Cut your landlord and communal energy bills, guaranteed
Communal power, void periods and HMO bills are where landlords quietly lose money every month. OptiFlow Watch reads every supply you are responsible for, catches deemed and out of contract rates the moment they hit and switches you when the market moves, with a saving guaranteed in writing.
Why landlords overpay
Landlord supplies are the classic soft target for high prices. Communal lighting, hallways, stairwells, lifts, boiler rooms and car parks all sit on business energy contracts, and those contracts drift onto deemed rates the moment a fixed deal ends or a new building comes on stream. Because no single tenant sees the bill, nobody chases it, and the supplier keeps charging the out of contract price for months.
Void periods make it worse. When a unit sits empty the supply reverts to the landlord and often lands on the most expensive rate in the market, sometimes without you realising the account switched into your name at all. Multiply that across a portfolio and the leakage is real money. OptiFlow Watch tracks every meter you are responsible for, flags the moment a supply goes onto a deemed rate and moves it back onto a fair contract before the cost mounts up.
Figures on this page are illustrative ranges for typical landlord and communal supplies. Your review uses your own meters and bills.
What a landlord typically pays
Communal energy
Roughly £1,500 to £20,000 a year per building depending on lifts, communal heating and the number of common areas. Deemed rates can double this without warning.
Void supplies
Empty units on out of contract rates can cost far more per unit than an occupied tenancy, often several hundred pounds across a portfolio over a year.
Water and connectivity
Communal water, drainage and any shared broadband or entry systems add further cost that is rarely reviewed once a building is set up.
Ranges vary widely by portfolio size and building type. The review gives you exact numbers.
Built for landlords
Portfolio wide view
Every communal and void supply across your buildings tracked in one place, so no meter slips quietly onto a deemed rate.
Void alerts
We catch supplies that revert to you when a unit empties and stop them sitting on the most expensive rate in the market.
Deemed rate rescue
The moment a fixed deal lapses onto out of contract prices, we spot it and move you back onto a fair contract.
HMO ready
Houses in multiple occupation carry their own bill patterns. We handle the landlord supplied energy and water behind them.
Guaranteed saving
Every switch we recommend comes with a saving guaranteed in writing before you agree to anything.
No broker games
Transparent pricing with no hidden commission baked into your unit rate, so you can see exactly what you pay for.
Common questions
Do you cover void period supplies?
Yes. Voids are one of the biggest sources of overpayment for landlords, and we watch for supplies reverting into your name so they never sit on a punishing rate.
Can you handle a whole portfolio?
Yes. Whether you hold one building or dozens, every communal and void supply is tracked together so nothing is missed at renewal.
What does OptiFlow Watch cost?
A flat £49.99 a month. Every switch we recommend carries a saving guaranteed in writing, so the service is built to pay for itself.
Do I have to switch supplier?
No. We only recommend a move when it saves you money. If a supply is already on a fair deal, we tell you and keep watching it.
More from OptiFlow Watch
See what your portfolio could save
Send us a recent communal energy bill and we will show you the number, with any saving guaranteed in writing.