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

Mastic sealing for building owners and managing agents in Ditton, Windsor and Maidenhead

Mastic sealing for Ditton, from a contractor working since 2005. Fully insured and CHAS accredited.

  • Occupiers reporting cold air round windows
  • No planned programme for sealant
  • Old repairs sealed over failed mastic
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
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Mastic sealing across Ditton

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

Different surfaces, different methods

Tenement and older buildings

Stone needs a neutral-cure product, so we pick a grade that won’t mark it.

Communal areas

Communal entrances, stairwells and corridors have joints at door frames, screens, skirting and floor edges. Fresh joints make shared areas look looked after.

Mastic sealing in Ditton

Most buildings come with mastic joints nobody has looked at since handover, and it ages quietly: window perimeters, door frames, external joints and communal junctions all rely on it. When it hardens, splits or pulls away, water and draughts follow, and occupiers start reporting it. The enquiries we see most involve draught complaints from residents or tenants and repeated reactive repairs to the same buildings, on shopfronts below residential blocks, balcony and threshold joints and external wall and movement joints. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Ditton, preparation and product choice get the time they need.

Rural conversions near places like Ditton often set modern frames into older stone, flint or brick. The mastic needs to suit an irregular masonry face and the look of the building.

We stand behind the joints we seal with a 12-month guarantee. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Ditton (SL3)
Wider area
Windsor and Maidenhead
Guarantee
12 months on every job
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026

Looking after the joints

Regular inspection catches problems early. Specifically:

  • Log resealing dates block by block
  • Mention RAMS, insurance or CSCS requirements up front
  • Look at the sunniest and most exposed elevations first
  • Keep bins and bikes away from communal door frames

Keep bins, bikes and deliveries away from low-level joints where you can. Damage at low level is the most common reason communal joints fail early.

One failed perimeter typically means others on the same building are close, so it pays to look at the whole elevation. A planned reseal saves repeated visits.

What affects the price in Ditton

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

  • Joint width, depth and condition
  • Phasing around occupants
  • How much there is to seal
  • Site requirements such as inductions and permits

What a job costs comes down to how many linear metres there are, what has to come out first and how the joints are reached. Call for a fixed quote when you’re ready.

Before you send an enquiry

It doesn’t need to be a full survey. These details are enough to start:

  • Access details, including height
  • What the building is and how it’s used
  • Drawings or a marked-up plan, if available
  • Any dates the work must fit around

Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. If you have questions first, give us a call on 01277 525 020 or email the details over.

Common questions from Ditton clients

Is Ditton off your patch?

Not at all. Ditton is within our area. Our area covers London and the South East counties. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Will you take on a block within reach of Datchet station?

Yes, and several blocks can go on one quote. Give us the building’s details and say how residents are notified, and we will quote and plan to suit.

When can the area be used after sealing?

That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.

Is asbestos a concern with old mastic?

In older buildings, old mastic can contain asbestos. We check the asbestos register or survey before disturbing it, and if it’s suspected, work stops until it’s tested.

Can you plan resealing across several buildings?

We can. Each building is inspected, quoted and scheduled in turn starting wherever is most urgent.

Will residents or tenants be disturbed?

Occupiers stay in the building throughout. If any flats or units need access, we will tell you in advance so it can be arranged.

Can you take on resealing for a block portfolio?

We do. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords, and we quote building by building or as a programme.

Mastic sealing in Ditton: the local picture

Rainfall across the South East, Ditton 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. Ditton is about 20 miles from central London. Managed blocks of flats are a big part of commuter-belt property; their frame mastic often ages block-wide.

For owners of several units at places like Portland Business Park, 0.8 miles south-west of Ditton, one programme can deal with frame and external mastic across the lot. For a school such as Castleview Primary School, perimeter mastic on windows and doors is a holiday job. Student accommodation around universities such as Royal Holloway University (to the south of Ditton) is usually managed block by block, which suits a planned mastic programme.

Ditton is about 2 miles south-east of Slough, in Windsor and Maidenhead. Ditton sits inside our coverage, with the same fixed quotes and 12-month guarantee as everywhere else. 60 places across Windsor and Maidenhead fall within our area, Ditton among them. Sites around Reading have their own page, about 18 miles away.

If you need mastic sealing in SL3, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on Thorn Road, Ditton Road and London Road or close by, send details and we’ll quote for mastic joints. Sites close to Ditton are covered too, including 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). Bigger towns within reach include 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).

What’s near Ditton

Around Ditton, our work takes us to commercial buildings near Upton Court Grammar School, Ditton Park Academy and Ditton Park and the streets around them. For rail, the closest station is Datchet station, roughly 0.8 miles south-west. Nearby you will also find Museum of Eton Life (1.9 miles west) and Upton Hospital (1.5 miles north-west). Not far away are Stoke Common and Staines Reservoirs.

Map of Ditton © OpenStreetMap contributors

Honest limits

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • Materials that need asbestos testing before work
  • Leaks through the frame itself rather than the perimeter
  • Misted or failed double-glazed units

Not sure which it is? You can ring 01277 525 020 or send details through our quote form and we will tell you honestly before you book.

Joints and surfaces we work on

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

Our process

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Jobs in and around smaller places like Ditton are normally planned as a single visit, so photographs and measurements up front really help. Then the right materials arrive with us.

  1. We inspect the joints, building by building, and record what has failed and why.
  2. You get a fixed quote, priced per building where that helps your budgeting.
  3. The programme is fixed with you, including dates you can pass on to residents or tenants.
  4. We remove the old mastic completely and clean the joint faces back.
  5. Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
  6. Completed joints are inspected and carry a 12-month workmanship guarantee.

What we need from you

  • Make sure the joints can be reached
  • Tell staff and tenants when we will be in
  • Have the specification and drawings to hand

Ask for a quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call 01277 525 020 or use the quote form with what you know.

Get a price

Read more

Work for main contractors and building owners

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

As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.

Accreditations

Trusted. Accredited. Insured.