Mastic sealant contractors in Dunkirk
Need mastic sealing in Dunkirk? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Estate-wide sealant that is simply worn out
- Draughts at frames across a block
- Leaks at window and door perimeters
Mastic sealing in Dunkirk
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Mastic sealing in Dunkirk
Older blocks and commercial buildings can have mastic that contains asbestos. We check the asbestos register or survey before any old sealant is cut out, and work stops for testing if there’s any doubt. We don’t remove asbestos-containing materials. Site teams most often ask us about occupiers reporting cold air round windows and damp patches beside frames, on communal kitchens and washrooms, communal entrances and stairwells and balcony and threshold joints. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Dunkirk, preparation and product choice get the time they need.
Rural conversions near places like Dunkirk often set modern frames into older stone, flint or brick. Perimeter mastic there has to grip an uneven face and suit the building’s character.
We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.
- Where
- Dunkirk (ME13)
- Region
- Kent
- Guarantee
- 12 months on our workmanship
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
What sets the cost
We price every job individually. The main factors are:
- Which sealant the job calls for
- Removal of failed or old sealant
- Whether the work must be split into stages
- How much there is to seal
Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we will explain how it’s made up.
Details that help us quote
It doesn’t need to be a full survey. A few details are enough to get going:
- Asbestos survey details if the building is older
- Specification clauses that apply
- What the building is and how it’s used
- When you need the work done
Every quote starts with the facts: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.
Dunkirk: questions and answers
Does your area include sites such as Lamberhurst Farm Industrial Estate, near Dunkirk?
Yes. Our area takes in Dunkirk and its surroundings, with estates and business parks such as Lamberhurst Farm Industrial Estate included. Send details of the unit and the work through our quote form for a quick quote.
Is a smaller place like Dunkirk outside your area?
Not at all. Dunkirk is within our area. We work across Greater London and the South East. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.
What if the old mastic contains asbestos?
In older buildings, old mastic can contain asbestos. We ask for the asbestos register or survey before work starts and suspect material is tested first.
How long before the joints can be used?
Curing time varies by product, and we confirm it on the day, and sign any area that should be left alone.
How long will the new sealant last?
It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.
Do you do block-wide mastic programmes?
Yes. We survey and price each building, then work through them in order starting wherever is most urgent.
Can you seal joints high up on a block?
We talk through access for each building when we quote. Tell us the number of storeys and whether scaffold or other access is planned, and we’ll tell you how we’d approach it.
Signs you need mastic sealing in Dunkirk
We often find joints filled solid with no backing rod, so the mastic is glued to the joint bottom too. That three-sided adhesion stops it stretching and splits as the building moves.
Site and facilities staff are often the first to spot these:
- The same joint failures repeated across a portfolio
- Communal area joints that look neglected
- Damp patches beside frames
- A mix of products and colours from past repairs
If you own or manage units on a site such as Lamberhurst Farm Industrial Estate, 2.2 miles to the north of Dunkirk, failed mastic on frames, door surrounds and external joints can be dealt with unit by unit.
Questions to ask before you book
- What the guarantee covers, and for how long
- How joint depth will be controlled
- Proof of insurance
- Will failed sealant be removed rather than covered?
Mastic sealing around Dunkirk: what changes locally
At about 48 miles from central London, Dunkirk is within reach of the capital. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres, and window and balcony mastic on them tends to age at the same rate. Rainfall across the South East, Dunkirk included, is lower than in many 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.
Buildings close to stations like Selling station (to the south-west of Dunkirk) are often flats over shops, with frame mastic to keep sound. Owners of student blocks near University of Kent, 3.7 miles to the east of Dunkirk, can schedule frame and external mastic for the summer vacation.
Dunkirk is about 4 miles south-east of Faversham, in Kent. Anywhere in ME13, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Dunkirk is one of 931 places in Kent on our list. London is covered too, some 48 miles away.
If you need mastic sealing in ME13, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Among the streets we cover are London Road and Courtenay Road, and sites on any of them can send details for a fixed quote. Close to Dunkirk, our area also takes in Boughton under Blean (1 mile west), Winterbourne (1 mile south-west), Hickmans Green (1 mile west), Oversland (1 mile south-west) and South Street (2 miles south-west). A short drive away, we cover Ashford (12 miles south-west), Canterbury (5 miles east), Sittingbourne (11 miles west), Whitstable (5 miles north-east), Faversham (4 miles north-west) and Herne Bay (9 miles north-east).
Near you in Dunkirk
In Dunkirk, that means premises near The Red Lion pub and Mount Ephraim Gardens and the streets around them. For rail, the closest station is Selling station, roughly 1.9 miles south-west of the centre. Well-known places in the area include Chilham Castle (3.5 miles south) and Eastbridge Hospital of St Thomas the Martyr (4.4 miles east). The countryside around Dunkirk includes Blean Woods RSPB Reserve.
Our process
The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Jobs in and around smaller places like Dunkirk are usually planned as a single visit, so we ask for photographs and rough sizes first. That way the right products come on the day.
- We inspect each building and record the joints that have failed.
- The quote is fixed and split as suits you.
- We agree the programme and dates with you.
- Failed sealant is removed and the faces prepared.
- New sealant goes in with backing rod and primer where needed.
- Each building is checked and signed off with the 12-month guarantee.
Preparing the site
- Share your working hours and any access restrictions
- Agree which areas must stay open
- Share the asbestos register for older buildings
Getting a fixed quote
Need a figure for a tender or a budget? We will quote against your scope and drawings you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or email a schedule or drawings.
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Should maintenance staff do it?
Redoing a failed joint normally costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Owners, agents and contractors
If you look after buildings for someone else, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
Hotels, schools, healthcare sites, offices and retail units book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.
What happens if it’s left?
Draughts round window perimeters cost occupiers comfort and the windows usually get the blame. In many cases, new perimeter sealant deals with it when the frames themselves are sound. For buildings around smaller places like Dunkirk, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.
Pricing mastic joints depends on how many there are, their condition and the access, plus any specification you’re working to. Ask us for a fixed quote.
Why appoint us
- Sealing commercial buildings since 2005
- CHAS accredited contractor
- Fixed quotes based on photographs, drawings or a visit
- Old sealant cut out, never sealed over