4.9Rated by 9,800+ homeowners nationwide
Helios designs, installs and services premium solar and battery systems for homes and businesses across 14 states — backed by a 25-year whole-system warranty.
About Helios
Since 2008, Helios has designed, installed and maintained solar and storage systems for more than 48,000 homes and businesses. We do every part of the work ourselves — so we answer for every part of the result.
How we workHelios at a glance
As of December 2025
What we do
One company responsible for design, permitting, installation, financing and long-term care.
Payment plan
Pre-qualifiedMonthly payment
$142 /mo
$0 down · 20 years · 6.99% APR
Purchase, loan, lease or power purchase agreement, compared side by side on total lifetime cost.
Energy today
LivePanel-level production data in the Helios app, with our operations center watching every system 24/7.
System coverage
HX-48219All components covered
One 25-year warranty covering equipment, labor and roof penetrations — serviced by our own technicians.
Our standard
Our crews are salaried employees, trained and certified in-house, and accountable to the same team that designed your system.
Every system is designed and stamped by licensed Helios engineers.
NABCEP-certified installers employed by Helios — never day labor or subcontractors.
A dedicated project manager from first survey through utility switch-on.
The team that installs your system is the team that maintains it.
How it works
Most projects are producing power within eight weeks. You have one project manager throughout.
Week 1
We review your energy use, goals and property, then survey the site in person or by drone.
Weeks 1–2
Our engineers design the system and you receive a fixed-price proposal with a full savings forecast.
Weeks 3–6
We secure permits and approvals, then install — typically in one to two days for a home.
Weeks 6–8
We connect to the grid, commission monitoring and remain responsible for the life of the system.
Savings estimate
Adjust the inputs to model a typical Helios system. Your proposal replaces this estimate with an engineered design for your actual roof.
State, utility or city rebates you qualify for. Your advisor confirms these in your proposal.
Estimated 25-year savings
$65,541
Break-even in year 11
Cumulative energy cost
Illustrative estimate using state-average rates, 3% annual utility escalation and a 90% usage offset. Home estimates exclude the federal residential credit, which ended for systems installed after 2025. Business estimates include the 30% investment tax credit where eligible. Loan modeled at 6.99% APR over 20 years. Actual results vary.
Get my exact proposal
Selected projects
Commercial · Austin, Texas
A 640 kW rooftop system across a 180,000 sq ft distribution center, delivered in eleven weeks without interrupting operations. Helios now operates and maintains the system under a long-term service agreement.
Residential · Scottsdale, Arizona
12.4 kW with whole-home battery backup.
Multi-family · Denver, Colorado
96 kW shared system serving 24 units.
Operations & maintenance
3,200 systems maintained at 99.6% uptime.
Client perspective
“Helios delivered 640 kilowatts across our distribution center on schedule and on budget. Their team now runs the system for us, and our energy costs are down forty-one percent.”
Customer rating
4.9 / 5
From 9,812 verified reviews
Warranty
25 years
Equipment, labor and roof penetrations
Industry standard workmanship coverage: 10 years
Fleet uptime
99.6%
Monitored systems, 2025
Coverage
Local teams handle every survey, installation and service visit, so help is never more than a short drive away.
Most residential systems range from $18,000 to $38,000 before incentives, depending on size and equipment. Your proposal is fixed-price and includes every cost, from permits to commissioning.
Savings depend on your roof, usage and utility tariff. Most Helios homeowners reduce their electricity costs by 60–90%. Your proposal includes a 25-year forecast specific to your property.
Installation typically takes one to two days for a home. Including design, permitting and utility interconnection, most systems are operating within six to eight weeks.
Our 25-year warranty covers panels, inverters, racking, workmanship and roof penetrations. If any part underperforms or fails, we repair or replace it at no cost.
No. Every system is designed by Helios engineers and installed and serviced by salaried Helios crews.
You can purchase outright, finance with a loan, or choose a lease or power purchase agreement. We present each option side by side so you can compare the total cost.
Get started
Tell us a little about your property and a Helios advisor will prepare a complete proposal.
An advisor responds within one business day.
