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

Commercial Sealant Contractors in Picket Piece

Sealant work for offices, shops, hotels and other commercial buildings throughout Picket Piece and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Expansion joints with the sealant torn out
  • Gaps behind commercial kitchen worktops and sinks
  • Earlier reseals applied straight onto the failed bead
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
Constructionline member
£5m PL insurance

Commercial sealant contractors across Picket Piece

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

About our commercial sealant contractors in Picket Piece

Failed sealant isn’t always the whole story. A leak near a frame edge can start in the frame, the cill or the cavity while a movement joint that keeps tearing may simply be too narrow for the job. Part of the job is telling you when the fix is something other than sealant. If you have layers of sealant, all of them failing and damp patches where an external joint has failed, we can put it right. Searching for sealant specialists in Picket Piece? Mastic Doctor has worked for contractors, FMs and building owners since 2005.

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

Small businesses near places like Picket Piece frequently occupy converted farm buildings. Those conversions put new frames and partitions against old brick, stone or timber, so each joint needs a product chosen for both surfaces.

We stand behind the joints we seal: 12 months, guaranteed. That covers our preparation and application, and we come back if anything isn’t right.

Place
Picket Piece (SP11)
Wider area
Hampshire
Guarantee
12 months on our workmanship
Quote
Quoted before any work starts
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Site staff or a sealant specialist?

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.

On site: what to expect

We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. Once we are cleared to begin, we take the joints in the sequence agreed with you, and each area is checked before we leave it. Several jobs near Picket Piece can be grouped on one trip. Tell us your site hours and we’ll plan around them.

  1. First, details reach us through the quote form or a site visit.
  2. We diagnose the cause of failure and price a fixed scope.
  3. Where parts of the building must stay open, the work is phased.
  4. Every failed bead is removed rather than covered.
  5. A suitable product for each joint goes in at the right depth and is tooled.
  6. A final walk-round, then the 12-month guarantee applies.

Getting the site ready

  • Flag any permit to work we will need
  • Have the specification and drawings to hand
  • Tell us which areas need to stay in use

Get a fixed quote

Pricing a project or setting a maintenance budget? We will quote against your scope and drawings that you can work with. For a chat about it beforehand, phone 01277 525 020 or email drawings and photos.

Get a quick quote

Related advice

Working on commercial sites near Picket Piece

The 3 miles around Picket Piece take in at least three named trading estates, business parks or retail parks. Each new occupier on a park like these tends to refit, from reception to staff kitchen, often in a colour the occupier specifies. Picket Piece lies roughly 61 miles out from central London. The South East around the capital has large numbers of business parks, offices and retail centres, especially around the motorway corridors. Occupiers with several premises in the region tend to prefer one contractor and one point of contact.

If you run an office at a site such as Walworth Business Park, 0.8 miles south-west of Picket Piece, the sealant at reception desks, tea points and frames ages with each fit-out. Offices and shops close to stations such as Andover station (2.4 miles west of Picket Piece) tend to be busy all day, so sealant work is planned around opening hours.

Picket Piece is about 2 miles east of Andover, in Hampshire. Any commercial site in Picket Piece is covered, for single jobs and planned programmes alike. 723 places across Hampshire fall within our area, including Picket Piece. We also cover Southampton, around 21 miles from Picket Piece.

We take on sealant joints across the SP11 postcode area, for business premises of every kind. Among the streets we cover are Locksbridge Road, Wyke Court and Galbraith Road, and sites on any of them can send details for a fixed quote. Close to Picket Piece, our area also takes in Finkley Down (1 mile west), Andover Down (1 mile south), Finkley (1 mile north-west), Picket Twenty (1 mile south-west) and East Anton (1 mile west). Nearby towns on our patch include Basingstoke (15 miles east), Winchester (12 miles south-east), Hyde (12 miles south-east), Tidworth (10 miles west), Weeke (11 miles south-east) and Kempshott (13 miles east).

Local landmarks in Picket Piece

Recent enquiries here include premises near Winton Community Academy and Winton Community Academy. The closest station to Picket Piece is Andover station, roughly 2.4 miles west. Well-known places in the area include Andover War Memorial Hospital (2.4 miles west) and Finkley Down Farm Museum (0.6 miles west). Not far away are Anton Lakes and Mill Lake.

Map of Picket Piece © OpenStreetMap contributors

When it isn’t the sealant

A proper diagnosis includes knowing what sealant can’t do. We’ll tell you if the real problem is one of these:

  • Water from a services leak rather than a joint
  • Structural cracks or movement the joints weren’t designed for
  • Roof leaks that only look like a joint problem

Not sure which it is? You can ring 01277 525 020 or email the details over and we will tell you honestly.

Surfaces we seal

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

Surface by surface

Movement joints in walls and floors

Floor joints that take trolleys or forklifts need a tougher filler or sealant. The choice comes down to how much the joint moves and what runs over it, and tell you if the edges need repairing first.

Facade and cladding joints

Panel joints on cladding and rendered facades open and close with the temperature. The product has to suit the movement, and the depth has to be controlled with backing. We confirm the access in place before we quote.

Looking after the joints

Cleaning and maintenance staff play a part too. Pass these on to them:

  • Check sealant as part of routine building inspections
  • Brief cleaning contractors to avoid scourers and blades on sealant
  • Keep a record of which joints were resealed and when
  • Make sure ventilation in wet areas is switched on and working

New joints need their full cure time before they take water, cleaning or traffic. That time depends on the product, the temperature and the joint depth. Leaving the area closed until then keeps the bead neat.

Tenants and staff spot black or split sealant quickly. Replacing it on a planned cycle keeps complaints down.

FAQs: Picket Piece

Is Picket Piece off your patch?

Not at all. Picket Piece is within our area. We cover Greater London and the counties of the South East. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

Do you cover business parks and estates near Picket Piece, such as Walworth Business Park?

Yes. Estates, retail parks and business parks around Picket Piece, Walworth Business Park among them, are all within reach. Photos and a short description are enough for a first look.

Will the building have to shut 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.

Does weather matter for sealant work?

It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.

Do you check for asbestos before removing sealant?

It can, on some older buildings. That’s why we ask for the asbestos information first, and stop if a material is suspect until it’s tested.

Do you hold CHAS accreditation?

Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.

How is commercial sealant work priced?

Photos, drawings or a schedule of the joints are normally enough to start through our quote form. Where we need to see it, we’ll arrange a site visit, then send a fixed quote.

What we’re called out for in Picket Piece

A split down the middle of the bead tells a different story. Normally the movement was too much for the sealant chosen. Replacing it like for like rarely holds.

What tends to prompt an enquiry:

  • Black mould through washroom sealant that won’t clean off
  • Water staining near frames, panels or ceilings
  • Hardened, chalky sealant on south-facing or exposed elevations
  • Window and door perimeter joints that have cracked open

Occupiers with premises at both Walworth Business Park and Churchill Retail Park could have the sealant at each handled under one quote.

Questions to ask before you book

  • Their pre-qualification and accreditations
  • Will failed sealant be removed rather than covered?
  • Which product they’ll use, and why it suits the joint
  • How joint depth will be controlled

Our contractor checklist

Accreditations

Trusted. Accredited. Insured.