Summary

Fence painting is one of the simplest jobs to over-promise and under-deliver. Customers see a £15 tin of fence paint at B&Q and expect a £80 day's work. Real costs include preparation (which is the bulk of the labour), waste management of stripped material, the time penalty for working around plants and outdoor furniture, and the realistic productivity limit of a brush-applied two-coat finish on weathered timber.

The product specification matters more than customers think. Modern water-based fence treatments are biocidal preservatives (kill mould and algae) and decorative finishes simultaneously — these are not paint. Traditional fence "paint" (typically alkyd or acrylic) is decorative but offers limited biocidal protection. Cuprinol Garden Shades, Ronseal Total Performance, Sadolin and similar premium products give 3–5 year protection vs 1–2 years for budget products.

This guide covers labour rates by application method, materials by product class, surface prep scope, productivity, common site overruns and worked pricing examples for typical UK gardens. For broader exterior work see exterior painting pricing guide and exterior masonry.

Key Facts

Quick Reference Table

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Scenario Linear m Time Labour Materials Full Price
20m, one side, brush, single coat, light prep 20 1 day £180–£260 £30–£60 £210–£320
20m, one side, two coats, full prep 20 1.5–2 days £300–£450 £50–£90 £350–£540
30m, one side, spray, two coats 30 1–1.5 days £200–£320 £60–£120 £260–£440
30m, both sides (neighbour access), brush two coats 30 3–4 days £550–£900 £100–£180 £650–£1,080
50m perimeter (corner property), spray, two coats 50 2–2.5 days £350–£550 £100–£180 £450–£730
30m fence + 1 shed + 1 pergola, brush, two coats 30 + extras 3–4 days £580–£950 £120–£220 £700–£1,170
Decorative trellis with mature climbing plants per metre +30% premium per premium

Detailed Guidance

Surface Preparation — The Hidden Bulk of the Labour

Customers see the application as "the job" — actual application is 30–40% of the labour. The rest is surface prep. On a typical 30m back-garden fence:

Total prep: 4–7 hours for a typical garden. Application itself: 4–8 hours. Total: 8–15 hours.

The prep estimate doubles on south-facing fences (more biological growth in shade-deprived areas? No, actually north-facing fences have more algae — south fences degrade through UV), on fences previously stained with multiple incompatible products, and on fences where the climbing plants are mature.

Spray vs Brush — Productivity and Quality

Spray application:

Brush application:

The decision in practice:

Product Class Selection

Three product categories dominate the UK market:

Water-based stains (the dominant choice):

Solvent-based stains:

Fence paints (opaque):

Creosote and creosote substitutes:

Always quote the specific product (brand and exact name) so the customer can verify the material spec.

Coverage Calculation Per Garden Side

A 30m close-board fence at 1.8m high = 30 × 1.8 = 54 m² per side.

For both sides (assumes neighbour access): double to ~£160 materials.

Calculate materials per side BEFORE quoting. Customers assume "one tin will do it" because the label says "covers up to 25 m²." On weathered timber, that drops to 12–15 m² per tin.

Weather Window Management

Manufacturer requirements:

In the UK this means:

Always check forecast before booking. Customers who insist on "any sunny day" without consulting the forecast are setting up a failed coat. Add to your terms: "Application is subject to weather-suitable conditions per the manufacturer's specification."

Neighbour Access — The Reality

Most garden fences have two sides, both of which need treatment for full protection. In practice:

Customer-side detail to put in the quote:

"This quote covers the customer's side of the fence only. The reverse face is owned and accessible from the neighbouring property and is not included. Permission from the neighbour is required if both-side treatment is needed; please confirm before the scheduled work date."

Common Site Overruns

Frequently Asked Questions

Should I jet-wash the fence before painting?

Yes, in most cases. A garden hose with a brush attachment or a low-pressure jet wash (under 50 bar) removes loose surface, dead algae and dust. Allow 48 hours to fully dry. Avoid very high-pressure jet washing — it tears the timber surface, leaves micro-splinters that look fine when wet but ruin the finish coat. The labour cost of jet washing 30m of fence: 30–60 minutes plus £15–£30 hire if not owned.

Can I paint a fence in winter?

Below 10°C the manufacturer specification is breached. The paint may apply but it won't bond properly. The result is premature peeling, visible by spring. Quote winter painting work for next April onward; offer interior work meanwhile if available.

How long should a fence treatment last?

Manufacturer claims range from 3–5 years (water-based premium) to 1–2 years (budget). The actual lifespan depends on:

For sales conversations, set expectations: "3–5 year recoat interval with proper prep and two coats; budget fence paint on poor prep may need recoating in 12–18 months."

What if the customer asks me to paint over creosote?

Don't, with water-based products. Creosote (and creosote-substitute) is solvent-based and oily; water-based paint will not adhere. You can apply solvent-based stain over solvent-based creosote substitute IF the substrate is completely cured (typically 6 weeks+). If unsure, do a 100mm test patch and check adhesion at 24 hours and 7 days.

Is there a way to spray without overspray onto plants?

A windless dry morning (typically before 10am in summer) with a low-pressure airless sprayer and a cardboard mask backing where you spray gives 95% control of overspray. The remaining 5% is unavoidable — set expectation with customer. Cover plants with breathable garden fleece (not impermeable plastic) on hot days, max 24 hours.

Regulations & Standards