Meet our featured client in Hamilton

A new roof protects everything a family builds inside a home, and New Jersey houses take real punishment from heat, cold, and storms across every season. When a roof reaches the end of its life, replacement is not optional — it is the decision that keeps the structure, the insulation, and the interior dry and sound. Homeowners in Hamilton, Mercer County who are considering roof replacement in Hamilton NJ deserve a contractor who installs a system engineered to last, not just one that looks good on day one. GAF Timberline HDZ roofing systems meet that standard, and we install them with the precision a GAF-certified contractor brings to every job.

Green Sun Energy Services, LLC is locally owned and operated, based in New Jersey, and has been in business since 2010. We are a GAF-certified roofing contractor, and our work speaks to that qualification on every installation we complete. As a local roofing contractor near Hamilton NJ, we have completed roofing installation in Mercer County, serving one client in Hamilton in 2025. We bring the same commitment to every home we work on.

More of our work near Hamilton

18 kW Generac standby generator in Princeton Junction, NJ Nearby · Princeton Junction

Princeton Junction, NJ

Solar, Generator and RoofingPanels Off and Back On in 2023

Client since November 2017

Green Sun Energy Services sent a technician out to fix my generator. The technician’s name was John. He was very polite and professional. He was very efficient and took the time to explain to me the cause of the problem and the steps he took…

Gerald2025Reviewed us onGoogle

See the project →

3,500 sq. ft. roof in East Windsor, NJ Nearby · East Windsor

East Windsor, NJ

A New Roof and 36 Panels

Client since July 2020

I was very happy with the job Green Sun has done and the communication they consistently provided. I met someone yesterday who was looking install Solar Panels and they mentioned how painful the sales presentation was (with a very high pressure approach). I told them…

2021Reviewed us onAngi

See the project →

Questions from Hamilton homeowners

SolarAre north-facing panels a bad idea?

They generally produce less annual energy in New Jersey than comparable south-facing panels, but they are not automatically unusable. Roof pitch, shading, the economics and the space available all matter, and a production model should show the expected output before north-facing modules go into a design.

SolarDoes a third-party electricity supplier prevent going solar?

Not necessarily. New Jersey's net-metering rules contemplate customers taking supply through Basic Generation Service or a third-party supplier, though billing arrangements can differ. The supplier contract is worth reading, particularly on exported energy and the annual true-up.

RoofingDo I need a permit to replace my roof in Hamilton, NJ?

Often yes, but the exact permit path depends on the municipality and scope of work. New Jersey's Uniform Construction Code governs permit requirements, and local construction offices administer them. A straightforward re-roof may be handled differently from structural deck repairs, framing changes, skylights, or other alterations, so the contractor should confirm the local requirements before work begins.

RoofingIs a roof replacement noisy?

Very. The old roof is being torn off and thousands of fasteners are being driven into the deck above your head. Anyone working from home may want to plan around it, pets can find it distressing, and fragile items on attic shelves or hanging on walls immediately below the roof are worth securing beforehand.

RoofingDoes a roof need replacing simply because it is twenty years old?

No. Two roofs laid in the same year age very differently depending on ventilation, sun exposure, tree cover, workmanship, storm exposure, pitch and how much moisture the attic has been carrying. An inspection tells you far more than a birthday does.

See every project we have completed →

Scroll to Top