Surrex fire stopping
Fire-rated and intumescent sealing of service penetrations and linear gaps across Surrex, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Unsealed penetrations discovered above suspended ceilings
- Penetration schedules that need working through
- Non-fire-rated filler around services
Fire stopping near Surrex
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
About our fire stopping in Surrex
Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our part is installing fire-rated and intumescent sealant at those openings and along linear gaps, where the specification calls for it. We work to the product’s tested detail for every seal, not a rule of thumb. If you’re dealing with fire stopping installed outside its tested range and unsealed penetrations discovered above suspended ceilings, we can put it right, whatever the surface. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Surrex is the same: the right product in a properly prepared joint.
A job near Surrex is normally planned around one visit, with the specification and photos sent in advance. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.
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.
- Location
- Surrex (CO6)
- Wider area
- Essex
- Cover
- 12 months on every job
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Leave it or put it right?
A seal that doesn’t match its tested detail gives false comfort. The fix is to remove it and reinstall to the detail, so it makes sense to get it right first time. One visit to deal with every failing joint makes more sense than several trips to a place like Surrex, rather than one at a time. Send photographs of each area and we will quote for the lot.
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote.
Why choose Mastic Doctor in Surrex
- One phone line for London, the South East and Scotland
- Failed material removed, not covered up
- Clear, fixed quotes
- 12 months’ guarantee on every job
Read how commercial sealant jobs are priced or how we’re accredited.
Fire stopping in Surrex: the local picture
There are a number of hotels within about 2 miles of Surrex. Bedroom-to-corridor walls in hotels are normally fire-resisting, so new cabling or pipework through them has to be sealed to the tested detail. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail.
For a school such as Honywood Community Science School, penetration sealing fits best at the end of the summer works. Hotels such as Chapel Hotel, 1.2 miles to the west of Surrex, rely on fire-resisting walls between bedrooms and corridors, and refits that add services leave penetrations to seal where fire-rated sealant is specified.
Surrex is about 6 miles south-east of Halstead, in Essex. We cover Surrex, with the same fixed quotes and 12-month guarantee as everywhere else. 644 places across Essex fall within our area, including Surrex. For work in that direction, see our London page.
Work on service penetrations is covered throughout CO6, whatever the building. Streets here include Old Road and Colchester Road, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Skye Green (1 mile south-east), Broad Green (1 mile east), Stocks Green (1 mile south), Little Tey (1 mile east) and Feering (2 miles south) for service penetrations. Bigger towns within reach include Colchester (8 miles east), Chelmsford (14 miles south-west), Braintree (7 miles west), Maldon (10 miles south), Witham (6 miles south-west) and Camulodunum (7 miles east).
Local landmarks in Surrex
Recent enquiries here include premises near The Queens Head pub. For rail, the closest station is Kelvedon station, roughly 2.3 miles south. A little further out are Laundry & Mangle Museum (1.8 miles west) and Birch Castle (5 miles south-east). Green spaces nearby include Belcher's and Broadfield Woods.
Nearby places to Surrex
What else we do in Surrex
Different surfaces, different methods
Small ducts
Ducts are only sealed with sealant where the detail allows it. Dampers and ductwork systems themselves are outside our work.
Linear joints
Linear joints run along the head of a wall, at a slab edge or between two fire-resisting elements. Their tested detail, under BS EN 1366-4, sets the width, depth, backing and movement allowed and the installation has to fit inside those limits.
What affects the price in Surrex
These are the things that shape the price:
- Quantities, in metres or numbers
- Backing rod, priming and other preparation
- Whether the work must be split into stages
- Specialist products, such as fire-rated or hygienic sealants
We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we will price your job on its own details.
Sending details for a quote
It doesn’t need to be a full survey. These details are enough to start:
- The asbestos register, for older buildings
- When you need the work done
- A wide shot and a close-up of the area
- Where the site is, with the postcode
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, ring 01277 525 020 or email drawings and photos.
Looking after the joints
Problems stay small when the joints are checked regularly. In particular:
- Leave fire sealant to cure fully before covering it
- Treat an open penetration as a priority repair
- Put resealing into every M&E and fit-out package
- Agree the fire-stopping specification before services go in
After the work, brief anyone else working in the area that the openings are now sealed. Any seal cut back for a new service needs reinstating to its tested detail.
Make reporting new openings part of every permit to work in service areas. It costs little and catches breaches early.
From enquiry to sign-off
We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. Smaller jobs around Surrex can be grouped with others nearby. A fixed quote is given before anything starts.
- We read the specification, drawings or penetration schedule you send and ask about anything unclear.
- On site, each opening is checked against the tested detail it is meant to follow.
- Unsuitable fillers and loose debris are taken out of each opening.
- We fit the backing the detail asks for, to the stated depth.
- We apply the specified sealant to the depth and around the services as the detail shows.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
Getting the site ready
- Flag any permit to work we’ll need
- Let building users know which areas are affected
- Have the specification and drawings to hand
Getting a fixed quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price the work to it. Smaller jobs need nothing more than photos and a few notes.
Advice
Signs you need fire stopping in Surrex
Mixing products or improvising a detail breaks the link with the test evidence. An oversized gap, too shallow a bead, missing backing or two makers’ products combined are what we find most often.
Any of the following is a good reason to get the joints checked over:
- Service penetrations left open after M&E works
- Damaged fire seals in risers and voids
- Non-fire-rated filler around services
- Snag lists that include open service penetrations
Offices at parks like Threshelfords Business Park, 2.2 miles to the south of Surrex, are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail.
Comparing quotes
- Are they CHAS accredited or on Constructionline?
- What site paperwork they can supply
- Do they follow the manufacturer’s priming guidance?
- Will failed sealant be removed rather than covered?
Your questions answered
Do you work on fire-rated sealing in hotels in Surrex?
Yes, where fire-rated sealant is the specified product. Each seal follows the tested detail, and rooms are done in turn.
Is Surrex too small for you to travel to?
Not at all: smaller places are covered as well as towns. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.
Is it fine to apply new sealant on top of old?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, since fresh sealant will not bond reliably to aged material.
Are you CHAS accredited and on Constructionline?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member.
Does weather matter for sealant 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.
Do you work to architects’ specifications?
Yes. Send it with your enquiry, and the quote will be based on it.
How long will the new sealant last?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.