Ignore "Best Solar Company" Claims. Verify Instead.
Every installer says they're trusted. No register ranks solar companies, so "best" is always marketing, including when we say it, which is why we don't. What actually protects you is verifiable: certifications, insurance, written guarantees and measured output. Here are the seven checks that separate a solid solar installer from a slick brochure, with our own numbers on every register so you can run the checks on us right now.
The Seven Checks Before You Sign Anything
Run these on any installer quoting for your roof, us included. Tick each one off as you verify it; every "Check us" line links to the public register, not to our own website.
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Answer all seven to get their score.
MCS certification (non-negotiable)
Which? Trusted Trader status
RECC or HIES membership
TrustMark registration
Insurance that is actually big enough
Viking: ask us for the certificates.
Guarantees in writing, backed by insurance
Viking: see the Valhalla Guarantee below.
Real measured output, not brochure numbers
Once you've run the checks, worth reading: what actually happens on install day, solar on a Scottish tenement, and do you need planning permission.
What about reviews?
Reviews matter, but read them properly: look at the negative ones and how the company responded, not just the star count. We currently hold 4.9 from 107 reviews across Trustpilot and Google.
The Valhalla Guarantee
Our Word, In Writing
No asterisks the size of icebergs. Three promises, plain English.
Your deposit is protected
Independent insurance covers it from the moment you pay it. Your deposit is never at risk. Pay your deposit by credit card if you like, so Section 75 protection applies. The final payment is only due once your system is installed and working.
Our workmanship is guaranteed for ten years
A decade of cover on the work itself, backed by insurance rather than a handshake. If anything needs putting right, we put it right.
Your first year's output is guaranteed
If your system generates less than its official MCS production estimate, you're covered in full, on the rare chance it's ever needed.
Small print: Your deposit and our 10-year workmanship guarantee are insured through the IWA. Manufacturer faults, your bill savings, and an obvious mistake in the written estimate itself are not covered. Full terms in your contract.
Don't Take Our Word for It
Google 5.0“We are absolutely delighted with the advice and installation of our PV system. Having access to the app to see the power we are generating and returning to the grid is addictive! We highly recommend this team.”
“Very impressed with the installation. All done very efficiently and left tidy. Very pleasant workmen. App set up and explained.”
“Very happy with my new solar panels & battery. Great service, any issues dealt with quickly and effectively. Would highly recommend the team.”
“Excellent service from start to finish. Initial consultation was very knowledgeable. Installation was a breeze. Final support in setting up my SEG tariff was also flawless. Highly recommend this company. No pushy sales.”
“There were no pressure selling tactics that I experienced from other companies… the installation was carried out in one day in a very professional way, with everything left very tidy.”
Choosing an Installer: Your Questions
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Run the Checks on Us
Get a free, no-pressure quote and hold it to the standard on this page. Already have a quote from someone else? We'll sanity-check it for free and tell you if it's good.