Apex Doma has achieved two new manufacturer certifications this year: Tesla Premium Certified Installer status, and SigEnergy Silver Certified Installer status. Both recognise the standard of our installation work directly with the manufacturers whose equipment we fit, rather than through a third-party scheme.
Tesla Premium Certified Installer
Being a Tesla Premium Certified Installer means we’ve met Tesla’s highest standards for training, technical competency, and customer experience on Powerwall installations. Our engineers complete Tesla’s certification programme directly, covering system design, installation quality, and safety to the exact standard Tesla requires of its top-tier partners.
This status also recognises our track record: Apex Doma won Tesla Energy’s Installation Excellence Award, covered at the time by Wilmslow.co.uk and Alderley Edge’s local paper.
SigEnergy Silver Certified Installer
SigEnergy Silver Certified status is awarded to the top 5-10% of UK installers by installation volume, based on Sigenergy’s own installer rankings. Reaching Silver reflects the quality, expertise, and consistency we bring to every SigenStor and Sigenergy inverter installation, and it’s reviewed twice a year to make sure that standard holds.
As a Silver partner, we also have priority placement on Sigenergy’s official Installer Map, giving customers an extra way to verify our status directly with the manufacturer.
What This Means For You
Choosing an installer with direct manufacturer certification means working with a team that Tesla and Sigenergy have each independently recognised as being among the most experienced in the country – not just a business that resells their equipment. Both certifications sit alongside our existing accreditations (NICEIC, MCS, RECC, and Which? Trusted Trader), which you can see in full on our Accreditations page.
If you’re comparing installers for a solar, battery or EV charging project, our Solar Installer Checklist covers the questions worth asking – including manufacturer certification status – before you commit.
