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IntegrateSun, LLC

Backed by 37 years of experience, over 7,000 projects across 12 states, & Elite+ rating on EnergySage, IntegrateSun delivers reliable & affordable solar systems. From permitting and financing to final inspection, we manage every step of the process to ensure a seamless installation. We’re committed to making your switch to solar successful, easy, and rewarding.
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4.6
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EnergySage Rating
4.6
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We founded IntegrateSun with a personal dream that has since evolved into a clear vision: to be a support system for the one shared home of all humans, our irreplaceable Earth...

With over 37 years of combined experience in the renewable energy industry, IntegrateSun has added millions of watts of solar to the US market. Our company headquarter is located in Houston, TX, and we have been chosen to be one of the best solar companies to hire year after year!

* Top 5 Solar Panel Installers in 2023- HTOWN BEST
* Best Solar Companies in Pasadena- Expertise
* Top Solar Financing Companies in Houston- Avancapital
Year Established
2010
Phone Number
855-999-1850
Reasons Why You Should Work With Us
  1. Awarded "Top 5 Solar Panel Installers " by HTOWN BEST

  2. Selected "Best Solar Companies in Pasadena" by Expertise

  3. Pearl Certification backed by the Department of Energy. Only 5% of solar contractors are Pearl certified

Elite+ EnergySage badge

Elite+ installers are the most experienced, chosen, and celebrated companies on the Marketplace, having provided exceptional service to a high volume of shoppers for at least a year.

We speak

English

As we are giving 25 year workmanship warranty. IntegrateSun has setup after sales services offices in Texas & Georgia. They are only being used for aftersales purposes.
IntegrateSun usually takes 6-8 weeks to install residential solar panels if no permits or HOA approvals are required. If permits and/or approvals are required for the property location, then the timeline will increase depending on the speed of the process
You can call us at 855-999-1850 or email the project management team at pm@integratesun.com. We will resolve the problem under our 25 year workmanship warranty.
We prefer the solar panels which are made in USA and have long life of at least 25 years with backed manufacturer warranties. We offer Qcell, Silfab, Aptos ,REC, Mission Solar panels and more!

Reduce your reliance on the grid by generating your own electricity with residential solar systems. During outages, you’ll enjoy the benefits of the power stored in your system, and in the summer when your A/C sends consumption soaring, the extra power will be a welcomed relief!

Services Offered

  • Installation
  • Financing
  • Energy Auditing
  • Roofing
  • Electrical Contracting
  • Solar Repair & Maintenance
  • Community Solar

Our team has over 37 years of combined experience in the solar industry converting homeowners over to efficient & renewable solar energy.

Workmanship Warranty

25 Years Labour Warranty
25 Years Production Warranty
25 Years Linear Production Warranty
25 Years Product Warranty

Licenses

Electrical Contractor License #35074

Insurance

The company is fully Insured and Bounded
General liability, Worker Comp, Commercial Auto
$1,000,000 liability insurance per occurance

Certifications

Panasonic Certification
SolarEdge Certification
Enphase Certification
Generac Certification
LG Chem Certification
REC Certification
Solar Insure Certification

Manufacturer Certifications

  • Authorized Solar Installer
  • PWRpartner
  • REC Certified Solar Professional
  • Sungage Financial Certified Partner
  • Tesla Powerwall Certified Installer

What Customers Are Saying

4.6
496 reviews
4.6
Average Rating 496 review(s)
Response
4.6
Quality
4.7
Value
4.7
Service
4.6
Leave a Review
EnergySage Shopper
Hoping for installation by December 31.

I have noticed that the owner has personally responded to several negative reviews. I have sent an email to pm@integratesun. I hope this review will get their attention! I signed a contract on August 26, 2025. Approvals obtained November 13. Panels were supposed to have been shipped last week, but told late Friday that shipper having problems. Almost out of time and stand to lose almost $11,000.00. At this point I am willing to pay extra to expedite the shipping/and/or get a different shipper. Would even consider traveling to Houston from Florida and renting a U-Haul to bring the panels here. Owner, you have written a lot of good stuff about your company. Please prove it by getting my panels installed by the end of the year!

Posted by mhocking on Dec 21, 2025
EnergySage Shopper
Avoid At All Costs - One of the Worst Companies I've Ever Dealt With

I was drawn in by the courteousness and knowledge of the sales rep I spoke with and the good reviews on here. I have regretted it almost every day since signing the contract and will NEVER use this company again. I signed my contract in August 2024 after the sales rep gave me an estimated schedule that would have had me with PTO in late November 2024. Sounds great, right? Well from almost the day after signing my contract, it was delay after delay after delay. Multiple revisions to the permit application, then multiple revisions to the APS application. While I was told the entire process through install and to PTO would take ~3 months, it took them four months just to get through all of the approvals (late December 2024 they finally had the city permit and APS approval. Only then did they tell me the Powerwall 3s were backordered. Not one mention until four months after I signed the contract. I was given the option of switching to a complete different system or waiting for a Powerwall 3 to become available. Naturally I chose to wait since it was supposed to take less time to become available (within Q1) than it would have to re-do the entire approval process with new plans. About a month later, I got word the battery was available and they'd start the ordering process. The ordering process for the materials then took WEEKS instead of the days the original estimate the sales rep gave me. By the time they finally were getting ready to order the materials, the delivery dates pushed up against a vacation I had planned in March 2025 (which was supposed to be FOUR MONTHS after project completion - more than double the original estimated timeline - based on the original schedule). So we had to delay ordering as I needed to be present to sign for everything. This is where the lies REALLY started. I was told by the PM that the solar panels would be delivered on a Friday, so I burned a remote day at work to stay home and they never showed. No communication from the PM until Monday (apparently its verboten to work the weekend when you lie to a customer), at which point he changed to saying delivery wasn't scheduled and they would be calling me. After the panels were delivered, the install was a nightmare. The sales rep said the installation would be completed over the course of 1-2 days. It turned into like 5-7 days of the installer being onsite over the course of multiple weeks, with many of the days being where the installer would show up and do 2-3 hours of work then leave and come back a day or two later to do more. There were only 1 or 2 days where the installer spent the full day at my place working on my system. Even worse, the installer (who was the same guy that came to do my site visit inspection before the permit application) decided the original plan wouldn't work now. So they had to change the plan and re-submit to the HOA, city, and APS after they finally completed install. More delays. I complain about the delays and the fact that I had already had to make multiple payments on the system by this point and it wasn't even fully installed, and the PM says it's my fault - blaming my one week vacation in March as the primary cause of being over 6 months behind schedule. The city finally returns the plans and they proceed with finalizing the install (another few site visits to do all of the electrical work). Two weeks after they get the "updated" plans back from the city, I fail inspection. Then they finally realize the city re-approved the original plans since the original permit expired, instead of the updated plans. No one on their team could be bothered to have checked the plans approved by the city were the correct revision, and didn't notice until after the inspection failed. It then took WEEKS to address the inspection failure (see timeline below). Second inspection finally scheduled and passed a month after the initial, failed inspection. Now on to APS approval. APS arrives a few days after and fails the install due to labeling issues. New labels sent, installer comes out to install, APS fails again. This happens a third time before APS leaves a note stating exactly what is wrong with the labels, to which the PM says "at least we know what they want now". Yes - they failed the meter install multiple times and GUESSED at what was wrong with the labels rather than contacting APS for more information. Well through all of this, the last label installation is completed in November 2025 and we're now waiting for APS for the fourth time - it takes weeks this time. At this point, I'm pissed and sending the PM e-mails each time the date he gives me comes and goes or when milestones hit (like my 9th payment on an incomplete system). He finally calls APS and has the audacity to point out he had to wait on hold for "almost 30 minutes" as if that is such a magnanimous thing to do when we're over 10 months delayed on a project I paid them over $32,000 for. I finally get PTO on December 3, 2025, and power the up the system per the instructions I was given. Powerwall doesn't work. It worked when the tech tested it back in June, but in the five months it had to sit idle, it stopped working. No data through the Tesla app, nothing going out through the solar meter. I immediately inform them. I hear nothing for almost a week beyond "we're waiting for Tesla" and that they should hear from Tesla on Monday, December 8, 2025. After hearing nothing all week, I reach out on Friday, December 12 to find out they had scheduled a site visit without consulting me. I re-arrange my Sunday for them only for the tech to be a no-show without even calling me. After reaching out to the support lead Sunday night, I find out I now have to wait until Wednesday, but it would be first thing Wednesday. I informed them I had a hard stop in the early afternoon so everything had to be done in the morning. Wednesday comes along, nothing. Finally late morning, PM e-mails me and says the tech will be there late. I remind him I am unavailable late and asked why it changed (this is far from the first time they tell me one thing, only for it to change) and point out that they lied to me about the reason the tech didn't show on Sunday - a text was inadvertently sent to me instead of the support lead which confirmed the tech never was going to show on Sunday like they told me. Magically, the tech is able to come over 30 minutes later, and is visibly upset and blaming me for the system not working (saying I must have "forgot" some step in the startup, or that it's because my WiFi "isn't good enough", even though no other devices, including others connected to the same network from the same location such as my L2 EV charger have had no issues). At least it finally starts working and I finally have functioning solar system on December 16, 2025, just over a week shy of 16 months since I signed the contract in late August 2024. Every step of the way, it was a blame game by the PM. My fault for taking a vacation, city's fault for inspecting the wrong plans when the permit expired, APS' fault for not telling them what to do. And the PM was one of the most condescending people I have ever had the displeasure to work with. After every delay, every screwup by them, he would ask me for patience. The amount of times I heard "please be patient" and was asked for "just one more time" is unbelievable. Even after accepting delay after delay, I wasn't being "patient" enough when I dared call them out on their THIRD failure from APS. Timeline: August 27, 2024 - Contract Signed September 6, 2024 - Site Survey completed by installer September 23, 2024 - HOA submittal September 25, 2024 - APS ICA submittal October 1, 2024 - HOA approval October 3, 2024 - APS requests additional information October 17, 2024 - APS requests additional information October 29, 2024 - City permit application November 8, 2024 - APS approval November 21, 2024 - City requires revisions ----- This is now past where the long end of the estimated timeframe I was given by the sales rep had me getting PTO and they're not even through the permit process yet ---- December 9, 2024 - Revisions submitted to city December 26, 2024 - City permit approved January 3, 2025 - First time informing me of the backorder on PW3, asking if I want to wait or change to a different system February 11, 2025 - Battery is available, proceeds to start with ordering March 13, 2025 - Ordering finally starts to go through and will arrive while I'm out of town, so ordering is held. March 24, 2025 - I get back from vacation, and then approve ordering again April 2, 2025 - first order submitted April 15, 2025 - Solar panels are delayed April 18, 2025 - Battery is finally delivered April 22, 2025 - Panels are delivered May 5, 2025 - Remaining supplies delivered May 9, 2025 - Site visit by the installer to plan installation May 15, 2025 - Installation begins May 16, 2025 - Installation continues, PM indicates the original panel layout won't work (as my roof supposedly doesn't support tilt legs) and suggests changes May 20, 2025 - Installation continues, supplies are missing May 23, 2025 - missing breaker delivered May 27, 2025 - Installation continues, part ordered was wrong June 3-9, 2025 - Installation continues a couple days in this window, I don't have exact days marked, but promise was by June 13, installation would be complete. June 10, 2025 - HOA approves revised panel layout June 27, 2025 - City permit revision approved ~July 20, 2025 - New part finally arrives July 15, 2025 - Installation is supposed to be complete (doesn't) July 21, 2025 - Installation continues and FINALLY completes July 30, 2025 - First city inspection, failed July 31, 2025 - City permit revision submitted August 11, 2025 - Revised permit approved August 26, 2025 - City inspection passed September 11, 2025 - First APS meter swap rejection September 23, 2025 - Installer visit to address label issue October 1, 2025 - Second APS meter swap rejection October 9, 2025 - new labels arrive October 15, 2025 - Installer visit to install second round of updated labels October 22, 2025 - Third APS meter swap rejection October 24, 2025 - third round of labels arrive October 30, 2025 - Installer visit to install third round of updated labels December 3, 2025 - PTO issued, PW3 not functioning correctly December 17, 2025 - Tech finally visits, re-commissions PW3, system finally functional.

Posted by iceman559 on Dec 20, 2025
EnergySage Shopper
Delay, Delay, Delay

Nearly every deadline of our project has been missed. We have been through 4 different project managers with each previous going out with medical issues. Communication has been poor. Project management has been poor. The entire project has resulted in high stress, frustration, and many sleepless nights.

Posted by soberheim on Dec 02, 2025
EnergySage Shopper
Solar plus Battery

Very competitive price. Excellent feedback and response times. As of this post, I’m still within the first month of my system being active

Posted by erichenderson1983 on Dec 20, 2025
EnergySage Shopper
Seven Months and Waiting for Installation

I signed a contract for installation of a solar system with Integrate Sun LLC on June 10, 2025. Their cost sheet included a 30% federal solar tax credit ($7,000) I would receive. The credit is no longer available in 2026, meaning installation needs to be complete by the end of 2025 in order for me to be eligible. IntegrateSun LLC did not secure permits until October 24, 2025. The contract said they are required to install the system within 30 business days of securing permits. As of December 20, 2025, IntegrateSun LLC is in breach of contract as they have not begun installation of the system, nor have they provided me with an installation date. The project manager, Emma Joseph, has been extremely unresponsive and slow in managing this project to completion. Stay far away from this company if you hope to have your system installed within seven months

Posted by srongley on Dec 19, 2025
EnergySage Shopper
Excellent Installation

Very reasonable prices. End of the year rush was a little bit hectic but understandable. Lily kept me updated on the status of the project. However, once the team delivered the materials and started installing the panels, everything was super smooth. Juan and his team did an excellent job on the installation. It looks great and I would recommend IntegrateSun to others.

Posted by dishyeh on Dec 18, 2025

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