Boiler Losing Pressure? Here's Why It Happens and What to Do Next
Boiler losing pressure in your Sussex home? We explain the most common causes, what you can fix yourself, and when it's time for a new boiler installation.
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Getting a new boiler fitted is simple. Here's what to expect.
Fill in our quick form or give us a call. We'll provide a guide price followed by a Guaranteed Fixed Price - no hidden surprises.
Pick from our packages. We'll help you find the right fit for your home.
Our Gas Safe engineers fit your new boiler - usually in just one day, with minimal disruption.
Relax with a brand new, energy-efficient boiler backed by a warranty of up to 12 years.
Whether you need a brand new boiler or a replacement for your old one, we've got you covered.
Sussex homeowners trust us for honest advice, quality workmanship, and a service that puts you first.
Every engineer is Gas Safe registered (No. 966527) and regularly assessed. Your safety is our top priority. Verify our registration →
Based in Seaford, we serve homeowners across Brighton, Eastbourne, Crawley, Worthing, Horsham, and surrounding areas. We know Sussex homes inside out.
Don't just take our word for it — we're rated 9.93/10 from 38 verified reviews on Checkatrade.
After a quick survey, the price we quote is the price you pay. No call-out charges, no hidden extras, no pressure. Ever.
Every boiler we install is backed by a manufacturer warranty of up to 12 years. That's over a decade of zero repair bills and total peace of mind.
Most installations are completed in a single day with minimal disruption. We'll have your heating back up and running before you know it.
Choose the package that suits your home and budget. All prices are fixed (subject to survey) - what we quote is what you pay.
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Like-for-like swap, straightforward installs
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Homeowners who want reliability + best value
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The "do it properly once" customer
Serving homeowners across East Sussex and West Sussex.
Brighton, Kemptown, Hanover, Rottingdean, Saltdean, Whitehawk, Moulsecoomb
View Brighton →Hove, Aldrington, Portslade, West Blatchington, Hangleton
View Hove →Eastbourne, Meads, Old Town, Langney, Hampden Park, Willingdon, Polegate
View Eastbourne →Hastings, St Leonards-on-Sea, Ore, Hollington, Silverhill, Conquest
View Hastings →Worthing, Lancing, Sompting, Findon, Broadwater, Goring-by-Sea, Durrington
View Worthing →View all 10+ locations we serve across Sussex
See all areas →Expert tips on boilers, heating, and energy efficiency from our Sussex engineers.
Boiler losing pressure in your Sussex home? We explain the most common causes, what you can fix yourself, and when it's time for a new boiler installation.
Read more →Wondering how long a boiler installation takes in Sussex? Most jobs are done in a day. Find out what affects the timeline and what to expect on the day.
Read more →Not sure what size boiler you need? Our Sussex heating experts explain combi, system and regular boiler sizing for every home — with real costs for 2025.
Read more →Real reviews from real customers on Checkatrade.
"Great job done. Fitted new pressure sensor and purged the boiler. Very thorough."
"Tim was punctual, personable, competent and I wouldn't hesitate to recommend his services."
"Polite and responsive from first contact. Most price competitive quote. Efficient and kind."
"Went over and above helping with a central heating problem. Professional and knowledgeable."
"Excellent. Managed to fit me in when I took the day off work. Price was exactly as quoted."
"Extremely reasonable quote and work was carried out promptly, professionally and thoroughly."
"Tim was great, very professional, turned up on time and knew exactly what he was doing."
Our boiler installations start from £1,700 +VAT for the Silver package, which includes a new entry-level A-rated boiler, professional Gas Safe installation, removal of your old boiler, and a manufacturer warranty. Our most popular Gold package starts from £2,150 +VAT and includes a system cleanse, premium magnetic filter, and smart thermostat. All our installations begin with a quick guide price, followed by a free home survey to provide a Guaranteed Fixed Price. No hidden costs - the price we quote is the price you pay.
Yes, absolutely. Every Platinum Boilers engineer is Gas Safe registered, fully qualified, and regularly assessed to ensure they meet the highest industry standards. You can verify our registration at any time through the Gas Safe Register. Your safety is our top priority.
We cover all of Sussex, including Brighton, Hove, Eastbourne, Hastings, Lewes, Worthing, Crawley, Bexhill, Peacehaven, and Seaford, as well as surrounding towns and villages. If you're unsure whether we cover your area, please give us a call - we're always happy to help.
Of course. Our engineers will assess your property - including the number of bedrooms, bathrooms, and your hot water usage patterns - and recommend the most suitable boiler. We'll explain the options clearly and give you all the information you need to make the right decision. There's never any pressure to buy.
We're currently finalising our finance options and plan to offer 0% APR finance in the near future. In the meantime, we accept payment by bank transfer, debit card, and credit card. Please ask about our current payment options when you request your quote.
Simply fill in our online estimate form, call us on 07711 120 788, or email hello@platinumboilers.co.uk. We'll give you an initial guide price, then arrange a convenient time to survey your property (this is free and no obligation) to provide you with a Guaranteed Fixed Price quote. Once you're happy, we'll schedule the installation at a time that suits you.
We install boilers from leading manufacturers including Worcester Bosch, Glow-worm, Ideal, Vaillant, and Alpha. All our boilers are A-rated for energy efficiency. We'll recommend the best brand and model for your specific requirements and budget.
Yes, we do. We're fully qualified to install, service, and repair LPG (liquefied petroleum gas) boilers, which are ideal for properties that aren't connected to the mains gas network. Many homes across rural Sussex rely on LPG, and we regularly carry out installations in these areas. We supply LPG-compatible models from leading manufacturers including Worcester Bosch, Vaillant, and Ideal, all rated A for energy efficiency. Our engineers hold the specific LPG qualifications required on top of their Gas Safe registration, so you can be confident the work is carried out safely and to the highest standard. Whether you're replacing an old LPG boiler or converting from oil, get in touch and we'll talk you through your options.
Not necessarily, but it's worth having it assessed. Most boilers are designed to last 10–15 years with annual servicing. After 15 years, efficiency drops noticeably — older models may only be 60–70% efficient compared to 90%+ for a new A-rated boiler. If yours is still working but costing more to run or needing frequent repairs, replacing it usually makes better financial sense over the medium term. We're happy to provide an honest assessment at no cost.
Switching from an old, inefficient boiler to a modern A-rated model can save a typical Sussex household up to £300–£580 per year on gas bills, depending on the age and condition of the existing boiler. Homes with older G-rated boilers (below 70% efficiency) see the biggest savings. Over the 10–15 year lifespan of a new boiler, those savings can more than cover the cost of the installation.