Construction and new-build mastic in Bonchurch, Isle of Wight
Mastic packages for new-build and refurbishment projects in Bonchurch. CHAS accredited and fully insured, with a 12-month guarantee.
- Oversized or tapered gaps around new frames
- Mastic snags holding up handover
- Internal caulk splitting as the building dries out
Construction mastic for businesses in Bonchurch
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 Bonchurch
Mastic tends to be one of the final packages before handover. We work as a mastic subcontractor to main contractors and developers on schemes in Bonchurch. We work on brick and block movement joints, floor and skirting junctions and window and door perimeters, and what we are called in for most is cracks opening in caulked internal joints and different trades sealing to different standards. Facilities teams, main contractors and managing agents in Bonchurch tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
Sites around smaller places like Bonchurch can be a fair drive from suppliers, so we come with everything the package needs, timed to the stage the job has reached. Drawings, photographs and the programme let us give a fixed quote.
Building owners and contractors get the same cover: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Where
- Bonchurch (PO38)
- Wider area
- Isle of Wight
- Cover
- 12 months on every job
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Why it’s worth doing now in Bonchurch
Some packages split mastic across the window fitter, kitchen fitter and plumber. In practice it often means different standards, gaps in responsibility and snags nobody owns. A single mastic package gives one point of responsibility. Converted and older buildings near places like Bonchurch tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.
The specified product makes a difference, as does the preparation each joint needs. Access, phasing and site requirements come into it too.
What you get with us
- Clear, fixed quotes
- Products installed to the manufacturer’s instructions
- Fully insured
- Colour agreed before work starts
Towns and villages near Bonchurch
Other services in Bonchurch
Building and refurbishing in Bonchurch
Bonchurch is within about 1 mile of the coast. Facades and window perimeters on coastal schemes take more wind-driven rain, and salt air nearer the shore, which puts weight on correct joint sizing, priming and a sealant suited to the exposure. Bonchurch has a good number of hotels close by, all within 2 miles. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades.
Hotel extensions and refits, at places such as Leconfield Hotel (under half a mile north-west of Bonchurch), usually run between busy periods, so the sealing is squeezed into short windows. Further education sites such as St Catherine's College, 0.7 miles to the west of Bonchurch, are extended and refurbished from time to time, with mastic often programmed into the summer break. Units on estates such as Ventnor Industrial Estate, 1.2 miles west of Bonchurch, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal.
Bonchurch is about 2 miles south of Shanklin, in the Isle of Wight. Any commercial site in Bonchurch is covered, for single jobs and planned programmes alike. 125 places across the Isle of Wight fall within our area, including Bonchurch. Our Portsmouth page has more on work in that area, about 15 miles away.
Postcode districts covered here: PO38. We cover commercial and managed buildings on Shore Road, Leeson Road and Bonchurch Village Road and the roads nearby. If your building is just outside Bonchurch, we cover Luccombe Village (1 mile north), Ventnor (1 mile west), Steephill (2 miles west), Wroxall (2 miles north-west) and Shanklin (2 miles north). Bigger towns within reach include Newport (9 miles north-west), Ryde (9 miles north), Cowes (12 miles north-west), Sandown (4 miles north), East Cowes (12 miles north-west) and Oakfield (8 miles north). For island and remote sites, we plan travel and materials carefully, so the full address helps from the start.
Landmarks near Bonchurch
We work on buildings around Bonchurch Inn and the streets around them. The nearest railway station is Shanklin station, about 2.4 miles north. Nearby you’ll also find Sandown Castle (4.3 miles north) and Arthur Webster Memorial Hospital for Children (2.5 miles north). For a walk, there’s Alverstone Mead and St Boniface Down.
Building owners, agents and FMs in Bonchurch
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.
Surface by surface
Bathrooms, en suites and washrooms
In bathrooms and washrooms, an anti-mould sanitary silicone goes around every fitting. Each joint is prepared, sealed and finished with a neat tooled line and baths are loaded where appropriate before sealing.
External facade and movement joints
External movement joints often need primer, depending on the substrate. We prime where the manufacturer specifies and work only when conditions suit.
Diagnose, treat, sign off
At the end of each section, the masking comes off, the area is cleaned and every joint is checked, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. Jobs in and around smaller places like Bonchurch are usually planned as a single visit, so we ask for photos and rough sizes first. That way the right products come on the day.
- We walk the site or review drawings to understand the package.
- A fixed quote sets out scope, products and phasing.
- Paperwork is agreed and applicators are inducted on site.
- Sealing follows the programme as areas are released.
- Any frame gaps or issues outside our scope are flagged to the site team.
- Final snagging is completed and the 12-month guarantee applies.
Preparing the site
- Let us know about inductions and permits
- Let building users know which areas are affected
- Move anything stored against the joints
Ask for a quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price the work to it. Smaller jobs need nothing more than photographs and a few notes.
Read more
Common questions from Bonchurch clients
Will you take on work at estates like Ventnor Industrial Estate, close to Bonchurch?
Yes, sites like Ventnor Industrial Estate are within our area, along with the rest of Bonchurch. A few photographs and the unit address let us price the work.
Will you plan work around the academic year at somewhere like St Catherine's College?
Yes. We plan campus work around teaching, exams and residence turnarounds. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.
Do you install fire-rated sealant as part of a package?
Where it’s specified, yes to the tested detail. We’ll flag if the detail needs a different product.
Can the sealant be colour-matched?
That depends on the product. Some ranges are wide, others limited, so the available colours are confirmed with the quote.
Do you work to architects’ specifications?
Yes. Include it with the drawings when you ask for a quote, and we’ll price the work to it, flagging anything that needs clarifying.
How do you deal with asbestos in old sealant?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. We check the asbestos register before cutting out old sealant in an older building, and work stops until any suspect material has been tested. Removing asbestos is a job for asbestos specialists, not us.
Are you fully insured?
Yes. Our insurance certificate can be sent alongside the quote.
General trades versus a specialist
Certain joints really need a specialist: for example 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.
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
What we can’t put right
Honesty saves time and money. New sealant won’t cure:
- Approving fire stopping as compliant
- Designing joint widths or choosing the specification (that sits with the designer)
- Frame gaps too wide for sealant, which the installer needs to correct
If you’re not sure, just call 01277 525 020 or send photos by email and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Cladding and panel joints
- Brick and block movement joints
- Sanitary and kitchen joints
- Internal decorators’ caulk
- Floor and skirting junctions
- Window and door perimeters