Named Engineer
Every report is signed by a named structural engineer with 20+ years of commercial solar experience: not a parametric calculator or automated output.
£5M PI Insurance
Every instruction carries £5M structural Professional Indemnity and £25M drone liability. Produced in the exact format accepted by institutional lenders and DNOs.
48-Hour Benchmark
The 48-hour delivery benchmark holds regardless of batch size. Programme summaries and escalation schedules delivered on completion of every batch without exception.
First-Submission Standard
Reports are produced to the standard required by lenders, DNOs, MCS auditors and planning authorities. The aim is first-submission acceptance: revision requests are the exception, not the norm.
MOST POPULAR
Choose the Package
That Fits Your Programme.
From £130 per report (residential / new build). From £150 per report (commercial). Volume pricing from 10 sites.
- Remote structural assessment
- No site visit required
- Full structural calculations included (Eurocode-verified)
- Wind, snow and dead-load assessment to BS EN 1991-1-4 + UK NA
- Pass / Conditional / Fail determination
- Engineering narrative included
- Building Regulations compliant; for sub-50kWp also MIS 3002 V6.0 aligned
- 48-hour delivery benchmark
- Batch programme support
From £600 per building (on-site structural survey). From £750 per building (drone roof condition survey). Combined survey + drone instructions on the same site visit are typically the most efficient package, sharing mobilisation. Price varies by roof count, location and access. Portfolio pricing from 10 sites.
- Qualified structural engineer on-site
- Priority engineer deployment
- Combined drone roof condition assessment
- Full structural load calculations
- Pass / Conditional / Fail determination
- Building Regulations compliant; for sub-50kWp also MIS 3002 V6.0 aligned
- Defect schedule & photographic evidence
- Engineer-signed report: 48h benchmark
Combined commission. Pricing builds from the on-site survey rate (from £600) plus design, G99 and planning scope. Quoted on application based on programme requirements.
- Structural survey & drone condition
- CAD roof layout drawing
- System specification & shading analysis
- G99 / G98 application & management
- Planning viability review included
- Installer-ready handover package
- Single point of contact throughout
From-prices shown. Final quotation reflects site location, access requirements and programme scope. Volume discounts from 10+ sites. Combined instructions share mobilisation overhead.
Client identities and project specifics are withheld under NDA. Testimonials and case references are presented in anonymous-authoritative format.
"We instructed three firms on a 45-site assessment programme. Solar Surveys were the only team that hit our delivery window on every batch and their reports were accepted by our lender technical advisors without any revision requests. The per-site cost is marginal compared to the programme time you save: we've used them exclusively ever since."
WHY IT MATTERS
Engineering Specialist.
Not a General Practice with a Solar Checklist.
FULL SERVICE LIST
Individual Service Pricing.
All services can be commissioned individually or as part of a combined package. Contact us to discuss your specific requirements and receive a programme quote.
| Service | What's Included | Delivery | Pricing |
|---|---|---|---|
| Desktop Structural Roof Loading Report | Remote structural assessment, full Eurocode-verified load calculations, engineering narrative, pass / conditional / fail. Suitable for solar PV, BESS and ground-mount. | 48 hours | From £130 . residential From £150 . commercial |
| On-Site Structural Survey | Full structural inspection, on-site load calculations, defect schedule, engineer-signed report. Roof-mount solar PV, BESS containers and ground-mount frames. | Priority deploy, 48h report | From £600 per building |
| Drone Roof Condition Assessment | Full aerial survey, condition classification per zone, defect identification, photographic report. Pre-PV due diligence on commercial roofs. | 48 hours from survey | From £750 per building |
| Combined Survey + Drone | Structural survey and drone roof condition assessment as one instruction, single combined report. Shared mobilisation reduces overall cost. | 48 hours from survey | From £600 per building |
| Solar Design Package | Full PVsol 3D design + simulation, mounting design with BOM, BESS sizing, ground-mount frame layout where required, CAD package for installer. | 3-5 working days | Quoted on application |
| G99 / G98 / G100 Application | DNO application preparation, full document compilation, submission and management through to connection agreement. Covers PV, BESS and combined export schemes. | Submission within 5 days | Quoted on application |
| Electrical Survey | MPAN analysis, incomer capacity, inverter location, switchgear condition report, SLD updates. Foundation for G99 / G100 application. | 48 hours from survey | Quoted on application |
| Planning PD Assessment | Permitted Development eligibility assessment under GPDO Schedule 2 Part 14 Class A, written confirmation or planning route advice. Roof-mount, BESS and ground-mount. | 48 hours | Quoted on application |
| Full Planning Application | CAD drawings, planning statement, supporting documentation pack, application submission and LPA liaison to decision. For sites outside PD or for ground-mount solar. | By LPA timeline | Quoted on application |
| Full Pre-Construction Package | Combined commission: structural survey, drone condition, full PVsol 3D design with BESS / ground-mount where applicable, G99 application, planning. Single point of contact. | Combined programme | Builds from £600 quoted on application |
| MCS Compliance Package (sub-50kWp DC) | MIS 3002 V6.0 Section 5.9 structural sign-off, engineer declaration, MCS audit-ready documentation. Mandatory from 18 June 2026 for in-scope installations. | 24-48 hours | Quoted on application |
VOLUME & PROGRAMME PRICING
Running a Multi-Site Programme.
Volume Pricing Applies.
Programme pricing is available for batch instructions of 10 or more sites. The more sites in your programme, the greater the per-site saving. Annual retainer agreements available for PPA providers and asset managers with ongoing pre-construction requirements.
PRICING FAQ
Common Pricing Questions.
How much does a structural survey for solar PV cost in the UK?
UK on-site structural surveys for commercial solar PV start from £600 per building. Final pricing varies by roof count, location and access complexity. For combined survey + drone roof condition assessment instructions, the per-building rate also starts from £600 because mobilisation overhead is shared. Portfolio programmes from 10 sites attract structured discounts.
How much does a drone roof survey cost in the UK?
UK drone roof condition surveys (also called drone roof inspections) start from £750 per building. The deliverable is an engineer-reviewed photographic condition report with defect identification per roof zone. Combined drone + structural survey instructions on the same site visit start from £600 per building because the mobilisation overhead is shared.
How much does a Desktop Structural Roof Loading Report cost?
Desktop Structural Roof Loading Reports start from £130 per report for residential and new-build properties, and from £150 per report for commercial properties. The report is produced remotely without a site visit, includes Eurocode-verified load calculations to BS EN 1991-1-4 (wind) and BS EN 1991-1-3 (snow), and ships within the 48-hour delivery benchmark. Volume pricing applies from 10 sites upward.
How much does a roof inspection cost in the UK for solar PV pre-installation?
UK commercial roof inspections for solar PV pre-installation start from £750 per building when delivered as a drone roof condition assessment. Combined with the on-site structural survey, the per-building rate starts from £600. The deliverable suite covers visible condition, defect schedule, photographic evidence and a written engineering opinion on remaining service life.
Do you offer pricing for BESS and ground-mount solar projects?
Yes. The same Desktop Structural Roof Loading Report, on-site structural survey and design packages cover battery energy storage systems (BESS) and ground-mount solar projects, in addition to roof-mounted PV. Ground-mount frame design and foundation assessment are quoted on application because frame type, ground conditions and array layout vary site-by-site. BESS structural assessment is included in the standard on-site survey rate from £600 per building.
What does the Survey + Design + G99 full package include?
The full pre-construction package combines: (1) on-site structural survey from £600 per building; (2) drone roof condition assessment; (3) full PVsol 3D design with year-long energy simulation, BESS sizing where applicable, and ground-mount frame layout where applicable; (4) mounting design with BOM; (5) electrical survey; (6) G99 / G98 / G100 DNO application preparation, submission and management; (7) Permitted Development planning assessment or full planning application as required. Single point of contact throughout. Pricing builds from £600 per building, quoted on application based on programme scope.
Are there volume discounts for multi-site solar PV survey programmes?
Yes. Volume pricing applies from 10 sites upward for Desktop Structural Roof Loading Report programmes, and from 5 sites for on-site survey programmes. The per-site rate reduces as programme volume increases. Contact us with your site list and we'll provide a programme quote with the applicable volume rate. Annual retainer agreements offer the lowest per-site rate alongside priority scheduling.
Do you offer retainer agreements for ongoing solar pre-construction programmes?
Yes. Annual retainer agreements are available for asset managers, PPA providers and EPC contractors with ongoing solar pre-construction programmes. Retainer pricing provides an agreed per-site rate, priority engineer scheduling, a dedicated account manager and capacity reservation for batch instructions. Contact us to discuss retainer terms aligned to your programme volume.
Ready for a Quote?
We Respond Promptly.
Send us your site list or programme brief. We'll issue an accurate, programme-specific quote on receipt of your enquiry.