Hertfordshire · England
Rickmansworth Fire Rated Sealant
Fire rated sealant in Rickmansworth from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps where walls meet ceilings or slabs
- Open holes round services passing through fire walls
- Unsealed gaps around fire door frames
Why deal with it now?
Doing it once, properly, beats doing it twice. If the details weren’t followed, the seal may need redoing once someone inspects it. In a family home in Rickmansworth, a failed seal around a bath or a frame lets water into places you cannot see, like the floor under a bath, the back of a panel or the inside of a wall. Left alone, that means rot, damp and a bigger repair.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, ring 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Why Rickmansworth customers choose us
- Experience in homes, commercial sites and hotels
- An ARBOMaster approved applicator
- We never seal over old sealant
- 4.9 on Google from 180+ five-star reviews
Take a look at what affects the cost and what customers say.
Fire rated sealant in Rickmansworth
Intumescent sealant looks much like any other sealant until it gets hot; in a fire it expands into the joint. The right product depends on the gap size, the substrate and what passes through, so we follow the tested detail for each one. We work on plasterboard & masonry, service penetrations and pipe & cable gaps, and the jobs we see most are holes left by a change of layout and old fire sealant that has split or come away.
Commercial jobs in a town like Rickmansworth range from shops and offices to schools and small business units. All of them have washroom and kitchen joints, and many have fire-rated joints around pipes and cables.
Every job comes with a one-year guarantee.
- Location
- Rickmansworth (WD3, WD18)
- Wider area
- Hertfordshire
- Guarantee
- 12 months on all our work
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Nearby places to Rickmansworth
More services for Rickmansworth
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Photograph sealed gaps before they’re covered up
- Ask which product was used before you paint
- Get damaged fire seals looked at promptly
- Look in service cupboards and ceiling voids from time to time
Include fire stopping in your regular building checks. Watch for cracking, gaps or seals that have been disturbed and get them seen to.
Small gaps around services are simple to deal with while there are only a few. Leave them and each new job adds another hole and the job gets bigger.
Fire rated sealant around Rickmansworth
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, which is often where open fire-stopping gaps are first noticed. We work to the specification you are given, installing the product to its tested details.
Letting a property close to Rickmansworth station? Then any gap left by new services in shared walls should be closed with a fire-rated product. For site and facilities teams at buildings such as Saint Joan of Arc Catholic School, service openings in fire-resisting walls need checking after any refurbishment.
Rickmansworth is about 3 miles south-west of Watford, in Hertfordshire. We provide fire rated sealant to homeowners, landlords and businesses in Rickmansworth and nearby. Our Hertfordshire coverage runs to 381 places, and Rickmansworth is one of them. There’s also a page for London, roughly 19 miles from Rickmansworth.
Jobs for fire rated sealant in WD3 and WD18 is quoted and booked the same way as anywhere else. You’ll find streets such as High Street, Station Road and London Road, and we cover them all. Main roads around Rickmansworth include the A404 and A412, so getting to you is simple. Neighbouring places we cover for fire rated sealant include Batchworth (1 mile south), Chorleywood West (1 mile north-west), Croxley Green (1 mile north-east), Mill End (1 mile west) and Woodcock Hill (1 mile south). We also work in nearby towns such as Watford (3 miles north-east), Hemel Hempstead (8 miles north), St Albans (10 miles north-east), Harpenden (13 miles north), Hatfield (13 miles north-east) and Borehamwood (8 miles east).
Around Rickmansworth
Locally, jobs take us to homes and businesses close to Rickmansworth Park Junior Mixed and Infant School, Rickmansworth Park and The Coach And Horses Public House, among other places. There’s a railway station in Rickmansworth itself: Rickmansworth station. Other landmarks nearby include Chiltern Open Air Museum (3.2 miles west) and Charter Place (3.2 miles east). Open spaces near Rickmansworth include Chorleywood Common and Tumbling Bay.
Landlord and commercial work in Rickmansworth
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together.
For anyone letting property in or around Rickmansworth, several properties can be quoted together. Just tell us the addresses and what each one needs.
Do you need fire rated sealant in Rickmansworth?
Much fire stopping is hidden: in ceiling voids, service risers and behind boxing. Because nobody sees it, gaps go unnoticed until an assessor or surveyor looks.
Any of these means the joints need attention:
- Fire seals that have cracked with movement
- Open joints along the top of partitions
- Gaps filled with a product that is not fire-rated
- Open holes round services passing through fire walls
Community buildings like Church of St Mary 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
- What preparation is included
- Which sealant they’ll use, and why
- When the joint can take water or movement
- Whether you can choose the colour
Questions from Rickmansworth
I let a flat near Rickmansworth station. Can you help?
Yes, we work for landlords and agents. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Is there a guarantee on fire rated sealant in Rickmansworth?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Do you cover Rickmansworth?
We do. Rickmansworth is part of the area we cover, and the service is the same as everywhere else.
How long does fire rated sealant take?
A typical job takes from a few hours to a few days, depending on the number of gaps and the access. We will confirm how long when we quote.
Can I use normal mastic around a pipe through a fire wall?
No. Ordinary silicone, caulk or foam is not tested as fire stopping. We cut it out and reseal with a fire-rated product.
Where are you based?
Mr Mastic is based in Crawley. We cover Rickmansworth and the rest of Hertfordshire.
What does fire rated sealant cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.
Can I do it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Quotes for fire rated sealant in Rickmansworth
There’s no set price list. The quote depends on:
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
- Mould in or behind the old joints
- The number of rooms or windows
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Helping us quote
What to tell us when you ask for a quote:
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
We quote each job on its own, so start by telling us what you need. Just phone 0345 464 0079 or email us with the details, and photos are welcome.
Surface by surface
Plasterboard walls
In plasterboard walls, the condition of the board edge matters. Loose material is removed so the sealant has a firm edge.
Door frames
The gap between a door frame and the wall around it needs sealing as well as the door itself. We fill it with a fire-rated product suited to the materials either side.
How the visit works
Before we leave, we go over the finished joints with you. The work normally takes from a few hours to a few days, depending on the number of gaps and the access, depending on how much there is to do. In Rickmansworth, parking is rarely complicated, though it helps to know about driveways or restrictions, and let us know if the work is upstairs, in a flat or up high outside.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- Each gap is measured and its substrate and service noted.
- Unsuitable material such as ordinary foam or silicone is cut out.
- The specified fire-rated sealant goes in over any backing its detail requires.
- We hand over a list of locations and products.
How to prepare
- Tell us about any water getting in
- Mention any sign-in or site rules at work premises
- Mention any tricky access
Getting a quote
Want a quote for fire rated sealant? Please phone 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.