Fire-rated sealing and fire stopping in Lower Slackstead, Hampshire
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Lower Slackstead. Send photographs or drawings for a fixed quote.
- Hidden openings found during inspections
- Service penetrations left open after M&E works
- Non-fire-rated filler around services
Fire stopping for Lower Slackstead sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Diagnose, treat, sign off
At the end of each section, we remove the tape, clean down and inspect every joint, ready for your sign-off. If an area should be left alone while the sealant cures, we say how long and put signs out. For work around Lower Slackstead, we aim to finish in one visit, so we ask for photos and rough sizes first. That way the right products come on the day.
- We start with your penetration schedule, drawings or specification.
- We plan the sequence of floors, risers and voids with you.
- We compare every service penetration with its tested detail before sealing.
- Unsuitable material is removed and the opening cleaned.
- Backing and fire-rated sealant are installed to the detail and tooled.
- Anything outside the detail is reported to you rather than sealed.
What we need from you
- Tell us what induction or permit system the site runs
- Tell us your opening times and when work is allowed
- Clear stock, furniture or equipment away from the joints
Request a quote
Need a figure for a tender or a budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or email a schedule or drawings.
Advice
Fire stopping in Lower Slackstead
For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. We work from your penetration schedule or marked-up drawings alongside the manufacturer’s details. Tell us what records you need and we’ll confirm with the quote. We work on pipe penetrations, service gaps in risers and joints between fire-resisting walls and floors, and what we’re called in for most is unsealed joints where partitions meet the slab and seals that don’t match their tested detail. Whether you call it commercial sealant work, mastic application or joint sealing, in Lower Slackstead it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Rural conversions around Lower Slackstead can put new fire-resisting partitions inside older structures. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.
We stand behind the joints we seal: 12 months, guaranteed. That covers our preparation and application, and we come back if anything isn’t right.
- Location
- Lower Slackstead (SO51)
- Wider area
- Hampshire
- Cover
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
When it isn’t the sealant
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Gaps in walls that were never built as compartment walls
- Deciding what a wall or floor needs, which belongs to the designer
- Large openings beyond what any sealant detail covers
Not sure which it is? You can phone 01277 525 020 or send photos by email and we’ll tell you honestly before you book.
What we seal
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
- Linear gaps at wall heads
- Cable penetrations
- Service gaps in risers
- Pipe penetrations
Owners, agents and contractors
FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.
Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.
Compartment walls and floors in Lower Slackstead
Approved Document B is the English guidance that covers fire stopping around openings and penetrations. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail. Lower Slackstead lies roughly 67 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls; the gaps need the specified seal.
Hospital estates such as Romsey Community Hospital (to the south-west of Lower Slackstead) are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail. Halls and meeting rooms at places like Church of All Saints sometimes gain new services, and any compartment wall crossed needs the specified seal. Tenant changes at parks like Sleepy Hollow Business Park, 1.2 miles to the south of Lower Slackstead, bring new data and services, and openings through fire-resisting walls need the specified seal.
Lower Slackstead is about 3 miles north-east of Romsey, in Hampshire. If you’re looking for fire stopping in Lower Slackstead, we can help, as we do across Hampshire. Lower Slackstead is one of 723 places we cover in Hampshire. For work in that direction, see our Southampton page (8 miles or so).
Work on service penetrations is covered throughout SO51, for business premises of every kind. Nearby places we also cover include Knapp (1 mile south-east), Braishfield (1 mile west), Ampfield (1 mile south), Gosport (2 miles south) and Crampmoor (2 miles south-west). Nearby towns on our patch include Winchester (6 miles north-east), Eastleigh (6 miles south-east), Andover (13 miles north), Totton (8 miles south), Chandler's Ford (4 miles south-east) and Hedge End (10 miles south-east).
Around Lower Slackstead
Lower Slackstead’s nearest station is Romsey station, about 3.3 miles south-west of the centre. Other landmarks nearby include King Johns House (3.7 miles south-west) and Romsey Community Hospital (3 miles south-west). Open spaces near Lower Slackstead include Emer Bog and Baddesley Common.
Why deal with it now?
Inspections and handover checks often pick up fire stopping. Finding unsealed or improvised openings late can hold up a programme. One visit to deal with every failing joint makes more sense than several trips to a place like Lower Slackstead, rather than one at a time. Send photos of each area and we will quote for the lot.
There’s no price list, because the scope varies so much from one building to the next. Call for a quote.
What you get with us
- Clear, fixed quotes
- Constructionline member
- 12-month guarantee on workmanship
- Over 20 years of commercial sealing
General trades versus a specialist
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong usually costs more in the end than doing them right.
Aftercare for building managers
Keep the joints in good shape with a few simple steps:
- Leave fire sealant to cure fully before covering it
- Agree the fire-stopping specification before services go in
- Keep product data and details in the fire safety file
- Have penetrations checked while they can still be seen
Give the sealant its full cure time before ceilings, boxing or decoration go over it. Some fire-rated sealants accept paint and some don’t, so check the product data first.
Make reporting new openings part of every permit to work in service areas. Small habits like this stop openings building up.
What else we do in Lower Slackstead
Your questions answered
Can you work at a site such as Sleepy Hollow Business Park, by Lower Slackstead?
Yes, sites like Sleepy Hollow Business Park are within our area, along with the rest of Lower Slackstead. Photos and a short description are enough for a first look.
How does the move away from BS 476 affect penetration seals in Lower Slackstead?
References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. The designer or fire engineer sets the specification, and we install the product to the manufacturer’s tested detail.
Can you handle several sites?
Yes. Several buildings can share a single quote, with one point of contact across South East England, Greater London and Scotland.
When is resealing likely to be due?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.
What happens if old sealant might contain asbestos?
The duty to manage asbestos sits with the building’s dutyholder, so we will ask for the register before work on an older building. Work pauses if suspect material is found, until it has been tested.
Do you work in Lower Slackstead?
Yes. Lower Slackstead falls within our area, and the simplest way to start is to call the office on 01277 525 020 or email drawings and photos.
Can the sealant be colour-matched?
It depends on the product. Some ranges are wide, others limited, so the available colours are confirmed with the quote.