Full Expensing · 25% Corp Tax Relief

Your commercial roof is a stranded asset. Let's fix that.

Sun's free. In 60 seconds, we'll show what a solar PV system on your warehouse, factory or office could save over the next 10 years - with the numbers your CFO needs.

Value My Roof
"We saved a well known manufacturing business in Crawley £900,000 over a ten year period. Find out what your roof could be worth."
Sun's Free client · Crawley, West Sussex
Trusted by UK operators - SMEs to industrial estates
UK warehouse with rooftop solar array at golden hour
Typical 10-yr net savings
£1.24M
150kW system · medium warehouse
How it works

Three steps. Zero pressure.

01

Tell us about the site

Site address, monthly electricity spend, roof orientation and obstructions. Under a minute.

02

See the numbers

Indicative system size, capex, tax relief, SEG income and 10-year net savings.

03

Book a site survey

Choose a slot. A commercial specialist confirms the figures and next steps.

UK incentives

HMRC pays a quarter of the capex.

Solar PV qualifies for Full Expensing - companies can deduct 100% of qualifying plant against corporation tax in year one. That's roughly 25% off your gross install cost, on top of the electricity you no longer buy.

  • Full Expensing - 100% first-year allowance for limited companies
  • SEG export tariff income for surplus generation
  • Hedge against volatile wholesale electricity prices
  • Scope 2 emissions cut - supports CSRD / SECR reporting
Sample site
£3,250/mo bill · south-facing · clear roof
System size
148 kW
Gross capex
£133,200
Full Expensing
-£33,300
Net savings 10y
£390,000
Payback came in at 4.2 years on our Midlands DC. The estimator lined up almost exactly with the survey.
Ops Director · 3PL, West Midlands
Straightforward, no hard sell. Board signed off after one site visit. Panels commissioned in twelve weeks.
FD · Food manufacturer, Yorkshire
Questions

The obvious stuff, answered.

Is the estimate really free?+

Yes. Sun's free - and so is the estimate. We only ask for your details when you're ready to see the figures.

How accurate are the numbers?+

The model uses your actual monthly spend, roof orientation and obstruction level with UK-specific yield (≈950 kWh/kWp/yr) and commercial install rates. A survey confirms the final figures.

Do we need to own the freehold?+

No. Leased premises can still install with landlord consent. On the consult we cover ownership options, PPAs and lease structures.

How does Full Expensing work for solar?+

Rooftop solar PV qualifies as plant & machinery. Limited companies subject to corporation tax can deduct 100% of qualifying spend in year one - worth 25% of gross capex at the main rate.

Will you spam our inbox?+

No. One confirmation email, then you deal directly with your specialist. That's it.

Find out what your roof is worth.

Sixty seconds. No hard sell. Numbers your finance team can defend.

Start my estimate