Interstate Electric and Solar
“Justin explains what issues may need to be addressed but he doesn't pressure or try to panic you into making a decision that doesn't fit your situation.”
Best Solar Panel Installers near Littleton, CO
3 of these contractors are based in Littleton; the others serve Littleton from towns including Denver (14 mi), Centennial (8 mi) and Greenwood Village (6 mi).
4 open 24/7 · 13 open weekends · 23 rated 4.5+ · 7 show a license
Data verified October 27, 2026
Planet Roofing and Solar
“We ran into a snag with the building inspector over an old skylight over a covered patio, and even though it wasn't even his fault Jess just ordered and paid for a new custom skylight without asking me for a dime (and it wasn't cheap!”
My Roofer Inc
“Excellence from start to finish at a reasonable cost.”
Roper Roofing & Solar
“We obtained estimates from 3 roofing companies, but JAKE earned our trust and business by patiently walking us through a home repair that happens infrequently for most homeowners.”
Pioneer Home Solutions
“I took off one star due to a fair amount of trash left in the yard after the roof replacement and some communication issues with the sub-contractor who did our painting.”
Klick Solar
“Alec, at Klick Solar, is extremely knowledgeable and was able to explain the installation technology along with the business side of a solar installation.”
The 24 contractors listed for Littleton, CO 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: Littleton, CO
The 24 contractors on this page are rated from 4.4 to 5.0 across 3,223 reviews; 22 have 50 or more reviews and 23 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (94%), responsiveness (90%) and quality (86%). The topics that come up most in reviews of the contractors on this page are "communication", "efficient" and "estimates". 4 are open around the clock; 13 are open on Saturdays and 7 on Sundays. 7 show a license on their websites; 1 lists staff certifications (BPI) and 3 have a BBB rating of A or A+. 11 have ten or more years of experience, the longest 25 years. 4 offer emergency call-outs; 9 offer financing or payment plans; 15 give free estimates; 8 are family- or locally-owned and 2 list coupons or special offers. We have a website on file for all 24 of the contractors on this page; 21 publish a contact page; 19 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.
Do any of these firms say they are licensed?
7 of the 24 contractors here show a license on their websites. Ask what is actually being claimed: an individual credential, a company license and a manufacturer approval are three different things. Each can be checked with whoever issued it, and none of them is checked for you here.
Elite Roofing and Solar
“Chad helped us with multiple roof inspections over the years, and after a hail storm last year it was finally time to get our 19 year old roof replaced.”
Reenergizeco
“There was an issue with the original attic insulation and air sealing work, but to Dexter's credit he resolved the situation and R Eenergize CO did solid work on a second job.”
Impact Energy Solar Installation Denver
“Fantastic customer service and helped me solve a problem with my system that was installed by someone else, i wish i had used this company in the first place.”
ARE Solar
“Our loan payments are about the same as our pre-PV electric bill, and they will be constant, in contrast to the electric bills that would otherwise have increased fairly exponentially.”
Apex Solar Solutions
“I looked at many solar companies talked to many solar sales representatives , had countless meetings to go over what each company can offer, yet all lacked understanding.”
MH Electrical and Solar
“An exceptional and trustworthy company that clearly takes pride in their work and goes above and beyond, so will definitely use them again as needs arise.”
Solar Power Pros
“I was particularly impressed by how hands-off the whole process felt for me; they took care of all the necessary paperwork and permits, making it stress-free.”
Golden Solar
“) Golden Solar does everything in their power to ensure their customers are satisfied, and they are obviously committed to reducing reliance on fossil fuels.”
Vanguard Solar Services
“They had to come out a couple times to get it all done, but they were professional, prompt, the price was reasonable, and the customer service was great.”
Simon Bros. Roofing and Solar
“We've had a roof replaced on a previous home by a different company and can honestly say there was no contest, Simon Bros stands out as a company that provides the best possible quality of workmanship and customer service.”
Energy Advantage Roofing & Solar
“We're located in Arvada and went with Energy Advantage for our solar project, because of their competitive pricing, and liked the idea of a roofing and solar paired business.”
Lifetime Roof & Solar
“Our project manager Joel was also super great and checked in multiple times during our instal (which was not fun considering we had three layers of shingles they had to remove!”
Ideal Roofing and Solar
“As a contractor that has to work with tight schedules and other challenges, they keep me updated and informed with every step so we can have a seamless project.”
Sopris Solar
“My only complaint would be to nail down internal communication between field staff and the office, we had a bit of a hiccup for getting the survey coordinated.”
Bczc Roofing and Exterior
“We're very grateful for BCZC's responsiveness, professionalism, in-depth industry knowledge (that found about $7,000 of misses from the insurance company), and work ethic.”
Elite Solar
“By the end of his presentation, I felt it was irresponsible to NOT have a solar panel system on my new home and I couldn't be happier with my choice.”
TKO Electrical
“Ty (apologies if I bungled that, my hearing isn't great) did a great job for us, identifying our issue with our breaker box quickly and getting us back in working order in no time.”
Stone Electric & Plumbing
“He solved our electrical issues and also installed an electric vehicle charger - the installation of which required a team to dig and cement in the post.”
Why these companies made our list
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