Plumbing and Heating in Blackwood
ProTrade South Wales provides reliable plumbing and heating services near you and across Blackwood and the Sirhowy Valley. We’re a family-run business with deep roots in the local community, handling everything from those annoying emergency leaks to full central heating upgrades. Our Gas Safe registered engineers focus on keeping your home warm and safe, combining industry-standard materials with a bit of local common sense.
We know the houses around here inside out. Whether it’s a traditional terrace in Pontllanfraith or a newer build in Oakdale, we use WRAS-approved fittings to make sure every job meets UK water regulations. From a faulty stopcock to a full system power flush, we provide Blackwood residents with fixes that actually last.

Reliable Boiler Installation and Care
A good heating system isn’t a luxury when you’re facing a damp Welsh winter. We specialise in installing A-rated condensing boilers from brands like Worcester Bosch. We’ll start with a proper site survey to figure out if a combi, system, or heat-only boiler is the best fit for your home’s pipework and how much hot water you actually use.
Every installation is done by a Gas Safe technician, safely commissioned, and registered with local building control. To keep your new boiler running smoothly, we usually recommend magnetic filters and high-quality inhibitors. This stops the buildup of "sludge"—a common headache for homeowners across Caerphilly County Borough.
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Who Needs a Professional Plumber?
For landlords and homeowners in Blackwood, professional help is often a legal necessity or the only way to fix a botched DIY job. If you’ve got a rental near the High Street or the Miners’ Institute, you need a valid Landlord Gas Safety Record (CP12). We carry out these essential checks on everything from boilers to gas hobs.
If you’re living in an older spot in Fleur-de-Lis, you might be dealing with low water pressure or noisy "water hammer" in the pipes. This usually comes down to aging copper or lead infrastructure. We can modernise your setup, often suggesting unvented hot water cylinders to give you a decent, high-pressure shower.
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Solving Common Local Problems
The geology and weather in the Valleys can be tough on pipes. Limescale is a frequent issue here, furring up heat exchangers and shortening the life of your appliances. We can install scale reducers or water softeners to protect your kit and lower your energy bills.
In the winter, frozen condensate pipes are one of the biggest reasons boilers lock out. We make sure external pipework is properly lagged to save you an emergency call-out during a cold snap. Whether it’s a blocked kitchen sink or a dead immersion heater, we’re used to the specific wear and tear seen in Blackwood’s housing stock.
Our Main Services
Emergency Leak Detection and Repair If a pipe bursts at 2 AM, you need someone local who can get there fast. We use non-invasive tools to find drips hidden behind walls or under floors, stopping damp before it starts. Once we find it, we use quality solder or compression fittings for a permanent fix.
Professional Power Flushing If your radiators have cold spots at the bottom or your boiler is "kettling" (making a noise like a boiling kettle), you’ve likely got sludge in the system. Our power flushing clears the whole circuit, restoring heat and protecting your pump from packing in early.
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Kitchen and Bathroom First-Fix Renovating in Pengam or Cefn Fforest?
We handle the "first-fix" plumbing—all the pipework hidden behind the scenes for new baths and sinks. We make sure everything is pressure-tested and has the right fall before you lay down expensive tiling.
Gas Safety and Landlord Certificates Safety is the priority. We check flues, ventilation, and safety devices on all gas appliances. For landlords, this is vital for keeping tenants safe and staying on the right side of Rent Smart Wales rules.
Outdoor Plumbing Plenty of homes in the Sirhowy Valley have great gardens that need a water supply. We install frost-proof outdoor taps with double-check valves to prevent any backflow into your drinking water.
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Local Areas We Cover
We’re proud to work throughout the NP12 area, including:
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Suburbs: Pontllanfraith, Oakdale, Fleur-de-Lis, Cefn Fforest, and Pengam.
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Technical Know-how: We’re familiar with the high-pressure mains common in the Valleys
and install pressure-reducing valves (PRVs) where needed to protect your appliances.
Frequently Asked Questions
How do I check if my plumber is Gas Safe?
Always ask to see their ID card. The back of the card lists exactly what they’re qualified to work on (boilers, fires, etc.). You can also check our details on the official Gas Safe Register using our registration number.
Why are my radiators cold at the top?
Usually, it’s just trapped air. You can try "bleeding" the radiator with a key, but if it keeps happening, it might be a sign of a slow leak or an issue with your expansion vessel that needs a look.
Do you use WRAS-approved parts?
Yes, always. WRAS-approved materials where possible to ensure your water stays uncontaminated and your plumbing stays compliant with UK law.
Plumbing Request
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