Fire-rated sealing and fire stopping in Hempstead, Medway
Looking for fire stopping in Hempstead? It’s simple: send details, get a quote, we seal, guaranteed.
- Improvised or mixed-product fire seals
- Non-fire-rated filler around services
- Damaged fire seals in risers and voids
Need fire stopping in Hempstead?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Maintenance after handover
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:
- Foam or ordinary sealant is never a fire-seal repair
- Treat an open penetration as a priority repair
- Include service cupboards in routine inspections
- Agree the fire-stopping specification before services go in
Keep the product data and installation details with the building’s fire safety information. It makes later repairs much easier to match.
Looking at service areas on a regular cycle pays off. Catching a damaged seal early keeps the fix small; found late, it can be one of many.
About our fire stopping in Hempstead
Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our job is fitting fire-rated and intumescent sealant at those service penetrations, and along linear gaps, where it is the specified product. We work to the product’s tested detail for every seal rather than guesswork. We work on cable penetrations, linear gaps at wall heads and joints between fire-resisting walls and floors, and the failures we’re asked to look at most are open linear gaps along the top of fire-resisting walls and builders’ foam or ordinary silicone in compartment walls. Searching for sealant specialists in Hempstead? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.
Fire-rated sealing in a place like Hempstead is usually a single building at a time. With the specification and photos of the gaps, we can give a fixed quote and bring the right products.
Our workmanship is guaranteed for 12 months, wherever the site is. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Where
- Hempstead (ME7, ME8)
- Wider area
- Medway
- Guarantee
- 12 months on every job
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Questions we are asked in Hempstead
Can you seal penetrations in a hotel in Hempstead after a refit?
Yes. We install fire-rated and intumescent sealant where it is specified. We match the product to the wall or floor and the services, and say if something other than sealant is needed.
Does your area include sites such as Hempstead Valley Shopping Centre, near Hempstead?
Yes. We cover Hempstead and the area around it, including industrial estates, business parks and retail parks such as Hempstead Valley Shopping Centre. To start, just call the office on 01277 525 020 or email the details over with the unit, the joints involved and your access times.
Do you have public liability insurance?
Yes. Mastic Doctor is fully insured, public liability included.
How much does the work cost?
That depends on the job: quantities, access, the product and any phasing. Call for a fixed quote and we’ll price it properly.
What’s the quickest route to a quote?
There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photographs and a postcode.
Do you work in Hempstead?
Yes. We cover Hempstead. To discuss a job, phone 01277 525 020 or send details through our quote form.
Does the weather affect the work?
It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
What we are called out for in Hempstead
Some seals fail because the wrong product went in: expanding foam or a general-purpose sealant pushed into a gap to tidy it. It may look closed, but it has no tested fire performance in that position and has to be removed.
Most enquiries start with something like this:
- Unsealed joints where partitions meet the slab
- Hidden openings found during inspections
- Seals disturbed by maintenance and left open
- Openings left by services added after handover
At a retail site such as Hempstead Valley Shopping Centre, 0.6 miles to the south of Hempstead, walls between units may be fire-resisting, so services added in a refit need the specified seal.
Questions to ask before you book
- The named product and why it was chosen
- Will CSCS-carded applicators be on site?
- Health and safety accreditation such as CHAS
- The terms of the workmanship guarantee
Work for main contractors and building owners
FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.
Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.
How the job changes by surface
Plastic pipes
Plastic waste pipes through slabs come up often. Whether sealant alone is acceptable depends entirely on the tested detail.
Small ducts
We seal around ducts only within what the tested detail covers. Dampers and ductwork systems themselves are outside our work.
Also in Hempstead
What affects the price in Hempstead
To price the job, we consider:
- The site’s rules and procedures
- Phasing around occupants
- Distance, for remote addresses
- The product specified
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.
Before you send an enquiry
It doesn’t need to be a full survey. These details are enough to start:
- The type of building and who uses it
- Any specification or named product
- A wide shot and a close-up of the area
- Asbestos survey details if the building is older
Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. To get it moving, call the office on 01277 525 020 or email a schedule or drawings.
How a job runs
Before we leave any area, we remove the tape, clean down and inspect every joint with your site contact. If an area should be left alone while the sealant cures, we say how long and put signs out. If neighbouring businesses or buildings around Hempstead need work too, visits can be combined. Tell us your site hours and we will plan around them.
- We start with your penetration schedule, drawings or specification.
- We plan the sequence of floors, risers and voids with you.
- Each opening is checked for wall or floor type, service, gap and depth.
- Unsuitable material is removed and the opening cleaned so the seal starts clean.
- Backing and fire-rated sealant are installed to the detail and tooled.
- Anything outside the detail is reported to you rather than sealed.
Before we start on site
- Move anything stored against the joints
- Confirm the product named in the specification
- Tell us your opening times and when work is allowed
Request a quote
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we will arrange one.
Related advice
Compartment walls and floors in Hempstead
There are four care or nursing homes within about 2 miles of Hempstead. In a care home, any new pipe or cable through a fire-resisting wall should be sealed to the specified detail. Hempstead lies roughly 30 miles out from central London. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls.
Halls and meeting rooms at places like All Saints Church sometimes gain new services, and any compartment wall crossed needs the specified seal. Holiday works at schools like Hempstead Infant School often leave service openings to seal before pupils return.
Hempstead is about 2 miles south of Gillingham, in Medway. Across the ME7 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Across Medway, 54 places are covered, including Hempstead. For work in that direction, see our London page.
We cover the ME7 and ME8 postcode districts for service penetrations. We cover commercial and managed buildings on Harrow Road, Spekes Road and Capstone Road and the roads nearby. Access to Hempstead is via the A278, so getting applicators and materials to site is simple. Nearby places we also cover include Capstone (1 mile north-west), Darland (1 mile north-west), Wigmore (1 mile east), Hale (1 mile north-west) and Park Wood (1 mile east) for service penetrations. Nearby towns on our patch include Rochester (4 miles north-west), Strood (5 miles north-west), Hoo St Werburgh (5 miles north), Chatham Waterfront (3 miles north-west), Rochester Riverside (4 miles north-west) and Brompton (3 miles north-west).
Around Hempstead
Recent enquiries here include premises near Rainham School for Girls, Howard School and South Wood and the streets around them. For rail, the closest station is Rainham (Kent) station, about 2.1 miles north-east of the centre. Nearby you will also find Pentagon Shopping Centre (3 miles north-west) and Medway megaliths (3.8 miles south-west). Green spaces nearby include Burham Down and Boxley Hills.