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Install solar tile roofs.
Tesla Solar Roof or Marley SolarTile — integrated PV that looks like normal roof. Costs more, looks better.
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Costs, timelines, pitfalls and the right questions to ask before any roofer starts on solar Tile Roofs (Integrated PV).
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Cost vs conventional panels
Solar tiles cost 2–3x conventional panels for same output. Choose only for aesthetic or planning reasons.
Inverter location
Inverters need accessible location — usually loft or garage. Plan during install.
Shading from chimney
Even partial shade reduces generation significantly. Plan tile layout to maximise sun exposure.
Repair complexity
Replacement of damaged solar tile more expensive and slower than panel — supply chain dependencies.
Costs & timeline
Know what it costs. Know when it ends.
Indicative UK ranges and a typical week-by-week schedule.
Cost range
By job type
Inc. VAT · 2026
Source: NMT quotes
Source: NMT quotes
Marley SolarTile per m²Integrated with Marley roof
£250–£500/m²
Tesla Solar Roof per m²Premium US brand, limited UK
£400–£800/m²
Generic solar tile per m²Various Chinese manufacturers
£180–£400/m²
4 kW solar tile systemTypical UK domestic
£18k–£30k
6 kW solar tile systemLarger house
£22k–£40k
Battery storage (5 kWh)Tesla Powerwall, GivEnergy
£3.5k–£6.5k
!
Quote spread is typically ± 18% — always get 3 quotes.
Timeline
Semi-detached full re-roof · week by week
Typical
4 phases · 3 wk
4 phases · 3 wk
W1
W2
W3
Scaffold erection
Strip + felt + battens
Tile + ridge + verge
Flashings + snags
!
Schedule slips on dependencies — pad each phase by 10–20% for real-world delays.
At a glance
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Roofer explained
Solar tiles integrate PV (photovoltaic) into the roof finish — look like normal tiles but generate electricity. Expect to pay £18,000–£35,000 for UK solar tile roof installation. Premium choice over conventional panels for design-led builds.
What Does the Work Involve?
Roof stripped and re-tiled with a mix of generating tiles (in best sun positions) and matching non-generating tiles elsewhere. Tiles wire to inverters and battery storage. Cabling runs through the roof to electrical consumer unit. MCS-certified installer for grant eligibility. Building Regs Part P certification for the electrical work.
Typical Costs
| Item | Low (£) | High (£) | Notes |
|---|---|---|---|
| Marley SolarTile per m² | 250 | 500 | Integrated with Marley roof |
| Tesla Solar Roof per m² | 400 | 800 | Premium US brand, limited UK |
| Generic solar tile per m² | 180 | 400 | Various Chinese manufacturers |
| 4 kW solar tile system | 18,000 | 30,000 | Typical UK domestic |
| 6 kW solar tile system | 22,000 | 40,000 | Larger house |
| Battery storage (5 kWh) | 3,500 | 6,500 | Tesla Powerwall, GivEnergy |
| Conventional solar panels (4 kW comparison) | 6,000 | 10,000 | Half the cost |
How Long Does It Take?
Standard re-roof with solar tiles: 10–14 days. Plus electrical commissioning: 1–2 days.
DIY or Professional?
Professional only. MCS-certified installer required for warranties and grants. Building Regs Part P certification.
Choosing the Right Tradesperson
MCS-certified solar installer with experience of integrated tile systems. Marley have an approved installer network. Get 25-year warranty on the tiles, 10-year on the inverter.
UK Regulations
MCS certification required for SEG (Smart Export Guarantee) and grants. Part P electrical certification. Building Regs roof notification.
Common Problems
- Cost vs conventional panels: Solar tiles cost 2–3x conventional panels for same output. Choose only for aesthetic or planning reasons.
- Inverter location: Inverters need accessible location — usually loft or garage. Plan during install.
- Shading from chimney: Even partial shade reduces generation significantly. Plan tile layout to maximise sun exposure.
- Repair complexity: Replacement of damaged solar tile more expensive and slower than panel — supply chain dependencies.
Frequently Asked Questions
Solar tiles vs solar panels?
Tiles: look better, blend with roof, more expensive. Panels: cheaper, easier to repair, more common. Choose tiles for aesthetic or where planning rejects panels (listed/conservation).
Best solar tile brand?
Marley SolarTile (UK manufacturer, fits Marley roof system, MCS certified). Tesla Solar Roof (premium US brand, limited UK installer network).
How long do solar tiles last?
25–30 years on the PV generation. 50+ years on the tile body. Output typically warranted at 80%+ after 25 years.
How much electricity will I generate?
4 kW system on south-facing roof in southern UK: ~3,500 kWh/year. Saves £700–£1,200/year on electricity (depending on tariff). Plus SEG export payments.
Will solar tiles work on a north-facing roof?
Yes but ~50% less output than south-facing. Worth doing only for grid-export at peak tariff or with battery storage.
Planning permission needed?
Most solar installations are permitted development. Listed buildings always need consent. Solar tiles often more acceptable in conservation areas than visible panels.
This guide was written with AI assistance and is intended for general information only. Prices are estimates based on UK averages and may vary by region. Always get at least three quotes and consult a qualified professional before starting any work.
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