Mastic sealing for building owners and managing agents in Platt's Heath, Kent
Mastic sealing for building owners, managing agents and housing associations in Platt's Heath and across Kent. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Complaints coming in block by block
- Leaks at window and door perimeters
- Draughts at frames across a block
Mastic sealing in Platt's Heath
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
About our mastic sealing in Platt's Heath
Blocks are lived in, so access and disruption have to be thought through. Dates, areas and the order of work are agreed with you in advance so you can let residents know what is happening. Entrances and stairwells are kept in use while we work. Site teams most often ask us about complaints coming in block by block and draught complaints from residents or tenants, across balcony and threshold joints, window and door perimeters on blocks and shopfronts below residential blocks. Most enquiries from Platt's Heath 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 owners with a single building near Platt's Heath, we plan to finish in one visit where possible. Send photos of the frames and joints and we will give a fixed quote.
Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we’re clear about what is covered before work starts.
- Where
- Platt's Heath (ME17)
- Region
- Kent
- Cover
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Diagnose, treat, sign off
At the end of each section, the masking comes off, the area is cleaned and every joint is checked. Where the sealant needs time to cure before use, we tell you and sign the area. Rural sites near Platt's Heath may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.
- Each block or building is walked and the failed joints recorded with the likely cause.
- You get a fixed quote, priced per building where that helps your budgeting.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- Failed mastic is removed and the faces taken back to sound, dry material.
- Backing rod and primer go in where the joint and the product need them, then new sealant is applied and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
What we need from you
- Send asbestos survey details if the building is pre-2000
- Tell us which areas need to stay in use
- Send your site hours and access windows
Getting a fixed quote
Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. To get it moving, call the office on 01277 525 020 or email a schedule or drawings.
Advice
Looking after the joints
For the best life from the joints:
- Share the asbestos register when you send details
- Avoid piecemeal callouts where you can
- Ask residents or tenants to report leaks and draughts early
- Make mastic part of routine maintenance checks
Include sealant in planned building inspections. Check for splits, open joints, brittle mastic and lifting edges and record where they are.
Leaks at window perimeters spoil finishes and can affect frames. Early resealing is far simpler than repairs inside.
When it isn’t the sealant
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Asbestos-containing sealant, which we don’t remove
- Leaks through the frame itself rather than the perimeter
- Substrate edges that need repairing first
If you’re not sure, just call 01277 525 020 or email drawings and photos and we’ll give you a straight answer.
What we seal
- Shopfronts below residential blocks
- External wall and movement joints
- Communal kitchens and washrooms
- Window and door perimeters on blocks
- Communal entrances and stairwells
- Balcony and threshold joints
FAQs: Platt's Heath
Do you cover business parks and estates near Platt's Heath, such as Roebuck Business Park?
Yes. Estates, retail parks and business parks around Platt's Heath, Roebuck Business Park among them, are all within reach. A few photographs and the unit address let us price the work.
Is Platt's Heath too small for you to travel to?
No. Places such as Platt's Heath are covered as much as the big towns. We work across Greater London and the South East. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.
Does weather matter for sealant work?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.
Who decides which product is used?
A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
Is it fine to apply new sealant on top of old?
No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.
How long does a typical visit take?
It depends on the scope, but the work normally takes anything from a day to a few weeks, depending on the number of buildings and joints. For bigger or phased jobs, we will set out a timescale with the quote.
Do you need to see the site first?
Many jobs can be quoted from photographs, drawings or a joint schedule. Where they aren’t, we arrange a site visit.
What sets the cost
What shapes the price:
- Site requirements such as inductions and permits
- Removal of failed or old sealant
- Access and working height
- Travel to remote or island sites
A quote for mastic joints depends on how many there are, their condition and the access. Call for a quote.
What to include in your enquiry
Good information means a firmer quote. When you get in touch, include:
- The postcode of the building
- Access details, including height
- When you need the work done
- Any specification or named product
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photographs and a few notes.
General trades versus a specialist
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
What happens if it’s left?
Failed perimeter mastic lets cold air in around frames and the windows usually get the blame. Resealing the perimeters is often the simpler fix where the frames themselves are sound. Older rural buildings around Platt's Heath move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.
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 and we’ll explain how it’s made up.
Why appoint us
- Colours chosen to suit frames, cladding or finishes where possible
- Workmanship guaranteed for 12 months
- A Constructionline member, so easy to vet
- Failed material removed, not covered up
Frames, entrances and external joints in Platt's Heath
Platt's Heath lies roughly 39 miles out from central London. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres, and window and balcony mastic on them tends to age at the same rate. The South East is one of the drier parts of the UK. Even so, frame mastic only goes on in dry, workable conditions, and elevations facing the sun and the prevailing weather are typically where frame mastic ages first.
For agents with blocks near Lenham station (1.2 miles north-east of Platt's Heath), a block-wide mastic programme deals with frames, balconies and entrances in one go. For owners of several units at places like Roebuck Business Park, 1.4 miles to the north-west of Platt's Heath, one programme can deal with frame and external mastic across the lot. Student accommodation around universities such as Canterbury Christ Church University, 3.1 miles to the north of Platt's Heath, is usually managed block by block, which suits a planned mastic programme.
Platt's Heath is about 7 miles south-east of Maidstone, in Kent. Businesses, contractors and managing agents in Platt's Heath can call on us for mastic joints. Across Kent, 931 places are covered, including Platt's Heath. We also cover London, some 39 miles away.
Postcode districts covered here: ME17. For a building on School Lane, Headcorn Road and Green Lane or nearby, send details and we will quote for mastic joints. Close to Platt's Heath, our area also takes in Liverton Street (1 mile south-west), Sandway (1 mile north-east), Boughton Malherbe (1 mile south-east), Fairbourne Heath (1 mile west) and Grafty Green (1 mile south). A short drive away, we cover Maidstone (7 miles north-west), Ashford (10 miles south-east), Sittingbourne (9 miles north), Faversham (11 miles north-east), Minster (14 miles north) and Kings Hill (13 miles west).
Local landmarks in Platt's Heath
We work on buildings around Kiln Wood, Wishful Thinker pub and The Lenham School, among other places. The closest station to Platt's Heath is Lenham station, about 1.2 miles north-east of the centre. A little further out are The Dog Collar Museum (2.9 miles north-west) and Coldbridge Castle (1.8 miles south).