If your roofer has just told you the tiles need replacing and you’ve got solar panels sitting on top, you’re facing a job that doesn’t fit neatly into either a “roofing quote” or a “solar quote.” It’s both — and getting the sequencing, the trade, and the paperwork wrong is the single most common way homeowners end up with a five-figure bill for what should have been an £800–£1,500 job.
This is a more common scenario than people expect. A lot of UK solar was installed 8–15 years ago under the old Feed-in Tariff, often onto roofs that were already partway through their life. Those roofs are now due for re-covering, and the panels have to come off, get stored safely, and go back up — ideally on the same mounting points, ideally without voiding any warranties, and ideally without anyone falling through a skylight in the process.
What “removal and reinstallation” actually covers
Solar panel removal and reinstallation (often shortened to “R&R” by installers) is a distinct job from a fresh installation. You’re not buying new panels or a new inverter — you’re paying a qualified team to:
- Isolate the system safely (DC and AC sides)
- Unclip and lift the panels off the existing mounting rails
- Remove the roof-mounted brackets and flashing so the roofer has clear access
- Store the panels (usually on-site, sometimes off-site for longer reroofs)
- Refit new flashing and brackets once the roof is done
- Re-rack and reconnect the panels, re-commission the inverter, and test the system
Done properly, that’s roughly a one-to-two day job for a typical 10–16 panel domestic array, and it’s why £800–£1,500 is the realistic range most homeowners should budget for on a straightforward pitched roof with a standard tile or slate re-cover. That figure assumes:
- The existing panels, rails and inverter are being reused (not upgraded)
- Access is normal (no scaffolding complications, no flat-roof crane work)
- The system is a typical domestic size (roughly 3–6 kWp)
- No damage is found to cables, MC4 connectors or the inverter during the process
Where costs move upward — sometimes to £2,000–£3,000+ — is when the array is larger (commercial-scale or a big residential system), when scaffolding needs to go up specifically for the solar work rather than being shared with the roofers, when in-roof (integrated) panels are involved rather than bolt-on rail systems, or when the removal reveals corroded cabling or a failing inverter that needs replacing while everything’s already off. It’s worth asking your installer to quote removal and refit as separate line items from any roofing work, so you can see exactly what you’re paying for.
Who should actually do this work
This is where most of the expensive mistakes happen. There are three trades that might touch your roof during a re-cover with solar on it, and only one combination gets the sign-off right:
The roofer handles the tiling, felt/membrane, battens and flashing. They are not qualified to disconnect or handle live DC solar wiring, and a competent roofer will refuse to touch the panels for exactly that reason.
The MCS-certified solar installer — ideally the original installer, or another MCS-certified firm — handles the electrical isolation, panel removal, and reinstallation. This matters for more than safety. If you want to keep your Smart Export Guarantee (SEG) payments, your system needs to remain MCS-compliant, and MCS explicitly requires that any panel removal and reinstallation is carried out — or at minimum signed off — by an MCS-certified installer, with the work logged. An uncertified “handyman” removal can technically break your MCS certification even if the panels go back up in the same place.
The scaffolder, usually organised by the roofer, needs to accommodate both trades’ access needs — which is a scheduling conversation worth having explicitly, because “the roofer’s scaffold” and “safe solar access” aren’t always the same thing.
The cleanest way to run the job is to get your roofer and a certified solar team — such as ALPS Electrical, Hazell Electrical in West Kent, or FLD Electrical covering Swansea and South Wales — coordinating directly on dates, rather than you acting as the go-between. A good solar installer will also check your existing rails, brackets and cabling while everything is exposed, since it’s the cheapest possible moment to replace a tired inverter or swap ageing cable runs before they fail.
Scam-avoidance: what to watch for
Roof-related cold calling has a long, ugly history in the UK — “we noticed a loose tile while working nearby” is one of the oldest doorstep scripts going — and solar-adjacent roof work has become a newer variant of the same playbook. A few red flags specific to R&R jobs:
- Anyone offering to remove your panels for free or “at a discount” in exchange for using your roof for advertising, referrals, or a “trial.” There is no legitimate business reason to remove and refit a working solar array for free.
- Pressure to sign same-day, especially combined with a cash-only payment or a request for a large upfront deposit before any written scope of work.
- No mention of MCS certification, or vague answers when you ask for their MCS installer number. You can verify any installer’s MCS status directly on the MCS installer database — this takes two minutes and is worth doing every time, even with a firm that’s approached you rather than one you found.
- No isolation/safety documentation offered. A competent installer will isolate the system, follow safe isolation procedure, and should be willing to explain (in plain terms) how they’re protecting you from DC arc risk during the work.
- Refusal to put the reinstallation warranty in writing. Ask specifically what happens if a panel is damaged during removal, and what warranty applies to the reinstalled system versus the original installation warranty.
If in doubt, get a second quote. R&R is a well-defined, bounded job — a legitimate quote should be itemised, time-bound, and come from a company you can find MCS records and Companies House filings for, not just a WhatsApp number.
The insurance angle
This is the part homeowners most often get wrong, and it cuts both ways.
Before the work starts: call your buildings insurer and tell them a roofer and solar installer are going to be working on the roof, with panels temporarily removed. Most policies are fine with this as routine maintenance, but some have specific clauses about unoccupied scaffolding, stored equipment, or work being carried out by contractors — and you want to know you’re covered if anything goes wrong mid-job (a storm hitting an open roof, panels damaged in transit or storage) rather than finding out after the fact.
During storage: if panels are being kept on-site between removal and refit — which is common on multi-day reroofs — ask explicitly whether they’re covered under your home contents/buildings policy while off the roof, or whether the installer’s own liability/goods-in-transit insurance covers them. Don’t assume either party has it covered; get it confirmed in writing.
After the work: your solar installer should provide new or updated commissioning paperwork once the system is reconnected. Keep this with your insurance documents — some insurers ask for evidence that an MCS-certified installer reconnected the system, particularly if you claim on the SEG or if you later sell the house and a buyer’s solicitor asks for proof of compliant installation. This is also a sensible moment to double-check your buildings sum-insured reflects the value of having solar installed at all, since older policies sometimes predate the array and haven’t been updated.
Reroofing with solar: sequencing that saves money
If you know a reroof is coming and haven’t yet had panels removed, a few practical points can keep costs down:
- Get the roofing quote and the solar R&R quote at the same time, ideally with both trades looking at the job together, so scaffold hire is shared rather than duplicated — this alone can save several hundred pounds.
- Ask whether your roof covering choice affects re-mounting. Switching from concrete tile to slate, or to a lighter/heavier material, can change what brackets and flashing kit are needed, which affects the reinstallation cost.
- If the system is old enough that a re-string or inverter upgrade makes sense anyway, doing it during a forced removal is far cheaper than paying for access twice. For a broader read on what different battery and inverter refresh options cost alongside a reroof, The Cost of Solar’s guide to battery storage costs is a useful companion read, and our solar panel payback period guide is worth revisiting if the reroof timing has you wondering whether the system’s still worth its keep.
- Don’t assume 0% VAT applies automatically to R&R work. The 0% VAT relief on residential solar and battery installations (in place in Great Britain until 31 March 2027) is generally aimed at supply-and-install of new equipment; removal/refit-only labour on an existing system may be treated differently by different installers, so ask your quote to state the VAT treatment explicitly rather than assuming.
For homeowners further along in the process — sourcing quotes for the reroof-and-refit combination itself — regional installers who handle both electrical and renewables work under one roof (no pun intended) tend to manage this coordination better than a roofer and a separate solar firm working independently. Ecoaim in Central Scotland, Energy Concerns in Leicester, and Solent Solar in Hampshire are among the installers set up to handle removal-and-reinstallation as a standard part of their service, rather than treating it as an unusual one-off.
Commercial and larger arrays
Everything above scales up, sometimes considerably, for commercial roofs. A warehouse or industrial-unit array running into the hundreds of panels is a materially different logistics job — crane access, extended storage, and often a phased removal so the building stays weathertight throughout. If you’re weighing up a re-roofing programme against a commercial-scale array, Solar Panels for Warehouses and Solar Panels for Industrial Units both cover the commercial side of this in more depth, and Commercial Solar Panel Installation is a good starting point if you’re scoping the wider project rather than just the R&R element.
The bottom line
Budget £800–£1,500 for a standard domestic removal-and-reinstallation on a typical roof with a like-for-like refit, insist on an MCS-certified installer handling the electrical side (check the MCS database yourself, don’t take their word for it), get roofing and solar quotes coordinated rather than sequential, and confirm your insurance position in writing before anything comes off the roof. Treat any offer that skips certification checks or asks for cash upfront as a hard no. Done properly, R&R is routine maintenance that protects a system you’ve already paid for — it’s only expensive or risky when it’s rushed, uncertified, or bundled badly with the roofing job.