For decades, copper has been the default benchmark for British plumbing. We all know how it behaves, how to clean it, and how to sweat a neat joint. But as raw material markets shift and project schedules tighten, heating engineers across the UK are looking critically at their balance sheets. More and more installers are swapping out their traditional metal tubes and stocking up on MLCP and fittings from our online store to keep their pricing competitive.
If you only compare the invoice cost of a 3-metre length of rigid copper to a 3-metre straight length of Multi-Layer Composite Pipe (MLCP), you might assume copper wins the affordability battle. However, calculating the true profitability of a heating system requires looking past raw material metrics.
To determine the most cost-effective solution, let’s analyze a real-world financial breakdown comparing traditional copper runs to modern MLCP installations.
The Raw Materials: Face-Value Costs
When evaluating base material costs, the initial numbers can be deceiving. Let’s look at typical trade pricing for a standard residential or small commercial layout:
Copper Pipework: Due to global market volatility, a standard 15mm copper tube averages roughly £3.50 per metre. Step up to 22mm for central heating flow and returns, and you are looking at £5.50 to £7.00 per metre.
MLCP Coils: Sourcing premium MLCP and fittings in bulk coils significantly lowers the raw cost. A high-quality 16mm multi-layer coil typically averages between £1.50 and £2.50 per metre, with 20mm equivalents tracking well below copper alternatives.
The Catch: While the raw tube is cheaper per metre, MLCP press fittings (tees, changers, and elbows) are highly engineered components that generally cost more apiece than standard solder fittings. If your pipework layout requires dozens of tight connections, the material cost gap can narrow quickly.
However, looking strictly at component invoices ignores the single biggest factor in your business overheads: labor hours.
The Stopwatch Factor: Where MLCP Wins the Bill
As a heating engineer, your most valuable asset isn’t the stock in your van; it’s your time. The average plumber or heating installer in the UK bills between £40 and £60 per hour. This is exactly where MLCP shifts from a competitive alternative to an absolute goldmine.
Because MLCP features a flexible aluminium core, it can be unrolled from a coil and bent around corners by hand or with a bending spring.
Consider how this structural flexibility impacts a typical radiator circuit install:
| Installation Step | Traditional Copper Solder | Modern MLCP Press Fit |
| Bending Around Obstacles | Requires manual pipe-bending tools or cutting and adding a 90-degree elbow fitting. | Swept smoothly around joists and corners by hand in seconds. |
| Joint Count | An average domestic install can require up to 40+ individual soldered elbows and couplings. | Up to 60% fewer physical fittings required because the pipe forms its own bends. |
| Connection Speed | Measure, cut, deburr, clean, flux, heat with a torch, wipe, and inspect. (~3–5 mins per joint). | Cut, ream, push the fitting home, and press with an electric gun. (Under 5 seconds per joint). |
The Labor Math: On a full central heating installation or a multi-zone underfloor heating project, switching to an MLCP press system reduces total labor installation time by 40% to 60%. Saving 12 hours of on-site labor across a domestic project instantly translates to roughly £500 to £700 in saved business expenses—far outweighing any difference in fitting costs.
Eliminating Sacrificial Site Overheads
Beyond basic material and labor costs, relying on copper brings several hidden expenses that cut directly into your profit margins:
Hot Works Permits & Insurances: Operating a blowtorch on commercial sites requires safety permits, formal risk assessments, and an unproductive one-hour "fire watch" period before you can go home. MLCP press tools use cold mechanical joints, allowing you to walk off site the moment the last press click finishes.
Material Scrappage and Theft: Offcuts of copper tube are treated like currency by site thieves. Leaving copper in an un-secure van overnight is a massive liability. MLCP holds zero scrap metal value, rendering it useless to thieves and lowering your stock loss risks.
Protect Your Margins with Serviced Tools from PressIt
To consistently unlock massive labor savings on your MLCP installations, you need to ensure your physical press tools are performing at factory specifications. A mismatched jaw profile or a hydraulic pressure drop will lead to under-crimped fittings, resulting in costly, profit-draining leak repairs down the line.
At PressIt, we support professional installers by stocking everything required to scale up production. Our digital store is fully provisioned with premium MLCP and fittings alongside the highest tier of Press Fit Press Tools for plumbing. We supply advanced pressing tools, calibrated jaws, and electric guns from industry-leading manufacturers including Novopress, REMS, and Rothenberger.
Crucially, we ensure your tools remain a reliable business asset. PressIt is an authorized warranty and 5-star service agent for major plumbing press tool brands like Novopress and REMS. Our expert technicians handle high-accuracy digital calibrations, diagnostic testing, and rapid repairs for all makes and models of pipe tools across the UK and Ireland.
By upgrading to an MLCP workflow and partnering with PressIt for your ongoing tool maintenance, you can complete jobs faster, trim down project overheads, and take home more profit from every single quote. Explore our range or book your tools in for a precision service today.