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Very high standard of work carried out by Mark. Solved my issue,very knowledgeable,punctual and tidy. Would recommend & certainly use again.

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Viktor and his team thanks so very much for all your hard work these guys know how to give a professional job very approachable nothing too much trouble they just get on with the job so we didn't have too worry would have them back in a heartbeat

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Excellent service, easy to deal with, good price. Would recommend and will definitely use again.

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At Rated People, we connect you with professional gas boiler installers who can ensure your home is heated efficiently and safely. Whether you’re upgrading your current system or need a completely new gas boiler installation, our trusted experts are just a click away. With thousands of installers available, you can post your job for free and receive up to three quotes to find the perfect fit for your needs. Don’t delay—find a local gas boiler installer today and enjoy a warmer, more energy-efficient home.

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What are the advantages and disadvantages of gas boilers

Gas boilers remain a popular choice for heating homes in the UK. Here are the key advantages and disadvantages to help you decide if a gas boiler is the right choice for your home:

Advantages:

  • Energy Efficiency: Modern gas boilers are highly efficient, with many boasting an energy efficiency rating of over 90%, helping to reduce both energy consumption and your heating bills.
  • Reliable Heat: Gas boilers provide a consistent and reliable heat source, ensuring your home stays warm even in the coldest months.
  • Cost-Effective: Gas is generally cheaper than other fuel types, such as electricity or oil, making gas boilers more economical to run in the long term.
  • Quick Heating: Gas boilers heat up quickly, ensuring your radiators and water are warm within minutes.

Disadvantages:

  • Initial Cost: While running costs may be lower, the initial cost of a new gas boiler installation can be high, especially for premium models or complex installations.
  • Gas Supply Dependency: Gas boilers rely on a continuous supply of natural gas, which can be an issue in rural areas or places without a mains gas connection.
  • Environmental Impact: Although gas is cleaner than other fossil fuels, it still produces carbon emissions, making it less environmentally friendly than renewable energy sources like heat pumps or solar panels.

Cost of a new gas boiler installation

The cost of installing a new gas boiler depends on several factors, including the type of boiler, the size of your home, and the complexity of the installation. Here’s what you can expect:

  • Boiler Type: The type of boiler you choose plays a significant role in the overall cost. Combi boilers, which provide heating and hot water without a separate tank, are generally more affordable, costing between £1,500 and £3,000 for installation. System and conventional boilers, which require more components, can cost between £2,000 and £4,500.
  • Installation Costs: Labour costs for a gas engineer to install a boiler typically range from £500 to £1,500, depending on the complexity of the job and the region. Replacing an old boiler with a new one in the same location is usually cheaper than relocating the boiler or making significant changes to the pipework.
  • Additional Costs: You may need to factor in extra costs for components such as new radiators, thermostats, or smart controls, which can enhance the efficiency of your heating system. Additionally, if your home requires a flue upgrade or significant changes to the pipework, these can add £300 to £1,000 to the total price.

While a new gas boiler installation may seem like a significant upfront investment, the improved energy efficiency of modern boilers can lead to long-term savings on your energy bills.

How long does it take to install a gas boiler?

Straightforward Replacement: If you’re replacing an old boiler with a new one in the same location, the installation process typically takes between 1 and 2 days. This is the most straightforward and quickest type of installation.

Relocation or New System Installation: If you’re moving the boiler to a new location or switching to a different type of system (e.g., from a conventional to a combi boiler), the installation may take 2 to 3 days or more. Additional time will be needed for any required pipework or flue changes.

Testing and Safety Checks: Once the installation is complete, the installer will perform thorough testing and safety checks, including checking for leaks, ensuring the system is functioning correctly, and verifying compliance with regulations. This usually takes a few additional hours.

Other gas boiler installation FAQs

Can I legally install my own gas boiler?

No, you cannot legally install your own gas boiler unless you are a Gas Safe registered engineer.

Are new boilers cheaper to run?

Yes, new boilers are generally cheaper to run than older models due to their higher energy efficiency. Modern gas boilers have efficiency ratings of 90% or higher, meaning they use less fuel to produce the same amount of heat.

Does home insurance cover new boilers?

Home insurance policies typically do not cover the cost of a new boiler installation, as this is considered a maintenance expense. However, some policies may include boiler breakdown cover as an optional extra.

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Greenserve avatar

Greenserve

Gas Boiler - Installation

DISCOUNT FOR RATED PEOPLE CUSTOMERS Mention "Rated People" when booking to claim your exclusive discount! About Us Founded in 2012, Greenserve is a leading provider of Domestic Gas Heating, Plumbing, and Electrical services. Located in wimbledon, West London, we've grown steadily over the years, supported by a robust maintenance team. Our diverse client base ranges from private homeowners to Local Authorities, Housing Associations, Estate Agents, and Insurance Companies. Our Values At Greenserve, delivering top-tier service at a price that fits your budget is at the heart of what we do. To ensure we consistently meet our high standards, our operations are independently certified by industry authorities. Customer Care Your satisfaction is our priority. Here's what you can expect from working with us: • Competitive Fees without compromising on quality • Prompt Responses to all customer requests • Proactive Advice to help you make informed decisions • Customer-Focused Service—your best interests always come first • Commitment to Quality—we source reliable, high-performing products • Cost Savings passed directly to our customers Our Mission Our goal is to share our expertise with more homes across London and beyond. We’re committed to expanding our reach while maintaining the high quality standards our clients rely on. We continue to invest in our team and infrastructure to achieve this vision. Why Choose Greenserve? With extensive experience, certified standards, and a customer-first approach, we offer the reliable, cost-effective services you need for all your Gas Heating, Plumbing, and Electrical issues. Get in touch today and find out how we can help!

J and J Building Construction have been supporting customers for over 40 years. We take on all general building works such kitchens, bathrooms, loft conversion, drives, general plumbing, electrical, decoration, garden and patio works, roofing etc.

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Reviewed by Ash on 3/9/2026

I was pleased with the work JandJ Construction did on my bathroom project. Everything went according to our liking and they always asked before making any changes or fixing units if they were unsure. I have to say, the guy who was at my place every day did an amazing job. He was hardworking, professional, and paid great attention to detail. Thank you JandJ Construction and I would definitely recommend you!

Our company specialises in the installation and maintenance of domestic boilers and central heating systems. We are based in Wigan and serve surrounding towns and cities including Warrington, Leigh, Bolton, Bury and Manchester. All of our engineers are experts in what they do, and we never subcontract any gas installation work. This way we are 100% responsible for the quality of out workmanship and can keep the prices low. Our services include; new boiler installations, boiler replacements, central heating installations, boiler repairs, boiler servicing, landlord gas safety certificates, powerflushes, radiator installation and heating upgrades. We work with a wide variety of boiler manufacturers including Worcester, Baxi, Ideal and Vaillant.

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Reviewed by Stephen on 24/1/2025

nothing to big or small we deliver quality service at a reasonable price fully qualified and fully registered with industry

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Reviewed by Angela on 30/10/2020

The tradesman completed the job quickly and efficiently,. When there was a complication it was dealt with professionally and without any fuss. He even gave me useful advice about using my cooker safely, very thorough and informative.

We are a specialist gas boiler servicing and repair company offering bespoke service and care plans. With over 16 years experience our bespoke care plans are designed with customer service as the absolute priority.

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Reviewed by Ann on 3/9/2026

property maintance company, qualified plumbers and Part p electricians.

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Reviewed by Margaret on 21/10/2023

We are a local company,gassafe and oftec registered. We are vaillant accredited installers.domestic and commercial all our engineers are highly trained ,friendly and professional , we also cover all electrical work by our fully qualified electricians, cctv, fire alarms, burglar alarms , our building team can cover all your home improvements from patios ,Extensions, loft conversations,house builds, no subcontractors all are team are employed directly by us to give you the best reliable service

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Reviewed by Rod on 2/8/2024

The work was completed the day after my initial enquiry, following the initial quote. It was on budget end efficiently carried out, with no fuss and no mess. We were extremely pleased with the service we received and would have no hesitation in recommending this company for any electrical or plumbing work. Absolutely first class !!.

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Reviewed by william on 10/11/2017

3 hours from first contact to working boiler. Dose not get better than that.

Heating Homes Ltd are a team of plumbing and heating experts who provide the highest standards of workmanship and customer service to domestic and commercial clients based in London, Surrey, Sussex and beyond. Our qualified engineers are experienced with all makes of boilers. We can undertake full design of larger projects as well as boiler replacements and system upgrades. We can also offer advice and fitting of underfloor heating and smart thermostats. We are accredited Gas Safe Engineers so you can be assured that any work carried out by Heating Homes is safe and legal. As well as this we are Worcester Bosh accredited platinum installers and we are on the Safecontractor Approved list. Please don’t hesitate to get in contact with us today!

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Reviewed by Bernd on 2/1/2019

Excellent work from Heating Homes replacing two heavy duty oil boilers in an external boiler house. David and Robert (the principals) were good to deal with at the quotation stage, came up with a fair price, and oversaw the project to completion on time and as quoted. Luke, who did most of the work, was amazingly tidy, working late to get the system running before Christmas and returned on a Sunday evening to deal with a small problem which had unexpectedly developed. Very professional all round.

10 years experience in the industry. Clean,tidy and professional. All work completed at the highest standards.

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Reviewed by Jason on 24/9/2025

I highly recommend Harry. Very professional, friendly and got my cooker installed in no time at all! Excellent job and service!

Jdw plumbing and building supply a service of heating Bathroom renovations , wet rooms and all general plumbing work are carried out to a very high standard. We also cover all general building works. Free quotes

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Reviewed by sravanth on 3/7/2019

James will be my first point of contact for all building and plumbing related works until he retire. After having multiple quotations, we decided to give this job (complete bathroom refurbishment & kitchen tiling). His quotation was reasonable, and after seeing the outcome - we feel every penny is worth. We have got a quote without having enough knowledge, and proper design. But James took care of everything, he did research, he came up with design & plan - finally it's looking far better than we thought.

R&R Builders is a leader in providing value-added construction services to our customers by creating a successful partnership with them throughout the construction process. Our pledge is to establish lasting relationships with our customers.

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Reviewed by Eden on 31/10/2025

R&R done an excellent work replaced the whole bathroom including the flooring. Very professional, punctual and gets the job done at a reasonable price. Highly recommend him to anyone who is looking for bathroom work. Thank you, Eden & Kristian

Ex BG domestic gas engineer, located in South West London, just started as solo. Experience in gas boilers and hub installation, servicing and landlord certificates, quality is over quantity, work for a cause not for applaus,

At Heathfield Heating, we provide reliable, high-quality plumbing and heating services for homeowners who want a professional job done right. With years of hands-on experience and fully qualified in domestic gas work, we specialise in boiler installations, servicing, repairs, and general plumbing work. From fixing leaks and installing new bathrooms to diagnosing boiler faults and upgrading heating systems, we offer efficient, practical solutions tailored to your home. We take pride in clean, tidy workmanship and treat every property with respect. You can expect honest advice, fair pricing, and a trustworthy service from start to finish.

With over 30 years of experience in all levels of the building industry, I have a team of fully insured trades people at your disposal. Our speciality is interior refurbishments inc. kitchen/bathroom fitting and supply and associated services.

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Reviewed by Lee on 31/8/2023

Excellent response and communication.

FINISHERS. You're complete building & decorating solutions. Established 1995 , finishers is a family ran business in the centre of Cambridge we guarantee any work undertaken will be completed to the highest standards. For a free quote contact FINISHERS

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Reviewed by Sheila on 25/6/2025

my potting shed was reglazed and the rotten wood replaced arrived on time to give an estimate Work completed to a high standard prompt reliable Michael was open honest and the work done was value for money

Plumbing heating and gas services to your home. BoIler breakdowns, boiler servicing , blocked drains, tap changes, Leaking toilets no job too small.

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Reviewed by Liz on 13/5/2023

Great service and price for gas safety check and faulty toilet cistern would definitely recommend.

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