The Mastic Doctor team standing beside their branded vans outside an office building
Oxfordshire · England

Facade and window perimeter sealing in Bunkers Hill, Oxfordshire

Need facade sealing in Bunkers Hill? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • Hard, chalky sealant that no longer flexes
  • Perimeter sealant that has split or peeled away
  • Damp patches beside frames after rain
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS accredited
£5m public liability

Facade sealing near Bunkers Hill

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

How we handle facade sealing in Bunkers Hill

We don’t install glazing systems or replace glass. We handle the sealant joints that surround those elements: the frame-to-structure perimeter, panel-to-panel joints and window and door surrounds. Most enquiries involve unsightly perimeter sealant on a visible elevation and weathered facade joints that have lost their grip, across coping and flashing joints, stone and brick facade joints and window and door perimeters. Looking for mastic applicators who cover Bunkers Hill? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.

Around smaller places like Bunkers Hill, building work usually means conversions of farm buildings, a few new houses or an extension to a hall or school. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.

We stand behind the joints we seal: 12 months, guaranteed. That covers our preparation and application, and we come back if anything isn’t right.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Bunkers Hill (OX5)
Region
Oxfordshire
Cover
A 12-month guarantee
Quote
Quoted before any work starts
Telephone
01277 525 020
Page updated
3 November 2026

Looking after the joints

Your facilities or cleaning team can help the joints last. Share these points with them:

  • Record the product and colour used on each elevation
  • Add perimeter sealant to planned maintenance checks
  • Avoid patch repairs on failed facade joints
  • Investigate damp beside windows promptly

Following storms, look inside for damp or staining near frames. Catching a new leak early keeps the repair small.

Planned resealing is cheaper than reacting to leaks. Regular checks let you renew joints before water gets in, rather than waiting for a ceiling stain.

Building and refurbishing in Bunkers Hill

Bunkers Hill is about 58 miles from central London. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, and each scheme needs its mastic sealed to programme. Bunkers Hill has plenty of hotels close by, all within 2 miles. When hotels extend or refit, the work is normally squeezed between peak periods, mastic included.

Units on estates such as Oxford Spires Business Park, 1.7 miles to the south of Bunkers Hill, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal. Projects at schools like Marlborough School work to term dates, so mastic is programmed tightly.

Bunkers Hill is about 7 miles south-west of Bicester, in Oxfordshire. Looking for facade sealing in Bunkers Hill? We can help. 423 places across Oxfordshire fall within our area, Bunkers Hill among them. Our Oxford page has more on work in that area (8 miles or so).

We take on facade joints across the OX5 postcode area. If your site is on Field View Lane and Bunkers Hill or close by, send details and we’ll quote for facade joints. If your building is just outside Bunkers Hill, we cover 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).

Landmarks near Bunkers Hill

We work on buildings around Rock Of Gibraltar Public House. The nearest railway station is Tackley station, roughly 1.8 miles north-east. Well-known places in the area include Soldiers of Oxfordshire Museum (2 miles west).

Map of Bunkers Hill © OpenStreetMap contributors

Common problems we fix in Bunkers Hill

When sealant lets go of a frame or panel, the cause is often the preparation. Contamination, moisture or skipping the primer the maker specifies leave a weak bond, and movement soon pulls it away.

Things that usually lead to an enquiry:

  • Old perimeter mastic that has dried out
  • Previous reseals run over old sealant
  • Facade joints cracked through the middle
  • Air leaks through failed facade joints

Older buildings in the area around Bunkers Hill, such as Blenheim Palace, 2.3 miles to the south-west of Bunkers Hill, need care when sealed: the product has to suit soft or historic materials.

Questions to ask before you book

  • Health and safety accreditation such as CHAS
  • Will CSCS-carded applicators be on site?
  • What the guarantee covers, and for how long
  • Will failed sealant be removed rather than covered?

Our contractor checklist

Your questions answered

Can you work at a site such as Oxford Spires Business Park, by Bunkers Hill?

Yes. We cover Bunkers Hill and the area around it, including industrial estates, business parks and retail parks such as Oxford Spires Business Park. A few photographs and the unit address let us price the work.

Is Bunkers Hill too far out for you?

Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Good photos up front let us bring everything on the first visit.

How long does a typical visit take?

That varies with the scale of the job, but the work typically takes a day or two for a few elevations, and longer where access has to be moved around the building. For bigger or phased jobs, we’ll set out a timescale with the quote.

Can weather delay the job?

For external joints, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.

What type of sealant goes on window perimeters?

The product follows the joint’s movement, the surfaces and the specification. Specifications often refer to BS EN 15651-1 for facade sealants or BS EN 15651-2 for glazing.

Can you just add new sealant on top?

No. Overlaying is a shortcut that peels away quickly. We remove the failed sealant, clean the faces, set the depth and reseal.

Do you replace windows or glass?

No. Glazing, windows and glass replacement aren’t part of our work. We seal the joints around them, such as perimeter joints where frames meet the structure.

How a job runs

Before we leave any area, we remove the tape, clean down and inspect every joint. Where the sealant needs time to cure before use, we tell you and sign the area. Jobs in and around smaller places like Bunkers Hill are typically planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.

  1. Photos, drawings or a visit tell us about the joints and the access.
  2. Product choice follows the joint’s movement and substrate.
  3. The existing bead comes out in full.
  4. Primer is applied where the maker specifies it.
  5. Backing rod is fitted and the new sealant gunned in and tooled.
  6. The finished joints are checked with you.

What we need from you

  • Send your site hours and access windows
  • Move anything stored against the joints
  • Share the asbestos register for older buildings

Request a quote

Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. To get it moving, call 01277 525 020 or email the details over.

Ask for a quote

Related advice

How the job changes by surface

Precast concrete panels

Concrete edges can be dusty or weak. Faces are cleaned to sound concrete, and damaged edges are reported before sealing.

Cladding panel joints

Where panels are sealed rather than open-jointed, the bead is part of the weather line. Failed runs are cut out and rebuilt end to end with backing and a facade-grade sealant.

General trades versus a specialist

Site maintenance staff can often handle a short internal joint. 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.

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

Commercial clients in Bunkers Hill

We work for building owners and managing agents on sealant work across single buildings or whole portfolios. Several sites can go on one quote, which keeps the paperwork simple.

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Sites in Bunkers Hill can sit alongside others in a wider programme.

Accreditations

Trusted. Accredited. Insured.