Gas-Elec-Bag: friendly, honest and reliable property repair and install services

At GasElecBag, we deliver top-quality construction, install, repair and renovation services to domestic/residential and small commercial property customers in or nearby: London (including Zone 1), Cheshunt, Romford, Milton Keynes and Bedford

📞 Tel/SMS: 0 7 4 9 1 2 1 6 4 8 4
💬 WhatsApp In a hurry? Send a quick photo/message, we will reply.

Our small team include Gas Safe registered gas engineers, certified NICEIC and NAPIT electricians, additionally professional plumbers, plasterers, carpenters, and an EPC assessor.

• Friendly • clean • respectable • honest • fluent English speaking (should that matter) • NOT an agent for other builders • UK qualified and experienced (over 20 years) • value for money, fair pricing • NOT the cheapest, or the most expensive

• Vaillant approved advanced installer: 10 year warranty, officially trained and qualified
• Viessmann approved installer: 10 to 12 year warranty, officially trained and qualified

We make sure every job is done safely and with top quality!

Our services

• Gas boiler: full gas safe registered services, gas boiler repair, install, fault diagnosis, service, upgrades.
• GasElecBag is a Vaillant approved advanced installer: 10 year warranty
• GasElecBag is a Viessmann approved installer: 10 to 12 year warranty
• All Gas Boilers: Expertise in all popular gas boiler manufacturers
• Electrical: full electrician services, electrical install, repairs, EICR reports, fuse board installation, swap, full rewire, lights, sockets, cable extensions, EV charger install
• Plumbing: hot water, cold water, sinks, taps, toilets, waste water, drainage, storage tanks, unvented hot water cylinders, vented hot water cylinders
• Heating: repair, design, install, fault diagnosis, underfloor heating, radiators, power flushing, central heating, electric heating
• Bathrooms: repairs, install, design and full refurbishment
• Gas Certificates: Landlord gas safety certificate CP12, home owner gas condition reports
• Electrical certificate: Landlord Electrical installation condition report (EICR)
• EPC: Government approved Energy Performance Certificate (EPC) survey, assessment, registration and guidance
• Insurance repairs: Years of experience dealing with Insurance companies, including detailed quotes, buildings control and compliance documentation
• Smart home setup: Advanced digital smart home configuration, programming, setup, WiFi and smart phone apps, HomeAssistant integration, cloud technology setup

Areas covered:

• London, Central London (Zone 1)
• Milton Keynes, Newport Pagnell, Leighton Buzzard
• Bedford
• Cheshunt, Waltham Cross, Epping, Enfield, Potters bar, Broxbourne, Romford
• Congestion charge in London Zone 1, no problem, we specialize in the chaos of Central London and suburbs.

Looking for a gas engineer in London? we can serve you. Looking for an Electrician in London? we can help you.

• Energy-efficient models
• 10+ year manufacturer guarantees
• Vaillant approved advanced installer: 10 year warranty
• Viessmann approved installer: 10 to 12 year warranty
• Free, no-obligation quotes

Boiler repairs & emergency callouts

Got a broken boiler? Don’t let the cold take over! Our expert engineers are on hand for same-day boiler repairs, and we offer emergency callout services.

• Fast and reliable fixes
• Repairs for all major brands
• Stocked with spare parts
• Vaillant Advanced registered engineers

Landlord Services

We specialize in working with landlords and letting agents to ensure properties are fully compliant and tenants stay happy. We handle Gas Safety Certificates (CP12), regular boiler servicing, and hassle-free repairs.

• Landlord gas safety certificate (CP12)
• EICR: Electrical Installation Condition Report
• Key collection and tenant coordination
• CP12 Gas Safety Inspections
• Efficient repairs to minimize disruption

Why choose GasElecBag?

• 20 Years of Experience: We’ve built a reputation for delivering exceptional service at competitive prices.
• All Major Boiler Brands: We work with the best, including Vaillant, Worcester Bosch, Viessmann, Baxi, Worcester-Bosch, Intergas and Glo-worm.
• Gas Safe Registered: Safety is our top priority, so you can trust us to get the job done right.
• Emergency Services Available: Boiler breakdown at an inconvenient time? Call us 24/7, and we’ll be there.
• Respect for property and customers: We arrive on time, clean up thoroughly, respect your space, and speak with courtesy, no disappearing acts or leaving your place like a demolition site.

Smart heating solutions at GasElecBag: advanced installation and configuration

At GasElecBag, we specialize in advanced smart heating solutions for your home. Whether you need smart thermostat installation, OpenTherm integration, or advanced configuration for your heating system, we provide cutting-edge services to ensure your heating is efficient and easy to control.

Our chief Gas Safe engineer is also a full-stack software developer, making us uniquely qualified to offer advanced solutions that go beyond traditional gas engineers.

Popular market leading smart home heating devices. We install and configure

Here’s a look at some of the leading smart heating devices and protocols we work with and understand the complexities, ensuring your home is ready for the future of heating:

• Google Nest: A highly popular smart thermostat that learns your schedule and adjusts your heating accordingly. It is compatible with OpenTherm and integrates with Google Home for seamless smart home control.
• Tado: Ideal for heating zones and smart radiator controls, Tado offers OpenTherm compatibility and remote control via a mobile app. Perfect for homes with varied heating needs.
• Amazon Alexa, Google Home, Matter, Zigbee, Tuya, SmartLife, eWeLink, Z-Wave: Integrations with the leading smart home technology protocols
• OpenTherm: OpenTherm is not limited to just thermostats; it’s a comprehensive communication protocol that allows various heating devices to work together in a smart, efficient way. OpenTherm: open communication protocol for HVAC (heating, ventilation, and air conditioning) systems. See our in-depth article
• Honeywell Evohome: A flexible system allowing multiple zone heating control, this system is excellent for homes that need precise control in different areas.
• Vaillant vSMART: A proprietary smart thermostat designed for Vaillant boilers, offering full modulation and integration with the Vaillant ecoTEC range.
• Worcester Bosch EasyControl: A proprietary smart thermostat that allows remote control of Worcester Bosch boilers, optimizing heating schedules and energy efficiency.
• Viessmann Vitoconnect: Viessmann’s proprietary smart heating system, integrating with its range of boilers to offer smart modulation and energy efficiency.
• Home Assistant: We understand the add-ons and dashboard configurations for boiler and heating integrations. Advanced tips and tricks for OpenTherm data monitoring

Energy savings, the smart choice

By installing a smart thermostat, you can save over 15% on your energy bills. Devices like Nest, Tado, and Honeywell learn your daily routines and optimize your heating schedules accordingly. This ensures that you’re not wasting energy heating your home when you’re not there.

Keep it simple!!

At GasElecBag, we understand that not everyone wants the complexity of smart systems. We also install traditional hard-wired simple thermostats that are perfect for elderly homeowners, rented properties with tenants or where just keeping it simple is preferred. These systems are reliable, easy to use, and still provide energy-efficient heating.

Why GasElecBag stands apart, honest talk about building services

We know the building industry has its fair share of problems, and some builders give the rest a bad name. At GasElecBag, we’re different—no fluff, just real service. Here’s how we tackle common issues and ensure you get the quality you deserve.

• Qualified and Certified: We’re fully accredited, including Gas Safe, and up-to-date with building regulations including Part P Electrics, Part L Energy Efficiency and BS7671 Electrical Installations. We are competent, qualified and understand regulations.
• Clear Communication: We won’t leave you guessing. We set realistic expectations and keep you updated at every stage. You’ll know what’s happening, when it’s happening, and why.
• Experienced Team: With over 20 years in the industry, we’ve seen it all. We understand technical details like flow rates, pressure drops, fabric heat loss R-Values, U-Values rates of conductivity, hydraulic separation and the latest energy performance requirements: things that make a real difference in your build.
• Pricing Without Surprises: We believe in transparent and collaboration on estimates. No hidden fees, no disguised charges. Our aim is to open with pricing, naturally as a business we must be profitable, though we are clear with value for money to our customers.
• Respect for Your Property: We arrive on time, clean up properly, and respect your space—no disappearing acts or leaving your place looking like a demolition site.
• Genuine Aftercare: We’re not the “install it and forget it” type. If an issue arises, we’re a call away. We’ll come back, fix it, and make sure everything is working as it should.
• Efficient Resolution of Issues: We understand that mistakes happen, no builder is perfect. But when they do, we own up and fix them. Whether it’s redoing a job at no extra cost or finding a fair solution, we’re committed to getting it right.
• Small, Focused Team: We’re not a massive firm juggling dozens of jobs at once. Being a small team means we can focus on your project, offering a personal and tailored service without spreading ourselves too thin
• No Cowboy Tactics: We don’t disappear when things get tough, and we don’t dodge calls. If there’s an issue, we’re there to sort it out.
• Respect for Landlords and Tenants: We understand the challenges landlords face. We coordinate directly with tenants and estate agents to arrange access, carry out checks, and ensure compliance with Gas Safety Certificates without any hassle.
• Financial Stability: We operate with a stable financial base, allowing us to focus on quality work rather than chasing unrealistically low-fee jobs. We value safety, follow regulations, and try not cut corners, ensuring projects strike a balance between quality and our clients’ budgets.

Common reasons why customers leave bad reviews and our solutions to keep you satisfied

We’ve looked into why customers leave bad reviews for builders, and here’s how we avoid these pitfalls:

• Missed Deadlines: We set realistic timeframes and stick to them. If delays happen, we communicate openly and adjust plans to minimize disruption.
• Unreliable Communication: We know the frustration of not getting updates. Our team stays in touch throughout the project, so you always know what’s going on.
• Disputes Over Costs: We believe in transparency from the start. Our estimates clearly outline what’s included, what is not and potential costs that might arise for unforeseen issues that can only be assessed once work begins. We make sure you understand any variables before we start, so there are fewer surprises down the line. Any changes or additional work needed are discussed and agreed upon before proceeding, ensuring you remain in control of the budget throughout the project.

• Realistic Expectations and Solutions: We’re human, and so are you. We value mutual respect and approach every challenge with a sensible, solution-focused mindset. It’s not just about preventing problems, it’s about forging a solution together for a mutually amicable outcome.

We’re about delivering real results and building trust through quality, reliability, and communication. No nonsense, no gimmicks—just solid work from a reliable and sensible team that genuinely cares.

Pardon our dust! We’re a passionate team of engineers focusing on delivering the best for our clients, so time is limited for updating our website. Please bear with us during the “construction” (pun intended!).