Construction and new-build mastic in Swanscombe, Kent
Looking for construction mastic in Swanscombe? It’s simple: send details, get a quote, we seal, guaranteed.
- Different trades sealing to different standards
- Sanitary sealant damaged by following trades
- Failed sealant in an existing building being refurbished
Construction mastic near Swanscombe
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
About our construction mastic in Swanscombe
Since 2005 we’ve worked alongside main contractors, developers and fit-out firms. Quantities come off the drawings, the sequence is agreed with the site manager and the work follows the trades. For construction mastic on a scheme in Swanscombe, send drawings through our quote form, or phone or email us to talk it through. We work on sanitary and kitchen joints, window and door perimeters and brick and block movement joints, and the failures we’re asked to look at most are new external sealant already peeling away and frame gaps too wide for sealant alone. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Swanscombe, preparation and product choice get the time they need.
On a small site around Swanscombe, the mastic is best done in the fewest visits we can manage. Tell us when scaffold comes down and when decoration finishes, and we’ll plan around those stages.
Our workmanship is guaranteed for 12 months, wherever the site is. If our installation lets you down in that time, we return and fix it.
- Where
- Swanscombe (DA9, DA10)
- Region
- Kent
- Cover
- 12 months on our workmanship
- Price
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Aftercare for building managers
Cleaning and maintenance staff play a part too. Pass these on to them:
- Check frame gaps are within the sealant’s range before sealing
- Keep scrapers and abrasive pads off new beads
- Put any product change through the designer first
- Bring the mastic contractor in after the last trades are through
If a joint is damaged after sealing, flag it early. We can return to clear snags before handover.
External joints sealed in poor weather are a common cause of early failure. Holding off until conditions suit avoids callbacks so external sequencing builds in some flexibility.
Our process
A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work usually takes a day or two on a small fit-out and several weeks on a large multi-storey package, and we clear our waste as we work. Work in places the size of Swanscombe is planned as a single visit where we can. Photos with rough sizes let us arrive with everything needed.
- Drawings, specification and programme come to us.
- Quantities are measured and a fixed price returned.
- We agree with the site team which areas come first.
- Plots or floors are sealed as they’re handed over.
- 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.
Preparing the site
- Tell us your opening times and when work is allowed
- Arrange parking or a loading space
- Have the specification and drawings to hand
Ask for a quote
For a fixed quote, give us a call on 01277 525 020 or email us. Our quote form is another easy route.
Advice
For managing agents and facilities managers
We work for building owners and managing agents on everything from one building to a spread of sites around Swanscombe. One quote can cover more than one site, which keeps the paperwork simple.
Whether you’re a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.
Different surfaces, different methods
Snagging before handover
Snags typically come from damage by following trades, missed joints or poor earlier work. We price snagging as part of the package or as a separate visit, depending on what suits the programme.
Fire-rated sealant where specified
Where the specification calls for fire-rated or intumescent sealant around service penetrations or linear gaps, we install it to the manufacturer’s tested detail. The design and sign-off of fire stopping sit with the designer, principal designer or fire engineer.
Common questions from Swanscombe clients
Can work at a site such as University of Greenwich fit around teaching?
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 will confirm them alongside the quote.
Is hospital work, at somewhere like Darent Valley Hospital, something you do?
Yes, provided the work is planned with the site’s estates team. Work is phased so departments keep running, under the site’s own rules.
Is it fine to apply new sealant on top of old?
No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
How do we ask for a quote?
You can use the quote form on this site; alternatively, call the office on 01277 525 020 or send photos by email. Photos, drawings or a joint schedule help us quote quickly.
What do you charge?
We don’t publish prices, because every site is different. With photos or drawings, we can give you a fixed quote.
Will you come and look before quoting?
Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we’ll arrange a visit.
Do you have public liability insurance?
Yes. Our insurance certificate can be sent alongside the quote.
Leave it or put it right?
On a refurbishment, there’s a choice between resealing existing frames and replacing them. Sound frames often need only a new perimeter seal. We’ll say so if a frame itself is the problem. Sealant hardens, cracks and loses grip with age, UV and movement. Renewing it in good time keeps the building weathertight.
The product called for affects the cost, and so does the preparation. Access, phasing and site requirements come into it too.
Why appoint us
- Clear, fixed quotes
- Our applicators hold CSCS cards
- Constructionline member
- 12-month guarantee on workmanship
See what affects the cost and our accreditations and insurance.
Nearby places to Swanscombe
More services for Swanscombe
General trades versus a specialist
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.
Certain joints really need a specialist: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
New build and refits around Swanscombe
The area within 2 miles of Swanscombe holds several hotels. When hotels extend or refit, the work is normally squeezed between peak periods, mastic included. Swanscombe is about 17 miles from central London. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, and each scheme needs its mastic sealed to programme.
On a campus such as University of Greenwich, 1.1 miles south-west of Swanscombe, new teaching buildings and residences are normally built and refurbished around the academic year. When units on a site such as Galley Hill Trading Estate, 0.7 miles east of Swanscombe, are refurbished or reclad, the panel joints and window perimeters are part of the mastic package. For contractors at a school such as Knockhall Primary School, sealing has to be finished before term starts.
Swanscombe is about 3 miles east of Dartford, in Kent. Anywhere in DA9, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Our Kent coverage takes in 931 places, from busy centres to rural villages. We also cover London, around 17 miles from Swanscombe.
We cover the DA9 and DA10 postcode districts for mastic packages. For a building on London Road, Craylands Square and High Street or nearby, we can quote for mastic packages. Being close to the A206 and A226, Swanscombe is straightforward for us to reach. Nearby places we also cover include Greenhithe (1 mile north-west), Stone (1 mile west), Bean (1 mile south), West Thurrock (2 miles north) and Darenth (2 miles south-west) for mastic packages. Further afield, our area takes in Dartford (3 miles west), Sevenoaks (12 miles south), Gravesend (4 miles east), Northfleet (3 miles south-east), Swanley (6 miles south-west) and Kings Hill (13 miles south).
Local landmarks in Swanscombe
Recent enquiries here include premises near Castle Hill Park, The Ebbsfleet Academy and The Pier Hotel. The closest station to Swanscombe is Greenhithe for Bluewater station, roughly 0.5 miles west. A little further out are Stone Castle (0.7 miles south-west) and Bluewater (1 mile south-west). Not far away are Sawyers Lake and Chafford Gorges Nature Park.