Mastic sealing for building owners and managing agents in Deal, Kent
We carry out mastic sealing for building owners, managing agents and housing associations in Deal and the surrounding area. Send details for a fixed quote.
- Estate-wide sealant that is simply worn out
- Window mastic that has split and shrunk
- Failed external movement joints
Need mastic sealing in Deal?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
About our mastic sealing in Deal
Across Deal and the rest of Kent, we work the same way: you send details, we return a fixed quote, the joints are resealed and the 12-month guarantee follows. Addresses, photos of typical joints and a rough idea of quantities let us give a quick quote, and site visits can be arranged. We work on external wall and movement joints, communal kitchens and washrooms and shopfronts below residential blocks, and the failures we’re asked to look at most are open joints in brickwork or panels and complaints coming in block by block. For commercial sealant work in Deal, you deal with one contact from quote to sign-off, whether it’s one building or several.
In a town such as Deal, buildings managed by agents and landlords range from flats over shops to small blocks and offices. Mastic around frames, external joints and communal doors ages and needs renewing.
What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Where
- Deal (CT14)
- Wider area
- Kent
- Cover
- 12 months on every job
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Looking after the joints
Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:
- Check the asbestos register before any old mastic is disturbed
- Log resealing dates block by block
- Keep bins and bikes away from communal door frames
- Plan resealing building by building rather than complaint by complaint
Ask residents or tenants to report draughts or leaks round windows early. A quick report keeps a small repair small.
Joints on a building age together so a single failure is a sign to check the rest. Doing them together saves going back again and again.
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 the sealant is tooled off neatly. If you have more than one building in Deal, they can often be done on the same visit. Tell us when the building is open and we will plan to suit.
- First we look at the mastic on each building and note what needs replacing.
- You get a fixed quote, priced per building where that helps your budgeting.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- We remove the old mastic completely and clean the joint faces back.
- Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
Preparing the site
- Share the asbestos register for older buildings
- Explain the parking and delivery arrangements
- Tell us what induction or permit system the site runs
Get a fixed quote
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.
Related advice
Nearby places to Deal
Also in Deal
Why it’s worth doing now in Deal
Dealing with failed joints one report at a time is slow and scattered. Planned resealing covers a whole building or estate in one go and is simpler to manage and budget. In a town like Deal, a split, stained or mouldy joint is often the first thing visitors notice. Fresh sealant makes a building look maintained.
The specified product makes a difference, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.
Why clients in Deal choose us
- Over 20 years of commercial sealing
- Specification-led, product-correct work
- Fully insured
- Coloured sealants to suit the setting, where available
Take a look at what affects the cost or our accreditations and insurance.
Common questions from Deal clients
Do you work for managing agents with blocks near Deal station?
Yes, we work for agents, landlords and housing associations with blocks of every size. Give us the building’s details and say how residents are notified, and we will quote and plan to suit.
Do you take on block-wide or estate-wide mastic work in Deal?
Yes. Portfolio-wide programmes are a regular request. Residents are given notice through you, and the work moves building by building.
What if the old mastic contains asbestos?
Asbestos removal isn’t part of our work. Anything suspect is tested before we carry on in line with the dutyholder’s asbestos management.
Who decides which product is used?
If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
Will residents or tenants be disturbed?
Residents and tenants carry on as normal. We flag any areas that need internal access well before the dates so it can be arranged.
Can you send RAMS and CSCS details before starting?
Our credentials include CHAS, Constructionline and public liability insurance. For specific documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
Do you work for managing agents and housing associations?
Yes, block and estate work is a core part of what we do. Buildings are scheduled in turn so you can plan around it.
Looking after buildings in and around Deal
Deal sits close to the coast, within about 1 mile. Blocks and commercial buildings facing the sea take the most weather on their window perimeters and external joints, so it’s worth inspecting those sides more often. The South East is one of the drier parts of the UK. Outside mastic still needs a dry joint and the right temperature, and south- and west-facing elevations, which take the most sun and rain, often age first.
Site managers at schools like Castle Community College can fit frame mastic into the summer works. Older buildings near Deal, from historic houses such as Walmer Castle, 1.2 miles to the south of Deal, to more modest stock, need compatible products when frames are resealed.
Deal is about 14 miles east of Canterbury, in Kent. Businesses, contractors and managing agents in Deal can call on us for mastic joints. Deal is one of 931 places in Kent on our list. We also cover London, around 67 miles from Deal.
We take on mastic joints across the CT14 postcode area, whatever the building. We cover commercial and managed buildings on London Road, Forelands Square and Herschell Square. Deal sits on or close to the A258 and B2056, which helps when planning parking and deliveries for the job. Close to Deal, our area also takes in Mill Hill (1 mile west), Walmer (1 mile south), Sholden (1 mile north-west), Sholden Meadows (1 mile north-west) and Great Mongeham (1 mile west). A short drive away, we cover Canterbury (14 miles west), Margate (11 miles north), Dover (7 miles south-west), Folkestone (13 miles south-west), Ramsgate (8 miles north) and Broadstairs (10 miles north).
Local landmarks in Deal
Around Deal, our work takes us to commercial buildings near Betteshanger Park, Brickmakers Arms and Deal Parochial Church of England Primary School and the streets around them. The nearest railway station is Deal station, about 0.5 miles north-east. Well-known places in the area include Kent Museum of the Moving Image (0.6 miles north-east) and Deal Castle (0.5 miles east).
Honest limits
Part of a good diagnosis is knowing where sealant stops. You will hear from us if the cause turns out to be one of these:
- Leaks from above rather than through a joint
- Failed window or door frames, which need a window contractor
- Misted or failed double-glazed units
If in doubt, speak to us on 01277 525 020 or email a schedule or drawings and we will say what we think before you book.
Surfaces we seal
- Communal entrances and stairwells
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- External wall and movement joints
- Shopfronts below residential blocks
- Balcony and threshold joints
Site staff or a sealant specialist?
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.
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Signs you need mastic sealing in Deal
Much failed sealant was laid on dirty, dusty or damp surfaces. Where the faces weren’t cleaned or primed as specified, the bead peels off one side.
Typical triggers for a call:
- Complaints coming in block by block
- The same joint failures repeated across a portfolio
- Occupiers reporting cold air round windows
- Failed external movement joints
For agents with blocks near Deal station, 0.5 miles to the north-east of Deal, a block-wide mastic programme deals with frames, balconies and entrances in one go.
Questions to ask before you book
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Do they follow the manufacturer’s priming guidance?
- Which product they’ll use, and why it suits the joint
- Will RAMS and insurance details be available?