Buckinghamshire · England

Fire-rated sealant in South Heath, Buckinghamshire

Professional fire rated sealant in and around South Heath, with every bit of old sealant taken out first.

  • Open holes round services passing through fire walls
  • Unsealed gaps around fire door frames
  • Fire seals that have cracked with movement

Book fire rated sealant in South Heath

Fire rated sealant for homes and businesses in South Heath

Where services or frames pass through a fire-resisting wall or floor, the gap around them needs a fire-rated seal. Each gap is sealed to the product maker’s tested detail for its size and substrate, and we can record what went where. We are often asked to deal with holes left by a change of layout and damaged fire sealant left by other trades, on flats & HMOs, pipe & cable gaps and door frames.

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

There’s a 12-month guarantee on every job.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Location
South Heath (HP16)
Wider area
Buckinghamshire
Guarantee
One year on every job
Price
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026

Aftercare tips

Simple care keeps the joints in good condition. Our advice:

  • Tell trades working in the building that fire seals must be put back
  • Include hidden areas like risers in routine checks
  • Flag any open gap you spot round a pipe or cable
  • Store the list of sealed gaps with your building paperwork

Any fire seal that’s cut or drilled needs resealing to its tested detail. New services through a sealed wall should include fire stopping in the plan.

When you plan work that goes through walls or ceilings, plan the fire stopping too. Doing it at the time avoids leaving gaps behind.

What affects the cost of fire rated sealant

For a quick quote, just ask. The main things that affect it are:

  • Whether the work is at height
  • How much there is to do
  • Mould in or behind the old joints
  • The number of rooms or windows

What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.

What to tell us for a quote

To make quoting easier, please include:

  • Photos by email, if that’s easy
  • Whether it has been sealed before
  • How many joints, rooms or windows are involved
  • How we’d reach the joints

Want a quote for fire rated sealant? Please phone 0345 464 0079 or send us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.

What fire rated sealant looks like in South Heath

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 work to the specification you’re given, installing the product to its tested details.

Letting a property close to Great Missenden station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. If you look after a building such as Great Missenden CofE Combined School, service openings in fire-resisting walls need checking after any refurbishment.

South Heath is about 3 miles west of Chesham, in Buckinghamshire. Homes, rented property, offices and hotels in South Heath can book us for fire rated sealant. The work is guaranteed for a year. Our Buckinghamshire coverage runs to 263 places, South Heath among them. For nearby work, see our Reading page, about 22 miles away.

Work in HP16 is quoted and booked the same way as anywhere else. That includes homes and businesses on Meadow Lane, Lappetts Lane and Wood Lane and the roads around them. We also cover Hyde End (1 mile south-east), Ballinger Common (1 mile north), Hundridge (1 mile east), Lee Common (1 mile north) and Chartridge (2 miles north-east). We also work in nearby towns such as Aylesbury (9 miles north-west), High Wycombe (6 miles south-west), Chesham (3 miles east), Marlow (10 miles south-west), Amersham (4 miles south-east) and Beaconsfield (7 miles south).

Around South Heath

Around South Heath, our work takes us to homes and buildings near Annie Baileys pub, The Misbourne School and Missenden Abbey Adult Education College, among other places. For rail, the closest station is Great Missenden station, roughly 1.2 miles west of the centre. Well-known places in the area include Chiltern Hospital (1.3 miles south) and Great Missenden (0.9 miles south). Not far away are Pavis Wood and Sands Bank.

Map of South Heath © OpenStreetMap contributors

What we’re called out for in South Heath

Lots of unsealed gaps appear long after the building was completed. Electricians, plumbers and data installers drill through walls and ceilings and the hole round the new service is not always sealed again.

If you can see any of these, it’s time to have the joints looked at:

  • Door frames with gaps between frame and wall
  • Cracked or shrunken fire-rated sealant
  • Open holes round services passing through fire walls
  • Ordinary sealant used where a fire-rated product was needed

Community buildings like St Mary's are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.

Before you book anyone

  • Whether they seal over old material or remove it
  • Which colour the sealant will be
  • When the joint can take water or movement
  • What product goes in the joint

10 questions to ask before booking

What happens on the day

Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes from a few hours to a few days, depending on the number of gaps and the access. Somewhere as small as South Heath, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
  2. We measure every gap and note what it’s in and what passes through.
  3. Unsuitable material such as ordinary foam or silicone is cut out.
  4. We fit backing where needed and apply the fire-rated sealant to depth.
  5. We hand over a list of locations and products.

How to prepare

  • Let us know about parking restrictions
  • Keep children and pets away from the work area
  • Move anything stored near the joints

How to get a quote

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, call 0345 464 0079 or send us an email.

Get a quick quote

Related advice

Landlord and commercial work in South Heath

Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured.

Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.

Should I try it myself first?

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.

A DIY attempt does not rule out a professional job. We remove it and do the joint properly.

Your questions about fire rated sealant in South Heath

Do you cover smaller places like South Heath?

Yes. South Heath 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.

Do you work for landlords with property near Great Missenden station?

Yes, we work for landlords and letting agents. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.

Do you carry out fire risk assessments?

No, assessment is not something we do. When your assessor or designer has set out what’s needed, we can quote for the fire-rated sealant items.

How long will you be here?

As a guide, most jobs take from a few hours to a few days, depending on the number of gaps and the access. Bigger jobs take longer, and we’ll tell you how long to expect.

What should I tell you?

Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply phone 0345 464 0079 or email us.

Can you work in occupied buildings?

Yes, in flats, HMOs, schools, offices and other buildings, occupied or empty. Tell us how the building is used and we will plan around it.

Will the old sealant be removed?

Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.

Are you an approved applicator?

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

What sealant work cannot fix

To be straight with you, some problems need a different trade:

  • Certifying a building or signing off its fire safety
  • Problems with the door itself rather than the gap around the frame
  • Deciding what fire stopping a building needs

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

Joints and surfaces we work on

  • Door frames
  • Flats & HMOs
  • Plasterboard & masonry
  • Linear gaps
  • Pipe & cable gaps
  • Service penetrations
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job