Construction Mastic in Bunkers Hill
Mastic packages for new-build and refurbishment projects throughout Bunkers Hill and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Existing joints on a refurb that need cutting out and resealing
- Early adhesion failures on new external joints
- Inconsistent sealant finishes from plot to plot
Construction mastic across Bunkers Hill
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Construction mastic in Bunkers Hill
Mastic follows everyone else, which means it absorbs every delay upstream. The sequence is set with the site team and updated as plots or floors are handed over and we don’t seal before other trades have finished in an area. Sealing too early only means coming back once others have damaged it. We work on floor and skirting junctions, sanitary and kitchen joints and cladding and panel joints, and what we’re called in for most is old sealant on a refurbishment that needs stripping before new work and frame gaps too wide for sealant alone. A specialist sealant contractor works differently from a general builder: in Bunkers Hill, that means joint design, primers and backing rod as standard.
In the countryside around places like Bunkers Hill, conversion schemes put new frames into old stone, flint, brick or timber. 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. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.
- Location
- Bunkers Hill (OX5)
- Region
- Oxfordshire
- Guarantee
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Looking after the joints
Once the work is signed off, these steps help:
- Don’t schedule sealing before decorators and flooring are done
- Plan external elevations with the weather in mind
- Keep finished joints away from paint, plaster and scrapers
- Brief the final clean team to avoid blades near sealant
Once an area is sealed, protect it from following trades. New beads should be left to cure before cleaning or decorating nearby.
One unsealed frame can let water into finished internal areas. On a new building that means remedial work after decorating. Checking perimeters before internal finishes go on avoids it.
Mastic packages on Bunkers Hill sites
Bunkers Hill sits in one of the drier corners of the country, the South East. Even so, frost and condensation on steel and glass are common on winter mornings, so the external programme keeps a little slack. Bunkers Hill has plenty of hotels close by, all within 2 miles. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.
Older buildings in the area around Bunkers Hill, such as Blenheim Palace (2.3 miles south-west of Bunkers Hill), need care when sealed: the product has to suit soft or historic materials. Recladding or extending a unit at a site like Oxford Spires Business Park, 1.7 miles to the south of Bunkers Hill, brings panel joints and frame perimeters into the programme.
Bunkers Hill is about 7 miles south-west of Bicester, in Oxfordshire. We cover commercial sites throughout Bunkers Hill, for single jobs and planned programmes alike. 423 places across Oxfordshire fall within our area, including Bunkers Hill. Our Oxford page has more on work in that area, about 8 miles away.
We cover the OX5 postcode districts for mastic packages. If your site is on Field View Lane and Bunkers Hill or close by, send details and we will quote for mastic packages. Close to Bunkers Hill, our area also takes in Shipton-on-Cherwell (1 mile south-east), Thrupp (1 mile south), Woodstock (2 miles south-west), Tackley (2 miles north) and Begbroke (2 miles south). A short drive away, we cover Oxford (8 miles south-east), Banbury (14 miles north), Bicester (7 miles north-east), Abingdon-on-Thames (13 miles south), Witney (9 miles south-west) and Carterton (13 miles south-west).
Around Bunkers Hill
Recent enquiries here include premises near Rock Of Gibraltar Public House, among other places. For rail, the closest station is Tackley station, roughly 1.8 miles north-east. Nearby you will also find Soldiers of Oxfordshire Museum (2 miles west).
From enquiry to sign-off
Occupied buildings need a little choreography. The work area is signed and kept contained, with routes through the building left open and move on in phases so staff and visitors can carry on around us. For work around Bunkers Hill, we aim to finish in one visit, so photos and measurements up front really help. Then the right materials arrive with us.
- First we look at the scope on site or from drawings.
- A fixed quote sets out scope, products and phasing.
- Site paperwork is confirmed and our CSCS-carded applicators are inducted.
- Sealing follows the programme as areas are released.
- Problems we find, such as oversized gaps, are raised straight away.
- Final snagging is completed and the 12-month guarantee applies.
Before we start on site
- Share the asbestos register for older buildings
- Tell us what induction or permit system the site runs
- Make sure the joints can be reached
Quotes
A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or call the office on 01277 525 020 or send photos by email to discuss it first.
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Common questions from Bunkers Hill clients
Is Oxford Spires Business Park, near Bunkers Hill, within your area?
Yes, sites like Oxford Spires Business Park are within our area, along with the rest of Bunkers Hill. To start, just call 01277 525 020 or send details through our quote form with the unit, the joints involved and your access times.
Can you keep pace with our programme in Bunkers Hill?
Yes, we work to the programme and the sequence the site sets. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
What site paperwork can you supply?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.
What if there’s asbestos in the old mastic?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.
Can you seal external joints in wet or cold weather?
Outside, the joint has to be dry and the temperature within the product’s limits. Frosty or damp mornings can hold up external sealing so we typically switch to internal work when that happens.
How do we ask for a quote?
There are four steps: send details, get a quote, we seal, guaranteed. The first step only needs photos and a postcode.
Will you come and look before quoting?
Many jobs can be quoted from photographs, drawings or a joint schedule. If the job needs a look first, we will arrange a visit before quoting.
General trades versus 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. That’s why many clients bring in a specialist from the beginning.
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.
When to call us in Bunkers Hill
Swapping the specified sealant for a cheaper general-purpose product is a common cause of failure. A sealant that isn’t right for the substrate or the movement will fail ahead of time. We stick to the specified product, or put any alternative to you first.
What tends to prompt an enquiry:
- Perimeter gaps outside the sealant’s range
- Cracks opening in caulked internal joints
- External joints sealed in damp or cold conditions that are now failing
- Missed perimeter joints on a new elevation
Projects at schools like Marlborough School work to term dates, so mastic is programmed tightly.
Before you book anyone
- Whether old or failed sealant will be cut out, not overlaid
- Who will actually carry out the work
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Can the work be phased to keep areas open?
What else we do in Bunkers Hill
Work for main contractors and building owners
Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.
Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.
What sealant work can’t fix
We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:
- Deciding which fire-stopping product a penetration needs
- Faulty frames rather than failed sealant
- Joints damaged after sign-off by following trades
If you are not sure, just call 01277 525 020 or email a schedule or drawings and we will give you a straight answer.
What we seal
- Cladding and panel joints
- Floor and skirting junctions
- Sanitary and kitchen joints
- Window and door perimeters
- Brick and block movement joints
- Internal decorators’ caulk