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

Commercial sealant contractors in Farnborough, Hampshire

Commercial sealant contractors for Farnborough, from a contractor working since 2005. Fully insured and CHAS accredited.

  • External beads that have gone brittle and cracked
  • Black mould through washroom sealant that won’t clean off
  • Wall and floor joints that have lost their seal
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Commercial sealant contractors for businesses in Farnborough

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

When to call us in Farnborough

Plenty of failed joints were never sealed with the right product. Painters’ acrylic in a moving joint, vinegar-smelling silicone on metal or natural stone, or a high-modulus product where a low-modulus one was needed all let go sooner than they should. BS 6213 gives guidance on choosing construction sealants, and many specifications refer to it.

Things that normally lead to an enquiry:

  • External beads that have gone brittle and cracked
  • Water staining near frames, panels or ceilings
  • Greasy, split joints in a kitchen or tea point
  • Sanitary sealant that has gone black and patchy

For premises near Farnborough Main station, 0.5 miles to the east of Farnborough, footfall is part of the plan: work is phased so shops and offices keep trading.

Before you book anyone

  • Whether their applicators hold CSCS cards
  • Do they follow the manufacturer’s priming guidance?
  • What site paperwork they can supply
  • Health and safety accreditation such as CHAS

How to choose a sealant contractor

Commercial mastic work in Farnborough

On a commercial site, sealant turns up in more places than people expect: washroom fittings, kitchen worktops, window boards, partition heads and the line where floors meet walls. Externally it keeps rain out of frame perimeters, panel joints and movement joints. Our applicators work on both the inside and the outside of the building, matching the sealant to the location instead of using one product throughout. If you’re dealing with weathered facade sealant that no longer flexes and frame sealant that has cracked, shrunk or pulled away, we can put it right, whatever the surface. Facilities teams, main contractors and managing agents in Farnborough tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

In Farnborough, as anywhere, the first joints to go are typically the ones that work hardest: south-facing perimeters, entrance thresholds and busy washrooms.

For a business or landlord in Farnborough with one or two premises, it makes sense to bundle sealant jobs together: a frontage, a staff washroom, a kitchen and a few window perimeters, for instance. A single fixed quote covers everything on the list.

We stand behind the joints we seal: 12 months, guaranteed. That covers our preparation and application, and if something we did falls short, we return to it.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Farnborough (GU14, GU11, GU17)
Wider area
Hampshire
Cover
12 months on our workmanship
Quote
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026

FAQs: Farnborough

Is Invincible Road Industrial Estate, near Farnborough, within your area?

Yes, sites like Invincible Road Industrial Estate are within our area, along with the rest of Farnborough. Photos and a short description are enough for a first look.

Can the sealant on our Farnborough premises match the finishes?

Yes, we can typically get close to most finishes from the product’s colour range. The quote lists the colours the product is made in.

Can you take on work for an FM or managing agent?

Yes. FMs, managing agents and landlords are among our regular clients as well as contractors. Tell us how you issue work and we will fit in.

How do you keep disruption to occupiers down?

It’s normal for us to work in occupied buildings. We agree the order of areas, protect what’s nearby and close off only the section we’re sealing.

Is your work guaranteed?

Our workmanship is guaranteed for 12 months. Public liability insurance is in place too.

Do you work to architects’ specifications?

Yes. The specification and the manufacturer’s installation guidance are what we work to.

How do you choose the sealant?

Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

What the job involves on each surface

Movement joints in walls and floors

Floor joints that take trolleys or forklifts need a tougher filler or sealant. We will recommend the right filler or sealant for the traffic and movement; if the arrises are broken, we will say so before sealing.

Fire-rated seals where specified

Where the specification calls for fire-rated or intumescent sealant around service penetrations or linear gaps, we install it to the product’s tested detail. Fire-stopping design and sign-off sit with the designer, fire engineer or building control, and we install to the specification.

Building owners, agents and FMs in Farnborough

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Farnborough can form part of a wider programme across Hampshire.

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.

Aftercare for building managers

For the best life from the joints:

  • Deal with small splits before they become leaks
  • Check sealant as part of routine building inspections
  • Look at the sealant around anything that has been moved or replaced
  • Keep a record of which joints were resealed and when

Keep an eye out for other trades after we’ve gone. Shop refits, new services and replaced fittings often break the seal around them and the joint gets left open. If that happens, call the office on 01277 525 020 or send photos by email and we’ll price putting it right.

Sealant installed at the same time typically fails in sequence. The first failures are often a warning about the rest, so it makes sense to look at the wider elevation or block. We can assess the lot and suggest what to do now and later.

On site: what to expect

At the end of each section, the masking comes off, the area is cleaned and every joint is checked, ready for your sign-off. If an area should be left alone while the sealant cures, we say how long and put signs out. Town-centre premises in Farnborough may have limited parking, so tell us what’s nearby. On estates and business parks it’s normally simpler.

  1. We start with the evidence: photos, drawings or a look on site.
  2. A fixed quote follows, with removal and preparation included.
  3. We agree the order of work, access windows and site hours with you.
  4. Each joint is stripped, cleaned back to sound faces and primed where the maker specifies.
  5. Depth is set with backing, then the sealant is applied, tooled and the area tidied.
  6. Completed areas are signed off with you under our 12-month guarantee.

Getting the site ready

  • Have the specification and drawings to hand
  • Send asbestos survey details if the building is pre-2000
  • Flag any permit to work we’ll need

Get a fixed quote

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, call 01277 525 020 or email a schedule or drawings.

Get a price

Advice

What Farnborough’s businesses ask us to seal

Farnborough lies roughly 32 miles out from central London. The commuter belt holds a great many offices, retail parks and business parks. Firms with branches across the South East can use one contractor for every site. Three care or nursing homes sit less than 2 miles from Farnborough. In care settings, a neat joint at a kitchen worktop or a lounge window is part of keeping the place easy to clean.

If you run a unit on an estate such as Invincible Road Industrial Estate, which lies south of Farnborough, the trade counter, offices and staff facilities have joints to look after as well as the warehouse. For a hotel such as Village Hotel, 0.6 miles south-east of Farnborough, the colour of a joint at the bar or the bath matters to the look of the room.

Farnborough is about 31 miles south-west of City of Westminster, in Hampshire. We send applicators to Farnborough for sealant joints. 723 places across Hampshire fall within our area, Farnborough among them. There’s a separate page for Reading, about 14 miles away.

If you need commercial sealant contractors in GU14, GU11 and GU17, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on Wallis Square, Church Road West and Longleat Square and the roads nearby. Being close to the A325 and A327, Farnborough is straightforward for us to reach. Nearby places we also cover include Cove (1 mile west), North Camp (1 mile south-east), Southwood (1 mile west), Mytchett (2 miles east) and Ash Vale (3 miles south-east). Further afield, our area takes in Basingstoke (15 miles west), Fleet (3 miles south-west), Alton (13 miles south-west), Yateley (4 miles north-west), Bordon (13 miles south) and Hook (8 miles west). Farnborough is one of the busier places in Hampshire, and its commercial and public buildings are all within our area.

Around Farnborough

Locally, jobs take us to sites close to The Tilly Shilling pub, Henry Tyndale School and Snaky Lane Community Wildlife Area. Other local landmarks include National Aerospace Library (0.8 miles south-east) and Cove School (0.6 miles north-west). Farnborough’s nearest station is Farnborough Main station, about 0.5 miles east. Well-known places in the area include Frimley Park Hospital (2 miles north-east) and Hart Shopping Centre (3.3 miles west). Green spaces nearby include Aunt's Pool and Ball Hill.

Map of Farnborough © OpenStreetMap contributors

What sets the cost

What shapes the price:

  • Removal of failed or old sealant
  • Induction, permit and paperwork requirements
  • How accessible the joints are
  • Phasing around occupants

The product called for affects the cost, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.

Before you send an enquiry

Diagnosis starts before we arrive. Let us know:

  • Specification clauses that apply
  • Asbestos survey details if the building is older
  • How the joints are reached, and at what height
  • A wide shot and a close-up of the area

The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or phone 01277 525 020 or use the quote form to discuss it first.

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