East Sussex · England

Fire Rated Sealant in Alciston

Problem with your fire-stopping gaps in Alciston? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.

  • Standard silicone or caulk in a fire-stopping gap
  • Cracked or shrunken fire-rated sealant
  • Unsealed gaps around fire door frames

Fire rated sealant for Alciston homes and businesses

How the job changes by surface

Masonry and concrete

Holes through concrete and block are rarely neat. We check the gap size around the service against the product’s tested range.

Plasterboard walls

In plasterboard walls, the condition of the board edge matters. Loose material is removed so the sealant has a firm edge.

How we handle fire rated sealant in Alciston

Deciding which gaps need fire stopping is not our role; that comes from your fire risk assessor, designer or building control. Our part is applying the specified sealant carefully, to the right depth and with the right backing. We work on door frames, linear gaps and flats & HMOs, and people most often call us about gaps filled with a product that isn’t fire-rated and seals cut through by electricians, plumbers or data installers.

If you have holiday lets, a converted barn used for business or a community building near Alciston, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.

We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Location
Alciston (BN26)
Wider area
East Sussex
Guarantee
12 months on all our work
Quote
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026

How the visit works

We keep the work tidy and contained to the area we are working on, so you can carry on as normal. The job usually takes from a few hours to a few days, depending on the number of gaps and the access, and we tell you how long to leave it before we go. In a small place like Alciston, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First we work through your list or survey, measuring each gap and checking what it’s formed in.
  2. We remove any old or unsuitable filler and clean the gap.
  3. Where the tested detail needs backing or fill, we fit it.
  4. Fire-rated or intumescent sealant is applied to the right depth and tooled.
  5. Locations and products are noted so you have them on file.

Before we arrive

  • Clear items away from the joints we’re working on
  • For business premises, tell us about site rules or sign-in
  • For indoor joints, keep the area dry beforehand if you can

Get a quote

Want a quote for fire rated sealant? Please call 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.

Ask for a quote

Related advice

Workplaces and buildings in Alciston

In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, and gaps around services are often picked up there. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.

For landlords with property near Berwick (Sussex) station, any gap left by new services in shared walls should be closed with a fire-rated product.

Alciston is about 4 miles north of Seaford, in East Sussex. Anywhere in BN26, our applicators can take on fire rated sealant. Across East Sussex, we cover 289 places, and Alciston is one of them. Our Brighton page covers work nearby.

Every address in BN26 is covered for fire rated sealant. Other places close to Alciston include Selmeston (1 mile north), Berwick (1 mile north-east), Winton (1 mile south-east), Alfriston (2 miles south-east) and Milton Street (2 miles south-east). Further out, we also cover Eastbourne (7 miles south-east), Bexhill-on-Sea (14 miles east), Seaford (4 miles south), Lewes (7 miles north-west), Hailsham (6 miles north-east) and Crowborough (15 miles north).

Around Alciston

We work in homes and buildings around Rose Cottage Inn. For rail, the closest station is Berwick (Sussex) station, about 1.3 miles north-east of the centre. Nearby you’ll also find Arlington Castle (1.7 miles south-east) and Chailey Heritage Marine Hospital (4.6 miles south-west). Open spaces near Alciston include Firle Beacon.

Map of Alciston © OpenStreetMap contributors

What affects the quote in Alciston

There’s no set price list, because jobs vary so much. What we look at:

  • Whether the work is at height
  • How much there is to do
  • Whether there’s mould to deal with
  • Working hours on commercial sites

Doing several joints on one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. We will send you a clear quote for the lot.

What we need to know

You don’t need to know the technical terms. Just tell us:

  • Access, such as stairs, a lift or height
  • Pictures of the joints, sent by email
  • What the problem is, such as mould, gaps, leaks or cracking
  • Roughly how big the job is

Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or drop us an email with the details.

Alciston: your questions answered

Is Alciston within the area you cover?

Yes, Alciston is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Do you cover Alciston for fire rated sealant?

Yes, Alciston is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or email us with a few details of the job.

Do you seal gaps around fire door frames?

Yes. Gaps behind architraves are a common job for us. Doors, seals and closers need a door specialist.

Do you carry out fire risk assessments?

No. That is for a fire risk assessor, designer or building control. Our job is applying the sealant to their specification.

Is standard sealant good enough for a fire gap?

No. Standard sealants aren’t made or tested to stop fire. We cut it out and reseal with a fire-rated product.

Do you take out the old sealant first?

Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.

Which products do you use?

Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.

Do I need to be at home?

We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.

How to look after the new joints

Looking after new joints is easy:

  • Take photos of fire stopping before ceilings or boxing go back
  • Make resealing part of every contractor’s brief
  • Check whether a sealant can be painted before decorating over it
  • Look in service cupboards and ceiling voids from time to time

Let contractors know where fire stopping has been done, and ask them to reseal anything they cut through. Later work is a common cause of damaged fire stopping.

Open gaps don’t only matter in a fire: noise, draughts and even pests can come through too. Sealing them early helps on every front.

Signs you need fire rated sealant in Alciston

Gaps also open up as buildings move: cracked or debonded sealant leaves an open route through the wall. Damage from cleaning, knocks and maintenance adds to it.

Signs it’s time to call us include:

  • Gaps filled with a product that is not fire-rated
  • Unsealed gaps around fire door frames
  • New service routes left unsealed after building work
  • Fire stopping disturbed by later work

If you look after a church, hall or community building such as The Parish Church, service openings in its walls need the right fire-rated sealant, as in any building.

Comparing quotes

  • Are they insured?
  • Whether all the old sealant comes out first
  • How the joint is cleaned and prepared
  • Whether VAT is included

10 questions to ask before booking

What sealant work can’t fix

It helps to know what we can’t do:

  • Assessing a building’s fire safety
  • Fire doors that need new seals, closers or hardware
  • Big openings where sealant alone is not the tested solution

If in doubt, call 0345 464 0079 or send us an email and we will say what we think.

Joints and surfaces we work on

  • Service penetrations
  • Flats & HMOs
  • Pipe & cable gaps
  • Plasterboard & masonry
  • Linear gaps
  • Door frames

What happens if it’s left?

Leaving a gap until a refurbishment comes round can mean years with it open. Sealing the gap now is a contained job on its own and needn’t wait for anything else. Where a wall is exposed, as many are in small places like Alciston, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.

Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.

Why book with us

  • 20+ years of sealant experience
  • Homes, businesses and hotels
  • Anti-fungal sanitary silicone in wet areas
  • ARBOMaster approved applicator

Take a look at how sealant jobs are priced and our reviews.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job