Methodology & data sources

Compare Block Managers is an independent directory of UK block & property management companies. This page explains where our data comes from, how we present ratings and accreditation, and — importantly — the limitations you should keep in mind.

What's in the directory

We list 1,333 companies accredited by The Property Ombudsman (TPO) under Block & Estate Management, or members of The Property Institute (TPI). Accreditation is our inclusion bar: these are businesses that have registered with a recognised redress scheme. We do not list every company that manages property.

Data sources

Data	Source
Accreditation (TPO / TPI), Right-to-Manage & smaller-blocks willingness	The Property Ombudsman and The Property Institute public directories
Company identity, registered office, age, financial-health flags	Companies House (register + API)
Google ratings & review counts	Google Maps business listings
Trustpilot ratings & review counts	Trustpilot company pages
Office coordinates	Registered postcode geocoded via postcodes.io
Area leasehold share (%)	House of Commons Library leasehold sales statistics (CBP-10309)
Leasehold dwelling counts (region)	DLUHC/MHCLG Leasehold Dwellings, 2024-25
Dwelling stock (local authority)	ONS/MHCLG Live Table 125

How we present ratings

We show both Google and Trustpilot scores side by side rather than blending them into one number. Where the two disagree significantly, we flag it — divergence is a signal worth investigating, not something to average away. We do not rank companies by a single proprietary score.

How we classify companies

Scale (national / regional / local) is inferred from whether a company is a chain, how many regions it covers, and how many areas it appears in.
Block specialist means the company's website signals block management without also being a general lettings/sales agency.
Years trading is from the Companies House incorporation date.
Warning flags surface TPO expulsion and Companies House signals (dormant accounts, insolvency history, overdue accounts, dissolved/liquidation status).

Limitations

Ratings reflect the company overall, not your local office. A national manager's score is company-wide (or aggregated across branches); your development's experience may differ.

Review coverage is partial. Roughly a quarter of accredited companies have a Trustpilot page; Google coverage is broader but still incomplete. "No public reviews" means we found none — not that the company is poor.

"Operates in this area" is best-effort. We classify a company as based, has an office, or serves an area. "Serves" is derived from search-result coverage and can occasionally include a company with only a light presence there.

Leasehold market-size figures are estimates. Regional leasehold dwelling counts are official (DLUHC). City-level figures multiply local dwelling stock by a leasehold sales percentage — and because flats (almost always leasehold) sell more often than houses, this over-states the true leasehold share of stock. Treat city figures as a relative indicator, not a precise count.

Right-to-Manage & smaller-blocks tags are TPI-only. Only The Property Institute publishes these, so they're shown for TPI members and absent (not "no") for TPO-only companies.

Company data is point-in-time. Accreditation, ratings, and Companies House status change; we refresh periodically but a listing may lag reality. Always confirm current status with the company and the official registers before deciding.

Names and matching. We use registered/trading names from the official directories; a small number may display an imperfect trading name or, rarely, an incorrect data match. Expulsion is matched only by exact company number to avoid wrongly flagging a similarly-named firm.

Last updated June 2026. Spotted an error? We welcome corrections.