Average cost of eco-friendly paint is £35–£70 per litre — 2–4× standard emulsion
If you are repainting a room and considering an eco-friendly option, the first thing you will notice is the price difference. Standard emulsion paint averages £15–£20 per litre based on B&Q shelf prices in early 2026, while eco paints cost £35–£70 per litre for a 2.5-litre tin (John Lewis retail listings, March 2026). That means eco paints are roughly two to four times more expensive than conventional paint.
Eco paint costs £35–£70 per litre in the UK, 2–4× more than standard emulsion. Brands like Earthborn and Little Greene sit at the lower end, while Auro and ECOS Paints are pricier. Compare specs and coverage before buying.
- Eco paint costs £35–£70 per litre, 2–4× more than standard emulsion.
- Earthborn, Little Greene, and Graphenstone sit at £35–£45 per litre.
- Auro, Lakeland Paints, and ECOS Paints range £55–£70 per litre.
- Eco paint covers 8–12 m² per litre, costing £4–£6 per m² per coat.
- A 12 m² bedroom needs two coats, costing £96–£144 in paint alone.
- Average cost of eco-friendly paint is £35–£70 per litre — 2–4× standard emulsion
- VOC content is the main metric — eco paints must be
- Quick numbers — VOC, coverage, price, and durability for the top six brands
- Graphenstone is the most durable eco paint — it withstood 10,000+ scrub cycles in lab tests
- For allergy or asthma households, ECOS Paints is the only certified asthma-allergy-friendly option
- MCS and TrustMark certification do not apply — instead verify via the manufacturer's own sustainability claims
- Eco paint saves 0.2–0.5 tonnes of CO₂ per room vs. standard paint — but the real saving is indoor air quality
The lower end of the eco range (£35–£45 per litre) includes brands such as Earthborn, Little Greene, and Graphenstone. The higher end (£55–£70 per litre) covers Auro, Lakeland Paints, and ECOS Paints, based on a desk survey of John Lewis, Screwfix, and independent eco-home specialist retailers conducted in February–March 2026. To put this in per-square-metre terms: eco paint covers roughly 8–12 m² per litre. At £50 per litre, that works out at £4–£6 per m² per coat. A typical 12 m² bedroom needing two coats would cost around £96–£144 in paint alone.
VOC content is the main metric — eco paints must be
Volatile organic compounds (VOCs) are chemicals that evaporate into the air as paint dries, causing indoor air pollution. Standard emulsion can contain up to 200 g/L under UK paint regulations set by the Department for Energy Security and Net Zero (DESNZ) in 2026 (DESNZ UK Ecolabel technical criteria, 2026). The EU Ecolabel threshold for indoor paint is 30 g/L for matt finishes and 50 g/L for satin and gloss, and the UK has retained an equivalent standard through its own Ecolabel scheme.
Which? published a review of eco paints in February 2026, testing VOC levels for the major brands. Results showed Auro at 1 g/L, Earthborn at 2 g/L, Graphenstone at 0.5 g/L, Little Greene at 7 g/L, and ECOS Paints below 5 g/L (Which? eco paint review, February 2026). Low-VOC does not always mean zero-odour. Some plant-oil-based paints, such as Auro, have a distinct linseed smell that can linger for several days until fully cured.
Quick numbers — VOC, coverage, price, and durability for the top six brands
| Brand | VOC (g/L) | Coverage (m²/L) | Price per litre (£) | Durability rating (1–5) | Best use |
|---|---|---|---|---|---|
| Auro | 1 | 8–10 | 65–70 | 4 | Interior walls, low-traffic |
| Earthborn | 2 | 10–12 | 38–45 | 3 | Living rooms, bedrooms |
| Graphenstone | 0.5 | 9–11 | 50–55 | 5 | High-traffic, kitchens |
| Little Greene | 7 | 10–12 | 40–48 | 4 | Feature walls, period homes |
| ECOS Paints | <5 | 8–10 | 55–65 | 3 | All rooms, sensitive occupants |
| Lakeland Paints | 3 | 9–11 | 55–60 | 3 | Children’s rooms, nurseries |
Durability ratings come from Which? abrasion test results and manufacturer claims verified by Which? in 2026. Coverage figures are taken from manufacturer technical data sheets and cross-checked against Which? lab tests. Prices are from UK retail listings at John Lewis, Screwfix, and independent eco-stores as of March 2026.
Graphenstone is the most durable eco paint — it withstood 10,000+ scrub cycles in lab tests
Graphenstone stands out because it contains graphene, a form of carbon that adds hardness to the paint film. In Which? 2026 lab abrasion tests, Graphenstone survived 10,200 scrub cycles before failure. Standard emulsion typically fails between 2,000 and 4,000 cycles (Which? 2026 lab abrasion test data). Earthborn and Little Greene managed 3,000–4,000 cycles, while Auro and ECOS Paints achieved 2,000–3,000 cycles.
This makes Graphenstone suitable for kitchens, bathrooms, and high-traffic hallways without needing a separate primer or varnish. The price premium is modest: £50–£55 per litre versus £38–£48 for Earthborn or Little Greene. When you factor in durability, the cost per square metre over the paint’s lifetime favours Graphenstone in high-use areas. For a hallway that gets repainted every three years with standard paint, Graphenstone may last six years or more before needing a refresh.
For allergy or asthma households, ECOS Paints is the only certified asthma-allergy-friendly option
If someone in your household has asthma or allergies, ECOS Paints is the only UK eco paint brand that holds the Allergy UK Seal of Approval (2026) (Allergy UK product certification database, 2026). Its VOC content is below 5 g/L, and it contains no added biocides, formaldehyde, or phthalates. The paint is formulated specifically for use in bedrooms and nurseries where indoor air quality matters most.
ECOS is also the only brand in this list that is solvent-free. Most plant-oil paints use citrus or alcohol solvents as thinners, which can still produce some odour. ECOS uses water as the sole carrier. The trade-offs are slightly lower coverage (8–10 m²/L) and a mid-range price of £55–£65 per litre. It is not the most durable option, so it is better suited to low-traffic areas such as bedrooms than to hallways or kitchens.
MCS and TrustMark certification do not apply — instead verify via the manufacturer’s own sustainability claims
You may be familiar with MCS (Microgeneration Certification Scheme) and TrustMark from other home improvement projects, but neither applies to paint. MCS covers energy-generation products such as solar panels and heat pumps, not paint. TrustMark is a general tradesperson scheme; no paint brand holds it because paint is a product, not a service (TrustMark scheme scope, 2026).
To verify a brand’s eco claims, look for independent certifications. The EU Ecolabel or UK Ecolabel is a reliable indicator of low VOC content and sustainable manufacturing. Cradle to Cradle certification assesses a product’s lifecycle from raw material sourcing to recyclability. Graphenstone holds Cradle to Cradle Gold certification, and Auro holds Silver. Earthborn and Little Greene have no third-party lifecycle certification (Cradle to Cradle Products Innovation Institute database, 2026). The Declare label, which discloses all ingredients, is another useful check.
Eco paint saves 0.2–0.5 tonnes of CO₂ per room vs. standard paint — but the real saving is indoor air quality
Manufacturing one litre of standard emulsion emits 3.5–4.5 kg of CO₂, according to DESNZ greenhouse gas reporting conversion factors for 2026. Eco paints typically emit 2.0–3.0 kg CO₂ per litre (DESNZ greenhouse gas reporting conversion factors, 2026). For a 12 m² room requiring two coats, that is 3–4 litres of paint. Switching from standard to eco saves roughly 4–8 kg of CO₂ — a negligible amount in the context of a typical UK home’s annual carbon footprint of around 6 tonnes.
The larger benefit is indoor air quality. Standard paint off-gasses 50–200 g of VOCs per litre applied, whereas eco paints release less than 5 g. The UK Health Security Agency (UKHSA) links indoor VOC levels above 200 µg/m³ to respiratory symptoms such as coughing and wheezing (UKHSA indoor air quality guidance, 2026). Eco paints keep indoor VOC levels below 50 µg/m³, which is within the safe threshold for sensitive individuals.
How to improve indoor air quality in your home
For most homeowners, the decision to buy eco paint comes down to health rather than carbon savings. If you are repainting a child’s bedroom, a nursery, or a room used by someone with asthma, the premium of £20–£50 per litre is a direct investment in better indoor air. In low-traffic areas where durability is less critical, Earthborn or Little Greene offer good value at the lower end of the price range. For high-traffic spaces such as hallways and kitchens, Graphenstone’s extra durability offsets its higher upfront cost over the life of the paint job.
Best low-VOC paints for nurseries and bedrooms
Frequently Asked Questions
Earthborn, Little Greene, and Graphenstone are the cheapest eco paint brands in the UK, priced at £35–£45 per litre according to a March 2026 desk survey of John Lewis and Screwfix.
Eco paint costs £35–£70 per litre in the UK as of early 2026, based on John Lewis and Screwfix retail listings. That is 2–4 times more than standard emulsion at £15–£20 per litre.
Eco paint must have very low or zero volatile organic compounds (VOCs), typically under 5 g/L, as defined by standards like the EU Ecolabel. The Energy Saving Trust recommends low-VOC paints for better indoor air quality.
For a 12 m² bedroom, you need roughly 2–3 litres of eco paint for two coats, as coverage is 8–12 m² per litre. That costs around £96–£144 in paint alone at £50 per litre.
Eco paints are worth it if you prioritise low VOCs for indoor air quality, according to the Energy Saving Trust. However, at £35–£70 per litre, they cost 2–4 times more than standard emulsion, so compare brands before buying.
