Streat facade sealing
We carry out facade joint and window perimeter sealing on commercial buildings in Streat and the surrounding area. Send photographs or drawings for a fixed quote.
- Failed seals around shopfront and entrance frames
- Staining on stone next to old sealant
- Failed sealant on precast panel joints
Facade sealing for businesses in Streat
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
What sealant work can’t fix
Part of a good diagnosis is knowing where sealant stops. You will hear from us if the cause turns out to be any of the following:
- Joints too narrow for the movement they take, which need redesign
- Installing or repairing glazing systems
- Leaks from roofs, gutters or failed flashings rather than sealant joints
If in doubt, call 01277 525 020 or send details through our quote form and we will say what we think before you book.
Joints and surfaces we work on
- Shopfront frames
- Coping and flashing joints
- Window and door perimeters
- Cladding panel joints
- Perimeter joints where frames meet the structure
- Stone and brick facade joints
How we handle facade sealing in Streat
External sealing depends on the weather more than most trades. The sealant needs a dry joint and temperatures inside the maker’s limits, and cold, damp starts can delay work. We build that into the programme and tell you if the forecast changes the plan. Site teams most often ask us about hard, chalky sealant that no longer flexes and failed sealant on precast panel joints, on shopfront frames, window and door perimeters and coping and flashing joints. For commercial sealant work in Streat, you deal with one contact from quote to sign-off, whether it’s one building or several.
In the countryside around places like Streat, conversion schemes put new frames into old stone, flint, brick or timber. Those joints need a sealant that suits an uneven, sometimes porous surface, and often a colour chosen for the building.
Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.
- Place
- Streat (BN6, BN7)
- Region
- East Sussex
- Guarantee
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Also near Streat
Other services in Streat
How the quote is worked out
What shapes the price:
- Location, for remote and island sites
- Any access equipment needed
- Specialist products, such as fire-rated or hygienic sealants
- Site requirements such as inductions and permits
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.
What to include in your enquiry
A good diagnosis starts with the right details. Let us know:
- Access details, including height
- The site address and postcode
- Specification clauses that apply
- Any dates the work must fit around
Need a figure for a tender or a budget? We will quote against your scope and drawings you can plan around. For a chat about it beforehand, phone 01277 525 020 or use the quote form.
Your questions answered
Can you take on a job at a hospital such as Lewes Victoria Hospital?
Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Is Streat too far out for you?
No. Places such as Streat are covered as much as the big towns. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.
What hours do you work?
The office is staffed Monday to Friday, from 8am until 5pm. Tell us your site hours and access windows and the work will be fitted around them.
Do you use silicone for external joints?
Most facade and window perimeter joints take a low-modulus neutral-cure silicone. Hybrid or MS polymer, polyurethane and polysulphide sealants suit others, depending on the substrate and the specification.
Can weather delay the job?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.
Can you send site paperwork?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we will confirm them with the quote.
Should we check old sealant for asbestos?
In older non-domestic buildings, old sealant can contain asbestos. Check the asbestos register or survey before it is disturbed, and if anything is suspected, we stop until it’s tested. Removal of asbestos isn’t something we do.
Looking after the joints
Your facilities or cleaning team can help the joints last. Share these points with them:
- Avoid patch repairs on failed facade joints
- Check the asbestos register before old mastic is disturbed
- Walk the elevations once or twice a year
- Plan facade sealing alongside redecoration
Let the new sealant cure before washing the facade or windows near it. Pressure washers and harsh cleaners can damage a fresh bead and tell your cleaning contractor.
Coordinate facade sealing with other external works. Sharing the access keeps the cost down.
Should maintenance staff do it?
Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong usually costs more in the end than doing them right.
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.
Leave it or put it right?
Leaving failed perimeter sealant also makes the eventual job bigger: wet edges break down, so repairs may be needed before resealing. Early action keeps it simple. One visit to deal with every failing joint makes more sense than several trips to a place like Streat, rather than one at a time. Send photographs of each area and we’ll quote for the lot.
There’s no price list, 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 choose Mastic Doctor in Streat
- Constructionline member
- Joints cleaned back to sound surfaces
- Fixed quotes based on photos, drawings or a visit
- CHAS accredited
Read what affects the cost and our accreditations and insurance.
On site: what to expect
Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself typically takes longer on a full elevation than on a handful of window perimeters, and it always depends on dry weather, and we clear our waste as we work. Smaller jobs around Streat can be grouped with others nearby, which keeps travel down. A fixed quote is given before anything starts.
- We look at the joints, the drawings and the access before pricing.
- Failed sealant is cut out along its full length.
- Joint faces are cleaned to firm, sound material, with primer where the sealant maker specifies it.
- Backing rod, or bond-breaker tape in shallow joints, limits the depth.
- The new sealant goes in and is tooled firmly onto both faces.
- The completed runs are checked with you, then the 12-month guarantee applies.
Getting the site ready
- Make sure the joints can be reached
- Send any specification or drawings in advance
- Tell us your opening times and when work is allowed
Get a fixed quote
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we’ll arrange a site visit if anything is unclear.
Read more
Contractors’ notes for Streat
Rainfall across the South East, Streat included, is lower than in many parts of the UK. 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. Streat lies roughly 40 miles out from central London. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, so mastic packages have to keep pace with busy programmes.
Building work at universities like University of Sussex, 3.3 miles north-east of Streat, is often timed for the summer, mastic included. For contractors at a college like Plumpton College, 1 mile south of Streat, perimeters and internal sealant are timed for the holidays. Recladding or extending a unit at a site like Ditchling Common Business Park (to the north of Streat) brings panel joints and frame perimeters into the programme.
Streat is about 3 miles south-east of Burgess Hill, in East Sussex. Commercial clients in Streat use us for work on facade joints, as part of our coverage of East Sussex. Streat is one of 308 places in East Sussex on our list. Our Brighton page has more on work in that area.
If you need facade sealing in BN6 and BN7, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Nearby places we also cover include Plumpton (1 mile south-east), Plumpton Green (1 mile north-east), East Chiltington (1 mile east), Ditchling Common (2 miles north) and Chiltington (2 miles east) for facade joints. A short drive away, we cover Seaford (13 miles south-east), Lewes (5 miles south-east), Hailsham (15 miles east), Crowborough (14 miles north-east), Uckfield (9 miles north-east) and Newhaven (10 miles south-east).
Near you in Streat
The closest station to Streat is Plumpton station, about 1.1 miles north-east. A little further out are Lewes Victoria Hospital (4.5 miles south-east) and Ditchling Museum of Art + Craft (1.6 miles west). The countryside around Streat includes Bedelands Farm Nature Reserve and Ditchling Beacon.