Mastic sealant contractors in Friston
Mastic sealing for building owners, managing agents and housing associations in Friston and across East Sussex. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- The same joint failures repeated across a portfolio
- Occupiers reporting cold air round windows
- Complaints coming in block by block
Mastic sealing for businesses in Friston
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Surface by surface
External movement joints
Movement joints are cleaned out, backed with rod and resealed with a sealant of the right movement class.
Communal areas
Joints at low level in communal areas take knocks from bins, bikes and buggies, so they often need renewing sooner.
Mastic sealing in Friston, done properly
On a residential block, the work happens around people’s lives. The sequence, the areas and the dates are settled with you so you can let residents know what is happening. Communal entrances and stairs stay usable throughout. The enquiries we see most involve leaks at window and door perimeters and movement joints with sealant missing, across communal entrances and stairwells, communal kitchens and washrooms and shopfronts below residential blocks. Looking for mastic applicators who cover Friston? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.
In a smaller place such as Friston, landlords and agents tend to look after small blocks, flats over shops, sheltered housing and commercial units. The mastic around their frames and external joints ages like anywhere else.
Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.
- Location
- Friston (BN20)
- Wider area
- East Sussex
- Cover
- 12 months on every job
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Aftercare for building managers
A few simple habits keep the new joints working:
- Prioritise elevations facing the weather
- Keep a record of when each building was resealed
- Avoid piecemeal callouts where you can
- Ask residents or tenants to report leaks and draughts early
Add mastic joints to your cyclical inspections. Watch for splits, open gaps, hard or chalky surfaces and mastic pulling away, and note the building and elevation.
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.
Frames, entrances and external joints in Friston
With the shore within about 1 mile, Friston counts as a coastal location. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first, and they deserve more regular inspection. Friston sits in one of the drier corners of the country, the South East. External mastic still waits for dry faces and the right temperature, and elevations facing the sun and the prevailing weather are usually where frame mastic ages first.
With historic buildings such as Alfriston Clergy House (3.7 miles north-west of Friston) in the wider area, owners of older properties around Friston should expect mastic to need a product that suits old masonry. Buildings close to stations like Eastbourne station (3.2 miles east of Friston) are often flats over shops, with frame mastic to keep sound. Student accommodation around universities such as University of Brighton, 2.5 miles east of Friston, is usually managed block by block, which suits a planned mastic programme.
Friston is about 4 miles south-west of Eastbourne, in East Sussex. We send applicators to Friston for mastic joints. Across East Sussex, 308 places are covered, including Friston. For work in that direction, see our Brighton page (16 miles or so).
Business premises anywhere in BN20 are within our area for mastic joints. Buildings on Dene Side, Dene Close and Michel Close are within our area. We also cover East Dean (1 mile south-west), Birling Gap (1 mile south), Jevington (2 miles north), Old Town (3 miles east) and Meads (3 miles east) for mastic joints. Bigger towns within reach include Eastbourne (4 miles north-east), Bexhill-on-Sea (13 miles north-east), Seaford (4 miles west), Lewes (12 miles north-west), Hailsham (7 miles north) and Uckfield (15 miles north).
Landmarks near Friston
We work on buildings around The Tiger Inn. Friston’s nearest station is Eastbourne station, about 3.2 miles east of the centre. Other landmarks nearby include Eastbourne District General Hospital (3 miles north-east) and Filching Manor And Motor Museum (3 miles north). Green spaces nearby include Combe Hill.
What sealant work can’t fix
Honesty saves time and money. Fresh joints won’t solve:
- Glazing that needs replacing
- Materials that need asbestos testing before work
- Frames that are rotten, warped or broken
Not sure which it is? You can phone 01277 525 020 or email a schedule or drawings and we will tell you honestly before you book.
Surfaces we seal
- External wall and movement joints
- Communal kitchens and washrooms
- Balcony and threshold joints
- Window and door perimeters on blocks
- Shopfronts below residential blocks
- Communal entrances and stairwells
Questions about Friston
We manage a building near Eastbourne station. Can you help?
Yes, and several blocks can go on one quote. Send the address, photos of the elevations and your access arrangements, and we’ll give a fixed quote.
Can being near the sea in Friston affect the sealant we need?
It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.
Do you do block-wide mastic programmes?
Block-wide and estate programmes are common. You get a fixed quote per building or for the whole job.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.
How long does a job like this take?
That varies with the scale of the job, though a typical visit usually takes one or more days per building, depending on the joint lengths and the access. For bigger or phased jobs, we’ll set out a timescale with the quote.
Do you supply RAMS and insurance details?
Let us know your requirements: tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We are CHAS accredited and a Constructionline member.
What if the old mastic contains asbestos?
We don’t remove asbestos-containing materials. If old sealant is suspected, work stops until it’s tested, and the duty to manage asbestos sits with the dutyholder.
Why deal with it now?
A bead run over old mastic can look like a repair. It won’t grip the old sealant and soon comes away. Cutting out and resealing properly does it once. A failed joint lets water into a building whatever its size. Early resealing avoids the damage that follows a leak.
A quote for mastic joints depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.
Why choose Mastic Doctor in Friston
- Old sealant cut out, never sealed over
- Workmanship guaranteed for 12 months
- Coloured sealants to suit the setting, where available
- Specification-led, product-correct work
Read how commercial sealant jobs are priced or how we’re accredited.
Doing it in-house
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Our process
On arrival, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before any cutting starts, and the work normally takes a day or two for a single block, longer for an estate programme. Work in places the size of Friston is planned as a single visit where we can. Photos with rough sizes let us arrive with everything needed.
- Each block or building is walked and the failed joints recorded with the likely cause.
- You get a fixed quote, priced per building where that helps your budgeting.
- Dates, areas and access are agreed so residents or tenants can be told in advance.
- Old sealant is stripped and each face prepared back to firm material.
- Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
Before we start on site
- Agree which areas must stay open
- Send your site hours and access windows
- Make sure the joints can be reached
Quotes
For a fixed quote, ring 01277 525 020 or use the quote form with the site address and an outline of the work. You can also send details through our quote form.