consultation.