Generators

Carter Sullivan provides a complete generator solution, from expert supply and professional installation to ongoing maintenance and support. Our team ensures reliable, uninterrupted power for every application, with tailored solutions designed to meet the needs of commercial, industrial, public, and agricultural clients across the UK.

Rated 4.8 stars on Google

Minimal Disruption,
Maximum Support

Carter Sullivan delivers turnkey generator solutions designed to provide seamless power protection with minimal disruption to your operations. We manage every stage, from supply and installation to final switchover and commissioning, scheduled at times convenient to your business, day or night.

As approved partners for all major manufacturers we supply, our engineers ensure each installation meets strict manufacturer standards and is fully prepared to safeguard your business from power loss the moment it goes live.

Installation

A generator is only as reliable as its installation. At Carter Sullivan, we provide expert installation services that ensure your system is set up safely, efficiently, and in full compliance with regulations. From site surveys and load assessments to cabling, positioning, and integration, every detail is handled by our experienced engineers.

We work to minimise disruption and ensure a seamless fit with your existing infrastructure. The result is a professionally installed generator that’s ready to deliver power the moment it’s needed—giving you confidence your business can continue running without interruption.

Testing & commissioning

Once installed, a generator must be rigorously tested before it can be relied upon. Carter Sullivan’s commissioning process verifies every component, from mechanical and electrical connections to control systems and safety features.

We run simulated outages and load tests to confirm that your generator responds seamlessly under pressure. Calibration and system integration ensure smooth operation with your existing infrastructure. The process concludes with a detailed report, giving you full visibility and peace of mind. With Carter Sullivan, testing and commissioning go beyond checks—they’re your assurance that your generator will perform exactly as needed.

Long term reliability

Generators are long-term investments, and their reliability depends on ongoing care. Carter Sullivan offers tailored maintenance plans designed to keep your system operating at peak performance. Regular inspections, servicing, and load bank testing help identify and resolve issues early, reducing downtime and repair costs.

Using genuine parts and manufacturer-approved procedures, we extend system life and preserve warranties. With 24/7 support, our team is always on hand to keep your generator running when it matters most. Long-term reliability isn’t just about equipment—it’s about trust. Carter Sullivan ensures your generator is a dependable power solution for years to come.

A generator is only as reliable as its installation. At Carter Sullivan, we provide expert installation services that ensure your system is set up safely, efficiently, and in full compliance with regulations. From site surveys and load assessments to cabling, positioning, and integration, every detail is handled by our experienced engineers.

We work to minimise disruption and ensure a seamless fit with your existing infrastructure. The result is a professionally installed generator that’s ready to deliver power the moment it’s needed—giving you confidence your business can continue running without interruption.

Once installed, a generator must be rigorously tested before it can be relied upon. Carter Sullivan’s commissioning process verifies every component, from mechanical and electrical connections to control systems and safety features.

We run simulated outages and load tests to confirm that your generator responds seamlessly under pressure. Calibration and system integration ensure smooth operation with your existing infrastructure. The process concludes with a detailed report, giving you full visibility and peace of mind. With Carter Sullivan, testing and commissioning go beyond checks—they’re your assurance that your generator will perform exactly as needed.

Generators are long-term investments, and their reliability depends on ongoing care. Carter Sullivan offers tailored maintenance plans designed to keep your system operating at peak performance. Regular inspections, servicing, and load bank testing help identify and resolve issues early, reducing downtime and repair costs.

Using genuine parts and manufacturer-approved procedures, we extend system life and preserve warranties. With 24/7 support, our team is always on hand to keep your generator running when it matters most. Long-term reliability isn’t just about equipment—it’s about trust. Carter Sullivan ensures your generator is a dependable power solution for years to come.

Advice from the team

When it comes to generators, there’s no one-size-fits-all solution. Every site has unique requirements, from load demands and fuel type to installation conditions and long-term usage.

With so many variables, choosing the right system is critical. That’s why Carter Sullivan provides expert advice and tailored generator solutions—whether for backup during outages, continuous power for critical operations, or long-term resilience. Our team ensures your generator is correctly specified, professionally installed, and ready to deliver reliable performance for years to come.

“We are continually impressed by the service delivered by Carter Sullivan. The attention to detail and technical expertise of their engineers and management team provides us with a first class service. This commitment has ensured a continued and successful relationship.”

Eaton


FAQs

What size generator do I need?
The size of your generator depends on your power requirements. You’ll need to consider total load, peak demand, and how long you need the generator to run during an outage. Carter Sullivan can provide expert advice and a site assessment to recommend the right generator for your specific needs.
How long can a generator run continuously?
Runtime depends on the generator’s fuel type, capacity, and load. Diesel generators typically run longer than petrol models, and larger units can provide continuous power for days with adequate fuel supply. Regular maintenance ensures optimal performance and reduces the risk of overheating or mechanical failure.
What maintenance does a generator require?
Generators require routine inspections, oil and filter changes, load bank testing, and fuel checks. Well-maintained generators run efficiently, last longer, and are ready to deliver power when needed. Carter Sullivan offers tailored maintenance plans to keep your system optimised.
Can a generator be installed indoors?
Indoor installation is possible but requires careful planning for ventilation, exhaust, and noise control. Most generators are installed outdoors or in dedicated enclosures. Our engineers will assess your site and recommend a safe, compliant installation.
How quickly can a generator provide backup power?
Once a power outage occurs, most modern generators can start within seconds or minutes, depending on the type and configuration. Automatic transfer switches ensure seamless transition from mains to generator power, minimising disruption to your operations.
Are generators safe to operate?
Yes, when installed and maintained correctly. Generators produce exhaust gases, so ventilation and safety precautions are essential. Carter Sullivan ensures all installations meet industry standards and that your team receives guidance on safe operation.
How long do generators typically last?
With regular maintenance and correct usage, commercial and industrial generators can last 15–20 years or more. Components like batteries, filters, and fuel systems may require periodic replacement to ensure consistent performance.

Get in touch

Get in touch today for a free consultation to discuss your project requirements.