The Mastic Doctor team standing beside their branded vans outside an office building
Surrey · England

Fire-rated sealing and fire stopping in Horton, Surrey

Need fire stopping in Horton? It’s simple: send details, get a quote, we seal, guaranteed.

  • Unsealed penetrations discovered above suspended ceilings
  • Unsealed joints where partitions meet the slab
  • Penetration schedules that need working through
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Need fire stopping in Horton?

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

How we handle fire stopping in Horton

Fire-rated sealant suits many small service penetrations: copper and steel pipes, cables and some small ducts where the tested detail allows. Other openings need collars, wraps, batts, pillows or boards. We use sealant where it is the specified product, and we tell you when a detail calls for something else. If you have unsealed joints where partitions meet the slab and service penetrations left open after M&E works, we can help, whatever the surface. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Horton is the same: the right product in a properly prepared joint.

A job near Horton is usually planned around one visit, so send the specification and photos first. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.

We stand by our work: 12 months, guaranteed. It covers how we prepared and applied the sealant.

Location
Horton (KT19, KT9)
Wider area
Surrey
Guarantee
12 months on our workmanship
Quotes
Quoted before any work starts
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

How the job changes by surface

Small ducts

Small ductwork can sometimes be sealed with sealant where the tested detail includes it. Larger or fire-rated ductwork usually needs a different solution set by the designer and we flag that rather than guess.

Linear joints

Joints at the top of partitions may need to move as the slab above deflects. The specified product and backing for that movement are what goes in, with no gaps along the run.

Work for main contractors and building owners

Building owners and managing agents use us on everything from one building to a spread of sites. Several sites can go on one quote, so there’s one set of paperwork to deal with.

Hospitality, education, healthcare, office and retail clients come to us directly as well. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.

Keeping the joints sound

Keep the joints in good shape with a few simple steps:

  • Include service cupboards in routine inspections
  • Brief every trade that openings they make must be sealed
  • Have penetrations checked while they can still be seen
  • Report damaged or disturbed seals as soon as they’re spotted

New services after handover are a common way fire stopping gets breached. Building it into each contractor’s sign-off keeps the walls intact.

Regular walk-rounds of service areas are worth the time. Catching a damaged seal early keeps the fix small; found late, it can be one of many.

Your questions answered

How does the move away from BS 476 affect penetration seals in Horton?

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.

Is Horton off your patch?

No. Small places get the same service as large ones. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.

Is colour matching possible?

In many cases, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We confirm what’s available for the specified product when we quote.

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.

Can you follow the specification on our project?

Yes. We follow the specification, along with the manufacturer’s installation guidance.

Does the weather affect the work?

Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.

Will your applicators have CSCS cards?

Yes. We use CSCS-carded applicators, as many construction sites ask for.

Fire-rated sealing for Horton buildings

Horton is about 13 miles from central London. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls. A 2-mile radius around Horton takes in a number of hotels. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close.

Shop fits in centres such as The Ashley Centre (1.6 miles south-east of Horton) can bring new services through fire-resisting walls between units, which then need the specified seal. Campus buildings at universities such as University for the Creative Arts (to the south-east of Horton) see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified. At a healthcare site like West Park Hospital (0.8 miles south-west of Horton), new services through compartment walls are a constant, and each needs the specified seal.

Horton is about 1 mile north-west of Epsom, in Surrey. Horton sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Horton is one of 379 places in Surrey on our list for service penetrations. There’s a separate page for London, about 13 miles away.

We cover the KT19 and KT9 postcode districts. Streets here include Horton Lane, Oakwood Avenue and Jenner Way, and sites on any of them can send details for a fixed quote. We also cover Chessington (1 mile north), Epsom (1 mile south-east), Ewell (2 miles east), Old Malden (2 miles north-east) and Stoneleigh (2 miles north-east) for service penetrations. Bigger towns within reach include Guildford (14 miles south-west), Woking (12 miles west), Horley (13 miles south-east), Redhill (9 miles south-east), Egham (12 miles north-west) and Reigate (9 miles south-east).

Around Horton

Locally, jobs take us to sites close to Chessington Community College, Horton Country Park and Kingswood House School and the streets around them. Horton’s nearest station is Chessington South station, roughly 0.9 miles north-west of the centre. Well-known places in the area include Epsom Cluster (0.6 miles south-east) and Cockney Museum (2.1 miles north-east). Not far away are Bonesgate Open Space and The Lake.

Map of Horton © OpenStreetMap contributors

Leave it or put it right?

An open or wrongly sealed service penetration lets fire and smoke reach the next compartment much sooner than the building was designed for. Putting it right is usually a modest job when the openings are accessible. Left until ceilings are closed or a tenant moves in, the same work costs more access and more disruption. Converted and older buildings near places like Horton tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.

The price depends on the quantity of joints, what has to come out first and the access. Call for a fixed quote when you’re ready.

Why clients in Horton choose us

  • Over 20 years of commercial sealing
  • Work to your specification and the manufacturer’s guidance
  • Public liability insurance in place
  • A fixed quote before work starts

Take a look at what affects the cost or our accreditations.

How the quote is worked out

Before we quote, we look at:

  • Access and working height
  • Travel to remote or island sites
  • Which sealant the job calls for
  • Removal of failed or old sealant

Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote and we’ll explain how it’s made up.

Sending details for a quote

The more we know, the firmer the quote. Helpful details to send:

  • The type of building and who uses it
  • Your programme or deadline
  • Asbestos survey details if the building is older
  • A wide shot and a close-up of the area

Need a figure for a tender or a budget? We’ll quote against your scope and drawings you can plan around. If you have questions first, call the office on 01277 525 020 or email the details over.

How a job runs

We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. For a building around Horton, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.

  1. We read the specification, drawings or penetration schedule you send.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  4. We fit the backing the detail asks for, to the stated depth.
  5. We apply the specified sealant to the depth and around the services as the detail shows.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

What we need from you

  • Send any specification or drawings in advance
  • Make sure the joints can be reached
  • Let building users know which areas are affected

Getting a fixed quote

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, call the office on 01277 525 020 or send details through our quote form.

Get a quick quote

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Accreditations

Trusted. Accredited. Insured.