Greater London · England
Fire Rated Sealant in Hainault
Intumescent and fire-rated sealant around gaps, frames and service penetrations in Hainault, with a 12-month guarantee on every job. Call for a quick quote.
- Door frames with gaps between frame and wall
- New service routes left unsealed after building work
- Standard silicone or caulk in a fire-stopping gap
About our fire rated sealant in Hainault
Deciding which gaps need fire stopping isn’t our role; your assessor, designer or building control sets that out. What we do is apply the right product to that specification, properly and neatly. We work on plasterboard & masonry, service penetrations and flats & HMOs, and common reasons people get in touch are unsealed gaps where pipes and cables go through a wall and gaps flagged on a fire risk assessment. Some people call us the mastic man, others the silicone man or the sealant specialist, but the work in Hainault is the same: old material out, joints prepared and the right product used.
Commercial work in London comes with its own logistics: loading restrictions, building rules and tight access. Timings and access are agreed with the building before work starts in Hainault, and room-by-room programmes can be planned where needed.
Each job carries a 12-month guarantee.
- Place
- Hainault (IG6, IG7, IG8)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Price
- A clear price before any work starts
- Phone
- 07833 053749
- Page updated
- 26 October 2026
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
How the job changes by surface
Plasterboard walls
We check that the board around the gap is sound. Loose material is removed so the sealant has a firm edge.
Flats and HMOs
In flats and HMOs, the walls and floors between homes and common areas need sealing where services pass through. We work through the gaps on your assessment room by room.
What we do, step by step
We bring everything the job needs with us. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take from a few hours to a few days, depending on the number of gaps and the access. In Hainault, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- Old or unsuitable sealant is cut out and the gap cleaned.
- Where the tested detail needs backing or fill, we fit it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- We record the locations and products used for your records.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
- Mention if the joints have been sealed before
Getting a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work.
Advice
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Issuing a fire rating or certificate for a building
- Big openings where sealant alone isn’t the tested solution
- Construction that does not provide fire resistance on its own
Not sure which it is? You can ring 07833 053749 or email us and we will tell you honestly before booking.
Joints and surfaces we work on
- Pipe & cable gaps
- Plasterboard & masonry
- Service penetrations
- Linear gaps
- Door frames
- Flats & HMOs
Also near Hainault
What else we do in Hainault
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Never patch a fire seal with standard sealant
- Ask every contractor to reseal any fire stopping they disturb
- Check risers, ceiling voids and cupboards during building checks
- Check whether a sealant can be painted before decorating over it
Follow the cure time we give you before decorating over the sealant. Some fire-rated sealants can be painted and some cannot.
Small gaps around services are simple to deal with while there are only a few. Over time, more work adds more holes and the job gets bigger.
Why deal with it now?
Fire-rated sealants need more care than everyday sealant. How it’s installed changes how it performs, so we follow the maker’s details on every gap. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler for homes in Hainault.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Why book with us
- Over 20 years’ experience
- Trusted Arbo and Everbuild sealants
- Old sealant always removed completely
- Experience in homes, commercial sites and hotels
Read what affects the cost or our reviews.
What fire rated sealant looks like in Hainault
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. Commercial buildings in London often have strict access rules and limited loading, and out-of-hours working is possible to arrange.
For site and facilities teams at buildings such as Limes Farm Junior School, gaps opened by contractors for new cabling are a common finding in schools and offices. Rented homes near Seven Kings station change hands often, and fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. As a London address, Hainault can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Hainault is about 2 miles east of Woodford, in Greater London. Anywhere in IG6, we can carry out fire rated sealant at your property. Our area takes in 786 places across Greater London.
We cover every part of the IG6, IG7 and IG8 postcode area for fire rated sealant and the streets around it. If you need fire rated sealant at a property on Hughes Road, Neville Road and Addison Road or a nearby road, our applicators can take on the job. If you’re just outside Hainault, we cover Chigwell (1 mile north-west), Woodford Bridge (1 mile west), Woodford Wells (2 miles west), Woodford (2 miles west) and Buckhurst Hill (3 miles north-west). Within a short drive, we also cover London (11 miles south-west), City of Westminster (12 miles south-west), Marylebone (12 miles south-west), Kensington (14 miles south-west), St Pancras (10 miles south-west) and Shoreditch (9 miles south-west).
Near you in Hainault
We work in homes and buildings around Fairlop Waters, Kantor King Solomon High School and The New Fairlop Oak pub, among other places. Hainault’s nearest station is Seven Kings station, about 2.8 miles south. A little further out are Claybury Hospital (0.8 miles west) and Redbridge Museum (3.2 miles south). Not far away are Hainault Lodge and Highams Park Lake.
Hainault questions
Can parking be tricky for a visit in Hainault?
Parking in Hainault, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
Is Hainault in your area for fire rated sealant?
Yes, Hainault is within the area we cover. Our work covers London and the South East. You can call 07833 053749 or email us and let us know what needs doing, and we will send you a clear quote.
Can you tell me how many minutes the seal will last?
Ratings and certification sit with the product’s test evidence and whoever specified the work. Our part is installing the specified product to its tested details and list the locations and products for you.
Do you work in flats, HMOs and commercial buildings?
Yes. Occupied flats, HMOs, offices and schools are all fine, with access planned around residents or staff. Early starts or out-of-hours work can be arranged if that suits the building.
I rent my home. Can I book you?
Yes. Ask your landlord first, and we can send them the quote if that helps.
Do you have insurance?
Yes. We’re fully insured.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Do you take out the old sealant first?
Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will quote.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.