--- title: "Our Work | Plumbing, Heating & Electrical Projects London | MAMOSS" description: "View real plumbing, heating, electrical and drainage projects completed by MAMOSS across London. 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Every image is from an actual MAMOSS project. Photo Gallery ## Browse Our Completed Work All Work (42)Electrical (13)Gas & Heating (24)Plumbing (3)Videos (2) ![Schneider Acti9 consumer unit installation with RCBOs and MCBs wired to BS 7671 standards in London](/assets/electrical-panel-1-BHA1OGuL.jpg) Consumer unit installation — Schneider Acti9 with full RCBO protection ![Three-phase distribution board wiring by MAMOSS electricians in a London commercial property](/assets/electrical-panel-2-D4mQU1-c.jpg) Three-phase distribution board — commercial installation ![Electrical panel installation in progress showing SWA cable terminations in London](/assets/electrical-panel-3-DJhrDtyW.jpg) SWA cable termination and panel build ![Completed consumer unit with neatly routed cables installed by MAMOSS electricians](/assets/electrical-panel-4-CyKUcPzr.jpg) Completed consumer unit — cables routed and terminated ![New electrical distribution board installation with labelled circuits in a London property](/assets/electrical-panel-5-aCkXc7_C.jpg) New distribution board with circuit labelling ![High-density consumer unit fully wired with dual RCD protection for residential property](/assets/electrical-panel-6-DxZJloXh.jpg) Fully wired consumer unit — dual RCD split-load board ![Eaton three-phase distribution board with MCBs installed in London commercial premises](/assets/three-phase-db-CzWuohat.jpg) Eaton three-phase board — commercial fit-out ![Labelled distribution board with circuit schedule mounted on site during London electrical installation](/assets/distribution-board-labelled-CZrsvCl0.jpg) Distribution board with circuit schedule — site installation ![Schneider Acti9 Isobar P distribution board installed and closed in a London new-build](/assets/schneider-db-closed-otdEBQTN.jpg) Schneider Acti9 Isobar P — completed installation ![Heating system wiring centre with labelled boiler and valve connections](/assets/heating-wiring-centre-Bvr8pefb.jpg) Heating wiring centre — boiler and zone valve connections ![Cable drums on site during large-scale electrical rewiring project in London](/assets/cable-drums-Bg-X2viB.jpg) Cable drums on site — large-scale rewiring project ![Fluke 1736 power logger being configured for electrical load monitoring](/assets/power-logger-fluke-cU2_3G5S.jpg) Fluke 1736 power logger — electrical load monitoring ![MAMOSS electrician pulling cables through containment on a London commercial project](/assets/engineer-cable-pulling-Dq6NDEnU.jpg) Cable pulling through containment — commercial project ![Corroded boiler heat exchanger removed during boiler repair in London home](/assets/boiler-heat-exchanger-782Dmlvc.jpg) Heat exchanger removal — boiler repair diagnosis ![Boiler gas valve assembly with wiring connectors during servicing](/assets/boiler-gas-valve-M_JsbLZw.jpg) Gas valve inspection during boiler servicing ![Modern condensing boiler opened for annual service inspection by Gas Safe engineer](/assets/boiler-service-open-BH7K26Hz.jpg) Annual boiler service — internal inspection ![Boiler room with dual boiler installation and pipework by MAMOSS heating engineers in London](/assets/boiler-room-pipework-InbLoGoW.jpg) Dual boiler room installation with full pipework ![Boiler internals exposed showing expansion vessel and pump during maintenance](/assets/boiler-internals-oeyORCLF.jpg) Boiler stripped for component inspection ![Vaillant boiler diverter valve removed for inspection and replacement](/assets/boiler-valve-repair-0kOqrVon.jpg) Vaillant diverter valve replacement ![Worcester Bosch combi boiler opened for annual gas safety service in London](/assets/worcester-boiler-service-BmjlZiGF.jpg) Worcester Bosch annual service ![New condensing boiler installation showing heat exchanger and expansion vessel](/assets/boiler-new-install-CBN90jXE.jpg) New boiler install — expansion vessel and heat exchanger ![Vaillant boiler PCB circuit board repair and fault diagnosis by Gas Safe engineer](/assets/boiler-pcb-repair-eCJkCdOs.jpg) Vaillant PCB board — fault diagnosis and repair ![Condensing boiler service in progress with cover removed showing internal components](/assets/boiler-service-open-2-BgMAyXVi.jpg) Boiler service — cover removed for inspection ![Sprint Pro flue gas analyser displaying combustion analysis readings during boiler safety check](/assets/flue-gas-analyser-Bi-HCmz_.jpg) Flue gas analysis — combustion safety check ![Boiler condensate siphon and copper pipework during heating repair](/assets/boiler-siphon-repair-BGL_xsbt.jpg) Condensate siphon and pipework repair ![Worcester Bosch boiler fully stripped down for deep service and inspection](/assets/worcester-boiler-open-_hNKekU_.jpg) Worcester Bosch — full strip-down service ![Boiler service with digital display showing active fault diagnostics by MAMOSS engineer](/assets/boiler-service-display-CQzgOs2o.jpg) Boiler commissioning — digital display readout ![Worcester boiler heat exchanger cylinder and sensor wiring during servicing](/assets/worcester-cylinder-D8sCZo36.jpg) Worcester cylinder — sensor and wiring check ![Boiler fully stripped showing flue connection, gas valve and burner components](/assets/boiler-stripped-Bp_kDgLU.jpg) Full boiler strip — flue and gas valve inspection ![Boiler servicing with carbon monoxide alarm mounted above for gas safety compliance](/assets/boiler-service-co-alarm-zZr3M1sX.jpg) Boiler service with CO alarm — safety compliance ![Vaillant boiler displaying F.64 fault code requiring engineer diagnosis and repair](/assets/boiler-error-f64-7YnWBFl1.jpg) Vaillant F.64 fault code — engineer diagnosis ![Worcester Bosch combi boiler servicing showing internal combustion chamber and wiring](/assets/worcester-boiler-service-2-DQGr1SZ0.jpg) Worcester Bosch — combustion chamber service ![Close-up of Worcester boiler heat exchanger with safety notice label during annual service](/assets/worcester-boiler-internals-P-aLBuoF.jpg) Worcester heat exchanger — annual inspection ![Commercial plant room with wall-mounted boiler, insulated pipework and circulation pumps](/assets/boiler-plant-room-DnN7C4b3.jpg) Commercial plant room — boiler and circulation system ![Vaillant boiler Grundfos UPM3 circulation pump during replacement by MAMOSS engineer](/assets/vaillant-pump-repair-DTKHn2KT.jpg) Vaillant pump replacement — Grundfos UPM3 ![Gas leak detection meter reading at gas meter installation for safety inspection](/assets/gas-leak-detection-C1q3OID3.jpg) Gas leak detection — meter safety inspection ![Large commercial plant room with industrial boilers, cylinders and insulated pipework](/assets/commercial-plant-room-CIoepK43.jpg) Commercial plant room — industrial heating system ![Under-sink plumbing waste trap and pipework installation in London kitchen](/assets/plumbing-pipework-Yh1z3YNM.jpg) Under-sink waste trap and pipework installation ![RIDGID leak detection probe locating water leak behind wall in London property](/assets/leak-detection-BHES6NQm.jpg) Leak detection — RIDGID probe locating hidden leak ![MAMOSS engineer bending copper pipe using hydraulic pipe bender on construction site](/assets/engineer-pipe-bending-BnHXjFPP.jpg) Copper pipe bending — site fabrication Boiler repair in progress — on-site footage Boiler servicing — live on-site footage ![Greater London boroughs coverage map showing all areas served by MAMOSS plumbing, heating and electrical engineers](/assets/london-coverage-map-B9ZwKZzz.jpg) ### We Cover All of Greater London From East London to West, our Gas Safe registered engineers and qualified electricians deliver certified trade services to every borough. Based in Bethnal Green, we respond within 60 minutes across the capital. [East London](/areas/east-london)• [West London](/areas/west-london)• [South London](/areas/south-london)• [Chelsea & Kensington](/areas/chelsea-kensington)• [All Areas](/areas) Case Studies ## Documented Outcomes, Not Vague Claims [Boiler Installation](/services/boiler-installation)Project #1 ### Full Boiler Replacement – Victorian Terrace, Shoreditch Removed a 20-year-old conventional boiler system and installed a modern A-rated combi boiler with magnetic filter, system flush, and new thermostatic radiator valves throughout. Completed in one day with full Gas Safe certification. #### Key Outcomes - 40% reduction in annual gas bills - Hot water on demand — no cylinder required - 10-year manufacturer warranty secured - Full Gas Safe certification and landlord compliance [Emergency Plumbing](/services/emergency-plumber)Project #2 ### Emergency Leak Repair – Managed Block, Bethnal Green Responded to a burst water main affecting four ground-floor flats in a managed residential block. Isolated the supply within 15 minutes of arrival, completed a permanent repair, and coordinated with the property management company to restore service the same day. #### Key Outcomes - 15-minute response time from call-out - Supply restored within 3 hours - No secondary water damage to properties - Full incident report provided to management [Electrical](/services/electrician)Project #3 ### Complete Rewire – Period Property, Chelsea Full rewire of a four-bedroom Edwardian house including new consumer unit, LED downlighting throughout, outdoor security lighting, and smart home pre-wiring. All work completed to BS 7671 18th Edition standards and passed inspection first time. #### Key Outcomes - Full compliance with 18th Edition wiring regulations - Passed local authority inspection first time - Insurance-compliant electrical installation certificate - Future-proofed with smart home wiring [Drainage](/services/drain-unblocking)Project #4 ### Drainage Survey & Repair – Commercial Property, Hoxton Conducted a full CCTV drainage survey for a commercial premises experiencing recurring blockages. Identified root ingress and a collapsed section of Victorian clay pipe. Completed a targeted excavation repair and replaced the affected section with modern UPVC. #### Key Outcomes - Root cause identified via CCTV survey - Targeted repair — no unnecessary excavation - 12-month guarantee on all drainage work - Recurring blockage issue permanently resolved [Gas & Heating](/services/central-heating-engineer)Project #5 ### Landlord Gas Safety Programme – Portfolio of 30 Units Provided annual CP12 gas safety inspections for a portfolio of 30 rental units across East London. Coordinated directly with tenants for access, completed all inspections within a two-week window, and delivered digital certificates to the letting agent. #### Key Outcomes - 100% compliance achieved across all 30 units - Direct tenant coordination — zero landlord admin - Digital CP12 certificates delivered same-day - Priority scheduling for annual renewals [Plumbing](/services/plumber)Project #6 ### Bathroom Refurbishment – Family Home, South London Full strip-out and refurbishment of a family bathroom including new suite installation, underfloor heating, wall and floor tiling, concealed cistern WC, thermostatic shower valve, and ventilation upgrade. Project managed from design to completion. #### Key Outcomes - Completed on schedule within 10 working days - Single point of contact throughout - Building regulations sign-off obtained - 12-month workmanship guarantee Explore our services: [Boiler Installation](/services/boiler-installation)• [Emergency Plumber](/services/emergency-plumber)• [Electrical Services](/services/electrician)• [Drainage Services](/services/drain-unblocking)• [Client Reviews](/reviews)• [Get a Free Estimate](/contact) ![MAMOSS engineers delivering quality plumbing, heating and electrical services across London](/assets/cta-bg-BCYUu3i9.jpg) ## Your Property Problem Solved Next Join thousands of London property owners who trust MAMOSS for reliable, certified trade services. [Request a Free Estimate](/contact)[07377 788881](tel:07377788881) [![MAMOSS – Multi-Trade Property Services London](/assets/logo-CrEg7qQf.png)](/) Multi-trade property services across London. Gas Safe registered, CHAS accredited, fully insured. [07377 788881](tel:07377788881) [info@mamoss.co.uk](mailto:info@mamoss.co.uk)Unit C, 279 Bethnal Green Road, London E2 6AH ### Services - [Central Heating Service](/central-heating-service) - [Plumber](/plumber) - [Electrician](/electrician) - [Gas Engineer](/gas-engineer) - [Boiler Supplier](/boiler-supplier) - [Drainage Service](/drainage-service) - [Bathroom Renovator](/bathroom-renovator) ### Areas - [Bethnal Green](/areas/bethnal-green) - [Shoreditch](/areas/shoreditch) - [Hackney](/areas/hackney) - [Stratford](/areas/stratford) - [Hoxton](/areas/hoxton) - [East London](/areas/east-london) ### Guides - [Boiler installation cost London](/guides/boiler-installation-cost-london) - [Combi vs system boiler](/guides/combi-vs-system-boiler) - [How long does a boiler install take?](/guides/how-long-does-boiler-installation-take) - [What to do if a pipe bursts](/guides/what-to-do-if-pipe-bursts) - [How to turn off your water (UK)](/guides/how-to-turn-off-water-uk) ### Company - [About Us](/about) - [Our Work](/our-work) - [Reviews](/reviews) - [Special Offers](/specials) - [Contact](/contact) ### Accreditations - [Gas Safe Registered ↗](https://www.gassaferegister.co.uk/) - [CHAS Accredited ↗](https://www.chas.co.uk/) - [Safe Contractor ↗](https://www.safecontractor.com/) - [Constructionline ↗](https://www.constructionline.co.uk/) - [CIPHE Member ↗](https://www.ciphe.org.uk/) © 2026 MAMOSS Ltd. 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