Good, and consistently good. Every school Ofsted has graded across the borough is rated good or better. The local primaries do well in maths. The two local secondaries hold their own at GCSE. Brentford is mostly flats and rentals, but its schools are as dependable as a settled suburb's.
There are four mainstream state primaries in the area, and their Key Stage 2 maths results average about 107. Green Dragon Primary School and Lionel Primary School are the non-church options. St Paul's CofE Primary School and Our Lady and St John's Catholic Primary School complete the four. On the Department for Transport's 2019 model, the nearest primary is about a nine-minute walk from the typical Brentford home. Two of the four have a church in their name, and church schools can set their own admissions rules, so for some families those rules will matter more than the distance.
The two mainstream state secondaries in the area have an average Attainment 8 score of about 58, the measure used for results across a pupil's best eight GCSEs. Gunnersbury Catholic School is one. Brentford School for Girls is the other, and the only one carrying the town's name. On the same 2019 model, the nearest secondary is about a ten-minute walk away. A ten-minute walk to a school with the town's name on it helps nobody with a son, because Brentford School for Girls takes only girls.
In the London Borough of Hounslow, Ofsted has graded 39 schools and all 39 are rated good or outstanding. Eight are outstanding, and none requires improvement or is rated inadequate. A further 25 settings in the borough have no published grade yet. These figures cover the whole borough, so they describe the standard Brentford's schools sit inside without grading any one of them. When nothing in the borough is graded below good, parents end up arguing about which good school to pick.
Hounslow council allocates places under its published admissions rules, and the church schools apply their own criteria on top. Living near one of the schools named here therefore does not guarantee a place, and families should read the admissions criteria for each school they want before choosing where to live. Brentford is mostly two-bed flats, and families who move in for the primary tend to discover the bedroom problem in about the same year they need a secondary.
Schools are one of Brentford's real strengths, backed by a borough where every graded school is good or better. Admissions are the hard part, not quality.