Dog urine burns grass because of its concentrated nitrogen content, leaving a dead brown circle at the centre of each patch, often ringed by a darker green edge where diluted nitrogen has acted as a mild feed rather than a burn. Female dogs cause more visible damage than males because they squat in one spot rather than marking multiple smaller areas.
The most effective response is immediate dilution with water, which stops most damage before it sets in, combined with overseeding for patches that have already died back.
ELawnCare repairs existing urine damage through overseeding as part of the renewal package at £200 per 100m² across Cambridge.
Written by Evaldas, owner of ELawnCare. Last reviewed .
Three-step hand restoration: scarification with a rake, hollow-tine aeration, and premium overseed. Add topdressing if you supply topsoil.
Best in March–April or September–October · ≤50m² min £150 · >300m² in-person quote
Striped, healthy lawns with squared edges. From courtyard plots to country gardens.
+50% surcharge for overgrown first cuts
Watering the spot thoroughly within a few minutes of the dog going dilutes the nitrogen before it concentrates enough to burn the grass. This is the single most effective prevention and works for the vast majority of new patches if done consistently.
Training a dog to use one designated area, often gravel or bark rather than lawn, removes the problem from the rest of the garden entirely, though this takes time and is not realistic for every household.
Dead centres need raking out to remove the burnt grass before reseeding, since new seed will not establish over dead thatch. A light application of gypsum can help neutralise the affected soil before overseeding, though this is not always necessary if the patch is caught early.
Overseeding the raked area and keeping it damp for two to three weeks while the new grass establishes usually closes the gap within a month during the growing season.
Water the affected area thoroughly and promptly to dilute the nitrogen for new patches. For existing dead spots, rake out the burnt grass, overseed, and keep the area damp for two to three weeks while new grass establishes.
Not permanently if treated. The roots in a urine-burnt patch are usually still alive at the edges, and overseeding the dead centre typically closes the gap within a month during the growing season. Repeated urination on the exact same spot causes more lasting damage.
Dietary supplements marketed to reduce nitrogen concentration in urine have mixed evidence. Consistent watering after the dog goes is the most reliably effective method, alongside training the dog to use a designated non-lawn area where possible.
Yes. Overseeding and topdressing repair existing urine damage, and where patches are widespread, the full renewal package at £200 per 100m² addresses the lawn's overall condition at the same time.
£2M public liability
CB1 to CB25 free callout
Owner handles every visit
Or book a free in-person visit for fencing and larger jobs.
