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Fire sprinkler installation in Kettering

Fire sprinkler installation usually follows a new build, a retrofit, a change of use, or racking that has outgrown its system.

Book a free survey Call 07927 555475
  • 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.

A commercial sprinkler installation is designed hydraulically against the building’s hazard classification, then installed and commissioned to BS EN 12845, or to BS 9251 where the building is residential. The water supply is assessed before anything else, because it is what decides whether the design is achievable at all. Sentry Sprinkler Protection carries out fire sprinkler installation across England from its base in Kettering, ISO 9001 certified.

Design and installation, on our jobs

35 photographs of this exact work, from the owner's own sites. Tap any of them.

The full gallery
  1. SurveyFree, and we walk the building
  2. Fixed priceIn writing, with the standard named
  3. First visitDone, recorded and certificated

or call 07927 555475

From first call to certificate

Four steps, the same on every job.

  1. A sprinkler layout drawing marked up on site during a survey
    01

    Free survey

    We look at the building and its records, and tell you what it is due.

  2. A sprinkler installation drawing open on a laptop on site
    02

    Fixed price in writing

    Every item priced line by line. No survey fee, nothing added afterwards.

  3. An engineer installing sprinkler pipework from a scissor lift
    03

    The work, on your dates

    Isolation agreed before anyone arrives, kept as short as the job takes.

  4. A bank of sprinkler alarm valve sets with gauges in a plant room
    04

    Certificate and record

    A certificate and a photographed defect list, ready for your insurer.

  5. 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 and BS 9251

  • Hydraulic design and hazard classification
  • Installation to BS EN 12845 for commercial and industrial, BS 9251 for residential
  • Commissioning, testing and handover documentation
  • System alterations, extensions and upgrades

When it is due

  1. Designed, installed and commissioned to programme

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 goes wrong on a fire sprinkler system installation

Most of what makes an installation expensive is decided before anybody lifts a pipe. These are the four that cost the most when they are left until site.

  • The hazard classification is taken from the building

    Design density under BS EN 12845 follows the goods and the storage height, not the floor area or the trade on the sign. Classify from the building and the system is either short of what the stock needs or considerably more system than the stock needs. Both are expensive, in opposite directions.

  • The water supply is assumed rather than proven

    A design is only as good as the supply behind it. Where the intention is to feed from the town main, the flow and pressure have to be measured, not taken from a plan. Find out late that the main will not do it and a tank and pump set arrive as a variation, with the plant room already built.

  • The layout is not fixed when the design is done

    Head positions follow racking, mezzanines, ceilings and the plant hung in the roof. Design against a layout that then moves and the work is done twice. We would rather wait for a fixed layout than be paid to redo pipework.

  • The commissioning record is thin

    The system working is not the deliverable. The deliverable is the system working and the evidence that it does: the hydraulic calculations, the as-fitted drawings, the flow test results and the certificate. That is the file an insurer and a building control body ask for, and assembling it afterwards from memory is how handovers stall.

Specific jobs

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.

Call 07927 555475

Mon to Fri, 7am to 5pm. Emergencies any hour.

What do you need?

Pick one. The next questions follow from it.

What kind of building is it?
How tall is the building?
What is happening?
Which part needs looking at?
Where is the project?
When is it due?
How soon do you need us?
Who do we ring back?

Usually the same working day. We never share your details.

No survey fee, no obligation. ISO 9001:2015 certified.

Questions we get asked

What does a sprinkler installation involve?

Hydraulic design against the hazard classification, a water supply assessment, installation to BS EN 12845 for commercial and industrial or BS 9251 for residential, then commissioning, testing and handover documentation.

Do we legally need sprinklers?

It depends on the building. In England, new blocks of flats with a top storey above 11 metres need them. Warehouses, and buildings where insurers or a fire strategy require them, are a separate question. Tell us the building and we will tell you where you stand.

Our racking has changed. Does the system still cover it?

Possibly not. Raising storage height or changing what you store can move the hazard classification and leave the existing system under-designed. It is worth checking before your insurer does.

Can you extend an existing system?

Yes. Extensions, alterations and upgrades to a system already installed are a large part of what we do.

What determines the price more than anything else?

The number of sprinkler heads and how hard the building is to work in. Not floor area, which is only useful as a way of estimating the head count. A small unit packed with heads at high level costs more than a large open shed with a sparse layout at low level.

Will the incoming water main support a new system?

That is the first thing we test, and it is the answer that can stop a project. If the main will not meet the design demand you need a tank and pump set, which is a substantial addition. We would rather tell you that at design stage than after you have committed to a price.

What is not included in an installation quotation?

Normally: wall penetrations other than through plasterboard, electrical work, painting beyond the agreed scope, access equipment, lagging exposed pipework, and removing or reinstating bird netting. It is listed in writing on the quotation so it is a decision rather than a surprise.

How long does an installation take?

It depends on the head count and how many floors, because each floor carries its own deliveries and its own testing days. We need three to four weeks' notice before starting so materials and access can be arranged, and the programme goes in the quotation.

Read more about this

Compliance Sprinklers in blocks of flats: what the rules require In England, new blocks of flats above 11 metres must have sprinklers fitted. Residential systems are designed and maintained to BS 9251, which is a different standard from the commercial BS EN 12845. Read the guide Compliance What your insurer actually wants from a sprinkler system Insurers price a sprinkler system as risk mitigation only if they can trust it. Who installed it, what it was designed to and an unbroken maintenance record are what make it count. Read the guide Compliance When does a UK building legally need sprinklers? In England, new blocks of flats over 11 metres must have sprinklers, and Wales requires them in almost all new homes. Beyond those thresholds, sprinklers are required by building control, by the fire strategy, or by an insurer rather than by a single national rule. Read the guide

All the guides What this costs Types of system

We also cover

BS EN 12845 Sprinkler servicing The full BS EN 12845 routine, from the weekly gauge and alarm check to the annual service. BS EN 12845 Sprinkler tanks The water supply behind the system, inspected, cleaned and replaced when it is past it. BS EN 12845 Fire pumps Electric and diesel sets proved under flow, not just started and signed off. Any hour 24/7 emergency A leak, a failed pump or a discharged head, answered out of hours. BS 9990 Dry risers Six-monthly inspection and the annual pressure test, with the certificate your fire risk assessment asks for. BS 9990 Wet risers Charged risers, their pumps and their tanks, tested together because they only work together.

Design and installation for your kind of building

The standard is the same. What changes is the hazard, the design and what an insurer asks to see.

All our services The standards we work to Questions and answers

Fire sprinkler installation, 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.

Every town we cover

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.

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.

Build the system in 3D

Pick the building and the parts, then start a fire and watch the installation do its job. When it looks like yours, send it to us for a free survey.

Illustration only. Not a design.

Loading the 3D model

Drag to turn it. Ctrl + scroll to zoom. Click any part to see what it is.

The building

High racking, one big volume. A tank and pump set are the usual supply.

Fire protection
Riser

Risers are for buildings with upper floors.

Watch it happen, one step at a time.

Click any part of the model, or any part in the list below, to see what it does and how often it is tested.

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
Book a free survey for this system

Or ring 07927 555475.

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.

Open the 3D builder on its own page

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.

BRE Global Certification and UKAS Management Systems 0007

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.

Read them on Google
  • 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

  • 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

  • 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.

Fastest. Mon to Fri, 7am to 5pm. Emergencies any hour. 07927 555475
Based
37 Dickens Drive, Kettering, NN16 9EG
Covering
Kettering · Corby · Wellingborough · Northampton · Rushden · Daventry · Market Harborough · Bedford and England, from our base in Kettering
Office hours
Monday to Friday, 7am to 5pm. Emergency line any hour.

What do you need?
Type of building optional
Who do we come back to?

    If it is urgent, ring rather than write. We are on the phone Monday to Friday, 7am to 5pm, and outside those hours the same number reaches the emergency line.

    Or send it straight to us

    Email

    Or just ring 07927 555475 and talk it through. Mon to Fri, 7am to 5pm. Emergencies any hour.