Keeps your warranty alive
A documented annual service is the condition attached to long manufacturer warranties, including the up-to-10-year Vaillant cover we can offer as an Advanced Installer.
Boiler servicing · Annual cover
Annual Boiler ServicingAcross Braintree and ColchesterThat Protects Your Warranty
A documented annual service by a Gas Safe registered engineer keeps your manufacturer's warranty valid, confirms the appliance is burning safely, and finds the small faults in September that would otherwise become a breakdown in January.
Gas Safe 638860 · Combustion analysis included · 10/10 on Checkatrade from 27 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
What an Annual BoilerService Actually Covers
A boiler service is a safety and performance inspection, not a quick glance and a sticker. The appliance is checked for correct operation, the case is opened, components are inspected and cleaned as required, seals and the flue are checked, and combustion is measured with a flue gas analyser to confirm the boiler is burning within the manufacturer's specification.
The service also records the result. That record is what keeps a manufacturer's warranty valid, including the up-to-10-year Vaillant warranty available through us as a Vaillant Advanced Installer, and it is the documentation an insurer or a future buyer will ask to see.
Rusupo Heating and Plumbing Ltd is Gas Safe registered under registration 638860, covering domestic gas pipework, boilers, vented and unvented cylinders, water heaters, cookers, range cookers, fires and combustion analysis, so a service is not limited to the boiler in isolation.
Why professional help matters
- Servicing a gas appliance is legally restricted to Gas Safe registered engineers, registration 638860 in our case.
- Combustion can only be verified with a flue gas analyser. Carbon monoxide has no smell and no colour; a visual check proves nothing.
- Manufacturer warranties require a documented annual service carried out by a registered engineer. No record, no cover.
- A service is the point at which small faults, a weeping seal, a tired expansion vessel, an early ignition problem, are caught while they are still cheap.
Who this is for
- Anyone with a boiler under manufacturer warranty, where annual servicing is a condition of cover
- Homeowners who want the boiler checked before the heating season starts
- Landlords combining a service with their annual gas safety certificate
- Households who have just moved in and have no service history for the appliance
- Owners of older boilers who want early warning of a failing component
When it is needed
- Annually, at the same point each year, ideally in spring or summer before demand peaks
- Immediately after moving into a property with no documented service history
- Before a warranty anniversary, so the record is in place and the cover is not lost
- When the boiler is making new noises, cycling oddly, or the pressure is wandering
- Alongside a CP12 gas safety inspection for a rented property
The cost of waiting
What Skipping the ServiceActually Costs You
The first cost is the warranty. Long manufacturer warranties are conditional, and the condition almost always includes an annual service by a registered engineer with the record kept. One missed year is the most common reason a household with a ten-year warranty discovers, at year four, that they no longer have one.
The second cost is the breakdown. Boilers rarely fail without warning; they fail after a season of running with a partly blocked condensate, a weak expansion vessel or a fouled electrode. A service catches these while the house is warm and an engineer is easy to book. Missing it means finding out during the first hard frost, when everyone else is calling too.
The third cost is the one you cannot see. Combustion problems, flue deterioration and blocked ventilation produce carbon monoxide. Annual combustion analysis exists precisely because this failure mode gives no sensory warning.
Common mistakes we see
- Assuming a boiler that appears to work does not need checking
- Letting the service lapse and quietly invalidating a long manufacturer's warranty
- Booking servicing in November, when every engineer in Essex is already on breakdowns
- Accepting a 'service' with no combustion analysis and no written record
- Ignoring a magnetic filter that has never been emptied since the boiler was installed
Our process
How We HandleBoiler Servicing
- 01
Visual and operational inspection
Appliance checked in operation, along with pressures, controls, ventilation, flue terminal position and condition, and the condensate route.
- 02
Case off and component check
Burner, heat exchanger, electrodes, seals and internal components inspected, with cleaning carried out where the manufacturer's schedule requires it.
- 03
Combustion analysis
Flue gas analyser used to measure combustion against manufacturer specification, confirming the appliance is burning correctly and safely.
- 04
Safety and system checks
Gas tightness and operating pressure verified, safety devices tested, and system-side items such as the filter and expansion vessel assessed.
- 05
Report, record and next steps
Findings explained in plain terms, the service documented for your warranty records, and any recommended remedial work quoted separately with no obligation.
What you get
The Practical Benefitsof Getting This Right
Catches faults early
Weeping seals, tired expansion vessels and early ignition faults found in summer are inexpensive; the same faults found in January are a breakdown.
Verified safe combustion
Flue gas analysis measures what your senses cannot. It is the only reliable check that the appliance is burning correctly.
Better efficiency
A clean, correctly commissioned boiler on a maintained system uses less gas to deliver the same heat than a neglected one.
One engineer, full scope
Servicing, gas safety certification and any resulting repair handled by the same Gas Safe registered engineer rather than three separate visits.
Guaranteed and insured
6-month workmanship guarantee on remedial work, £2,000,000 public liability insurance, and a 10/10 Checkatrade record since 2019.
In detail
Boiler ServicingExplained Properly
What is inspected during the service
The boiler is run and observed first, because a number of faults only show under load. We then check operating and standing gas pressure, system pressure, the expansion vessel, the condensate route, and the position and condition of the flue terminal and its seals.
With the case off, the combustion chamber, burner, heat exchanger, electrodes and internal seals are inspected. Cleaning is carried out where the manufacturer's schedule calls for it or where deposits are found. Components showing early wear are flagged before they fail.
Combustion analysis finishes the job. The analyser measures the flue gases and confirms whether the appliance is inside the manufacturer's specification. If it is not, that is a fault to be investigated, not a number to be written down and ignored.
Servicing and the wider heating system
A boiler in good order can still be forced to work hard by the system around it. During a service we look at the magnetic filter, the state of the system water and inhibitor levels, and whether radiators are heating evenly. Sludge is the underlying cause behind a very large proportion of the repairs we attend.
Where the system is showing signs of contamination, the correct answer is either a chemical clean or a powerflush rather than an annual cycle of component replacement. We will explain which and why, and quote it separately so you can decide.
Controls are also reviewed: thermostat behaviour, programmer settings and flow temperature. Small changes here often produce a real reduction in gas use, particularly on condensing boilers that have been left running at a high flow temperature since installation.
Servicing, CP12 certificates and landlords
A gas safety inspection (CP12) and a boiler service are related but not identical. The CP12 confirms that the appliances and installation are safe at the date of inspection and is a legal obligation for landlords; a service maintains the appliance itself and satisfies the manufacturer's warranty conditions.
For landlords we can carry out both at the same visit, which means one appointment to arrange with the tenant rather than two. Documentation is provided for your compliance records.
Servicing across Essex and Suffolk
We service boilers throughout Braintree, Colchester, Kelvedon, Tiptree, Feering, Halstead, Sudbury, Sible Hedingham, Coggeshall and the surrounding villages. Booking in spring or summer is easier for everyone and gets your warranty record in place well before the heating season.
If your boiler was installed by us, servicing keeps that installation's warranty intact, and on our current Summer Boiler Deal, the first year's service is included free with every boiler installation.
Local coverage
Areas we cover for boiler servicing
- Boiler Servicing in Braintree
- Boiler Servicing in Colchester
- Boiler Servicing in Kelvedon
- Boiler Servicing in Tiptree
- Boiler Servicing in Feering
- Boiler Servicing in Halstead
- Boiler Servicing in Sudbury
- Boiler Servicing in Sible Hedingham
- Boiler Servicing in Coggeshall
Based in Earls Colne, Colchester. See the full service area map or read verified customer reviews.
Questions
Boiler ServicingQuestions Answered
Something not covered here? Call 07984 042373: the 24-hour line is usually answered personally by Matt.
How much is a boiler service?
Servicing is quoted as a fixed price for your appliance and property before we attend, so there is no hourly meter running. Ask for a quote by phone or through the form and you will have a figure to work with.
How often should a boiler be serviced?
Once a year. That is the interval manufacturers require to keep a warranty valid, and it is the interval that reliably catches wear before it turns into a breakdown.
How long does a boiler service take?
A standard domestic service is normally under an hour where no faults are found. If something needs investigation, we will tell you what we have found and quote any remedial work separately rather than carrying it out unannounced.
Will servicing keep my 10-year warranty valid?
Yes, that is precisely its purpose. Manufacturer warranties, including the up-to-10-year cover available on Vaillant installations through us as an Advanced Installer, require an annual service by a Gas Safe registered engineer with the record kept.
What is the difference between a service and a gas safety certificate?
A CP12 gas safety certificate confirms the installation and appliances are safe at the date of inspection and is a landlord's legal requirement. A service maintains the appliance and satisfies the manufacturer's warranty conditions. We can carry out both in one visit.
When is the best time of year to book?
Spring and summer. Availability is better, you are not competing with breakdown calls, and any remedial work is done long before you need the heating.
Do you service boilers you did not install?
Yes. Our Gas Safe registration 638860 covers domestic boilers, pipework, cylinders, water heaters, cookers, range cookers, fires and combustion analysis, whoever installed them.
What happens if you find a fault?
We explain it plainly, tell you whether it is urgent or something to watch, and give you a fixed price for the repair. Nothing chargeable happens without your agreement, and any repair work carries our 6-month workmanship guarantee.
Do you service boilers in Braintree and Colchester?
Yes, along with Kelvedon, Tiptree, Feering, Halstead, Sudbury, Sible Hedingham, Coggeshall and the surrounding Essex and Suffolk area.
Is the first service free on a new boiler?
On our current Summer Boiler Deal, every new boiler installation includes the first year's service free, along with a free Hive smart thermostat worth £129.99.
Next step
Book Your Annual ServiceBefore the Heating Season
Gas Safe registered servicing with full combustion analysis, documented for your warranty. Book in summer and avoid the winter queue entirely.
Call 07984 042373- Gas Safe registered: reg. 638860
- £2,000,000 public liability insurance
- 6-month workmanship guarantee
- 10/10 on Checkatrade from 27 verified reviews