Mastic sealing for building owners and managing agents in Wilmington, East Sussex
Planning work on a mastic joint in Wilmington? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Occupiers reporting cold air round windows
- Patchy repairs in mismatched sealant
- Window mastic that has split and shrunk
Mastic sealing for businesses in Wilmington
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Commercial clients in Wilmington
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.
How we handle mastic sealing in Wilmington
Older blocks and commercial buildings can have mastic that contains asbestos. Before we disturb it, we ask to see the asbestos register or survey and if it’s suspected, work stops until it’s tested. Removing asbestos-containing material isn’t something we do. We work on shopfronts below residential blocks, window and door perimeters on blocks and communal kitchens and washrooms, and the failures we are asked to look at most are estate-wide sealant that is simply worn out and worn sealant at communal door frames. For commercial sealant work in Wilmington, you deal with one contact from quote to sign-off, whether it’s one building or several.
Owners and agents with buildings around smaller places such as Wilmington tend to manage small terraces of association properties, converted barns and commercial units. Frame and wall-joint mastic on all of them ages and hardens.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.
- Where
- Wilmington (BN26)
- Region
- East Sussex
- Cover
- 12 months on every job
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
When something else is needed
Sealant solves a lot, but not everything, and we’re upfront when that’s the case. These need a different solution:
- Roof leaks, gutters or failed flashings that aren’t sealant joints
- Materials that need asbestos testing before work
- Failed window or door frames, which need a window contractor
Not sure which it is? You can phone 01277 525 020 or email drawings and photos and we will tell you honestly.
What we seal
- Window and door perimeters on blocks
- Balcony and threshold joints
- Communal entrances and stairwells
- Shopfronts below residential blocks
- Communal kitchens and washrooms
- External wall and movement joints
Doing it in-house
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. That’s why many clients bring in a specialist from the beginning.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Common questions from Wilmington clients
Do you work for managing agents with blocks near Berwick (Sussex) station?
Yes. Blocks of any size are within what we do. Photos of each elevation help us quote accurately.
Is Wilmington off your patch?
No. Places such as Wilmington are covered as much as the big towns. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.
How long before the joints can be used?
We’ll confirm how long the chosen product needs to cure, and sign any area that should be left alone.
Can you reseal a whole block or estate?
Yes, planned programmes suit estates and portfolios. You get a fixed quote per building or for the whole job.
Does weather matter for sealant work?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Internal work is far less affected.
Will you just go over the old sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
Is asbestos a concern with old mastic?
Some mastics in pre-2000 buildings contain asbestos. We ask for the asbestos register or survey before work starts and suspect material is tested first.
How the job changes by surface
Tenement and older buildings
Some old mastics in pre-2000 buildings contain asbestos and the register is checked before anything is disturbed. If it’s suspected, work stops until it’s tested.
External movement joints
The joint width has to suit the movement and the sealant’s capability with the width-to-depth ratio set as the manufacturer advises.
Leave it or put it right?
Leaving failed external joints lets water reach the structure behind. That can lead to damp, staining and damage to finishes and those cost far more to put right. Converted and older buildings near places like Wilmington tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.
The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site rules also count.
Why clients in Wilmington choose us
- Colour options checked against the specified product
- 12 months’ guarantee on every job
- CHAS accredited contractor
- Specification-led, product-correct work
Planned mastic for Wilmington portfolios
Wilmington lies roughly 48 miles out from central London. Within reach of London, blocks run by agents and associations are common around stations. Wilmington sits in one of the drier corners of the country, the South East. Even so, frame mastic only goes on in dry, workable conditions, and the sunniest, most exposed sides of a building typically need attention first.
Blocks of flats and mixed-use buildings often cluster around stations such as Berwick (Sussex) station (to the north-west of Wilmington) and their window and balcony mastic tends to age at the same rate across a building. For a school such as Willingdon Community School, perimeter mastic on windows and doors is a holiday job. Property owners at sites such as Berwick Court Farm Business Park, 1.3 miles west of Wilmington, can have mastic renewed between lettings.
Wilmington is about 4 miles south-west of Hailsham, in East Sussex. Businesses, contractors and managing agents in Wilmington can call on us for mastic joints. 308 places across East Sussex fall within our area, Wilmington among them. We also cover Brighton, around 14 miles from Wilmington.
If you need mastic sealing in BN26, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. For a building on The Street and Ades Field or nearby, send details and we’ll quote for mastic joints. Sites close to Wilmington are covered too, including Milton Street (1 mile south-west), Winton (2 miles west), Arlington (2 miles north), Berwick (2 miles north-west) and Lullington (2 miles south-west). Further afield, our area takes in Eastbourne (5 miles south-east), Bexhill-on-Sea (12 miles east), Seaford (5 miles south-west), Lewes (9 miles north-west), Hailsham (4 miles north-east) and Uckfield (11 miles north).
Around Wilmington
Recent enquiries here include premises near The Sussex Ox pub, among other places. The nearest railway station is Berwick (Sussex) station, roughly 1.8 miles north-west of the centre. A little further out are Agricultural Museum (under half a mile south) and Burlough Castle (1 mile west). The countryside around Wilmington includes Combe Hill.
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. Jobs in and around smaller places like Wilmington 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.
- A building-by-building inspection lists the failed joints.
- 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.
Before we start on site
- Let us know about inductions and permits
- Share the asbestos register for older buildings
- Tell us which areas need to stay in use
Get a fixed quote
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, call 01277 525 020 or email the details over.