Facade and window perimeter sealing in South Malling, East Sussex
Commercial sealant work in South Malling for contractors, FMs and building owners: facade joint and window perimeter sealing on commercial buildings, quoted at a fixed price.
- Damp patches beside frames after rain
- Patch repairs that keep failing
- Hard, chalky sealant that no longer flexes
Facade sealing for South Malling sites
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
When it isn’t the sealant
Sealant solves a lot, but not everything, and we are upfront when that’s the case. It won’t fix:
- Joints too narrow for the movement they take, which need redesign
- Replacing glass or failed glazing units
- Leaks from roofs, gutters or failed flashings rather than sealant joints
If in doubt, ring 01277 525 020 or send photos by email and we will say what we think before you book.
What we seal
- Shopfront frames
- Coping and flashing joints
- Window and door perimeters
- Perimeter joints where frames meet the structure
- Cladding panel joints
- Stone and brick facade joints
About our facade sealing in South Malling
External sealing depends on the weather more than most trades. The sealant needs a dry joint and temperatures inside the maker’s limits. We plan for that and keep you updated. Most enquiries involve weathered joints at frame-to-structure perimeters and leaks at window and door perimeters, on window and door perimeters, coping and flashing joints and shopfront frames. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in South Malling, preparation and product choice get the time they need.
In a smaller place such as South Malling, construction tends to mean small housing schemes, conversions and extensions to community buildings. Even a small site needs its perimeter and facade joints sized, backed and sealed properly.
What our 12-month guarantee covers is the way we did the job: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Place
- South Malling (BN7, BN8)
- Region
- East Sussex
- Guarantee
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Our process
Tell us your site hours and access windows and we’ll plan around them. While we are working, the area stays contained and tidy, and your contact hears from us before we move to the next area. Several jobs near South Malling can be grouped on one trip. Tell us your site hours and we’ll plan around them.
- Photos, drawings or a visit tell us about the joints and the access.
- We confirm the joint type, movement and the specified product.
- Failed beads are removed in full and both faces cleaned back.
- Primer is applied where the maker specifies it.
- Backing rod is fitted and the new sealant gunned in and tooled.
- We go over the completed work with you before leaving.
Before we start on site
- Have the specification and drawings to hand
- Tell us which areas need to stay in use
- Share the asbestos register for older buildings
Request a quote
Photos, drawings or a schedule of the joints are often enough for a fixed quote. If the job needs a look first, we’ll arrange a site visit.
Read more
Site staff or a sealant specialist?
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
New build and refits around South Malling
South Malling sits in one of the drier corners of the country, the South East. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so we time external mastic for dry faces and agree it with the site team. South Malling is about 43 miles 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.
Further education sites such as East Sussex College, 0.7 miles to the south of South Malling, are extended and refurbished from time to time, with mastic often programmed into the summer break. University estates such as University of Sussex (to the west of South Malling) tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal.
South Malling is about 1 mile north-east of Lewes, in East Sussex. Businesses, contractors and managing agents in South Malling use us for work on facade joints. 308 places across East Sussex fall within our area, South Malling among them. Our Brighton page has more on work in that area (7 miles or so).
Commercial sites across BN7 and BN8 are covered. For a building on Lee Road, New Road and Mill Road or nearby, we can quote for facade joints. South Malling sits on or close to the A26 and A2029, useful when we plan access and materials. Just outside South Malling, we also work in Lewes (1 mile south-west), Cliffe (1 mile south-east), Southover (1 mile south), Hamsey (1 mile north) and Offham (1 mile north-west). Further afield, our area takes in Eastbourne (14 miles south-east), Seaford (8 miles south-east), Hailsham (11 miles east), Crowborough (14 miles north-east), Uckfield (7 miles north-east) and Newhaven (6 miles south).
What’s near South Malling
Recent enquiries here include premises near Elephant and Castle pub, Priory School and Railway Land. The nearest railway station is Lewes station, roughly 0.7 miles south. A little further out are Lewes Victoria Hospital (0.8 miles south-west) and Lewes Castle (0.5 miles south-west). Open spaces near South Malling include Malling Down and Cliffe Hill.
More services for South Malling
Common problems we fix in South Malling
New sealant run over old sealant rarely holds. Fresh silicone won’t stick to cured silicone.
Any of the following is a good reason to get the joints checked over:
- Staining on stone next to old sealant
- Old perimeter mastic that has dried out
- Gaps between rainscreen or cladding panels
- Weathered joints at frame-to-structure perimeters
Units on estates such as Riverside Industrial Estate (under half a mile south of South Malling) tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal.
What to look for in a quote
- Proof of insurance
- Are they CHAS accredited or on Constructionline?
- Is the sealant right for the movement and the substrate?
- Their plan for phasing and protecting the area
Why act early in South Malling
Each spell of rain drives water past a failed facade joint. Behind the frame, that can mean damp plaster, stained ceilings, corroded fixings and damaged insulation. Resealing now costs less than repairing interiors later. A failed joint lets water into a building whatever its size. Early resealing avoids the damage that follows a leak.
We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote and we’ll price your job on its own details.
Why us?
- Constructionline member
- Fully insured, including public liability cover
- Clear, fixed quotes
- CHAS accredited contractor
Read our cost guide or our accreditations.
Keeping the joints sound
Cleaning and maintenance staff play a part too. Pass these on to them:
- Clear debris that holds water against joints
- Avoid patch repairs on failed facade joints
- Report water ingress at frames as soon as it shows
- Note when each elevation was last resealed
Let the new sealant cure before washing the facade or windows near it. Pressure washers and harsh cleaners can damage a fresh bead, so brief your window cleaners.
Use each reseal to correct the joint: correct depth, proper backing and a sealant that can take the movement. Repeating a faulty detail just repeats the failure.
Your questions answered
Can work at a site such as University of Sussex fit around teaching?
Yes, holiday working periods are the norm on campus jobs. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.
Is a smaller place like South Malling outside your area?
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.
Do you need to see the site first?
Many jobs can be quoted from photos, drawings or a joint schedule. If the job needs a look first, we will arrange a visit before quoting.
Is it okay to overlay old mastic?
No. A bead run over old sealant soon lifts. Our method is a full cut-out, cleaning, backing and a new bead.
Can one quote cover more than one building?
Yes. A group of buildings can go on one quote, with one point of contact.
Can you work in cold or wet weather?
Rain and frost can pause external sealing. The programme allows for it and we tell you if the forecast changes things throughout the job.
Do you replace failed glazing units?
No. We don’t install glazing systems, windows or glass. We seal the joints around them, such as perimeter joints where frames meet the structure.