East Sussex · England

Fire-rated sealant in Offham, East Sussex

We cover Offham for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.

  • Linear gaps at the head of walls
  • Gaps around pipes and cables through fire-resisting walls
  • Joints picked up in a fire-stopping survey

Fire rated sealant for Offham homes and businesses

Commercial buildings in Offham

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 work to the specification you’re given, installing the product to its tested details. There are hotels and other places to stay in and around Offham. For hotels, a room-by-room programme keeps most rooms in use while the work goes on.

If you look after a church, hall or community building such as Church of St Peter, older buildings that have had new heating or wiring often have service gaps worth checking. For site and facilities teams at buildings such as Wallands Community Primary School, fire-stopping around service openings should be restored whenever new services go in.

Offham is about 1 mile north-west of Lewes, in East Sussex. Anywhere in BN7, we cover fire rated sealant for homes and businesses. 289 places in East Sussex are on our list, large and small. Brighton is on our list too, about 7 miles from Offham.

Every address in BN7 is covered for fire rated sealant, from the main roads to the quietest streets. Other places close to Offham include Hamsey (1 mile north-east), Lewes (1 mile south-east), South Malling (1 mile south-east), Southover (2 miles south-east) and Cliffe (2 miles south-east). Within a short drive, we also cover Eastbourne (15 miles south-east), Seaford (10 miles south-east), Hailsham (12 miles east), Crowborough (14 miles north-east), Uckfield (7 miles north-east) and Newhaven (7 miles south).

Local landmarks in Offham

Around Offham, our work takes us to homes and buildings near Railway Land, The Blacksmiths Arms and Lewes Old Grammar School and the streets around them. The closest station to Offham is Cooksbridge station, about 0.9 miles north of the centre. Other landmarks nearby include Brighton And Hove Albion Football Club Museum (3.8 miles south-west) and Lewes Castle (1.5 miles south-east). For a walk, there’s Malling Down and Offham Hill.

Map of Offham © OpenStreetMap contributors

Fire rated sealant in Offham, done properly

A fire seal relies on being installed the way it was tested: correct depth, correct backing and a product suited to the surfaces. That detail is what we take care over, one gap at a time. We are often asked to deal with gaps where walls meet ceilings or slabs and open gaps behind door architraves, across service penetrations, plasterboard & masonry and flats & HMOs.

Somewhere as small as Offham, commercial jobs tend to be pubs, holiday lets, farm buildings or halls rather than offices. Each still needs sound sealant in its washrooms and kitchens, and fire-rated joints where services pass through walls.

Our work is backed for twelve months, in Offham and everywhere else we cover.

Place
Offham (BN7)
Wider area
East Sussex
Guarantee
One year on every job
Quote
Quoted before any work starts
Phone
0345 464 0079
Page updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

What we do, step by step

Most of a good job is in the preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. In total, it generally takes a few hours for a handful of gaps, and longer for a whole building. Somewhere as small as Offham, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  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 and the gap cleaned.
  4. The specified fire-rated sealant goes in over any backing its detail requires.
  5. We hand over a list of locations and products for your files.

Getting ready for the visit

  • Tell us about any previous sealing or DIY attempts
  • Let us know about parking restrictions
  • On commercial sites, let us know about site rules

Get a quote

If you’re in Offham and need fire rated sealant, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we will agree the price before any work begins.

Get a quick quote

Related advice

Leave it or put it right?

An unsealed gap lets smoke and fire get round a wall that was built to hold them back. A proper seal lets the wall do its job again, and the work involved is often modest. Where a wall is exposed, as many are in small places like Offham, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or send us an email.

Why book with us

  • We’re fully insured
  • Tidy, careful work
  • We never seal over old sealant
  • Every job guaranteed for a year

See what affects the cost and customer reviews.

Signs you need fire rated sealant in Offham

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.

These are the problems we’re asked about most:

  • Open gaps behind door architraves
  • Unsealed gaps where pipes and cables go through a wall
  • Open joints along the top of partitions
  • Fire seals that have cracked with movement

For landlords with property near Cooksbridge station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.

What your quote should include

  • How the joint is cleaned and prepared
  • Who turns up on the day
  • When the joint can take water or movement
  • What product goes in the joint

Choosing a sealant specialist

Work for landlords, hotels and businesses

We work for landlords and letting agents as well as householders. Resealing between tenancies keeps a property looking cared for.

We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.

Can I do it myself?

If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.

What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.

How to look after the new joints

Good habits help new joints last longer. A few tips:

  • Report cracked or damaged seals as soon as you notice them
  • Check whether a sealant can be painted before decorating over it
  • Check risers, ceiling voids and cupboards during building checks
  • Store the list of sealed gaps with your building paperwork

Look at the sealed gaps as part of your routine walk-rounds. Watch for cracking, gaps or seals that have been disturbed and have them put right.

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 we cannot put right

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

  • Big openings where sealant alone is not the tested solution
  • Fire doors that need new seals, closers or hardware
  • Sign-off of the building, which sits with building control or your assessor

If you are not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.

Where we work in Offham

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

Offham questions

Is Offham within the area you cover?

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

Do you work in hotels near Offham?

Yes, we work for hotels as well as homes and businesses. A room-by-room programme keeps most rooms in use while the work goes on.

Is it worth trying it myself?

Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.

Will it make a mess?

No. We work neatly, protect the area around the joints and tidy up afterwards.

What sealant do you use?

It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.

Are you fully insured?

Yes, we’re fully insured for every job we do.

Do I need to be at home?

That depends on where the joints are. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.

What do you need from me for a quote?

A short description and the location, plus pictures if you have them. If we need more, we’ll ask.

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