Meet our featured client in Princeton Junction

A New Jersey home depends on its roof to hold out moisture, wind, and the wear that comes with every passing season. An aging or failing roof puts the whole house at risk, which is why roof replacement in Princeton Junction NJ is work that rewards careful contractor selection. GAF Timberline HDZ roofing systems require precise installation, and choosing a local roofing contractor near Princeton Junction NJ means the crew is accountable to the same region you live in.

Green Sun Energy Services, LLC is locally owned and operated and based in Middletown, NJ. We have been in business since 2010 and are a GAF-certified roofing contractor installing GAF Timberline HDZ roofing systems. In Princeton Junction, Mercer County, New Jersey, we completed roofing installation for one client in 2017, and that client left a review of our work. Those facts are the foundation of this page.

Princeton Junction, NJ

Solar, Generator and Roofing in Princeton Junction, NJ | Panels Off and Back On in 2023

Client since November 2017

Gerald from Princeton Junction, NJ has been a Green Sun Energy Services client since November of 2017, and the house has taken three trades since - including, in 2023, the one nobody plans for.

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

Questions from Princeton Junction homeowners

Standby generatorWill a larger gas meter be needed?

Possibly. A generator can significantly increase a home's maximum gas demand. If the existing meter or service cannot hold the required pressure while supplying the generator and the other appliances together, the gas utility may require an upgrade.

Standby generatorCan a standby generator backfeed the utility lines?

A properly installed and functioning automatic transfer system is designed to prevent it. That is the point of the transfer switch: it stops generator power reaching the utility supply, where it could endanger line workers and damage equipment. Backfeeding is a risk of improvised connections, not of a correctly installed system.

SolarShould the roof be replaced before the panels go on?

If the roof is near the end of its life, replacing it first is often the sensible order, because removing and reinstalling an array later adds labor and materials. The decision turns on roof age, shingle condition, any leaks, the decking, the remaining warranty and how long the solar system is expected to last.

SolarWhat is the difference between kW and kWh?

kW measures the size of the system; kWh measures the electricity it produces or the house consumes over time. An 11.5 kW array might be estimated at 13,100 kWh in its first year. Confusing the two makes proposals look larger or smaller than they are.

RoofingWhat is LayerLock Technology?

LayerLock is GAF technology that mechanically fuses the common bond between overlapping shingle layers. It works together with GAF's StrikeZone nailing area to help installers place fasteners accurately.

RoofingDo HOAs in Princeton Junction, NJ control roof color or material?

Many associations have architectural rules affecting color, shingle style, visible metal, solar integration, and scheduling. Homeowners should obtain required approvals before ordering material or starting work.

RoofingCan a roof warranty transfer to a new owner?

Certain warranties can, subject to that warranty's own conditions and a required notification procedure with its own time limit. It is worth knowing the process before the house goes on the market rather than during the sale, and a transferable warranty is a genuine selling point.

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