
Fire stopping in Over Wallop
Planning work on a service penetration in Over Wallop? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Builders’ foam or ordinary silicone in compartment walls
- Head-of-wall gaps with no fire seal
- Openings found when ceilings come down for a refit
Fire stopping in Over Wallop
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Fire stopping in Over Wallop
Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our job is fitting fire-rated and intumescent sealant at those service penetrations, and along linear gaps, where it is the specified product. Each seal follows the manufacturer’s tested detail. If you have openings left by services added after handover and non-fire-rated filler around services, we can help, on pipe penetrations, linear gaps at wall heads and joints between fire-resisting walls and floors alike. For commercial sealant work in Over Wallop, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.
For a smaller site near Over Wallop, we plan to do all the penetrations in one go, so send the specification and photos first. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.
- Place
- Over Wallop (SO20)
- Region
- Hampshire
- Guarantee
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026

What sealant work can’t fix
Not every problem is a sealant problem, and we’d rather tell you before you spend money. It won’t fix:
- Signing off or certifying a building’s fire stopping
- Fire risk assessments, a job for a competent assessor
- Construction that lacks the fire resistance the seal relies on
If you’re not sure, just call 01277 525 020 or use the quote form and we will give you a straight answer.
Surfaces we seal
- Pipe penetrations
- Small duct penetrations where the tested detail allows
- Cable penetrations
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
- Service gaps in risers
What the job involves on each surface
Masonry and concrete
Many seals are made in blockwork, brickwork or concrete slabs. Dust and debris are cleared from the opening, with backing added if the detail requires it.
Small ducts
Ducts are only sealed with sealant where the detail allows it. The ductwork, its supports and any dampers are for the ductwork contractor.
Commercial clients in Over Wallop
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, and each stage is agreed with your contact.
If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
Why it’s worth doing now in Over Wallop
Fire stopping is a regular point raised at inspections and handover. Late discoveries can delay handover while openings are reopened and resealed which is why earlier is better. Halls, stores and units around places like Over Wallop may not be checked every day, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote and we will explain how it’s made up.
Why us?
- Specification-led, product-correct work
- Our applicators hold CSCS cards
- Fully insured
- Sealing commercial buildings since 2005
Should maintenance staff do it?
Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
Also near Over Wallop
More services for Over Wallop
How a job runs
Occupied buildings need a little choreography. The work area is signed and kept contained, keep walkways clear and work section by section so the rest of the building stays in use. If others near Over Wallop need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.
- First we go through the drawings, schedule or specification for the seals.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- We fit the backing the detail asks for, to the stated depth.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- If an opening needs something other than sealant, we tell you instead of improvising.
Getting the site ready
- Share your working hours and any access restrictions
- For older buildings, check the asbestos register before work
- Flag any permit to work we’ll need
Request a quote
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.
Related advice
Where services cross fire walls in Over Wallop
For England, the fire stopping of penetrations is dealt with in Approved Document B. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail. At about 69 miles from central London, Over Wallop is within reach of the capital. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls.
In a school such as Wallop Primary School, fire-rated sealant goes in around service penetrations where it is specified. For a hotel such as Fifehead Manor Hotel, which lies south-east of Over Wallop, penetration seals are worth checking after any refit or services upgrade. For a building such as Church of St Peter, new heating or data runs are the usual reason penetrations need sealing.
Over Wallop is about 7 miles south-west of Andover, in Hampshire. Our applicators travel to Over Wallop for work on service penetrations. Our Hampshire coverage takes in 723 places, from busy centres to rural villages. We also cover Southampton, some 18 miles away.
Business premises anywhere in SO20 are within our area. Buildings on Station Road, King Lane and King Lane Cottages are within our area for service penetrations. Close to Over Wallop, our area also takes in Middle Wallop (1 mile south-east), Kentsboro (2 miles north-east), Nether Wallop (2 miles south-east), Fox (3 miles north) and Amport (4 miles north). A short drive away, we cover Winchester (13 miles south-east), Andover (7 miles north-east), Chandler's Ford (14 miles south-east), Romsey (12 miles south-east), Hyde (13 miles south-east) and Tidworth (7 miles north-west).
Near you in Over Wallop
Around Over Wallop, our work takes us to commercial buildings near The White Hart Inn. The closest station to Over Wallop is Grateley station, about 2 miles north-west. Green spaces nearby include Winterbourne Downs RSPB reserve and Quarley Hill.
Over Wallop: questions and answers
Is a smaller place like Over Wallop outside your area?
No. Small places get the same service as large ones. London and every South East county are within our area. Good photos up front let us bring everything on the first visit.
How does the move away from BS 476 affect penetration seals in Over Wallop?
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. Our part doesn’t change: the specified product, to its tested detail.
Do you offer coloured sealant?
It depends on the product specified. Some ranges offer many colours, others very few, so we’ll confirm the colours available for the specified product with the quote.
Are your applicators CSCS-carded?
Yes. Our applicators hold CSCS cards, which many sites require.
Can you fit around our working hours?
We’re in the office from 8am until 5pm, Monday to Friday. Tell us your site hours and access windows and the work will be fitted around them.
Do you have public liability insurance?
Yes. Our insurance certificate can be sent alongside the quote.
What happens if old sealant might contain asbestos?
Managing asbestos is the dutyholder’s responsibility, so we’ll ask for the register before work on an older building. Work pauses if suspect material is found, until it has been tested.