Same Day Boiler Repair

Arrange your boiler repair with Smart Home Heat. Our engineers can diagnose and fix issues quickly.

Professional, friendly, trusted and local to you

Gas Boiler Repair

Get Your Boiler Running Smoothly Again!

Smart Home Heat Limited are leading boiler repair experts in South London. Our engineers are Gas Safe registered with years of experience and a broad knowledge all types of boilers which means we can solve a wide range of heating-related problems. We can fix the most commonly fitted boilers in most premises, skilled at fixing and installing Worcester Bosch, Vaillant, Potterton, Ideal, Baxi  and many more gas boilers.

Our engineers are available 24 hours a day, 7 days a week so we can respond to you quickly and will get your hot water and heating back up and running within a day. Call us today and we will be out to repair your boiler as fast as possible. No job is too small or big for us

Trust Smart Home Heat Limited to keep your boiler running smoothly and efficiently. Contact us today to schedule your boiler and heating repair.

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    Why choose us?

    If you require cost effective, reliable heating and plumbing engineers then look no further.

    Smart Home Heat have been providing boiler and central heating repairs for over 20 years in South London and surrounding areas . We take pride in providing our clients with service that’s honest, personal and reliable. We only use the best quality components and all of our work is covered by a 30-day labour and 1-year parts guarantee. 

    Signs that your boiler may need a repair

    Boilers can break down from time to time, and when they do, it is important to get them fixed as soon as possible. It is recommended that you replace your boiler every ten years as boilers become less efficient after this time

    If you notice any of these signs, we will diagnose and repair your boiler. Regular boiler servicing and timely repairs can help extend the life of your boiler and ensure it operates efficiently.

    If you hear banging, whistling, or gurgling sounds, it could indicate issues like air buildup, kettling (overheating), or a faulty pump

    If your radiators are not heating evenly or you experience fluctuating hot water temperatures, it might be a sign of a problem

    If your boiler turns on and off more frequently than usual, it could be due to a malfunctioning thermostat or other internal issues

    A sudden spike in your energy bills without a corresponding increase in usage can indicate that your boiler is not operating efficiently

    Any strange smells, especially a metallic or burning odor, can be a sign of a gas leak or other serious issues

    If your boiler fails to start, it could be due to a variety of issues, including electrical problems or a faulty pilot light

    BOILER REPAIR PROCESS

    Boiler repair involves several steps to ensure the system is functioning safely and efficiently. Here’s a general outline of the process

    Initial Contact & Booking

    We gather information about the boiler make/model, reported symptoms, and any error codes.

    An appointment is scheduled at a time convenient for the customer.

    On-Site Inspection & Diagnosis

    A Gas Safe registered engineer conducts a full assessment of the boiler and heating system.

    This includes visual checks, operational testing, and system pressure readings.

    If applicable, fault codes are reviewed and diagnostic tools may be used.

    Problem Identification

    The root cause of the issue is determined - common faults include:

    - Faulty components (e.g. diverter valve, PCB, fan, sensors)

    - Pressure loss or leaks

    - Ignition issues or no hot water/heat

    - The customer is updated on findings and advised on the required repair.

    Quotation & Customer Approval

    A fixed-price quote is provided covering labour and any required parts.

    No work proceeds without customer consent.

    In urgent cases, parts may be sourced same-day or carried in-stock on the van.

    Repair Work

    Faulty components are removed and replaced.

    System is refilled, repressurised, and tested thoroughly.

    Safety checks are carried out to confirm gas tightness and combustion levels where applicable.

    System Testing & Confirmation

    The heating and hot water are tested to ensure the issue is fully resolved.

    Controls and thermostats are checked for correct operation.

    Customer Handover & Advice

    The repair is explained clearly to the customer.

    Any maintenance tips or potential future issues are highlighted.

    A digital or paper invoice is issued, including details of the repair and warranty.

    Aftercare & Warranty

    All works and parts typically carry a 12-month warranty.

    We remain available for follow-up support if needed.

    Service Options and Pricing

    If you have any questions about which service to book or if your needs do not fit into the listed options, please do not hesitate to contact us. Our team is here to help you choose the right service for your property.

    Includes call out fee, minor repairs and up to 30 minutes of diagnosis and repair labour
    £75
    Includes call out fee, minor repairs and up to 60 minutes of diagnosis and repair labour
    £100
    Includes certified boiler service or landlord gas safety certificate and 30 minutes diagnosis and repair labour
    £150

    How to book an inspection

    Call Us on 020 8686 2132

    OR
    Click “Book Online Now” Link

    1. Choose your preferred service.
    2. Complete the booking form with your details.
    3. Select a date and time for our engineer to visit.
      If you would prefer us to contact you to arrange a time please click “Arrange a time later” link during the booking process.
    4. We do not charge any upfront fees. Payment will be taken after completion of work.

    Need a new Boiler or a boiler service?

    Are you in need of reliable plumbers to solve your plumbing and heating needs?

    Our team of experienced plumbers in South London will take on any job with superior skill and ease — all while providing exceptional customer service that is tailored to your specific needs.

    Gas Boiler Repair

    Frequently Asked Questions

    What if parts are needed?

    With high demand and ongoing boiler maintenance queries, We keep our vans well stocked with common parts. If parts are needed, a deal can be offered to you with parts included.

    Do I need to wait in all day?

    We can provide you with an accurate window so there is no need to wait in all day.

    Is there a guarantee?

    We give a 12-month guarantee on our workmanship and parts. Our engineers are all Gas Safe Registered and we do offer a support plan for added peace of mind.

    Will my boiler be fixed during the first visit?

    In numerous instances, our Gas Safe registered engineers can complete the boiler repair and have iton the initial visit. Nevertheless, if specialised parts are needed or if the repair is intricate, it might require extra time.

    On occasion, some boilers might be beyond economical repair, such as the heat exchanger has split and is is not cost-effective, in which case our engineers will provide guidance on the most suitable course of action . We aim to keep you well-informed throughout the entire process.

    The time needed for a boiler repair can vary based on the specific issue. Minor boiler repairs can often be fix within an hour, but more complicated problems may require additional time we will inform you and offer you a fixed price repair on your gas boiler.

    Is it more cost-effective to repair my old boiler or replace it with a brand new one?

    Whether to repair or replace your boiler depends on factors like the age of the boiler, the extent of the gas and water leakages, and its overall efficiency. In some cases,repairing an older boiler can be cost effective, but if the unit is nearing the end of its lifespan or has significant issues or likely to need future repairs, replacing it with a brand new energy efficiency boiler may be a better long-term investment with long manufacturers warranties. Consult with a professional to make an informed decision to save both time and money.

    Do you provide emergency boiler repair services?

    Absolutely, our commitment is to address all emergency boiler and central heating repair requests on the same day that we receive your inquiry. Making sure you have hot water and your central heating is running smoothly. Our aim is to provide our customers with prompt and reliable service to ensure your comfort and safety. Our Gas Safe registered engineer will have you back up and running in no time.
    Our fixed price repairs prices include all parts and labour (conditions apply) and are backed by a 12 month guarantee

    In instances where immediate service is not feasible, we guarantee to offer you the earliest available appointment.

    Which brands of boilers do you repair?

    We’re fully equipped to repair all leading brands of asll gas boilers such as Vaillant, Worcester, Idea, Baxi, Rehema, Potterton, etc, we also offer boiler service plans and new boiler installation work.

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      What our clients think

      We love our clients and they love our work. Our team is experienced in both residential and commercial projects.

      Areas we operate

      Balham  SW12
      Battersea SW11

      Brixton SW2, SW9

      Clapham SW4, SW8
      Chelsea SW3, SW5, SW10
      Croydon CR0, CR2
      Dulwich SE21, SE22
      Earlsfield SW18
      Fulham SW6
      Hammersmith W6
      Herne Hill SE24
      Kennington SE11
      Kensington W8, W14
      Mitcham CR4
      Putney SW15
      Southwark SE1, SE11
      Streatham SW16
      Tooting SW17

      Wandsworth SW18

      Wimbledon SW19, SW20
      Westminster SW1

      Brands we work with