Construction and new-build mastic in North Boarhunt, Hampshire
Need construction mastic in North Boarhunt? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Frame perimeters left unsealed or poorly sealed
- Mastic snags holding up handover
- Bath and shower joints scraped during the final clean
Construction mastic across North Boarhunt
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How we handle construction mastic in North Boarhunt
Buyers, tenants and clients notice sealant lines long before they notice the structure. A smeared bead round a window or a gap behind a worktop ends up on the snag list, and every return visit costs time. Our aim is joints that pass at the first inspection, whatever the size of the scheme. The enquiries we see most involve a mastic package split between trades with no clear owner and bath and shower joints scraped during the final clean, across brick and block movement joints, floor and skirting junctions and cladding and panel joints. Looking for mastic applicators who cover North Boarhunt? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
Around smaller places like North Boarhunt, building work usually means conversions of farm buildings, a few new houses or an extension to a hall or school. Each still needs a proper mastic package: window perimeters, facade joints and internal sealant to the specification.
Every job we finish is backed by a 12-month workmanship guarantee, in North Boarhunt as everywhere else we work. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Place
- North Boarhunt (PO17)
- Wider area
- Hampshire
- Cover
- 12 months on every job
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
On site: what to expect
When we get to site, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before anything is cut or cleaned, and the work usually takes anything from a day of snagging to several weeks of plot-by-plot sealing on a phased scheme. Smaller jobs around North Boarhunt can be grouped with others nearby, which keeps travel down. A fixed quote is given before anything starts.
- Drawings, the sealant specification and your programme come to us for pricing.
- We return a fixed quote that ties the mastic package to your programme.
- Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
- We seal each plot or floor as it’s released to us.
- Each joint is prepared, backed to depth and sealed in the product the specification names.
- Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.
Before we start on site
- Share the asbestos register for older buildings
- Explain the parking and delivery arrangements
- Flag any permit to work we’ll need
Getting a fixed quote
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.
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Common questions from North Boarhunt clients
Can you work on a hospital site such as Knowle Hospital?
Yes, provided the work is planned with the site’s estates team. Each area is agreed with the ward or department and the estates team in advance.
Can you work at a site such as Spurlings Industrial Estate, by North Boarhunt?
Yes. Estates, retail parks and business parks around North Boarhunt, Spurlings Industrial Estate among them, are all within reach. A few photographs and the unit address let us price the work.
What does a mastic package normally include?
External and internal frame perimeters, caulking where it’s specified, sanitary silicone, kitchen joints and snagging before handover. We price to the specification and drawings.
How long before the joints can be used?
Curing time varies by product, and we confirm it on the day.
What guarantee comes with a mastic package?
Our workmanship carries a 12-month guarantee from sign-off. Damage by others after we’ve finished isn’t covered.
Are you fully insured?
Yes. We are fully insured, including public liability cover.
What if there’s asbestos in the old mastic?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.
Owners, agents and contractors
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.
CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. We’re fully insured, and our insurance certificate can go with the quote.
What happens if it’s left?
Sealing over damaged or contaminated new joints might save a day, but it rarely lasts. New sealant laid on old or dirty sealant has nothing to bond to, and the defect comes back after handover. Damaged joints are removed and resealed from clean faces. Converted and older buildings near places like North Boarhunt tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.
A quote for mastic packages depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.
Why clients in North Boarhunt choose us
- Constructionline member for supplier checks
- RAL and finish matching where the product range allows
- Sealing commercial buildings since 2005
- Workmanship guaranteed for 12 months
Towns and villages near North Boarhunt
Also in North Boarhunt
Contractors’ notes for North Boarhunt
At about 62 miles from central London, North Boarhunt is within reach of the capital. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, so mastic packages have to keep pace with busy programmes. North Boarhunt is in the South East, one of the UK’s drier regions. Even so, frost and condensation on steel and glass are common on winter mornings, which is why external dates are agreed with the site manager.
When a school such as Newtown Soberton Infant School is extended or refurbished, the mastic package is often squeezed into the holidays. For a contractor working at a hospital such as Knowle Hospital (2.8 miles west of North Boarhunt), perimeter and facade sealing is planned around patients and deliveries. Recladding or extending a unit at a site like Spurlings Industrial Estate, 2.4 miles south of North Boarhunt, brings panel joints and frame perimeters into the programme.
North Boarhunt is about 4 miles north-east of Fareham, in Hampshire. Anywhere in PO17, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Our Hampshire coverage takes in 723 places, from busy centres to rural villages. Portsmouth is covered too, around 7 miles from North Boarhunt.
Commercial sites across PO17 are covered for mastic packages. We cover commercial and managed buildings on Trampers Lane and Bere Farm Lane. Close to North Boarhunt, our area also takes in Hundred Acres (1 mile north-west), Wickham Common (1 mile west), Boarhunt (2 miles south), Crockerhill (2 miles south-west) and Southwick (2 miles south-east). A short drive away, we cover Winchester (14 miles north-west), Gosport (6 miles south), Havant (7 miles east), Eastleigh (10 miles north-west), Fareham (4 miles south-west) and Horndean (6 miles east).
Local landmarks in North Boarhunt
The closest station to North Boarhunt is Portchester station, roughly 3.3 miles south. Well-known places in the area include Fareham Shopping Centre (3.2 miles south-west) and Portchester Castle (4.2 miles south). Green spaces nearby include Portsdown Hill and St Clair's Meadow.
Honest limits
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Oversized gaps that need packing or adjustment by others
- Rework caused by others damaging completed areas
- Joint design decisions that belong to the architect or engineer
Not sure which it is? You can call the office on 01277 525 020 or email drawings and photos and we’ll tell you honestly.
What we seal
- Window and door perimeters
- Brick and block movement joints
- Sanitary and kitchen joints
- Internal decorators’ caulk
- Cladding and panel joints
- Floor and skirting junctions
Looking after the joints
Every sealant joint needs some looking after, and how long they last depends on how they’re treated. Our advice:
- Brief following trades on areas that have been sealed
- Keep scrapers and abrasive pads off new beads
- Allow flexibility for external sealing in damp or cold weather
- Get the mastic subcontractor involved early in the programme
Expect some settlement in the first months. Flexible sealants in the right joints handle normal movement, but caulk in a joint that moves more than expected may crack. If that happens, let us know.
In wet areas, a weak sanitary joint shows up quickly once the building is occupied. Leaks behind showers and basins damage finishes and floors, and the repair falls into the defects period. Getting the product and preparation right first time avoids that.
Doing it in-house
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Some joints are best left to specialists: 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.