06 — PPM Electrical

Solar Panel Cleaning, Testing & Insurance Checks

A solar installation is a significant investment — but without regular care, output quietly drops and small faults go unnoticed until they become expensive problems. From our base in Spalding, PPM Electrical provides solar panel cleaning, full electrical testing, and insurance-ready inspection reports for homeowners, farmers, and businesses across Lincolnshire. Whether your system is on a bungalow in Spalding, a grain store near Boston, or a commercial roof in Peterborough, we help you protect performance, safety, and peace of mind.

Serving Spalding, Boston, Peterborough, Stamford, Grantham, Sleaford, Holbeach, Bourne, and surrounding Lincolnshire towns.

Why solar maintenance matters in Lincolnshire

Lincolnshire properties face conditions that take a toll on solar panels. Agricultural dust, pollen, bird droppings, moss, and general grime build up faster on rural and commercial roofs than many owners realise. Even a thin layer of dirt can cut generation by 10–25%, which directly hits your savings and export income. Beyond soiling, connections loosen, inverters develop faults, and individual panels can underperform without any obvious sign from the ground. Regular cleaning and testing catches these issues early — before lost generation outweighs the cost of a service visit.

Solar panel cleaning

We clean panels using safe, professional methods designed to restore output without damaging the glass, frames, or seals. That means no abrasive scrubbing, no harsh chemicals, and no high-pressure washing that can force water into junction boxes or compromise warranties. For farm buildings, packhouses, and commercial units across the fens, we remove the dust and residue that accumulates through harvest seasons and daily operations. For residential systems, we clear the bird droppings, pollen, and moss that slowly choke output on otherwise well-installed arrays. The result is a measurable improvement in generation and a system that looks as well maintained as it performs.

Electrical testing & performance checks

Cleaning is only part of the picture. Our electrical testing covers the components that keep your system safe and efficient — inverters, DC isolators, AC connections, earthing, and string voltages. We check for signs of overheating, moisture ingress, cable damage, and underperforming strings that suggest a faulty panel or connection. Where possible, we compare live performance against expected output for the season and conditions. You receive a clear, written report on system health, anything we find that needs attention, and honest advice on whether remedial work is urgent or can wait.

Insurance & warranty inspections

Insurers, mortgage lenders, and warranty providers increasingly want proof that a solar system has been professionally maintained — not just installed and forgotten. We provide documented inspection reports covering visual panel condition, mounting integrity, electrical safety, inverter status, and overall system performance. This paperwork supports insurance renewals, warranty claims, property sales, and landlord compliance. If your system was installed by another company, that is not a problem — as MCS accredited specialists, we inspect third-party installations too.

What's included in a typical visit

Every property is different, but a standard solar maintenance visit typically includes a visual roof-level inspection, professional panel cleaning, electrical safety checks on the inverter and isolators, string voltage testing, and a performance assessment against expected output. We note any defects, photograph key findings where relevant, and provide a written report you can keep for your records. If we identify faults we can repair — loose connections, inverter errors, or monitoring issues — we will quote for remedial work separately so you can decide what to proceed with.

Who is this service for?

This service suits any solar owner who wants to protect their investment. Homeowners who notice bills creeping back up despite having panels. Farmers and agricultural businesses with arrays on barns, grain stores, and packhouses where dust and debris accumulate quickly. Commercial property owners who need documented maintenance for insurance or compliance. Landlords and property sellers who need a professional inspection report. And anyone whose original installer is no longer trading or who simply wants a local, MCS accredited company they can call year after year.

How often should you clean and test?

For most residential systems in Lincolnshire, an annual clean and inspection is a sensible baseline. Agricultural and commercial roofs often benefit from twice-yearly cleaning — particularly after harvest or periods of heavy dust. If you have noticed a drop in generation, error lights on your inverter, or visible soiling on the panels, do not wait for the annual visit. We cover Spalding, Boston, Holbeach, Stamford, Grantham, Sleaford, Bourne, Peterborough, and surrounding towns. One-off visits and scheduled maintenance plans are both available.

Other services

Solar PV

Design, installation, and maintenance of solar photovoltaic systems for homes and businesses — helping you generate clean energy and reduce bills.

Battery Storage

Home and commercial battery storage solutions to store surplus solar energy and keep your property powered when you need it most.

EV Chargers

Supply and installation of electric vehicle charging points for domestic driveways and commercial premises, fully compliant and future-ready.

Air Conditioning

Installation, servicing, and repair of air conditioning systems to keep your home or workplace comfortable year-round.

Cold-Store Service & Repair

Specialist service and repair of large cold-store facilities — keeping commercial refrigeration running reliably and efficiently.