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

Facade and window perimeter sealing in Cholsey, Oxfordshire

Need facade sealing in Cholsey? It’s simple: send details, get a quote, we seal, guaranteed.

  • Weathered joints at frame-to-structure perimeters
  • Cladding panel joints that have opened up
  • Patch repairs that keep failing
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Facade sealing across Cholsey

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

Questions about Cholsey

Do you cover business parks and estates near Cholsey, such as Hithercroft Industrial Estate?

Yes. We cover Cholsey and the area around it, including industrial estates, business parks and retail parks such as Hithercroft Industrial Estate. To start, just speak to us on 01277 525 020 or send photos by email with the unit, the joints involved and your access times.

Is a hospital such as Wallingford Community Hospital somewhere you can work?

Yes, healthcare and care buildings are part of our work. We follow the site’s permits, sign-in and infection-control procedures in every area.

Do we need an asbestos check before resealing?

In older non-domestic buildings, old sealant can contain asbestos. Check the asbestos register or survey before it is disturbed, and if anything is suspected, we stop until it’s tested. Removal of asbestos isn’t something we do.

Is colour matching possible?

In many cases, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We confirm what’s available for the specified product when we quote.

Will you check whether the sealant is causing the leak?

Yes. We look at the perimeter sealant and tell you whether it has failed as part of pricing. Where the cause seems to be elsewhere, we’d rather tell you than reseal pointlessly.

How long does a typical visit take?

That varies with the scale of the job, but the work typically takes anything from a single day to several weeks, depending on joint lengths, access and the weather. Larger or phased jobs take longer, and we will give you a timescale with the quote.

Can you quote from photographs?

That depends on the size and complexity of the job. Straightforward work can often be priced from photos and measurements, while larger or less clear jobs get a site visit first.

Facade sealing for commercial buildings in Cholsey

We are often asked to look at water coming in around frames. Failed perimeter sealant is a frequent cause. If the evidence points away from the sealant, we say so before quoting. If you are dealing with unsightly perimeter sealant on a visible elevation and new sealant peeling off old mastic, we can put it right. One point of contact handles commercial sealant work in Cholsey from the first photos to the final walk-round, for single jobs and planned programmes alike.

Conversions around smaller places like Cholsey often join new frames to old masonry or timber, which leaves joints between old walls and new frames that need a sealant able to take the movement, in a colour the planners or architect are happy with.

We sign every job off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Cholsey (OX10)
Region
Oxfordshire
Guarantee
12 months on every job
Quotes
A fixed quote before we start
Telephone
01277 525 020
Last updated
3 November 2026

Common problems we fix in Cholsey

Adhesive failure, where the sealant peels away from one face, usually comes from poor preparation. Dust, old sealant residue, damp or a missing primer stop it bonding properly, and movement soon pulls it away.

Things that typically lead to an enquiry:

  • Failed seals around shopfront and entrance frames
  • Air leaks through failed facade joints
  • Water coming in around window frames
  • Patch repairs that keep failing

Work at a hotel such as The Springs Hotel, 1.4 miles east of Cholsey, tends to be programmed around bookings, mastic included.

What to look for in a quote

  • Their plan for phasing and protecting the area
  • Their public liability cover
  • Their approach to joint depth and backing
  • Whether primer will be used where the manufacturer specifies it

Our contractor checklist

What we can’t put right

Some faults sit outside our scope, and we point that out rather than sealing over them:

  • Work on the window or framing system itself
  • Render or concrete edges that have broken away
  • Joints too narrow for the movement they take, which need redesign

If you are not sure, just call 01277 525 020 or email us and we’ll give you a straight answer.

Joints and surfaces we work on

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

Should maintenance staff do it?

Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.

Why it’s worth doing now in Cholsey

Patch repairs over old sealant tend to come back. A full cut-out and reseal costs more on the day but lasts much longer, so you aren’t paying for the same joint twice. In a smaller place such as Cholsey, getting a contractor back for a second visit takes time, so we’d suggest renewing all the joints that are going, not just the worst.

We don’t publish prices, since every building and every scope is different. Call for a quote.

Why clients in Cholsey choose us

  • Colours confirmed for the specified product
  • Health and safety: CHAS accredited
  • Constructionline member
  • One contact handling all your sites

See our cost guide and our accreditations and insurance.

Work for main contractors and building owners

Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Cholsey can form part of a wider programme.

From enquiry to sign-off

We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. For a site in Cholsey, we plan so the whole job is done in one go where possible. Photos with rough sizes let us arrive with everything needed.

  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 and both faces cleaned back.
  4. Primer goes on where the product data asks for it.
  5. Backing rod is fitted and the new sealant gunned in and tooled.
  6. We go over the completed work with you before leaving.

What we need from you

  • Confirm the product named in the specification
  • Clear stock, furniture or equipment away from the joints
  • Send asbestos survey details if the building is pre-2000

Get a fixed quote

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, phone 01277 525 020 or email the details over.

Get a price

Read more

Sites and facades in and around Cholsey

The South East is one of the drier parts of the UK. Winter mornings still bring frost and condensation on frames and panels, which is why external dates are agreed with the site manager. Cholsey lies roughly 46 miles out from central London. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, and main contractors there need mastic that keeps to the programme.

New wings at hospitals like Wallingford Community Hospital, 1.8 miles north-east of Cholsey, bring long runs of window and panel joints to seal. With historic properties like Brightwell Manor (2.9 miles north of Cholsey) in the area, refurbishment work often meets old masonry that needs compatible sealants.

Cholsey is about 5 miles south-east of Didcot, in Oxfordshire. Businesses, contractors and managing agents in Cholsey can call on us for facade joints. 423 places across Oxfordshire fall within our area, including Cholsey. Reading is covered too, some 11 miles away.

We cover the OX10 postcode districts for facade joints. We cover commercial and managed buildings on Station Road, Church Road and Lapwing Lane and the roads nearby. Just outside Cholsey, we also work in Winterbrook (1 mile north-east), North Stoke (1 mile east), Moulsford (1 mile south), South Stoke (2 miles south) and Mongewell (2 miles north-east). Further afield, our area takes in Oxford (13 miles north), Didcot (5 miles north-west), Abingdon-on-Thames (9 miles north-west), Thame (14 miles north-east), Wantage (12 miles west) and Henley-on-Thames (11 miles east).

Local landmarks in Cholsey

Recent enquiries here include premises near Wallingford School, Cranford House School and Morning Star pub, among other places. Cholsey has its own railway station: Cholsey station. Nearby you’ll also find Wallingford Castle (2.4 miles north-east). Not far away are Cholsey Marsh and Wittenham Clumps.

Map of Cholsey © OpenStreetMap contributors
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