Fire sprinkler servicing and maintenance in Kettering
Fire sprinkler servicing tends to become urgent when an insurer, a fire risk assessment or a new managing agent asks for the service record.
- Four years of active trading, 100+ projects completed
- ISO 9001, the certification insurers look for
- Free survey, fixed price in writing, no travel charge
Our own jobs. Swipe, or tap to enlarge.
Fire sprinkler servicing under BS EN 12845 is a routine rather than a single annual visit: weekly gauge and alarm checks, monthly and quarterly routines including flow switch proving, six-monthly checks, and a full annual service by a competent contractor. Your own team can hold the weekly checks. The logbook has to be complete either way. Sentry Sprinkler Protection carries out fire sprinkler servicing across England from its base in Kettering, ISO 9001 certified.
Sprinkler servicing, on our jobs
10 photographs of this exact work, from the owner's own sites. Tap any of them.
- SurveyFree, and we walk the building
- Fixed priceIn writing, with the standard named
- First visitDone, recorded and certificated
From first call to certificate
Four steps, the same on every job.
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01Free survey
We look at the building and its records, and tell you what it is due.
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02Fixed price in writing
Every item priced line by line. No survey fee, nothing added afterwards.
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03The work, on your dates
Isolation agreed before anyone arrives, kept as short as the job takes.
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04Certificate and record
A certificate and a photographed defect list, ready for your insurer.
- Start
Book the free survey
Tell us the building. We will tell you what it is due.
Book a free survey
Covered on every visit
BS EN 12845
- Weekly, monthly, quarterly, six-monthly and annual routines
- Quarterly flow switch and alarm proving
- Valve set, gauge and installation control inspection
- Head condition, clearance and spare stock checks
When it is due
- Weekly gauge and alarm check
- Quarterly flow switch test
- Annual service
The duty sits with whoever controls the premises under the Fire Safety Order 2005. It can be delegated as work, not as responsibility, which is why the certificate matters as much as the visit. How compliance works
What actually goes wrong with a sprinkler system
A sprinkler system fails quietly. Nothing on site changes, nothing alarms, and the building looks exactly as protected as it did. These are the four we find most.
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A valve left shut after somebody else's work
The commonest serious finding, and the most alarming, because the building is completely unprotected and nothing indicates it. A trade isolates a zone to work on a ceiling, the job finishes, and the valve is never reopened. Monitored valves signal it. Unmonitored ones do not.
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The flow switch does not prove
The quarterly flow switch test exists because a system that operates and never signals is an unattended fire. The switch, the wiring and the route to wherever the alarm actually goes all have to be proved, and the last of those is the part most often untested.
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Heads painted, obstructed or the wrong rating
A painted head or one buried behind stock will not operate as designed, and stock stacked too close to a head blocks the spray pattern it needs to develop. The rating matters too: a head chosen for an office will operate too early above a process that runs warm.
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Corrosion and sediment in older pipework
Older steel systems silt up, and internal corrosion narrows the bore. The pressure at the valve set can look correct while the flow at the remote head is not what the calculation assumed. This is the one that argues for a staged replacement rather than another year of servicing.
Specific jobs
- Sprinkler alarm valve repair Valve sets that pass water, leak or will not reset, stripped, resealed and proved on flow.
- Sprinkler servicing for housing associations Residential and mixed-use systems serviced on one schedule, with records ready for audit.
- Sprinkler maintenance for facilities management companies BS EN 12845 servicing, riser testing and repairs across your client sites.
- Sprinkler servicing for student accommodation BS 9251 servicing planned around the academic year, every block on record.
- Sprinkler remedial works Defects from services, insurer surveys and risk assessments, priced, fixed and recorded.
- Sprinkler servicing for hotels Servicing planned around guests, with short isolations and a record for every visit.
- Sprinkler servicing for schools Isolations booked into the holidays, term-time checks, and one record for the trust.
- Sprinkler servicing for care homes Alarm handling agreed first, short isolations, and a record with no gaps.
- Fire sprinkler maintenance in Birmingham Residential towers, offices, hotels and industrial sites, inspected, serviced and repaired.
- Commercial sprinkler maintenance in London Offices, hotels and car parks on a fixed BS EN 12845 schedule.
- Fire sprinkler inspection A written verdict on an existing system, with every defect photographed and priced.
Free survey · fixed price in writing
Tell us what you need. We will tell you what it takes.
Four quick taps and your details. A free survey and a fixed price in writing, with no survey fee and no obligation.
Mon to Fri, 7am to 5pm. Emergencies any hour.
Request received
We’ve got it from here.
Step 1 of 5 is done. Here is how the rest goes.
- Request sent Done
- 2 We call you Next
- 3 Free survey
- 4 Fixed price
- 5 Work done
Questions we get asked
What does BS EN 12845 actually require?
Weekly checks of water and air pressure gauges plus an alarm test, monthly and quarterly routines including flow switch proving, six-monthly checks, and a full annual service by a competent contractor.
Can our own maintenance team do the weekly checks?
Yes, and most sites do. We will set the routine up, show your team what to record, and cover the quarterly and annual work that needs a specialist. The logbook still has to be complete either way.
Our system has never been serviced. Where do we start?
With a survey. We establish what is installed, what condition it is in and what the hazard classification should be, then put a schedule against it. Older systems often need remedial work before a service means anything.
Does servicing affect our insurance?
It can. Insurers rate premises with a maintained sprinkler system differently, and they will ask for the service record when they do.
What actually happens during the annual visit?
The control valve sets are stripped out, cleaned and reassembled, with new gaskets where the schedule calls for them. The alarm valves are proved on flow and function, the pumps get a full service including oil, filters, alignment and electrical checks, the tank infill valve is checked and lubricated, and an end of line test is carried out.
How long will the system be out of service?
For part of the visit, not all of it, and we work to the shortest isolation we can. We tell you before we start, we ask you to let your insurer know the system will be inoperative for that period, and the engineer confirms it is back to normal operating condition before leaving.
We have changed what we store. Does the service pick that up?
Not on its own, and this is the gap worth knowing about. A service checks the system against how it was designed. Change the goods, the racking or the storage height and the hazard classification may have moved, which is a design question rather than a maintenance one. Tell us and we will review it.
Is this the same as a commercial sprinkler PPM contract?
Yes. Planned preventive maintenance (PPM) for a commercial sprinkler system is the BS EN 12845 routine on this page: weekly checks your team can hold, then the quarterly, half-yearly and annual commercial sprinkler maintenance we carry out on an agreed schedule.
Can you take over a contract from another company mid-year?
Yes, and it happens often. What we need is the existing records so we know where in the cycle you are. If they are missing or thin we will say so and start a clean record from our first visit rather than sign off work we did not see.
Read more about this
We also cover
Sprinkler servicing for your kind of building
The standard is the same. What changes is the hazard, the design and what an insurer asks to see.
- Warehouses and distribution Racking, storage height and what you keep in it decide the design. Get those wrong and the system is under-designed from day one. Warehouse sprinkler systems for distribution and storage
- Blocks of flats Above 11 metres a new block needs them. Everything after that is the maintenance record, and it is what a managing agent gets asked for. Sprinkler systems for blocks of flats
- Care homes A building full of people who cannot self-evacuate, on a maintenance regime that has to be provable without disrupting them. Care home sprinkler systems
- Schools and colleges The DfE stopped pointing at BB 100 in January 2026. What replaced it sets a height threshold, three building types that always qualify, and a maintenance regime for everything already installed. School sprinkler systems after BB 100
- Offices Multi-let buildings where the landlord holds the common parts and the tenant holds the demise. Most of the trouble is the line between them. Office sprinkler systems in multi-let blocks
- Museums and galleries The objection is always water on the collection. The arithmetic runs the other way, and it is worth seeing why before the decision gets made for you. Museum sprinkler systems for galleries and stores
- Cinemas and theatres Ordinary Hazard Group 4, the highest of the ordinary groups. Most people assume an auditorium is a low risk. The standard does not. Cinema and theatre sprinkler systems
- Hospitals and healthcare Ordinary Hazard Group 1, and the only building type on this list where nobody can be asked to leave. Isolation planning is the whole job. Hospital sprinkler systems for healthcare estates
- Cancer treatment centres A hospital classification wrapped around rooms no general contractor should touch: MRI, radiotherapy bunkers and aseptic pharmacy. Sprinkler systems for cancer treatment centres
- Food processing Three different hazard groups live under this one heading. Which one you are in depends on what you make, not on the size of the shed. Food processing sprinkler systems
- Shopping centres Ordinary Hazard Group 3, and a building whose design changes every time a unit is re-let. The system rarely keeps up on its own. Shopping centre sprinkler systems
All our services The standards we work to Questions and answers
Fire sprinkler servicing, town by town
The towns where this is the work we are asked for most. Each page covers the buildings there and what the journey means for a visit.
- Fire sprinkler servicing in Kettering NN14 · our base
- Fire sprinkler servicing in Rushden NN10 · 9 miles
- Fire sprinkler servicing in Bedford MK40 · 21 miles
- Fire sprinkler servicing in Rugby CV21 · 23 miles
- Fire sprinkler servicing in Leicester LE1 · 24 miles
- Fire sprinkler servicing in Peterborough PE1 · 24 miles
- Fire sprinkler servicing in Milton Keynes MK1 · 24 miles
- Fire sprinkler servicing in Coventry CV1 · 33 miles
The published documents behind this page
Every interval and threshold on this page comes from one of these. Links go to the publisher, not to a copy of the document.
- BS EN 12845Fixed firefighting systems. Automatic sprinkler systems. Design, installation and maintenance
The standard commercial and industrial sprinkler systems are designed, installed and maintained to. It sets the weekly, monthly, quarterly and annual routines.
BSI
- LPC RulesLPC Rules for Automatic Sprinkler Installations, incorporating BS EN 12845
The insurer-facing ruleset that sits alongside BS EN 12845. Part 1 is the standard itself; the technical bulletins in Part 2 are what an insurer means by property protection.
Fire Protection Association
British Standards are copyright documents and most are bought rather than read free. We hold the ones we work to. If you need to know what one of them says about your building, ask us rather than buying it.
See what a service covers, in 3D
Click any part to see what it does and how often it is tested, or start a fire and watch every part play its role.
Illustration only. Not a design.
- The bulb over the fire bursts at 68°C. Only that head opens.
- Water moves through the valve set: the gong rings and the flow switch raises the alarm.
- The pressure drops and the fire pump starts.
- Water reaches the open head and the spray holds the fire back.
- The fire is held in check until the brigade arrives.
- The brigade connects to the riser and takes water to the fire floor.
- With no sprinklers, nothing acts on the fire until the brigade arrives.
Drag to turn it. Ctrl + scroll to zoom. Click any part to see what it is.
Your system
What it needs
- Weekly tank level check, pump start test, alarm motor test, system checks
- Quarterly flow switch and alarm test
- Annual tank inspection and clean, pump performance test under flow, valve set strip, clean and rebuild, full service
Illustration only. This model shows how a fire sprinkler system works. It is not a design for any real building, and the layout, pipe sizes, head spacing, water supply and riser positions in it are not the ones your building would need. Every real system is designed for its building after a survey, to BS EN 12845, BS 9251 or BS 9990.
Certified, and audited on a schedule.
ISO 9001, certified by BRE Global and accredited by UKAS. Somebody independent audits how every job is planned, recorded and signed off, on a schedule.
ISO 9001:2015
Certified by BRE Global, accredited by UKAS
An audited quality management system. It means the way a job is planned, recorded and signed off is itself inspected by somebody independent, on a schedule.
Working to BS EN 12845, BS 9251 and BS 9990. If your insurer or fire risk assessor wants the certificates themselves, ring us and we will send them over.
5.0 on Google
3 reviews, and every one of them five stars.
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Mike C. Weekly maintenance, testing and repair Sentry Sprinkler Protection have recently taken over the weekly maintenance, testing and repair of the […] sprinkler equipment. They are providing a excellent service, good value and they are also very helpful when on site.
5 stars on Google
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Lewis W. Sprinkler installation, warehouse Had them install a full sprinkler system across one of our warehouses, and couldn't be happier. They were professional from start to finish and the on-site team were genuinely friendly to work with. […] Highly recommend if you would need your building or warehouse properly fire-protected.
5 stars on Google
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Sam E. Sprinkler pipework installation Couldn't recommend [Sentry] enough. Their work ethic, consistent efficient install of the pipework and overall approach to a project should be something every sub-contractor strives to mirror. Marius is incredibly approachable and methodical in his work with laydown areas kept very neat and tidy and all work carried out in a safe manner.
5 stars on Google
Tell us the building. We will tell you what it is due.
No survey fee to find out where you stand. Describe the site and we will tell you which intervals apply and what the visit involves.
Request received
We’ve got it from here.
Step 1 of 5 is done. Here is how the rest goes.
- Request sent Done
- 2 We call you Next
- 3 Free survey
- 4 Fixed price
- 5 Work done