Mastic Sealing in Farningham
Planning work on a mastic joint in Farningham? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- No planned programme for sealant
- Worn sealant at communal door frames
- Brittle perimeter mastic across a building
Mastic sealing for businesses in Farningham
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
General trades versus a specialist
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Mastic sealing in Farningham
Our clients include managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios. A planned, building-by-building programme often works better than reacting to each complaint and we quote and schedule each building in turn. If you’re dealing with open joints in brickwork or panels and window mastic that has split and shrunk, we can help. Most enquiries from Farningham start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
For buildings around smaller places like Farningham, we group work so one trip covers it. Send photographs of the frames and joints and we will give a fixed quote.
Our workmanship is guaranteed for 12 months. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Where
- Farningham (DA4)
- Wider area
- Kent
- Cover
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Places near Farningham
More services for Farningham
Frames, entrances and external joints in Farningham
The South East is one of the drier parts of the UK. External mastic still waits for dry faces and the right temperature, and elevations facing the sun and the prevailing weather are normally where frame mastic ages first. Farningham is about 16 miles from central London. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres, and window and balcony mastic on them tends to age at the same rate.
If your remit includes a building such as The Anthony Roper Primary School, frame and door mastic can be programmed for the holidays. Blocks of flats and mixed-use buildings often cluster around stations such as Eynsford station, 1.4 miles south-west of Farningham, and their window and balcony mastic tends to age at the same rate across a building.
Farningham is about 5 miles south of Dartford, in Kent. We cover commercial sites throughout Farningham, for single jobs and planned programmes alike. 931 places across Kent fall within our area, Farningham among them. For work in that direction, see our London page.
Postcode districts covered here: DA4 for mastic joints. Streets here include High Street, London Road and South Hall Close. Just outside Farningham, we also work in Eynsford (1 mile south-west), Horton Kirby (1 mile north-east), Maplescombe (2 miles south-east), Speed Gate (2 miles east) and Fawkham Green (3 miles east). Bigger towns within reach include Maidstone (15 miles south-east), Dartford (5 miles north), Sevenoaks (7 miles south), Gravesend (8 miles north-east), Tonbridge (13 miles south) and Northfleet (7 miles north-east).
Near you in Farningham
We work on buildings around Pied Bull pub. Farningham’s nearest station is Eynsford station, about 1.4 miles south-west. Nearby you will also find Eynsford Castle (0.7 miles south-west) and Darenth Park Hospital (4.2 miles north). Open spaces near Farningham include The Warren.
Building owners, agents and FMs in Farningham
FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.
We work for building owners and managing agents on everything from one building to a spread of sites. Several sites can go on one quote, which keeps the paperwork simple.
How a job runs
When we get to site, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, and the work typically takes anything from a day to a few weeks, depending on the number of buildings and joints. If others near Farningham need work, visits can be combined, which keeps travel down. You will have a fixed quote before work starts.
- We inspect the joints, building by building, and record what has failed and why.
- You get a fixed quote, priced per building where that helps your budgeting.
- The programme is fixed with you, including dates you can pass on to residents or tenants.
- Old sealant is stripped and each face prepared back to firm material.
- Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
- Completed joints are inspected and carry a 12-month workmanship guarantee.
Before we start on site
- Point out any areas we must not close
- Make sure the joints can be reached
- Send asbestos survey details if the building is pre-2000
Quotes
Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, call 01277 525 020 or send photos by email.
Related advice
Keeping the joints sound
Your facilities or cleaning team can help the joints last. Share these points with them:
- Make it easy for occupiers to report draughts
- Track which buildings were done and when
- Include mastic in your cyclical inspections
- Look at the sunniest and most exposed elevations first
Where a paintable product was specified, it can be painted after curing. Non-paintable silicone shouldn’t be painted over unless told otherwise.
Planned resealing is easier to budget than emergency repairs. A programme can start with the worst buildings so spending is spread.
Your questions answered
Is Farningham too small for you to travel to?
No. Small places get the same service as large ones. We work across Greater London and the South East. Good photographs up front let us bring everything on the first visit.
Will you take on work at estates like Southern Cross Industrial Estate, close to Farningham?
Yes. Estates, retail parks and business parks around Farningham, Southern Cross Industrial Estate among them, are all within reach. A few photographs and the unit address let us price the work.
What paperwork can you provide?
We are CHAS accredited, a Constructionline member and carry public liability insurance. For specific documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
What will the job cost?
There isn’t a price list, because every site is different. Send photographs or drawings and we will price it at a fixed figure.
How do I request a quote?
The quote form is the simplest route, though you can also call the office on 01277 525 020 or email drawings and photos. Include photos or drawings if you have them.
Can you follow the specification on our project?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and any queries are raised before we start.
Does the weather affect the work?
It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.
What sealant work can’t fix
Part of a good diagnosis is knowing where sealant stops. We’ll tell you if the real problem is any of the following:
- Roof leaks, gutters or failed flashings that aren’t sealant joints
- Asbestos-containing sealant, which we don’t remove
- Failed window or door frames, which need a window contractor
Not sure which it is? You can ring 01277 525 020 or email the details over and we will tell you honestly.
What we seal
- Window and door perimeters on blocks
- Communal entrances and stairwells
- Communal kitchens and washrooms
- External wall and movement joints
- Shopfronts below residential blocks
- Balcony and threshold joints
Common problems we fix in Farningham
Communal entrances and corridors see a lot of wear, and low-level joints get damaged. Cleaning products add to the wear.
It’s worth sending us details if you spot any of the following:
- Occupiers reporting cold air round windows
- A mix of products and colours from past repairs
- Damaged joints in communal entrances and corridors
- Mastic failing across several blocks on an estate
Older community buildings, Church of Saint Peter and Saint Paul among them, often have frames of mixed ages whose mastic varies.
Questions to ask before you book
- Whether primer will be used where the manufacturer specifies it
- What the guarantee covers, and for how long
- How they’ll work around occupants
- Their pre-qualification and accreditations