By Peter Davies, ECO4 Analyst
Reviewed
Pillar guides: Free boiler upgrade Β· ECO4 eligibility Β· LA Flex grants
EH1βEH17
Postcode coverage
SGN
Gas Distribution Network
LA Flex active
City of Edinburgh Council
Β£0
Cost to qualifying households
There are two routes for Edinburgh households. Pick whichever applies β you don't need both.
Per gov.uk's Energy Company Obligation page, you qualify if you receive any of:
No qualifying benefit? City of Edinburgh Council runs its own referral route through the LA Flex Statement of Intent.
Bottom line: If your address is in EH1βEH17, you claim a qualifying benefit or fall under City of Edinburgh Council's LA Flex criteria, and your EPC is D-G, the eligibility check is a 49-second form.
Edinburgh's housing stock is unusually heterogeneous for a Scottish city. The UNESCO World Heritage Site (inscribed 1995) covers two distinct quarters: the medieval Old Town (EH1, EH8) of pre-1700 closes, tall tenement lands and the Royal Mile spine, and the Georgian New Town (EH1, EH2, EH3) of Robert Adam-era terraces, crescents and squares built between 1767 and 1830 β entire blocks are Grade A listed. Beyond the World Heritage boundary, the Victorian tenement belt of Marchmont, Bruntsfield, Morningside, Newington and Tollcross (EH9, EH10, EH8, EH3) provides Edinburgh's stock of solid-stone four-storey tenements with shared closes β comparable to Glasgow's sandstone tenement belt and the highest-volume ECO4 catchment in the inner city. Leith (EH6) adds a port-and-warehouse mix of Edwardian terraces, 1960s social blocks and the Category A listed Cables Wynd House Brutalist tower (now subject to a major retrofit). The outer post-war housing schemes of Wester Hailes (EH14), Sighthill (EH11), Niddrie and Craigmillar (EH16), Pilton, Granton and Muirhouse (EH4/EH5) β all in SIMD 2020 decile 1-3 data zones β combine four-in-a-block flats and tower-block remnants where Economy 7 electric storage heating is still common. The combination β UNESCO-constrained heritage stock in the centre, Victorian tenement belt in the middle ring, and post-war SIMD-deprived schemes on the outer ring β makes Edinburgh one of Scotland's highest-impact ECO4 cities for combi replacement on the tenement belt and First-Time Central Heating on the outer estates, with carefully-managed retrofit on the listed terraces.
Total dwellings
245,310
as of 2024-03
Private sector
β
owner-occupied + rented
Social housing
β
registered providers
Bottom line: Edinburgh's mix of pre-1919 and post-war stock is exactly the catchment ECO4 targets. The mandatory PAS 2035 retrofit assessment will confirm the SAP uplift for your specific address.
SGN is the Gas Distribution Network operator for Scotland and Southern England β that includes every EH1βEH17 postcode.
~10 m connection
Β£500βΒ£800
50 m+ connection
Β£1,500βΒ£2,500
If your property is already on the gas main β most Edinburgh addresses are β there is nothing to pay. ECO4 funds the boiler, internal pipework, controls, meter installation, and safe removal of the old system.
SGN's indicative pricing toolBottom line: Almost every Edinburgh address (EH1βEH17) is already on the SGN gas main, so the connection cost is Β£0. The rare off-main cases sit on the outer fringes and pay SGN separately for the new connection.
Home Energy Scotland is the Scottish Government's free advice service (freephone 0808 808 2282). It administers Warmer Homes Scotland, a separate parallel scheme. Edinburgh applicants typically check both ECO4 (council-validated through approved installers) AND Warmer Homes Scotland (Home Energy Scotland-administered). The pragmatic order is ECO4 first if you receive a qualifying benefit or pass the Β£31k income test, with Warmer Homes Scotland as the fallback. Edinburgh's listed-building constraints in the New Town also push some Old Town flats towards Home Energy Scotland's Warmer Homes Scotland route rather than ECO4 measures that would need conservation consent.
Home Energy ScotlandBottom line: Home Energy Scotland runs in parallel with ECO4 β the eligibility tests are independent, so check both before you decide which to apply for first.
You may have seen the successor scheme called "ECO5" online β there is no ECO5. The government has abolished the Energy Company Obligation model and replaced it with the Warm Homes Plan β a Β£15 billion programme funded by public investment rather than levies on energy bills. ECO4 still runs until 31 December 2026, so Edinburgh households should apply now while the scheme is open.
Low-income grants
Β£4.4 bn
Warm Homes Social Housing Fund + Local Grant
Boiler Upgrade Scheme
Β£7,500
per household, clean-heat grant
Delivery moves from Ofgem to a new Warm Homes Agency, with the Social Housing Fund and Local Grant consolidating into a single low-income capital scheme by 2027/28. The Scottish allocation comes through Barnett Consequentials and continues to flow via Home Energy Scotland / Warmer Homes Scotland.
Sources: gov.uk β Warm Homes Plan (updated 18 March 2026); Ofgem response to the Warm Homes Plan.
Bottom line: ECO4 closes 31 December 2026. The Warm Homes Plan replaces it from 2027 β apply now while the current scheme is still open and the Β£4,000βΒ£8,000 install value is fully funded.
Property
Late-Victorian top-floor stone tenement flat (third-floor, two-bed, solid-wall) within a close of eight flats off Warrender Park Road
Existing system
Mid-1990s non-condensing gas combi mounted in the kitchen, no programmable controls, original cast-iron radiator circuit with no TRVs; EPC band E
Measure installed
Old non-condensing combi decommissioned and recycled; new wall-hung A-rated condensing combi sited in the same kitchen position with a fresh balanced flue routed through the rear wall (avoiding the shared close stairwell); full flush of the existing iron radiator circuit; programmable smart controls and TRVs fitted across all radiators. Flue route checked against Edinburgh Council tenement building-control guidance.
Outcome
EPC modelled uplift from band E to band C; first-winter gas demand reduced by roughly a fifth; the homeowner paid Β£0 (qualified via Universal Credit; EPC E was the deciding SAP-uplift factor; declaration submitted via an Approved Installer per the SoI process).
Time on site
One full day on site once parts and flue route were confirmed.
Illustrative β based on typical EH1βEH17 installs, not a single named customer.
Bottom line: Typical Edinburgh installs deliver a two-band EPC uplift in a single intervention at Β£0 to the qualifying household. Your individual case depends on the PAS 2035 assessment, but the EH9 Marchmont pattern above is representative.
Total install value typically Β£4,000βΒ£8,000.
Most Edinburgh addresses are already on the gas main β nothing extra to pay.
Bottom line: If your ECO4 application is approved, the install is Β£0 β typical install value Β£4,000βΒ£8,000. The only out-of-pocket case is a brand-new gas-main connection from off-grid, which is uncommon in Edinburgh.
Run our wizard or call +44 7375 868046.
A free home survey by an accredited assessor confirms the right measure for your property.
Gas Safe install, building-control sign-off, lodged on the TrustMark Data Warehouse.
Prefer to contact City of Edinburgh Council directly?
Installer chain verified via TrustMark and Ofgem ECO4 Delivery Guidance v4.0.
Bottom line: From the 49-second eligibility check to a commissioned boiler, a typical Edinburgh ECO4 job runs five to seven weeks. The wizard above is the fastest start β or call +44 7375 868046.
Yes, but with an important process quirk. Edinburgh's ECO4 + GBIS Flex Statement of Intent v.4 (published 22 October 2024, signed by Chief Executive Paul Lawrence) sets out three active routes: Route 1 (gross household income under Β£31,000 with EPC D-G owner-occupied or E-G private rented), Route 2 (two of six active proxies β SIMD 2020v2 decile 1-3 data zones, Council Tax Reduction, NICE NG6 cold-vulnerability, free school meals, energy-supplier or Citizens Advice Scotland referral; Proxy 5 council-named scheme and Proxy 7 supplier debt data are explicitly NOT used), and Route 3 (GP / Scottish Health Board / NHS Trust referral with income disregarded). Route 4 bespoke targeting is also not used. Critical quirk: Edinburgh ONLY accepts Declaration requests from approved ECO4/GBIS installers β households must go through an installer on the council's Approved Installer List, not contact the council directly. General SoI enquiries: LHEES@edinburgh.gov.uk.
Yes for the boiler itself β but the flue routing and any external work need listed-building consent because the entire New Town is part of the UNESCO World Heritage Site and the Georgian blocks are Grade A listed. Edinburgh's Listed Buildings and Conservation Areas guidance (September 2025) encourages secondary glazing as the conservation-friendly retrofit approach for windows; for the boiler swap itself, the wall-mounted condensing combi is normally fine inside the property, but the new balanced flue cannot exit through the front elevation onto Queen Street, George Street or any principal listed facade. Most New Town installs route the flue through a rear wall or an existing redundant chimney. Your PAS 2035 retrofit assessor will flag the consent requirement before the install is approved.
SGN (Scotland Gas Networks branch) is the GDN for all EH1-EH17 postcodes. ECO4 covers the new boiler, internal pipework, the meter installation and the removal of the old system at no cost. The connection from your meter to the SGN main is separate β for a standard connection where the meter is within 20 metres of an existing main, SGN's published service charge for Scotland is around Β£893 plus VAT, with longer runs costing more. Almost every Edinburgh address is already on the gas main (the outer Pentlands fringe is the main off-main exception); SGN publishes a quick-estimate tool and a downloadable Scotland service-charges document so you can check the figure before applying.
Yes β 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. Wester Hailes (EH14), Sighthill (EH11), Niddrie and Craigmillar (EH16), Pilton, Granton and Muirhouse (EH4/EH5) all sit in SIMD 2020v2 decile 1-3 data zones, which is one of the strongest Route 2 proxies. Most blocks are connected to the SGN 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.
Home Energy Scotland (freephone 0808 808 2282) is the Scottish Government's free advice service and administers Warmer Homes Scotland, which funds heating and insulation work for fuel-poor households via Warmworks as the managing agent. ECO4 is the separate UK-wide scheme funded by energy suppliers and delivered (in Edinburgh) by accredited installers on the Council's Approved Installer List with declarations signed by the LHEES team. An Edinburgh household can be eligible for one, both, or neither β the routes are independent. The pragmatic order is normally an ECO4 check first (because the boiler-replacement uplift is faster and the income test is straightforward), with Warmer Homes Scotland as the fallback for households that do not pass the ECO4 benefit, income or proxy tests, especially those in listed Old Town and New Town properties where the ECO4 conservation-consent overhead is higher.
From the initial installer contact to a commissioned new boiler, a typical Edinburgh job runs six to eight weeks β longer than the five-to-seven-week average elsewhere because of the installer-only referral process and (for listed properties) the listed-building consent step. The eligibility check with an Approved Installer takes 49 seconds. The PAS 2035 retrofit assessment is usually booked within ten working days, with surveyors operating across the centre, Leith, the tenement belt and the outer EH11/EH14/EH16 estates. The install itself is one full day for a standard Marchmont tenement combi swap, two to three days for the outer-estate FTCH conversions, and longer where listed-building consent on a New Town flue route is needed.
ECO4 closes 31 December 2026. After that, the Β£15 billion Warm Homes Plan takes over from April 2027 β 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 β that name is not used by government and no scheme by that title exists. For Edinburgh 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 Β£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.
gov.uk β Energy Company Obligation (ECO4)
Qualifying benefits and EPC band rules
Ofgem β ECO4 Delivery Guidance v4.0 (March 2026)
Scheme closure 31 December 2026, measure rules
gov.uk β Warm Homes Plan
Β£15bn ECO4 successor scheme, updated 18 March 2026
City of Edinburgh Council β Energy Company Obligations (ECO4) page
last updated 2024-10-22
City of Edinburgh Council β ECO Flexible Eligibility Statement of Intent
LA Flex thresholds and vulnerability criteria
SGN β new gas connection page
GDN-side connection-cost guidance
Scottish Government β Housing Statistics for Scotland 2024 (Council Tax Base stock)
Dwelling counts for Edinburgh (2024-03)
Scottish Government β Housing Statistics for Scotland 2024 (stock by tenure)
Regional EPC band distribution
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49-second form. No commitment. No cost. EH1βEH17 households on Universal Credit, Pension Credit, PIP, ESA, JSA, Income Support, Housing Benefit or Child Benefit β start here. Apply under ECO4 now (closes 31 December 2026); the Warm Homes Plan (sometimes searched as "ECO5") replaces it from April 2027.