Choosing an installer

How Switch Together's group-buying auction works, what it includes, and the questions worth asking before you sign with any installer.

6 min read
Rated 5.0on Google
Flexi-Orb certifiedHIES member
Free surveyno obligation
Price fixedin writing after survey
14 daysto change your mind

The short answer

Switch Together (the scheme most councils still call Solar Together) is a free, no-obligation group-buying auction that gets you one offer from one installer, decided by the auction rather than chosen by you. A local installer gives you a quote you can negotiate, compare and walk away from at any point. Neither is the wrong choice. What matters is knowing what each one actually promises before you register for either.

In this guide 9 sections

What Switch Together is, in plain terms

Switch Together is run by iChoosr Ltd, a company that organises group-buying auctions for councils across the country, under the trading name Switch Together (it operated for years as Solar Together, and some council pages still use that name). Dorset, Essex, Norwich and other authorities have run a round of it. If you're searching "solar together dorset," you're most likely looking for Solar Together Dorset, the council's own round with iChoosr: its page confirms personal recommendations were emailed from 1 October, with installations planned by the end of June 2026. You register for a round through switchtogether.co.uk.

Nothing about the scheme is dishonest or a trick. It's a genuine attempt by local authorities to get residents a vetted installer and a fair price without each household having to shop around alone. It isn't the only honest route, and it isn't automatically the cheapest one for your specific roof.

How the registration window and auction work

You register during an open window, which a council announces and which it sets the length of itself. Registration asks for basic details: your postcode, roof type, and rough energy use. It's free and commits you to nothing.

Once the window closes, participating installers submit competing bids in a reverse auction: they're bidding for the right to install systems across everyone who registered in that round, not for your job alone. The installer whose bid wins supplies every household in that round with a personalised offer, based on the roof details you gave and a follow-up survey.

You then get a set period, commonly around five weeks, to decide whether to accept. There's no penalty for declining, and you can register again in a future round if you change your mind.

What the offer includes

The winning installer designs a system for your roof after a proper survey, not just from your online form answers. The published scheme material describes installers as vetted for "experience, accreditations, customer service, safety standards, and financial stability," and the installation itself comes with warranties and aftercare from that installer, exactly as it would from any installer you found yourself.

Battery storage is usually offered alongside solar, and some rounds include heat pumps or an energy-switching tariff. What you don't get is a choice of installer: the auction's whole mechanism depends on one winner per round, so you can't pick a different firm and keep the group-buying price.

Is Switch Together worth it?

For a straightforward roof in a council area currently running a round, it can be a sensible way to get a vetted installer without doing the legwork of finding one yourself. The auction mechanism exists precisely so you benefit from installers competing for volume rather than for your individual job, and that's a real, structural reason the pricing can be competitive.

The trade-off is timing and flexibility. You're on the council's registration calendar, not your own, and your roof gets one offer rather than several to compare line by line. If your roof is unusual (a steep pitch, a listed building, limited south-facing space) a single standardised offer is less useful than a surveyor who's looked at it in person and can talk through the options with you.

Switch Together compared with going direct to a local installer

Switch Together A local installer
How many quotes you get One, from the round's winning installer As many as you ask for
Who sets the price Decided by the auction, before your roof is surveyed Negotiated on your specific job
Installer choice None, fixed by the auction's result You choose
Installer certification Vetted by the scheme for experience, accreditations, customer service, safety standards and financial stability Check the firm's own certification directly
Timing Tied to the council's open window Whenever you're ready
Who to contact afterwards The winning installer's own aftercare Whichever firm you installed with

Questions worth asking on either route

  • Is the price fixed in writing, or just an estimate that can move after survey?
  • What's physically included: panels, inverter, any battery, scaffolding, bird protection, the monitoring setup, and the paperwork for grid connection and export payments?
  • Has anyone actually been to the property, or is the offer based on photos and a form?
  • What's the realistic timescale from signing to switch-on?
  • What warranty covers the workmanship specifically, separate from the panel and inverter manufacturer warranties?
  • Who do you call if something needs attention two years after installation?

A written answer to every one of those, before you sign anything, matters more than which route you took to get the quote.

Where Pro-Fit fits into this

We want to be straightforward about this: Pro-Fit is not part of Switch Together. We're Flexi-Orb certified and an HIES member for solar and battery work, and every Pro-Fit solar install includes help registering for export payments, so you're not left to sort that out alone. If a particular certification matters to you, for example because a scheme asks for it by name, ask us for the certificate and check it on the scheme's own register before you choose. That goes for any installer.

What we offer instead is published guide pricing you can see on our pricing page before you even book a survey, a free survey on your actual roof, and a price fixed in writing afterwards rather than an estimate that can shift. Our how it works page sets out the same four stages as any proper installation: survey, written quote, installation, handover with the app and paperwork done. There's no auction and no registration window. You can ask for a quote whenever your roof needs one.

We're not going to tell you Switch Together is a bad idea, because for plenty of households it isn't. We'd just rather you knew exactly what each route gives you before you commit to either.

Frequently asked questions

Is Switch Together the same as Solar Together?

Yes. Solar Together rebranded to Switch Together; both names describe the same iChoosr-run group-buying scheme, and some council websites still use the older name.

Do I have to accept the offer once I've registered?

No. Registration is free and non-binding, and you can decline the offer with no penalty if it doesn't suit your roof or your budget.

Can I register with Switch Together and still get a quote from a local installer?

Yes, there's nothing stopping you doing both and comparing the two offers before you decide. Just be aware of the decision window on the Switch Together offer so it doesn't lapse while you're waiting on the other quote.

Why does it matter whether an installer is MCS certified?

MCS certification is one of the standard routes to Smart Export Guarantee payments for the electricity you export (mcscertified.com). Switch Together vets installers on experience, accreditations, customer service, safety standards and financial stability rather than naming MCS specifically, so check an installer's current certification directly rather than assuming it from their marketing.

Is Pro-Fit cheaper than Switch Together?

We can't say, because Switch Together's auction price depends on the round, your council and your roof. What we can tell you is our guide prices are published on our pricing page, and the figure you're quoted after survey is fixed in writing.

Does Pro-Fit do group-buying or council schemes?

No. We're not part of Switch Together or any similar scheme. Every quote we give is for your roof specifically, after our own surveyor has been to look at it.

Sources

  1. switchtogether.co.uk/solar-and-battery, read 7 October 2026
  2. switchtogether.co.uk, read 7 October 2026
  3. theecoexperts.co.uk/solar-panels/solar-together, read 7 October 2026
  4. mcscertified.com, read 7 October 2026
  5. dorsetcouncil.gov.uk/w/solar-together-dorset-2, read 7 October 2026

A guide price for your own roof.

Six questions about your property and how you use electricity, then a figure on screen. A free survey fixes it in writing, and you have 14 days to change your mind.

✓ Six questions, about a minute, no obligation.