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

Fire-rated sealing and fire stopping in Hawley, Hampshire

Fire-rated and intumescent sealing of service penetrations and linear gaps in Hawley. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Openings left by services added after handover
  • Unsealed joints where partitions meet the slab
  • Old intumescent sealant that has split away
1
Send details
Photos, drawings or a schedule, or we 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
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Fire stopping for businesses in Hawley

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Work for main contractors and building owners

Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.

Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.

Fire stopping in Hawley, done properly

It helps to set out our role at the start. The designer, fire engineer or building control decides which fire stopping is required; sign-off sits with them too. We fit the specified fire-rated sealant following that specification and the maker’s installation guidance on buildings around Hawley. The enquiries we see most involve unsealed openings around new pipes and cables and fire stopping installed outside its tested range, across service gaps in risers, joints between fire-resisting walls and floors and cable penetrations. Searching for sealant specialists in Hawley? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.

Buildings in a smaller place such as Hawley that need fire-rated sealing are typically schools, care homes, surgeries, small offices and flats over shops. Around those penetrations, fire-rated sealant is installed if specified, with depth, backing and gap all as tested.

We stand behind the joints we seal: 12 months, guaranteed. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Hawley (GU17)
Wider area
Hampshire
Guarantee
A 12-month guarantee
Quote
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026

How the job changes by surface

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.

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.

Fire stopping around Hawley: what changes locally

The 2 miles around Hawley include three care or nursing homes. Where new services have gone through compartment walls in a care setting, the gaps need the specified product. 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. Either way, we install the specified product to its tested detail.

Offices at parks like The Meadows Business Park, less than half a mile north of Hawley, are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail. Hospital estates such as Frimley Park Hospital, 1.7 miles east of Hawley, are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail.

Hawley is about 2 miles south of Sandhurst, in Hampshire. Any commercial site in Hawley is covered. Across Hampshire, 723 places are covered, including Hawley. Sites around Reading have their own page, about 12 miles away.

We cover the GU17 postcode districts for service penetrations. If your site is on London Road, Hawley Green and Fernhill Road or close by, we can quote for service penetrations. Hawley sits on or close to the A30, which helps when planning parking and deliveries for the job. We also cover Watchmoor (1 mile east), Blackwater (1 mile north-west), Frogmore (1 mile north-west), York Town (1 mile north-east) and College Town (1 mile north). Nearby towns on our patch include Basingstoke (15 miles west), Fleet (4 miles south-west), Aldershot (6 miles south), Alton (15 miles south-west), Bordon (15 miles south) and Hook (8 miles west).

Around Hawley

We work on buildings around Mr Bumble pub, Fernhill School and Language College and Royal Military Academy Library. There’s a railway station in Hawley itself: Blackwater station. A little further out are Staff College Museum (1.6 miles north-east) and Frimley Park Hospital (1.7 miles east). Green spaces nearby include Wildmoor Heath and Horseshoe Lake.

Map of Hawley © OpenStreetMap contributors

Common problems we fix in Hawley

Physical damage is another reason seals stop doing their job. Seals get knocked during maintenance, cut back to add a cable or pulled out when services are swapped and the opening isn’t always resealed.

Site and facilities staff are often the first to spot these:

  • Service penetrations left open after M&E works
  • Unsealed joints where partitions meet the slab
  • Openings found when ceilings come down for a refit
  • Damaged fire seals in risers and voids

Schools such as Hawley Primary School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards.

Before you book anyone

  • Their pre-qualification and accreditations
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • What the guarantee covers, and for how long
  • Will failed sealant be removed rather than covered?

Our contractor checklist

Why it’s worth doing now in Hawley

Sealing behind the M&E trades area by area beats a sweep at the end. Openings are visible, access is open and nothing has to be taken down. For buildings in places like Hawley, one well-planned visit beats several small ones, so we’d suggest renewing all the joints that are going, not just the worst.

We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote.

Why clients in Hawley choose us

  • Public liability insurance in place
  • Products installed to the manufacturer’s instructions
  • Sealing commercial buildings since 2005
  • Work carried out by CSCS-carded applicators

Read how commercial sealant jobs are priced and how we’re accredited.

Looking after the joints

Regular inspection catches problems early. In particular:

  • Report damaged or disturbed seals as soon as they’re spotted
  • Settle who seals which penetrations at the start of a project
  • Get seals inspected before ceilings and boxing close
  • Ask which product is in place before decorating

Once the seals are in, tell other trades they exist and must not be disturbed. If a seal has to be opened for a new service, it should be reinstated to the same detail.

Write fire stopping into the scope of any work crossing a compartment wall or floor. That way the opening is sealed while the trade and access are still there instead of being left for someone else.

Our process

Inspect, seal, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. What matters most for a job in Hawley is a clear list of what needs doing. A fixed quote follows.

  1. The specification and schedule come first, so we know which details apply.
  2. Access, permits and the order of areas are agreed with the site team.
  3. Each opening is checked for wall or floor type, service, gap and depth.
  4. Unsuitable material is removed and the opening cleaned first.
  5. Backing and fire-rated sealant are installed to the detail and tooled.
  6. Anything outside the detail is reported to you rather than sealed.

What we need from you

  • Clear stock, furniture or equipment away from the joints
  • Flag any permit to work we’ll need
  • Tell us your opening times and when work is allowed

Request a quote

Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. For smaller jobs, photographs and a description will do.

Get a quick quote

Read more

Your questions answered

Would you work within a site like Frimley Park Hospital?

Yes, provided the work is planned with the site’s estates team. Each area is agreed with the ward or department and the estates team in advance.

Can work in a care setting near Hawley go ahead while residents are there?

Yes. Care settings are planned area by area, at times agreed with the home. Tell us about any infection-control or safeguarding requirements and we’ll work to them.

How long do sealant joints last?

Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.

What will the job cost?

We don’t publish prices, because every site is different. With photographs or drawings, we can give you a fixed quote.

Will you quote for a small job?

Small jobs are welcome alongside larger packages. Send details for a fixed quote.

Will you write the fire-stopping specification?

No, that isn’t our role. With the designer’s details in hand, we can price the sealant elements.

Do you hold third-party fire-stopping installer certification?

No, and we won’t imply otherwise. Third-party schemes aren’t a legal requirement, but many clients and main contractors ask for them, so check your contract first. If it doesn’t require one, we can install the specified fire-rated sealant to its tested detail.

Accreditations

Trusted. Accredited. Insured.