What we do
We design, install, commission, and maintain solar PV systems for UK commercial office buildings. Our project portfolio spans:
- Corporate headquarters (City of London, Manchester Spinningfields, Birmingham Colmore, Edinburgh)
- Multi-let office buildings — landlord-led with service-charge cost recovery
- Serviced and managed offices — operator-funded with inclusive rent uplift
- Government and public-sector estate — Salix PSDS-funded installs
- NHS Trust administrative buildings
- Listed and conservation-area office buildings — heritage planning route
- Business parks and office campuses — portfolio-wide procurement
Our average install is 280 kWp; our largest delivered is 1.1 MWp (Reading Thames Valley business park). The deliberate office-buildings focus means we know the specific compliance overhead — MEES 2030, RICS Service Charges Code 2018, Class A Part 14 Permitted Development thresholds, listed-building consent process, multi-tenant service-charge structuring — that generalists routinely under-cost and over-promise on.
Why office buildings specifically
Office buildings are a distinct commercial PV sub-market with its own technical and commercial drivers. The Monday-to-Friday 8am-6pm occupancy pattern produces some of the highest self-consumption ratios in commercial solar (70-85% without battery). High HVAC load in summer aligns precisely with peak generation. Multi-tenant lease structures bring specific service-charge recovery considerations not present in single-occupier industrial sites.
MEES 2030 brings the strongest single driver in office solar: approximately 21% of the UK's office stock currently sits below EPC B and will be unlettable by April 2030 without improvement. Solar PV is the most cost-effective single measure for most flat-roof commercial offices to clear the threshold. We position to win in this niche over the next 4 years.
Our team and accreditations
Our delivery team holds eight relevant trade accreditations covering installer competence, electrical safety, consumer protection, and management-system quality. The full register is on our accreditations page with verification links to every issuing body:
- MCS Commercial — installer certification (mandatory for SEG eligibility)
- NICEIC Approved Contractor — electrical installation certification
- RECC — Renewable Energy Consumer Code member
- TrustMark — government-endorsed quality scheme licensee
- IWA-backed 10-year warranty via QANW (A-rated insurer)
- ISO 9001:2015 — Quality Management System (UKAS-accredited)
- ISO 14001:2015 — Environmental Management System (UKAS-accredited)
- ISO 45001:2018 — Occupational Health and Safety (UKAS-accredited)
Plus OZEV-approved installer status for Workplace Charging Scheme grant work, and CDM 2015 Principal Designer / Principal Contractor capability for major commercial installations.
How we work
Every project follows the same six-step process — published openly at our process page — to keep delivery predictable and accountable:
- Free desk feasibility (7 working days) — half-hourly meter data + PVSyst yield modelling + three sizing scenarios
- On-site survey (week 2-4) — structural + electrical assessment
- Permits + DNO (month 2-6) — planning route + G99 grid connection
- Install + commissioning (month 6-9) — MCS-certified install team
- Documentation + ESG handover (month 9) — warranty pack + Scope 2 Disclosure Pack
- Ongoing O&M (years 1-25) — quarterly inspection + monitoring
Our commercial structure
We are operated by SEO Dons Ltd, a UK private limited company registered in England (Companies House number 16766013). Registered office: 71-75 Shelton Street, Covent Garden, London WC2H 9JQ. Director: Donovan Fawcett.
SEO Dons Ltd operates this site as part of a portfolio of specialist commercial solar properties. Sister properties include commercial solar installation hub, SMEs and businesses, warehouses, factories, and hotels, among others.
This portfolio structure means every UK commercial sector has a specialist site speaking directly to its buyer profile, while we maintain a single delivery team and operations capability across the network.
What you can expect
Our standard commercial commitments:
- Fixed-price proposal within 7 working days of receiving your half-hourly meter data + roof plan
- All four finance routes modelled in every proposal (cash, asset finance, operating lease, PPA)
- Planning route assessment with each proposal — Permitted Development, Prior Approval, or full planning
- Grant mapping across every applicable UK scheme (AIA, FE, PSDS, WCS, SEG, IETF, UKIB, RLS)
- 10-year workmanship warranty + IWA insurance backing via QANW (A-rated)
- 25-year panel performance warranty + 10-year inverter warranty (extendable to 20-25)
- Scope 2 Disclosure Pack on commissioning — SECR-ready text, CDP response template, TCFD mapping
- 5-year inclusive O&M built into capex (quarterly inspection, annual cleaning where needed, reactive fault response within 5 working days)
Speak to us
The fastest way to engage is via the quote form — send us half-hourly meter data and a roof plan; we'll model your specific building and return a fixed-price proposal within 7 working days. No charge, no obligation.