
Construction and new-build mastic in Picket Piece, Hampshire
Mastic packages for new-build and refurbishment projects throughout Picket Piece and nearby, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Frame gaps too wide for sealant alone
- Cracks opening in caulked internal joints
- Bath and shower joints scraped during the final clean
Construction mastic across Picket Piece
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Construction mastic in Picket Piece
Refurbishment work needs a slightly different approach from new build. Old beads come out completely, as fresh silicone can’t grip old, and on older buildings we ask for the asbestos survey before disturbing anything. New and existing joints then get the same preparation. We work on cladding and panel joints, internal decorators’ caulk and brick and block movement joints, and what we are called in for most is missed perimeter joints on a new elevation and caulk cracking where joints are moving more than expected. Searching for sealant specialists in Picket Piece? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.
For a contractor on a smaller site near Picket Piece, one mastic visit at the right stage saves return trips. Let us know the key stages and we will time the work so nothing waits on us.
A 12-month guarantee applies to all our work. Should something we installed fail, phone 01277 525 020 or email us and we’ll come back to it.

- Where
- Picket Piece (SP11)
- Wider area
- Hampshire
- Guarantee
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Leave it or put it right?
Getting the mastic contractor involved early pays off. We can check joint widths, flag frames with gaps that won’t seal and confirm products against the specification, which avoids last-minute problems. Leave it late and they turn up on the snag list. Sealant hardens, cracks and loses grip with age, UV and movement. Replacing it before it fails keeps water out.
Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
Why choose Mastic Doctor in Picket Piece
- Colour options checked against the specified product
- Our applicators hold CSCS cards
- CHAS accredited
- Old sealant cut out, never sealed over
How a job runs
Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. On site, the work normally takes as long as the agreed sequence needs, which comes down to joint lengths, access and handover dates, and we clear our waste as we work. For a job in Picket Piece, the main thing is a clear picture of the work. A fixed quote follows.
- We start with the drawings, specification and programme.
- We take off quantities and return a fixed quote.
- The sequence is agreed with the site manager.
- Plots or floors are sealed as they’re handed over.
- Joints are prepared, backed and sealed to the specification.
- Snags are cleared and the package signed off with our 12-month guarantee.
Before we start on site
- For older buildings, check the asbestos register before work
- Have the specification and drawings to hand
- Clear stock, furniture or equipment away from the joints
Request a quote
Let us know the site, the scope and your timescale, and we will put a fixed quote together. To get it moving, call the office on 01277 525 020 or send photos by email.
Advice
Sites and facades in and around Picket Piece
Picket Piece is in the South East, one of the UK’s drier regions. Winter mornings still bring frost and condensation on frames and panels, so the external programme keeps a little slack. Central London is about 61 miles from Picket Piece. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, and each scheme needs its mastic sealed to programme.
Further education sites such as Andover College, 2 miles to the west of Picket Piece, are extended and refurbished from time to time, with mastic often programmed into the summer break. For contractors at a school such as Pilgrims' Cross CofE Aided Primary School, sealing has to be finished before term starts.
Picket Piece is about 2 miles east of Andover, in Hampshire. Our applicators travel to Picket Piece for work on mastic packages, handled exactly as we handle every other area. Picket Piece is one of 723 places in Hampshire on our list for mastic packages. Our Southampton page has more on work in that area (21 miles or so).
Postcode districts covered here: SP11 for mastic packages. Buildings on Locksbridge Road, Wyke Court and Galbraith Road are within our area. If your building is just outside Picket Piece, we cover 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). A short drive away, we cover 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
We work on buildings around Winton Community Academy and Winton Community Academy, among other places. Picket Piece’s nearest station is Andover station, about 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). The countryside around Picket Piece includes Anton Lakes and Mill Lake.
Common questions from Picket Piece clients
Can you work at a site such as Walworth Business Park, by Picket Piece?
Yes. We cover Picket Piece and the area around it, including industrial estates, business parks and retail parks such as Walworth Business Park. A few photos and the unit address let us price the work.
Can you work around term dates at a campus such as Andover College?
Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
What about RAMS and site documents?
Each site asks for different documents, so tell us what you need and we will confirm it when we quote.
How do you work with the site programme?
We follow the trades through the building. Areas are sealed as they’re released by the site team and we tell you if something stops an area being sealed.
How long does a typical visit take?
The duration is planned around your programme and the access we are given. You will have an expected duration with the quote.
What happens if old sealant might contain asbestos?
The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. If anything suspect turns up, we stop until it’s tested.
Do you take on multi-site work?
Yes. Several buildings can share a single quote, with one point of contact.
When to bring in a specialist
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
Looking after the joints
Cleaning and maintenance staff play a part too. Pass these on to them:
- Allow flexibility for external sealing in damp or cold weather
- Ask cleaners to use soft cloths around fresh sealant
- Put any product change through the designer first
- Note which sealant went where at handover
Brief the sparkle clean so they don’t scrape the new joints. Scrapers used on frames and worktops can nick or lift a new bead so keep them off the joints.
Sealing outside when the joint is damp or too cold leads to poor adhesion. Waiting for a dry joint and the right temperature is better than redoing work.
Work for main contractors and building owners
Building owners and managing agents use us on everything from one building to a spread of sites around Picket Piece. One quote can cover more than one site, which keeps the paperwork simple.
Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Picket Piece can form part of a wider programme across Hampshire.
Common problems we fix in Picket Piece
Shrinkage and settlement in the first months put new joints under strain. Plaster, screeds, timber and blockwork all shrink as they lose moisture, which opens up internal joints, particularly where caulk has been used in a joint that moves. Picking a flexible sealant where there’s movement keeps snags down.
Any of the following is a good reason to get the joints checked over:
- External joints sealed in damp or cold conditions that are now failing
- Perimeter gaps outside the sealant’s range
- Old sealant on a refurbishment that needs stripping before new work
- Cracks opening in caulked internal joints
Recladding or extending a unit at a site like Walworth Business Park, 0.8 miles south-west of Picket Piece, brings panel joints and frame perimeters into the programme.
What your quote should include
- What level of public liability insurance do they hold?
- How joint depth will be controlled
- Is the sealant right for the movement and the substrate?
- What the guarantee covers, and for how long