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 - Sidcup Gas Safe #1805214.9★ · 159 Google reviewsDA14 · DA15 # Plumbing, Gas & Heating Engineersin Sidcup Careful work in DA14 and DA15 Sidcup's inter-war and post-war family homes are exactly the kind of property that rewards a properly sized heating system and a well-planned bathroom. We've worked DA14 and DA15 for three decades and we do the job properly first time. Request a free estimate Call 07956 994429 Call 020 8244 0912 Free written estimates in Sidcup. £80 minimum labour if you go ahead. 30+ yrs Working DA14 and DA15 G3 Qualified on unvented cylinders 4.9★ 159 Google reviews Local relevance ## Why Sidcup customers keep calling us back. Sidcup housing is mostly 1930s and post-war semis and detached family homes, with a steady share of larger properties on system boilers and unvented cylinders. Our week in DA14 and DA15 is typically boiler and cylinder upgrades, full heating overhauls, bathroom refurbishments and steady servicing work for repeat customers who first called us 15 or 20 years ago. About 5.5 miles from our Plumstead base · approx 20 minutes on a normal traffic day. Neighbourhoods we cover Sidcup High StreetLonglandsBlackfen-adjacentHalfway StreetFoots CrayNew Eltham border We serve SidcupDA14 and DA15 including Sidcup High Street, Longlands, Blackfen-side, Halfway Street and the residential streets down towards Foots Cray. Response timesSidcup is around a 20-minute run from our Plumstead yard. Booked visits are usually as soon as we can schedule you in; emergency dispatch during 8am–9pm office hours is prioritised. Property types we knowPredominantly 1930s and 1950s semis and detached family homes, plus later infill, and a small share of purpose-built flats near the town centre. Common Sidcup jobsSidcup calls are usually boiler and cylinder replacements, radiator upgrades on cold-upstairs systems, bathroom refurbishments and CP12 landlord compliance. Services in Sidcup ## What we get called out for in Sidcup. The jobs below make up the bulk of our week inside DA14, DA15. 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 ### Boiler Repairs Cold radiators, no hot water, an F1, F22 or E133 lockout code, we've seen every fault on every major boiler over the last 30+ years. Fixed-price diagnostic, honest recommendation on repair versus replace, no upsell. VIEW SERVICE ### Landlord Gas Safety (CP12) Statutory annual gas safety inspection carried out by a Gas Safe registered engineer, certificate emailed to tenant and agent within hours, records retained for 10 years, everything you need to stay legally compliant as a landlord in South East London. VIEW SERVICE Why choose DHP in Sidcup ## 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. 30+ yrs Working DA14 and DA15 G3 Qualified on unvented cylinders 4.9★ 159 Google reviews - Gas Safe registered #180521 - 4.9★ average from 159 Google reviews - Office open 8am–9pm, 7 days a week Sidcup property patterns ## The problems we see again and again in Sidcup. 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 DA14, DA15 actually looks like. ### 1930s semi heating layouts The same story we see across our patch, small-bore pipework, undersized upstairs radiators, boilers picked on price. We resize honestly rather than copying whatever was there. ### Unvented cylinders in larger homes Bigger Sidcup family homes often run unvented cylinders. Legally notifiable and G3-only work, Danny is qualified, so it is done correctly with the paperwork. ### Cold upstairs, hot down Classic complaint in Sidcup semis. Almost always sludge and balance rather than boiler capacity. We diagnose properly and quote the actual fix, not a new boiler by default. ### Bathroom refurbishments in family homes Adding an en-suite or reworking a family bathroom is a common Sidcup job. Danny designs the layout with you so the pressure, capacity and drainage all actually work. ### Landlord and letting-agent compliance DA14/DA15 has a steady rental market. We batch CP12 inspections and annual services so portfolios stay compliant without last-minute rushes. Our process ## The same five steps for every Sidcup 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 Sidcup, 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, Sidcup visits get a real time window rather than a vague 'sometime today'. Approx 20 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. Sidcup FAQs ## Questions we hear from Sidcup customers. Do you cover the whole of Sidcup?+Yes. DA14 and DA15 including Sidcup High Street, Longlands, Blackfen-side, Halfway Street and Foots Cray are inside our service area. How quickly can you get to Sidcup?+About 20 minutes from our Plumstead yard on a normal traffic day. Booked visits are typically as soon as we can schedule you in. Can you fit or replace an unvented cylinder in Sidcup?+Yes. Danny is G3 qualified, installs, replacements and annual services on unvented cylinders are all handled correctly with the paperwork. How much does a boiler installation cost in Sidcup?+It depends on brand, output, controls and pipework. Every quote is written and fixed after a proper survey. £80 minimum labour applies once agreed. Do you do CP12 landlord certificates in Sidcup?+Yes. Danny is Gas Safe registered (#180521) and issues CP12 certificates across DA14 and DA15, usually within a day or two. Do you offer full bathroom refurbishments?+Yes. Danny will design the layout, quote in writing and coordinate all trades from strip-out to hand-over. Do you offer power flushing?+Yes. Power flushing is often the right answer for older Sidcup systems with cold upstairs radiators. It usually costs a fraction of a new boiler. Which brands of boiler do you install?+Mainly Vaillant, Ideal, Baxi and Glow-worm, with the manufacturer's warranty (typically 7–10 years) registered in your name. Do I get a guarantee?+Yes. Every job is fully documented on a written invoice. Nearby areas ## We also cover the streets next door to Sidcup. Not in Sidcup 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. North West Kent Bexley DA5 · DA6 · DA7 South East London Eltham SE9 North West Kent Dartford DA1 · DA2 South East London Blackheath SE3 · SE13 Book a visit in Sidcup ## Ready to get it sorted in Sidcup properly? Speak to Danny directly. Free written estimate, honest advice, and a fair fixed price. over 30 years on the tools in Sidcup 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 5.5 miles from our Plumstead base - Covers DA14, DA15 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