Can you get a grant to replace a conservatory roof?

There is no government grant for replacing a conservatory roof. As of September 2026, none of the government energy schemes we checked lists a conservatory roof as an eligible measure, the Great British Insulation Scheme has closed, and we found no national “conservatory roof initiative” despite the number of people searching for one. The only tax break that touches conservatory roofs, the VAT zero rate on insulation, probably does not apply to a complete new roof either.

That matters because “grant” and “subsidy” are words used in doorstep and phone sales. This guide explains what does and does not exist, why conservatory roofs fall outside energy schemes, and how to check an offer.

Is there a government grant for a conservatory roof?

No. As of September 2026, none of the government energy schemes we checked (ECO4, the Warm Homes: Local Grant, the Boiler Upgrade Scheme and the Great British Insulation Scheme) lists conservatory roofs, and we found no national conservatory roof scheme. The Great British Insulation Scheme ended on 31 March 2026, its deadline for installations.

When a MoneySavingExpert forum user asked about a firm’s offer of a “substantial subsidy” for a new conservatory roof, other posters said they knew of no such government scheme. Separately, forum users questioned a subsidy claimed during a sales visit by an insulated roof panel company. Neither proves anyone was misled, but both show the claim is made and should be checked.

What the main energy schemes actually cover

These are the schemes people most often mean when they ask about a grant, and what GOV.UK says each one pays for.

Scheme	What it pays for	Who it is for	Conservatory roofs?
Energy Company Obligation (ECO4)	Insulation such as loft or cavity walls, and boiler or heating upgrades	Households on certain benefits; owners need an EPC rating of D to G, private tenants E to G	Not mentioned
Warm Homes: Local Grant (England only)	Wall, loft and underfloor insulation, air source heat pumps, smart controls and solar panels, arranged by councils	Privately owned homes rated D to G, household income usually £36,000 or less, or eligible postcodes or benefits	Not listed
Boiler Upgrade Scheme	Replacing fossil fuel heating with a heat pump or biomass boiler	Homes switching heating	No
Great British Insulation Scheme	Insulation	Closed: installations had to be complete by 31 March 2026	Not mentioned

One price guide, ExpertSure, suggests ECO or Warm Homes funding might possibly apply where the work improves a home’s energy rating. We could not confirm a single case of either paying for a conservatory roof, and the way energy ratings treat conservatories makes it unlikely, as the next section explains. The Home Upgrade Grant was not checked separately.

The same goes for “conservatory roof insulation grants”. The insulation these schemes fund is in the heated part of the home, and a conservatory that keeps its building regulations exemption is, by definition, separated from it.

Why a conservatory roof rarely counts as an energy improvement

The rating on an Energy Performance Certificate (EPC) comes from the government’s Standard Assessment Procedure (SAP) and, for existing homes, its reduced version, RdSAP. Both treat conservatories in a particular way:

• A conservatory that is thermally separated from the house, usually by an external-quality door, is disregarded, with or without heaters. The rating is worked out as if it were not there.
• A conservatory that is open to the house is counted as part of it, with its walls and roof taken as fully glazed and given default heat loss values.
• Since 6 August 2026, a conservatory whose roof has been replaced with a solid one, or given a false ceiling, must be recorded as an extension. Its insulation is only recorded if there is visual or documentary evidence; without it, a pitched roof with no loft access is entered with insulation as “none”.

So a new roof on a separated conservatory starts from a position where the old one did not count, and the net effect of it then being recorded as an extension was not tested in our research. A scheme that pays according to an improvement in the rating would have little or nothing to pay against. If you do replace the roof, keep the building control completion certificate and the written specification of the insulation, so an assessor can record it.

Building regulations push the same way. In England a conservatory only keeps its exemption if the house’s heating system is not extended into it and it stays separated from the house, which is why many conservatories sit outside the home’s heated rooms.

Do you pay VAT on a new conservatory roof?

Usually yes, at 20%. HMRC zero-rates the installation of insulation until 31 March 2027, then 5%, but its guidance says insulation fitted as part of building an extension is one standard-rated supply. A solid roof with built-in insulation is most likely treated the same way, so ask the installer to confirm the VAT in writing.

Some details from HMRC’s VAT Notice 708/6:

• A contract that is genuinely only for insulating an existing structure could qualify for the zero rate. Some internal ceiling firms advertise their work as “VAT free” or zero-rated; whether a lining fitted under an existing polycarbonate roof counts as insulation rather than a roof system is not confirmed.
• Double glazing and low-emissivity glass are standard-rated, so a new glass roof is too.
• Materials bought without installation are always standard-rated, so DIY buyers pay 20%.
• HMRC has not published a ruling specific to conservatory roofs.

Separately, VAT Notice 708 allows 5% on renovating or altering residential premises that have been empty; the qualifying conditions are in the notice.

How to check a “grant” or “subsidy” offer

If a seller mentions a grant, subsidy, scheme or “government-backed” price, work through these steps before you sign:

1. Ask for the scheme’s name, who funds it and the eligibility rules, in writing. A real scheme has published rules.
2. Look it up yourself on GOV.UK rather than following a link from the seller.
3. Refuse same-day deadlines. Falsely saying an offer is only available for a limited time to rush a decision is banned outright under the Digital Markets, Competition and Consumers Act 2024. Citizens Advice also lists refusing to leave, scare tactics and fake “reduced” prices as aggressive or misleading practices.
4. Know your cancellation rights. A contract signed at home normally has a 14-day cancellation period, extended by up to 12 months if the seller did not give you the cancellation information.
5. Keep the deposit small and pay by card. Citizens Advice advises a deposit of no more than 25%, and Section 75 of the Consumer Credit Act covers credit card purchases over £100 and up to £30,000.
6. Report pressure selling to Trading Standards through the Citizens Advice consumer helpline on 0808 223 1133.

Grant claims are policed elsewhere too. Advertising claims such as “government grant” must be substantiated under the advertising codes. In November 2025 the Information Commissioner fined a lead generation company £30,000 for texting people who had used its “government-backed free boiler grant” eligibility checker without giving them a way to opt out. Our guide to red flags when buying a conservatory roof covers the other warning signs.

Cheaper ways to fix a cold, hot or leaking conservatory

If the reason you were looking for a grant is budget, the cheaper roof options are a better place to start than a scheme that does not exist. Typical fitted prices for a medium conservatory (about 4m x 3.5m) in the common shapes; installers usually quote including VAT, but check:

Option	Typical fitted price	What it fixes
Leak repair	Around £375 (MyJobQuote)	A local leak from seals or a cracked sheet
Solar control film on a glass roof	Around £1,000 (Which?)	Summer heat and glare; not a failing roof
Insulated roof panels or lining	£1,800 to £4,600	Cold, heat and noise, on a budget
New polycarbonate roof	£2,700 to £5,200	Leaks and discolouring; little comfort gain
New glass roof	£3,500 to £7,000	Light kept, glare cut
Lightweight tiled roof	£7,400 to £12,100	A room usable all year

Our conservatory roof insulation page covers the panel and lining option, and the cost guides break every price down by size and style.

Spreading the cost instead

With no grant available, most people who cannot pay upfront use savings, a loan or installer finance. Under section 66A of the Consumer Credit Act 1974 you can withdraw from a regulated credit agreement within 14 days without giving a reason. Our guide to paying for a conservatory roof covers deposits, stage payments and finance, and whether a new roof saves money shows why bill savings will not pay for it quickly.

When you get quotes, ask each installer to show the VAT as a separate line and to put any claimed grant, subsidy or discount in writing with the name of whoever is paying it.