Number 1 Claim Substantiation & Verification Methodology
Last Audited: September 2026
Primary Claim: Scotland’s No. 1 Rated Boiler Installer / Heating Specialist
At The Edinburgh Boiler Company, we believe in complete transparency. Where we make statements regarding our market position, customer ratings, or industry standing, including references to being “Scotland’s No. 1 Rated Boiler Installer” or “Scotland’s Highest Rated Installer”, we ensure those claims are fully substantiated, verifiable, and audited in accordance with the UK Code of Non-broadcast Advertising and Direct & Promotional Marketing (CAP Code) rules on comparative claims.
Methodology & Competitive Perimeter
To establish objective accuracy under ASA guidelines, our “No. 1 Rated” claim is evaluated using a clearly defined comparison set and review dataset:
Defined Competitive Perimeter: Independent, private heating installation companies headquartered and maintaining physical operational depots in Scotland. (This explicitly excludes national energy conglomerates such as British Gas, national online brokers without local installation infrastructure like BOXT or Heatable, and sole-trader plumbers operating without dedicated multi-engineer teams).
Evaluation Metrics: Aggregate total of published, verified customer reviews and overall star-rating averages across Trustpilot and Google Business Profile.
Audit Frequency: Snapshot data is audited and time-stamped on a quarterly basis.
Performance Data Benchmark Matrix
Below is the comparative audit snapshot taken across key regional and national Scottish competitors:
| Company Name | Headquartered Region | Google Reviews (Score / Count) | Trustpilot Reviews (Score / Count) | Combined Total Reviews | Overall Customer Rating |
| The Edinburgh Boiler Company | Edinburgh & Central Scotland | 4.9 / 2,200+ | 4.9 / 2,800+ | 5,000+ | 4.9 / 5.0 (Excellent) |
| Homeheat Limited | Lanarkshire / Greater Glasgow | 4.8 / ~320 | 4.8 / ~770 | ~1,090 | 4.8 / 5.0 |
| HeatFix Scotland | Midlothian / Edinburgh | 4.8 / ~350 | 4.9 / ~320 | ~670 | 4.8 / 5.0 |
| Clearwater Plumbing & Heating | Central Scotland | 4.8 / ~110 | 4.8 / ~620 | ~730 | 4.8 / 5.0 |
| Scott Findlay Plumbing & Heating | Edinburgh & Lothians | 4.9 / ~410 | 4.9 / ~160 | ~570 | 4.9 / 5.0 |
| The Glasgow Boiler Company | Greater Glasgow | 4.8 / ~220 | 4.8 / ~290 | ~510 | 4.8 / 5.0 |
| Heatco Scotland Ltd | Lanarkshire / West Scotland | 4.7 / ~180 | 4.8 / ~210 | ~390 | 4.7 / 5.0 |
Data compiled directly from public Trustpilot profiles and verified Google Business Profile listings. Figures rounded down to the nearest increment of 10 for consistency.
Verification Summary
With over 5,000 verified customer reviews and a consistent 4.9/5 (“Excellent”) rating profile, The Edinburgh Boiler Company maintains:
The highest total volume of verified positive customer reviews of any independent Scottish-headquartered heating installer.
The top customer rating average (4.9/5) across combined review aggregators.
