Fire-rated sealing and fire stopping in Little London, Surrey
Planning work on a service penetration in Little London? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Damaged fire seals in risers and voids
- Hidden openings found during inspections
- Builders’ foam or ordinary silicone in compartment walls
Fire stopping for businesses in Little London
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Maintenance after handover
Your facilities or cleaning team can help the joints last. Share these points with them:
- Look above ceilings when tiles are lifted for other jobs
- Record which product was used where
- Get seals inspected before ceilings and boxing close
- Settle who seals which penetrations at the start of a project
During planned inspections, look at seals in risers, cupboards and voids. Watch for cracked sealant, new services with no seal and openings that have grown, and report them promptly.
Regular walk-rounds of service areas are worth the time. A cracked or disturbed seal found early is a small job.
Fire stopping in Little London
A lot of fire-stopping work comes after M&E installation, a refit or a tenant fit-out. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls, often unnoticed. We close the openings listed on your schedule, using the specified sealant and detail. We work on cable penetrations, small duct penetrations where the tested detail allows and joints between fire-resisting walls and floors, and the usual reasons a site gets in touch are fire sealant pulled out of the opening and penetration schedules that need working through. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Little London it comes down to the same thing: the right product in a properly prepared joint.
Smaller places such as Little London still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.
Our workmanship is guaranteed for 12 months, wherever the site is. If our installation lets you down in that time, we return and fix it.
- Place
- Little London (GU5)
- Wider area
- Surrey
- Cover
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026
On site: what to expect
Working in a building that stays open takes some planning. The work area is signed and kept contained, with routes through the building left open and move on in phases so staff and visitors can carry on around us. For a building around Little London, tell us how to find it and who will meet us. Send that with the details and we’ll confirm the plan with the quote.
- First we confirm the product and tested details named in the specification.
- Openings are measured and grouped by detail.
- Old or wrong materials are cut out.
- Where the detail needs backing, it goes in at the stated depth.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- Completed areas are checked with you, with the records agreed when we quoted.
Before we start on site
- Let us know about inductions and permits
- Send your site hours and access windows
- Send any specification or drawings in advance
Getting a fixed quote
Photos, drawings or a schedule of the joints are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.
Read more
Places near Little London
More services for Little London
What we can’t put right
Not every problem is a sealant problem, and we’re upfront when that’s the case. These need a different solution:
- Gaps in walls that were never built as compartment walls
- Fire doors, dampers or other fire safety equipment
- Issuing fire ratings or certificates for seals
If you are not sure, just ring 01277 525 020 or use the quote form and we’ll give you a straight answer before you book.
Surfaces we seal
- Cable penetrations
- Joints between fire-resisting walls and floors
- Linear gaps at wall heads
- Service gaps in risers
- Pipe penetrations
- Small duct penetrations where the tested detail allows
Little London: questions and answers
How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Little London?
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.
Is a smaller place like Little London outside your area?
No. Places such as Little London are covered as much as the big towns. We cover Greater London and the counties of the South East. We plan jobs in smaller places so return trips are kept to a minimum.
Are you CHAS accredited and on Constructionline?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
What’s the quickest route to a quote?
There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photographs and a postcode.
Will you just go over the old sealant?
No. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
Are you fully insured?
Yes. We are fully insured, including public liability cover.
Can you fit around our working hours?
Give us your site hours and any access windows in your enquiry, and we will plan around them. You can reach the office between 8am and 5pm, Monday to Friday.
What the job involves on each surface
Plastic pipes
Plastic waste pipes through slabs come up often. Whether sealant alone is acceptable depends entirely on the tested detail, and we won’t substitute it for a specified collar.
Linear joints
Head-of-wall joints often have to absorb slab deflection. The specified product and backing for that movement are what goes in.
Should maintenance staff do it?
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.
For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Fire-rated sealing for Little London buildings
Little London is about 26 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. 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. What we install is set by the specification, and it goes in to the tested detail.
On a hospital site such as St. Luke’s Hospital, which lies north-west of Little London, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits. In a school such as Shere CofE Aided Infant School, fire-rated sealant goes in around service penetrations where it is specified.
Little London is about 5 miles south-east of Guildford, in Surrey. Our applicators travel to Little London for work on service penetrations. Our Surrey coverage takes in 379 places. We also cover London, around 26 miles from Little London.
Anyone looking for fire stopping in GU5 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Nearby places we also cover include Albury Heath (1 mile north-west), Shere (1 mile north-east), Albury (1 mile north-west), Gomshall (1 mile north-east) and Hoe (2 miles east) for service penetrations. Further afield, our area takes in Guildford (5 miles north-west), Woking (9 miles north-west), Camberley (14 miles north-west), Epsom (13 miles north-east), Horley (13 miles east) and Redhill (13 miles east).
Near you in Little London
In Little London, that means premises near Colekitchen Down and King William IV Public House, among other places. The closest station to Little London is Gomshall station, roughly 1.6 miles north-east. Nearby you’ll also find Shere Museum (1 mile north-east) and St. Luke’s Hospital (4.1 miles north-west). The countryside around Little London includes Silent Pool and St Martha's Hill.
When to call us in Little London
Openings in fire-resisting walls normally appear when services are added or changed. A new cable pulled by an electrician, a pipe rerouted by a plumber or a data run drilled through a riser leaves an opening that nobody returns to. Across several fit-outs, the openings add up.
It’s worth sending us details if you spot any of the following:
- Expanding foam used as fire stopping
- Seals disturbed by maintenance and left open
- Old intumescent sealant that has split away
- Head-of-wall gaps with no fire seal
For a building such as Old St Peter and St Paul's Church, new heating or data runs are the usual reason penetrations need sealing.
Questions to ask before you book
- Whether primer will be used where the manufacturer specifies it
- Will CSCS-carded applicators be on site?
- Their pre-qualification and accreditations
- What site paperwork they can supply