Southfleet mastic sealing
Mastic sealing for Southfleet, from a contractor working since 2005. Fully insured and CHAS accredited.
- Worn sealant at communal door frames
- Occupiers reporting cold air round windows
- A mix of products and colours from past repairs
Mastic sealing near Southfleet
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing for commercial buildings in Southfleet
Across Southfleet and the rest of Kent, we work the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Addresses, photos of typical joints and a rough idea of quantities let us give a quick quote or we can visit. We work on balcony and threshold joints, shopfronts below residential blocks and communal kitchens and washrooms, and the usual reasons a site gets in touch are old repairs sealed over failed mastic and open joints in brickwork or panels. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Southfleet, that means joint design, primers and backing rod as standard.
Owners and agents with buildings around smaller places such as Southfleet tend to manage small terraces of association properties, converted barns and commercial units. Frame and wall-joint mastic on all of them ages and hardens.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.
- Location
- Southfleet (DA13)
- Wider area
- Kent
- Cover
- 12 months on every job
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Quoting for work in Southfleet
We price every job individually. The main factors are:
- The total length or number of joints
- Location, for remote and island sites
- Site requirements such as inductions and permits
- How much existing material needs removing
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you will have a fixed figure to work with.
Sending details for a quote
We can often quote from photos and a few details. It helps to include:
- Whether an asbestos survey exists
- What the building is and how it’s used
- The product your specification calls for
- How the joints are reached, and at what height
The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or call 01277 525 020 or email us if you’d rather talk the job through.
After the work
A few simple habits keep the new joints working:
- Check the asbestos register before any old mastic is disturbed
- Include mastic in your cyclical inspections
- Make it easy for occupiers to report draughts
- Reduce knocks to communal area joints
Add mastic joints to your cyclical inspections. Watch for splits, open gaps, hard or chalky surfaces and mastic pulling away, and note the building and elevation.
Failed mastic often goes unnoticed until heavy rain finds it. Acting at the first signs keeps it a straightforward reseal and saves internal repairs.
Do you need mastic sealing in Southfleet?
Many failed joints were sealed without backing rod, so the mastic is glued to the joint bottom too. It can’t stretch properly and it tears.
Any of the following is a good reason to get the joints checked over:
- Repeated reactive repairs to the same buildings
- Window mastic that has split and shrunk
- Movement joints with sealant missing
- Leaks at window and door perimeters
Landlords with units on estates such as Fawkham Business Park (1.7 miles south-west of Southfleet) can bring frame, door and external mastic across several units into one programme.
Before you book anyone
- Do they follow the manufacturer’s priming guidance?
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- How the existing material will be dealt with
- What level of public liability insurance do they hold?
Our process
Before we leave any area, we remove the tape, clean down and inspect every joint. Where the sealant needs time to cure before use, we tell you and sign the area. Jobs in and around smaller places like Southfleet are typically planned as a single visit, so we ask for photos and rough sizes first. That way the right products come on the day.
- We check the asbestos register for older buildings and look at the joints.
- The products and programme are set out in a fixed quote.
- Failed mastic is removed completely.
- The joints are prepared and resealed with the right product.
- Buildings are completed in turn.
Preparing the site
- Clear stock, furniture or equipment away from the joints
- Point out parking and an unloading spot
- Tell us what induction or permit system the site runs
Quotes
Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. For smaller jobs, photographs and a description will do.
Advice
General trades versus a specialist
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.
Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Towns and villages near Southfleet
Other services in Southfleet
How the job changes by surface
External movement joints
Movement joints are cleaned out, backed with rod and resealed with a sealant of the right movement class.
Commercial and mixed-use buildings
Where retail and residential share a building, so phasing has to suit both. Tell us your site hours and access windows and we will plan around them.
Frames, entrances and external joints in Southfleet
The South East is one of the drier parts of the UK. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first. Southfleet is about 19 miles from central London. Managed blocks of flats are a big part of commuter-belt property.
Student accommodation around universities such as University of Greenwich, 3.1 miles to the north-west of Southfleet, is usually managed block by block, which suits a planned mastic programme. Churches, halls and community buildings such as Church of St Nicholas are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time.
Southfleet is about 2 miles south-west of Northfleet, in Kent. Our applicators travel to Southfleet for work on mastic joints. We work across 931 places in Kent, large and small. There’s a separate page for London, about 19 miles away.
Commercial sites across DA13 are covered for mastic joints. Among the streets we cover are Red Street, Gloxinia Road and Brakefield Road, and sites on any of them can send details for a fixed quote. If your building is just outside Southfleet, we cover Hook Green (1 mile south-west), Northfleet Green (1 mile east), Betsham (1 mile north-west), Painters Ash (1 mile north-east) and Springhead (1 mile north). A short drive away, we cover Maidstone (13 miles south-east), Dartford (5 miles north-west), Sevenoaks (11 miles south-west), Gravesend (3 miles north-east), Tonbridge (15 miles south) and Swanley (7 miles west).
Landmarks near Southfleet
Locally, jobs take us to sites close to Northfleet School for Girls, Black Lion pub and Longfield Chalk Bank, among other places. The nearest railway station is Longfield station, roughly 1.5 miles south-west of the centre. Well-known places in the area include Gravesham Community Hospital (2.7 miles north-east) and Bluewater (2.9 miles north-west). Not far away are Sawyers Lake.
Southfleet: questions and answers
Will you take on work at estates like Fawkham Business Park, close to Southfleet?
Yes. We cover Southfleet and the area around it, including industrial estates, business parks and retail parks such as Fawkham Business Park. A few photos and the unit address let us price the work.
We manage a building near Longfield station. Can you help?
Yes, we work for agents, landlords and housing associations with blocks of every size. Give us the building’s details and say how residents are notified, and we’ll quote and plan to suit.
When is resealing likely to be due?
There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.
Do you guarantee the mastic work?
Every building we reseal has a 12-month guarantee. It applies to our workmanship rather than damage or problems with the frames.
Can you reseal a whole block or estate?
We can. We survey and price each building, then work through them in order, and the programme can start with the worst.
Do you work to architects’ specifications?
Yes. Send it with your enquiry, and we’ll price the work to it.
Can you seal joints high up on a block?
We talk through access for each building when we quote. Tell us the number of storeys and whether scaffold or other access is planned, and we will tell you how we’d approach it.