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Methodology and sources

How we estimate flooring installation cost

Every estimate combines national unit costs with a local labour adjustment for your region. This page shows the formula, source inputs, limitations, and review notes behind the calculator.

Open calculatorEditorial policy
6
line items
11
regions
6
sources

Methodology summary

Transparent formula

Quantities are driven by the floor area, the material, and whether the old floor is lifted or the subfloor needs levelling; the project band is ±25%.

Regional labour only

Labour multipliers affect the labour share of each line item; materials stay nationally priced.

Clear limitations

These are planning estimates, not live contractor quotes or guarantees.

The formula

For each line item we multiply a quantity by a national unit cost, then apply a quality-grade factor. A regional labour multiplier is applied to the labour portion only; materials are priced nationally. We show the itemised result as a ±25% range.

National unit costs

Line itemNational unit costSource
Existing floor removal£10.00 / m²mybuilder.com (source for Existing floor removal)
Flooring material£23.00 / m²checkatrade.com (source for Flooring material)
Installation labour£17.00 / m²checkatrade.com (source for Installation labour)
Underlayment & moisture barrier£3.70 / m²mybuilder.com (source for Underlayment & moisture barrier)
Subfloor leveling / repair£12.00 / m²myjobquote.co.uk (source for Subfloor leveling / repair)
Transitions & trim£13.00 / m²mybuilder.com (source for Transitions & trim)

Regional labour multipliers

Each region's labour multiplier is its mean construction-trades wage relative to the GB mean, from ONS ASHE Table 15 (SOC 531, Construction and Building Trades; 2024 revised edition) — a broader occupation than a floor-fitter-specific series because ONS suppresses narrow-occupation regional wage data, the same proxy basis used by the GB window, roof and garage-door calculators. Multipliers are bounded to a sane range and applied to the labour share of each line item, so materials stay nationally priced while labour tracks local wages.

Data vintage and limitations

Compiled June 2026 from public cost aggregators and government wage data. These are derived estimates, not live contractor quotes. Local prices vary with project complexity, access, and material availability; always confirm with a licensed contractor before budgeting.

Tax and data notes

VAT
The calculator applies the configured standard UK VAT rate of 20% to its renovation estimate and shows the VAT-inclusive total. Some projects or properties can qualify for different treatment, so confirm the rate and any exemptions on each contractor quote.
How firm these costs are
The national renovation model is assembled from the public cost guides cited for its individual inputs, then calibrated against a cited market range. Individual line prices are planning allocations rather than live quotes; compare the result with itemised quotes from qualified contractors before budgeting.

Sources