Fire-rated sealing and fire stopping in Knightwood, Hampshire
Fire-rated and intumescent sealing of service penetrations and linear gaps in Knightwood and across Hampshire. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Fire-stopping items raised at inspection or handover
- Fire seals cut back for extra cables and never reinstated
- Unsealed openings around new pipes and cables
Fire stopping across Knightwood
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Leave it or put it right?
An improvised seal can look finished while offering no tested performance. Correcting it means cutting it out and starting again with the specified product, so it makes sense to get it right first time. In a smaller place such as Knightwood, getting a contractor back for a second visit takes time, so we’d suggest renewing all the joints that are going, not just the worst.
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.
Why appoint us
- CHAS accredited
- Clear, fixed quotes
- One phone line for London, the South East and Scotland
- Fully insured
See what affects the cost or our accreditations and insurance.
About our fire stopping in Knightwood
Penetration seals are fire tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4. A rating such as EI 60 only holds when the product is installed as it was tested. So our job is to reproduce that arrangement faithfully. We work on linear gaps at wall heads, pipe penetrations and cable penetrations, and the failures we’re asked to look at most are unsealed openings around new pipes and cables and unsealed joints where partitions meet the slab. Whoever orders the work in Knightwood, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.
Fire-rated sealing in a place like Knightwood is normally a single building at a time. With the specification and photos of the gaps, we can give a fixed quote and bring the right products.
A 12-month guarantee applies to all our work. If an installation problem shows up, call 01277 525 020 or send details through our quote form and we’ll arrange a return visit.
- Where
- Knightwood (SO53, SO52)
- Wider area
- Hampshire
- Cover
- A 12-month guarantee
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Quoting for work in Knightwood
There’s no standard rate for sealant work, since sites vary so much. What we look at:
- Site requirements such as inductions and permits
- How much there is to seal
- Any access equipment needed
- Joint width, depth and condition
Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
Details that help us quote
There’s no need for a formal survey. A few details are enough to get going:
- Anything awkward about access or site hours
- Drawings or a marked-up plan, if available
- Asbestos survey details if the building is older
- The product your specification calls for
A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or ring 01277 525 020 or email a schedule or drawings to discuss it first.
Towns and villages near Knightwood
What else we do in Knightwood
How the job changes by surface
Small ducts
Ducts are only sealed with sealant where the detail allows it. Dampers and ductwork systems themselves are outside our work.
Plastic pipes
Waste and drainage pipes through floors are a frequent case. The detail decides whether sealant alone is enough, and we won’t substitute it for a specified collar.
How a job runs
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then handed back before we move to the next. For a site in Knightwood, we plan so the whole job is done in one go where possible. Clear photographs and measurements help us bring the right products.
- We start with your penetration schedule, drawings or specification.
- Access, permits and the order of areas are agreed with the site team.
- We compare every service penetration with its tested detail before sealing.
- Foam, ordinary sealant and debris come out first.
- The specified backing and sealant go in to depth and are finished neatly.
- Anything outside the detail is reported to you rather than sealed.
Getting the site ready
- Tell us your opening times and when work is allowed
- Let building users know which areas are affected
- Make sure the joints can be reached
Quotes
For a fixed quote, call the office on 01277 525 020 or email the details over, telling us the site location and the nature of the job. Our quote form is another easy route.
Related advice
FAQs: Knightwood
What does the BS 476 change mean for fire-rated sealant in Knightwood?
Approved Document B loses its BS 476 references from 2 September 2029, and BS EN 13501-2 becomes the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.
Will you take on work at estates like Monks Brook Industrial Park, close to Knightwood?
Yes. We cover Knightwood and the area around it, including industrial estates, business parks and retail parks such as Monks Brook Industrial Park. To start, just call 01277 525 020 or email us with the unit, the joints involved and your access times.
How do I request a quote?
There are four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photographs and a postcode.
Can one quote cover more than one building?
Yes. Several buildings can share a single quote, with one point of contact.
Does the weather affect the work?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.
Are you insured?
Yes. We’re fully insured, including public liability cover.
Is colour matching possible?
Often, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We’ll confirm the colours available for the specified product.
Maintenance after handover
A few simple habits keep the new joints working:
- Include service cupboards in routine inspections
- Treat an open penetration as a priority repair
- Have penetrations checked while they can still be seen
- Put resealing into every M&E and fit-out package
Once the seals are in, tell other trades they exist and must not be disturbed. Any seal cut back for a new service needs reinstating to its tested detail using the same product.
Write fire stopping into the scope of any work crossing a compartment wall or floor. That way the opening is sealed while the trade and access are still there, not months later.
Penetration seals near Knightwood
Knightwood is about 67 miles from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls. A number of hotels sit less than 2 miles from Knightwood. Bedroom-to-corridor walls in hotels are normally fire-resisting, so new cabling or pipework through them has to be sealed to the tested detail.
For a unit at a site such as Monks Brook Industrial Park (0.6 miles south-east of Knightwood), new power or data runs between office and warehouse can breach a compartment wall. In a retail centre such as Chestnut Avenue Retail Park, 1.6 miles south-east of Knightwood, any fire-resisting wall between units that is crossed by new services needs sealing to the tested detail. For a hospital such as Wessex Hospital, 1.9 miles to the east of Knightwood, penetration sealing is normally phased ward by ward, with infection-control rules agreed first.
Knightwood is about 1 mile west of Chandler's Ford, in Hampshire. Any commercial site in Knightwood is covered. Across Hampshire, 723 places are covered, Knightwood among them.
We cover the SO53 and SO52 postcode districts for service penetrations. For a building on Foyle Road, Harvest Road and Flexford Road or nearby, we can quote for service penetrations. Nearby places we also cover include Chilworth Old Village (2 miles south-west), Chilworth (2 miles south), North Baddesley (2 miles west), Toothill (3 miles south-west) and Bassett (3 miles south) for service penetrations. Further afield, our area takes in Winchester (6 miles north-east), Eastleigh (3 miles south-east), Fareham (13 miles south-east), Totton (7 miles south-west), Hedge End (7 miles south-east) and Romsey (4 miles west).
Landmarks near Knightwood
Locally, jobs take us to sites close to Toynbee School, among other places. The nearest railway station is Chandlers Ford station, about 0.8 miles south-east. A little further out are Romsey Community Hospital (3.5 miles west) and Eastleigh Museum (2.5 miles south-east). Not far away are Flexford Nature Reserve.
Site staff or a sealant specialist?
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.