
Streat construction mastic
Mastic packages for new-build and refurbishment projects in Streat. CHAS accredited and fully insured, with a 12-month guarantee.
- Missed perimeter joints on a new elevation
- Cracks opening in caulked internal joints
- A mastic package split between trades with no clear owner
Construction mastic in Streat
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Commercial clients in Streat
Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, with each stage agreed with your site contact.
Hospitality, education, healthcare, office and retail clients come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.
Construction mastic in Streat, done properly
The programme rarely stands still, so the mastic package has to flex with it. We agree a sequence at the start and adjust it as the site manager releases areas and we don’t seal before other trades have finished in an area. That keeps the work right first time and saves rework. We work on window and door perimeters, cladding and panel joints and floor and skirting junctions, and the failures we are asked to look at most are external joints sealed in damp or cold conditions that are now failing and missed perimeter joints on a new elevation. Facilities teams, main contractors and managing agents in Streat tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
Conversions of older rural buildings near smaller places such as Streat bring stone, flint, brick and timber up against new glazing. A product that grips an irregular face, with a colour that suits the building’s character, is typically what’s needed.
Our workmanship is guaranteed for 12 months, in Streat as everywhere else we work. If a joint we sealed fails because of how it was installed, we come back and put it right.

- Place
- Streat (BN6, BN7)
- Region
- East Sussex
- Cover
- 12 months on every job
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
What we can’t put right
Being straight saves everyone time. Fresh joints won’t solve:
- Faulty frames rather than failed sealant
- Fire-stopping design or sign-off (that’s for the designer, fire engineer and building control)
- Frames fitted out of tolerance
If in doubt, give us a call on 01277 525 020 or send details through our quote form and we’ll say what we think before you book.
Where we work in Streat
- Sanitary and kitchen joints
- Cladding and panel joints
- Brick and block movement joints
- Window and door perimeters
- Internal decorators’ caulk
- Floor and skirting junctions
Why deal with it now?
A cheaper sealant can look like an easy saving on a large package. A failed joint in the defects period costs far more than the product difference and external joints are where it shows first. Where an alternative is genuinely suitable, we will say so. Around Streat, it’s better to renew all the failing joints at once, rather than one at a time. Send photos of each area and we’ll quote for the lot.
The specified product makes a difference, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.
What you get with us
- CHAS accredited contractor
- Public liability insurance in place
- Matching to RAL references, product permitting
- Old sealant cut out, never sealed over
Take a look at our cost guide or how we’re accredited.
Towns and villages near Streat
More services for Streat
FAQs: Streat
Could you schedule work at a campus like University of Sussex for the vacation?
Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.
Do you cover business parks and estates near Streat, such as Ditchling Common Business Park?
Yes. Our area takes in Streat and its surroundings, with estates and business parks such as Ditchling Common Business Park included. Send details of the unit and the work through our quote form for a quick quote.
Do you do fire-rated sealing on new builds?
It can be part of the package where specified. Tell us what records you need and we will confirm with the quote.
Can staff carry on working while you’re here?
In the majority of cases, yes. Phased work can be planned so areas stay in use.
How long does a typical visit take?
It depends on the scope, though a typical visit typically takes anything from a day of snagging to several weeks of plot-by-plot sealing on a phased scheme. For bigger or phased jobs, we’ll set out a timescale with the quote.
Does weather affect external mastic work?
External mastic depends on conditions: each sealant has a temperature range, and the joint must be dry. We plan external elevations with that in mind.
What do you charge?
Each job is quoted on its own details. To get one, call the office on 01277 525 020 or send details through our quote form.
New build and refits around Streat
Rainfall across the South East, Streat included, is lower than in many 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. Streat is about 40 miles from central London. Construction around the commuter belt mixes station-side flats with refurbished offices and units, and main contractors there need mastic that keeps to the programme.
For contractors on a campus like University of Sussex, which lies north-east of Streat, facade and perimeter sealing has to fit around students and term dates. 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. Extensions at sites like Lewes Victoria Hospital (to the south-east of Streat) typically sit beside working departments, and the mastic follows strict access rules.
Streat is about 3 miles south-east of Burgess Hill, in East Sussex. We send applicators to Streat for mastic packages. Our East Sussex coverage takes in 308 places. Brighton is covered too, around 6 miles from Streat.
If you need construction mastic in BN6 and BN7, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. 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). Further afield, our area takes in 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, roughly 1.1 miles north-east. Nearby you’ll also find Lewes Victoria Hospital (4.5 miles south-east) and Ditchling Museum of Art + Craft (1.6 miles west). For a walk, there’s Bedelands Farm Nature Reserve and Ditchling Beacon.
How a job runs
We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. For work around Streat, we aim to finish in one visit, so photos and measurements up front really help. Then the right materials arrive with us.
- Drawings, specification and programme come to us.
- We take off quantities and return a fixed quote.
- The sequence is agreed with the site manager.
- Each area is sealed when it’s released.
- Every joint is cleaned, set to depth and sealed with the specified product.
- After snagging, the work is handed over under our 12-month guarantee.
Getting the site ready
- Tell us which areas need to stay in use
- Share the asbestos register for older buildings
- Share your working hours and any access restrictions
Ask for a quote
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.
Related advice
How the job changes by surface
Snagging before handover
Damaged, missed or untidy joints make up most snag lists. Snagging can be included or priced separately.
External facade and movement joints
Many facade substrates need a primer before sealing. We prime where the manufacturer specifies.
Aftercare for building managers
A few simple habits keep the new joints working:
- Ask installers to correct oversized gaps first
- Keep scrapers and abrasive pads off new beads
- Stick to the specified sealant rather than a generic substitute
- Don’t force external sealing on a damp or frosty day
Once an area is sealed, protect it from following trades. New beads should be left to cure before cleaning or decorating nearby.
Frames with gaps too wide for sealant need sorting before the mastic goes on. Sealant stretched over an oversized gap won’t last. We flag them as soon as we see them.