Alciston mastic sealing
Planning work on a mastic joint in Alciston? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Draughts at frames across a block
- Worn sealant at communal door frames
- Window mastic that has split and shrunk
Mastic sealing near Alciston
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
About our mastic sealing in Alciston
There isn’t one mastic for every joint on a building. Window perimeters and external joints often take a low-modulus neutral-cure silicone, while hybrid polymer sealants grip many materials and are often paintable, and colours are confirmed for whichever product is used. Most enquiries involve communal area joints that look neglected and the same joint failures repeated across a portfolio, on communal entrances and stairwells, shopfronts below residential blocks and balcony and threshold joints. Facilities teams, main contractors and managing agents in Alciston tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
Owners and agents with buildings around smaller places such as Alciston tend to manage small terraces of association properties, converted barns and commercial units. Mastic around frames and on external joints wears out in time, whatever the building.
We stand behind the joints we seal with a 12-month guarantee. That covers our preparation and application.
- Location
- Alciston (BN26)
- Wider area
- East Sussex
- Guarantee
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
When to call us in Alciston
Sunlight and weather break mastic down over time. The surface chalks, the body stiffens and cracks appear, especially on south and west faces.
Typical triggers for a call:
- Leaks at window and door perimeters
- Worn sealant at communal door frames
- Mastic failing across several blocks on an estate
- Complaints coming in block by block
Churches, halls and community buildings such as The Parish Church are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time.
What to look for in a quote
- Are they CHAS accredited or on Constructionline?
- Whether primer will be used where the manufacturer specifies it
- Is the sealant right for the movement and the substrate?
- How they handle RAMS and site documents
Our process
Site rules come first: sign-in, induction and whatever permit system the building uses. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. For work around Alciston, we aim to finish in one visit, so photographs and measurements up front really help. 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.
- Dates and areas are agreed so occupiers can be told.
- Failed sealant is removed and the faces prepared.
- Joints are resealed and tooled.
- Each building is checked and signed off with the 12-month guarantee.
What we need from you
- Move anything stored against the joints
- Agree which areas must stay open
- Tell us your opening times and when work is allowed
Quotes
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, speak to us on 01277 525 020 or email a schedule or drawings.
Advice
Places near Alciston
More services for Alciston
After the work
Once the work is signed off, these steps help:
- Encourage occupiers to report problems at frames
- Log resealing dates block by block
- Include mastic in your cyclical inspections
- Mention RAMS, insurance or CSCS requirements up front
Protect entrance and corridor joints from knocks where possible. Knocks cause many early failures in communal areas.
Water getting in round frames can damage plaster, decoration and the frames themselves. Resealing early keeps the job small.
Site staff or a sealant specialist?
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
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.
Mastic sealing around Alciston: what changes locally
Alciston lies roughly 47 miles out from central London. Managed blocks of flats are a big part of commuter-belt property; their frame mastic often ages block-wide. Rainfall across the South East, Alciston included, is lower than in many parts of the UK. External mastic still waits for dry faces and the right temperature, and elevations facing the sun and the prevailing weather are normally where frame mastic ages first.
Property owners at sites such as Berwick Court Farm Business Park (to the south-east of Alciston) can have mastic renewed between lettings. Historic properties like Charleston Farmhouse (1.3 miles north-west of Alciston) show the age of some local stock, where frame mastic must suit soft brick or stone.
Alciston is about 4 miles north of Seaford, in East Sussex. We cover commercial sites throughout Alciston. Alciston is one of 308 places we cover in East Sussex. There’s a separate page for Brighton, roughly 12 miles from Alciston.
Postcode districts covered here: BN26 for mastic joints. If your building is just outside Alciston, we cover Selmeston (1 mile north), Berwick (1 mile north-east), Winton (1 mile south-east), Alfriston (2 miles south-east) and Milton Street (2 miles south-east). Nearby towns on our patch include Eastbourne (7 miles south-east), Bexhill-on-Sea (14 miles east), Seaford (4 miles south), Lewes (7 miles north-west), Hailsham (6 miles north-east) and Crowborough (15 miles north).
What’s near Alciston
In Alciston, that means premises near Rose Cottage Inn, among other places. The nearest railway station is Berwick (Sussex) station, about 1.3 miles north-east of the centre. Other landmarks nearby include Arlington Castle (1.7 miles south-east) and Chailey Heritage Marine Hospital (4.6 miles south-west). For a walk, there’s Firle Beacon.
Honest limits
Not every problem is a sealant problem, and we’d rather tell you before you spend money. These need a different solution:
- Glazing that needs replacing
- Leaks through the frame itself rather than the perimeter
- Masonry that has broken away beside the joint
If you are not sure, just call the office on 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer before you book.
Where we work in Alciston
- Communal entrances and stairwells
- Balcony and threshold joints
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- External wall and movement joints
- Shopfronts below residential blocks
Cost factors for mastic joints
We price every job individually. The main factors are:
- Induction, permit and paperwork requirements
- Backing rod, priming and other preparation
- Phasing around occupants
- Location, for remote and island sites
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote and we’ll put a fixed figure on it.
What to include in your enquiry
For an accurate fixed quote, we need to understand the site. Send us:
- Whether an asbestos survey exists
- The type of building and who uses it
- Approximate linear metres or a joint schedule
- How the joints are reached, and at what height
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.
Alciston: questions and answers
Is Alciston too small for you to travel to?
Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.
Will you take on a block within reach of Berwick (Sussex) station?
Yes, we work for agents, landlords and housing associations with blocks of every size. We work to your notice and access arrangements.
How do you reach windows on upper floors?
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 will tell you how we’d approach it.
Do you supply RAMS and insurance details?
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.
Can people stay in the building while you reseal?
Residents and tenants carry on as normal. We flag any areas that need internal access well before the dates so it can be arranged.
Is it fine to apply new sealant on top of old?
No. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and we’ll price the work to it, flagging anything that needs clarifying.