Trusted Brands
Boilers We Install & Repair
Accredited installers for the UK's leading boiler manufacturers
Whether you need a brand new boiler installed, an urgent repair, or your annual service — SP Heating's Gas Safe registered engineers deliver expert workmanship across South London and Surrey. We're accredited installers for Baxi, Vaillant, and Worcester Bosch, giving you access to the UK's most trusted heating brands with extended manufacturer warranties.
From emergency breakdowns to full heating system upgrades, we provide transparent, fixed-price quotes with no hidden charges. Every installation is completed to the highest safety standards and registered with Gas Safe.
From a simple repair to a complete heating system overhaul — we've got you covered.
Upgrade to a modern, energy-efficient boiler from leading manufacturers. We'll help you choose the right model for your property size, hot water demand, and budget. Every installation includes full commissioning, Gas Safe registration, and a manufacturer warranty of up to 12 years.
Boiler playing up? From intermittent faults and error codes to leaks and pressure issues, our engineers diagnose and fix problems quickly. We carry common replacement parts in our vans for same-day repairs wherever possible, minimising your downtime.
An annual service keeps your boiler running safely and efficiently, and is required to maintain your manufacturer's warranty. Our engineers carry out a comprehensive inspection, clean key components, test for gas leaks, and check flue emissions.
No heating or hot water? We know how stressful that can be — especially in winter. Our emergency engineers are available 24 hours a day, 7 days a week. We aim to reach you within hours, not days, and we'll always give you an honest assessment before starting work.
If your boiler is over 10 years old, frequently breaking down, or costing too much to run, a replacement could save you hundreds per year on energy bills. We'll recommend the most suitable and cost-effective option, handle the full swap, and dispose of your old unit responsibly.
Sludge, rust and debris build up in your heating system over time, causing cold spots on radiators, noisy pipes, and reduced efficiency. A power flush clears the entire system, restoring full circulation and improving heat output — often recommended before or alongside a new boiler installation.
From your first call to a fully working boiler — here's what to expect.
Call us, send a WhatsApp, or fill in our online form. Tell us about your boiler issue or what you're looking for, and we'll arrange a convenient time to visit.
A Gas Safe engineer visits your property, diagnoses the issue or surveys for installation, and provides a clear, fixed-price quote — no surprises, no hidden fees.
We complete the work to the highest standard, test everything thoroughly, register with Gas Safe, and leave your home clean and tidy. Simple.
Accredited installers for the UK's leading boiler manufacturers
Answers to the most common questions about boiler installation, repair and servicing.
A new boiler installation typically costs between £1,800 and £4,500 depending on the boiler type, brand, and complexity of the installation. Combi boilers are generally the most affordable option for smaller properties. We provide free, no-obligation quotes tailored to your home — just call or fill in our enquiry form.
A straightforward like-for-like boiler replacement typically takes 1 day. If we need to move the boiler location, upgrade pipework, or install a completely new central heating system, it can take 2–3 days. We'll always give you a clear timeline before any work begins.
Yes. All new boiler installations come with the manufacturer's warranty, which ranges from 5 to 12 years depending on the brand and model. As accredited installers for Baxi, Vaillant, and Worcester Bosch, we can offer extended warranty periods on qualifying installations — something you won't always get from non-accredited installers.
Common signs include:
If you're experiencing any of these, we can assess whether a repair or replacement makes more sense for you.
Combi boiler — Heats water on demand directly from the mains. No separate hot water cylinder or cold water tank needed. Ideal for smaller homes and flats with 1–2 bathrooms.
System boiler — Works with a separate hot water cylinder (but no cold water tank in the loft). Better for larger homes with multiple bathrooms where you need hot water at several taps simultaneously.
Conventional boiler — Uses both a hot water cylinder and a cold water storage tank. Best suited for older properties with existing pipework, or homes with very high hot water demand.
Not sure which is right for you? We'll help you choose during a free home survey.
We cover all of South London and Surrey, including Croydon, Sutton, Kingston, Epsom, Brixton, Clapham, Streatham, Tooting, Bromley, Lewisham, and many more areas. If you're unsure, just give us a call on 0333 404 7642 and we'll confirm availability in your postcode.
We cover all of South London & Surrey. Find your local engineer:
Whether it's an emergency repair, annual service, or a brand new installation — call us now for a free, no-obligation quote.