07956 994429 020 8244 0912 INFO@DHPLUMBING.CO.UK GAS SAFE REGISTERED#180521 AboutServices Service Areas Our WorkReviewsContact 07956 994429020 8244 0912 Request EstimateQuote - Home - Service Areas - Blackheath Gas Safe #1805214.9★ · 159 Google reviewsSE3 · SE13 # Plumbing, Gas & Heating Engineersin Blackheath Careful work in period homes Blackheath's Georgian and Victorian houses do not tolerate rushed work. Boiler swaps, bathroom fits and central-heating upgrades in SE3 need engineers who understand original pipework, protected plaster and unvented systems. DHP London has been doing exactly that from our Plumstead base for three decades. Request a free estimate Call 07956 994429 Call 020 8244 0912 Free written estimate for any Blackheath job. £80 minimum labour if you go ahead. Clean, dust-sheeted work. G3 Qualified on unvented cylinders 30+ yrs Working period properties in SE3 £5m Public liability insurance Local relevance ## Why Blackheath customers keep calling us back. Blackheath is one of the most architecturally sensitive corners of our patch. The Cator Estate, the Paragon, the villas around the Heath and the terraces off Tranquil Vale all deserve a plumber who thinks about the finish, not just the fitting. We regularly install high-output system boilers and unvented cylinders in larger Blackheath homes, refurbish bathrooms without wrecking cornicing, and take on the sort of full-house heating upgrades that a rushed jobber would make a mess of. About 2.5 miles from our Plumstead base · approx 10–15 minutes on a normal traffic day. Neighbourhoods we cover Blackheath VillageThe Cator EstateThe ParagonBlackheath ValeWestcombe ParkKidbrooke ParkTranquil Vale We serve BlackheathWe cover Blackheath village SE3, Blackheath Vale, the Cator Estate, Westcombe Park and down into Lewisham-side SE13 on the Heath edge. It is a short run from our Plumstead yard, so we can hold a proper time window rather than a vague 'sometime today'. Response timesBooked jobs in SE3 are normally as soon as we can schedule you in. Emergencies inside our 8am–9pm office hours are dispatched as soon as we can. Property types we knowThe typical Blackheath brief is a period property: Georgian townhouse, Victorian villa, 1930s semi off Kidbrooke Park Road, or a larger family house on the Cator Estate, with a system boiler feeding an unvented cylinder and multiple bathrooms. Common Blackheath jobsWe are asked most often for full boiler and cylinder replacements, complete bathroom refurbishments in period rooms, and heating upgrades where an old open-vented system needs to become a sealed, pressurised system feeding a large house properly. Services in Blackheath ## What we get called out for in Blackheath. The jobs below make up the bulk of our week inside SE3, SE13. Every one is priced in writing, Gas Safe compliant. ### Boiler Installation A quiet, efficient, A-rated boiler installed by a Gas Safe engineer with over 30 years on South East London homes, lower bills, hotter showers, and the manufacturer warranty registered in your name before we leave. VIEW SERVICE ### Unvented Cylinders (G3) Mains-pressure hot water to every tap in the house: Megaflo, Telford and Heatrae Sadia unvented cylinders supplied, installed, serviced and safety-inspected by a G3-qualified engineer with over 30 years on SE London homes. VIEW SERVICE ### Central Heating Installation A complete central heating system designed around your home, from heat loss calculation and boiler sizing through radiators, zoning, controls and commissioning. One team, one accountable install, warrantied in writing. VIEW SERVICE ### Bathroom Installation A new bathroom without the six-trades chaos. Danny sits with you, sketches the layout, sources fittings, then plumbs, tiles and finishes with a small trusted team, clean site, agreed timeline, one point of accountability from first sketch to final silicone bead. VIEW SERVICE ### Power Flushing A proper high-flow reverse flush that strips a decade of magnetite sludge out of your radiators and pipework, restoring flow, quieting the boiler, cutting gas bills, and unlocking manufacturer warranty on any new install. VIEW SERVICE ### Gas Safety Engineer Suspect a gas leak, need a safety inspection, or moving in and want the appliances checked before you use them? A Gas Safe registered engineer on-site as quickly as we can, with the tools, tightness testing kit and combustion analyser to prove the job's been done right. VIEW SERVICE Why choose DHP in Blackheath ## Concrete reasons, not marketing lines. Every fact below comes from how we actually run the business, over 30 years continuously trading from the same Plumstead yard, one Gas Safe registration. G3 Qualified on unvented cylinders 30+ yrs Working period properties in SE3 £5m Public liability insurance - Gas Safe registered #180521 - 4.9★ average from 159 Google reviews - Office open 8am–9pm, 7 days a week Blackheath property patterns ## The problems we see again and again in Blackheath. Local heating and plumbing issues are rarely random. They follow the era of the property, the pipework, the water conditions and the way the house has been extended. Here is what our diary in SE3, SE13 actually looks like. ### Georgian and Victorian pipework Original 15mm and 22mm iron and copper runs are often buried in plaster, under floorboards and inside cupboards that have been boxed in three times. We survey properly first so the price you get is the price you pay. ### Unvented cylinders Larger Blackheath houses commonly run unvented (pressurised) hot water. These systems are notifiable and legally require a G3 qualified engineer. Danny holds that qualification, so installs, replacements and annual services are handled correctly. ### Bathrooms with cornicing to protect You cannot just knock a soil stack through a cornice. We plan bathroom refurbishments around the plaster, use dust sheets and physical protection, and coordinate the trades so the room comes back cleaner than we found it. ### Cold radiators upstairs, hot down Classic symptom in an older SE3 house is a system that heats the ground floor fine but leaves the master bedroom cold. This is nearly always a balance and sludge problem, power flush plus proper commissioning solves it far more often than a new boiler does. ### Cator Estate covenants and access The Cator Estate has its own rules on external work and flue routes. We check what is allowed before quoting so a boiler position is not rejected halfway through the install. Our process ## The same five steps for every Blackheath job. - 1 ### Call the office Speak to Danny or the office team direct on 07956 994429 or 020 8244 0912. Describe the problem or the project in Blackheath, we'll tell you what we need to see. - 2 ### Free written estimate For anything bigger than a diagnostic, we survey the property and send a fixed, written quote. No sales pressure and no vague phone-guess pricing. - 3 ### Booked visit, real time window Because we're based in Plumstead, Blackheath visits get a real time window rather than a vague 'sometime today'. Approx 10–15 minutes from the yard. - 4 ### Work carried out to Gas Safe standard All gas work is carried out by Danny or a supervised engineer under Gas Safe registration #180521, and notified where legally required. - 5 ### Documented sign-off Manufacturer boiler warranty (typically 7–10 years) registered in your name, plus full documentation for landlord or property records. Blackheath FAQs ## Questions we hear from Blackheath customers. Do you cover Blackheath SE3?+Yes. Blackheath is inside our core service area. We cover Blackheath village, the Cator Estate, Blackheath Vale, Westcombe Park and the SE3/SE13 fringes on the Heath. How long does it take you to get to Blackheath?+Blackheath is about 2.5 miles from our Plumstead yard, so 10–15 minutes on a normal traffic day. That means we can quote real time windows rather than a vague 'sometime today'. Can you replace an unvented cylinder in Blackheath?+Yes. Unvented cylinder work is legally notifiable and needs a G3 qualified engineer: Danny holds that qualification. We can replace, upgrade or service unvented systems, and issue the correct paperwork. Do you handle full bathroom refurbishments in period homes?+Yes. Danny will design the layout with you, protect original plaster and cornicing, and coordinate the plumbing, tiling, electrics and making-good so you deal with one team, not five. How much is a boiler service in Blackheath?+A standard annual service is a fixed-price fixed-hour visit and starts from our £80 minimum labour charge. If parts are needed you will be told, and quoted, before we fit anything. Do you install high-output system boilers?+Yes. Larger SE3 houses often need a properly sized system boiler feeding an unvented cylinder rather than a combi. We do the heat-loss calculation and specify the correct output, undersizing is common when a cheaper firm just fits 'the same as before'. Can you work in Cator Estate properties?+Yes, and we take the covenants seriously. We confirm allowed flue routes and external work before pricing so nothing has to be undone. Do you offer power flushing in Blackheath?+Yes. Power flushing is often the honest answer for older SE3 systems with cold radiators or noisy boilers. It costs a fraction of a new boiler and, done properly, restores full circulation and heat output. Are you insured?+Yes. DHP London Ltd carries £5m public liability insurance and every job is fully documented on the invoice. Nearby areas ## We also cover the streets next door to Blackheath. Not in Blackheath itself? These are the neighbouring postcodes we cover on the same round. Or head back to our home page for the full service and area list, or straight to our contact form. South East London Greenwich SE10 · SE3 South East London Eltham SE9 South East London Woolwich SE18 North West Kent Sidcup DA14 · DA15 Book a visit in Blackheath ## Ready to get it sorted in Blackheath properly? Speak to Danny directly. Free written estimate, honest advice, and a fair fixed price. over 30 years on the tools in Blackheath and next door, we know what we’re looking at. Call 07956 994429 Call 020 8244 0912Request estimate - Gas Safe registered #180521 - 4.9★ from 159 Google reviews - Office 8am–9pm, 7 days a week - About 2.5 miles from our Plumstead base - Covers SE3, SE13 Gas Safe registered plumbing, gas & heating engineers with 40 years of local experience across South East London. Gas Safe #180521 Company No. 06064438 Services - Boiler Installation - Boiler Repairs - Power Flushing - Gas Safety Engineer - Landlord Gas Safety (CP12) - Gas Fires & Cookers - Heating Engineer - Central Heating Installation Service Areas - Greenwich · Woolwich - Blackheath · Eltham - Thamesmead · Plumstead - Abbey Wood · Erith - Dartford · Bexley · Sidcup Contact - 07956 99442924/7 Emergency - 020 8244 0912Office landline - info@dhplumbing.co.uk - London - Office: 8am – 9pm, 7 days a week © 2026 DHP London Ltd. All rights reserved. AboutOur WorkReviewsContactPrivacyTerms Call nowGet a quote