Bosham mastic sealing
Looking for mastic sealing in Bosham? It’s simple: send details, get a quote, we seal, guaranteed.
- Estate-wide sealant that is simply worn out
- Worn sealant at communal door frames
- Damp patches beside frames
Mastic sealing for Bosham sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
After the work
Regular inspection catches problems early. In particular:
- Log resealing dates block by block
- Plan resealing building by building rather than complaint by complaint
- Check the asbestos register before any old mastic is disturbed
- Mention RAMS, insurance or CSCS requirements up front
Ask residents or tenants to report draughts or leaks round windows early. Early reports catch failures before damage spreads.
Water getting in round frames can damage plaster, decoration and the frames themselves. Early resealing is far simpler than repairs inside.
Mastic sealing for commercial buildings in Bosham
Before work starts, most agents and landlords want the documents in order. For documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We’re a Constructionline member and CHAS accredited, and we carry public liability insurance. If you have repeated reactive repairs to the same buildings and damaged joints in communal entrances and corridors, we can put it right, on external wall and movement joints, balcony and threshold joints and shopfronts below residential blocks alike. Searching for sealant specialists in Bosham? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.
In and around smaller places like Bosham, landlords and agents often look after small groups of housing association properties, converted farm buildings and community buildings. Mastic around frames and on external joints wears out in time, whatever the building.
We stand behind the joints we seal: 12 months, guaranteed. That covers our preparation and application.
- Place
- Bosham (PO18)
- Region
- West Sussex
- Cover
- 12 months on every job
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Commercial clients in Bosham
Building owners and managing agents use us on sealant work across single buildings or whole portfolios. One quote can cover more than one site, so there’s one set of paperwork to deal with.
Hospitality, education, healthcare, office and retail clients book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.
Also in Bosham
Diagnose, treat, sign off
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed, then handed back before we move to the next. Smaller jobs around Bosham can be grouped with others nearby. You’ll have a fixed quote before work starts.
- A building-by-building inspection lists the failed joints.
- You get a fixed quote, per block or for the whole programme.
- We agree the programme and dates with you.
- Old mastic is removed and the joint faces prepared.
- New sealant goes in with backing rod and primer where needed.
- Each building is checked and signed off with the 12-month guarantee.
Preparing the site
- Point out parking and an unloading spot
- Flag any permit to work we’ll need
- Have the specification and drawings to hand
Getting a fixed quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.
Advice
What happens if it’s left?
Draughts round window perimeters cost occupiers comfort and the windows typically get the blame. Resealing the perimeters is often the simpler fix when the frames themselves are sound. Around Bosham, it’s better to renew all the failing joints at once, rather than one at a time. Photos of every joint help us quote for the whole job.
The price depends on the quantity of joints, how much old material needs removing and the access. Call for a quote when you’re ready.
Why us?
- Sealing commercial buildings since 2005
- Constructionline member for supplier checks
- Colours chosen to suit frames, cladding or finishes where possible
- Health and safety: CHAS accredited
Read our cost guide and how we’re accredited.
Your questions answered
Do you cover business parks and estates near Bosham, such as Southfield Industrial Park.?
Yes. Estates, retail parks and business parks around Bosham, Southfield Industrial Park. Among them, are all within reach. A few photographs and the unit address let us price the work.
Does a coastal location like Bosham affect which sealant is used?
It can. Wind-driven rain and, closer to the shore, salt air are harder on external joints. We check the specified product suits the exposure and pay close attention to preparation.
How soon can the area be used again?
The product and site conditions decide that. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.
Do you check for asbestos in old sealant?
Some mastics in pre-2000 buildings contain asbestos. We ask for the asbestos register or survey before work starts and suspect material is tested first.
How do you choose the sealant?
If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
Is Bosham in your area?
Yes. We cover Bosham, within our coverage of Greater London, South East England and Scotland. For a quote, phone 01277 525 020 or email drawings and photos.
What do you charge?
That depends on the job: quantities, access, the product and any phasing. Call for a fixed quote.
Mastic sealing in Bosham: the local picture
The sea is no more than about 2 miles from Bosham. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first, so it’s worth inspecting those sides more often. There are four care or nursing homes within about 2 miles of Bosham. Frame mastic on care buildings is best renewed elevation by elevation, with the manager deciding timings.
Blocks of flats and mixed-use buildings often cluster around stations such as Bosham station, 0.8 miles to the north-east of Bosham, and their window and balcony mastic tends to age at the same rate across a building. Student blocks close to universities like University of Chichester (to the east of Bosham) are easiest to work on between tenancies.
Bosham is about 3 miles west of Chichester, in West Sussex. Commercial clients in Bosham can call on us for mastic joints, as part of our coverage of West Sussex. We work across 373 places in West Sussex. There’s a separate page for Portsmouth, roughly 10 miles from Bosham.
We cover the PO18 postcode districts. For a building on High Street, Viking Way and Merryweather Road or nearby, we can quote for mastic joints. Close to Bosham, our area also takes in Broadbridge (1 mile north-east), Chidham (1 mile west), Bosham Hoe (1 mile south), Nutbourne (2 miles north-west) and Fishbourne (2 miles east). Bigger towns within reach include Bognor Regis (8 miles east), Chichester (3 miles east), Selsey (7 miles south-east), Littlehampton (14 miles east), Rustington (15 miles east) and Portfield (4 miles east).
What’s near Bosham
We work on buildings around The Berkeley Arms Public House and the streets around them. For rail, the closest station is Bosham station, roughly 0.8 miles north-east of the centre. Well-known places in the area include Chichester Cathedral Treasury (3.2 miles east) and St Richard's Hospital (3.8 miles east). The countryside around Bosham includes Nutborne Marshes and Stoke Down.
What the job involves on each surface
Planned maintenance
Resealing can be scheduled alongside other planned works on a timetable you set.
Window and door perimeters on blocks
Window and door perimeters are where most mastic failure shows. We remove the failed mastic, prepare the faces, add backing rod if the joint is deep and reseal.
What we are called out for in Bosham
Sunlight and weather break mastic down over time. It stiffens, stops stretching and cracks most of all on the sunniest and most exposed elevations.
What tends to prompt an enquiry:
- Water getting in round frames after rain
- Repeated reactive repairs to the same buildings
- Occupiers reporting cold air round windows
- Brittle perimeter mastic across a building
Landlords with units on estates such as Southfield Industrial Park. (to the north of Bosham) can bring frame, door and external mastic across several units into one programme.
Comparing quotes
- What site paperwork they can supply
- Do they follow the manufacturer’s priming guidance?
- What level of public liability insurance do they hold?
- Which product they’ll use, and why it suits the joint