Fire Stopping in Great Horwood
Fire-rated and intumescent sealing of service penetrations and linear gaps across Great Horwood, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Builders’ foam or ordinary silicone in compartment walls
- Unsealed openings around new pipes and cables
- Fire-stopping items raised at inspection or handover
Fire stopping for businesses in Great Horwood
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Fire stopping for commercial buildings in Great Horwood
Fire-rated sealant suits many small service penetrations: copper and steel pipes, cables and some small ducts where the tested detail allows. Larger openings and some plastic pipes call for collars, wraps, batts or boards instead. We use sealant where it is the specified product, and we tell you when a detail calls for something else. We work on pipe penetrations, cable penetrations and joints between fire-resisting walls and floors, and the failures we’re asked to look at most are old intumescent sealant that has split away and openings left by services added after handover. One point of contact handles commercial sealant work in Great Horwood from the first photos to the final walk-round, whether it’s one building or several.
Barn and farm-building conversions near places like Great Horwood often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.
The 12-month guarantee covers our workmanship: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Place
- Great Horwood (MK17)
- Wider area
- Buckinghamshire
- Guarantee
- 12 months on every job
- Quotes
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Diagnose, treat, sign off
At the end of each section, the masking comes off, the area is cleaned and every joint is checked. Where the sealant needs time to cure before use, we tell you and sign the area. Smaller jobs around Great Horwood can be grouped with others nearby. A fixed quote is given before anything starts.
- First we go through the drawings, schedule or specification for the seals and raise any questions before we price.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- Mineral wool or other backing goes in wherever the detail asks.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- If an opening needs something other than sealant, we tell you instead of improvising.
Preparing the site
- Flag any permit to work we will need
- Explain the parking and delivery arrangements
- Warn occupants and staff about the work
Ask for a quote
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, give us a call on 01277 525 020 or use the quote form.
Advice
Places near Great Horwood
Also in Great Horwood
When it isn’t the sealant
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Large openings beyond what any sealant detail covers
- Designing or specifying fire stopping, which sits with the designer or fire engineer
- Gaps in walls that were never built as compartment walls
Not sure which it is? You can phone 01277 525 020 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Service gaps in risers
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Cable penetrations
Keeping the joints sound
Regular inspection catches problems early. Specifically:
- Report damaged or disturbed seals as soon as they’re spotted
- Check with the data sheet before painting over fire sealant
- Keep general-purpose fillers away from compartment walls
- Look above ceilings when tiles are lifted for other jobs
After every round of M&E works, check that the openings created have been sealed. Building it into each contractor’s sign-off keeps the walls intact.
Keep a register of where seals are and what they are made of. It tells the next contractor exactly what to reinstate, and it helps at inspections.
What affects the price in Great Horwood
Your fixed quote is built from the real scope. It takes account of:
- How much there is to seal
- Whether the work must be split into stages
- Access and working height
- The site’s rules and procedures
Access often affects the price as much as the sealing: 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.
Sending details for a quote
To price the job accurately, we need a clear picture of the site. Useful things to include:
- Approximate linear metres or a joint schedule
- The type of building and who uses it
- How the joints are reached, and at what height
- Clear photos of the problem areas
Send us photos, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.
What happens if it’s left?
A seal that doesn’t match its tested detail gives false comfort. Correcting it means cutting it out and starting again with the specified product, so it makes sense to get it right first time. Around Great Horwood, it’s better to renew all the failing joints at once, rather than one at a time. Send photos of each area and we’ll quote for the lot.
The price depends on how many linear metres there are, what has to come out first and the access. Call for a quote when you are ready.
Why choose Mastic Doctor in Great Horwood
- 12-month guarantee on workmanship
- Public liability insurance in place
- Work carried out by CSCS-carded applicators
- CHAS accredited
Read how commercial sealant jobs are priced or our accreditations.
How the job changes by surface
Masonry and concrete
Core-drilled holes are neat; broken-out ones rarely are. Each gap is measured where it is widest against the detail’s limits, and any that don’t are flagged.
Cables and cable bundles
Data cabling added after handover is a regular cause of open service penetrations. We reseal around them to the specified detail.
Where services cross fire walls in Great Horwood
For England, the fire stopping of penetrations is dealt with in Approved Document B. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail. Great Horwood lies roughly 47 miles out from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls.
Large healthcare estates like Buckingham Community Hospital (to the north-west of Great Horwood) change their services often, so penetration seals are worth checking after M&E work. In a building such as Church of St James, any service penetration through a fire-resisting wall should be sealed to the specified detail. At a university such as University of Buckingham, which lies west of Great Horwood, labs, lecture blocks and residences are re-serviced often, so penetration seals are best checked after M&E work.
Great Horwood is about 5 miles east of Buckingham, in Buckinghamshire. Businesses, contractors and managing agents in Great Horwood use us for work on service penetrations. Our Buckinghamshire coverage takes in 308 places, from busy centres to rural villages. Our Oxford page has more on work in that area (22 miles or so).
Work on service penetrations is covered throughout MK17, whatever the building. Among the streets we cover are High Street, The Green and Willow Road, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Little Horwood (1 mile east), Nash (2 miles north), Winslow (2 miles south), Whaddon (3 miles north-east) and Swanbourne (3 miles south-east). Further afield, our area takes in Aylesbury (11 miles south), Buckingham (5 miles west), Elmhurst (11 miles south), Southcourt (12 miles south), Haydon Hill (10 miles south) and Turnfurlong (12 miles south).
Near you in Great Horwood
Locally, jobs take us to sites close to The Crown pub and Sir Thomas Fremantle School. Other landmarks nearby include Buckingham Community Hospital (5 miles north-west) and Drayton Parslow Mound (4.2 miles south-east). Green spaces nearby include Buckingham Sand Pit.
Your questions answered
Does your area include sites such as Greenway Business Park, near Great Horwood?
Yes. Estates, retail parks and business parks around Great Horwood, Greenway Business Park among them, are all within reach. A few photos and the unit address let us price the work.
Can work at a site such as University of Buckingham fit around teaching?
Yes. We plan campus work around teaching, exams and residence turnarounds. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Do you seal on top of existing sealant?
No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.
Do you certify or sign off fire stopping?
No. Approval sits with the designer, principal designer or building control. We will confirm the product and detail installed and agree any further records when we quote.
Are you members of a third-party fire-stopping installer scheme?
No, and we’d rather be clear about that. Third-party schemes aren’t a legal requirement, but many clients and main contractors ask for them, so it’s worth checking what your contract says. Where it isn’t required, we install the specified sealant to the maker’s details.
Can weather delay the job?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.
Do you work in Great Horwood?
Yes. We cover Great Horwood, within our coverage of Greater London, South East England and Scotland. To discuss a job, call 01277 525 020 or email the details over.