Lawn Treatment Cost
Calculator UK

A full professional lawn treatment programme in the UK covering fertilising, moss control, weed control and soil treatments over 4–8 visits per year costs approximately £200–£500 per year for a medium garden (100–250m²) depending on the provider and region. National companies like TruGreen start from £204/year (TruLite plan) and £384/year (TruPlus plan) for a standard lawn. Kingsbury Lawn Care charges approximately £16.92/month for a medium lawn. GreenThumb pricing is provided on request based on lawn size. Independent local lawn care specialists often offer competitive rates 10–20% below national franchise prices.

Professional lawn scarifying costs in the UK range from £50–£90 for small lawns (under 100m²), £90–£140 for medium lawns (100–250m²), and £140–£250+ for large lawns (250m²+). These prices typically include raking up and removing the extracted thatch. First-time scarifications on neglected lawns with heavy thatch build-up may cost 30–50% more. DIY scarifier machines can be hired for approximately £40–£80 per day or purchased for £80–£300. The RHS recommends scarifying UK lawns once per year in autumn when the grass is still actively growing and has time to recover.

Professional lawn aeration costs between £30–£50 for small gardens, £50–£80 for medium gardens, and £80–£150+ for large gardens. Hollow tine aeration (which physically removes cores of soil) is more expensive than solid tine aeration but produces better results for compacted lawns. DIY hollow tine aerators can be purchased for £15–£45 (hand tool for small areas) or hired as a powered machine for £40–£80/day. Many professional lawn care companies combine aeration with scarifying, overseeding and top dressing in an autumn renovation package, which often offers better value than booking each service separately.

UK lawn experts and the RHS recommend fertilising a typical lawn 3–4 times per year: a high-nitrogen spring feed (March–April) to stimulate growth after winter, a balanced summer feed (May–June), an autumn hardening feed with higher potassium and phosphorus (September), and optionally an iron-based winter treatment (November) which hardens the grass against frost and suppresses moss without promoting soft growth. DIY products for all four applications cost approximately £40–£80 per year for a medium lawn. Professional quarterly fertiliser treatments cost approximately £80–£120 per year for the same lawn size.

A professional lawn treatment service is worth considering if you want consistently excellent results without the time and knowledge investment required for DIY care, particularly for larger or problem lawns. The main advantages are access to professional-grade products (especially restricted-use weedkillers and fungicides), specialist equipment (commercial scarifiers and aerators), and expert diagnosis of problems. DIY lawn care costs approximately 80% less per year than a full professional programme, but requires 30–50 hours per year of your time plus a one-off equipment investment of £350–£700. For most UK households, a hybrid approach works well — professional treatments for scarifying, aeration and overseeding (specialist equipment tasks) combined with DIY fertilising, mowing and moss treatment.

TruGreen UK pricing starts from £17/month (£204/year) for their TruLite plan covering 5 fertiliser treatments, 1 weed control, 1 moss control, and 1 Aqua Boost per year. Their TruPlus plan starts from £32/month (£384/year) and adds mechanical treatments. GreenThumb provides pricing through an online instant quote based on your postcode and lawn size — typical medium lawn programmes start from approximately £180–£350/year depending on plan level. Both are VAT-registered national companies, so 20% VAT is added to these prices. Independent local lawn care specialists typically charge 10–25% less than national franchises for equivalent service levels.

Professional overseeding costs range from £60–£90 for a small lawn (under 100m²) to £90–£160 for a medium lawn and £160–£250+ for a large lawn. These prices typically include the seed supply and application but may not include preparatory scarifying and aeration, which should ideally be done immediately before overseeding for best results. DIY overseeding costs £10–£30 for a good quality seed mix for a medium lawn. Autumn is the best time for UK overseeding (September–October) when soil is warm from summer, moisture levels are rising, and weed competition is reducing.

The most cost-effective UK lawn improvement strategy prioritises: (1) Correct mowing height and frequency (free — using your existing mower), which is the single biggest factor in lawn density and health; (2) Annual fertilising with a quality four-season programme (£40–£80 DIY); (3) DIY hollow tine aeration in autumn using an inexpensive hand tool (£15–£45 once); (4) Overseeding bare patches with matched grass seed (£10–£15 for patches); (5) Iron sulphate solution for moss control (£8–£15 per treatment). These five steps done consistently produce dramatic improvements at a total annual cost of £60–£120 for a medium lawn, without requiring professional help.

The optimal window for UK autumn lawn renovation is late August to mid-October, with September being the sweet spot for most of England and Wales. At this time, soil temperatures are still warm enough for seed germination (above 8–10°C), moisture levels are rising as autumn rain arrives, daytime temperatures are cooler (reducing evaporation), and weed competition is at its annual low. The ideal sequence is: mow short → scarify → aerate (hollow tine) → top dress → overseed → fertilise with autumn feed → water if dry. Allow 6–8 weeks before the first hard frost to ensure new seedlings are established before winter.

Moss treatment is one of the easiest lawn care tasks to do yourself effectively. Ferrous sulphate (iron sulphate) — available as Lawn Sand or liquid formulations — is the standard DIY treatment, costing £8–£20 for enough product to treat a medium lawn. Apply in autumn or spring, wait 2–3 weeks for the moss to blacken and die, then rake it out vigorously. Professional moss treatments use the same active ingredient (iron sulphate) but apply it more evenly using calibrated spreaders. The key insight is that moss is a symptom, not the root problem — compaction, poor drainage, low soil pH, and shade cause moss to thrive. Treating only the moss without addressing these underlying causes means it returns within 6–12 months.

A full renovation of a seriously neglected UK lawn (heavy moss, thin sward, bare patches, compacted soil) costs approximately £300–£600 for a medium garden (100–250m²) professionally done — including clearance mowing, scarifying, hollow tine aeration, top dressing, overseeding and an initial fertiliser treatment. DIY renovation of the same lawn costs approximately £80–£150 in materials (seed, top dressing mix, fertiliser) plus £40–£80 for a hired scarifier. If the lawn is beyond renovation — more than 50% weeds, bare soil, or severely damaged — complete lawn replacement with new turf is often more cost-effective, typically costing £8–£15 per m² professionally laid (including turf supply and soil preparation).

Yes — London and the South East consistently have the highest lawn treatment costs in the UK. Labour rates for professional lawn care in London are typically 25–35% above the national average, reflecting higher living costs, minimum wage compliance and travel costs within the capital. For example, a medium lawn scarification costing £90–£120 in the Midlands typically costs £115–£165 in London. DIY product costs are largely the same across the UK, meaning the proportional saving from doing it yourself is greatest in London and the South East. National franchise companies (TruGreen, GreenThumb) apply postcode-based pricing that reflects these regional differences in their online quotes.