Last Updated on November 4, 2026

iHeat scores highest of the ten UK boiler repair and installation brands compared, at 7.7 out of 10 on the Whito leaderboard.
Opinion and analysis. Whito read every brand below by hand, using publicly visible activity only: the first five on 12 October 2026 and the five added to make this a top ten on 23 October 2026, against the same fixed anchors and the same ten searches (run again on 22 October 2026). Each channel is scored 0 to 10, set out under How we scored, so a score describes what we could see on the day, not the quality of the service. Brands cannot pay to appear or to change a score. Where a figure is not published, we say so.
The boiler trade runs on trust, and most firms show it with a logo. iHeat, top of this board at 7.7, shows it with numbers instead: its Gas Safe number, its boiler prices and the names of its managers, all on the homepage.
iHeat is also the brand that holds search, appearing in 5 of 10 UK searches. Hometree appeared once; the other eight, including British Gas, HomeServe and Worcester Bosch, appeared in none. Behind iHeat, CORGI HomePlan, HomeServe and Hometree share second place on 6.1.
Boiler Central scores lowest at 3.7. Its social icons lead nowhere, no ads were found for it, and it advertises finance with no FCA reference on the homepage. The company that traded as Boiler Central Ltd is in administration, and replies on Trustpilot say the brand now has new owners.
What can your business learn?
Who’s leading? iHeat, with 7.7 out of 10 across seven channels.
Why are they leading? Its highest-scoring channels are Website (10/10) and Paid (10/10).
Where’s the opportunity? SEO is the weakest channel on this board. The ten brands average 3.6 out of 10 on it, and 8 of them score 3 or less.
What can you copy? Three of the lessons further down this page:
- Print your Gas Safe number
- Show a price for a service
- Reply in your own words
Read all five lessons · Scores measure visible marketing, not sales, profit or market share.
The leaderboard
| Rank | Brand | Social | Website | SEO | Paid | Reviews | Brand | Average | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | iHeat | 6 | 10 | 4 | 9 | 10 | 9 | 6 | 7.7 |
| 2 | CORGI HomePlan | 6 | 8 | 4 | 3 | 8 | 10 | 4 | 6.1 |
| 2 | HomeServe | 6 | 7 | 6 | 3 | 10 | 7 | 4 | 6.1 |
| 2 | Hometree | 6 | 8 | 4 | 5 | 8 | 8 | 4 | 6.1 |
| 5 | 24|7 Home Rescue | 6 | 8 | 6 | 3 | 6 | 9 | 4 | 6.0 |
| 6 | WarmZilla | 6 | 8 | 7 | 3 | 8 | 5 | 4 | 5.9 |
| 7 | Worcester Bosch | 6 | 8 | 4 | 2 | 10 | 8 | 2 | 5.7 |
| 8 | Ideal Heating | 6 | 7 | 2 | 3 | 6 | 8 | 4 | 5.1 |
| 9 | British Gas | 2 | 7 | 4 | 2 | 8 | 6 | 6 | 5.0 |
| 10 | Boiler Central | 0 | 9 | 4 | 3 | 2 | 6 | 2 | 3.7 |
Average is the simple mean of the seven channel scores, rounded to one decimal place. Brands on the same average share a rank and are listed A to Z. iHeat, CORGI HomePlan, WarmZilla, British Gas and Boiler Central read 12 October 2026; HomeServe, Hometree, 24|7 Home Rescue, Worcester Bosch and Ideal Heating read 23 October 2026, with the ten searches run again on 22 October 2026.
Company verdicts
iHeat, 7.7
iHeat scores 7.7, the highest of the ten. Its website scores 10: boiler prices on the page (Worcester Greenstar 4000 at £2,445), a fixed quote in 60 seconds, next-day installation for orders before 3pm, and Gas Safe number 636096 printed. Search scores 9, with iheat.co.uk appearing in 5 of 10 UK searches on 12 October, and again in 5 when the searches were run again on 22 October, by far the most here. Paid scores 10, with about 200 Google ads and 25 Meta ads. Reviews score 9 from 4.7 on 11,094 Trustpilot reviews. Brand scores 6 because it names managers and a Gas Safe guide author. Its clearest gap is replies: only 2 of its latest 20 reviews have one.
CORGI HomePlan, 6.1
CORGI HomePlan scores 6.1, level second with HomeServe and Hometree. Reviews score 10, the only top mark here, from 4.8 on 69,588 Trustpilot reviews with replies to 10 of the latest 20. Its website scores 8: four boiler cover plans from £17 a month and an FCA number, although the boiler service price shows as a blank ‘£ a month’. Paid scores 8, mostly on Meta, with 36 Meta ads against 2 Google ads. The legal footer names HTG Home Services Limited, while Companies House shows that company number renamed OVO Home Services Ltd on 1 September 2025. Hometree’s newsroom reports an agreement to buy OVO’s Home Services division, which includes CORGI HomePlan. The clearest gap is search: corgihomeplan.co.uk appeared in none of 10 UK searches.
HomeServe, 6.1
HomeServe scores 6.1, level second with CORGI HomePlan and Hometree. Paid scores 10, with about 300 Google ads and 24 active Meta ads. Reviews score 7 from 4.6 on 194,414 Trustpilot reviews, held back by no replies on the latest 20. Its website scores 7, with boiler cover from £6.49 a month on the homepage but no FCA firm reference number shown there. Email scores 6 for the MyHomeServe app. homeserve.co.uk appeared in none of 10 UK searches, with an advice blog adding a point.
Hometree, 6.1
Hometree scores 6.1, level second with CORGI HomePlan and HomeServe. It is one of only two brands on the board to appear in any of the 10 UK searches, for ‘boiler cover comparison’, and a blog adds a point, so SEO scores 5. Its website scores 8: cover from £12.95 and its FCA firm reference number shown. Paid scores 8, with 48 Google ads and 3 Meta ads. Reviews score 8 from 4.7 on 18,541 Trustpilot reviews, held back by no replies on the latest 20. Email scores 4 for a login.
24|7 Home Rescue, 6.0
24|7 Home Rescue scores 6.0. Reviews score 9 from 4.7 on 104,646 Trustpilot reviews, with replies to 2 of the latest 20. Its website scores 8, with monthly prices such as boiler cover from £6.90 and its FCA firm reference number on the homepage. Email scores 6 for its app, and social 6 for six platforms. Paid scores 6 on about 200 Google ads, with no active Meta ads found from its page. 247homerescue.co.uk appeared in none of 10 UK searches, with a blog of boiler guides adding a point.
WarmZilla, 5.9
WarmZilla scores 5.9. Email scores 7, the highest on the board, because customers create a Home Hub account and a referral discount applies at checkout. Its website scores 8: a pick-and-book installation date flow, guides and calculators, and an FCA number, but no prices on the homepage and no Gas Safe number printed. Paid scores 8, with 17 Google ads and 15 Meta ads, and it links five social platforms including TikTok. The site features a mascot, Derek the Dinosaur. Reviews score 5 from 4.3 on 2,122 Trustpilot reviews with no replies on the latest 20, its clearest gap.
Worcester Bosch, 5.7
Worcester Bosch scores 5.7. Paid scores 10, with 50 Google ads and 13 active Meta ads across its consumer and Professional pages. Its website scores 8, showing an example installed price of £2,550 and an FCA firm reference number beside finance. Reviews score 8 from 4.7 on 52,518 Trustpilot reviews, with no replies on the latest 20. Brand scores 2 and SEO 2: no single positioning line on the homepage, a blog that is mostly company news, and no appearance in any of 10 UK searches.
Ideal Heating, 5.1
Ideal Heating scores 5.1. Reviews score 8 from 4.8 on 79,314 Trustpilot reviews, the highest rating among the five brands added, held back by no replies on the latest 20. Its website scores 7, with an installer finder and a care plan from £22.50 a month but no installed boiler price. Paid scores 6 on 71 Google ads, with no active Meta ads found from its page. Email scores 2 for warranty registration, and idealheating.com appeared in none of 10 UK searches, with a tips and advice library adding a point.
British Gas, 5.0
British Gas scores 5.0. It is the only brand on the board with three or more independent news mentions in the 90 days to 12 October 2026, and brand scores 6. Paid scores 8, with about 500 Google ads and 7 Meta ads. Its website scores 7: online booking for boiler repair, a free online new-boiler quote and offers such as up to £300 off a new boiler, but no repair price or Gas Safe number on the homepage. Reviews score 6: 358,751 Trustpilot reviews at 4.4, the most on the board, with no replies on the latest 20. Search and social are its gaps: 0 of 10 searches, and only an @BritishGas handle found.
Boiler Central, 3.7
Boiler Central scores 3.7, the lowest of the ten. Its website scores 9: a quote ‘in 20 seconds’, fixed prices, installation date booking and Gas Safe number 656542 printed, although finance is offered with no FCA reference on the homepage. Reviews score 6 from 3.7 on 6,347 Trustpilot reviews. Replies appear on 17 of the latest 20, all using the same ‘Under New Ownership’ text, and Companies House shows Boiler Central Ltd in administration. Social scores 0 because the icons link nowhere, and paid scores 2 with no ads found.
What the channels show
Prices and numbers on the page
iHeat scores 10 on website by printing boiler prices, a fixed quote and its Gas Safe number. Boiler Central (9) also prints a Gas Safe number and offers an instant quote. Five more score 8: CORGI HomePlan, Hometree, 24|7 Home Rescue and Worcester Bosch show a price beside an FCA firm reference number, and WarmZilla offers pick-and-book installation with an FCA number. HomeServe and Ideal Heating show prices but no number on the homepage and score 7, as does British Gas. The more a customer can check before calling, the higher the score.
One brand holds search
iHeat appeared in 5 of 10 UK searches, on both 12 and 22 October. Hometree appeared once, for ‘boiler cover comparison’. The other eight brands appeared in none, despite most of them running advice libraries. Searches such as ‘boiler repair Manchester’ and ‘boiler service Leeds’ are not held by the national names compared here. For a local gas engineer, these are winnable searches, and a page per town and service is the place to start.
Cover brands lead on reviews
CORGI HomePlan scores 10 on reviews from 69,588 Trustpilot reviews at 4.8, with replies on 10 of the latest 20. Six of the ten hold 4.7 or more, but most reply to none of their latest 20: HomeServe, Hometree, Worcester Bosch, Ideal Heating, WarmZilla and British Gas among them. Boiler Central replies often, but with the same text each time. Replies written for each customer read differently from a pasted template.
Meta ads sell boiler cover
CORGI HomePlan ran 36 Meta ads against 2 Google ads, iHeat 25 Meta alongside about 200 Google, and HomeServe 24 Meta alongside about 300 Google. 24|7 Home Rescue and Ideal Heating ran Google ads only, about 200 and 71. No ads were found for Boiler Central. Cover is a monthly product sold to people who are not yet in trouble, which may explain why it is advertised in social feeds as well as search.
Key lessons for any gas engineering or boiler business
Print your Gas Safe number
iHeat prints 636096 and Boiler Central 656542 on their homepages. None of the other eight showed a Gas Safe number on the homepages read. Your number next to the Gas Safe logo lets a customer check you on the register in seconds.
Show a price for a service
iHeat lists boiler prices such as £2,445 for a Worcester Greenstar 4000 and scores 10 on website. Worcester Bosch shows an example installed price of £2,550. CORGI HomePlan’s service price shows as a blank. A fixed price for an annual service and a typical repair answers the first question most customers ask.
Reply in your own words
Boiler Central replies to 17 of its latest 20 reviews, but every reply uses the same text. CORGI HomePlan replies to half, and scores 10 on reviews. A short, specific reply to each review reads as a person, not a template.
Keep your legal details current
CORGI HomePlan’s footer still names HTG Home Services Limited after its company was renamed in September 2025, and Boiler Central’s site names no trading company at all. Show your current company name and number in the footer, and check it against Companies House once a year.
Show your FCA number beside finance
Hometree, 24|7 Home Rescue and Worcester Bosch show FCA firm reference numbers on their homepages. Boiler Central offers finance with no FCA reference on its homepage. If you offer finance or cover, show the reference clearly next to the offer, so a customer can check it on the FCA register.
Steal this playbook
Five moves from this leaderboard, ranked by return on effort.
- Add your Gas Safe number to every page. iHeat, top of the board, prints its number on the homepage; eight of the ten brands do not.
- Reply to every review, in your own words. CORGI HomePlan replies to half its latest reviews and scores 10, while identical replies earn Boiler Central less trust.
- Publish a fixed price for a boiler service. iHeat scores 10 on website with prices on the page; CORGI HomePlan’s service price shows blank.
- Write a page for each town you cover. Eight of the ten brands appeared in none of 10 UK searches, including town searches.
- Check your footer shows your current company name and number. CORGI HomePlan and Boiler Central both show legal details that do not match Companies House.
The evidence behind the scores
One line per channel, as read on the date shown for each brand. Review figures change daily; these are the numbers on the day we looked.
iHeat
Read 12 October 2026.
- Social 6: Links to Facebook, X, Instagram, LinkedIn and YouTube, five platforms in all.
- Website 10: Boiler prices on the page (Worcester Greenstar 4000 £2,445), a fixed quote in 60 seconds, install date booking with next-day slots, and Gas Safe number printed.
- Email 4: The online quote flow collects contact details; no account, newsletter or referral scheme seen.
- SEO 9: 5 of 10 UK web searches returned iheat.co.uk in the top ten, plus credit for an advice and guides library.
- Paid 10: Google Ads Transparency Centre, UK, last 30 days, by domain iheat.co.uk: about 200 ads. Meta Ad Library, UK, active ads naming the brand: 25.
- Reviews 9: Trustpilot 4.7 from 11,094 reviews, with a company reply on 2 of the latest 20.
- Brand 6: Same name everywhere, a clear positioning line (‘Home energy, sorted.’) and named managers plus a Gas Safe guide author; no long-running asset or three recent news mentions found.
CORGI HomePlan
Read 12 October 2026.
- Social 6: Links to Facebook, X and YouTube, three platforms in all.
- Website 8: Four boiler cover plans from £17 a month, an FCA number and a portal login; the boiler service price shows as a blank ‘£ a month’.
- Email 4: A customer portal login; no newsletter, app or referral scheme seen.
- SEO 3: 0 of 10 UK web searches returned corgihomeplan.co.uk in the top ten, plus credit for an advice and guides library.
- Paid 8: Google Ads Transparency Centre, UK, last 30 days, by domain corgihomeplan.co.uk: 2 ads. Meta Ad Library, UK, active ads naming the brand: 36.
- Reviews 10: Trustpilot 4.8 from 69,588 reviews, with a company reply on 10 of the latest 20.
- Brand 4: Same name everywhere and a clear positioning line (‘Boiler cover you can count on’); no long-running asset, named people or three recent news mentions found.
HomeServe
Read 23 October 2026.
- Social 6: Links to Facebook, X, YouTube, Instagram and LinkedIn, five platforms in all.
- Website 7: Boiler cover priced on the homepage (from £6.49 a month, with a 50p-a-month offer) and pages for plumbing, heating and electrics; FCA authorisation stated but no firm reference number shown on the homepage.
- Email 6: The MyHomeServe app and account for claims, documents and booking a boiler service; no newsletter seen.
- SEO 3: 0 of 10 UK web searches returned homeserve.co.uk (searches run 22 October 2026) in the top ten, plus credit for a living and advice blog.
- Paid 10: Google Ads Transparency Centre, UK, last 30 days, by domain homeserve.co.uk: about 300 ads. Meta Ad Library, UK, active ads from the HomeServe UK page, read 23 October 2026: 24.
- Reviews 7: Trustpilot 4.6 from 194,414 reviews, with no company reply on the latest 20.
- Brand 4: Same name everywhere and a clear positioning line (‘Home Emergency Cover you can count on’); no long-running asset or named people confirmed; three recent news mentions not checked.
Hometree
Read 23 October 2026.
- Social 6: Links to Instagram, LinkedIn, X and Facebook, four platforms in all.
- Website 8: Boiler and home cover priced from £12.95, a get-a-quote route and its FCA firm reference number (935444) shown.
- Email 4: A customer login; no newsletter or app seen.
- SEO 5: 1 of 10 UK web searches returned hometree.co.uk (searches run 22 October 2026) in the top ten (‘boiler cover comparison’), plus credit for a blog of guides.
- Paid 8: Google Ads Transparency Centre, UK, last 30 days, by domain hometree.co.uk: 48 ads. Meta Ad Library, UK, active ads from the Hometree page, read 23 October 2026: 3.
- Reviews 8: Trustpilot 4.7 from 18,541 reviews, with no company reply on the latest 20.
- Brand 4: Same name everywhere and a clear positioning line (‘Helping keep your home working all year round’); no long-running asset or named people confirmed; three recent news mentions not checked.
24|7 Home Rescue
Read 23 October 2026.
- Social 6: Links to Instagram, Facebook, X, TikTok, YouTube and LinkedIn, six platforms in all.
- Website 8: Monthly prices on the homepage (boiler cover from £6.90, home emergency cover from £3.99) and its FCA firm reference number (935754).
- Email 6: The 24|7 Home Rescue app for managing claims and the account, plus an offer form; no newsletter seen.
- SEO 3: 0 of 10 UK web searches returned 247homerescue.co.uk (searches run 22 October 2026) in the top ten, plus credit for a blog of boiler guides and fault-code explainers.
- Paid 6: Google Ads Transparency Centre, UK, last 30 days, by domain 247homerescue.co.uk: about 200 ads. Meta Ad Library, UK, read 23 October 2026: no active ads found from a 24|7 Home Rescue page.
- Reviews 9: Trustpilot 4.7 from 104,646 reviews, with a company reply on 2 of the latest 20.
- Brand 4: Same name everywhere and a clear positioning line (‘We Help, We Repair, We Care!’); no long-running asset or named people confirmed; three recent news mentions not checked.
WarmZilla
Read 12 October 2026.
- Social 6: Links to Facebook, Instagram, X, TikTok and LinkedIn, five platforms in all.
- Website 8: A pick-and-book installation date flow, Home Hub account, guides and calculators, and an FCA number; no prices on the homepage and no Gas Safe number printed.
- Email 7: Home Hub account creation plus a referral discount applied at checkout; no newsletter seen.
- SEO 3: 0 of 10 UK web searches returned warmzilla.co.uk in the top ten, plus credit for an advice and guides library.
- Paid 8: Google Ads Transparency Centre, UK, last 30 days, by domain warmzilla.co.uk: 17 ads. Meta Ad Library, UK, active ads naming the brand: 15.
- Reviews 5: Trustpilot 4.3 from 2,122 reviews, with no company reply on the latest 20.
- Brand 4: Same name everywhere and a clear positioning line (‘Making home services easy’); a mascot, Derek the Dinosaur, appears but no long-running use, named people or three recent news mentions found.
Worcester Bosch
Read 23 October 2026.
- Social 6: Links to Facebook, Instagram, X and YouTube, four platforms in all.
- Website 8: An example installed price (Greenstar 1000 30kW package £2,550 including VAT and installation), an online quote route through Worcester Accredited installers and an FCA firm reference number (918503) beside the finance example.
- Email 4: A MyBosch customer login; no newsletter or app seen.
- SEO 2: 0 of 10 UK web searches returned worcester-bosch.co.uk (searches run 22 October 2026) in the top ten.
- Paid 10: Google Ads Transparency Centre, UK, last 30 days, by domain worcester-bosch.co.uk: 50 ads. Meta Ad Library, UK, active ads from the Worcester Bosch and Worcester Bosch Professional page, read 23 October 2026: 13.
- Reviews 8: Trustpilot 4.7 from 52,518 reviews, with no company reply on the latest 20.
- Brand 2: Same name everywhere; no single positioning line on the homepage (headings such as ‘Trusted by our customers’), the blog is mostly company news, and no named people confirmed; three recent news mentions not checked.
Ideal Heating
Read 23 October 2026.
- Social 6: Links to YouTube, Facebook, Instagram and LinkedIn, four platforms in all.
- Website 7: Product pages, an installer finder and a care plan priced from £22.50 a month; no installed boiler price or registration number shown.
- Email 2: A warranty registration route; no newsletter, consumer account or app seen (the login is for installers).
- SEO 3: 0 of 10 UK web searches returned idealheating.com (searches run 22 October 2026) in the top ten, plus credit for a tips and advice library.
- Paid 6: Google Ads Transparency Centre, UK, last 30 days, by domain idealheating.com: 71 ads. Meta Ad Library, UK, read 23 October 2026: no active ads found from a Ideal Heating page.
- Reviews 8: Trustpilot 4.8 from 79,314 reviews, with no company reply on the latest 20.
- Brand 4: Same name everywhere and a clear positioning line (‘We’re the UK’s leading heating manufacturer’), with heritage dated to 1906; no named people confirmed; three recent news mentions not checked.
British Gas
Read 12 October 2026.
- Social 2: Only the @BritishGas handle appears; no social profile links on the homepage.
- Website 7: Online boiler repair booking, a free online new-boiler quote and offers (25% off HomeCare, up to £300 off a boiler); no repair price or Gas Safe number on the homepage.
- Email 4: Online quote and booking flows; no loyalty scheme, newsletter or app shown on the homepage.
- SEO 2: 0 of 10 UK web searches returned britishgas.co.uk in the top ten.
- Paid 8: Google Ads Transparency Centre, UK, last 30 days, by domain britishgas.co.uk: about 500 ads. Meta Ad Library, UK, active ads naming the brand: 7.
- Reviews 6: Trustpilot 4.4 from 358,751 reviews, with no company reply on the latest 20.
- Brand 6: Same name, a clear positioning line (‘the largest UK energy and home services company’) and three or more news mentions in the 90 days to 12 October 2026; no long-running asset or named people.
Boiler Central
Read 12 October 2026.
- Social 0: Social icons are present but link nowhere; no social profiles found.
- Website 9: An online quote ‘in 20 seconds’, fixed prices, install date booking and Gas Safe number printed; no specific prices on the homepage, and finance offered with no FCA reference.
- Email 4: The online quote flow collects details; no account, newsletter or referral scheme seen.
- SEO 3: 0 of 10 UK web searches returned boilercentral.com in the top ten, plus credit for an advice and guides library.
- Paid 2: Google Ads Transparency Centre, UK, last 30 days, by domain boilercentral.com: no ads found. Meta Ad Library, UK, active ads naming the brand: none found.
- Reviews 6: Trustpilot 3.7 from 6,347 reviews, with a company reply on 17 of the latest 20, all using the same ‘Under New Ownership’ text.
- Brand 2: A clear positioning line (‘Next Day Nationwide’ new boiler installation); no working social links to compare, and no long-running asset, named people or three recent news mentions found.
How we scored
Who is on the board. Ten UK brands a householder is likely to meet when a boiler needs repair, servicing, cover or replacement, spanning models: British Gas (national energy company home services arm), CORGI HomePlan (boiler cover brand, registered company renamed OVO Home Services Ltd and subject to Hometree’s agreed purchase), WarmZilla (online-first boiler installer with account and referral), iHeat (online-first fixed-price boiler installer, 600+ engineers claimed), Boiler Central (online next-day boiler brand now under new ownership), HomeServe (national home emergency and boiler cover provider), Hometree (boiler and home cover provider), 24|7 Home Rescue (boiler cover, repair and installation provider), Worcester Bosch (boiler manufacturer selling through accredited installers) and Ideal Heating (boiler manufacturer with an installer network and care plans). BOXT and Heatable are left out because they already appear on another of our boards. Chosen for relevance and size, not marketing strength. Gas Safe and FCA numbers are as printed on each site and were not checked against the registers.
When we looked. The board launched with five brands, read on 12 October 2026. Five more were added to make a top ten: the ten searches were run again on 22 October 2026, and the five added brands were read on 23 October 2026 against the same anchors below, with Meta Ad Library counts read on 23 October 2026. The first five were not re-read, so their figures are as of 12 October.
- Social: which platforms the brand links to from its own site, and whether we could see recent posting and video.
- Website: 2 for a brochure page, 4 with a contact route on mobile, 6 with a page per service and a one-step enquiry, 8 with prices or ranges and registration numbers shown, 10 with online booking or an instant priced quote.
- Email: visible capture only, as we did not subscribe test inboxes for this edition. 2 for a bare newsletter form, 4 for a customer account, 6 for an app, 7 for a newsletter plus an app, up to 10 for a loyalty or app ecosystem with personal offers.
- SEO: ten UK searches for this trade, run through a standard web search API (12 October 2026 for the first five brands; run again on 22 October 2026 for the five added) (not personalised, no location set beyond the town in the query); we counted how many returned the brand’s own site in the top ten results. 0 of 10 scores 2, 1 to 2 scores 4, 3 to 4 scores 6, 5 to 6 scores 8, 7 or more scores 10, plus 1 for a substantial advice library. The searches: boiler repair near me; new boiler cost UK; boiler cover comparison; boiler service cost; combi boiler installation; boiler repair London; boiler repair Manchester; boiler installation Birmingham; boiler service Leeds; emergency boiler repair Glasgow.
- Paid: the Google Ads Transparency Centre (UK, last 30 days, by domain) and the Meta Ad Library (UK, active ads, counted by the brand’s own advertiser page). 2 for nothing found in either, 4 for active in one with fewer than 10 ads, 6 for active in both or 10+ in one, 8 for active in both with 10+ in at least one, 10 for 50+ Google ads and 10+ Meta ads. Paid describes visible activity, not quality. A low paid score is not a fault.
- Reviews: a fixed formula. Rating (4.7+ scores 4, 4.5 to 4.69 scores 3, 4.0 to 4.49 scores 2, 3.5 to 3.99 scores 1) plus volume (10,000+ scores 4, 1,000+ scores 3, 100+ scores 2, 20+ scores 1) plus replies to the latest 20 reviews (half or more scores 2, some scores 1).
- Brand: five checks worth 2 each: the same name and logo everywhere, one clear positioning line, a distinctive asset used for years, three or more independent press mentions in 90 days, and named people or expertise on the site. We award only what we could verify on the day.
These anchors are fixed for this edition, so the ten scores can be read against each other, allowing for the days between the reading dates. Boards published before October 2026 used scores relative to the other brands on the board, so compare across boards with care.
Common questions
Which boiler brand scores highest on the Whito leaderboard?
iHeat scores highest at 7.7 out of 10, well ahead of CORGI HomePlan, HomeServe and Hometree on 6.1. It prints boiler prices and its Gas Safe number on the homepage, offers a fixed quote in 60 seconds, appeared in 5 of 10 UK searches and ran about 200 Google ads and 25 Meta ads. Its weakest point is review replies, at 2 of its latest 20.
Which boiler brand scores lowest, and why?
Boiler Central scores 3.7. Its website scores well, but its social icons link nowhere, no ads were found, and it appeared in none of 10 UK searches. Its Trustpilot rating is 3.7 from 6,347 reviews. Boiler Central Ltd is in administration, and replies on Trustpilot say the brand has new owners.
How do boiler brands compare on reviews?
British Gas has the most Trustpilot reviews, 358,751 at 4.4, followed by HomeServe on 194,414 at 4.6, and neither replied to any of the latest 20. CORGI HomePlan scores the top mark of 10, with 4.8 from 69,588 and replies on 10 of the latest 20. Ideal Heating holds 4.8 from 79,314, and Boiler Central replies with the same text each time.
What can a local gas engineer copy from these brands?
Print your Gas Safe number on every page, as iHeat does. Publish a fixed price for a boiler service. Reply to each review in your own words. Keep your company name and number current in your footer. If you offer finance or cover, show the FCA reference beside it.
Do the big boiler brands show their Gas Safe number?
Only two of the ten show one on the homepages read: iHeat prints 636096 and Boiler Central prints 656542. The other eight, including British Gas, HomeServe, Worcester Bosch and Ideal Heating, showed none on the homepage. A printed number lets a customer check the register in seconds.
Corrections and right of reply
If your business is scored here and you think we have a fact wrong, email hello@whito.co.uk. We check it against the source, correct it within five working days if we are wrong, and publish your statement alongside if you want us to. Scores are never changed for payment or because a business has claimed a Whito listing. Full route: corrections, right of reply and removals.
Related: all UK marketing leaderboards · Gas Engineers on Whito
If your business is named here and you think we have a fact wrong, email hello@whito.co.uk and we will check it and correct it. If you want to respond, send us a statement and we will publish it alongside. Full detail: Corrections, right of reply and removals.


