The Mastic Doctor team standing beside their branded vans outside an office building
Windsor and Maidenhead · England

Facade and window perimeter sealing in Ditton, Windsor and Maidenhead

Facade joint and window perimeter sealing on commercial buildings in Ditton and across Windsor and Maidenhead. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Air leaks through failed facade joints
  • Leaks at window and door perimeters
  • Cladding panel joints that have opened up
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS accredited
Fully insured: £5m PL

Facade sealing in Ditton

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Facade sealing around Ditton: what changes locally

Rainfall across the South East, Ditton included, is lower than in many 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. A good number of hotels sit less than 2 miles from Ditton. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.

Work at a hotel such as The Manor Hotel, 0.8 miles to the south-west of Ditton, tends to be programmed around bookings, mastic included. For contractors on a campus like Royal Holloway University, 4.5 miles to the south of Ditton, facade and perimeter sealing has to fit around students and term dates.

Ditton is about 2 miles south-east of Slough, in Windsor and Maidenhead. Any commercial site in Ditton is covered, for single jobs and planned programmes alike. Our Windsor and Maidenhead coverage takes in 60 places, large and small. Sites around Reading have their own page, roughly 18 miles from Ditton.

If you need facade sealing in SL3, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. If your site is on Thorn Road, Ditton Road and London Road or close by, we can quote for facade joints. Close to Ditton, our area also takes in Datchet (1 mile south-west), Myrke (1 mile north-west), Brands Hill (1 mile south-east), Sunnymeads (2 miles south) and Colnbrook (2 miles east). Further afield, our area takes in Maidenhead (7 miles west), Windsor (3 miles west), Boyn Hill (8 miles west), Cookham (8 miles north-west), Furze Platt (8 miles north-west) and Dedworth (4 miles west).

Around Ditton

Around Ditton, our work takes us to commercial buildings near Upton Court Grammar School, Ditton Park Academy and Ditton Park. For rail, the closest station is Datchet station, about 0.8 miles south-west of the centre. Other landmarks nearby include Museum of Eton Life (1.9 miles west) and Upton Hospital (1.5 miles north-west). The countryside around Ditton includes Stoke Common and Staines Reservoirs.

Map of Ditton © OpenStreetMap contributors

Facade sealing in Ditton

Our facade sealing work covers external facade joints, window and door perimeters, cladding panel joints and the perimeter joints where frames meet the structure on offices, blocks and industrial units. Where sealant is the specified fix, we also take on coping and flashing joints. If you’re dealing with facade joints cracked through the middle and water coming in around window frames, we can help, on perimeter joints where frames meet the structure, shopfront frames and coping and flashing joints alike. Most enquiries from Ditton start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.

Sites around smaller places like Ditton can be a fair drive from suppliers, so we come with everything the package needs. Send drawings or photographs and the programme and we’ll quote to suit.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.

Where
Ditton (SL3)
Wider area
Windsor and Maidenhead
Guarantee
12 months on our workmanship
Quote
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

What sets the cost

Before we quote, we look at:

  • Distance, for remote addresses
  • Whether old sealant has to be cut out first
  • Joint width, depth and condition
  • Specialist products, such as fire-rated or hygienic sealants

Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits.

Details that help us quote

For an accurate fixed quote, we need a clear picture of the site. Useful things to include:

  • Whether an asbestos survey exists
  • A wide shot and a close-up of the area
  • Drawings or a marked-up plan, if available
  • The type of building and who uses it

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, give us a call on 01277 525 020 or send photos by email.

Ditton: questions and answers

Do you cover business parks and estates near Ditton, such as Portland Business Park?

Yes, sites like Portland Business Park are within our area, along with the rest of Ditton. Send details of the unit and the work through our quote form for a quick quote.

Can you work around term dates at a campus such as Royal Holloway University?

Yes. Education sites typically want the work in vacations or in phases during term, and we plan to suit. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Do you guarantee your work?

Yes. Our workmanship is backed for 12 months on every job.

Can the building stay open while you work?

Yes, with some planning. We agree a sequence with your contact so just one area at a time is disrupted.

Can you quote from photos?

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.

Can you look at water coming in around a frame?

Yes. Photos are often enough to start, followed by a visit if needed. Many frame leaks are sealant failures, though not all, and we will tell you which.

How soon can the area be used again?

The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, so we will confirm the curing time on the day.

How a job runs

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 building around Ditton, tell us how to find it and who will meet us. Send that with the details and we’ll confirm the plan with the quote.

  1. Photos, drawings or a visit tell us about the joints and the access.
  2. We confirm the joint type, movement and the specified product.
  3. Failed beads are removed in full and the joint faces cleaned.
  4. Primer goes on where the product data asks for it.
  5. Rod goes in to fix the depth, then the joint is sealed and tooled.
  6. The finished joints are checked with you.

Before we start on site

  • Share your working hours and any access restrictions
  • Point out parking and an unloading spot
  • Send asbestos survey details if the building is pre-2000

Get a fixed quote

To get a fixed quote, phone 01277 525 020 or email a schedule or drawings, telling us the site location and the nature of the job. Our quote form is another easy route.

Ask for a quote

Read more

How the job changes by surface

Precast concrete panels

Precast arrises sometimes crumble or carry old residue. We clean back to sound material and flag edges that need repair before sealing.

Window and door perimeters

Frame materials vary, and so does the preparation. Primer goes on where the manufacturer specifies it for that substrate.

After the work

Regular inspection catches problems early. Specifically:

  • Insist on a full cut-out when joints are renewed
  • Check the asbestos register before old mastic is disturbed
  • Combine resealing with other works that need access
  • Keep sills, gutters and drainage paths clear

Include facade joints in your planned maintenance inspections. Signs to look for are cracking, edges lifting, chalking and stiffness; record the locations.

Deal with sections that fail early as soon as they show. Small repairs stop small leaks becoming large ones behind the facade.

What we’re called out for in Ditton

Adhesive failure, where the sealant peels away from one face, typically comes from poor preparation. Dust, old sealant residue, damp or a missing primer stop it bonding properly, and the joint opens with the first real movement.

These are often picked up first by site or facilities staff:

  • Damp patches beside frames after rain
  • Failed sealant on precast panel joints
  • Draughts around frames and panels
  • Perimeter sealant that has split or peeled away

For contractors at a college like Slough & Langley College (1.3 miles north-east of Ditton), perimeters and internal sealant are timed for the holidays.

Before you book anyone

  • How long is the guarantee, and what does it include?
  • Proof of insurance
  • Their pre-qualification and accreditations
  • Their approach to joint depth and backing

Our contractor checklist

Why deal with it now?

Topping up a failed joint usually buys very little time. A full cut-out and fresh bead is the repair that holds. Converted and older buildings near places like Ditton tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.

Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.

Why clients in Ditton choose us

  • Coloured sealants to suit the setting, where available
  • A fixed quote before work starts
  • A Constructionline member, so easy to vet
  • 12 months’ guarantee on every job

Take a look at what affects the cost or our accreditations and insurance.

Accreditations

Trusted. Accredited. Insured.