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

Facade Sealing contractors in Dallington

Planning work on a facade joint in Dallington? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Previous reseals run over old sealant
  • Old perimeter mastic that has dried out
  • Failed seals around shopfront and entrance frames
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.
London, the South East & Scotland
Constructionline member
£5m public liability

Facade sealing across Dallington

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

How we handle facade sealing in Dallington

Weather decides a lot in facade sealing. Joints have to be dry and the air and surface temperature within the product’s range, and cold, damp starts can delay work. We plan for that and keep you updated. If you have unsightly perimeter sealant on a visible elevation and leaks at window and door perimeters, we can put it right. One point of contact handles commercial sealant work in Dallington from the first photos to the final walk-round, whether it’s one building or several.

Around smaller places like Dallington, building work typically means conversions of farm buildings, a few new houses or an extension to a hall or school. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.

Our 12-month guarantee is about workmanship, not 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.

Location
Dallington (TN21)
Region
East Sussex
Guarantee
A 12-month guarantee
Quote
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Building owners, agents and FMs in Dallington

We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Dallington can form part of a wider programme across East Sussex.

Building owners and managing agents use us on everything from one building to a spread of sites around Dallington. One quote can cover more than one site, which keeps the paperwork simple.

What the job involves on each surface

Window and door perimeters

Frame-to-wall joints at windows and doors are the facade joints we reseal most. A low-modulus neutral-cure product, chosen for the frame and wall, goes in.

Coping and flashing joints

Coping and flashing joints are included where sealant is the specified fix. They sit in the most exposed positions on the building, so preparation and product choice matter.

Your questions answered

Is a smaller place like Dallington outside your area?

No. Places such as Dallington are covered as much as the big towns. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.

Can you work to our programme on a site in or near Dallington?

Yes. The mastic is planned around your key stages. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.

When can the area be used after sealing?

We will confirm how long the chosen product needs to cure.

Which sealant do you use on facades?

Most facade and window perimeter joints take a low-modulus neutral-cure silicone. Some joints call for hybrid, PU or polysulphide instead, depending on the substrate and the specification.

Are your applicators CSCS-carded?

Yes. Should the site need card details in advance, tell us and we will confirm them with the quote.

How do you choose the sealant?

Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

Can you follow the specification on our project?

Yes. The specification and the manufacturer’s installation guidance are what we work to.

New build and refits around Dallington

The South East is one of the drier parts of the UK. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so the external programme keeps a little slack. Dallington lies roughly 43 miles out from central London. Towns within reach of London tend to keep building, from flats to offices and schools, and each scheme needs its mastic sealed to programme.

Hospital estates such as Hellingly Hospital, 5.6 miles south-west of Dallington, tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan. Historic houses such as Bateman's, 3.1 miles to the north of Dallington, are a reminder of the older buildings in the wider area, where sealing against old stone, brick or timber needs compatible products.

Dallington is about 7 miles north-east of Hailsham, in East Sussex. Commercial clients in Dallington can call on us for facade joints. Across East Sussex, 308 places are covered, including Dallington. Sites around Brighton have their own page, roughly 23 miles from Dallington.

Business premises anywhere in TN21 are within our area. Sites close to Dallington are covered too, including Wood's Corner (1 mile east), Rushlake Green (2 miles west), Punnett's Town (2 miles north-west), Brownbread Street (3 miles south-east) and Burwash Common (3 miles north). Nearby towns on our patch include Eastbourne (12 miles south), Hastings (10 miles south-east), Bexhill-on-Sea (8 miles south-east), Hailsham (7 miles south-west), Crowborough (11 miles north-west) and St Leonards (11 miles south-east).

Landmarks near Dallington

A little further out are Old Castle (under half a mile west) and Hellingly Hospital (5.6 miles south-west).

Map of Dallington © OpenStreetMap contributors

What sealant work can’t fix

We check first that sealant really is the fix. It won’t put right:

  • Leaks from roofs, gutters or failed flashings rather than sealant joints
  • Joints whose design needs changing by the specifier
  • Providing access systems for the work

If you are not sure, just ring 01277 525 020 or send photos by email and we will give you a straight answer before you book.

Surfaces we seal

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

Signs you need facade sealing in Dallington

Overlaying old sealant is a common shortcut that fails quickly. Fresh silicone won’t stick to cured silicone, and the patch soon lifts.

Site and facilities staff are often the first to spot these:

  • New sealant peeling off old mastic
  • Old perimeter mastic that has dried out
  • Sealant pulling away from frames or panels
  • Damp patches beside frames after rain

School extensions, at buildings such as Dallington Church of England Primary School, usually run to the summer holidays, mastic included.

Comparing quotes

  • Their public liability cover
  • What the guarantee covers, and for how long
  • How the existing material will be dealt with
  • Do they follow the manufacturer’s priming guidance?

Questions to ask before you appoint anyone

Maintenance after handover

Problems stay small when the joints are checked regularly. In particular:

  • Inspect facade joints on a regular cycle
  • Never let anyone seal over old sealant
  • Don’t wait for a second leak before calling
  • Confirm the survey covers external sealants in older buildings

Following storms, look inside for damp or staining near frames. An early report typically means a small reseal rather than a bigger repair.

Tie resealing in with redecoration, cladding repairs or other access. Sharing the access keeps the cost down and limits disruption.

Diagnose, treat, sign off

We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. Once we’re cleared to begin, the joints are worked through in the order agreed with your site contact, and each area is checked before we leave it. For a building around Dallington, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.

  1. Access, site rules and timing are settled with the client up front.
  2. Weather and temperature are checked against the product’s limits.
  3. We remove the old bead and check the edges are sound.
  4. Faces are cleaned, primed where needed and backed.
  5. Sealant is gunned in and tooled hard onto both faces.
  6. We hand over with our 12-month workmanship guarantee.

Getting the site ready

  • For older buildings, check the asbestos register before work
  • Send any specification or drawings in advance
  • Let us know about inductions and permits

Quotes

Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, give us a call on 01277 525 020 or email drawings and photos.

Get a price

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