Hertfordshire · England
Fire-rated sealant in Kimpton, Hertfordshire
Intumescent and fire-rated sealant around gaps, frames and service penetrations in Kimpton, with a 12-month guarantee on every job. Call for a quick quote.
- Door frames with gaps between frame and wall
- Fire stopping disturbed by later work
- Sealant items on a fire risk assessment action list
How to look after the new joints
So the new joints stay in good condition:
- Look in service cupboards and ceiling voids from time to time
- Ask every contractor to reseal any fire stopping they disturb
- Photograph sealed gaps before they’re covered up
- Keep general-purpose foam and caulk away from fire-stopping gaps
Keep the record we give you with the building’s fire safety documents. It saves time at the next inspection or assessment.
When you plan work that goes through walls or ceilings, plan the fire stopping too. Doing it at the time avoids leaving gaps behind.
Fire rated sealant in Kimpton, done properly
Fire stopping only performs as intended if it’s done to the detail: the right depth, the right backing and the right product for the substrate. That detail is what we take care over. We work on service penetrations, linear gaps and door frames, and people most often call us about cracked or shrunken fire-rated sealant and standard silicone or caulk in a fire-stopping gap.
For holiday lets, converted business premises or a community building near Kimpton, the washrooms, kitchens and any fire-rated joints need the same care as a big site.
Every job is covered by our 12-month guarantee, wherever you are in Hertfordshire.

- Location
- Kimpton (SG4)
- Wider area
- Hertfordshire
- Cover
- One year on every job
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to Kimpton
Also in Kimpton
What we cannot put right
Before you book, it’s worth knowing the limits:
- Sign-off of the building, which sits with building control or your assessor
- A wall that is not a fire-resisting element to begin with
- Deciding what fire stopping a building needs
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Where we work in Kimpton
- Pipe & cable gaps
- Service penetrations
- Flats & HMOs
- Plasterboard & masonry
- Linear gaps
- Door frames
Common questions in Kimpton
Is Kimpton within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you cover Kimpton for fire rated sealant?
Yes. We work across London and the South East, and Kimpton is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing.
How do I get a quote for fire rated sealant in Kimpton?
Every job is different, so each one gets its own quote. For a quick quote, ring 0345 464 0079 or drop us an email and tell us what needs doing and where.
Do you have insurance?
Yes. We’re fully insured.
Where is Mr Mastic based?
We’re based in Crawley, and we work across South East England, London and Scotland.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and we will quote it together.
Is it messy?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Do you certify the fire stopping?
We don’t certify fire stopping or quote ratings. We apply the specified product to the manufacturer’s details and list the locations and products for you.
For landlords and businesses
If you manage several properties in or around Kimpton, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Different surfaces, different methods
Plasterboard walls
We check that the board around the gap is sound. Crumbling edges are cleaned back before the sealant goes in.
Masonry and concrete
For masonry and concrete, we use a product tested in that substrate. The gap is cleaned of dust first so the seal has something sound to bond to.
Do you need fire rated sealant in Kimpton?
Gaps around door frames are easily missed. The architrave hides the gap between frame and wall, so it’s easy to leave unsealed when doors are changed.
Signs it’s time to call us include:
- Linear gaps at the head of walls
- Open holes round services passing through fire walls
- Old fire sealant that has split or come away
- Unsealed gaps around fire door frames
For site and facilities teams at buildings such as Kimpton Primary School, service openings in fire-resisting walls need checking after any refurbishment.
What your quote should include
- Which colour the sealant will be
- Is the old sealant removed completely?
- When the joint can take water or movement
- Who does the work, and how experienced they are
How it works
There is not much for you to do on the day. Point us to the joints and we will get on with it. The work itself takes a few hours for a handful of gaps, and longer for a whole building from start to finish. Somewhere like Kimpton 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.
- We start with the survey or action list, checking the size and surfaces of every gap.
- Anything that is not fit for the job comes out, and the gap is cleaned.
- We put in whatever backing or fill the product detail specifies.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- We record the locations and products used for your records.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Mention any parking rules near the property
- Let us know if you’ve seen damp or leaks
How to get a quote
Want a quote for fire rated sealant? Please call 0345 464 0079 or email us and tell us about the job. We will explain what we’d do and send you a clear quote before we start.
Related advice
Fire rated sealant around Kimpton
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We work to the specification you’re given, installing the product to its tested details.
Rented homes near Harpenden station change hands often, and any gap left by new services in shared walls should be closed with a fire-rated product. For buildings such as Parish Church of St Peter and St Paul, service openings in its walls need the right fire-rated sealant, as in any building.
Kimpton is about 3 miles north-east of Harpenden, in Hertfordshire. If you need fire rated sealant in Kimpton, please phone 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Hertfordshire, Kimpton included. Kimpton is one of 381 towns and villages in Hertfordshire where we work. For nearby work, see our London page.
Every address in SG4 is within our area for fire rated sealant. Whether your property is on High Street, Hampden and Wheelwrights or a nearby road, our applicators can take on the job. Nearby, we also carry out fire rated sealant in Gustard Wood (2 miles south), Whitwell (2 miles north), Ayot St Lawrence (2 miles south-east), Codicote Bottom (2 miles east) and Codicote (3 miles east). Larger places within reach include Watford (14 miles south), Hemel Hempstead (10 miles south-west), Stevenage (6 miles north-east), St Albans (7 miles south), Welwyn Garden City (6 miles south-east) and Harpenden (3 miles south-west).
Around Kimpton
Around Kimpton, our work takes us to homes and buildings near The Boot pub and the streets around them. Kimpton’s nearest station is Harpenden station, roughly 3.4 miles south-west of the centre. A little further out are Harpenden Museum (3.6 miles south-west). Green spaces nearby include Stocking Springs Wood.
Why deal with it now?
Sealant isn’t the fix for every opening. Big openings, bundles of cables and plastic pipes may need batts, collars or wraps instead. We will say so if a gap needs something other than sealant. Around Kimpton, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
What you get with us
- Any old sealant cut out fully, not covered over
- Homes, businesses and hotels
- We’re fully insured
- Approved under the ARBOMaster scheme
See our cost guide or customer reviews.
