Up to 10 years' warranty
As a Vaillant Advanced Installer we can offer up to a 10-year manufacturer's warranty on new Vaillant installations, cover that is only available through accredited installers.
Gas Safe Reg. 638860|24-hour emergency cover, Essex & Suffolk
Boiler installations · Essex & Suffolk
A correctly sized boiler, fitted and certified by one Gas Safe engineer, with up to a 10-year manufacturer's warranty on Vaillant and a fixed price agreed before any work starts, so you know the cost, the timescale and the warranty position before you commit.
Vaillant Advanced Installer · Gas Safe 638860 · 10/10 on Checkatrade from 27 verified reviews
8 years in business
Eight years of gas and plumbing work
Gas Safe 638860
Full domestic scope
10/10 on Checkatrade
27 verified reviews
£2m public liability
Fully insured
6-month guarantee
On all workmanship
Service overview
A boiler installation is far more than swapping one appliance for another. It is a survey of how your home uses heat and hot water, a decision on the right boiler type and output, the gas supply and flue work that makes it safe, the system cleaning that protects it, and the commissioning and certification that keeps the manufacturer's warranty valid. Rusupo Heating and Plumbing Ltd handles all of that with one Gas Safe registered engineer, Matt Anderson, rather than splitting the job between a salesperson and a fitter you have never spoken to.
As a Vaillant Advanced Installer, we can offer up to a 10-year manufacturer's warranty on new Vaillant boiler installations. That status is granted to installers by the manufacturer, and it matters to you in a practical way: the longest warranty terms are only available through accredited installers, and they only stay valid if the boiler is installed and commissioned to the manufacturer's instructions and serviced annually. Every installation also carries our own 6-month workmanship guarantee on top of the manufacturer's cover.
Pricing is fixed and quoted up front. We price on the difficulty of the job rather than an open-ended hourly rate, so the number you are given is the number you pay unless you ask us to change the scope. Quotes are free and typically turned around within 24 hours of looking at the job.
The cost of waiting
An ageing boiler rarely fails politely. It fails on the coldest weekend of the year, when demand for engineers is at its highest and parts merchants are shut. The immediate consequence is no heating and no hot water; the secondary consequence is that you make a rushed decision under pressure, on price alone, with whoever can attend fastest.
There is a cost side too. A boiler that short-cycles, runs at the wrong flow temperature or is fighting a system full of sludge burns more gas for the same warmth. Every winter you keep it, you pay for that inefficiency in fuel while also paying for repeat repairs on parts that are already at the end of their service life.
The safety side is the one that matters most. Poor combustion, a compromised flue or blocked ventilation can produce carbon monoxide, which you cannot see or smell. That is precisely what combustion analysis at commissioning and annual servicing are designed to catch, and it is why gas work is legally restricted to Gas Safe registered engineers.
Our process
We look at the property, the existing system, the gas supply, the flue route and how you actually use heating and hot water, including mains flow rate where a combi is being considered.
You get a free, itemised fixed quote setting out the boiler, controls, cleaning, flue and any pipework changes. Priced on the job, not the clock, with no obligation.
Old appliance removed, new boiler and flue fitted, gas supply checked and upgraded if required, condensate routed correctly, and the system cleaned and dosed with inhibitor.
The boiler is commissioned to the manufacturer's instructions, combustion checked with a flue gas analyser, controls set up and the benchmark record completed so the warranty is valid.
We walk you through the controls, leave the paperwork, register the manufacturer's warranty, and back the work with our 6-month workmanship guarantee.
What you get
As a Vaillant Advanced Installer we can offer up to a 10-year manufacturer's warranty on new Vaillant installations, cover that is only available through accredited installers.
Quoted on the difficulty of the job, not an hourly rate. Free, no obligation, and typically with you within 24 hours of us looking at the work.
Gas Safe registration 638860 covers domestic pipework, boilers, cylinders, water heaters and combustion analysis, so the installation is not sub-let across trades.
A correctly sized, correctly commissioned condensing boiler on a clean system burns less gas for the same warmth than an oversized appliance fighting sludge.
Combustion analysis at commissioning, correct flue and ventilation, and completed documentation: the paperwork insurers and future buyers ask for.
£2,000,000 public liability insurance, a 6-month workmanship guarantee, and a 10/10 Checkatrade rating from 27 verified reviews since 2019.
In detail
A combi boiler heats water on demand and needs no cylinder or tanks, which suits flats and houses with one bathroom and a good incoming mains flow rate. Its weakness is simultaneous demand: run a shower and a kitchen tap together on a weak main and both suffer. That is why we measure flow and pressure at survey rather than assuming.
A system boiler works with an unvented or vented hot water cylinder and is the better answer for homes with two or more bathrooms, or where several people shower in the same half hour. Stored hot water gives you flow rate that a combi cannot match, at the cost of cylinder space and a reheat cycle.
A heat-only (regular) boiler keeps the traditional feed and expansion arrangement and is often used when a property is being upgraded in stages, or where the existing pipework and cylinder are staying. Converting from heat-only to combi or system is entirely possible and something we quote for regularly across Essex and Suffolk.
Installations are made up in copper with appropriate fittings, with isolation valves at the boiler so future servicing and repairs do not mean draining the system. A magnetic system filter is standard practice on our installs: it captures the iron oxide that circulates in every heating system and is the single cheapest way to protect a new heat exchanger.
Flue routing is dictated by the manufacturer's instructions and the position of openings, boundaries and adjacent surfaces. Horizontal, vertical and extended runs are all possible; what matters is that terminal clearances are correct and the flue is accessible for inspection. Condensate must discharge safely, and where it runs externally it is sized and insulated to reduce freezing risk in winter.
Gas supply is checked for pipe size and working pressure at full rate. Many older properties have a supply that was adequate for a small back boiler and is not adequate for a modern high-output combi. Where an upgrade is needed we quote it before the day, not as a surprise mid-installation.
Fitting a new boiler onto an unclean system is one of the fastest ways to void a warranty. Depending on the condition of the existing system we will either chemically clean and flush it or carry out a full powerflush, then dose with inhibitor and fit a filter. Where radiators are heavily sludged, powerflushing is usually the more effective route and we will say so at survey.
Controls are part of the installation, not an afterthought. Correct programming, room thermostat placement and thermostatic radiator valves let the boiler modulate down and condense properly, which is where the efficiency of a modern appliance actually comes from. On our current Summer Boiler Deal, every boiler installation includes a free Hive smart thermostat worth £129.99 plus the first year's service free.
Smart control also gives you remote operation and scheduling, which is genuinely useful for households with irregular hours or for keeping a property just warm enough while it is empty.
We install boilers across Essex and Suffolk, including Braintree, Colchester, Kelvedon, Tiptree, Feering, Halstead, Sudbury, Sible Hedingham and Coggeshall, working from our base at Earls Colne. That is a deliberately tight patch: it is what allows us to get back to warranty and service calls quickly rather than treating installations as one-off transactions.
Property types across this area vary enormously, from period cottages with single-pipe legacy systems and awkward flue routes to modern estates where the constraint is cupboard space rather than pipework. Both are routine work for us, and both are surveyed before a price is given.
Local coverage
Based in Earls Colne, Colchester. See the full service area map or read verified customer reviews.
Recent work
Photographs from real boiler installations jobs completed across Essex and Suffolk. More on the our work page.






Questions
Something not covered here? Call 07984 042373: the 24-hour line is usually answered personally by Matt.
Every installation is quoted individually because the price depends on boiler type and output, whether the system is being converted, the flue route, gas supply size and the state of the existing system. We give a free fixed quote, priced on the difficulty of the job rather than an hourly rate, typically within 24 hours of looking at the work, so you have a firm figure before committing to anything.
A straightforward like-for-like replacement is usually a single-day job. Conversions, heat-only to combi, relocating the boiler, or adding a new flue route, commonly run to two days. Your quote states the expected duration so you can plan around being without heating and hot water for that window.
As a Vaillant Advanced Installer we can offer up to a 10-year manufacturer's warranty on new Vaillant boiler installations. The warranty is registered by us at commissioning, and all our work also carries a 6-month workmanship guarantee.
Yes. Manufacturer warranties are conditional on the boiler being serviced annually by a Gas Safe registered engineer and the service being recorded. Missing a service is the most common reason a long warranty stops being honoured, which is why our Summer Boiler Deal includes the first year's service free.
A correctly sized, annually serviced boiler on a clean, inhibited system that has a magnetic filter fitted should give you many years of reliable service well beyond its warranty period. The variables that shorten that life are system debris, no inhibitor, incorrect sizing and skipped servicing, all of which we address at installation.
Not always. Where the existing system is in reasonable condition, a chemical clean and flush with inhibitor and a magnetic filter is enough. Where radiators are cold at the bottom, the water runs black, or the system has never been treated, a powerflush is the right call and we will tell you at survey rather than after installation.
Yes. We run genuine 24-hour emergency cover across Essex and Suffolk, calls are usually answered personally by Matt, and typical response is within the hour. If the boiler is beyond economical repair, we will tell you honestly and quote the replacement rather than charging you to chase a dead appliance.
In most cases yes: a relocation is a common part of a boiler upgrade, particularly moving from a kitchen to a utility, garage or loft. It affects gas run, flue route, condensate and pipework, so it is surveyed and priced specifically rather than estimated over the phone.
Yes. We cover Braintree, Colchester, Kelvedon, Tiptree, Feering, Halstead, Sudbury, Sible Hedingham, Coggeshall and the surrounding Essex and Suffolk villages from our base in Earls Colne.
Payment is currently by bank transfer, with card payments being introduced shortly. There are no hidden extras: the quoted fixed price is the price unless you ask us to change the scope of the work.
Next step
Free survey, free quote, no obligation and no sales pressure. Gas Safe registered, £2m insured, and backed by a 6-month workmanship guarantee plus up to 10 years' manufacturer warranty on Vaillant.
Call 07984 042373