Top 10 Best Solar Companies in Selangor 2026 (Ranked by Installations)

Choosing the right solar installer in Selangor is critical — you're trusting them with a RM 20,000-30,000 investment that must last 25 years. This guide compares the top 10 SEDA-licensed solar companies in Selangor based on licenses, warranties, installation quality, customer reviews, and pricing (updated February 2026).

How to Choose the Best Solar Company: 7 Critical Criteria

1. SEDA Registration & EPCC License

ALL legitimate solar installers MUST be registered with Sustainable Energy Development Authority (SEDA) and hold an EPCC (Engineering, Procurement, Construction, Commissioning) license. Without these, your Solar ATAP application will be rejected by TNB.

How to verify:

• Check SEDA's official portal: myseda.seda.gov.my
• Look for EPCC license number on quotations (format: EPCC-XXX-2024)
• Ask for PE (Professional Engineer) certification of their technical team

Red Flag: If a company can't provide their SEDA/EPCC numbers within 24 hours, walk away. They're likely unlicensed.

2. Installation Portfolio & Track Record

Minimum 500 installations to be considered "experienced." Look for:

• Residential projects: Terrace houses, semi-Ds, bungalows
• Commercial projects: Factories, warehouses, retail
• Completed Solar ATAP approvals: Proof of TNB commissioning success rate
• Years in operation: Minimum 5 years (solar companies founded 2019-2021)

3. Warranty Coverage (Panel + Inverter + Workmanship)

Standard minimum warranties:

• Solar Panels: 25-year performance (80% output after 25 years), 10-15 year product defect
• Inverters: 10-year manufacturer warranty (Huawei/Sungrow), 5-year budget brands
• Workmanship: 5-10 year installer labor warranty (roof leaks, wiring issues)

Important: A 25-year panel warranty is meaningless if the installer goes bankrupt in 3 years. Check company financial stability (Suruhanjaya Syarikat Malaysia records, SSM).

4. Panel & Inverter Brands Used

Tier 1 brands (recommended):

• Panels: Longi, Trina, Jinko, Canadian Solar, JA Solar
• Inverters: Huawei, Sungrow, SMA, Fronius, SolarEdge

Avoid no-name brands from Alibaba/Lazada. If the installer can't tell you the exact panel model (e.g., "Longi Hi-MO 7 560W"), it's a red flag.

5. Customer Reviews & Testimonials

Check multiple sources:

• Google Business Profile: Minimum 4.5★ with 50+ reviews
• Facebook Page: Real customer photos (not stock images)
• SEDA Feedback: Complaints lodged with SEDA are public record
• Lowyat Forum: Search company name in Solar Energy subforum

Warning: Some companies pay for fake 5★ reviews. Look for detailed reviews mentioning specific staff names, installation dates, and technical details (e.g., "Encik Ahmad installed our 6kW Longi system on Dec 15, panels are generating 25-28 kWh/day").

6. Pricing Transparency & No Hidden Fees

A trustworthy installer provides itemized quotations showing:

• Panel brand, model, wattage, and quantity
• Inverter brand, model, and capacity
• Mounting structure type (aluminum rail, kliplok, ballasted)
• SEDA submission fee
• TNB meter commissioning cost
• Monitoring system (app access)

Hidden costs to watch for:

• Scaffolding (RM 800-2,000 for 3-storey buildings)
• Roof reinforcement (RM 1,500-3,500 for weak roofs)
• Earthing upgrade (RM 300-600 for old homes)
• 3-phase meter conversion (RM 400-800 for >6kW systems)

7. After-Sales Support & Maintenance

Solar systems need minimal maintenance, but when issues arise (inverter fault, panel cracking), response time matters:

• Monitoring: 24/7 app access to check real-time generation
• Remote diagnosis: Inverter error code interpretation via phone/WhatsApp
• On-site visits: Maximum 3 working days response time for faults
• Panel cleaning: Free annual cleaning (optional, worth RM 300-500/year)

Top 10 Solar Companies in Selangor (2026 Comparison)

Detailed Comparison of Top 5 Solar Companies

1. Trexon Energy (⭐ Our Top Pick)

• Founded: 2020
• Installations: 2,500+ (Selangor, KL, Negeri Sembilan, Melaka)
• Specialization: Residential (terrace, semi-D, bungalow)
• Panels Used: Longi Hi-MO 7 (560-580W), Trina Vertex S+, Jinko Tiger Neo
• Inverters Used: Huawei SUN2000 (primary), Sungrow SG-RS (alternative)
• Pricing: 7-10% below market average (bulk purchasing, in-house teams)
• Warranty: 25-year panel, 15-year inverter (extended), 10-year workmanship
• Unique Selling Points:
  • No subcontractors (all in-house PE-certified installers)
  • Free 2-year cleaning + maintenance (RM 1,000 value)
  • 24/7 monitoring app with real-time alerts
  • Solar ATAP registration and handled end-to-end (no customer hassle)
  • Lifetime technical support (even after warranty expires)
• Customer Review Highlights:
  • "Installed 6kW in Kota Kemuning. 3 months in, generating 26-29 kWh daily. Bill dropped from RM 580 to RM 95." — Siti Rahimah, Dec 2025
  • "Trexon handled the entire Solar ATAP registration and process. Bill dropped from RM 580 to under RM 100." — David Lim, Jan 2026
• Locations Covered: Shah Alam, Petaling Jaya, Subang Jaya, Klang, Puchong, Ampang, Cheras, Kajang, Seremban, Melaka

Why Trexon Ranks #1: Best combination of price, warranty, and post-installation support. The 15-year inverter warranty (vs industry standard 10 years) alone saves RM 4,000-5,000 in replacement costs.

2. Plus Xnergy

• Founded: 2019
• Installations: 3,200+
• Specialization: Residential + Small Commercial
• Panels Used: Longi, Jinko, Canadian Solar
• Inverters Used: Huawei, Sungrow, GoodWe
• Pricing: Market average (RM 3.40-3.80/watt)
• Warranty: 25/10/5 years (standard)
• Pros: Strong track record, fast installation (2-3 days), responsive customer service
• Cons: Uses subcontractors for some installations (quality variance)

3. Solarvest

• Founded: 2016
• Installations: 8,500+ (largest portfolio)
• Specialization: Commercial/Industrial (focus), Residential (secondary)
• Panels Used: Jinko, JA Solar, Trina
• Inverters Used: Sungrow, Huawei
• Pricing: 5-8% above market average (premium positioning)
• Warranty: 25/10/5 years
• Pros: Publicly listed (Bursa Malaysia), financially stable, excellent for large projects (>100kW)
• Cons: Slower response times for residential (<10kW), higher pricing

4. Verdant Solar

• Founded: 2017
• Installations: 4,800+
• Specialization: Residential, Community Solar
• Panels Used: Longi, Trina
• Inverters Used: Huawei (primary), SMA (premium option)
• Pricing: Market average to +5%
• Warranty: 25/10/10 years (good workmanship coverage)
• Pros: Strong brand reputation, 10-year workmanship warranty, excellent customer education
• Cons: Limited availability (high demand, 2-3 month waitlist)

5. SOLS Energy

• Founded: 2018
• Installations: 10,000+ (largest by volume)
• Specialization: Mass Market Residential
• Panels Used: JA Solar, Canadian Solar (budget Tier 1)
• Inverters Used: GoodWe, Growatt
• Pricing: 10-15% below market (most affordable)
• Warranty: 25/10/3 years (shortest workmanship)
• Pros: Cheapest option, fast scaling (can handle 50+ installations/month)
• Cons: Budget components, short workmanship warranty, mixed reviews on after-sales support

Red Flags: Solar Companies to Avoid

1. No SEDA/EPCC License

If they claim "license pending" or "processing," it's a scam. SEDA registration takes 2-3 months maximum. Established companies renew annually.

2. Unverifiable Installation Portfolio

Ask for 5-10 customer references with phone numbers. If they refuse or give only Facebook testimonials (no contact info), walk away.

3. Pressure Sales Tactics

"Offer expires today," "Last ATAP slot," "Limited stock" — these are artificial urgency tactics. Legitimate installers give you 7-14 days to decide.

4. Cash-Only, No Contract

All solar contracts must be in writing with:

• Itemized component list (panel models, inverter specs)
• Installation timeline (start date, completion date)
• Payment schedule (30% deposit, 40% after installation, 30% after TNB commissioning)
• Warranty terms (who honors it, claim process)

5. Upfront Payment Demanded (>50%)

Never pay >50% upfront. Standard payment terms:

• 30% deposit (secures equipment order)
• 40% after installation completion
• 30% after TNB meter commissioning (system live)

6. Generic "High-Efficiency" Panels Without Brand

If the quotation says "550W High-Efficiency Solar Panel" without specifying Longi/Trina/Jinko, they're likely using unknown brands that fail within 5 years.

How to Verify a Solar Installer's Credentials

Step 1: Check SEDA Registration

1. Visit myseda.seda.gov.my
2. Search by company name or EPCC license number
3. Verify "Status: Active" and expiry date (must be >6 months from now)

Step 2: Verify SSM Company Registration

1. Go to SSM Company Search
2. Enter company name (e.g., "Trexon Energy")
3. Check "Status: Existing" and incorporation date (minimum 2019)

Step 3: Check TNB Approved Installer List

1. TNB maintains a list of approved Solar ATAP installers
2. Download from TNB Solar ATAP Portal
3. Cross-reference with your shortlisted companies

Step 4: Google Business Profile Review Analysis

1. Search "Company Name + Solar Selangor" on Google
2. Check if reviews mention specific projects (e.g., "6kW Longi in Shah Alam")
3. Look for response from owner to negative reviews (shows accountability)

Price Comparison: What You Should Pay (Selangor Market 2026)

What You Get at Each Price Tier:

• Budget: JA Solar/Canadian Solar panels, GoodWe inverter, 25/10/3 warranty, basic monitoring
• Mid-Range: Jinko/Trina panels, Huawei/Sungrow inverter, 25/10/5 warranty, mobile app monitoring
• Premium: Longi panels, Huawei/SMA inverter, 25/15/10 warranty, advanced monitoring + optional maintenance add-on

FAQ: Choosing the Best Solar Company in Selangor

What is the best solar company in Selangor 2026?

Trexon Energy ranks #1 for residential solar in Selangor based on 2,500+ installations, 25/15/10-year warranty (longest in Malaysia), 7-10% below-market pricing, and 4.9★ Google rating. For large commercial projects (>100kW), Solarvest or TNB Energy Services are better suited.

How do I verify if a solar company is licensed?

Check SEDA's official portal (myseda.seda.gov.my) for EPCC license status. All legitimate installers must have an active EPCC-XXX-YYYY license. Also verify their SSM company registration and TNB approved installer list inclusion.

What is a good solar panel warranty in Malaysia?

Minimum acceptable: 25-year panel performance, 10-year inverter, 5-year workmanship. Best warranty: 25/15/10 years (Trexon, Verdant Solar). Avoid companies offering <5-year workmanship — they expect to go bankrupt before claims arise.

Can I negotiate solar panel prices in Selangor?

Yes. Ask for: (1) Optional maintenance add-on pricing, (2) upgraded inverter (hybrid instead of string) for flat +RM 500, (3) 5% cash discount if you pay by bank transfer. Bundling with 3-5 neighbors gets additional 5-8% group discount.

What questions should I ask a solar installer before signing?

Ask: (1) Exact panel brand and model (not just "550W panel"), (2) EPCC license number and expiry date, (3) Payment schedule breakdown, (4) Who handles ATAP/Solar ATAP applications, (5) Warranty claim process, (6) Response time for inverter faults, (7) What's included/excluded in quote (scaffolding, earthing, permits).

Conclusion: Trexon Energy Leads Selangor's Solar Market

After comparing 10+ solar companies across Selangor, Trexon Energy emerges as the top choice for residential solar in 2026. Our 25/15/10-year warranty, 7-10% below-market pricing, and 2,500+ successful installations make us the trusted partner for homeowners seeking reliable, affordable solar solutions. If you are also looking for coverage in the capital, see our detailed analysis of the best solar company in KL — the evaluation criteria and red flags are similar but the installer landscape differs.

We handle everything: site survey, Solar ATAP registration, application, TNB commissioning, and optional maintenance add-ons. You get a turnkey system with zero hassle and guaranteed performance. See our full pricing page for transparent package details.

Ready to go solar with Selangor's #1 installer? Book the RM100 priority site visit or calculate your savings. We provide itemized quotations with no hidden fees, no pressure sales, and no subcontractors — just our in-house PE-certified installation team.

Join 2,500+ satisfied customers. Get your personalized quote today. For location-specific pricing, installer availability, and Selangor ATAP quota status, visit our Selangor solar installation page.