Construction and new-build mastic in South Street, Kent
Work needed on a mastic package in South Street? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Sanitary sealant damaged by following trades
- External joints sealed in damp or cold conditions that are now failing
- A mastic package split between trades with no clear owner
Construction mastic for businesses in South Street
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Our process
Diagnose, treat, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. For work around South Street, we aim to finish in one visit, so photos and measurements up front really help. Then the right materials arrive with us.
- First we look at the scope on site or from drawings.
- A fixed quote sets out scope, products and phasing.
- Site paperwork is confirmed and our CSCS-carded applicators are inducted.
- Sealing follows the programme as areas are released.
- Any frame gaps or issues outside our scope are flagged to the site team.
- The package is closed out, snags cleared and backed by our 12-month guarantee.
Before we start on site
- Clear stock, furniture or equipment away from the joints
- Let building users know which areas are affected
- For older buildings, check the asbestos register before work
Ask for a quote
Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to call the office on 01277 525 020 or email us with what you know.
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How we handle construction mastic in South Street
Since 2005 we have worked alongside main contractors, developers and fit-out firms. We price from drawings and the specification, agree the sequence with the site team and seal as areas are released. For construction mastic on a scheme in South Street, send drawings through our quote form, or phone or email us to talk it through. We work on window and door perimeters, cladding and panel joints and floor and skirting junctions, and the usual reasons a site gets in touch are a long mastic snag list close to completion and new external sealant already peeling away. A specialist sealant contractor works differently from a general builder: in South Street, that means joint design, primers and backing rod as standard.
Conversions of older rural buildings near smaller places such as South Street 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 usually what’s needed.
A 12-month guarantee applies to all our work. If an installation problem shows up, speak to us on 01277 525 020 or email a schedule or drawings and we’ll arrange a return visit.
- Where
- South Street (DA13)
- Wider area
- Kent
- Cover
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
What we can’t put right
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Deciding which fire-stopping product a penetration needs
- Rework caused by others damaging completed areas
- Defective windows, doors or glazing units (the supplier or installer’s job)
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.
Where we work in South Street
- Internal decorators’ caulk
- Window and door perimeters
- Floor and skirting junctions
- Brick and block movement joints
- Sanitary and kitchen joints
- Cladding and panel joints
How the job changes by surface
Window and door perimeters
Internal perimeters are usually sealed with a paintable product where decorating follows. We follow what’s specified with colours matched to the frame where needed.
Snagging before handover
Damaged, missed or untidy joints make up most snag lists. We price snagging as part of the package or as a separate visit, depending on what suits the programme.
Places near South Street
Also in South Street
When to call us in South Street
On construction sites, joints typically fail early because of when they were sealed, not what was used. If sealant goes in before the last trades are through, it gets knocked, painted over or contaminated, and the joint has to be redone.
Typical triggers for a call:
- Frame perimeters left unsealed or poorly sealed
- Sanitary sealant damaged by following trades
- Frame gaps too wide for sealant alone
- A mastic package split between trades with no clear owner
Historic houses such as Cobham College (3.3 miles north-east of South Street) are a reminder of the older buildings in the wider area, where sealing against old stone, brick or timber needs compatible products.
Questions to ask before you book
- Will RAMS and insurance details be available?
- Whether their applicators hold CSCS cards
- What the guarantee covers, and for how long
- What level of public liability insurance do they hold?
Owners, agents and contractors
If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. South Street can form part of a wider programme across Kent.
Questions about South Street
Can you keep pace with our programme in South Street?
Yes. The mastic is planned around your key stages. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
Is South Street off your patch?
Not at all. South Street is within our area. We cover Greater London and the counties of the South East. Good photographs up front let us bring everything on the first visit.
Can you seal external joints in wet or cold weather?
Weather matters for external sealing: each sealant has a temperature range, and the joint must be dry. External work is sequenced with some flexibility.
What hours do you work?
Give us your site hours and any access windows in your enquiry, and we’ll plan around them. You can reach the office between 8am and 5pm, Monday to Friday.
Which sealant will you use?
The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.
Do you seal on top of existing sealant?
No, never. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.
Do you take on mastic snagging only?
Yes. Share the list and photographs, and a fixed quote follows, then clear it to your programme.
Cost factors for mastic packages
These are the things that shape the price:
- Specialist products, such as fire-rated or hygienic sealants
- Site requirements such as inductions and permits
- Whether old sealant has to be cut out first
- How much there is to seal
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.
Before you send an enquiry
For an accurate fixed quote, we need to understand the site. Send us:
- What the building is and how it’s used
- Access details, including height
- Drawings or a marked-up plan, if available
- When you need the work done
Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.
Contractors’ notes for South Street
South Street is about 22 miles from central London. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, so mastic packages have to keep pace with busy programmes. South Street sits in one of the drier corners of the country, the South East. Winter mornings still bring frost and condensation on frames and panels, which is why external dates are agreed with the site manager.
Units on estates such as Bowes Industrial Centre, 0.6 miles to the north of South Street, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal. When a school such as Culverstone Green Primary School is extended or refurbished, the mastic package is often squeezed into the holidays.
South Street is about 6 miles south of Gravesend, in Kent. Commercial clients in South Street use us for work on mastic packages. Across Kent, 931 places are covered, including South Street. For work in that direction, see our London page (22 miles or so).
Work on mastic packages is covered throughout DA13, whatever the building. Among the streets we cover are South Street and Chapman's Hill, and sites on any of them can send details for a fixed quote. Just outside South Street, we also work in New Street (1 mile west), Priestwood Green (1 mile east), Culverstone Green (1 mile south), Harvel (1 mile south-east) and Priestwood (1 mile east). Bigger towns within reach include Maidstone (10 miles south-east), Dartford (8 miles north-west), Sevenoaks (9 miles south-west), Royal Tunbridge Wells (15 miles south), Gravesend (6 miles north) and Tonbridge (11 miles south).
Local landmarks in South Street
In South Street, that means premises near Trosley Country Park and Meopham School and the streets around them. The nearest railway station is Meopham station, roughly 2.4 miles north. A little further out are Leybourne Castle (4.5 miles south-east) and Coldrum Long Barrow (2.3 miles south-east).