Slough · England

Middlegreen Fire Rated Sealant

Fire rated sealant for Middlegreen and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.

  • Unsealed gaps where pipes and cables go through a wall
  • Gaps flagged on a fire risk assessment
  • Linear gaps at the head of walls

Book fire rated sealant in Middlegreen

Fire rated sealant in Middlegreen, done properly

Deciding which gaps need fire stopping isn’t our role; your assessor, designer or building control sets that out. Our part is applying the specified sealant carefully, to the right depth and with the right backing. We work on door frames, plasterboard & masonry and flats & HMOs, and the jobs we see most are cracked or shrunken fire-rated sealant and joints picked up in a fire-stopping survey.

In a village or hamlet like Middlegreen, commercial work is more likely to be a pub, a farm shop, holiday lets or a village hall than an office block. Each still needs sound sealant in its washrooms and kitchens, and fire-rated joints where services pass through walls.

The work is covered for a year after we finish. If anything is not right with it, ring 0345 464 0079 or email us.

Eleven members of the Mr Mastic team standing in front of branded white vans
Where
Middlegreen (SL3)
Region
Slough
Cover
One year on every job
Price
A clear price before we start
Phone
0345 464 0079
Updated
26 October 2026

When something else is needed

It helps to know what we can’t do too:

  • Openings too large for sealant, which need batts, boards or another system
  • Issuing a fire rating or certificate for a building
  • A wall that isn’t a fire-resisting element to begin with

Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.

What we seal

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

Your questions about fire rated sealant in Middlegreen

Do you cover smaller places like Middlegreen?

Yes. Middlegreen is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.

I let a flat near Langley station. Can you help?

Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. You can ring 0345 464 0079 or email us with the details for a clear quote.

Do you hold any approvals?

Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.

Where is Mr Mastic based?

We work from Crawley. We cover Middlegreen and the rest of Slough, along with the rest of our area.

What’s the difference between intumescent and fire-rated sealant?

Intumescent describes a material that swells in heat. Intumescent sealants are a type of fire-rated sealant, and the choice depends on the gap.

How long will you be here?

It depends on the size of the job, but most jobs take from a few hours to a few days, depending on the number of gaps and the access. We will tell you when we quote.

Can you fill the gap behind a fire door frame?

Yes. We often seal open gaps hidden behind the architrave. Doors, seals and closers need a door specialist.

Do the sealants smell?

That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.

Why it’s worth doing now in Middlegreen

Fire-rated sealants need more care than everyday sealant. Depth, backing and surface preparation all affect how a seal performs, and we work to the product details every time. In a small place like Middlegreen, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.

Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we’ll go through it with you.

What you get with us

  • An ARBOMaster approved applicator
  • 20+ years of sealant experience
  • 4.9 on Google from 180+ five-star reviews
  • Anti-fungal sanitary silicone in wet areas

Read what affects the cost or our reviews.

DIY versus a professional finish

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.

Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.

What happens on the day

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 anything from a few hours to several days, depending on how many gaps there are, and we tell you how long to leave it before we go. For a village or hamlet like Middlegreen, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We go through the gaps on your list or survey and check each one’s size and substrate.
  2. Anything that isn’t fit for the job comes out, and the gap is cleaned.
  3. We put in whatever backing or fill the product detail specifies.
  4. The sealant goes in to the depth its detail sets, then it’s tooled off.
  5. Finally, we list where we worked and what we used, for your records.

Before we arrive

  • Mention if the joints have been sealed before
  • Let us know about stairs, lifts or work at height
  • Tell us if parking is tricky

Getting a quote

For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work before giving you a price.

Get a price

Advice

Commercial buildings in Middlegreen

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, which is often where open fire-stopping gaps are first noticed. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.

For buildings such as St Mary the Virgin Church, service openings in its walls need the right fire-rated sealant, as in any building. If you look after a building such as The Langley Academy Primary, fire-stopping around service openings should be restored whenever new services go in.

Middlegreen is about 2 miles east of Slough, in Slough. Every kind of property in Middlegreen can book us for fire rated sealant. Every job comes with our one-year guarantee. Our area takes in 31 places across Slough, from the larger towns to small villages. Reading is on our list too, about 19 miles from Middlegreen.

Jobs for fire rated sealant in SL3 works the same way as everywhere else we cover. Whether your property is on Laurel Avenue, St Mary's Road and Maryside or anywhere close by, we can help. If you are just outside Middlegreen, we cover Langley (1 mile south-east), George Green (1 mile north), Shreding Green (1 mile north-east), Upton (2 miles west) and Wexham Court (2 miles north-west). Further out, we also cover Cippenham (4 miles west), Britwell (3 miles north-west), Burnham (5 miles west), Stoke Poges (3 miles north-west), Huntercombe (4 miles west) and Farnham Common (4 miles north-west).

Near you in Middlegreen

Locally, jobs take us to homes and businesses close to Upton Court Grammar School, The Chestnuts pub and Langley Academy and the streets around them. Middlegreen’s nearest station is Langley station, about 0.7 miles east of the centre. Other landmarks nearby include Windsor Castle (2.8 miles south-west) and Museum of Eton Life (2.6 miles south-west). For a walk, there’s Stoke Common.

Map of Middlegreen © OpenStreetMap contributors

When to call us in Middlegreen

Many open fire-stopping gaps are made after the building is finished. New cables, pipes and data runs go through walls and ceilings and the hole they leave does not always get resealed.

Signs it’s time to call us include:

  • Gaps left after a refit or conversion
  • Gaps where walls meet ceilings or slabs
  • Unsealed gaps around fire door frames
  • Ordinary sealant used where a fire-rated product was needed

Letting a property close to Langley station? Then any gap left by new services in shared walls should be closed with a fire-rated product.

What to look for in a quote

  • How the colour is chosen
  • What preparation is included
  • Are they insured?
  • Is the old sealant removed completely?

How to choose a mastic man

Aftercare tips

After the cure time, these simple habits help:

  • Keep photos of seals that will be hidden
  • Check risers, ceiling voids and cupboards during building checks
  • Don’t paint over fire sealant until it has cured
  • Flag any open gap you spot round a pipe or cable

Do not drill through or remove a fire seal without putting it back properly. If you need new services through a sealed wall, plan the fire stopping as part of the job.

Any job that breaks through a wall or ceiling should include resealing. Catching it then saves a separate visit later.

How the job changes by surface

Masonry and concrete

Brick, block and concrete walls and floors are sealed with products tested in masonry. The gap is cleaned of dust first so the seal has something sound to bond to.

Service penetrations

Wherever a service goes through a fire-resisting wall or floor, there’s a gap around it. The sealant is chosen for what passes through and how wide the gap is.

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