Delaware Exteriors has spent 20 years establishing themselves as the premier home exterior contractor in the First State, and their expansion into solar installation has been one of the most natural transitions we have seen in our rankings. When a company already understands roofing systems, structural loads, waterproofing, and building envelope performance, adding solar panels becomes a logical extension rather than an entirely new skill set.
The company earned the number one ranking in Delaware because of their perfect 5.0-star Google rating across 505 reviews, an exceptional volume of positive feedback for a state with a relatively small population. Their BBB record is spotless, and their NABCEP certification demonstrates investment in solar-specific training beyond their roofing background.
What makes Delaware Exteriors different from dedicated solar companies is their ability to assess roof condition, make repairs, and install the array all under one contract. Homeowners frequently note that this bundled approach saved them thousands compared to hiring separate roofing and solar contractors.
The company serves customers throughout Delaware, from the Wilmington suburbs in New Castle County through Dover and Sussex County. Their familiarity with building codes and utility interconnection requirements across all three counties streamlines the permitting process.
With a composite score of 74.5, Delaware Exteriors is our top-ranked solar company in Delaware for 2026.
“Highly recommend
They did a fantastic job on our roof. Very happy. Wanted to also thank Austin for helping us through the process and keeping informed on things . Will be using Delaware Exteriors...”
Corinne s.
“The team at Delaware Exteriors is exceptional. I had them replace a leaking French door and sinking back steps. From start to finish they were highly professional. They communicated with me...”
Timothy R.
“I recently worked with Delaware Exteriors to have my roof replaced, and the entire experience was outstanding from start to finish. My project manager, Austin Abbott, was professional, knowledgeable,...”
Diane L.
“We called Delaware Exteriors to get a price for a new roof. Their rep Austin came over and explained the entire process from beginning to end. We were sold…he was so knowledgeable and we felt...”
Jennifer H.
“We recently had our 110-year-old original slate roof replaced and couldn't be happier with the results. Choosing the right company was important to us—we wanted to preserve the historic character of...”
Tina B.
“Austin and his crew were very professional and polite.Did awesome job I would recommend Austin to anyone who needs a new roof Austin helped me fight the insurance company ro get my roof fixed I can't...”
Greg K.
“All windows in the house were installed as planned. Easy billing with no surprises. One day installation. New shutters installed as agreed. Great Windows, great service and easy to communicate with....”
Robert Y.
“Austin and his crew are great. Have large roof, 41 squares, done in 12 hours non stop. Would highly recommend to anyone who needs a new roof. Very competitive pricing.”
Corinne s.
“The team at Delaware Exteriors is exceptional. I had them replace a leaking French door and sinking back steps. From start to finish they were highly professional. They communicated with me...”
Timothy R.
“I recently worked with Delaware Exteriors to have my roof replaced, and the entire experience was outstanding from start to finish. My project manager, Austin Abbott, was professional, knowledgeable,...”
Diane L.
“We called Delaware Exteriors to get a price for a new roof. Their rep Austin came over and explained the entire process from beginning to end. We were sold…he was so knowledgeable and we felt...”
Jennifer H.
“We recently had our 110-year-old original slate roof replaced and couldn't be happier with the results. Choosing the right company was important to us—we wanted to preserve the historic character of...”
Tina B.
“Austin and his crew were very professional and polite.Did awesome job I would recommend Austin to anyone who needs a new roof Austin helped me fight the insurance company ro get my roof fixed I can't...”
Greg K.
“All windows in the house were installed as planned. Easy billing with no surprises. One day installation. New shutters installed as agreed. Great Windows, great service and easy to communicate with....”
Robert Y.
“Austin and his crew are great. Have large roof, 41 squares, done in 12 hours non stop. Would highly recommend to anyone who needs a new roof. Very competitive pricing.”
Kimberly W.
“Highly recommend
They did a fantastic job on our roof. Very happy. Wanted to also thank Austin for helping us through the process and keeping informed on things . Will be using Delaware Exteriors...”
American Sentry Solar has been in business since 1993, making them one of the longest-operating home improvement contractors to pivot into solar in the Mid-Atlantic region. Founded by President Joe Tunney in Bel Air, Maryland, the company began its solar division in 2009 and now serves homeowners across Maryland, Delaware, Pennsylvania, and Texas. Their 17-year solar track record in the Delaware market gives them a depth of local permitting and utility interconnection experience that newer entrants simply have not had time to accumulate.
The company's customer reviews tell a consistent story. With a 4.6-star Google rating across 435 reviews and a 5.0 rating on HomeAdvisor, American Sentry Solar has built a reputation for professionalism, installation quality, and responsive communication throughout the project lifecycle. Customers regularly cite the thoroughness of their site assessments, the cleanliness of their work areas, and the promptness with which the team answers follow-up questions after the system goes live. Their NABCEP-certified installers bring the kind of credentialed expertise that distinguishes serious solar contractors from companies that treat installation as an afterthought.
American Sentry Solar has partnered with Enphase to offer the Encharge 10 battery storage system, positioning themselves to serve Delaware homeowners who want energy resilience beyond basic grid-tied solar. The company's BBB profile is notably strong: they hold an A+ rating and have been recognized as a BBB Torch Award winner in both 2001 and 2021, an honor that recognizes sustained ethical business practices over time. They also maintain memberships with SEIA and have been featured in Solar Power World's installer rankings.
Our evaluation did identify a small number of reviews mentioning high-pressure sales approaches and pricing concerns. These reports were not widespread enough to significantly affect the company's overall score, but they are worth noting for homeowners who prefer a low-pressure consultation process. The overwhelming majority of verified feedback paints a picture of a well-managed, experienced operation that delivers on its promises.
With a composite score of 71.7 out of 100, American Sentry Solar earns the second-ranked position in Delaware for 2026.
“Had a fantastic experience with American Solar. The information I received during the consultation was clear and any followup questions were quickly addressed. After reviewing several providers, I...”
Shane M.
“Professional, experienced and expectations exceeded. If you want a company who can navigate your solar experience I highly recommend these guys! We had some obstacles to navigate with all of the...”
Michael S.
“We started contact with the company at the Solanco Fair in September. With permits, inspections, and typical red tape they were able to start in roughly ten weeks. They then installed 28 panels in...”
Martin G.
“I had previous experience with American Sentry Solar when i had to replace my roof. American Sentry Solar did a professional removal and re-install of my 4.8 KW, 24 panel PV system. They also...”
Jean S.
“Wonderful experience working with Dean and the whole crew. Even with the challenges of winter weather, they were able to provide a fast and efficient turn around on taking our solar panels down (so...”
Jen S.
“Yesterday my solar panels were installed on my roof! So excited that they came on time and finished sooner than I expected early afternoon. They were all polite and respectful of my home. Before they...”
Temple F.
“From the first interview to the install, this experience has been impeccable! American Sentry Solar’s team have been very helpful, straightforward and responsive. I feel fortunate that I chose this...”
Rachel K.
“Great experience from the sales pitch to the paperwork to the installation and taking care of the tax credit paperwork.
American Sentry Solar make the process so easy.
The man who came to our house...”
Shane M.
“Professional, experienced and expectations exceeded. If you want a company who can navigate your solar experience I highly recommend these guys! We had some obstacles to navigate with all of the...”
Michael S.
“We started contact with the company at the Solanco Fair in September. With permits, inspections, and typical red tape they were able to start in roughly ten weeks. They then installed 28 panels in...”
Martin G.
“I had previous experience with American Sentry Solar when i had to replace my roof. American Sentry Solar did a professional removal and re-install of my 4.8 KW, 24 panel PV system. They also...”
Jean S.
“Wonderful experience working with Dean and the whole crew. Even with the challenges of winter weather, they were able to provide a fast and efficient turn around on taking our solar panels down (so...”
Jen S.
“Yesterday my solar panels were installed on my roof! So excited that they came on time and finished sooner than I expected early afternoon. They were all polite and respectful of my home. Before they...”
Temple F.
“From the first interview to the install, this experience has been impeccable! American Sentry Solar’s team have been very helpful, straightforward and responsive. I feel fortunate that I chose this...”
Rachel K.
“Great experience from the sales pitch to the paperwork to the installation and taking care of the tax credit paperwork.
American Sentry Solar make the process so easy.
The man who came to our house...”
Patrick H.
“Had a fantastic experience with American Solar. The information I received during the consultation was clear and any followup questions were quickly addressed. After reviewing several providers, I...”
Solar Energy World has operated in the Mid-Atlantic solar market for 17 years from their headquarters in Laurel, Maryland, with additional offices in Alexandria, Virginia, Pennsauken, New Jersey, and Tampa, Florida. What sets this company apart from many regional competitors is a policy that our research team considers one of the strongest quality-control indicators in the industry: Solar Energy World never hires subcontractors. Every person who works on a customer's system is a direct employee of the company, fully accountable to its management structure. In a market where subcontractor-driven installations are a leading source of warranty disputes and quality complaints, that commitment to in-house labor is a meaningful differentiator.
The company's review volume is among the highest in the Delaware market. With a 4.6-star Google rating across 899 verified reviews, Solar Energy World has built a customer feedback record that provides a statistically reliable picture of their performance. Their NABCEP-certified designers and installers work with German and American-made solar panels, and the company backs every system with a 30-year warranty, one of the longest coverage periods we have encountered in our state-by-state evaluations. That warranty commitment suggests confidence in both their equipment sourcing and their installation standards.
Solar Energy World holds an A+ rating with the Better Business Bureau and has earned the Certified Environmentally Responsible Contractor designation, a credential that evaluates both business practices and environmental impact. Their service territory spans Maryland, Delaware, Pennsylvania, New Jersey, Virginia, Washington D.C., and Florida, giving them a regional footprint large enough to sustain dedicated permitting and interconnection teams for each jurisdiction they serve.
Customer feedback does include a recurring thread of communication inconsistencies, particularly around project timelines and post-installation support response times. These issues appear in a minority of reviews but were consistent enough that our scoring methodology accounts for them. For homeowners who prioritize responsive communication, it is worth establishing clear expectations during the contract phase about points of contact and response windows.
With a composite score of 71.7 out of 100, Solar Energy World holds the third-ranked position in Delaware for 2026.
“Solar Energy World did a great job installing our new roof panels! The entire process was very easy—the team was organized, communicative, and the final setup looks great. We’re already seeing great...”
Kimberlie S.
“I happened upon Solar Energy World by chance searching Google for ways to save money on my electricity. I set up an appt with Ryan and he was very pleasant and made it easy to understand what we...”
Brett B.
“I began my solar journey getting far too many quotes from local, regional, and national companies. With an absurd amount of quotes and different equipment, I finally got in touch with Nick at Solar...”
Jorge R.
“⭐⭐⭐⭐⭐
⭐⭐⭐⭐⭐
We’ve been customers of Solar Energy World for over 4 years, and our experience has been nothing short of amazing. From day one, Jairo Valderrama helped us, the process was smooth,...”
Everett S.
“I worked with Andy Grygier (sales) to determine if solar was a good option for my family. Andy has offered clear and timely communication throughout the process. From initial consult and estimates to...”
Patrick M.
“I bought solar panels from Solar Energy World 2 years ago and have been very satisfied with my decision to go solar. I worked with Greg, and he designed the perfect system for my house. He also...”
Traci D.
“We had our solar system installed by Solar Energy World in June 2025, and we couldn’t be happier.
Brad Henderson was a delight to work with. He answered all of our questions and provided the perfect...”
Andrew R.
“We've had a great experience with Solar Energy World. Even with a lot of clients to juggle, John Howard has been attentive to questions and making the process run smoothly. Unlike many of the...”
Kimberlie S.
“I happened upon Solar Energy World by chance searching Google for ways to save money on my electricity. I set up an appt with Ryan and he was very pleasant and made it easy to understand what we...”
Brett B.
“I began my solar journey getting far too many quotes from local, regional, and national companies. With an absurd amount of quotes and different equipment, I finally got in touch with Nick at Solar...”
Jorge R.
“⭐⭐⭐⭐⭐
⭐⭐⭐⭐⭐
We’ve been customers of Solar Energy World for over 4 years, and our experience has been nothing short of amazing. From day one, Jairo Valderrama helped us, the process was smooth,...”
Everett S.
“I worked with Andy Grygier (sales) to determine if solar was a good option for my family. Andy has offered clear and timely communication throughout the process. From initial consult and estimates to...”
Patrick M.
“I bought solar panels from Solar Energy World 2 years ago and have been very satisfied with my decision to go solar. I worked with Greg, and he designed the perfect system for my house. He also...”
Traci D.
“We had our solar system installed by Solar Energy World in June 2025, and we couldn’t be happier.
Brad Henderson was a delight to work with. He answered all of our questions and provided the perfect...”
Andrew R.
“We've had a great experience with Solar Energy World. Even with a lot of clients to juggle, John Howard has been attentive to questions and making the process run smoothly. Unlike many of the...”
B.J.
“Solar Energy World did a great job installing our new roof panels! The entire process was very easy—the team was organized, communicative, and the final setup looks great. We’re already seeing great...”
Green Energy Fund rebates available|Net metering at retail rate|Property tax exemption for solar value|SREC program (Delaware Renewable Energy Portfolio)
In Delaware, net metering is available to any customer that generates electricity using solar, wind or hydro resources, anaerobic digesters, or fuel cells.
In Delaware, net metering is available to any customer that generates electricity using solar, wind or hydro resources, anaerobic digesters, or fuel cells.
2.3 Net metering shall be accomplished through a single meter that measures net energy flow during a billing period. 2.3.1 To maintain system safety and ...
2.3 Net metering shall be accomplished through a single meter that measures net energy flow during a billing period. 2.3.1 To maintain system safety and ...
The state's renewable portfolio standard (RPS) has set a target of achieving 25% of its power from renewables by 2026, with 3.5% required to come from solar. In ...
The state's renewable portfolio standard (RPS) has set a target of achieving 25% of its power from renewables by 2026, with 3.5% required to come from solar. In ...
Delaware Electric Cooperative will soon break ground on a four megawatt solar park in Sussex County, Delaware. Twenty acres of solar panels will be installed ...
Delaware Electric Cooperative will soon break ground on a four megawatt solar park in Sussex County, Delaware. Twenty acres of solar panels will be installed ...
Solar energy in Delaware isn't just about the promise of reduced electricity bills; it brings forth a slew of environmental advantages.
*Companies displaying 15 or more years in business are typically established electrical, roofing, or general contracting firms that expanded into solar installation in more recent years. The years shown may reflect the age of the parent organization or a strategic partner, not necessarily the solar division itself. This distinction is worth considering when comparing to dedicated solar installers, as purpose-built solar companies may offer more specialized expertise despite a shorter operating history.
