
1. Look for a True Turnkey EPC Partner
The top solar companies provide Engineering, Procurement, and Construction (EPC) services under one roof. That means they handle everything — from feasibility analysis and system design to procurement, permitting, and construction.
When one firm takes responsibility for the entire project, you avoid finger-pointing between subcontractors, eliminate gaps in accountability, and ensure your system performs as promised.
At Big Sun Solar, our in-house engineering and design teams manage every detail of your system — ensuring quality, safety, and compliance from start to finish.
2. Proven Track Record and References
The best solar installers in Texas can point to a long track record of successful commercial projects. Look for companies that publish project portfolios, case studies, and customer testimonials on their website.
Texas has a diverse commercial solar market — spanning municipal, private, and nonprofit customers — so the most experienced firms will showcase a wide range of project types and industries.
Big Sun Solar has deployed hundreds of commercial and institutional projects across Texas, from municipal facilities and schools to multifamily properties and private enterprises.
3. Professional Presence and Industry Credentials
Professionalism matters in construction. Top EPC firms maintain:
- Licensed electricians and NABCEP-certified technicians.
- A Professional Engineering (PE) license to seal system designs.
- Company-branded trucks, safety equipment, and dedicated field crews.
When you visit a job site or a company’s office, pay attention — if construction crews are arriving in personal vehicles, that can indicate a smaller or less established operation.
Big Sun Solar’s field teams are fully employed, trained, and equipped with company-owned vehicles and tools — reflecting our commitment to professionalism and safety.
4. Financial Strength and Bonding Capacity
A strong solar EPC firm should be able to secure bid, performance, and construction bonds. Bonding capacity is a clear indicator of financial stability and a firm’s ability to stand behind its work.
If a company cannot provide bonding, it may signal limited financial resources or lack of experience with larger commercial projects.
Big Sun Solar is bondable and fully insured, providing clients with the financial security needed for large-scale installations.
5. Evaluate the Website and Portfolio
A reputable solar EPC will make its expertise clear the moment you visit its website. Look for:
- High-quality project photos
- Descriptions of past clients
- Case studies and testimonials
- Clear information about services and team credentials
Big Sun Solar’s website features a comprehensive portfolio of commercial, municipal, and multifamily projects across Texas, demonstrating our capability to deliver at every scale.
6. Why Big Sun Solar Is One of Texas’s Leading Commercial EPC Firms
Big Sun Solar provides turnkey EPC services with in-house engineering, procurement, and construction capabilities. Our clients trust us because we:
- Manage every aspect of the project internally
- Employ NABCEP-certified technicians and licensed electricians
- Deliver proven results across hundreds of commercial installations
- Maintain bonding capacity and financial stability
- Serve municipal, private, and nonprofit customers throughout Texas
If you’re looking for one of the best commercial solar installers in Texas, Big Sun Solar is ready to guide your project from concept to completion — with quality, accountability, and experience you can trust.
Ready to explore commercial solar for your business or property?
Contact Big Sun Solar to schedule a consultation with our engineering team.






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