Construction and new-build mastic in Crofton, Hampshire
Sealant work in Crofton for main contractors, managing agents and facilities managers: mastic packages for new-build and refurbishment projects, quoted at a fixed price.
- Perimeter gaps outside the sealant’s range
- Old sealant on a refurbishment that needs stripping before new work
- New external sealant already peeling away
Construction mastic in Crofton
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Contractors’ notes for Crofton
Crofton sits close to the coast, within about 1 mile. Coastal exposure means perimeter and cladding joints work harder than on an inland job, and the sealant, primer and backing need choosing with that in mind. The area within 2 miles of Crofton holds a number of hotels. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.
Units on estates such as Speedfields Retail Park, 0.9 miles north-east of Crofton, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal. University estates such as University of Portsmouth - North Zone, 4.6 miles to the east of Crofton, tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal.
Crofton is about 1 mile east of Stubbington, in Hampshire. Looking for construction mastic in Crofton? We can help, as we do across Hampshire. We work across 723 places in Hampshire.
Business premises anywhere in PO14 and PO13 are within our area. We cover commercial and managed buildings on Mark's Road, Gosport Road and Newgate Lane and the roads nearby. Just outside Crofton, we also work in Peel Common (1 mile east), Rowner (1 mile east), Bridgemary (1 mile east), Lee-on-the-Solent (1 mile south) and Fareham (2 miles north). Bigger towns within reach include Havant (10 miles east), Eastleigh (12 miles north-west), Horndean (10 miles north-east), Totton (15 miles north-west), Chandler's Ford (14 miles north-west) and Hedge End (8 miles north-west).
What’s near Crofton
Around Crofton, our work takes us to commercial buildings near Baycroft School and Peel Common Infant School and Nursery Unit. Crofton’s nearest station is Fareham station, roughly 2.1 miles north. A little further out are Gosport War Memorial Hospital (3 miles south-east) and Carron Row Farm Museum (3 miles north-west). Green spaces nearby include Portsdown Hill and West of the River Alver.
Construction mastic in Crofton, done properly
External mastic depends on the weather in a way most internal trades don’t. Cold or damp mornings, frost and condensation on frames can all hold external sealing up so it helps to sequence elevations with some flexibility. Internal areas can normally carry on while the outside waits. We work on brick and block movement joints, sanitary and kitchen joints and cladding and panel joints, and the usual reasons a site gets in touch are oversized or tapered gaps around new frames and internal caulk splitting as the building dries out. Whoever orders the work in Crofton, the brief is usually the same: a clear scope, tidy work and joints that don’t fail again.
Conversions of older rural buildings near smaller places such as Crofton bring stone, flint, brick and timber up against new glazing. Those joints need a sealant that suits an uneven, sometimes porous surface, and often a colour chosen for the building.
What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Location
- Crofton (PO14, PO13)
- Region
- Hampshire
- Cover
- A 12-month guarantee
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026
FAQs: Crofton
Will you plan work around the academic year at somewhere like University of Portsmouth - North Zone?
Yes. Education sites normally want the work in vacations or in phases during term, and we plan to suit. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
Will you take on work at estates like Speedfields Retail Park, close to Crofton?
Yes, sites like Speedfields Retail Park are within our area, along with the rest of Crofton. A few photos and the unit address let us price the work.
Is the mastic package guaranteed?
It’s backed by our 12-month guarantee, covering how we sealed. Protecting sealed areas from following trades helps avoid damage.
Can you work to our specification?
The specification decides the product and flag anything that doesn’t look right for the joint. Specifications often reference BS EN 15651 or BS 6213.
Do you offer coloured sealant?
In many cases, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We confirm what’s available for the specified product when we quote.
What does a mastic package usually include?
External perimeters and movement joints, internal caulking where specified, sanitary and kitchen joints, plus snagging.
Do you install fire-rated sealant as part of a package?
Where it’s specified, yes to the tested detail. If the detail calls for collars, wraps or batts instead, we’ll tell you.
Our process
Inspect, seal, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. Jobs in and around smaller places like Crofton are usually planned as a single visit, so we ask for photographs and rough sizes first. That way the right products come on the day.
- Drawings, specification and programme come to us.
- Quantities are measured and a fixed price returned.
- We agree with the site team which areas come first.
- Plots or floors are sealed as they’re handed over.
- Every joint is cleaned, set to depth and sealed with the specified product.
- Snags are cleared and the package signed off with our 12-month guarantee.
Before we start on site
- Move anything stored against the joints
- Point out any areas we must not close
- Share the asbestos register for older buildings
Quotes
Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. Smaller jobs need nothing more than photographs and a few notes.
Read more
When to bring in a specialist
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.
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
What we’re called out for in Crofton
On construction sites, joints typically fail early because of when they were sealed, not what was used. If sealant goes in before the last trades are through, it gets knocked, painted over or contaminated, so they end up back on the snag list.
Most enquiries start with one or more of the following:
- Snag items on joints that need redoing before handover
- Existing joints on a refurb that need cutting out and resealing
- Early adhesion failures on new external joints
- Window and door perimeters that won’t pass inspection
For contractors at a college like Fareham College, 1.9 miles north of Crofton, perimeters and internal sealant are timed for the holidays.
Before you book anyone
- How long is the guarantee, and what does it include?
- How the existing material will be dealt with
- Do they follow the manufacturer’s priming guidance?
- Who will actually carry out the work
For managing agents and facilities managers
If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
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’ll confirm them with the quote.
Towns and villages near Crofton
Other services in Crofton
What sealant work can’t fix
Being straight saves everyone time. Fresh joints won’t solve:
- Defective windows, doors or glazing units (the supplier or installer’s job)
- Oversized gaps that need packing or adjustment by others
- Joints damaged after sign-off by following trades
If in doubt, speak to us on 01277 525 020 or send details through our quote form and we will say what we think before you book.
Surfaces we seal
- Brick and block movement joints
- Internal decorators’ caulk
- Window and door perimeters
- Floor and skirting junctions
- Sanitary and kitchen joints
- Cladding and panel joints
Aftercare for building managers
Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. We suggest:
- Ask installers to correct oversized gaps first
- Record the products used in the O&M file
- Keep finished joints away from paint, plaster and scrapers
- Bring the mastic contractor in after the last trades are through
Record which products went where in the handover file. Future maintenance is easier when the products are known, and tells you what to reseal with. Tell us what records you need and we’ll confirm with the quote.
Frames with gaps too wide for sealant need sorting before the mastic goes on. Filling a wide gap with sealant alone sets up a failure, so the installer needs to correct it first. We raise them during our first walk of the area.