Klausmair Construction
“Did our job in a day, cleaned up after themselves, were very polite and Evan even did me an extra personal favor which was extremely nice of him.”
Best Solar Panel Installers in Lancaster, PA
12 contractors listed · 4 in Lancaster · 1 open 24/7 · 5 open weekends · 11 rated 4.5+
Data verified November 6, 2026
KC Green Energy
“Things could not have been more simple from the 72 panel 440 watt solar drawings and presentation , to the courteous / professional installers.”
Bright Eye Solar
“Their install crew was top notch and professional - the inspector that came to see the final product was impressed with their work and commented on it.”
US Solar Development
Zimmerman's Roofing
“Additionally, they performed an outstanding site clean-up after the job (a problem I have had with many trades who simply leave a mess that I must clean up).”
Paradise Energy Solutions
“Even after the project completed, the Paradise process manager reached out to me to provide me all the information I need to send to my electric company for a rebate....”
The 12 contractors listed for Lancaster, PA design and install rooftop solar and battery systems. Each entry repeats what the company publishes about certifications, the equipment it fits and its hours, together with star ratings and comments drawn from public reviews.
Area overview: Lancaster, PA
4 of the 12 contractors we list are based in Lancaster; the other 8 serve Lancaster from towns including Manheim (10 mi), New Holland (13 mi) and Ronks (8 mi). 11 of the contractors on this page have a rating, from 4.6 to 5.0 across 1,246 reviews; 6 have 50 or more reviews. The topics that come up most in reviews of the contractors on this page are "communication", "informative" and "quality". 1 is open around the clock; 5 are open on Saturdays and 3 on Sundays. 1 shows a license on its website and 2 have a BBB rating of A or A+. Domain records put 6 websites of the contractors on this page at ten or more years old; the oldest dates from 2005. 1 offers emergency call-outs; 5 offer financing or payment plans; 3 give free estimates; 2 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 11 of the contractors on this page; 8 publish a contact page; 7 list a public email and 2 take bookings online. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
Can a survey happen outside working hours?
Weekend hours appear for 5 of the 12 contractors here, which is often when a roof survey is easiest to arrange around work. The survey itself wants daylight and dry weather, since someone has to get onto the roof or fly a drone over it to check the covering and measure shading.
Belmont Solar
“They were great at communication, installed ahead of schedule, we courteous and informative on site, and really good and making sure we understood things post-sale.”
Reamco Electric
“I highly recommend Vlad and his team as they use High Quality Fixtures, Hardware & Materials and focus on the longevity of your structure”
Green Way Solar
“Please consider greenway solar if you are looking for a fair deal with a crew that is meticulous about their work”
Twilight Renewables
“Brett is honest and upholds his core values, so you can be sure that you will get truthful information, a quality installation, and excellent customer service.”
VS Solar
“She is very thorough and explained everything and has continually checked in and assisted me with the technology aspects when I needed it.”
Advanced Solar Ideas
“All your solar needs from the smallest unit to the sky is the limit.”
Why these companies made our list
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