Essex · England
Fire-rated sealant in Gilston, Essex
Fire rated sealant across Gilston and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Door frames with gaps between frame and wall
- Damaged fire sealant left by other trades
- Open holes round services passing through fire walls
Fire rated sealant in Gilston, done properly
Fire-rated sealant closes the gaps around pipes, cables and frames where they pass through a fire-resisting wall or floor. Each gap is sealed to the product maker’s tested detail for its size and substrate, and we can record what went where. If you have gaps flagged on a fire risk assessment and unsealed gaps where pipes and cables go through a wall, we can put it right, whatever the surface.
For a small place like Gilston, the journey and timings are agreed in advance, so it can be fitted around guests, clients or events where possible.
Your job is guaranteed for a year, as with all our work.
- Location
- Gilston (CM20)
- Region
- Essex
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
FAQs for Gilston
Can you do fire rated sealant in Gilston?
Yes. We work across London and the South East, and Gilston is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.
Do you cover smaller places like Gilston?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Are you fully insured?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do the sealants smell?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Will you assess my building’s fire safety?
No. Your fire risk assessor, designer or building control decides that. Our job is applying the sealant to their specification.
Do you need fire rated sealant in Gilston?
Over time, buildings change layout and use. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.
The problems people usually mention when they call include:
- Fire stopping disturbed by later work
- Gaps filled with a product that isn’t fire-rated
- Unsealed gaps where pipes and cables go through a wall
- New service routes left unsealed after building work
Letting a property close to Harlow Town station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Questions to ask before booking
- Who turns up on the day
- When the joint can take water or movement
- The length of the guarantee
- What insurance they hold
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- File the fire-stopping record where your assessor can find it
- Include fire stopping when you schedule refits
- Check whether a sealant can be painted before decorating over it
- Check risers, ceiling voids and cupboards during building checks
Follow the cure time we give you before decorating over the sealant. Not every fire-rated sealant takes paint and we will tell you which one you have.
Open gaps don’t only matter in a fire: noise, draughts and even pests can come through too. Dealing with them early helps with all of these.
Why act early in Gilston
Fire-rated sealants need more care than everyday sealant. How it’s installed changes how it performs, and we work to the product details every time. Where a wall is exposed, as many are in small places like Gilston, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
The cost reflects the work involved, not guesswork. That is why we ask about the job first.
What you get with us
- Homes, businesses and hotels
- Over 20 years’ experience
- 180+ five-star Google reviews
- Tidy, careful work
See our cost guide and customer reviews.
What the job involves on each surface
Door frames
Behind most architraves is a gap between frame and wall. Where it’s open, we seal it to the product’s details for that gap size before the trim goes back.
Linear gaps
Head-of-wall gaps are often hidden above suspended ceilings. We seal them along their full length so there are no open sections left.
Fire rated sealant in Gilston: local notes
Gilston is part of Harlow, one of the post-war new towns. Harlow was planned with its own industrial and business areas, so there are offices, units and workplaces not far from home. Each has washrooms, kitchens and fire-rated joints to keep in order. 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 site and facilities teams at buildings such as St Alban's Catholic Academy, service openings in fire-resisting walls need checking after any refurbishment. If you look after a church, hall or community building such as Parish Church of St Mary, older buildings that have had new heating or wiring often have service gaps worth checking.
Gilston is about 2 miles north-west of Harlow, in Essex. Whether you’re in the middle of Gilston or further out, fire rated sealant is available for homes and businesses alike. Gilston is one of 644 places in Essex we cover for fire rated sealant. We also work in Chelmsford, around 17 miles away.
Jobs for fire rated sealant in CM20 is quoted and booked the same way as anywhere else. Whether your property is on Pye Corner and Eastwick Road or a nearby road, our applicators can take on the job. We also cover Eastwick (1 mile south-west), Little Parndon (1 mile south-west), Great Parndon (2 miles south), Staple Tye (3 miles south) and Roydon (3 miles south-west). We also work in nearby towns such as Brentwood (14 miles south-east), Loughton (10 miles south), Waltham Abbey (8 miles south-west), Great Dunmow (13 miles north-east), Epping (6 miles south) and Stansted Mountfitchet (9 miles north-east).
Landmarks near Gilston
Typical jobs here are in homes near The Plume Of Feathers pub, Burnt Mill Academy and Harlow Marsh, among other places. Gilston’s nearest station is Harlow Town station, roughly 0.6 miles south. Well-known places in the area include Mark Hall Cycle Museum (1.3 miles south-east) and Harlow Mill (1.2 miles east). The countryside around Gilston includes Hunsdon Mead.
Nearby places to Gilston
Other services in Gilston
Quotes for fire rated sealant in Gilston
We do not publish a price list, because no two jobs are the same. What we look at:
- How easy the joints are to reach
- The amount of work
- Whether old sealant or filler has to be cut out
- The type of sealant required
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are not sure whether it needs doing, ring 0345 464 0079 or drop us an email for an honest opinion and a quote.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- If someone has resealed it before
- Whether it’s a home or a business
- Where the property is
- Roughly how big the job is
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work before giving you a price.
The process
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes from a few hours to a few days, depending on the number of gaps and the access, and the area is left clean. Somewhere like Gilston needs a little journey planning: 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.
- Access to each area is agreed so the work can run in order.
- Old, damaged or unsuitable sealant is removed.
- Dust and loose debris are cleaned from each gap.
- The fire-rated or intumescent sealant is applied and tooled to the tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
Getting ready for the visit
- Let us know about parking restrictions
- For indoor joints, keep the area dry beforehand if you can
- Mention any leaks or damp you’ve noticed
Get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or drop us an email.
Related advice
Honest limits
In fairness, some problems need a different trade:
- A wall that isn’t a fire-resisting element to begin with
- Sign-off of the building, which sits with building control or your assessor
- Fire doors that need new seals, closers or hardware
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.
What we seal
- Pipe & cable gaps
- Flats & HMOs
- Door frames
- Plasterboard & masonry
- Linear gaps
- Service penetrations