Free Boiler Grants in Bristol (BS1–BS16)ECO4 Eligibility 2026

Yes. Bristol City Council operates ECO4 Flex under its standalone Statement of Intent v.3.1 (published 29 November 2023, signed by Arancha Craddock, BCC Energy Supply Senior Project Officer and Dedicated Responsible Person). The SoI uses Routes 1, 2 and 3 (Route 4 bespoke targeting is NOT used). Critically, Bristol nominates the Centre for Sustainable Energy (CSE) Home Energy Team as the council's named Proxy 5 scheme — households can be declared eligible after a CSE-administered income-and-vulnerability check, not just on the £31,000 income or two-proxy Route 2 tests. Resident-facing entry is CSE's freephone 0800 082 2234 (or cse.org.uk/my-home/how-we-help-you/). Council direct enquiries: Arancha Craddock, 0117 922 3532, arancha.craddock@bristol.gov.uk. The SoI is standalone — NOT joint with Bath & North East Somerset, South Gloucestershire or North Somerset, each of which maintains its own SoI.

Wales & West Utilities (WWU) is the GDN for Wales and the South-West, including all BS1-BS16 postcodes. ECO4 covers the new boiler, internal pipework, meter installation and removal of the old system at no cost. The connection from your meter to the WWU gas main is separate, but Bristol's dense Victorian street grid means almost every address is already on the gas main and there is nothing extra to pay. The rare off-main cases (typically newer infill plots on the BS9 / BS10 outer fringes) range from around £500 for a short distance up to £2,500+ for longer routes. WWU also funds CSE's WHAM (Warmer Homes, Advice & Money) programme across Bristol, B&NES and North Somerset — an unusually direct GDN-into-community partnership that complements the ECO4 Flex pathway.

Yes for the boiler itself — but the flue routing and any external work need listed-building consent because Clifton's Royal York Crescent, Cornwallis Crescent, Sion Hill and most of the BS8 squares are Grade I or II listed within the Clifton & Hotwells Conservation Area. The wall-mounted condensing combi is normally fine inside the property, but the new balanced flue cannot exit through the principal front elevation onto the Crescent. Most Clifton installs route the flue through a rear wall, an existing redundant chimney, or a partywall light-well. Your PAS 2035 retrofit assessor will flag the consent requirement before the install is approved. Bristol's conservation pattern is a weaker version of Edinburgh's New Town constraint but still real.

Yes — this is First-Time Central Heating (FTCH), one of the highest-scoring measures under ECO4 because moving from Economy 7 storage heaters to a gas combi typically jumps the EPC two bands in a single intervention. Most BS13 Hartcliffe / Withywood / Bishopsworth and BS14 Hengrove / Stockwood blocks are connected to the WWU gas main at the riser even where individual flats are not yet metered for gas. ECO4 covers the boiler, the full radiator set, the pipework and the removal of the existing electric heaters. Expect three to five days on site with temporary heating provided where needed. South Bristol is one of the highest-volume FTCH catchments in the South-West.

Only if it is non-condensing or broken. ECO4 is governed by Ofgem's SAP-modelled efficiency uplift rules — a working A-rated condensing boiler in a Bedminster or Easton terrace will not qualify because the SAP improvement would be too small to score. A 1970s-1990s non-condensing combi or a back boiler behind a tiled gas fire — both still common across BS3 Bedminster, BS5 Easton, BS2 St Werburgh's / St Pauls and BS6 Montpelier — is the typical qualifying case. The retrofit assessment (PAS 2035) confirms the band uplift before the install is approved.

From the initial CSE eligibility call to a commissioned new boiler, a typical Bristol job runs five to seven weeks. The eligibility pass takes 49 seconds through our wizard, or you can call CSE direct on 0800 082 2234. The PAS 2035 retrofit assessment is usually booked within ten working days, with surveyors operating across the central Victorian terraced belt (BS2/BS3/BS5/BS6), Clifton (BS8) for the conservation-consent flow, and out to South Bristol (BS13/BS14) for FTCH conversions. The install itself is two to three days for a standard combi swap, longer for first-time central heating on the Hartcliffe estates or back-boiler removal in a Bedminster terrace because the chimney has to be capped to building-control standards.

ECO4 closes 31 December 2026. After that, the £15 billion Warm Homes Plan takes over from April 2027 — funded by public investment rather than energy-bill levies, and delivered by the new Warm Homes Agency rather than Ofgem (gov.uk Warm Homes Plan, updated 18 March 2026). You may have seen the successor scheme called 'ECO5' online — that name is not used by government and no scheme by that title exists. For Bristol households, the practical effect is straightforward: if you apply under ECO4 before the 31 December 2026 close, the install is funded under ECO4 even if the engineer's visit happens in early 2027; if you start a fresh application after 1 January 2027, you'll be routed through the Warm Homes Local Grant (WHLG), the Warm Homes Social Housing Fund, or the £7,500 Boiler Upgrade Scheme depending on your tenure and property. Your local council's energy team continues to handle the referral throughout the transition.