Hidden Costs of Solar Panels: What Companies Don't Tell You
Discover the potential hidden costs of solar panel installation and how to avoid unexpected charges.
Hidden Costs of Solar Panels: What to Watch Out For
Costs That Should Be Included
A reputable installer will include:
- Site survey and system design
- All equipment (panels, inverter, mounting)
- Scaffolding (if needed)
- DNO notification and approval
- MCS certification
- 10-year workmanship warranty
- System commissioning and handover
Potential Hidden Costs
1. Roof Repairs (£200-£2,000)
Some installers refuse to work on damaged roofs. Get a roof survey first if your roof is old.
2. Consumer Unit Upgrade (£300-£800)
Older properties may need a new consumer unit to comply with regulations.
3. G99 Application Fee (£0-£500)
Systems over 3.68kW may require a G99 application. Most installers include this, but check.
4. Scaffolding Surcharge (£500-£1,500)
Complex roofs or difficult access may incur additional scaffolding costs.
5. Meter Change (£0-£150)
Smart meters are usually free, but some suppliers charge for meter changes.
6. Planning Permission (£206+)
Conservation areas or listed buildings require planning applications.
7. EMS Consent - WGC Only (£0-£200)
Welwyn Garden City requires Estate Management Scheme consent.
How to Avoid Hidden Costs
1. Get fixed-price quotes - reputable companies don't add extras
2. Ask specifically about scaffolding, DNO, and electrical work
3. Check the contract - read what's included and excluded
4. Get a roof survey if your roof is 20+ years old
5. Compare like-for-like - ensure quotes cover the same scope
Red Flags to Watch For
- Quotes that seem too good to be true
- Pressure to sign immediately
- Vague pricing or "subject to survey" quotes
- Requests for large deposits (over 25%)
- No MCS certification number provided
