Construction and new-build mastic in Selmeston, East Sussex
Commercial sealant work in Selmeston for contractors, FMs and building owners: mastic packages for new-build and refurbishment projects, quoted at a fixed price.
- Sealant knocked or painted over by other trades
- Frame perimeters left unsealed or poorly sealed
- Different trades sealing to different standards
Construction mastic for businesses in Selmeston
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Why it’s worth doing now in Selmeston
On a refurbishment, there’s a choice between resealing existing frames and replacing them. Sound frames often need only a new perimeter seal and that’s a far smaller job. If the frame is life-expired, we’ll tell you. Around Selmeston, it’s better to renew all the failing joints at once. Photos of every joint help us quote for the whole job.
The specified product makes a difference, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.
Why choose Mastic Doctor in Selmeston
- Work carried out by CSCS-carded applicators
- Products installed to the manufacturer’s instructions
- RAL and finish matching where the product range allows
- Clear, fixed quotes
Construction mastic in Selmeston, done properly
Mastic Doctor has been a subcontractor on construction projects for over 20 years. Quantities come off the drawings, the sequence is agreed with the site manager and the work follows the trades. For construction mastic on a scheme in Selmeston, send drawings through our quote form, or phone or email us to talk it through. Most enquiries involve inconsistent sealant finishes from plot to plot and new external sealant already peeling away, across cladding and panel joints, sanitary and kitchen joints and brick and block movement joints. A specialist sealant contractor works differently from a general builder: in Selmeston, that means joint design, primers and backing rod as standard.
Around smaller places like Selmeston, building work usually 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.
We stand by our work: 12 months, guaranteed. That covers our preparation and application, and we come back if anything isn’t right.
- Where
- Selmeston (BN26)
- Region
- East Sussex
- Cover
- 12 months on every job
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Honest limits
Being straight saves everyone time. New sealant won’t cure:
- Fire-stopping design or sign-off (that’s for the designer, fire engineer and building control)
- Damage to finishes by other trades after we’ve sealed
- Glazing units that are cracked or misted
If in doubt, call the office on 01277 525 020 or use the quote form and we’ll say what we think.
What we seal
- Window and door perimeters
- Internal decorators’ caulk
- Sanitary and kitchen joints
- Cladding and panel joints
- Brick and block movement joints
- Floor and skirting junctions
Construction mastic around Selmeston: how the place shapes the job
Selmeston lies roughly 47 miles out from central London. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, and each scheme needs its mastic sealed to programme. The South East is one of the drier parts of the UK. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so the external programme keeps a little slack.
For contractors refurbishing units at places like Berwick Court Farm Business Park, 1.8 miles to the south-east of Selmeston, the mastic covers cladding panels, roller-door and window perimeters. New wings at hospitals like Chailey Heritage Marine Hospital, 5.3 miles to the south-west of Selmeston, bring long runs of window and panel joints to seal. With historic properties like Charleston Farmhouse (to the west of Selmeston) in the area, refurbishment work often meets old masonry that needs compatible sealants.
Selmeston is about 5 miles north of Seaford, in East Sussex. Commercial clients in Selmeston can call on us for mastic packages. Our East Sussex coverage takes in 308 places, from busy centres to rural villages. For work in that direction, see our Brighton page.
We take on mastic packages across the BN26 postcode area. For a building on The Street and Lewes Road or nearby, we can quote for mastic packages. We also cover Alciston (1 mile south), Berwick (1 mile east), Ripe (2 miles north), Winton (2 miles south) and Wickstreet (2 miles north-east). Bigger towns within reach include Eastbourne (7 miles south-east), Bexhill-on-Sea (14 miles east), Seaford (5 miles south), Lewes (6 miles west), Hailsham (5 miles east) and Crowborough (14 miles north).
Landmarks near Selmeston
Around Selmeston, our work takes us to commercial buildings near The Barley Mow pub. Selmeston’s nearest station is Berwick (Sussex) station, about 1 mile east. Nearby you’ll also find Drusillas Museum (1.8 miles south-east) and Chailey Heritage Marine Hospital (5.3 miles south-west). The countryside around Selmeston includes Firle Beacon.
Questions we’re asked in Selmeston
Is Selmeston off your patch?
No. Places such as Selmeston are covered as much as the big towns. London and every South East county are within our area. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.
Can you work around term dates at a campus such as University of Brighton?
Yes. We plan campus work around teaching, exams and residence turnarounds. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
Do you need to see the site first?
It depends on the job. Straightforward work can often be priced from photographs and measurements, while larger or less clear jobs get a site visit first.
Is colour matching possible?
Often, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We’ll confirm the colours available for the specified product.
What does a mastic package normally include?
External perimeters and movement joints, internal caulking where specified, sanitary and kitchen joints, plus snagging.
Do you do fire-rated sealing on new builds?
Fire-rated sealing at service penetrations and linear gaps can be included where specified. Record requirements are confirmed at quote stage.
What site paperwork can you supply?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.
General trades versus a specialist
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
What else we do in Selmeston
On site: what to expect
Working in a building that stays open takes some planning. The work area is signed and kept contained, keep walkways clear and work section by section so the rest of the building stays in use. Smaller jobs around Selmeston can be grouped with others nearby, which keeps travel down. You’ll have a fixed quote before work starts.
- First we take quantities off the drawings and read through the specification.
- A fixed quote sets out the scope, the products and the sequence.
- Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
- Work follows the programme, area by area, as rooms and elevations become ready.
- Every joint is prepared, set to depth and sealed with the specified product.
- We close out snagging and hand over with a 12-month guarantee.
Before we start on site
- Flag any permit to work we will need
- Point out any areas we must not close
- Make sure the joints can be reached
Ask for a quote
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, call 01277 525 020 or email a schedule or drawings.
Related advice
Aftercare for building managers
Cleaning and maintenance staff play a part too. Share these points with them:
- Don’t schedule sealing before decorators and flooring are done
- Note which sealant went where at handover
- Brief following trades on areas that have been sealed
- Ask cleaners to use soft cloths around fresh sealant
If a joint is damaged after sealing, flag it early. We can return to clear snags before handover, priced as part of the package or separately.
Snag items left to the last week put handover at risk. Clearing snags area by area spreads the work out and keeps handover on track.
Different surfaces, different methods
Internal decorators’ caulk
Where the specification calls for it, acrylic decorators’ caulk goes on non-moving internal gaps before painting. It’s paintable and suits gaps that don’t move.
Window and door perimeters
Gaps around frames have to be within the sealant’s range. We check them during the first walk-round and flag any that need packing or adjusting.