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Roof and Solar Reviews
Lewiston, Maine

Roof + Solar Bundle Companies in Lewiston

Lewiston is Maine's second-largest city and one of the state's most significant solar opportunity markets. The city's extensive stock of mill-era and older colonial homes — many with roofs well past their serviceable life — makes roof + solar bundles an attractive proposition for homeowners looking to address deferred roof maintenance while cutting electricity costs. CMP's $0.27/kWh rates and Maine's 1:1 Net Energy Billing program mean Lewiston homeowners can achieve meaningful monthly savings with the right system.

Very Good
Solar Potential
~$0.27/kWh
Electric Rate
$1,900–$3,000/year
Est. Annual Savings
9–13 years
Est. Payback Period

Why Lewiston Homeowners Are Going Solar in 2026

Lewiston homeowners face some of the highest electricity costs in Maine, with CMP rates at $0.27/kWh and climbing. Maine's Net Energy Billing provides full retail-rate credits for excess solar, and Efficiency Maine Home Energy Loans offer below-market financing (7.99% APR) to make the upfront investment manageable. With no federal ITC available in 2026, leveraging state and utility incentives is more important than ever — and 2026 remains a strong year to act before potential future policy changes.

Available Incentives for Lewiston Homeowners

Lewiston homeowners qualify for Maine Net Energy Billing (1:1 retail credits via CMP), a 100% property tax exemption on added solar value, 5.5% sales tax exemption on equipment, Efficiency Maine Home Energy Loans (up to $25,000 at 7.99% APR), and PACE financing in participating municipalities.

Full Maine incentive guide

Our Top Pick for Lewiston

Editor's Choice — Lewiston

Sunergy Solutions

Londonderry, New Hampshire

3.6
out of 5.0

<p>Sunergy Solutions has accomplished something remarkable in just five years: they've built an operational footprint spanning seven states and a customer satisfaction record that most solar companies never achieve. The 146 five-star reviews on SolarReviews — all five stars, with an average of 4.91 — reflect genuine customer satisfaction, not just a handful of well-timed referral requests. For New England homeowners in New Hampshire, Vermont, or Maine who struggle to find experienced local solar installers, Sunergy is one of the few companies with real regional infrastructure and a proven track record of delivery.</p> <p>The Enphase Platinum Installer credential is worth noting. Enphase is one of the two dominant inverter manufacturers in residential solar, and Platinum status reflects high installation volume, technical training, and demonstrated customer satisfaction on Enphase systems. That kind of manufacturer certification is a meaningful quality signal, particularly for homeowners who want panel-level monitoring and the reliability of a well-supported microinverter system. NABCEP certification adds another layer of professional credibility.</p> <p>Where we'd encourage careful conversation: Sunergy's roofing work involves subcontractors in some states — common for companies with wide geographic coverage but worth understanding before signing. Ask specifically who is performing the roofing work on your project. Additionally, Sunergy's financing options are narrower than some competitors — they don't offer leases or PPAs by choice, which is a principled position but limits options for homeowners who need a $0-upfront structure. Their workmanship warranty of 20 years is solid, though it falls short of Evergreen's 25-year standard. Founded in 2020, they're also one of the newer companies in our review — the five-year track record is encouraging, but it's shorter than more established competitors like Trinity Solar (1994) or Evergreen Solar.</p>

146 five-star reviews on SolarReviews (4.91/5) — one of the strongest independent review records in the region
Enphase Platinum Installer status — top-tier certification from one of the leading inverter manufacturers
NABCEP certified technicians — the solar industry's most rigorous professional credential
Broadest service area of any company reviewed — 7 states including all of New England plus Virginia

All Companies Serving Lewiston

These companies are rated and reviewed by our editorial team. All ratings reflect our 5-category methodology.

1

Sunergy Solutions

Top Pick

Londonderry, New Hampshire

Solar + roofing + gutters across 7 states — broadest coverage of any company reviewed, with 146 five-star SolarReviews and Enphase Platinum Installer status

3.6
/ 5.0
4.9★ Google

Lewiston's Electric Utility

Central Maine Power (CMP)

Lewiston is served by Central Maine Power (CMP), with electricity rates averaging ~$0.27/kWh — among the highest in the region. These rates are what make solar so financially compelling for Lewiston homeowners: every kWh your solar system produces is worth more when rates are high.

Avg Electric Rate
~$0.27/kWh
Typical System Size
8–11 kW

Lewiston Home & Roof Profile

Understanding the local housing stock helps you assess your own home's solar suitability. Here's what's typical for Lewiston:

Typical Home Age

Predominantly 1880–1950, dominated by mill-era multifamily and working-class colonials

Common Roof Types

  • Asphalt shingle (most common)
  • Flat/low-slope on mill-era multifamily
  • Older standing-seam metal on commercial blocks
  • Some slate in historic neighborhoods near downtown

Roof + Solar Bundle advantage: Lewiston's older homes often have roofs that are due for replacement. A roof + solar bundle replaces your aging roof and adds solar panels in a single project — avoiding the $3,000–$8,000 cost of removing and re-installing panels later when the roof fails. Our guide on how bundles work explains the full economics.

Permits & HOA Considerations in Lewiston

Permit Process

Lewiston requires building and electrical permits for all solar installations, processed through the City of Lewiston Codes Office. Typical turnaround is 2–4 weeks. Lewiston's permitting process is generally straightforward, and the city has no special solar overlay districts. Your installer should handle all permit applications and CMP interconnection paperwork.

HOA & Historic District Rules

Maine's Solar Rights Act (Title 33, Chapter 28-A) protects Lewiston homeowners from HOA restrictions that unreasonably prohibit solar. Most Lewiston single-family neighborhoods have no HOA solar restrictions. Lewiston's densely developed mill neighborhoods feature many multifamily and triple-decker buildings — solar on multifamily requires careful review of shared ownership and utility metering arrangements.

What Can Lewiston Homeowners Save?

Solar savings in Lewiston depend on your home's electricity usage, roof size and orientation, system size, and which financing option you choose. Here are typical benchmarks based on our research:

$1,900–$3,000/year
Estimated Annual Savings
8–11 kW
Typical System Size
9–13 years
Estimated Payback

With $0 down financing (lease or PPA), there's no upfront cost and your monthly energy payment is typically 25–45% less than your current Central Maine Power (CMP) bill — you start saving on day one. With purchased systems (cash or loan), payback typically ranges from 9–13 years, after which your electricity is essentially free. Read our guide on $0 down solar financing for a full breakdown of how these numbers work.

Frequently Asked Questions — Lewiston Solar

Can Lewiston multifamily homeowners go solar?

Yes — but it requires more planning than single-family installations. In Lewiston's dense mill-era multifamily neighborhoods, shared-roof buildings need agreement among all owners (or a single owner authorization for rental properties). Maine's Community Solar program, offered through CMP, also allows homeowners to subscribe to off-site solar arrays without rooftop installation — ideal for renters or homeowners with shaded or challenging roofs. Ask your installer about both options.

How do Efficiency Maine loans work for Lewiston homeowners?

Efficiency Maine's Home Energy Loan program offers fixed-rate financing at 7.99% APR for solar installations, with loan amounts up to $25,000 and terms up to 15 years. The loans are available through participating local lenders and can be combined with Maine's property and sales tax exemptions to reduce the net project cost. For Lewiston homeowners who want to own their system outright but need financing, the Efficiency Maine loan is typically better than standard home equity options for smaller loan amounts.

Which solar + roof bundle company is best for Lewiston homeowners?

Sunergy Solutions serves the Lewiston-Auburn area and is our top pick for Maine homeowners. They offer bundled roof replacement and solar installation with experience in CMP interconnection and Maine permitting requirements. See our Maine company rankings for more details.

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Lewiston Solar Stats

Solar PotentialVery Good
UtilityCentral Maine Power (CMP)
Avg Electric Rate~$0.27/kWh
Typical System8–11 kW
Est. Annual Savings$1,900–$3,000/year