Hampshire · England

Fire Rated Sealant in Southington

We cover Southington for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly.

  • Open holes round services passing through fire walls
  • Seals cut through by electricians, plumbers or data installers
  • Gaps left after a refit or conversion

Fire rated sealant in Southington

Fire rated sealant for homes and businesses in Southington

Later work by other trades often breaks through fire stopping, especially in flats, HMOs, offices and schools. One new cable or pipe can leave a gap that nobody goes back to seal. Those are the gaps we close, using a tested fire-rated product. We work on linear gaps, door frames and service penetrations, and people most often call us about gaps filled with a product that isn’t fire-rated and gaps where walls meet ceilings or slabs.

Work in a small place like Southington is planned ahead, journey included, so it can be fitted around guests, clients or events where possible.

There’s a 12-month guarantee on every job, large or small.

Eleven members of the Mr Mastic team standing in front of branded white vans
Where
Southington (RG25)
Region
Hampshire
Cover
One year on every job
Quotes
A clear quote up front
Call
0345 464 0079
Last updated
26 October 2026

Commercial buildings in Southington

In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, which is often where open fire-stopping gaps are first noticed. We work to the specification you are given, installing the product to its tested details.

For buildings such as Church of St Mary, service openings in its walls need the right fire-rated sealant, as in any building. For landlords with property near Overton station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.

Southington is about 8 miles west of Basingstoke, in Hampshire. Homes, rented property, offices and hotels in Southington can book us for fire rated sealant, old or new, large or small. The work is guaranteed for a year. Southington is one of 683 towns and villages in Hampshire where we work for fire rated sealant. We also work in Reading, about 19 miles from Southington.

Our applicators cover all of the RG25 postcode area for fire rated sealant and the streets around it. Local streets include Vinns Lane, London Road and Dellands Lane, and we cover them all. We also cover the places around Southington: Overton (1 mile east), Quidhampton (1 mile north-east), Laverstoke (1 mile south-west), Freefolk (1 mile west) and Wells-in-the-Field (2 miles west). Further out, we also cover Basingstoke (8 miles east), Winchester (13 miles south), Andover (9 miles west), Alton (14 miles south-east), Tadley (10 miles north-east) and Hook (14 miles east).

Landmarks near Southington

Locally, jobs take us to homes and businesses close to The Greyhound pub and the streets around them. The closest station to Southington is Overton station, about 1.1 miles north-east of the centre. For a walk, there’s Ladle Hill.

Map of Southington © OpenStreetMap contributors

Should I try it myself first?

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

What the job involves on each surface

Plasterboard walls

Service holes in plasterboard are often rough and oversized. Gaps that are too big for sealant alone need a different detail.

Door frames

Frame gaps are usually hidden behind the architrave. Where it’s open, we seal it to the product’s details for that gap size.

What happens on the day

Most of a good job is in the preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it normally takes a few hours for a handful of gaps, and longer for a whole building. For a village or hamlet like Southington, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. Access to each area is agreed so the work can run in order.
  2. We take out any damaged or unsuitable sealant.
  3. Gaps are cleaned of dust and loose material.
  4. We apply and tool the sealant to the product’s tested detail.
  5. We record what was done and flag anything that needs a different system.

How to prepare

  • Keep children and pets away from the work area
  • Let us know about earlier repairs to the joints
  • Let us know if you’ve seen damp or leaks

Getting a quote

Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand, and we’ll take it from there.

Get a price

Advice

Honest limits

We’d rather tell you now than do work that will not last, so these are the limits:

  • Walls or floors that weren’t built to resist fire
  • Large holes that need a different fire-stopping system
  • Fire doors that need new seals, closers or hardware

If you’re not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer.

What we seal

  • Door frames
  • Service penetrations
  • Plasterboard & masonry
  • Linear gaps
  • Flats & HMOs
  • Pipe & cable gaps

What we are called out for in Southington

Over time, buildings change layout and use. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.

Signs it’s time to call us include:

  • Ordinary sealant used where a fire-rated product was needed
  • Seals cut through by electricians, plumbers or data installers
  • Old fire sealant that has split or come away
  • Sealant items on a fire risk assessment action list

For site and facilities teams at buildings such as Overton Church of England Primary School, service openings in fire-resisting walls need checking after any refurbishment.

What to look for in a quote

  • Who does the work, and how experienced they are
  • What the cure time is
  • Is VAT in the price?
  • Whether you can choose the colour

Our hiring checklist

Why it’s worth doing now in Southington

Doing it once, properly, beats doing it twice. If the details weren’t followed, the seal may need redoing when the building is next checked. Older cottages and farmhouses around Southington can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.

What you get with us

  • 20+ years of sealant experience
  • Full insurance on every job
  • 4.9 on Google from 180+ five-star reviews
  • Approved under the ARBOMaster scheme

Take a look at our cost guide and what customers say.

Questions from Southington

Will you come out to Southington?

Yes, Southington is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Can you help a landlord with a rental near Overton station?

Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear price.

Do you have insurance?

Yes. We’re fully insured, and we have been doing sealant work for more than 20 years.

Can you do several jobs on one visit?

Yes. More than one area can go on one quote.

Do you offer different sealant colours?

Most of the time, yes. We will tell you which colours the right product comes in and agree one before any work starts.

Is it OK to seal over old sealant?

No, it will not last. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.

Does someone need to be in?

Access is agreed with you when the job is booked. For inside work, that normally means someone being in.

Can I use normal mastic around a pipe through a fire wall?

No. It looks sealed but won’t perform as fire stopping. Use a product tested for that gap and service, or ask us to do it.

How we quote for fire rated sealant

Jobs vary more than people expect. The main factors:

  • How many rooms, windows or areas are involved
  • Mould in or behind the old joints
  • The old material and how stubborn it is
  • How easy the joints are to reach

Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.

What we need to know

The more you tell us, the more accurate the quote. When you ask for a quote, tell us:

  • If it’s domestic, commercial or a hotel
  • What the problem is, such as mould, gaps, leaks or cracking
  • Where the job is, and your postcode
  • How we’d reach the joints

We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or send us an email.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job