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

Banbury mastic sealing

Mastic sealing for Banbury, from a contractor working since 2005. Fully insured, with a 12-month guarantee.

  • Window mastic that has split and shrunk
  • Leaks at window and door perimeters
  • Movement joints with sealant missing
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
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Mastic sealing for Banbury sites

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

What we can’t put right

Honesty saves time and money. New sealant won’t cure:

  • Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
  • Masonry that has broken away beside the joint
  • Water coming in from the roof or rainwater goods

If you are not sure, just phone 01277 525 020 or send photos by email and we’ll give you a straight answer.

Joints and surfaces we work on

  • Shopfronts below residential blocks
  • Communal entrances and stairwells
  • Balcony and threshold joints
  • External wall and movement joints
  • Window and door perimeters on blocks
  • Communal kitchens and washrooms

How we handle mastic sealing in Banbury

There isn’t one mastic for every joint on a building. Window perimeters and external joints often take a low-modulus neutral-cure silicone, and MS polymer sealants stick well to many substrates and often take paint, and colours are confirmed for whichever product is used. If you are dealing with old repairs sealed over failed mastic and open joints in brickwork or panels, we can put it right, on balcony and threshold joints, shopfronts below residential blocks and window and door perimeters on blocks alike. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Banbury is the same: the right product in a properly prepared joint.

In Banbury, as in most towns, a block may have frames from several eras, which leaves perimeter mastic of very different ages. Looking at the whole building first shows what needs doing now and what can wait.

Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

Where
Banbury (OX16, OX17)
Region
Oxfordshire
Cover
12 months on every job
Price
Quoted before any work starts
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Should maintenance staff do it?

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong typically costs more in the end than doing them right.

Surface by surface

External movement joints

The joint width has to suit the movement and the sealant’s capability with the width-to-depth ratio set as the manufacturer advises.

Planned maintenance

We can work into your cyclical maintenance plan, building by building.

Banbury: questions and answers

Do you cover business parks and estates near Banbury, such as Swan Industrial Estate?

Yes. We cover Banbury and the area around it, including industrial estates, business parks and retail parks such as Swan Industrial Estate. To start, just ring 01277 525 020 or send details through our quote form with the unit, the joints involved and your access times.

Will you work in a care home in Banbury without moving residents out?

Yes. We agree rooms and times with the manager and work a few areas at a time. We follow the home’s own procedures throughout.

How do we ask for a quote?

You can use the quote form on this site; alternatively, call the office on 01277 525 020 or email us. Photos, drawings or a joint schedule help us quote quickly.

Do you work with property factors and landlords?

Yes, block and estate work is a core part of what we do. Buildings are scheduled in turn with dates agreed in advance.

Is asbestos a concern with old mastic?

Asbestos removal isn’t part of our work. Anything suspect is tested before we carry on, and the duty to manage asbestos sits with the dutyholder.

Who decides which product is used?

The specification comes first, if there is one. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.

Do you seal on top of existing sealant?

No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.

Work for main contractors and building owners

We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Banbury can sit alongside others in a wider programme.

Whether you’re 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.

How the quote is worked out

Sealant work doesn’t have a standard rate, since sites vary so much. What we look at:

  • How much there is to seal
  • Whether old sealant has to be cut out first
  • Access and working height
  • The product specified

The specified product makes a difference, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.

What to include in your enquiry

Whether it’s one area or a whole building, the same details help:

  • Clear photos of the problem areas
  • The postcode of the building
  • Anything awkward about access or site hours
  • Your programme or deadline

Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To ask for one, call 01277 525 020 or email a schedule or drawings.

From enquiry to sign-off

On arrival, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before any cutting starts, with the work itself normally taking a few days for most blocks, with larger programmes scheduled building by building. In a town such as Banbury, most jobs are single buildings. Your photos, drawings or a site visit come first, followed by a fixed quote.

  1. We inspect each building and record the joints that have failed.
  2. The quote is fixed and split as suits you.
  3. We agree the programme and dates with you.
  4. Failed sealant is removed and the faces prepared.
  5. Joints are resealed and tooled.
  6. Each building is checked and signed off with the 12-month guarantee.

Getting the site ready

  • Tell us your opening times and when work is allowed
  • Send asbestos survey details if the building is pre-2000
  • Explain the parking and delivery arrangements

Quotes

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, phone 01277 525 020 or email a schedule or drawings.

Get a price

Advice

Mastic sealing in Banbury: the local picture

Eight care or nursing homes sit less than 2 miles from Banbury. Care home owners need frame and external mastic kept sound without unsettling residents. Rainfall across the South East, Banbury included, is lower than in many parts of the UK. Even so, frame mastic only goes on in dry, workable conditions, and elevations facing the sun and the prevailing weather are usually where frame mastic ages first.

Blocks of flats and mixed-use buildings often cluster around stations such as Banbury station, 0.8 miles to the east of Banbury, and their window and balcony mastic tends to age at the same rate across a building. Historic properties like Broughton Castle (2.5 miles south-west of Banbury) show the age of some local stock, where frame mastic must suit soft brick or stone. Site managers at schools like St Mary's Church of England Primary School can fit frame mastic into the summer works.

Banbury is in Oxfordshire. Banbury sits inside our coverage and the rest of Oxfordshire, with the same fixed quotes and 12-month guarantee as everywhere else. We work across 423 places in Oxfordshire, from busy centres to rural villages. Oxford is covered too, some 22 miles away.

Postcode districts covered here: OX16 and OX17 for mastic joints. We cover commercial and managed buildings on High Street, Market Place and Grimsbury Square. With the A361 and A422 nearby, Banbury is easy to get to with materials and equipment. Just outside Banbury, we also work in Neithrop (1 mile west), Ruscote (1 mile west), Grimsbury (1 mile east), Drayton (1 mile north-west) and North Newington (2 miles west). Bigger towns within reach include Bicester (14 miles south-east), Bure Park (13 miles south-east), Chipping Norton (12 miles south-west), Woodstock (15 miles south), Bloxham (3 miles south) and Charlbury (14 miles south-west). Banbury is one of the busier places in Oxfordshire, and its commercial and public buildings are all within our area.

Landmarks near Banbury

Around Banbury, our work takes us to commercial buildings near People's Park, Banbury Academy and Duke of Wellington pub. Banbury’s nearest station is Banbury station, about 0.8 miles east of the centre. Nearby you’ll also find Castle Quay Shopping Centre (0.5 miles east) and Banbury Castle (0.5 miles east). The countryside around Banbury includes Crouch Hill and Farthinghoe Nature Reserve.

Map of Banbury © OpenStreetMap contributors
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