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

Sealant specialists in Thruxton

Sealant work for offices, shops, hotels and other commercial buildings in Thruxton and across Hampshire. CHAS accredited and fully insured, with a 12-month guarantee.

  • Damp patches where an external joint has failed
  • Wall and floor joints that have lost their seal
  • Sanitary sealant that has gone black and patchy
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Commercial sealant contractors across Thruxton

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

What we can’t put right

Part of a good diagnosis is knowing where sealant stops. You will hear from us if the cause turns out to be any of the following:

  • Misted, cracked or failed glazing units (a glazier’s job)
  • Leaks from pipework, wastes or valves (that’s plumbing)
  • Walls or slabs moving more than any sealant can take

If in doubt, call 01277 525 020 or use the quote form and we will say what we think before you book.

Where we work in Thruxton

  • Kitchen worktops and splashbacks
  • Movement joints in walls and floors
  • Floor and threshold joints
  • Window and door perimeters
  • External facade joints
  • Washrooms and tea points

How we handle commercial sealant contractors in Thruxton

Having a single contact for all your sites makes sealant far simpler to manage. We take on one-off reseals, runs of jobs across a portfolio and planned maintenance programmes, handled with the same process each time: details in, a fixed quote back, the sealing done, then our 12-month guarantee. To get a programme moving in Thruxton, ring 01277 525 020 or email the details over with the site addresses. We work on external facade joints, floor and threshold joints and washrooms and tea points, and what we are called in for most is earlier reseals applied straight onto the failed bead and leaks that seem to come through a sealant line. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Thruxton, that means joint design, primers and backing rod as standard.

On a typical commercial building in Thruxton, the joints that fail first are the hardest-worked ones: south-facing perimeters, entrance thresholds and busy washrooms.

Work in smaller places such as Thruxton tends to come one building at a time: a pub kitchen, a hall, a small office. We plan the visit so everything on the list is done in one go, with the right products and colours on hand.

Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

Location
Thruxton (SP11)
Region
Hampshire
Guarantee
12 months on every job
Quotes
Quoted before any work starts
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Maintenance after handover

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:

  • On pre-2000 buildings, share the asbestos information before work starts
  • Have extract fans checked so wet areas dry out
  • Report cracked or peeling sealant early
  • Ask cleaners to use a soft cloth and mild cleaner on sealant

In washrooms and kitchens, extraction makes a real difference to sealant life. Fans that are broken or switched off leave joints damp for longer, and mould follows damp. It’s worth having fans checked while the sealant is fresh.

Movement joints that fill with debris stop working. With nothing soft to close against, the materials either side take the load and start to break up. At that point it’s a repair job rather than a reseal.

Sealant on show in Thruxton’s commercial buildings

Thruxton sits in one of the drier corners of the country, the South East. That helps, but frost and condensation on glass and coated frames still stop outside sealing on some winter mornings. Less than 3 miles from Thruxton there are at least three named estates and business parks. Tenant changes on such sites bring fit-outs, and fit-outs bring new joints.

Shops and cafés around stations like Grateley station (3.2 miles south-west of Thruxton) trade from early, so work is timed around them. Parks like Weyhill Business Park (to the north-east of Thruxton) see tenants come and go, and every move-in brings joints to seal. A business with units at Weyhill Business Park and Plot 5 Andover Business Park needn’t use two contractors for its sealant.

Thruxton is about 4 miles west of Andover, in Hampshire. Any commercial site in Thruxton is covered. Thruxton is one of 723 places in Hampshire on our list for sealant joints. Our Southampton page has more on work in that area.

Business premises anywhere in SP11 are within our area. We cover commercial and managed buildings on Lambourne Way, Lambourne Close and Stanbury Close and the roads nearby. Nearby places we also cover include Mullenspond (1 mile east), East Cholderton (1 mile south-east), Fyfield (1 mile north), Weyhill (1 mile north-east) and Appleshaw (2 miles north-east). Further afield, our area takes in Andover (4 miles east), Hyde (15 miles south-east), Tidworth (4 miles north-west), Weeke (14 miles south-east), Stanmore (15 miles south-east) and Ludgershall (3 miles north-west).

Local landmarks in Thruxton

In Thruxton, that means premises near The George Inn. The closest station to Thruxton is Grateley station, about 3.2 miles south-west of the centre. Well-known places in the area include Andover War Memorial Hospital (3.9 miles east) and Ludgershall Castle (3.8 miles north-west). Not far away are Anton Lakes and Quarley Hill.

Map of Thruxton © OpenStreetMap contributors

How a job runs

A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself normally takes as long as the agreed scope needs, from a single visit to a programme spread over several weeks, and we clear our waste as we work. Smaller jobs around Thruxton can be grouped with others nearby, which keeps travel down. You will have a fixed quote before work starts.

  1. We begin with whatever information you have, whether that’s photographs, a drawing or a list of locations.
  2. Next comes a diagnosis and a fixed quote.
  3. We plan around your site hours and access windows, phasing the work where areas have to stay in use.
  4. The failed bead is removed and the joint faces cleaned until they’re sound and dry.
  5. The depth is set, primer is used where the maker calls for it, and the fresh bead is applied and tooled.
  6. We walk the completed areas with you and sign them off under the 12-month guarantee.

Before we start on site

  • Warn occupants and staff about the work
  • Tell us what induction or permit system the site runs
  • Tell us your opening times and when work is allowed

Request a quote

Every quote starts with the facts: the joints involved, quantities, access and the product called for. Send what you have, and we will arrange a site visit if anything is unclear.

Get a price

Advice

Your questions answered

Do you offer colour-matched sealant for buildings in Thruxton?

Yes, sealants come in a wide range of standard colours, and matching to RAL references, cladding, stone or frames is a common request. The quote lists the colours the product is made in.

Does your area include sites such as Weyhill Business Park, near Thruxton?

Yes. Our area takes in Thruxton and its surroundings, with estates and business parks such as Weyhill Business Park included. Photos and a short description are enough for a first look.

Could the old sealant in an older building contain asbestos?

We check the asbestos register or survey before any old sealant is disturbed. The duty to manage asbestos sits with the dutyholder.

Is Thruxton in your area?

Yes. We cover Thruxton, and the simplest way to start is to ring 01277 525 020 or email a schedule or drawings.

Can areas stay open during the work?

We phase the work so parts of the building stay open. We plan around the site hours and access windows you give us.

Will you just go over the old sealant?

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

Can you work to our specification?

Yes. Include it with the drawings when you ask for a quote, and we will price the work to it.

Building owners, agents and FMs in Thruxton

CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.

If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

Doing it in-house

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we will confirm the paperwork you need with the quote.

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.

What the job involves on each surface

Fire-rated seals where specified

Not every penetration suits a sealant. Other products, such as collars, wraps and batts, are specified for different services, and we will tell you if the detail calls for something else.

Movement joints in walls and floors

Movement joints in walls and floors let the structure expand and contract. When the seal fails, debris gets in and the joint stops working. The joints are resealed using a sealant matched to the movement and any traffic.

Accreditations

Trusted. Accredited. Insured.