The Builders Merchant Building Index

Scroll right

VALUE EX VAT Index Jan 23 Feb 23 Mar 23 Apr 23 May 23 Jun 23 Jul 23 Aug 23 Sep 23 Oct 23 Nov 23 Dec 23 Jan 24 Feb 24 Mar 24 Apr 24 May 24 Jun 24 Jul 24 Aug 24 Sep 24 Oct 24 Nov 24 Dec 24 Jan 25 Feb 25 Mar 25
Total Builders Merchants 100 104.7 112.7 129.0 113.1 127.7 133.5 125.9 123.6 119.1 121.7 116.3 72.7 102.6 107.4 112.1 117.7 121.2 113.9 127.1 116.8 114.9 123.2 110.9 74.8 100.2 104.6 120.2
Timber & Joinery Products 100 106.8 109.4 127.2 107.6 119.2 123.8 118.4 118.8 114.8 117.6 111.6 69.6 100.1 102.4 105.3 109.1 110.9 104.6 117.7 109.0 108.4 116.4 105.0 69.6 95.6 97.5 110.2
Heavy Building Materials 100 106.0 117.3 132.3 116.4 132.6 139.5 130.5 127.3 122.9 124.9 118.0 71.6 102.0 108.0 112.6 118.0 122.4 115.5 130.2 119.5 117.6 126.3 113.2 74.4 100.8 106.3 122.2
Decorating 100 108.0 110.0 123.9 107.8 119.8 126.3 122.1 122.6 121.2 127.8 127.7 83.7 114.7 116.8 119.5 122.9 124.2 119.3 132.8 122.9 120.8 131.5 118.4 82.0 107.4 109.3 122.9
Tools 100 100.5 105.6 117.8 98.7 106.3 111.7 107.1 107.3 105.8 112.7 112.6 74.1 104.1 107.0 115.6 118.7 116.5 110.2 121.2 111.2 113.8 128.9 116.5 80.4 106.6 109.8 119.9
Workwear & Safetywear 100 125.3 119.9 138.1 102.3 114.1 117.2 111.1 118.3 123.5 147.3 163.4 102.2 148.2 141.9 138.2 131.8 135.5 118.4 141.8 121.0 148.3 162.2 149.7 105.2 145.4 133.3 135.2
Ironmongery 100 102.9 102.7 118.2 99.8 110.4 119.0 112.1 111.7 109.1 114.6 112.5 74.0 105.5 104.4 102.8 108.2 108.2 101.3 116.7 106.7 106.4 116.2 104.4 75.0 103.9 101.0 111.9
Landscaping 100 80.7 103.4 129.2 135.2 160.2 171.3 144.0 134.9 121.4 113.6 97.5 56.3 85.7 100.2 120.8 139.5 157.1 143.2 148.0 134.3 116.9 113.5 97.1 65.3 82.8 95.3 136.8
Plumbing, Heating & Electrical 100 120.1 118.6 130.6 100.6 108.5 112.4 109.8 110.0 112.2 125.2 130.1 91.6 122.5 119.9 115.5 113.8 107.2 98.9 114.3 102.8 112.7 130.0 120.9 87.9 118.8 118.4 121.5
Renewables & Water Saving 100 166.1 161.1 173.2 164.8 169.6 155.0 178.8 164.1 154.9 148.9 145.2 99.6 118.9 127.4 121.5 130.8 106.8 112.6 128.0 113.5 111.5 148.6 123.2 86.7 116.1 118.9 137.4
Kitchens & Bathrooms 100 109.9 113.7 128.1 106.8 116.2 123.5 125.1 124.0 123.1 123.4 132.5 82.2 113.4 117.6 116.1 119.1 118.5 112.1 121.1 110.8 117.5 124.4 121.2 81.1 108.7 112.8 116.4
Miscellaneous 100 101.4 94.3 107.5 88.1 101.4 102.0 99.7 104.2 99.9 111.7 111.3 76.4 105.6 104.0 100.7 101.4 101.5 96.3 112.4 99.7 96.6 112.0 102.8 76.0 105.6 106.3 110.0
Services 100 98.5 101.3 117.3 107.2 120.1 110.1 122.5 119.0 109.2 118.3 113.2 82.7 98.6 105.1 112.4 119.6 118.9 112.6 127.6 122.0 113.9 125.4 112.6 90.0 102.1 108.3 122.4

Source: NiQ GfK's Builders Merchants Total Category Report - March 2023 to March 2025

March Monthly Overview

The latest Builders Merchant Building Index (BMBI) report reveals builders’ merchants’ value sales for Q1 2025 were up +0.9% compared to Q1 2024. There was a moderate increase in volume sales (+3.9%), while prices came down -2.9%. There was no difference in trading days.

Eight of the twelve categories sold more in Q1 2025 compared to the same quarter a year before, with Services performing best (+5.3%). Heavy Building Materials (+2.0%) outperformed Total Merchants, while the other largest category – Timber & Joinery Products slipped -1.4% year-on-year. Workwear & Safetywear (-3.3%) was the weakest category.

Quarter-on-quarter builders’ merchants’ value sales for Q1 2025 were +5.2% higher than the previous three-month period (October to December 2024). Volume sales climbed +5.8%, while there was a slight drop in prices (-0.5%). With two more trading days in the most recent period, like-for-like value sales were +1.9% higher than the previous quarter. Eleven of the twelve categories sold more, with seasonal category Landscaping (+14.1%) growing the most, followed by Miscellaneous (+10.7%). Again, Workwear & Safetywear (-0.8%) was the weakest category.

Quarter 1 total value sales were given a boost by March sales, which were up +7.2% year-on-year. There was a double digit increase in volume sales (+11.2%), while prices came down -3.6%. With one extra trading day in the most recent period, like-for-like sales were +2.1% up. Eleven of the twelve categories sold more with Landscaping (+13.2%) ahead, closely followed by Renewables & Water Saving (+13.1%). Miscellaneous (+9.2%), Services (+9.0%), Ironmongery (+8.9%) and Heavy Building Materials (+8.5%) also had significant value sales growth in March 2025 compared to the previous year.

Month-on-month, March value sales were +14.9% higher than February. Volumes increased +17.0% and prices fell -1.8%, while all categories sold more. With one more trading day in March, like-for-like sales were up +9.5%.

Mike Rigby, MD of MRA Research who produce this report, said: “To say it’s been a tempestuous start to the year would be a considerable understatement, as the world struggles to adapt to the rapid shifting of its foundations triggered by Trump’s volcanic tariffs onslaught. Relief that the UK has agreed a deal with the US has been short-lived as economists agree there’s little substance in it to drive growth. Other world leaders who have yet to sign a deal are contributing to the uncertainty and churn. For now, and the next five years at least, it’s goodbye Davos and know-where-you-stand treaties, and hello to the Godfather and an-offer-you-can’t-refuse.

“With such monumental geoeconomic headwinds, how will UK construction be affected? Even if the tariff tsunami is resolved quickly, a certain amount of disruption to supply chains and increased production costs is baked in. Given the cumulative impacts on uncertainty, I imagine consumer confidence and its effect on RMI and property will take longer to recover.

“Given the chaotic backdrop, merchant’s year-on-year March sales, and year-on-year Q1 sales are more robust than we could have expected. Admittedly, March 2024 and Q1 2024 were nothing to shout about, but month-on-month and quarter-on-quarter sales are also positive.

“The Construction Products Association reported a mixed start to the year with 15% of heavy side manufacturers reporting quarter-on-quarter decreases for Q1, while 55% light side manufacturers said sales increased – the strongest result since Q3 2019. Despite the disparity in fortunes, manufacturers remain optimistic about the year ahead.

“Animal spirits are resilient and powerful, but confidence has taken a battering. GfK’s long-running Consumer Confidence Index decreased by four points to -23 in April. All measures were down compared to March, and expectations for the general economic situation over the next 12 months fell to -37, sixteen points worse than April 2024. However, the Major Purchase Index component of the Consumer Confidence Index which correlates with larger domestic purchases and RMI projects is down two points at -19, six points better than April last year, so not all bad! Wages rising faster than prices, and more interest rate cuts to come will also provide relief for consumers.

“In practice, whether consumers postpone big purchases in 2025 or not will depend on a mix of domestic and global factors. The world feels more fragile and uncertain now than at any time since the Berlin Wall came down in 1989.”

Set up and run by MRA Research, the BMBI – a brand of the Builders Merchants Federation – is a monthly index of builders’ merchant sales, and the most reliable, up-to-date proxy for Repair, Maintenance, and Improvement (RMI) activity in the UK. The index is based on actual sales from GfK’s Builders’ Merchant Point of Sale Tracking Data, which captures value sales out to builders from generalist builders’ merchants, accounting for 88% of total sales from builders’ merchants throughout Great Britain. An in-depth review, which includes commentary by sector experts, is produced each quarter.

Click here to view or download report

Previous Reports