MacGreine Energy Corporation


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Mac Greine Energy Company is the Green / Solar Energy Division of Mac Greine.

We are a Roofing, Solar, Energy Efficiency, and Sustainability Company.
Our ownership has over 15 years in the industry, and we have built a reputation for having the best customer service, installation, and project management.

Our HQ is in Los Angeles with regional offices in Clearwater (FLA) , Watertown (NY) and Indianapolis (IN).

By combining our outstanding product lines with in-depth knowledge, support services, financing opportunities, and custom turnkey solutions, you can be sure that Mac Greine Energy Corp is your best choice.


Passion, Experience, Customer Focus

We aim to deliver high-quality projects on schedule that fit your budget.
We will maintain the highest levels of professionalism and honesty.
We earn our reputation, and
we will want to repeat business with our customers, so
will ensure that you have a good experience.

We Love What We Do and It Shows!

Daryl Trew


Daryl has over 26 years in management and over 12 years in the renewable industry.
He has been recognized as an expert in Solar PV and Solar Thermal Design.

Richard Hassan


Richard brings more than 25 years of management experience in roofing, facilities and construction management.
Moises Martinez

Roofing PM

Moises has been in the family roofing business for 25 years specializing in residential, industrial and commercial.
Jorge Reyes

Solar PM

Jorge has been working in the solar industry since 1989 and has received his OSHA 10 and OSHA 30 cards. He specializes in photovoltaic solar, domestic hot water, and pool heating (residential and commercial).
Lori Trew

Stretegic Planning

Laurie has over 30 years in service
and warranty administration.
Makena Trew


Makena has been involved in marketing for 2 years
​​​​​​​and has won several awards in the marketing field.

Eliminate Your Electric Bill

Virtually Maintenance Free

Financing Available


Save Up to $1500 Per Year

Solar Electricity and Solar Hot Water
Systems Save Property Owners Money!

Never pay for an electric or gas bill again. Solar electric power is the way to keep money in your pocket rather than paying tens of thousands of dollars on your property. Homeowners with a family can save up to one hundred thousand dollars over a 25-year period, and business owners can save even more.
Benefits of Switching to Solar
Solar does not only benefit you because you save money on your electricity bill; solar also has a positive impact on the environment. Solar energy is sustainable and renewable, which means it will never run out. Also, solar energy requires very little maintenance and will increase the value of your home with time.

We offer a number of financing options that don't require a major investment of capital up front, including long-term lease agreements and Power Purchase Agreements (PPAs), which allow you to purchase electricity from a third-party investor who pays to install a system at your site..
 Financial Engineering

We have in depth knowledge of Tax Credits, Rebates and Depreciation. Our Payback Analysis Calculator shows your forecasted return on investment (ROI) and long term savings. Some Commercial returns are as little as 2-5 years.
 Government Incentives

Take advantage of huge rebates from both local and state and federal governments. You must act fast as rebates are on a declining schedule as more solar systems are installed throughout the country.
Whether Commercial, Agricultural, or Residential:

We Do It All!
Solar Panels

Battery Backup

Solar Thermal Panels

Solar Water Heaters


Energy Efficient Lighting


MacGreine provides services for Commercial, Residential, and Agricultural buildings.


Mac Greine provides products  for Commercial, Residential, and Agricultural buildings.
These include solar panels, solar inverters, solar hot water systems, and others.


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Below You'll Find Pictures of A Selection of Our Work.

Click the Link Below to See More Photos!

Commercial Solar PV

This picture shows the large array of solar we provide at the LA Dye plant.

Commercial Solar Hot Water

This picture shows the solar hot water systems installed at the LA Dye plant.

Commercial Roof Coatings

This picture shows the complete roof coating we provided for a building in Redondo Beach.

Residential Solar

This picture shows how solar panels can be used to cover a walkway at a Santa Clarita residence.

View More Pictures

  • Los Angeles County​​​​​​​
  • Orange County
  • Ventura County
  • Riverside County
  • Santa Clara County
  • San Bernardino County
  • San Diego County
** We do work on special projects in other areas depending on requirements, length of project, terms of engagement, and whether or not solar power in the installation area is economically feasible.


See How We Eclipse Our Competition

Anthony J.


Daniel A.

Like a ray of morning sunshine!

World-Class Design Services

Solar Panel installations are not all the same. Workmanship plays a huge factor in the final product. You need a company that has the integrity to do the job right- cutting corners could cause $1000’s in additional repair work.

At MacGreine we’ve built our brand with integrity on every project we’ve ever handled. We make your needs our own and use only the finest materials, techniques and trained professionals.

Project Managed Installation

MacGreine is proudly a full service sales and installation company that can handle all of your solar construction needs from panels to water heaters.  We treat each project as an exciting new opportunity to deliver outstanding quality and value.

Unrivaled Customer Service

Roofs are built for the practicality, but it's also an opportunity to make a lasting impression. That’s why we give you more options than any other California roofer when it comes to colors, textures, patterns, pitches and materials.

From gorgeous glass solar roofs to tile and lifetime composite shingles, we always present you with a wealth of options and truly flawless craftsmanship.

Funding Your Project

Cutting through the red tape can save you time and money. 

Our experts handle can help you get the project funding you need! 

Check Out Our YouTube Channel For More Info and Ideas!
Contact Us and Tell Us More
* **




1507 East Maple Ave, Unit B
El Segundo, CA 90245


P: 310-428-1749




Monday           7:30AM-4PM

Tuesday           7:30AM-4PM

Wednesday     7:30AM-4PM

Thursday         7:30AM-4PM

Friday               7:30AM-4PM

Saturday                    Closed 

Sunday                       Closed