
Fire-rated sealing and fire stopping in Newnham, Kent
Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Newnham and nearby, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Improvised or mixed-product fire seals
- Builders’ foam or ordinary silicone in compartment walls
- Snag lists that include open service penetrations
Need fire stopping in Newnham?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Fire stopping in Newnham
Most of our fire stopping work happens after the building is up. New cable runs, replaced pipework and extra data routes all punch holes in compartment walls, and they are easy to forget. Those on your schedule are closed with the specified product. Site teams most often ask us about damaged fire seals in risers and voids and old intumescent sealant that has split away, on joints between fire-resisting walls and floors, linear gaps at wall heads and service gaps in risers. Whoever orders the work in Newnham, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.
Around smaller places like Newnham, penetration seals come up in schools, halls, pubs with rooms, care homes and farm buildings used as offices. If sealant is what the specification names, we install it around the services exactly as the maker’s detail sets out.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.
- Location
- Newnham (ME9)
- Region
- Kent
- Guarantee
- 12 months on every job
- Quotes
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026

Diagnose, treat, sign off
Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself usually takes anything from one day to a planned run of visits, depending on the number of seals and the access, and we clear our waste as we work. Smaller jobs around Newnham can be grouped with others nearby, which keeps travel down. You’ll have a fixed quote before work starts.
- We start with your penetration schedule, drawings or specification.
- Access, permits and the order of areas are agreed with the site team.
- We compare every service penetration with its tested detail before sealing.
- Unsuitable material is removed and the opening cleaned so the seal starts clean.
- The specified backing and sealant go in to depth and are finished neatly.
- Anything outside the detail is reported to you rather than sealed.
What we need from you
- Share the asbestos register for older buildings
- Confirm the product named in the specification
- Let us know about inductions and permits
Request a quote
Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.
Read more
Common questions from Newnham clients
Can you produce the fire-stopping design for a job in Newnham?
No, that sits with the designer, fire engineer or building control. Our part is installing the specified product to its tested detail, and telling you if the detail calls for something other than sealant.
How does the removal of BS 476 from Approved Document B affect fire-rated sealing in Newnham?
References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.
Are you insured?
Yes. Mastic Doctor is fully insured, public liability included.
Are you CHAS accredited?
Yes. We are CHAS accredited and a Constructionline member, which helps with supplier vetting.
What happens if old sealant might contain asbestos?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.
How long will the new sealant last?
There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
Can you handle several sites?
Yes. Several buildings can share a single quote, and you deal with one contact throughout across South East England, Greater London and Scotland.
Commercial clients in Newnham
Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.
FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
Fire-rated sealing for Newnham buildings
Newnham is about 41 miles from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls. Fire stopping of openings and penetrations in England falls under Approved Document B. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. What we install is set by the specification, and it goes in to the tested detail.
Schools such as Eastling Primary School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards. Halls and meeting rooms at places like Church of St Peter and St Paul sometimes gain new services, and any compartment wall crossed needs the specified seal.
Newnham is about 4 miles south-west of Faversham, in Kent. Across the ME9 postcode area, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. We work across 931 places in Kent, from busy centres to rural villages. For work in that direction, see our London page.
Business premises anywhere in ME9 are within our area. Among the streets we cover are The Street, Sharsted Hill and Newnham Lane. Sites close to Newnham are covered too, including Doddington (1 mile west), Wichling (2 miles west), Bluetown (2 miles west), Hollybushes (3 miles west) and Payden Street (3 miles south-west). Bigger towns within reach include Maidstone (12 miles west), Ashford (10 miles south), Canterbury (12 miles east), Sittingbourne (5 miles north-west), Whitstable (11 miles north-east) and Faversham (4 miles north-east).
Around Newnham
Around Newnham, our work takes us to commercial buildings near The George Inn and Doddington Place Gardens and the streets around them. Newnham’s nearest station is Teynham station, about 3.4 miles north. A little further out are Newnham Castle (less than half a mile north-east).
How the quote is worked out
Before we quote, we look at:
- The product specified
- Any access equipment needed
- Removal of failed or old sealant
- Phasing around occupants
The price depends on the quantity of joints, how much old material needs removing and the access. Call for a quote when you’re ready.
Details that help us quote
The more we know, the firmer the quote. When you get in touch, include:
- Specification clauses that apply
- The postcode of the building
- Whether the building will be occupied during the work
- Your programme or deadline
The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or call the office on 01277 525 020 or email us if you’d rather talk the job through.
Aftercare for building managers
Cleaning and maintenance staff play a part too. Pass these on to them:
- Include service cupboards in routine inspections
- Ask the designer to confirm details early on refits
- Leave fire sealant to cure fully before covering it
- Get seals inspected before ceilings and boxing close
New services after handover are a common way fire stopping gets breached. Building it into each contractor’s sign-off keeps the walls intact.
Ask every contractor who works in risers or voids to report openings they create. Small habits like this stop openings building up.
Why it’s worth doing now in Newnham
Fire stopping is a regular point raised at inspections and handover. Finding unsealed or improvised openings late can hold up a programme. Older rural buildings around Newnham move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.
Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.
What you get with us
- Health and safety: CHAS accredited
- One number for every site we cover
- Work carried out by CSCS-carded applicators
- Fully insured
Take a look at how commercial sealant jobs are priced or how we’re accredited.
Surface by surface
Risers and ceiling voids
Service risers and the voids above ceilings are where openings collect. Access to these areas is planned with you in advance along with any permits your site needs.
Metal pipes
Heat travels along metal pipework, and some details add wrapping or a set length of insulation. If the detail needs something beyond sealant, we tell you.