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

Steeple Aston facade sealing

Sealant work in Steeple Aston for main contractors, managing agents and facilities managers: facade joint and window perimeter sealing on commercial buildings, with a fixed quote first.

  • Failed seals around shopfront and entrance frames
  • Staining on stone next to old sealant
  • Water coming in around window frames
1
Send details
Send the specification, photos or a marked-up plan.
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
Constructionline member
£5m PL insurance

Facade sealing in Steeple Aston

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

Facade sealing in Steeple Aston

Managing agents and owners in Steeple Aston ask us to, we reseal perimeters across whole elevations or a handful of problem windows. Either way, the method is the same: cut out, clean, back, prime where needed and seal. Each job carries our 12-month guarantee. If you are dealing with draughts around frames and panels and hard, chalky sealant that no longer flexes, we can put it right, whatever the surface. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Steeple Aston is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Construction in and around smaller places such as Steeple Aston is often barn conversions, small groups of houses or extensions to halls and schools. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.

Building owners and contractors get the same cover: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Steeple Aston (OX25)
Region
Oxfordshire
Guarantee
A 12-month guarantee
Quote
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026

Work for main contractors and building owners

Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.

Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, and each stage is agreed with your contact.

Questions we’re asked in Steeple Aston

Can you keep pace with our programme in Steeple Aston?

Yes. Send the programme and drawings, and we will plan the mastic to suit the stages. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.

Is Hatch End Old Industrial Estate, near Steeple Aston, within your area?

Yes. Estates, retail parks and business parks around Steeple Aston, Hatch End Old Industrial Estate among them, are all within reach. To start, just give us a call on 01277 525 020 or email us with the unit, the joints involved and your access times.

Which sealant will you use?

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.

Can you just add new sealant on top?

No. Fresh silicone won’t grip cured silicone, so the existing bead is removed entirely and the joint cleaned back to sound material. That is what makes the new joint last.

Should we check old sealant for asbestos?

It’s worth checking in any building from before 2000. The duty to manage asbestos sits with the dutyholder. If asbestos is suspected, work stops until it is tested.

Which sealant do you use on facades?

Low-modulus, neutral-cure silicone suits many facade and perimeter joints. Hybrid or MS polymer, polyurethane and polysulphide sealants suit others.

Will you check whether the sealant is causing the leak?

Yes. We check the sealant joints and report what we find before quoting. Where the cause seems to be elsewhere, we’d rather tell you than reseal pointlessly.

Site staff or a sealant specialist?

Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

A short, simple internal joint is often within reach of a maintenance team. 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.

Facades, frames and programmes in Steeple Aston

Steeple Aston is in the South East, one of the UK’s drier regions. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so we time external mastic for dry faces and agree it with the site team. Steeple Aston lies roughly 60 miles out 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.

New units and refits on sites such as Hatch End Old Industrial Estate (under half a mile north of Steeple Aston) need their panel and perimeter joints sealed to the specification. For a contractor at a hotel such as Holt Hotel (Oxfordshire), 0.7 miles south-west of Steeple Aston, the mastic often has to be finished before a reopening date.

Steeple Aston is about 7 miles west of Bicester, in Oxfordshire. Any commercial site in Steeple Aston is covered. Across Oxfordshire, 423 places are covered, including Steeple Aston. We also cover Oxford, some 13 miles away.

Postcode districts covered here: OX25. For a building on Jubilee Close, Paines Hill and North Side or nearby, send details and we’ll quote for facade joints. We also cover Middle Aston (1 mile north), Steeple Barton (2 miles west), Duns Tew (2 miles north-west), North Aston (2 miles north) and Dane Hill (2 miles north) for facade joints. Bigger towns within reach include Oxford (13 miles south), Banbury (9 miles north), Bicester (7 miles east), Witney (12 miles south-west), Kidlington (8 miles south) and Headington Quarry (13 miles south).

What’s near Steeple Aston

Around Steeple Aston, our work takes us to commercial buildings near White Lion pub. For rail, the closest station is Heyford station, about 0.9 miles south-east of the centre. A little further out are Deddington Castle (3.6 miles north).

Map of Steeple Aston © OpenStreetMap contributors

When it isn’t the sealant

Part of a good diagnosis is knowing where sealant stops. You’ll hear from us if the cause turns out to be any of the following:

  • Movement beyond what any sealant can handle
  • Work on the window or framing system itself
  • Damaged frames that need replacing

If in doubt, give us a call on 01277 525 020 or email us and we will say what we think.

Where we work in Steeple Aston

  • Perimeter joints where frames meet the structure
  • Stone and brick facade joints
  • Coping and flashing joints
  • Window and door perimeters
  • Shopfront frames
  • Cladding panel joints

On site: what to expect

We follow your site rules from the start: signing in, inductions and any permit to work. With the paperwork done, the joints are worked through in the order agreed with your site contact. For work around Steeple Aston, we aim to finish in one visit, so we ask for photos and rough sizes first. That way the right products come on the day.

  1. First we review photos, drawings or what we saw on a visit, and agree how each joint will be reached.
  2. The old bead is cut away completely, not overlaid.
  3. Both faces are cleaned and, where the product needs it, primed.
  4. Backing rod, or bond-breaker tape in shallow joints, limits the depth.
  5. A facade-grade sealant rated for the movement goes in, tooled to a concave profile.
  6. We walk the finished joints with you before handing over.

What we need from you

  • For older buildings, check the asbestos register before work
  • Warn occupants and staff about the work
  • Explain the parking and delivery arrangements

Getting a fixed quote

To get a fixed quote, ring 01277 525 020 or send photos by email, telling us the site location and the nature of the job. You can also send details through our quote form.

Get a quick quote

Advice

What affects the price in Steeple Aston

Before we quote, we look at:

  • Backing rod, priming and other preparation
  • Specialist products, such as fire-rated or hygienic sealants
  • Whether old sealant has to be cut out first
  • Site requirements such as inductions and permits

Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we will put a fixed figure on it.

Sending details for a quote

However big the job, these details speed things up:

  • Asbestos survey details if the building is older
  • The product your specification calls for
  • Clear photographs of the problem areas
  • Where the site is, with the postcode

Send us photographs, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.

When to call us in Steeple Aston

Overlaying old sealant is a common shortcut that fails quickly. Cured silicone won’t accept a new silicone bead, and the patch soon lifts.

Any of the following is a good reason to get the joints checked over:

  • Patch repairs that keep failing
  • Unsightly perimeter sealant on a visible elevation
  • Hard, chalky sealant that no longer flexes
  • Cold air coming in at window perimeters

When a school such as Dr Radcliffe's Church of England Primary School is extended or refurbished, the mastic package is often squeezed into the holidays.

Comparing quotes

  • How long is the guarantee, and what does it include?
  • What level of public liability insurance do they hold?
  • Their approach to joint depth and backing
  • Whether primer will be used where the manufacturer specifies it

Our contractor checklist

Accreditations

Trusted. Accredited. Insured.